MUNIHOLDINGS CALIFORNIA INSURED FUND III INC
N-2, 1998-09-18
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<PAGE>
 
  AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON SEPTEMBER 18, 1998
                                              SECURITIES ACT FILE NO. 333-
                                      INVESTMENT COMPANY ACT FILE NO. 811-08973
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
 
                                --------------
                                   FORM N-2
 
 [X]        REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
 [_]                     PRE-EFFECTIVE AMENDMENT NO.
 [_]                     POST-EFFECTIVE AMENDMENT NO.
                                    AND/OR
 [X]    REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940
 [X]                            AMENDMENT NO. 1
                       (CHECK APPROPRIATE BOX OR BOXES)
 
                                --------------
 
                MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.
              (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)
 
                                --------------
 
                            800 SCUDDERS MILL ROAD
                         PLAINSBORO, NEW JERSEY 08536
                   (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)
 
                                --------------
 
                                (609) 282-2800
             (REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE)
 
                                --------------
 
                                 ARTHUR ZEIKEL
                MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.
             800 SCUDDERS MILL ROAD, PLAINSBORO, NEW JERSEY 08536
       MAILING ADDRESS: P.O. BOX 9011, PRINCETON, NEW JERSEY 08543-9011
                    (NAME AND ADDRESS OF AGENT FOR SERVICE)
 
                                --------------
 
                                  COPIES TO:
   ALICE A. PELLEGRINO, ESQ.                   FRANK P. BRUNO, ESQ.
  FUND ASSET MANAGEMENT, L.P.                    BROWN & WOOD LLP
         P.O. BOX 9011                        ONE WORLD TRADE CENTER
  PRINCETON, NEW JERSEY 08543-             NEW YORK, NEW YORK 10048-0557
              9011
 
                                --------------
 
  APPROXIMATE DATE OF PROPOSED PUBLIC OFFERING: As soon as practicable after
the effective date of this Registration Statement.
 
                                --------------
  If any of the securities being registered on this form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, as amended (the "Securities Act"), other than securities offered only in
connection with dividend or interest reinvestment plans, check the following
box. [_]
  If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following
box and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [_]
  If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]
  If delivery of the prospectus is expected to be made pursuant to Rule 434
under the Securities Act, please check the following box. [X]
                                --------------
 
       CALCULATION OF REGISTRATION FEE UNDER THE SECURITIES ACT OF 1933
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<TABLE>
<CAPTION>
                                                        PROPOSED
                                           PROPOSED     MAXIMUM
        TITLE OF             AMOUNT        MAXIMUM     AGGREGATE   AMOUNT OF
    SECURITIES BEING          BEING     OFFERING PRICE  OFFERING  REGISTRATION
       REGISTERED         REGISTERED(1)  PER UNIT(1)    PRICE(1)     FEE(2)
- ------------------------------------------------------------------------------
<S>                       <C>           <C>            <C>        <C>
Auction Market Preferred
 Stock..................    40 shares      $25,000     $1,000,000     $295
</TABLE>
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
(1) Estimated solely for the purpose of calculating the filing fee.
(2) Transmitted to the designated lockbox at Mellon Bank in Pittsburgh, PA.
 
  THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS
REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH
SECTION 8(A) OF THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT
SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID
SECTION 8(A), MAY DETERMINE.
 
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- -------------------------------------------------------------------------------
<PAGE>
 
                MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.
 
                             CROSS REFERENCE SHEET
 
<TABLE>
<CAPTION>
          ITEM NUMBER, FORM N-2                   CAPTION IN PROSPECTUS
          ---------------------                   ---------------------
 <C> <S>                                  <C>
 Part A--INFORMATION REQUIRED IN A
  PROSPECTUS
  1. Outside Front Cover Page..........   Outside Front Cover Page
  2. Inside Front and Outside Back        
      Cover Pages......................   Inside Front and Outside Back Cover
                                           Pages; Underwriting               
  3. Fee Table and Synopsis............   Not Applicable
  4. Financial Highlights..............   Not Applicable
  5. Plan of Distribution..............   Underwriting
  6. Selling Shareholders..............   Not Applicable
  7. Use of Proceeds...................   Use of Proceeds
  8. General Description of the           
      Registrant.......................   Prospectus Summary; The Fund;     
                                           Investment Objective and Policies 
  9. Management........................   Directors and Officers; Investment
                                           Advisory and Management Arrangements
 10. Capital Stock, Long-Term Debt and    
      Other Securities.................   Description of AMPS; Description of
                                           Capital Stock                      
 11. Defaults and Arrears on Senior
      Securities.......................   Not Applicable
 12. Legal Proceedings.................   Not Applicable
 13. Table of Contents of the Statement
      of Additional Information........   Not Applicable
 Part B--INFORMATION REQUIRED IN A STATEMENT OF ADDITIONAL INFORMATION
 14. Cover Page........................   Not Applicable
 15. Table of Contents.................   Not Applicable
 16. General Information and History...   Not Applicable
 17. Investment Objective and             
      Policies.........................   Prospectus Summary; Investment  
                                           Objective and Policies; Other  
                                           Investment Policies; Investment
                                           Restrictions
 18. Management........................   Directors and Officers; Investment
                                           Advisory and Management Arrangements
 19. Control Persons and Principal        
      Holders of Securities............   Investment Advisory and Management    
                                           Arrangements    
 20. Investment Advisory and Other        
      Services.........................   Investment Advisory and Management
                                           Arrangements; Custodian;         
                                           Underwriting; Transfer Agent,    
                                           Dividend Disbursing Agent and    
                                           Registrar; Experts                
 21. Brokerage Allocation and Other
      Practices........................   Portfolio Transactions
 22. Tax Status........................   Taxes
 23. Financial Statements..............   Report of Independent Auditors;
                                           Statement of Assets, Liabilities and
                                           Capital; Financial Statements
 Part C--OTHER INFORMATION
</TABLE>
 
Information required to be included in Part C is set forth under the
appropriate Item, so numbered, in Part C to this Registration Statement.
 
                                       i
<PAGE>
 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A         +
+REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE   +
+SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY  +
+OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT        +
+BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR   +
+THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE      +
+SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE    +
+UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF  +
+ANY SUCH STATE.                                                               +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                             SUBJECT TO COMPLETION
                PRELIMINARY PROSPECTUS DATED SEPTEMBER 18, 1998
 
PROSPECTUS
 
                                  $
                 MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.
                   AUCTION MARKET PREFERRED STOCK ["AMPS(R)"]
                                  SHARES, SERIES A
                                  SHARES, SERIES B
                    LIQUIDATION PREFERENCE $25,000 PER SHARE
 
                                  -----------
 
  MuniHoldings California Insured Fund III, Inc. (the "Fund") is a recently
organized, non-diversified, closed-end management investment company that seeks
to provide shareholders with current income exempt from Federal and California
income taxes. The Fund seeks to achieve its investment objective by investing
primarily in a portfolio of long-term, investment grade municipal obligations
the interest on which, in the opinion of bond counsel to the issuer, is exempt
from Federal and California income taxes. The Fund intends to invest in
municipal obligations that are rated investment grade or, if unrated, are
considered by Fund Asset Management, L.P. (the "Investment Adviser") to be of
comparable quality. Under normal circumstances, at least 80% of the Fund's
assets will be invested in municipal obligations with remaining maturities of
one year or more that are covered by insurance guaranteeing the timely payment
of principal at maturity and interest. Investors are advised to read this
Prospectus carefully and retain it for future reference.
                                                        (Continued on next page)
                                  -----------
 
  The Broker-Dealers (as defined herein) intend to maintain a secondary trading
market in the AMPS outside of Auctions; however, they have no obligation to do
so, and there can be no assurance that a secondary market for the AMPS will
develop or, if it does develop, that it will provide holders with a liquid
trading market (i.e., trading will depend on the presence of willing buyers and
sellers and the trading price is subject to variables to be determined at the
time of the trade by the Broker-Dealers). The AMPS will not be registered on
any stock exchange or on any automated quotation system. An increase in the
level of interest rates, particularly during any Long Term Dividend Period,
likely will have an adverse effect on the secondary market price of the AMPS,
and a selling shareholder may sell AMPS between Auctions at a price per share
of less than $25,000.
 
                                  -----------
 
 THESE SECURITIES HAVE NOT BEEN APPROVED  OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE COMMISSION,  NOR HAS  THE COMMISSION PASSED  UPON THE  ACCURACY OR
   ADEQUACY  OF THIS  PROSPECTUS. ANY  REPRESENTATION TO THE  CONTRARY IS  A
     CRIMINAL OFFENSE.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                          PRICE TO                   PROCEEDS TO
                                           PUBLIC   SALES LOAD(1)(2)   FUND(3)
- --------------------------------------------------------------------------------
<S>                                       <C>       <C>              <C>
Per Share...............................   $25,000        $              $
- --------------------------------------------------------------------------------
Total...................................  $             $             $
</TABLE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
(1) Plus accumulated dividends, if any, from the Date of Original Issue.
(2) The Fund and the Investment Adviser have agreed to indemnify the
    Underwriter against certain liabilities under the Securities Act of 1933,
    as amended. See "Underwriting."
(3) Offering expenses payable by the Fund, estimated at $      , will be
    reimbursed by the Underwriter. See "Underwriting."
 
                                  -----------
 
  The shares of AMPS are offered by the Underwriter, subject to prior sale,
when, as and if issued by the Fund and accepted by the Underwriter, subject to
approval of certain legal matters by counsel for the Underwriter and certain
other conditions. The Underwriter reserves the right to withdraw, cancel or
modify such offer and to reject orders in whole or in part. It is expected that
one certificate for each series of the AMPS will be delivered to the nominee of
The Depository Trust Company on or about October   , 1998.
- -----
(R)Registered trademark of Merrill Lynch & Co., Inc.
 
                                  -----------
                              MERRILL LYNCH & CO.
 
                                  -----------
 
                The date of this Prospectus is October   , 1998.
<PAGE>
 
(Continued from previous page)
 
  Dividends on the shares of Auction Market Preferred Stock(R) ("AMPS(R)"),
Series A ("Series A AMPS(R)") and Series B ("Series B AMPS(R)") of the Fund
offered hereby will be cumulative from the Date of Original Issue and payable
commencing on        , 1998 in the case of Series A AMPS and        , 1998 in
the case of Series B AMPS (each, as applicable, an "Initial Dividend Payment
Date") and, generally, on each succeeding      in the case of Series A AMPS
and each succeeding      in the case of Series B AMPS, subject to certain
exceptions.
 
  The cash dividend rate (the "Applicable Rate") on the shares of Series A
AMPS for the Initial Dividend Period ending        , 1998 will be  % per annum
and the cash dividend rate on the shares of Series B AMPS for the Initial
Dividend Period ending        , 1998 will be  % per annum. The Applicable Rate
on the shares of AMPS of each series for each Subsequent Dividend Period will
be determined pursuant to periodic auctions conducted in accordance with the
procedures described in Appendix D hereto (an "Auction"). Except as otherwise
provided herein, each Subsequent Dividend Period for each series of AMPS will
be a 7-Day Dividend Period; provided, however, that prior to any Auction, the
Fund may elect, subject to certain limitations described herein, with respect
to each series of AMPS, upon giving notice to holders thereof, a Special
Dividend Period. See "Description of AMPS--Dividends."
 
  The Applicable Rate on the shares of AMPS of each series for each Subsequent
Dividend Period will be reset on the basis of Bids, Hold Orders and Sell
Orders placed by Existing Holders and Potential Holders in the Auction
conducted on the Business Day next preceding the commencement of such Dividend
Period. The Applicable Rate that results from an Auction for any Dividend
Period will not be greater than the Maximum Applicable Rate (as defined
herein). See "Description of AMPS--The Auction--Orders by Beneficial Owners,
Potential Beneficial Owners, Existing Holders and Potential Holders."
 
  The Fund currently is required to allocate net capital gains and other
taxable income, if any, proportionately among shares of Common Stock and
shares of the two series of AMPS. The Fund will give notice of the amount of
any taxable income to be included in a dividend on shares of AMPS in the
related Auction, as described herein, or, in limited circumstances, include
such income in a dividend on shares of AMPS without giving advance notice
thereof if it increases the dividend by an additional amount to offset
substantially the tax effect thereof. The amount of taxable income allocable
to shares of AMPS will depend upon the amount of such income realized by the
Fund and other factors but generally is not expected to be significant. See
"Taxes."
 
  Each prospective purchaser should review carefully the detailed information
regarding the Auction Procedures which appears in this Prospectus, including
the Appendices, and should note that (i) an Order constitutes an irrevocable
commitment to hold, purchase or sell AMPS based upon the results of the
related Auction, (ii) the Auctions will be conducted through telephone
communications, (iii) settlement for purchases and sales will be on the
Business Day following the Auction and (iv) ownership of AMPS will be
maintained in book-entry form by or through the Securities Depository. Under
certain circumstances, holders of AMPS may be unable to sell their shares of
AMPS in an Auction and thus may lack liquidity of investment. Shares of AMPS
only may be transferred pursuant to a Bid or a Sell Order placed in an Auction
through a Broker-Dealer to the Auction Agent or in the secondary market, if
any.
 
  The shares of AMPS are redeemable, in whole or in part, at the option of the
Fund, on any Dividend Payment Date (except during the Initial Dividend Period
or a Non-Call Period) at the Optional Redemption Price per share and will be
subject to mandatory redemption on dates fixed by the Board of Directors,
under certain circumstances, at the Mandatory Redemption Price per share.
 
  If the Fund fails to pay on any Dividend Payment Date (or within the
applicable grace period) the full amount of any dividend or the redemption
price of shares of AMPS called for redemption, the Applicable Rate will not be
based on the results of an Auction but instead will be equal to the Non-
Payment Period Rate until such failure to pay is cured. See "Description of
AMPS--Dividends--Non-Payment Period; Late Charge."
 
                                       2
<PAGE>
 
                               PROSPECTUS SUMMARY
 
  The following summary is qualified in its entirety by reference to the more
detailed information included elsewhere in this Prospectus. Certain of the
capitalized terms used herein are defined in the Glossary that appears at the
end of this Prospectus.
 
THE FUND      MuniHoldings California Insured Fund III, Inc. (the "Fund") is a
              recently organized, non-diversified, closed-end management
              investment company. See "The Fund."
 
INVESTMENT    The investment objective of the Fund is to provide shareholders
OBJECTIVE     with current income exempt from Federal and California income
AND           taxes. The Fund will seek to achieve its investment objective by
POLICIES      investing primarily in a portfolio of long-term, investment grade
              Municipal obligations the interest on which, in the opinion of
              bond counsel to the issuer, is exempt from Federal and California
              income taxes ("California Municipal Bonds"). The Fund intends to
              invest in municipal obligations that are rated investment grade
              or, if unrated, are considered by the Investment Adviser to be of
              comparable quality. The Fund will seek to achieve its investment
              objective by seeking to invest substantially all (a minimum of
              80%) of its assets in California Municipal Bonds, except at times
              when, in the judgment of the Investment Adviser, California
              Municipal Bonds of sufficient quality and quantity are
              unavailable for investment at suitable prices by the Fund. At all
              times, except during interim periods pending investment of the
              net proceeds of public offerings of the Fund's securities and
              during temporary defensive periods, the Fund will maintain at
              least 65% of its assets in California Municipal Bonds and at
              least 80% of its assets in California Municipal Bonds and other
              long-term municipal obligations exempt from Federal income taxes,
              but not from California income taxes ("Municipal Bonds"). Under
              normal circumstances, at least 80% of the Fund's assets will be
              invested in municipal obligations with remaining maturities of
              one year or more that are covered by insurance guaranteeing the
              timely payment of principal at maturity and interest. The Fund
              does not ordinarily intend to realize significant investment
              income not exempt from Federal and California income taxes. See
              "Investment Objective and Policies."
 
INVESTMENT    Fund Asset Management, L.P. is the Fund's investment adviser (the
ADVISER       "Investment Adviser") and is responsible for the management of
              the Fund's investment portfolio and for providing administrative
              services to the Fund. For its services, the Fund pays the
              Investment Adviser a monthly fee at the annual rate of 0.55 of 1%
              of the Fund's average weekly net assets, including proceeds from
              the sale of Preferred Stock. The Investment Adviser is an
              affiliate of Merrill Lynch Asset Management, L.P. ("MLAM"), which
              is owned and controlled by Merrill Lynch & Co., Inc. ("ML &
              Co."). The Asset Management Group of ML & Co. (which includes the
              Investment Adviser) acts as the investment adviser for over 100
              other registered management investment companies and offers
              portfolio management and portfolio analysis services to
              individuals and institutional accounts. As of August 1998, the
              Asset Management Group had a total of approximately $473 billion
              in investment company and other portfolio assets under management
              (approximately $38 billion of which was invested in municipal
              securities). This amount includes assets managed for certain
              affiliates of the Investment Adviser. See "Investment Advisory
              and Management Arrangements."
 
THE           The Fund is offering an aggregate of       shares of Series A
OFFERING      AMPS and      shares of Series B AMPS, each at a purchase price
              of $25,000 per share plus accumulated dividends, if any, from the
              Date of Original Issue. The shares of AMPS are being offered by
              Merrill Lynch, Pierce, Fenner & Smith Incorporated ("Merrill
              Lynch" or the "Underwriter"). See "Underwriting."
 
                                       3
<PAGE>
 
 
              The AMPS of each series will be shares of Preferred Stock of the
              Fund that entitle their holders to receive cash dividends at a
              rate per annum that may vary for the successive Dividend Periods
              for each such series. In general, except as described below, each
              Dividend Period for each series of AMPS subsequent to the Initial
              Dividend Period will be seven days in length. The Applicable Rate
              for a particular Dividend Period will be determined by an Auction
              conducted on the Business Day next preceding the start of such
              Dividend Period.
 
              Through their Broker-Dealers, Beneficial Owners and Potential
              Beneficial Owners of shares of AMPS of each series may
              participate in Auctions therefor, although, except in the case of
              a Special Dividend Period, Beneficial Owners desiring to continue
              to hold all of their shares of AMPS regardless of the Applicable
              Rate resulting from Auctions need not participate. For an
              explanation of Auctions and the method of determining the
              Applicable Rate, see "Description of AMPS--The Auction."
 
              Except as described herein, investors in AMPS will not receive
              certificates representing ownership of their shares. Ownership of
              AMPS will be maintained in book-entry form by the Securities
              Depository or its nominee for the account of the investor's Agent
              Member. The investor's Agent Member, in turn, will maintain
              records of such investor's beneficial ownership of AMPS.
              Accordingly, references herein to an investor's investment in or
              purchase, sale or ownership of AMPS are to purchases, sales or
              ownership of those shares by Beneficial Owners.
 
DIVIDENDS     After the Initial Dividend Period, each Subsequent Dividend
AND           Period for each series of AMPS will generally consist of seven
DIVIDEND      days (a "7-Day Dividend Period"); provided, however, that prior
PERIODS       to any Auction, the Fund may elect, subject to certain
              limitations described herein, with respect to each series of
              AMPS, upon giving notice to holders thereof, a Special Dividend
              Period. A Special Dividend Period is a Dividend Period consisting
              of a specified number of days (other than seven), evenly
              divisible by seven and not fewer than seven nor more than 364 (a
              "Short Term Dividend Period") or a Dividend Period consisting of
              a specified period of one whole year or more but not greater than
              five years (a "Long Term Dividend Period"). Dividends on the AMPS
              offered hereby are cumulative from the Date of Original Issue and
              are payable when, as and if declared by the Board of Directors of
              the Fund, out of funds legally available therefor, commencing on
              the Initial Dividend Payment Date and, in the case of Dividend
              Periods that are not Special Dividend Periods, dividends will be
              payable generally on each succeeding      in the case of Series A
              AMPS and each succeeding      in the case of the Series B AMPS,
              subject to certain exceptions.
 
              Dividends for each series of AMPS will be paid through the
              Securities Depository (The Depository Trust Company or a
              successor securities depository) on each Dividend Payment Date
              for such series. The Securities Depository's normal procedures
              provide for it to distribute dividends in same-day funds to Agent
              Members, who are in turn expected to distribute such dividends to
              the person for whom they are acting as agent in accordance with
              the instructions of such person. See "Description of AMPS--
              Dividends."
 
              For each Subsequent Dividend Period, the cash dividend rate on
              the shares of each series of AMPS will be the Applicable Rate for
              such series that the Auction Agent (IBJ Schroder Bank & Trust
              Company or any successor) advises the Fund has resulted from an
              Auction relating to such series. See "Description of AMPS--
              Dividends." The first Auction for each series of AMPS is
              scheduled to be held on the ending date for the Initial Dividend
              Period for such series of AMPS as set forth above.
 
 
                                       4
<PAGE>
 
              The Articles Supplementary provide that until the Fund gives a
              Request for Special Dividend Period and the related Notice of
              Special Dividend Period with respect to a series of AMPS, only 7-
              Day Dividend Periods will be applicable to each series of AMPS.
              While the Fund does not currently intend to give a Request for
              Special Dividend Period with respect to the AMPS, it may so elect
              in the future subject to, and on, the conditions discussed under
              "Description of the AMPS--Dividends--Notification of Dividend
              Period."
 
              A Special Dividend Period will not be effective for a series of
              the AMPS unless Sufficient Clearing Bids exist at the Auction in
              respect of such Special Dividend Period. If Sufficient Clearing
              Bids do not exist at such Auction for a series of the AMPS, the
              Dividend Period commencing on the Business Day succeeding such
              Auction will be a 7-Day Dividend Period, and the holders of the
              AMPS of such series outstanding prior to such Auction will be
              required to continue to hold such shares for such Dividend
              Period. In addition, the Fund may not give a Notice of Special
              Dividend Period with respect to a series of AMPS, or if the Fund
              has given a Notice of Special Dividend Period for a series of
              AMPS, the Fund will be required to give a Notice of Revocation in
              respect thereof if (i) either the 1940 Act AMPS Asset Coverage is
              not satisfied or the Fund fails to maintain S&P Eligible Assets
              and Moody's Eligible Assets each with an aggregate Discounted
              Value at least equal to the AMPS Basic Maintenance Amount, in
              each case on each of the two Valuation Dates immediately
              preceding the Business Day prior to the related Auction Date for
              the AMPS, (ii) sufficient funds for the payment of dividends
              payable on the immediately succeeding Dividend Payment Date have
              not been irrevocably deposited with the Auction Agent by the
              close of business on the third Business Day preceding the related
              Auction Date, or (iii) the Broker-Dealers have given the Fund
              notice that it is not advisable to hold an Auction in respect of
              a Special Dividend Period. In such event, the next succeeding
              Dividend Period will be a 7-Day Dividend Period.
 
ADVANCE       Dividends paid by the Fund, to the extent paid from tax-exempt
NOTICE OF     income earned on municipal obligations, will be exempt from
ALLOCATION    Federal and California income taxes, subject to the possible
OF TAXABLE    application of the alternative minimum tax. However, the Fund is
INCOME;       required to allocate net capital gains (including new categories
INCLUSION     of capital gains, as discussed under "Taxes") and other income
OF TAXABLE    subject to regular Federal income taxes, if any, proportionately
INCOME IN     among shares of Common Stock and shares of the two Series of AMPS
DIVIDENDS     in accordance with the current position of the Internal Revenue
              Service described herein. The Fund will notify the Auction Agent
              of the amount of any net capital gains (including new categories
              of capital gains, as discussed under "Taxes") or other taxable
              income to be included in any dividend on shares of AMPS prior to
              the Auction establishing the Applicable Rate for such dividend.
              The Auction Agent in turn will notify each Broker-Dealer whenever
              it receives any such notice from the Fund, and each Broker-Dealer
              will notify its Beneficial Owners and Potential Beneficial
              Owners, as provided in its Broker-Dealer Agreement. In limited
              circumstances, the Fund also may include such income in a
              dividend on shares of AMPS without giving advance notice thereof
              if it increases the dividend by an additional amount to offset
              the tax effect thereof. The amount of taxable income allocable to
              shares of AMPS will depend upon the amount of such income
              realized by the Fund and other factors, but generally is not
              expected to be significant. See "Taxes" and "Description of
              AMPS--The Auction--Auction Date; Advance Notice of Allocation of
              Taxable Income; Inclusion of Taxable Income in Dividends."
 
ADDITIONAL    If the Fund retroactively allocates any net capital gains
DIVIDENDS     (including new categories of capital gains, as discussed under
              "Taxes") or other income subject to regular Federal income taxes
              to shares of AMPS without having given advance notice thereof as
              described above, which
 
                                       5
<PAGE>
 
              may only happen when such allocation is made as a result of the
              redemption of all or a portion of the outstanding shares of AMPS
              or the liquidation of the Fund, the Fund will make certain
              payments to holders of shares of AMPS to which such allocation
              was made to offset substantially the tax effect thereof. In no
              other instances will the Fund be required to make payments to
              holders of shares of AMPS to offset the tax effect of any
              reallocation of net capital gains or other taxable income. See
              "Description of AMPS--Dividends--Additional Dividends" and
              "Taxes."
 
DETERMINATION Except during a Non-Payment Period, the Applicable Rate for any
OF MAXIMUM    Dividend Period for shares of AMPS of each series will not be
APPLICABLE    more than the Maximum Applicable Rate applicable to such shares.
RATES         The Maximum Applicable Rate for shares of AMPS will depend on the
              credit rating assigned to such shares and on the duration of the
              Dividend Period. The Maximum Applicable Rate will be the
              Applicable Percentage of the Reference Rate. The Reference Rate
              is (i) with respect to any Dividend Period or any Short Term
              Dividend Period having 28 or fewer days, the higher of the
              applicable "AA" Composite Commercial Paper Rate and the Taxable
              Equivalent of the Short-Term Municipal Bond Rate, (ii) with
              respect to any Short Term Dividend Period having more than 28 but
              fewer than 183 days, the applicable "AA" Composite Commercial
              Paper Rate, (iii) with respect to any Short Term Dividend Period
              having 183 or more but fewer than 364 days, the applicable U.S.
              Treasury Bill Rate and (iv) with respect to any Long Term
              Dividend Period, the applicable U.S. Treasury Note Rate. The
              Applicable Percentage will be determined based on (i) the lower
              of the credit rating or ratings assigned on such date to the AMPS
              by Moody's Investors Service, Inc. ("Moody's") and Standard &
              Poor's, a division of The McGraw-Hill Companies, Inc. ("S&P")
              (or, if Moody's or S&P or both shall not make such rating
              available, the equivalent of either or both of such ratings by a
              Substitute Rating Agency or two Substitute Rating Agencies or, in
              the event that only one such rating shall be available, such
              rating) and (ii) whether the Fund has provided notification to
              the Auction Agent prior to the Auction establishing the
              Applicable Rate for any dividend that net capital gains or other
              taxable income will be included in such dividend on shares of
              AMPS as follows:
 
<TABLE>
<CAPTION>
                                                   APPLICABLE        APPLICABLE
                         CREDIT RATINGS            PERCENTAGE        PERCENTAGE
                 ------------------------------ OF REFERENCE RATE OF REFERENCE RATE
                     MOODY'S           S&P      --NO NOTIFICATION  --NOTIFICATION
                 ---------------- ------------- ----------------- -----------------
           <S>   <C>              <C>           <C>               <C>
                 "aa3" or higher  AA- or higher        110%              150%
                   "a3" to "a1"     A- to A+           125%              160%
                 "baa3" to "baa1" BBB- to BBB+         150%              250%
                   Below "baa3"    Below BBB-          200%              275%
</TABLE>
 
              There is no minimum Applicable Rate in respect of any Dividend
              Period.
 
              The Applicable Rate for any Dividend Period commencing during any
              Non-Payment Period, and the rate used to calculate the late
              charge described under "Description of AMPS--Dividends--Non-
              Payment Period; Late Charge," initially will be 200% of the
              Reference Rate (or 275% of such rate if the Fund has provided
              notification to the Auction Agent prior to the Auction
              establishing the Applicable Rate for any dividend that net
              capital gains or other taxable income will be included in such
              dividend on shares of AMPS).
 
AUCTION       Separate Auctions will be conducted for each series of AMPS. As
PROCEDURES    used in the following description of the Auction Procedures,
              unless the context otherwise requires, "AMPS" means the series of
              AMPS subject to the related Auction, and "Beneficial Owners,"
              "Potential Beneficial Owners," "Existing Holders" and "Potential
              Holders" means Beneficial Owners of such series, Potential
              Beneficial Owners of such series, Existing Holders of such series
              and Potential Holders of such series, respectively.
 
                                       6
<PAGE>
 
 
              Unless otherwise permitted by the Fund, Beneficial Owners and
              Potential Beneficial Owners of AMPS may only participate in
              Auctions through their Broker-Dealers. Broker-Dealers will submit
              the Orders of their respective customers who are Beneficial
              Owners and Potential Beneficial Owners to the Auction Agent,
              designating themselves as Existing Holders in respect of shares
              subject to Orders submitted or deemed submitted to them by
              Beneficial Owners and as Potential Holders in respect of shares
              subject to Orders submitted to them by Potential Beneficial
              Owners. On or prior to each Auction Date for each series of AMPS
              (the Business Day next preceding the first day of each Dividend
              Period), each Beneficial Owner may submit Orders to its Broker-
              Dealer as follows:
 
              -- Hold Order--indicating its desire to hold shares of AMPS
                 without regard to the Applicable Rate for the next Dividend
                 Period for such shares.
 
              -- Bid--indicating its desire to hold shares of AMPS, provided
                 that the Applicable Rate for the next Dividend Period for such
                 shares is not less than the rate per annum specified in such
                 Bid.
 
              -- Sell Order--indicating its desire to sell shares of AMPS
                 without regard to the Applicable Rate for the next Dividend
                 Period for such shares.
 
              A Beneficial Owner may submit different types of Orders to its
              Broker-Dealer with respect to shares of AMPS then held by such
              Beneficial Owner, provided that the total number of shares of
              AMPS covered by such Orders does not exceed the number of shares
              of AMPS held by such Beneficial Owner. If, however, a Beneficial
              Owner offers through its Broker-Dealer to purchase additional
              shares of AMPS in such Auction, such Beneficial Owner, for
              purposes of such offer to purchase additional shares, will be
              treated as a Potential Beneficial Owner as described below. Bids
              by Beneficial Owners through their Broker-Dealers with rates per
              annum higher than the Maximum Applicable Rate will be treated as
              Sell Orders. A Hold Order (in the case of an Auction relating to
              a Dividend Period which is not a Special Dividend Period) and a
              Sell Order (in the case of an Auction relating to a Special
              Dividend Period) shall be deemed to have been submitted on behalf
              of a Beneficial Owner if an Order with respect to shares of AMPS
              then held by such Beneficial Owner is not submitted on behalf of
              such Beneficial Owner for any reason, including the failure of a
              Broker-Dealer to submit such Beneficial Owner's Order to the
              Auction Agent.
 
              Potential Beneficial Owners of shares of AMPS may submit Bids
              through their Broker-Dealers in which they offer to purchase
              shares of AMPS, provided that the Applicable Rate for the next
              Dividend Period for such shares is not less than the rate per
              annum specified in such Bid. A Bid by a Potential Beneficial
              Owner with a rate per annum higher than the Maximum Applicable
              Rate will not be considered.
 
              Neither the Fund nor the Auction Agent will be responsible for a
              Broker-Dealer's failure to comply with any of the foregoing.
 
              A Broker-Dealer also may hold AMPS for its own account as a
              Beneficial Owner. A Broker-Dealer thus may submit Orders to the
              Auction Agent as a Beneficial Owner or a Potential Beneficial
              Owner and therefore participate in an Auction as an Existing
              Holder or Potential Holder on behalf of both itself and its
              customers. An Order placed with the Auction Agent by a Broker-
              Dealer as an Existing Holder or a Potential Holder as or on
              behalf of a
 
                                       7
<PAGE>
 
              Beneficial Owner or a Potential Beneficial Owner, as the case may
              be, will be treated in the same manner as an Order placed with a
              Broker-Dealer by a Beneficial Owner or a Potential Beneficial
              Owner. Similarly, any failure by a Broker-Dealer to submit to the
              Auction Agent an Order in respect of any AMPS held by it or its
              customers who are Beneficial Owners will be treated in the same
              manner as a Beneficial Owner's failure to submit to its Broker-
              Dealer an Order in respect of AMPS held by it, as described
              above. Inasmuch as a Broker-Dealer participates in an Auction as
              an Existing Holder or a Potential Holder only to represent the
              interests of a Beneficial Owner or Potential Beneficial Owner,
              whether it be a customer or itself, all discussion herein
              relating to the consequences of an Auction for Existing Holders
              and Potential Holders also applies to the underlying beneficial
              ownership interests represented thereby.
 
              If Sufficient Clearing Bids exist in an Auction (that is, in
              general, the number of shares of AMPS subject to Bids by
              Potential Holders with rates equal to or lower than the Maximum
              Applicable Rate is at least equal to the number of shares of AMPS
              subject to Sell Orders by Existing Holders), the Applicable Rate
              will be the lowest rate per annum specified in the Submitted Bids
              which, taking into account such rate per annum and all lower
              rates per annum bid by Existing Holders and Potential Holders,
              would result in Existing Holders and Potential Holders owning all
              of the shares of AMPS available for purchase in the Auction. If
              Sufficient Clearing Bids do not exist, the Dividend Period next
              following the Auction automatically will be a 7-Day Dividend
              Period and the Applicable Rate will be the Maximum Applicable
              Rate, and in such event, Existing Holders that have submitted
              Sell Orders will not be able to sell in the Auction all, and may
              not be able to sell any, shares of AMPS subject to such Sell
              Orders. Thus, under certain circumstances, Existing Holders and,
              thus, the Beneficial Owners they represent may not have liquidity
              of investment. If all Existing Holders submit (or are deemed to
              have submitted) Hold Orders in an Auction, the Dividend Period
              next following the Auction automatically shall be the same length
              as the immediately preceding Dividend Period, and the Applicable
              Rate will be 40% of the Reference Rate (as defined under
              "Determination of Maximum Applicable Rates" above) in effect on
              the date of the Auction (or 60% of such rate if the Fund has
              provided notification to the Auction Agent prior to the Auction
              establishing the Applicable Rate for any dividend that net
              capital gains or other taxable income will be included in such
              dividend on shares of AMPS).
 
              The Auction Procedures include a pro rata allocation of shares
              for purchase and sale, which may result in an Existing Holder
              selling or holding, or a Potential Holder purchasing, a number of
              shares of AMPS that is less than the number of shares of AMPS
              specified in its Order. To the extent the allocation has this
              result, a Broker-Dealer will be required to make appropriate pro
              rata allocations among its customers and itself.
 
              A Sell Order by an Existing Holder will constitute an irrevocable
              offer to sell the shares of AMPS subject thereto, and a Bid
              placed by an Existing Holder also will constitute an irrevocable
              offer to sell the shares of AMPS subject thereto if the rate per
              annum specified in the Bid is higher than the Applicable Rate
              determined in the Auction, in each case at a price per share
              equal to $25,000. A Bid placed by a Potential Holder will
              constitute an irrevocable offer to purchase the shares of AMPS
              subject thereto if the rate per annum specified in such Bid is
              less than or equal to the Applicable Rate determined in the
              Auction. Settlement of purchases and sales will be made on the
              next Business Day (also a Dividend Payment Date) after the
              Auction Date through the Securities Depository. Purchasers will
              make payment through their Agent Members in same-day funds to the
              Securities Depository
 
                                       8
<PAGE>
 
              against delivery by book-entry to their Agent Members. The
              Securities Depository will make payment to the sellers' Agent
              Members in accordance with the Securities Depository's normal
              procedures, which now provide for payment in same-day funds. See
              "Description of AMPS--The Auction."
 
ASSET         Under the Articles Supplementary, the Fund must maintain (i) S&P
MAINTENANCE   Eligible Assets and Moody's Eligible Assets each having in the
              aggregate a Discounted Value at least equal to the AMPS Basic
              Maintenance Amount and (ii) 1940 Act AMPS Asset Coverage of at
              least 200%. See "Description of AMPS--Asset Maintenance."
 
              The Fund estimates that, based on the composition of its
              portfolio at September  , 1998, 1940 Act AMPS Asset Coverage with
              respect to shares of AMPS would be approximately    % immediately
              after the issuance of the shares of AMPS offered hereby in an
              amount representing approximately   % of the Fund's capital.
 
              The Discount Factors and guidelines for calculating the
              Discounted Value of the Fund's portfolio for purposes of
              determining whether the AMPS Basic Maintenance Amount has been
              satisfied have been established by Moody's and S&P in connection
              with the Fund's receipt of ratings on the shares of AMPS on their
              Date of Original Issue of "aaa" from Moody's and AAA from S&P.
              See "Investment Objective and Policies--Rating Agency
              Guidelines."
 
MANDATORY     If the AMPS Basic Maintenance Amount or the 1940 Act AMPS Asset
REDEMPTION    Coverage is not maintained or restored as specified herein,
              shares of AMPS will be subject to mandatory redemption, out of
              funds legally available therefor, at the Mandatory Redemption
              Price of $25,000 per share plus an amount equal to dividends
              thereon (whether or not earned or declared) accumulated but
              unpaid to the date fixed for redemption. In addition, holders of
              AMPS may be entitled to receive Additional Dividends in the event
              of redemption of such AMPS to the extent provided herein. See
              "Description of AMPS--Dividends--Additional Dividends." Any such
              redemption will be limited to the minimum number of shares of
              AMPS necessary to restore the AMPS Basic Maintenance Amount or
              the 1940 Act AMPS Asset Coverage, as the case may be. The Fund's
              ability to make such a mandatory redemption may be restricted by
              the provisions of the Investment Company Act of 1940, as amended
              (the "1940 Act"). See "Description of AMPS--Redemption--Mandatory
              Redemption."
 
OPTIONAL      The shares of AMPS of each series are redeemable at the option of
REDEMPTION    the Fund, as a whole or in part, on any Dividend Payment Date
              (except during the Initial Dividend Period or a Non-Call Period)
              at the Optional Redemption Price of $25,000 per share, plus an
              amount equal to dividends thereon (whether or not earned or
              declared) accumulated but unpaid to the date fixed for redemption
              plus the premium, if any, resulting from the designation of a
              Premium Call Period. See "Description of AMPS--Redemption--
              Optional Redemption." In addition, holders of shares of AMPS may
              be entitled to receive Additional Dividends in the event of
              redemption of such shares of AMPS to the extent provided herein.
              See "Description of AMPS--Dividends--Additional Dividends."
 
LIQUIDATION   The liquidation preference of each share of AMPS will be $25,000,
PREFERENCE    plus an amount equal to accumulated but unpaid dividends (whether
              or not earned or declared). See "Description of AMPS--Liquidation
              Rights." In addition, holders of AMPS may be entitled to receive
              Additional Dividends in the event of the liquidation of the Fund
              as provided herein. See "Description of AMPS--Dividends--
              Additional Dividends."
 
                                       9
<PAGE>
 
 
RATINGS       It is a condition to their issuance that the AMPS be issued with
              a rating of "aaa" from Moody's and AAA from S&P. See "Investment
              Objective and Policies--Rating Agency Guidelines."
 
VOTING        The 1940 Act requires that the holders of AMPS and any other
RIGHTS        Preferred Stock, voting as a separate class, have the right to
              elect at least two directors at all times and to elect a majority
              of the directors at any time when two years' dividends on the
              AMPS or any other Preferred Stock are unpaid. The holders of AMPS
              and any other Preferred Stock will vote as a separate class on
              certain other matters as required under the Fund's Charter and
              the 1940 Act. See "Description of AMPS--Voting Rights" and
              "Description of Capital Stock--Certain Provisions of the
              Charter."
 
                                       10
<PAGE>
 
                    RISK FACTORS AND SPECIAL CONSIDERATIONS
 
  The Fund intends to invest a substantial portion of its assets in California
Municipal Bonds and, therefore, it is more susceptible to factors adversely
affecting issuers of California Municipal Bonds than is a municipal bond fund
that is not concentrated in issuers of California Municipal Bonds to this
degree. See "Investment Objective and Policies--Special Considerations Relating
to California Municipal Bonds" and Appendix A, "Economic and Other Conditions
in California."
 
  The Fund has registered as a "non-diversified" investment company so that it
will be able to invest more than 5% of its total assets in the obligations of
any single issuer, subject to the diversification requirements of Subchapter M
of the Internal Revenue Code of 1986, as amended (the "Code"), applicable to
the Fund. Since the Fund may invest a relatively high percentage of its assets
in the obligations of a limited number of issuers, the Fund may be more
susceptible than a more widely diversified fund to any single economic,
political or regulatory occurrence.
 
  The Fund intends to invest in municipal obligations that are rated in the
investment-grade rating categories by S&P, Moody's or Fitch IBCA, Inc.
("Fitch") or, if not rated, are considered to be of comparable quality by the
Investment Adviser. Obligations rated in the lowest investment-grade category
have certain speculative characteristics. See "Investment Objective and
Policies." The Fund may invest in certain tax-exempt securities classified as
"private activity bonds" that may subject certain investors in the Fund to the
alternative minimum tax. See "Taxes--General."
 
  The Fund will be subject to certain restrictions on investments imposed by
guidelines of the insurance companies issuing the portfolio insurance. It is
not anticipated that these guidelines will impede the Investment Adviser from
managing the Fund's portfolio in accordance with the Fund's investment
objective and policies.
 
  In order to seek to hedge various portfolio positions or to enhance its
return, the Fund may invest in certain instruments that may be characterized as
derivatives. These investments include various types of options transactions
and futures and options thereon. Such investments also may consist of non-
municipal tax-exempt securities and securities the potential investment return
on which is based on the change in particular measurements of value or interest
rates ("indexed securities"), including securities the potential investment
return on which is inversely related to a change in particular measurements of
value or interest rates ("inverse securities"). Certain of such investments may
be made solely for hedging purposes, not for speculation, and may in some cases
require limitations as to the type of permissible counterparty to the
transaction. Investments in indexed securities, including inverse securities,
subject the Fund to the risks associated with changes in the particular
indices, which may include reduced or eliminated interest payments and losses
of invested principal. Derivative instruments may have certain characteristics
that have a similar effect on the return to Common Stock investors as the
leveraging of the Fund's portfolio; however, certain derivative investments
will not be taken into account as senior securities (as defined in the 1940
Act) for purposes of calculating the percentage of leverage of the Fund's
portfolio. For a further discussion of the risks associated with derivative
investments, see "Investment Objective and Policies," "Investment Objective and
Policies--Other Investment Policies--Indexed and Inverse Floating Obligations,"
"--Call Rights" and "Investment Objective and Policies--Options and Futures
Transactions."
 
  Subject to its investment restrictions, the Fund is authorized to engage in
options and futures transactions on exchanges and in the over-the-counter
markets ("OTC options") for hedging purposes with certain specified entities
meeting the criteria of the Fund. These transactions involve certain risk
considerations. These risks include the risk of imperfect correlation in
movements in the price of futures contracts and movements in the price of the
security that is the subject of the hedge and the inability to close futures
transactions under certain conditions. Because of the anticipated leveraged
nature of the Common Stock, hedging transactions will result in a larger impact
on the net asset value of the Common Stock than would be the case if the Common
Stock were
 
                                       11
<PAGE>
 
not leveraged. Certain OTC options and assets used to cover OTC options written
by the Fund may be considered to be illiquid. The illiquidity of such options
or assets may prevent a successful sale of such options or assets, result in a
delay of sale, or reduce the amount of proceeds that might be otherwise
realized. See "Investment Objective and Policies--Options and Futures
Transactions."
 
  For so long as any shares of AMPS are rated by Moody's, the Fund will not buy
or sell financial futures contracts, write, purchase or sell call options on
financial futures contracts or purchase put options on financial futures
contracts or write call options (except covered call options) on portfolio
securities unless it receives written confirmation from Moody's that engaging
in such transactions would not impair the ratings then assigned to the shares
of AMPS by Moody's, except that the Fund may engage in Moody's Hedging
Transactions subject to the limitations described herein. For so long as any
shares of AMPS are rated by S&P, the Fund will not purchase or sell financial
futures contracts, write, purchase or sell options on financial futures
contracts or write put options (except covered put options) or call options
(except covered call options) on portfolio securities unless it receives
written confirmation from S&P that engaging in such transactions will not
impair the ratings then assigned to the shares of AMPS by S&P, except that the
Fund may engage in S&P Hedging Transactions subject to the limitations
described herein. See "Investment Objective and Policies--Rating Agency
Guidelines" and "--Options and Futures Transactions."
 
There are a number of specific factors investors in AMPS should consider.
 
  -- The credit ratings of the AMPS could be reduced while an investor holds
     the AMPS.
 
  -- Neither Broker-Dealers nor the Fund are obligated to purchase shares of
     AMPS in an Auction or otherwise nor is the Fund required to redeem
     shares of AMPS in the event of a failed Auction.
 
  -- If in an Auction for the AMPS Sufficient Clearing Bids do not exist, the
     Applicable Rate will be the Maximum Applicable Rate, and in such event,
     Beneficial Owners that have submitted Sell Orders will not be able to
     sell in the Auction all, and may not be able to sell any, shares of AMPS
     subject to such Sell Orders. Thus, under certain circumstances,
     Beneficial Owners may not have liquidity of investment.
 
  The Broker-Dealers intend to maintain a secondary trading market in the AMPS
outside of Auctions; however, they have no obligation to do so and there can be
no assurance that a secondary market for the AMPS will develop or, if it does
develop, that it will provide holders with a liquid trading market (i.e.,
trading will depend on the presence of willing buyers and sellers and the
trading price is subject to variables to be determined at the time of the trade
by the Broker-Dealers). The AMPS will not be registered on any stock exchange
or on any automated quotation system. An increase in the level of interest
rates, particularly during any Long Term Dividend Period, likely will have an
adverse effect on the secondary market price of the AMPS, and a selling
shareholder may sell AMPS between Auctions at a price per share of less than
$25,000.
 
  The Fund's Charter includes provisions that could have the effect of limiting
the ability of other entities or persons to acquire control of the Fund or to
change the composition of its Board of Directors and could have the effect of
depriving Common Stock shareholders of an opportunity to sell their shares at a
premium over prevailing market prices by discouraging a third party from
seeking to obtain control of the Fund. See "Description of Capital Stock--
Certain Provisions of the Charter."
 
                                       12
<PAGE>
 
                                   THE FUND
 
  MuniHoldings California Insured Fund III, Inc. (the "Fund") is a recently
organized, non-diversified, closed-end management investment company. The Fund
was incorporated under the laws of the State of Maryland on August 17, 1997,
and has registered under the 1940 Act. The Fund's principal office is located
at 800 Scudders Mill Road, Plainsboro, New Jersey 08536, and its telephone
number is (609) 282-2800.
 
  The Fund commenced operations on September  , 1998 upon the closing of an
initial public offering of      shares of its Common Stock. The proceeds of
such offering were approximately $      after the payment of organizational
and offering expenses. In connection with the initial public offering of the
Fund's Common Stock, the underwriter was granted an option to purchase up to
an additional      shares to cover over-allotments.
 
                                USE OF PROCEEDS
 
  The estimated net proceeds of this offering will be $     after the payment
of offering expenses (estimated to be $   ) and the sales load and the payment
to the Fund by the Underwriter to cover certain expenses. See "Underwriting."
 
  The net proceeds of the offering will be invested in accordance with the
Fund's investment objective and policies during a period estimated not to
exceed three months from the offer and sale of such shares of AMPS depending
on market conditions and the availability of appropriate securities. Pending
such investment, it is anticipated that the proceeds will be invested in
short-term tax-exempt securities. See "Investment Objective and Policies."
 
                                CAPITALIZATION
 
  The following table sets forth the unaudited capitalization of the Fund as
of September  , 1998 and as adjusted to give effect to the issuance of the
shares of AMPS offered hereby.
 
<TABLE>
<CAPTION>
                                                             ACTUAL AS ADJUSTED
                                                             ------ -----------
<S>                                                          <C>    <C>
Shareholders' equity:
Capital Stock (200,000,000 shares authorized)
  Preferred Stock, par value $.10 per share (no shares
   issued;    shares of AMPS issued and outstanding, as
   adjusted, at $25,000 per share liquidation preference)...   --      $
  Common Stock, par value $.10 per share (     shares issued
   and outstanding).........................................  $
  Capital in excess of par value attributable to Common
   Stock....................................................
  Undistributed investment income--net......................
  Unrealized appreciation on investments--net...............
                                                              ----     -----
  Net assets................................................  $        $
                                                              ====     =====
</TABLE>
 
                                      13
<PAGE>
 
                             PORTFOLIO COMPOSITION
 
  As of September   , 1998, approximately    % of the market value of the
Fund's portfolio was invested in long-term municipal obligations and
approximately    % of the market value of the Fund's portfolio was invested in
short-term municipal obligations. The following table sets forth certain
information with respect to the composition of the Fund's investment portfolio
as of September   , 1998.
 
<TABLE>
<CAPTION>
                                                NUMBER OF     VALUE
   S&P*                MOODY'S*                  ISSUES   (IN THOUSANDS) PERCENT
   ----                --------                 --------- -------------- -------
   <C>  <S>                                     <C>       <C>            <C>
                                                               $               %
                                                   ---         ----       -----
        Total................................                  $          100.0%
                                                   ===         ====       =====
</TABLE>
- --------
* Ratings: Using the higher of S&P's or Moody's ratings on the Fund's
  municipal obligations. See "Schedule of Investments." S&P rating categories
  may be modified further by a plus (+) or minus (-) in AA, A, BBB, BB, B and
  C ratings. Moody's rating categories may be modified further by a 1, 2 or 3
  in Aa, A, Baa, Ba and B ratings.
 
                       INVESTMENT OBJECTIVE AND POLICIES
 
  The investment objective of the Fund is to provide shareholders with current
income exempt from Federal and California income taxes. The Fund seeks to
achieve its investment objective by investing primarily in a portfolio of
long-term, investment grade municipal obligations issued by or on behalf of
the State of California, its political subdivisions, agencies and
instrumentalities and by other qualifying issuers that pay interest which, in
the opinion of bond counsel to the issuer, is exempt from Federal and
California income taxes. The Fund will seek to achieve its investment
objective by seeking to invest substantially all (a minimum of 80%) of its
assets in California Municipal Bonds, except at times when, in the judgment of
the Investment Adviser, California Municipal Bonds of sufficient quality and
quantity are unavailable for investment at suitable prices by the Fund. At all
times, except during interim periods pending investment of the net proceeds of
public offerings of the Fund's securities and during temporary defensive
periods, the Fund will maintain at least 65% of its assets in California
Municipal Bonds. Under normal circumstances, at least 80% of the Fund's assets
will be invested in municipal obligations with remaining maturities of one
year or more that are covered by insurance guaranteeing the timely payment of
principal at maturity and interest. The investment objective of the Fund is a
fundamental policy that may not be changed without a vote of a majority of the
Fund's outstanding voting securities, as defined below under "Investment
Restrictions." There can be no assurance that the investment objective of the
Fund will be realized. At times the Fund may seek to hedge its portfolio
through the use of futures transactions and options to reduce volatility in
the net asset value of its shares of Common Stock.
 
  The Fund ordinarily does not intend to realize significant investment income
not exempt from Federal and California income taxes. To the extent that
suitable California Municipal Bonds are not available for investment by the
Fund, as determined by the Investment Adviser, the Fund may purchase long-term
obligations issued by or on behalf of states, territories and possessions of
the United States and their political subdivisions, agencies and
instrumentalities paying interest which, in the opinion of bond counsel to the
issuer, is exempt from Federal but not California income taxes. At all times,
except during temporary defensive periods, the Fund will have at least 80% of
its assets invested in California Municipal Bonds and Municipal Bonds. The
Fund may invest all or a portion of its assets in certain tax-exempt
securities classified as "private activity bonds" (in general, bonds that
benefit non-governmental entities) that may subject certain investors in the
Fund to an alternative minimum tax.
 
  The Fund also may invest in securities not issued by or on behalf of a state
or territory or by an agency or instrumentality thereof, if the Fund
nevertheless believes such securities pay interest or distributions that are
 
                                      14
<PAGE>
 
exempt from Federal income taxation ("Non-Municipal Tax-Exempt Securities").
Non-Municipal Tax-Exempt Securities may include securities issued by other
investment companies that invest in California Municipal Bonds and Municipal
Bonds, to the extent such investments are permitted by the 1940 Act. Other
Non-Municipal Tax-Exempt Securities could include trust certificates or other
instruments evidencing interests in one or more long-term California Municipal
Bonds or Municipal Bonds. Certain Non-Municipal Tax-Exempt Securities may be
characterized as derivative instruments. Non-Municipal Tax-Exempt Securities
will be considered "California Municipal Bonds" or "Municipal Bonds" for
purposes of the Fund's investment objective and policies.
 
  The investment grade California Municipal Bonds and Municipal Bonds in which
the Fund will primarily invest are those California Municipal Bonds and
Municipal Bonds that are rated at the date of purchase in the four highest
rating categories of S&P, Moody's or Fitch or, if unrated, are considered to
be of comparable quality by the Investment Adviser. In the case of long-term
debt, the investment grade rating categories are AAA through BBB for S&P, Aaa
through Baa for Moody's and AAA through BBB for Fitch. In the case of short-
term notes, the investment grade rating categories are SP-l+ through SP-3 for
S&P, MIG-1 through MIG-4 for Moody's and F-1+ through F-3 for Fitch. In the
case of tax-exempt commercial paper, the investment grade rating categories
are A-1+ through A-3 for S&P, Prime-1 through Prime-3 for Moody's and F-l+
through F-3 for Fitch. Obligations ranked in the fourth highest rating
category (BBB, SP-3 and A-3 for S&P; Baa, MIG-4 and Prime-3 for Moody's; and
BBB and F-3 for Fitch), while considered "investment grade," may have certain
speculative characteristics. There may be sub-categories or gradations
indicating relative standing within the rating categories set forth above. See
Appendix B to this Prospectus for a description of S&P's, Moody's and Fitch's
ratings of California Municipal Bonds and Municipal Bonds. In assessing the
quality of California Municipal Bonds and Municipal Bonds with respect to the
foregoing requirements, the Investment Adviser will take into account the
portfolio insurance as well as the nature of any letters of credit or similar
credit enhancement to which particular Municipal Bonds are entitled and the
creditworthiness of the insurance company or financial institution that
provided such insurance or credit enhancement. Consequently, if California
Municipal Bonds or Municipal Bonds are covered by insurance policies issued by
insurers whose claims-paying ability is rated AAA by S&P or Fitch or Aaa by
Moody's, the Investment Adviser may consider such municipal obligations to be
equivalent to AAA- or Aaa- rated securities, as the case may be, even though
such California Municipal Bonds or Municipal Bonds would generally be assigned
a lower rating if the rating were based primarily upon the credit
characteristics of the issuers without regard to the insurance feature. The
insured California Municipal Bonds and Municipal Bonds must also comply with
the standards applied by the insurance carriers in determining eligibility for
portfolio insurance.
 
  The Fund's investments may also include variable rate demand obligations
("VRDOs") and VRDOs in the form of participation interests ("Participating
VRDOs") in variable rate tax-exempt obligations held by a financial
institution, typically a commercial bank. The VRDOs in which the Fund will
invest are tax-exempt obligations in the opinion of counsel to the issuer that
contain a floating or variable interest rate adjustment formula and an
unconditional right of demand on the part of the holder thereof to receive
payment of the unpaid principal balance plus accrued interest on a short
notice period not to exceed seven days. Participating VRDOs provide the Fund
with a specified undivided interest (up to 100%) in the underlying obligation
and the right to demand payment of the unpaid principal balance plus accrued
interest on the Participating VRDOs from the financial institution on a
specified number of days' notice, not to exceed seven days. There is, however,
the possibility that because of default or insolvency, the demand feature of
VRDOs or Participating VRDOs may not be honored. The Fund has been advised by
its counsel that the Fund should be entitled to treat the income received on
Participating VRDOs as interest from tax-exempt obligations.
 
  The average maturity of the Fund's portfolio securities will vary based upon
the Investment Adviser's assessment of economic and market conditions. The net
asset value of the shares of common stock of a closed-end investment company,
such as the Fund, which invests primarily in fixed-income securities, changes
as the general levels of interest rates fluctuate. When interest rates
decline, the value of a fixed-income portfolio can be expected to rise.
Conversely, when interest rates rise, the value of a fixed-income portfolio
can be expected to decline. Prices of longer-term securities generally
fluctuate more in response to interest rate changes than do
 
                                      15
<PAGE>
 
short-term or medium-term securities. These changes in net asset value are
likely to be greater in the case of a fund having a leveraged capital
structure, as proposed for the Fund. See "Risks and Special Considerations of
Leverage."
 
  The Fund intends to invest primarily in long-term California Municipal Bonds
and Municipal Bonds with a maturity of more than ten years. Also, the Fund may
invest in intermediate-term California Municipal Bonds and Municipal Bonds
with a maturity of between three years and ten years. The Fund may invest in
short-term, tax-exempt securities, short-term U.S. Government securities,
repurchase agreements or cash. Such short-term securities or cash will not
exceed 20% of its total assets except during interim periods pending
investment of the net proceeds of public offerings of the Fund's securities or
in anticipation of the repurchase or redemption of the Fund's securities and
temporary periods when, in the opinion of the Investment Adviser, prevailing
market or economic conditions warrant. The Fund does not ordinarily intend to
realize significant interest income not exempt from Federal or California
income tax.
 
  The Fund is classified as non-diversified within the meaning of the 1940
Act, which means that the Fund is not limited by such Act in the proportion of
its assets that it may invest in securities of a single issuer. However, the
Fund's investments will be limited so as to qualify the Fund for special tax
treatment afforded regulated investment companies under the Code. See "Taxes."
To qualify, among other requirements, the Fund will limit its investments so
that, at the close of each quarter of the taxable year, (i) not more than 25%
of the market value of the Fund's total assets will be invested in the
securities (other than U.S. Government securities) of a single issuer, and
(ii) with respect to 50% of the market value of its total assets, not more
than 5% of the market value of its total assets will be invested in the
securities (other than U.S. Government securities) of a single issuer. A fund
that elects to be classified as "diversified" under the 1940 Act must satisfy
the foregoing 5% requirement with respect to 75% of its total assets. To the
extent that the Fund assumes large positions in the securities of a small
number of issuers, the Fund's yield may fluctuate to a greater extent than
that of a diversified company as a result of changes in the financial
condition or in the market's assessment of the issuers.
 
PORTFOLIO INSURANCE
 
  Under normal circumstances, at least 80% of the Fund's assets will be
invested in California Municipal Bonds and Municipal Bonds either (i) insured
under an insurance policy purchased by the Fund or (ii) insured under an
insurance policy obtained by the issuer thereof or any other party. The Fund
will seek to limit its investments to municipal obligations insured under
insurance policies issued by insurance carriers that have total admitted
assets (unaudited) of at least $75,000,000 and capital and surplus (unaudited)
of at least $50,000,000 and insurance claims-paying ability ratings of AAA
from S&P or Fitch or Aaa from Moody's. There can be no assurance that
insurance from insurance carriers meeting these criteria will be available.
Currently, it is anticipated that a majority of the insured California
Municipal Bonds and Municipal Bonds in the Fund's portfolio will be insured by
the following insurance companies that satisfy the foregoing criteria: AMBAC
Indemnity Corporation, Financial Guaranty Insurance Company, Financial
Security Assurance and Municipal Bond Investors Assurance Corporation. The
Fund also may purchase California Municipal Bonds and Municipal Bonds covered
by insurance issued by any other insurance company that satisfies the
foregoing criteria. It is anticipated that initially a majority of insured
California Municipal Bonds and Municipal Bonds held by the Fund will be
insured under policies obtained by parties other than the Fund.
 
  The Fund may purchase, but has no obligations to purchase, separate
insurance policies (the "Policies") from insurance companies meeting the
criteria set forth above that guarantee the payment of principal and interest
on specified eligible California Municipal Bonds and Municipal Bonds purchased
by the Fund. A California Municipal Bond or a Municipal Bond will be eligible
for coverage if it meets certain requirements of the insurance company set
forth in a Policy. In the event interest or principal on an insured California
Municipal Bond or Municipal Bond is not paid when due, the insurer will be
obligated under its Policy to make such payment not later than 30 days after
it has been notified by, and provided with documentation from, the Fund that
such nonpayment has occurred.
 
                                      16
<PAGE>
 
  The Policies will be effective only as to insured California Municipal Bonds
and Municipal Bonds beneficially owned by the Fund. In the event of a sale of
any California Municipal Bonds and Municipal Bonds held by the Fund, the
issuer of the relevant Policy will be liable only for those payments of
interest and principal that are then due and owing. The Policies will not
guarantee the market value of the insured California Municipal Bonds and
Municipal Bonds or the value of the shares of the Fund.
 
  The insurer will not have the right to withdraw coverage on securities
insured by their Policies and held by the Fund so long as such securities
remain the in the Fund's portfolio. In addition, the insurer may not cancel
its Policies for any reason except failure to pay premiums when due. The Board
of Directors of the Fund will reserve the right to terminate any of the
Policies if it determines that the benefits to the Fund of having its
portfolio insured under such policy are not justified by the expense involved.
 
  The premiums for the Policies are paid by the Fund and the yield on the
Fund's portfolio is reduced thereby. The Investment Adviser estimates that the
cost of the annual premiums for the Policies currently ranges from
approximately .02 of 1% to .15 of 1% of the principal amount of the California
Municipal Bonds and Municipal Bonds covered by such Policies. The estimate is
based on the expected composition of the Fund's portfolio of California
Municipal Bonds and Municipal Bonds. In instances in which the Fund purchases
California Municipal Bonds and Municipal Bonds insured under policies obtained
by parties other than the Fund, the Fund does not pay the premiums for such
policies; rather, the cost of such policies may be reflected in the purchase
price of the California Municipal Bonds and Municipal Bonds.
 
  It is the intention of the Investment Adviser to retain any insured
securities that are in default or in significant risk of default and to place
a value on the insurance, which ordinarily will be the difference between the
market value of the defaulted security and the market value of similar
securities which are not in default. In certain circumstances, however, the
Investment Adviser may determine that an alternative value for the insurance,
such as the difference between the market value of the defaulted security and
its par value, is more appropriate. The Investment Adviser will be unable to
manage the portfolio to the extent it holds defaulted securities, which may
limit its ability in certain circumstances to purchase other California
Municipal Bonds and Municipal Bonds. See "Net Asset Value" below for a more
complete description of the Fund's method of valuing defaulted securities and
securities that have a significant risk of default.
 
  There can be no assurance that insurance with the terms and issued by
insurance carriers meeting the criteria described above will continue to be
available to the Fund. In the event the Board of Directors determines that
such insurance is unavailable or that the cost of such insurance outweighs the
benefits to the Fund, the Fund may modify the criteria for insurance carriers
or the terms of the insurance, or may discontinue its policy of maintaining
insurance for all or any of the California Municipal Bonds and Municipal Bonds
held in the Fund's portfolio. Although the Investment Adviser periodically
reviews the financial condition of each insurer, there can be no assurance
that the insurers will be able to honor their obligations under the
circumstances.
 
  The portfolio insurance reduces financial or credit risk (i.e., the
possibility that the owners of the insured California Municipal Bonds or
Municipal Bonds will not receive timely scheduled payments of principal or
interest). However, the insured California Municipal Bonds or Municipal Bonds
are subject to market risk (i.e., fluctuations in market value as a result of
changes in prevailing interest rates).
 
DESCRIPTION OF CALIFORNIA MUNICIPAL BONDS AND MUNICIPAL BONDS
 
  California Municipal Bonds and Municipal Bonds include debt obligations
issued to obtain funds for various public purposes, including construction of
a wide range of public facilities, refunding of outstanding obligations and
obtaining funds for general operating expenses and loans to other public
institutions and facilities. In addition, certain types of industrial
development bonds ("IDBs") are issued by or on behalf of public authorities to
finance various privately operated facilities, including certain local
facilities for water supply, gas, electricity, sewage or solid waste disposal.
For purposes of this Prospectus, such obligations are considered Municipal
Bonds
 
                                      17
<PAGE>
 
if the interest paid thereon is exempt from Federal income tax and as
California Municipal Bonds if the interest thereon is exempt from Federal
income tax and exempt from California income tax, even though such bonds may
be IDBs or "private activity bonds" as discussed below. Also, for purposes of
this Prospectus, Non-Municipal Tax-Exempt securities as discussed above will
be considered California Municipal Bonds or Municipal Bonds.
 
  The two principal classifications of California Municipal Bonds and
Municipal Bonds are "general obligation" bonds and "revenue" bonds, which
latter category includes IDBs and, for bonds issued after August 15, 1986,
private activity bonds. General obligation bonds (other than those of the
State of California, which has limited taxing powers) are secured by the
issuer's pledge of faith, credit and taxing power for the repayment of
principal and the payment of interest. Revenue or special obligation bonds are
payable only from the revenues derived from a particular facility or class of
facilities or, in some cases, from the proceeds of a special excise tax or
other specific revenue source such as from the user of the facility being
financed. IDBs are in most cases revenue bonds and do not generally constitute
the pledge of the credit or taxing power of the issuer of such bonds. The
repayment of principal and the payment of interest on such industrial
development bonds depends solely on the ability of the user of the facility
financed by the bonds to meet its financial obligations and the pledge, if
any, of real and personal property so financed as security for such payment.
California Municipal Bonds and Municipal Bonds may also include "moral
obligation" bonds, which are normally issued by special purpose public
authorities. If an issuer of moral obligation bonds is unable to meet its
obligations, the repayment of such bonds becomes a moral commitment but not a
legal obligation of the state or municipality in question.
 
  The Fund may purchase California Municipal Bonds and Municipal Bonds
classified as "private activity bonds" (in general, bonds that benefit non-
governmental entities). Interest received on certain tax-exempt securities
that are classified as "private activity bonds" may subject certain investors
in the Fund to an alternative minimum tax. There is no limitation on the
percentage of the Fund's assets that may be invested in California Municipal
Bonds and Municipal Bonds that may subject certain investors to an alternative
minimum tax. See "Taxes--General." Also included within the general category
of California Municipal Bonds and Municipal Bonds are participation
certificates issued by government authorities or entities to finance the
acquisition or construction of equipment, land and/or facilities. The
certificates represent participations in a lease, an installment purchase
contract or a conditional sales contract (hereinafter collectively referred to
as "lease obligations") relating to such equipment, land or facilities.
Although lease obligations do not constitute general obligations of the issuer
for which the issuer's unlimited taxing power is pledged, a lease obligation
frequently is backed by the issuer's covenant to budget for, appropriate and
make the payments due under the lease obligation. However, certain lease
obligations contain "non-appropriation" clauses which provide that the issuer
has no obligation to make lease or installment purchase payments in future
years unless money is appropriated for such purpose on a yearly basis.
Although "non-appropriation" lease obligations are secured by the lease
property, disposition of the property in the event of foreclosure might prove
difficult. These securities represent a relatively new type of financing that
has not yet developed the depth of marketability associated with more
conventional securities.
 
  Federal tax legislation has limited the types and volume of bonds the
interest on which qualifies for a Federal income tax exemption. As a result,
this legislation and legislation that may be enacted in the future may affect
the availability of California Municipal Bonds and Municipal Bonds for
investment by the Fund.
 
SPECIAL CONSIDERATIONS RELATING TO CALIFORNIA MUNICIPAL BONDS
 
  The Fund ordinarily will invest at least 80% of its total assets in
California Municipal Bonds, and therefore it is more susceptible to factors
adversely affecting issuers of California Municipal Bonds than is a municipal
bond mutual fund that is not concentrated in issuers of California Municipal
Bonds to this degree. Beginning in the 1990-91 fiscal year, the State of
California faced the worst economic, fiscal and budget conditions since the
1930s. On July 5, 1994, all three of the rating agencies rating the State of
California's long-term debt lowered their ratings of the State of California's
general obligation bonds. Moody's lowered its rating from "Aa" to
 
                                      18
<PAGE>
 
"A1," S&P lowered its rating from "A+" to "A" and Fitch lowered its rating
from "AA" to "A." Although a steady upturn has been underway since 1994, pre-
recession job levels are not expected to be reached until later in the decade.
As of the date of this Prospectus, S&P and Fitch have upgraded their ratings
to A+ and AA-, respectively. No assurance can be given that such ratings will
not be lowered in the future. FAM does not believe that the current economic
conditions in California will have a significant adverse effect on the Fund's
ability to invest in high quality California Municipal Bonds. For a discussion
of economic and other conditions in the State of California, see Appendix A,
"Economic and Other Conditions in California."
 
OTHER INVESTMENT POLICIES
 
  The Fund has adopted certain other policies as set forth below:
 
  Borrowings. The Fund is authorized to borrow money in amounts of up to 5% of
the value of its total assets at the time of such borrowings; provided,
however, that the Fund is authorized to borrow moneys in amounts of up to 33
1/3% of the value of its total assets at the time of such borrowings to
finance the repurchase of its own Common Stock pursuant to tender offers or
otherwise to redeem or repurchase shares of preferred stock or for temporary,
extraordinary or emergency purposes. Borrowings by the Fund (commonly known,
as with the issuance of Preferred Stock, as "leveraging") create an
opportunity for greater total return since the Fund will not be required to
sell portfolio securities to repurchase or redeem shares but, at the same
time, increase exposure to capital risk. In addition, borrowed funds are
subject to interest costs that may offset or exceed the return earned on the
borrowed funds.
 
  When-Issued Securities and Delayed Delivery Transactions. The Fund may
purchase or sell California Municipal Bonds and Municipal Bonds on a delayed
delivery basis or on a when-issued basis at fixed purchase or sale terms.
These transactions arise when securities are purchased or sold by the Fund
with payment and delivery taking place in the future. The purchase will be
recorded on the date the Fund enters into the commitment, and the value of the
obligation will thereafter be reflected in the calculation of the Fund's net
asset value. The value of the obligation on the delivery day may be more or
less than its purchase price. A separate account of the Fund will be
established with its custodian consisting of cash, cash equivalents or liquid
securities having a market value at all times at least equal to the amount of
the commitment.
 
  Indexed and Inverse Floating Obligations. The Fund may invest in California
Municipal Bonds and Municipal Bonds the return on which is based on a
particular index of value or interest rates. For example, the Fund may invest
in California Municipal Bonds and Municipal Bonds that pay interest based on
an index of Municipal Bond interest rates. The principal amount payable upon
maturity of certain California Municipal Bonds and Municipal Bonds also may be
based on the value of an index. To the extent the Fund invests in these types
of Municipal Bonds, the Fund's return on such California Municipal Bonds and
Municipal Bonds will be subject to risk with respect to the value of the
particular index. Also, the Fund may invest in so-called "inverse floating
obligations" or "residual interest bonds" on which the interest rates
typically vary inversely with a short-term floating rate (which may be reset
periodically by a dutch auction, a remarketing agent, or by reference to a
short-term tax-exempt interest rate index). The Fund may purchase in the
secondary market synthetically-created inverse floating rate bonds evidenced
by custodial or trust receipts. Generally, interest rates on inverse floating
rate bonds will decrease when short-term rates increase, and will increase
when short-term rates decrease. Such securities have the effect of providing a
degree of investment leverage, since they may increase or decrease in value in
response to changes, as an illustration, in market interest rates at a rate
that is a multiple (typically two) of the rate at which fixed-rate, long-term,
tax-exempt securities increase or decrease in response to such changes. As a
result, the market values of such securities generally will be more volatile
than the market values of fixed-rate tax-exempt securities. To seek to limit
the volatility of these securities, the Fund may purchase inverse floating
obligations with shorter-term maturities or limitations on the extent to which
the interest rate may vary. The Investment Adviser believes that indexed and
inverse floating obligations represent a flexible portfolio management
instrument for the Fund that allows the Investment Adviser to vary the degree
of investment leverage relatively efficiently under different market
conditions.
 
 
                                      19
<PAGE>
 
  Call Rights. The Fund may purchase a California Municipal Bond or Municipal
Bond issuer's right to call all or a portion of such California Municipal Bond
or Municipal Bond for mandatory tender for purchase (a "Call Right"). A holder
of a Call Right may exercise such right to require a mandatory tender for the
purchase of related California Municipal Bonds or Municipal Bonds, subject to
certain conditions. A Call Right that is not exercised prior to the maturity
of the related California Municipal Bond or Municipal Bond will expire without
value. The economic effect of holding both the Call Right and the related
California Municipal Bond or Municipal Bond is identical to holding a
California Municipal Bond or Municipal Bond as a non-callable security.
 
  Repurchase Agreements. The Fund may invest in securities pursuant to
repurchase agreements. Repurchase agreements may be entered into only with a
member bank of the Federal Reserve System or a primary dealer in U.S.
Government securities or an affiliate thereof. Under such agreements, the
seller agrees, upon entering into the contract, to repurchase the security at
a mutually agreed-upon time and price, thereby determining the yield during
the term of the agreement. The Fund may not invest in repurchase agreements
maturing in more than seven days if such investments, together with all other
illiquid investments, would exceed 15% of the Fund's net assets. In the event
of default by the seller under a repurchase agreement, the Fund may suffer
time delays and incur costs or possible losses in connection with the
disposition of the underlying securities.
 
  In general, for Federal income tax purposes, repurchase agreements are
treated as collateralized loans secured by the securities "sold." Therefore,
amounts earned under such agreements will not be considered tax-exempt
interest.
 
RATING AGENCY GUIDELINES
 
  Certain of the capitalized terms used herein are defined in the Glossary
that appears at the end of this Prospectus.
 
  The Fund intends that, so long as shares of AMPS are outstanding, the
composition of its portfolio will reflect guidelines established by Moody's
and S&P in connection with the Fund's receipt of a rating for such shares on
or prior to their Date of Original Issue of at least "aaa" from Moody's and
AAA from S&P. Moody's and S&P, which are nationally recognized statistical
rating organizations, issue ratings for various securities reflecting the
perceived creditworthiness of such securities. The guidelines described below
have been developed by Moody's and S&P in connection with issuances of asset-
backed and similar securities, including debt obligations and variable rate
preferred stock, generally on a case-by-case basis through discussions with
the issuers of these securities. The guidelines are designed to ensure that
assets underlying outstanding debt or preferred stock will be varied
sufficiently and will be of sufficient quality and amount to justify
investment-grade ratings. The guidelines do not have the force of law but have
been adopted by the Fund in order to satisfy current requirements necessary
for Moody's and S&P to issue the above-described ratings for shares of AMPS,
which ratings generally are relied upon by institutional investors in
purchasing such securities. The guidelines provide a set of tests for
portfolio composition and asset coverage that supplement (and in some cases
are more restrictive than) the applicable requirements under the 1940 Act. See
"Description of AMPS--Asset Maintenance."
 
  The Fund intends to maintain a Discounted Value for its portfolio at least
equal to the AMPS Basic Maintenance Amount. Moody's and S&P each has
established separate guidelines for determining Discounted Value. To the
extent any particular portfolio holding does not satisfy the applicable rating
agency's guidelines, all or a portion of such holding's value will not be
included in the calculation of Discounted Value (as defined by such rating
agency). The Moody's and S&P guidelines do not impose any limitations on the
percentage of Fund assets that may be invested in holdings not eligible for
inclusion in the calculation of the Discounted Value of the Fund's portfolio.
 
  Upon any failure to maintain the required Discounted Value, the Fund will
seek to alter the composition of its portfolio to reattain a Discounted Value
at least equal to the AMPS Basic Maintenance Amount on or prior to
 
                                      20
<PAGE>
 
the AMPS Basic Maintenance Cure Date, thereby incurring additional transaction
costs and possible losses and/or gains on dispositions of portfolio
securities. To the extent any such failure is not cured in a timely manner,
shares of AMPS will be subject to redemption. See "Description of AMPS--Asset
Maintenance" and "Description of AMPS--Redemption." The AMPS Basic Maintenance
Amount includes the sum of (i) the aggregate liquidation value of AMPS then
outstanding and (ii) certain accrued and projected payment obligations of the
Fund. See "Description of AMPS--Asset Maintenance."
 
  The Fund may, but is not required to, adopt any modifications to these
guidelines that hereafter may be established by Moody's or S&P. Failure to
adopt any such modifications, however, may result in a change in the ratings
described above or a withdrawal of ratings altogether. In addition, any rating
agency providing a rating for the shares of AMPS, at any time, may change or
withdraw any such rating. As set forth in the Articles Supplementary, the
Board of Directors, without shareholder approval, may modify certain
definitions or restrictions that have been adopted by the Fund pursuant to the
rating agency guidelines, provided the Board of Directors has obtained written
confirmation from Moody's and S&P that any such change would not impair the
ratings then assigned by Moody's and S&P to the AMPS.
 
  As described by Moody's and S&P, a preferred stock rating is an assessment
of the capacity and willingness of an issuer to pay preferred stock
obligations. The ratings on the AMPS are not recommendations to purchase, hold
or sell shares of AMPS, inasmuch as the ratings do not comment as to market
price or suitability for a particular investor, nor do the rating agency
guidelines described above address the likelihood that a holder of shares of
AMPS will be able to sell such shares in an Auction. The ratings are based on
current information furnished to Moody's and S&P by the Fund and the
Investment Adviser and information obtained from other sources. The ratings
may be changed, suspended or withdrawn as a result of changes in, or the
unavailability of, such information. The Common Stock has not been rated by a
nationally recognized statistical rating organization.
 
  S&P AAA Rating Guidelines. The Discounted Value of the Fund's S&P Eligible
Assets is calculated on each Valuation Date. See "Description of AMPS--Asset
Maintenance--AMPS Basic Maintenance Amount." S&P Eligible Assets include cash,
Receivables for California Municipal Bonds Sold (as defined below) and
California Municipal Bonds or Municipal Bonds eligible for consideration under
S&P's current guidelines. For purposes of calculating the Discounted Value of
the Fund's portfolio under current S&P guidelines, the fair market value of
California Municipal Bonds or Municipal Bonds eligible for consideration under
such guidelines must be discounted by the applicable S&P Discount Factor set
forth in the table below. The Discounted Value of a California Municipal Bond
or Municipal Bond eligible for consideration under S&P guidelines is the fair
market value thereof divided by the S&P Discount Factor. The S&P Discount
Factor used to discount a particular California Municipal Bond or Municipal
Bond will be determined by reference to (a)(i) the rating by S&P, Moody's or
Fitch on such Bond or (ii) in the event the California Municipal Bond is
insured under a Policy and the terms of the Policy permit the Fund, at its
option, to obtain other permanent insurance guaranteeing the timely payment of
interest on such California Municipal Bond and principal thereof to maturity,
the S&P insurance claims-paying ability rating of the issuer of the Policy or
(iii) in the event the California Municipal Bond is insured under an insurance
policy which guarantees the timely payment of interest on such California
Municipal Bond and principal thereof to maturity, the S&P insurance claims-
paying ability rating of the issuer of the insurance policy and (b) the S&P
Exposure Period. The S&P Exposure Period is the maximum period of time
following a Valuation Date, including the Valuation Date and the AMPS Basic
Maintenance Cure Date, that the Fund has to cure any failure to maintain, as
of such Valuation Date, a Discounted Value for its portfolio at least equal to
the AMPS Basic Maintenance Amount.
 
                                      21
<PAGE>
 
  S&P Discount Factors applicable to California Municipal Bonds for a range of
S&P Exposure Periods are set forth below:
 
<TABLE>
<CAPTION>
                                      S&P DISCOUNT FACTORS RATING CATEGORY
                                     ------------------------------------------
            EXPOSURE PERIOD             AAA        AA          A         BBB
            ---------------          ---------  ---------  ---------  ---------
   <S>                               <C>        <C>        <C>        <C>
   40 Business Days.................       200%       205%       220%       260%
   22 Business Days.................       180        185        200        240
   10 Business Days.................       165        170        185        225
    7 Business Days.................       160        165        180        220
    3 Business Days.................       140        145        160        200
</TABLE>
 
  Since the S&P Exposure Period currently applicable to the Fund is seven
Business Days, the S&P Discount Factors currently applicable to Municipal
Bonds eligible for consideration under S&P guidelines will be determined by
reference to the factors set forth opposite the exposure period line entitled
"7 Business Days." Notwithstanding the foregoing, (i) the S&P Discount Factor
for short-term California Municipal Bonds will be 115%, so long as such
California Municipal Bonds are rated A-1+ or SP-1+ by S&P and mature or have a
demand feature exercisable in 30 days or less, or 120% so long as such
California Municipal Bonds are rated A-1 or SP-1 by S&P and mature or have a
demand feature exercisable in 30 days or less, or 125% if such California
Municipal Bonds are not rated by S&P but are rated VMIG-1, P-1 or MIG-1 by
Moody's or F-1+ by Fitch; provided, however, such short-term California
Municipal Bonds rated by Moody's or Fitch but not rated by S&P having a demand
feature exercisable in 30 days or less must be backed by a letter of credit,
liquidity facility or guarantee from a bank or other financial institution
having a short-term rating of at least A-1+ from S&P; and further provided
that such short-term California Municipal Bonds rated by Moody's or Fitch but
not rated by S&P may comprise no more than 50% of short-term California
Municipal Bonds that qualify as S&P Eligible Assets, (ii) the S&P Discount
Factor for Receivables for California Municipal Bonds Sold that are due in
more than five Business Days from such Valuation Date will be the S&P Discount
Factor applicable to the California Municipal Bonds sold, and (iii) no S&P
Discount Factor will be applied to Cash or to Receivables for California
Municipal Bonds Sold if such receivables are due within five Business Days of
such Valuation Date. "Receivables for California Municipal Bonds Sold," for
purposes of calculating S&P Eligible Assets as of any Valuation Date, means
the book value of receivables for California Municipal Bonds sold as of or
prior to such Valuation Date if such receivables are due within five Business
Days of such Valuation Date. The Fund may adopt S&P Discount Factors for
Municipal Bonds other than California Municipal Bonds provided that S&P
advises the Fund in writing that such action will not adversely affect its
then current rating on the AMPS. For purposes of the foregoing, Anticipation
Notes rated SP-1 or, if not rated by S&P, rated VMIG-1 by Moody's or F-1+ by
Fitch, which do not mature or have a demand feature exercisable in 30 days and
which do not have a long-term rating, shall be considered to be short-term
California Municipal Bonds.
 
  The S&P guidelines require certain minimum issue size and geographical
diversification and impose other requirements for purposes of determining S&P
Eligible Assets. In order to be considered S&P Eligible Assets, Municipal
Bonds must:
 
    (i) be interest bearing and pay interest at least semi-annually;
 
    (ii) be payable with respect to principal and interest in U.S. dollars;
 
    (iii) be publicly rated BBB or higher by S&P or, except in the case of
  Anticipation Notes that are grant anticipation notes or bond anticipation
  notes, which must be rated by S&P to be included in S&P Eligible Assets, if
  not rated by S&P but rated by Moody's or Fitch, be rated at least A by
  Moody's or Fitch (provided that such Moody's-rated or Fitch-rated
  California Municipal Bonds will be included in S&P Eligible Assets only to
  the extent the fair market value of such California Municipal Bonds does
  not exceed 50% of the aggregate fair market value of the S&P Eligible
  Assets. For purposes of determining the S&P Discount Factors applicable to
  any such Moody's-rated or Fitch-rated Municipal Bonds, such California
  Municipal Bonds will be deemed to have an S&P rating that is one full
  rating category lower than its Moody's rating or Fitch rating);
 
    (iv) not be subject to a covered call or covered put option written by
  the Fund;
 
 
                                      22
<PAGE>
 
    (v) except for inverse floaters, not be part of a private placement of
  Municipal Bonds; and
 
    (vi) except for inverse floaters, be part of an issue with an original
  issue size of at least $20 million or, if of an issue with an original
  issue size below $20 million (but in no event below $10 million), be issued
  by an issuer with a total of at least $50 million of securities
  outstanding.
 
Notwithstanding the foregoing:
 
    (i) California Municipal Bonds of any one issuer or guarantor (excluding
  bond insurers) will be considered S&P Eligible Assets only to the extent
  the fair market value of such Bonds does not exceed 10% of the aggregate
  fair market value of the S&P Eligible Assets, provided that 2% is added to
  the applicable S&P Discount Factor for every 1% by which the fair market
  value of such California Municipal Bonds exceeds 5% of the aggregate fair
  market value of the S&P Eligible Assets;
 
    (ii) California Municipal Bonds of any one issue type category (as
  described below) will be considered S&P Eligible Assets only to the extent
  the market value of such California Municipal Bonds does not exceed 25% of
  the aggregate market value of S&P Eligible Assets, except that California
  Municipal Bonds falling within the utility issue type category will be
  broken down into three sub-categories (as described below) and such
  California Municipal Bonds will be considered S&P Eligible Assets to the
  extent the market value of such California Municipal Bonds in each such
  sub-category does not exceed 25% of the aggregate market value of S&P
  Eligible Assets and except that California Municipal Bonds falling within
  the general obligation issue type category will be considered S&P Eligible
  Assets to the extent the market value of such California Municipal Bonds
  does not exceed 50% of the aggregate market value of S&P Eligible Assets.
  For purposes of the issue type category requirement described above,
  California Municipal Bonds will be classified within one of the following
  categories: health care issues, housing issues, educational facilities
  issues, student loan issues, transportation issues, industrial development
  bond issues, utility issues, general obligation issues, lease obligations,
  escrowed bonds and other issues not falling within one of the
  aforementioned categories. The general obligation issue type category
  includes any issuer that is directly or indirectly guaranteed by the State
  of California or its political subdivisions. Utility issuers are included
  in the general obligation issue type category if the issuer is directly or
  indirectly guaranteed by the State of California or its political
  subdivisions. For purposes of the issue type category requirement described
  above, California Municipal Bonds in the utility issue type category will
  be classified within one of the three following sub-categories: (1)
  electric, gas and combination issues (if the combination issue includes an
  electric issue), (2) water and sewer utilities and combination issues (if
  the combination issue does not include an electric issue), and (3)
  irrigation, resource recovery, solid waste and other utilities, provided
  that California Municipal Bonds included in this sub-category (iii) must be
  rated by S&P in order to be included in S&P Eligible Assets; and
 
    (iii) California Municipal Bonds which are escrow bonds or defeased bonds
  may compose up to 100% of the aggregate market value of S&P Eligible Assets
  if such California Municipal Bonds initially are assigned a rating by S&P
  in accordance with S&P's legal defeasance criteria or rerated by S&P as
  economic defeased escrow bonds and assigned an AAA rating. California
  Municipal Bonds may be rated as escrow bonds by another nationally
  recognized rating agency or rerated as an escrow bond and assigned the
  equivalent of an S&P AAA rating, provided that such equivalent rated
  California Municipal Bonds are limited to 50% of the aggregate market value
  of S&P Eligible Assets and are deemed to have an AA S&P rating for purposes
  of determining the S&P Discount Factor applicable to such California
  Municipal Bonds. The limitations on California Municipal Bonds of any one
  issuer in clause (i) above is not applicable to escrow bonds, however,
  economically defeased bonds that are either initially rated or rerated by
  S&P or another nationally recognized rating agency and assigned the same
  rating level as the issuer of the California Municipal Bonds will remain in
  its original issue type category set forth in clause (ii) above. California
  Municipal Bonds that are legally defeased and secured by securities issued
  or guaranteed by the United States Government are not required to meet the
  minimum issuance size requirement set forth above.
 
                                      23
<PAGE>
 
  The Fund may include Municipal Bonds other than California Municipal Bonds
as S&P Eligible Assets pursuant to guidelines and restrictions to be
established by S&P, provided that S&P advises the Fund in writing that such
action will not adversely affect its then-current rating on the AMPS.
 
  As discussed herein, the Fund may engage in options or futures transactions.
For so long as any shares of AMPS are rated by S&P, the Fund will not purchase
or sell financial futures contracts, write, purchase or sell options on
financial futures contracts or write put options (except covered put options)
or call options (except covered call options) on portfolio securities unless
it receives written confirmation from S&P that engaging in such transactions
will not impair the ratings then assigned to the shares of AMPS by S&P, except
that the Fund may purchase or sell financial futures contracts based on the
Bond Buyer Municipal Bond Index (the "Municipal Index") or United States
Treasury Bonds or Notes ("Treasury Bonds") and write, purchase or sell put and
call options on such contracts (collectively "S&P Hedging Transactions"),
subject to the following limitations:
 
    (i) the Fund will not engage in any S&P Hedging Transaction based on the
  Municipal Index (other than transactions that terminate a financial futures
  contract or option held by the Fund by the Fund's taking an opposite
  position thereto ("Closing Transactions")), that would cause the Fund at
  the time of such transaction to own or have sold the least of (A) more than
  1,000 outstanding financial futures contracts based on the Municipal Index,
  (B) outstanding financial futures contracts based on the Municipal Index
  exceeding in number 25% of the quotient of the fair market value of the
  Fund's total assets divided by $1,000 or (C) outstanding financial futures
  contracts based on the Municipal Index exceeding in number 10% of the
  average number of daily traded financial futures contracts based on the
  Municipal Index in the 30 days preceding the time of effecting such
  transaction as reported by The Wall Street Journal;
 
    (ii) the Fund will not engage in any S&P Hedging Transaction based on
  Treasury Bonds (other than Closing Transactions) that would cause the Fund
  at the time of such transaction to own or have sold the lesser of (A)
  outstanding financial futures contracts based on Treasury Bonds and on the
  Municipal Index exceeding in number 25% of the quotient of the fair market
  value of the Fund's total assets divided by $100,000 ($200,000 in the case
  of the two-year United States Treasury Note) or (B) outstanding financial
  futures contracts based on Treasury Bonds exceeding in number 10% of the
  average number of daily traded financial futures contracts based on
  Treasury Bonds in the 30 days preceding the time of effecting such
  transaction as reported by The Wall Street Journal;
 
    (iii) the Fund will engage in Closing Transactions to close out any
  outstanding financial futures contract that the Fund owns or has sold or
  any outstanding option thereon owned by the Fund in the event (A) the Fund
  does not have S&P Eligible Assets with an aggregate Discounted Value equal
  to or greater than the AMPS Basic Maintenance Amount on two consecutive
  Valuation Dates and (B) the Fund is required to pay Variation Margin on the
  second such Valuation Date;
 
    (iv) the Fund will engage in a Closing Transaction to close out any
  outstanding financial futures contract or option thereon in the month prior
  to the delivery month under the terms of such financial futures contract or
  option thereon unless the Fund holds the securities deliverable under such
  terms; and
 
    (v) when the Fund writes a financial futures contract or an option
  thereon, it will either maintain an amount of cash, cash equivalents or
  high grade (rated A or better by S&P) fixed-income securities in a
  segregated account with the Fund's custodian, so that the amount so
  segregated plus the amount of Initial Margin and Variation Margin held in
  the account of or on behalf of the Fund's broker with respect to such
  financial futures contract or option equals the fair market value of the
  financial futures contract or option, or, in the event the Fund writes a
  financial futures contract or option thereon that requires delivery of an
  underlying security, it shall hold such underlying security in its
  portfolio.
 
  For purposes of determining whether the Fund has S&P Eligible Assets with a
Discounted Value that equals or exceeds the AMPS Basic Maintenance Amount, the
Discounted Value of cash or securities held for the payment of Initial Margin
or Variation Margin shall be zero and the aggregate Discounted Value of S&P
Eligible Assets shall be reduced by an amount equal to (i) 30% of the
aggregate settlement value, as marked to market,
 
                                      24
<PAGE>
 
of any outstanding financial futures contracts based on the Municipal Index
that are owned by the Fund plus (ii) 25% of the aggregate settlement value, as
marked to market, of any outstanding financial futures contracts based on
Treasury Bonds which contracts are owned by the Fund.
 
  Moody's "aaa" Rating Guidelines. The Discounted Value of the Fund's Moody's
Eligible Assets is calculated on each Valuation Date. See "Description of
AMPS--Asset Maintenance--AMPS Basic Maintenance Amount." Moody's Eligible
Assets include cash, Receivables for California Municipal Bonds or Municipal
Bonds (as defined below), and California Municipal Bonds or Municipal Bonds
eligible for consideration under Moody's guidelines. For purposes of
calculating the Discounted Value of the Fund's portfolio under current Moody's
guidelines, the fair market value of Municipal Bonds eligible for
consideration under such guidelines must be discounted by the applicable
Moody's Discount Factor set forth in the table below. The Discounted Value of
a Municipal Bond eligible for consideration under Moody's guidelines is the
lower of par and the quotient of the fair market value thereof divided by the
Moody's Discount Factor. The Moody's Discount Factor used to discount a
particular California Municipal Bond or Municipal Bond will be determined by
reference to (a) (i) the rating by Moody's or S&P on such Bond or (ii) in the
event the Moody's Eligible Asset is insured under a Policy and the terms of
the Policy permit the Fund, at its option, to obtain other insurance
guaranteeing the timely payment of interest on such Moody's Eligible Asset and
principal thereof to maturity, the Moody's insurance claims-paying ability
rating of the issuer of the Policy or (iii) in the event the Moody's Eligible
Asset is insured under an insurance policy which guarantees the timely payment
of interest on such Moody's Eligible Asset and principal thereof to maturity,
the Moody's insurance claims-paying ability rating of the issuer of the
insurance policy (provided that for purposes of clauses (ii) and (iii) if the
insurance claims-paying ability of an issuer of a Policy or insurance policy
is not rated by Moody's but is rated by S&P, such issuer shall be deemed to
have a Moody's insurance claims-paying ability rating which is two full
categories lower than the S&P insurance claims-paying ability rating) and (b)
the Moody's Exposure Period. Moody's Discount Factors for a range of Moody's
Exposure Periods are set forth below:
 
<TABLE>
<CAPTION>
                                 MOODY'S DISCOUNT FACTORS RATING CATEGORY
                           -----------------------------------------------------
 MOODY'S EXPOSURE PERIOD   AAA(1) AA(1) A(1)  BAA(1) OTHER(2) VMIG-1(3) SP-1+(3)
 -----------------------   ------ ----- ----  ------ -------- --------- --------
 <S>                       <C>    <C>   <C>   <C>    <C>      <C>       <C>
 7 weeks or less.........   151%   159% 168%   202%    229%      136%     148%
 8 weeks or less but
  greater than seven
  weeks..................   154    164  173    205     235       137      149
 9 weeks or less but
  greater than eight
  weeks..................   158    169  179    209     242       138      150
</TABLE>
- --------
(1) Moody's rating.
(2) California Municipal Bonds and Municipal Bonds not rated by Moody's but
    rated BBB or BBB+ by S&P.
(3) California Municipal Bonds and Municipal Bonds rated MIG-1, VMIG-1 or P-1
    or, if not rated by Moody's, rated SP-1+ or A-1+ by S&P which do not
    mature or have a demand feature at par exercisable within the Moody's
    Exposure Period and which do not have a long-term rating. For the purposes
    of the definition of Moody's Eligible Assets, these securities will have
    an assumed rating of A by Moody's.
 
provided, however, in the event a Moody's Discount Factor applicable to a
Moody's Eligible Asset is determined by reference to an insurance claims-
paying ability rating in accordance with clause (a)(ii) or (a)(iii), such
Moody's Discount Factor shall be increased by an amount equal to 50% of the
difference between (a) the percentage set forth in the foregoing table under
the applicable rating category and (b) the percentage set forth in the
foregoing table under the rating category which is one category lower than the
applicable rating category.
 
  Since the Moody's Exposure Period currently is 49 days, the Moody's Discount
Factors currently applicable to Municipal Bonds eligible for consideration
under Moody's guidelines will be determined by reference to the factors set
forth opposite the exposure period line entitled "7 weeks or less."
Notwithstanding the foregoing, (i) no Moody's Discount Factor will be applied
to short-term California Municipal Bonds and short-term Municipal Bonds, so
long as such California Municipal Bonds and Municipal Bonds are rated at least
MIG-1, VMIG-1 or P-1 by Moody's and mature or have a demand feature at par
exercisable within the Moody's Exposure Period, and the Moody's Discount
Factor for such Bonds will be 125% if such Bonds are not rated by Moody's but
are rated A-1+, SP-1+ or AA by S&P and mature or have a demand feature at par
exercisable within the Moody's Exposure Period, and (ii) no Moody's Discount
Factor will be applied to cash or to
 
                                      25
<PAGE>
 
Receivables for California Municipal Bonds or Municipal Bonds Sold.
"Receivables for California Municipal Bonds or Municipal Bonds Sold," for
purposes of calculating Moody's Eligible Assets as of any Valuation Date,
means no more than the aggregate of the following: (i) the book value of
receivables for California Municipal Bonds or Municipal Bonds sold as of or
prior to such Valuation Date if such receivables are due within five Business
Days of such Valuation Date, and if the trades which generated such
receivables are (A) settled through clearing house firms with respect to which
the Fund has received prior written authorization from Moody's or (B) with
counterparties having a Moody's long-term debt rating of at least Baa3; and
(ii) the Moody's Discounted Value of California Municipal Bonds or Municipal
Bonds sold as of or prior to such Valuation Date that generated receivables,
if such receivables are due within five Business Days of such Valuation Date
but do not comply with either of conditions (A) or (B) of the preceding clause
(i).
 
  The Moody's guidelines impose certain requirements as to minimum issue size,
issuer diversification and geographical concentration, as well as other
requirements for purposes of determining whether California Municipal Bonds or
Municipal Bonds constitute Moody's Eligible Assets, as set forth in the table
below:
 
<TABLE>
<CAPTION>
                                                           MAXIMUM                   MAXIMUM STATE
                              MINIMUM       MAXIMUM      ISSUE TYPE   MAXIMUM COUNTY OR TERRITORY
                             ISSUE SIZE    UNDERLYING   CONCENTRATION CONCENTRATION  CONCENTRATION
            RATING          ($ MILLIONS) OBLIGOR (%)(1)   (%)(1)(3)     (%)(1)(4)      (%)(1)(5)
            ------          ------------ -------------- ------------- -------------- -------------
   <S>                      <C>          <C>            <C>           <C>            <C>
   Aaa.....................      10           100            100           100            100
   Aa......................      10            20             60            60             60
   A.......................      10            10             40            40             40
   Baa.....................      10             6             20            20             20
   Other (2)...............      10             4             12            12             12
</TABLE>
- --------
(1) The referenced percentages represent maximum cumulative totals for the
    related rating category and each lower rating category.
(2) California Municipal Bonds and Municipal Bonds not rated by Moody's but
    rated BBB or BBB+ by S&P.
(3) Does not apply to general obligation bonds.
(4) Applicable to general obligation bonds only.
(5) Does not apply to California Municipal Bonds. Territorial bonds (other
    than those issued by Puerto Rico and counted collectively) are each
    limited to 10% of Moody's Eligible Assets. For diversification purposes,
    Puerto Rico will be treated as a state.
 
  For purposes of the maximum underlying obligor requirement described above,
any California Municipal Bond or Municipal Bond backed by the guaranty, letter
of credit or insurance issued by a third party will be deemed to be issued by
such third party if the issuance of such third party credit is the sole
determinant of the rating on such Bond. For purposes of the issue type
concentration requirement described above, California Municipal Bonds and
Municipal Bonds will be classified within one of the following categories:
health care issues (teaching and non-teaching hospitals, public and private),
housing issues (single-and multi-family), educational facilities issues
(public and private schools), student loan issues, resource recovery issues,
transportation issues (mass transit, airport and highway bonds), industrial
revenue/pollution control bond issues, utility issues (including water, sewer
and electricity), general obligation issues, lease obligations/certificates of
participation, escrowed bonds and other issues ("Other Issues") not falling
within one of the aforementioned categories (includes special obligations to
crossover, excise and sales tax revenue, recreation revenue, special
assessment and telephone revenue bonds). In no event shall (a) more than 10%
of Moody's Eligible Assets consist of student loan issues, (b) more than 10%
of Moody's Eligible Assets consist of recovery issues or (c) more than 10% of
Moody's Eligible Assets consist of Other Issues.
 
  Current Moody's guidelines also require that California Municipal Bonds or
Municipal Bonds constituting Moody's Eligible Assets pay interest in cash, be
publicly rated Baa or higher by Moody's or, if not rated by Moody's but rated
by S&P, that they be rated at least BBB by S&P, not have suspended ratings by
Moody's and be part of an issue of California Municipal Bonds or Municipal
Bonds of at least $10,000,000. For purposes of determining the Moody's
Discount Factors applicable to any such S&P-rated California Municipal Bonds
or S&P-rated Municipal Bonds, such California Municipal Bonds or Municipal
Bonds (excluding any short-term Municipal Bonds) will be deemed to have a
Moody's rating that is one full rating category lower than its S&P
 
                                      26
<PAGE>
 
rating. When the Fund sells a California Municipal Bond or Municipal Bond and
agrees to repurchase it at a future date, the Discounted Value of such
Municipal Bond will constitute a Moody's Eligible Asset and the amount the
Fund is required to pay upon repurchase of such bond will count as a liability
for purposes of calculating the AMPS Basic Maintenance Amount. When the Fund
purchases a California Municipal Bond or Municipal Bond and agrees to sell it
at a future date to another party, cash receivable by the Fund thereby will
constitute a Moody's Eligible Asset if the long-term debt of such other party
is rated at least A2 by Moody's and such agreement has a term of 30 days or
less; otherwise the Discounted Value of such Bond will constitute a Moody's
Eligible Asset.
 
  Notwithstanding the foregoing, an asset will not be considered a Moody's
Eligible Asset if it is (i) held in a margin account, (ii) subject to any
material lien, mortgage, pledge, security interest or security agreement of
any kind, (iii) held for the purchase of a security pursuant to a Forward
Commitment or (iv) irrevocably deposited by the Fund for the payment of
dividends or redemption.
 
  For so long as shares of AMPS are rated by Moody's, in managing the Fund's
portfolio, the Investment Adviser will not alter the composition of the Fund's
portfolio if, in the reasonable belief of the Investment Adviser, the effect
of any such alteration would be to cause the Fund to have Moody's Eligible
Assets with an aggregate Discounted Value, as of the immediately preceding
Valuation Date, less than the AMPS Basic Maintenance Amount as of such
Valuation Date; provided, however, that in the event that, as of the
immediately preceding Valuation Date, the aggregate Discounted Value of
Moody's Eligible Assets exceeded the AMPS Basic Maintenance Amount by five
percent or less, the Investment Adviser will not alter the composition of the
Fund's portfolio in a manner reasonably expected to reduce the aggregate
Discounted Value of Moody's Eligible Assets unless the Fund shall have
confirmed that, after giving effect to such alteration, the aggregate
Discounted Value of Moody's Eligible Assets would exceed the AMPS Basic
Maintenance Amount.
 
  For so long as any shares of AMPS are rated by Moody's, the Fund will not
buy or sell financial futures contracts, write, purchase or sell call options
on financial futures contracts or purchase put options on financial futures
contracts or write call options (except covered call options) on portfolio
securities unless it receives written confirmation from Moody's that engaging
in such transactions would not impair the ratings then assigned to the shares
of AMPS by Moody's, except that the Fund may purchase or sell exchange-traded
financial futures contracts based on the Municipal Index or Treasury Bonds,
and purchase, write or sell exchange-traded put options on such financial
futures contracts, and purchase, write or sell exchange-traded call options on
such financial futures contracts (collectively "Moody's Hedging
Transactions"), subject to the following limitations:
 
    (i) the Fund will not engage in any Moody's Hedging Transaction based on
  the Municipal Index (other than Closing Transactions) that would cause the
  Fund at the time of such transaction to own or have sold (A) outstanding
  financial futures contracts based on the Municipal Index exceeding in
  number 10% of the average number of daily traded financial futures
  contracts based on the Municipal Index in the 30 days preceding the time of
  effecting such transaction as reported by The Wall Street Journal or (B)
  outstanding financial futures contracts based on the Municipal Index having
  a Market Value exceeding 50% of the Market Value of all Municipal Bonds
  constituting Moody's Eligible Assets owned by the Fund (other than Moody's
  Eligible Assets already subject to a Moody's Hedging Transaction);
 
    (ii) the Fund will not engage in any Moody's Hedging Transaction based on
  Treasury Bonds (other than Closing Transactions) that would cause the Fund
  at the time of such transaction to own or have sold (A) outstanding
  financial futures contracts based on Treasury Bonds having an aggregate
  Market Value exceeding 20% of the aggregate Market Value of Moody's
  Eligible Assets owned by the Fund and rated Aa by Moody's (or, if not rated
  by Moody's but rated by S&P, rated AAA by S&P) or (B) outstanding financial
  futures contracts based on Treasury Bonds having an aggregate fair market
  value exceeding 40% of the aggregate fair market value of all Municipal
  Bonds constituting Moody's Eligible Assets owned by the Fund (other than
  Moody's Eligible Assets already subject to a Moody's Hedging Transaction)
  and rated Baa or A by Moody's (or, if not rated by Moody's but rated by
  S&P, rated A or AA by S&P) (for purposes of the foregoing clauses (i) and
  (ii), the Fund shall be deemed to own the number of financial futures
  contracts that underlie any outstanding options written by the Fund);
 
 
                                      27
<PAGE>
 
    (iii) the Fund will engage in Closing Transactions to close out any
  outstanding financial futures contract based on the Municipal Index if the
  amount of open interest in the Municipal Index as reported by The Wall
  Street Journal is less than 5,000;
 
    (iv) the Fund will engage in a Closing Transaction to close out any
  outstanding financial futures contract by no later than the fifth Business
  Day of the month in which such contract expires and will engage in a
  Closing Transaction to close out any outstanding option on a financial
  futures contract by no later than the first Business Day of the month in
  which such option expires;
 
    (v) the Fund will engage in Moody's Hedging Transactions only with
  respect to financial futures contracts or options thereon having the next
  settlement date or the settlement date immediately thereafter;
 
    (vi) the Fund will not engage in options and futures transactions for
  leveraging or speculative purposes and will not write any call options or
  sell any financial futures contracts for the purpose of hedging the
  anticipated purchase of an asset prior to completion of such purchase; and
 
    (vii) the Fund will not enter into an option or futures transaction
  unless, after giving effect thereto, the Fund would continue to have
  Moody's Eligible Assets with an aggregate Discounted Value equal to or
  greater than the AMPS Basic Maintenance Amount.
 
  For purposes of determining whether the Fund has Moody's Eligible Assets
with an aggregate Discounted Value that equals or exceeds the AMPS Basic
Maintenance Amount, the Discounted Value of Moody's Eligible Assets that the
Fund is obligated to deliver or receive pursuant to an outstanding futures
contract or option shall be as follows: (i) assets subject to call options
written by the Fund that are either exchange-traded and "readily reversible"
or that expire within 49 days after the date as of which such valuation is
made shall be valued at the lesser of (A) Discounted Value and (B) the
exercise price of the call option written by the Fund; (ii) assets subject to
call options written by the Fund not meeting the requirements of clause (i) of
this sentence shall have no value; (iii) assets subject to put options written
by the Fund shall be valued at the lesser of (A) the exercise price and (B)
the Discounted Value of the subject security; (iv) futures contracts shall be
valued at the lesser of (A) settlement price and (B) the Discounted Value of
the subject security, provided that, if a contract matures within 49 days
after the date as of which such valuation is made, where the Fund is the
seller the contract may be valued at the settlement price and where the Fund
is the buyer the contract may be valued at the Discounted Value of the subject
securities; and (v) where delivery may be made to the Fund with any security
of a class of securities, the Fund shall assume that it will take delivery of
the security with the lowest Discounted Value.
 
  For purposes of determining whether the Fund has Moody's Eligible Assets
with an aggregate Discounted Value that equals or exceeds the AMPS Basic
Maintenance Amount, the following amounts shall be subtracted from the
aggregate Discounted Value of the Moody's Eligible Assets held by the Fund:
(i) 10% of the exercise price of a written call option; (ii) the exercise
price of any written put option; (iii) where the Fund is the seller under a
financial futures contract, 10% of the settlement price of the financial
futures contract; (iv) where the Fund is the purchaser under a financial
futures contract, the settlement price of assets purchased under such
financial futures contract; (v) the settlement price of the underlying
financial futures contract if the Fund writes put options on a financial
futures contract; and (vi) 105% of the fair market value of the underlying
financial futures contracts if the Fund writes call options on a financial
futures contract and does not own the underlying contract.
 
  For so long as any shares of AMPS are rated by Moody's, the Fund will not
enter into any contract to purchase securities for a fixed price at a future
date beyond customary settlement time (other than such contracts that
constitute Moody's Hedging Transactions), except that the Fund may enter into
such contracts to purchase newly-issued securities on the date such securities
are issued ("Forward Commitments"), subject to the following limitations:
 
    (i) the Fund will maintain in a segregated account with its custodian
  cash, cash equivalents or short term, fixed-income securities rated P-1,
  MIG-1 or VMIG-1 by Moody's and maturing prior to the date of the Forward
  Commitment with a fair market value that equals or exceeds the amount of
  the Fund's obligations under any Forward Commitments to which it is from
  time to time a party or long-term, fixed
 
                                      28
<PAGE>
 
  income securities with a Discounted Value that equals or exceeds the amount
  of the Fund's obligations under any Forward Commitment to which it is from
  time to time a party, and
 
    (ii) the Fund will not enter into a Forward Commitment unless, after
  giving effect thereto, the Fund would continue to have Moody's Eligible
  Assets with an aggregate Discounted Value equal to or greater than the AMPS
  Basic Maintenance Amount.
 
  For purposes of determining whether the Fund has Moody's Eligible Assets
with an aggregate Discounted Value that equals or exceeds the AMPS Basic
Maintenance Amount, the Discounted Value of all Forward Commitments to which
the Fund is a party and of all securities deliverable to the Fund pursuant to
such Forward Commitments shall be zero.
 
  For so long as shares of AMPS are rated by S&P or Moody's, the Fund, unless
it has received written confirmation from S&P and/or Moody's, as the case may
be, that such action would not impair the ratings then assigned to the AMPS by
S&P and/or Moody's, as the case may be, will not (i) borrow money except for
the purpose of clearing transactions in portfolio securities (which borrowings
under any circumstances shall be limited to the lesser of $10 million and an
amount equal to 5% of the fair market value of the Fund's assets at the time
of such borrowings and which borrowings shall be repaid within 60 days and not
be extended or renewed and shall not cause the aggregate Discounted Value of
Moody's Eligible Assets and S&P Eligible Assets to be less than the AMPS Basic
Maintenance Amount), (ii) engage in short sales of securities, (iii) lend any
securities, (iv) issue any class or series of stock ranking prior to or on a
parity with the AMPS with respect to the payment of dividends or the
distribution of assets upon dissolution, liquidation or winding up of the
Fund, (v) reissue any AMPS previously purchased or redeemed by the Fund, (vi)
merge or consolidate into or with any other corporation or entity, (vii)
change the Fund's pricing service or (vii) engage in reverse repurchase
agreements.
 
OPTIONS AND FUTURES TRANSACTIONS
 
  The Fund may hedge all or a portion of its portfolio investments against
fluctuations in interest rates through the use of options and certain
financial futures contracts and options thereon. While the Fund's use of
hedging strategies is intended to reduce the volatility of the net asset value
of the Common Stock, the net asset value of the Common Stock will fluctuate.
There can be no assurance that the Fund's hedging transactions will be
effective. For so long as the AMPS are rated by Moody's and S&P, the Fund's
use of options and financial futures contracts will be subject to the
limitations described under "Investment Objective and Policies--Rating Agency
Guidelines." Furthermore, the Fund will only engage in hedging activities from
time to time and may not necessarily be engaging in hedging activities when
movements in interest rates occur.
 
  Certain Federal income tax requirements may limit the Fund's ability to
engage in hedging transactions. Gains from transactions in options and futures
contracts distributed to shareholders will be taxable as ordinary income or,
in certain circumstances, as long-term capital gains to shareholders. See
"Taxes--Tax Treatment of Options and Futures Transactions." In addition, in
order to obtain ratings of the Preferred Stock from one or more nationally
recognized statistical rating organizations, the Fund may be required to limit
its use of hedging techniques in accordance with the specified guidelines of
such rating organizations.
 
  The following is a description of the options and futures transactions in
which the Fund may engage, limitations on the use of such transactions and
risks associated therewith. The investment policies with respect to the
hedging transactions of the Fund are not fundamental policies and may be
modified by the Board of Directors of the Fund without the approval of the
Fund's shareholders.
 
  Writing Covered Call Options. The Fund may write (i.e., sell) covered call
options with respect to California Municipal Bonds and Municipal Bonds it
owns, thereby giving the holder of the option the right to buy the underlying
security covered by the option from the Fund at the stated exercise price
until the option expires. The Fund writes only covered call options, which
means that so long as the Fund is obligated as the
 
                                      29
<PAGE>
 
writer of a call option, it will own the underlying securities subject to the
option. The Fund may not write covered call options on underlying securities
in an amount exceeding 15% of the market value of its total assets.
 
  The Fund will receive a premium from writing a call option, which increases
the Fund's return on the underlying security in the event the option expires
unexercised or is closed out at a profit. By writing a call, the Fund limits
its opportunity to profit from an increase in the market value of the
underlying security above the exercise price of the option for as long as the
Fund's obligation as a writer continues. Covered call options serve as a
partial hedge against a decline in the price of the underlying security. The
Fund may engage in closing transactions in order to terminate outstanding
options that it has written.
 
  Purchase of Options. The Fund may purchase put options in connection with
its hedging activities. By buying a put the Fund has a right to sell the
underlying security at the exercise price, thus limiting the Fund's risk of
loss through a decline in the market value of the security until the put
expires. The amount of any appreciation in the value of the underlying
security will be partially offset by the amount of the premium paid for the
put option and any related transaction costs. Prior to its expiration, a put
option may be sold in a closing sale transaction; profit or loss from the sale
will depend on whether the amount received is more or less than the premium
paid for the put option plus the related transaction costs. A closing sale
transaction cancels out the Fund's position as the purchaser of an option by
means of an offsetting sale of an identical option prior to the expiration of
the option it has purchased. In certain circumstances, the Fund may purchase
call options on securities held in its portfolio on which it has written call
options or on securities that it intends to purchase. The Fund will not
purchase options on securities if, as a result of such purchase, the aggregate
cost of all outstanding options on securities held by the Fund would exceed 5%
of the market value of the Fund's total assets.
 
  Financial Futures Contracts and Options. The Fund is authorized to purchase
and sell certain financial futures contracts and options thereon solely for
the purpose of hedging its investments in California Municipal Bonds and
Municipal Bonds against declines in value and hedging against increases in the
cost of securities it intends to purchase. A financial futures contract
obligates the seller of a contract to deliver and the purchaser of a contract
to take delivery of the type of financial instrument covered by the contract
or, in the case of index-based financial futures contracts, to make and accept
a cash settlement, at a specific future time for a specified price. A sale of
financial futures contracts may provide a hedge against a decline in the value
of portfolio securities because such depreciation may be offset, in whole or
in part, by an increase in the value of the position in the financial futures
contracts. A purchase of financial futures contracts may provide a hedge
against an increase in the cost of securities intended to be purchased because
such appreciation may be offset, in whole or in part, by an increase in the
value of the position in the financial futures contracts.
 
  The purchase or sale of a financial futures contract differs from the
purchase or sale of a security in that no price or premium is paid or
received. Instead, an amount of cash or securities acceptable to the broker
equal to approximately 5% of the contract amount must be deposited with the
broker. This amount is known as initial margin. Subsequent payments to and
from the broker, called variation margin, are made on a daily basis as the
price of the financial futures contract fluctuates making the long and short
positions in the financial futures contract more or less valuable.
 
  The Fund may purchase and sell financial futures contracts based on The Bond
Buyer Municipal Bond Index, a price-weighted measure of the market value of 40
large tax-exempt issues, and purchase and sell put and call options on such
financial futures contracts for the purpose of hedging California Municipal
Bonds and Municipal Bonds which the Fund holds or anticipates purchasing
against adverse changes in interest rates. The Fund also may purchase and sell
financial futures contracts on U.S. Government securities and purchase and
sell put and call options on such financial futures contracts for such hedging
purposes. With respect to U.S. Government securities, currently there are
financial futures contracts based on long-term U.S. Treasury bonds, U.S.
Treasury notes, GNMA Certificates and three-month U.S. Treasury bills.
 
  Subject to policies adopted by the Board of Directors, the Fund also may
engage in transactions in other financial futures contracts, such as financial
futures contracts on other municipal bond indices that may become
 
                                      30
<PAGE>
 
available, if the Investment Adviser should determine that there is normally
sufficient correlation between the prices of such financial futures contracts
and the California Municipal Bonds and Municipal Bonds in which the Fund
invests to make such hedging appropriate.
 
  Over-The-Counter Options. The Fund may engage in options and futures
transactions on exchanges and in the over-the-counter markets ("OTC options").
In general, exchange-traded contracts are third-party contracts (i.e.,
performance of the parties' obligations is guaranteed by an exchange or
clearing corporation) with standardized strike prices and expiration dates.
OTC option transactions are two-party contracts with prices and terms
negotiated by the buyer and seller. See "Restrictions on OTC Options" below
for information as to restrictions on the use of OTC options.
 
  Restrictions on OTC Options. The Fund will engage in transactions in OTC
options only with banks or dealers that have capital of at least $50 million
or whose obligations are guaranteed by an entity having capital of at least
$50 million. Certain OTC options and assets used to cover OTC options written
by the Fund may be considered to be illiquid. The illiquidity of such options
or assets may prevent a successful sale of such options or assets, result in a
delay of sale, or reduce the amount of proceeds that might otherwise be
realized.
 
  Risk Factors in Options and Futures Transactions. Utilization of futures
transactions involves the risk of imperfect correlation in movements in the
price of financial futures contracts and movements in the price of the
security that is the subject of the hedge. If the price of the financial
futures contract moves more or less than the price of the security that is the
subject of the hedge, the Fund will experience a gain or loss that will not be
completely offset by movements in the price of such security. There is a risk
of imperfect correlation where the securities underlying financial futures
contracts have different maturities, ratings, geographic compositions or other
characteristics than the security being hedged. In addition, the correlation
may be affected by additions to or deletions from the index that serves as a
basis for a financial futures contract. Finally, in the case of financial
futures contracts on U.S. Government securities and options on such financial
futures contracts, the anticipated correlation of price movements between the
U.S. Government securities underlying the futures or options and California
Municipal Bonds and Municipal Bonds may be adversely affected by economic,
political, legislative or other developments which have a disparate impact on
the respective markets for such securities.
 
  Under regulations of the Commodity Futures Trading Commission (the "CFTC"),
the futures trading activities described herein will not result in the Fund
being deemed a "commodity pool," as defined under such regulations, provided
that the Fund adheres to certain restrictions. In particular, the Fund may
purchase and sell financial futures contracts and options thereon (i) for bona
fide hedging purposes, without regard to the percentage of the Fund's assets
committed to margin and option premiums, and (ii) for non-hedging purposes if,
immediately thereafter, the sum of the amount of initial margin deposits on
the Fund's existing futures positions and option premiums entered into for
non-hedging purposes do not exceed 5% of the market value of the liquidation
value of the Fund's portfolio, after taking into account unrealized profits
and unrealized losses on any such transactions. Margin deposits may consist of
cash or securities acceptable to the broker and the relevant contract market.
 
  When the Fund purchases a financial futures contract, or writes a put option
or purchases a call option thereon, it will maintain an amount of cash, cash
equivalents (e.g., commercial paper and daily tender adjustable notes) or
liquid securities in a segregated account with the Fund's custodian so that
the amount so segregated plus the amount of initial and variation margin held
in the account of its broker equals the market value of the financial futures
contract, thereby ensuring that the use of such financial futures contract is
unleveraged.
 
  Although certain risks are involved in options and futures transactions, the
Investment Adviser believes that, because the Fund will engage in options and
futures transactions only for hedging purposes, the options and futures
portfolio strategies of the Fund will not subject the Fund to certain risks
frequently associated with speculation in options and futures transactions.
See "Taxes--Tax Treatment of Options and Futures Transactions."
 
                                      31
<PAGE>
 
  The volume of trading in the exchange markets with respect to California
Municipal Bond or Municipal Bond options may be limited, and it is impossible
to predict the amount of trading interest that may exist in such options. In
addition, there can be no assurance that viable exchange markets will continue
to be available.
 
  The Fund intends to enter into options and futures transactions, on an
exchange or in the over-the-counter market, only if there appears to be a
liquid secondary market for such options or futures. There can be no
assurance, however, that a liquid secondary market will exist at any specific
time. Thus, it may not be possible to close an options or futures transaction.
The inability to close options and futures positions also could have an
adverse impact on the Fund's ability to effectively hedge its portfolio. There
is also the risk of loss by the Fund of margin deposits or collateral in the
event of bankruptcy of a broker with which the Fund has an open position in an
option or financial futures contract.
 
  The liquidity of a secondary market in a financial futures contract may be
adversely affected by "daily price fluctuation limits" established by
commodity exchanges that limit the amount of fluctuation in a financial
futures contract price during a single trading day. Once the daily limit has
been reached in the contract, no trades may be entered into at a price beyond
the limit, thus preventing the liquidation of open futures positions. Prices
have in the past reached or exceeded the daily limit on a number of
consecutive trading days.
 
  If it is not possible to close a financial futures position entered into by
the Fund, the Fund would continue to be required to make daily cash payments
of variation margin in the event of adverse price movements. In such a
situation, if the Fund has insufficient cash, it may have to sell portfolio
securities to meet daily variation margin requirements at a time when it may
be disadvantageous to do so.
 
  The successful use of these transactions also depends on the ability of the
Investment Adviser to forecast correctly the direction and extent of interest
rate movements within a given time frame. To the extent these rates remain
stable during the period in which a financial futures contract is held by the
Fund or move in a direction opposite to that anticipated, the Fund may realize
a loss on the hedging transaction that is not fully or partially offset by an
increase in the value of portfolio securities. As a result, the Fund's total
return for such period may be less than if it had not engaged in the hedging
transaction. Furthermore, the Fund will only engage in hedging transactions
from time to time and may not necessarily be engaging in hedging transactions
when movements in interest rates occur.
 
                              DESCRIPTION OF AMPS
 
  Certain of the capitalized terms used herein are defined in the Glossary
that appears at the back of this Prospectus.
 
  The AMPS of each series will be shares of Preferred Stock that entitle their
holders to receive dividends when, as and if declared by the Board of
Directors, out of funds legally available therefor, at a rate per annum that
may vary for the successive Dividend Periods for each such series. After the
Initial Dividend Period, each Subsequent Dividend Period for each series of
AMPS generally will be a 7-Day Dividend Period; provided, however, that prior
to any Auction, the Fund may elect, subject to certain limitations described
herein, upon giving notice to holders thereof, a Special Dividend Period. The
Applicable Rate for a particular Dividend Period will be determined by an
Auction conducted on the Business Day before the start of such Dividend
Period. Beneficial Owners and Potential Beneficial Owners of shares of AMPS
may participate in Auctions therefor, although, except in the case of a
Special Dividend Period, Beneficial Owners desiring to continue to hold all of
their shares of AMPS regardless of the Applicable Rate resulting from Auctions
need not participate. For an explanation of Auctions and the method of
determining the Applicable Rate, see "Description of AMPS--The Auction."
 
                                      32
<PAGE>
 
  Except as otherwise required by law or unless there is no Securities
Depository, all outstanding shares of AMPS of each series will be represented
by one or more certificates registered in the name of the nominee of the
Securities Depository (initially expected to be Cede), and no person acquiring
shares of AMPS will be entitled to receive a certificate representing such
shares. See Appendix D (Auction Procedures). As a result, the nominee of the
Securities Depository is expected to be the sole holder of record of the
shares of AMPS. Accordingly, each purchaser of AMPS must rely on (i) the
procedures of the Securities Depository and, if such purchaser is not a member
of the Securities Depository, such purchaser's Agent Member, to receive
dividends, distributions and notices and to exercise voting rights (if and
when applicable) and (ii) the records of the Securities Depository and, if
such purchaser is not a member of the Securities Depository, such purchaser's
Agent Member, to evidence its beneficial ownership of shares of AMPS.
 
  When issued and sold, the shares of AMPS will have a liquidation preference
of $25,000 per share plus an amount equal to accumulated but unpaid dividends
(whether or not earned or declared) and will be fully paid and non-assessable.
See "Description of AMPS--Liquidation Rights." The shares of AMPS will not be
convertible into shares of Common Stock or other capital stock of the Fund,
and the holders thereof will have no preemptive rights. The shares of AMPS of
each series will not be subject to any sinking fund but will be subject to
redemption at the option of the Fund at the Optional Redemption Price on any
Dividend Payment Date for such series (except during the Initial Dividend
Period and during a Non-Call Period) and, under certain circumstances, will be
subject to mandatory redemption by the Fund at the Mandatory Redemption Price
stated herein. See "Description of AMPS--Redemption."
 
  In addition to serving as the Auction Agent in connection with the Auction
Procedures described below, IBJ Schroder Bank & Trust Company will be the
transfer agent, registrar, dividend disbursing agent and redemption agent for
the shares of AMPS. The Auction Agent, however, will serve merely as the agent
of the Fund, acting in accordance with the Fund's instructions, and will not
be responsible for any evaluation or verification of any matters certified to
it.
 
  Except in an Auction, the Fund will have the right (to the extent permitted
by applicable law) to purchase or otherwise acquire any shares of AMPS so long
as the Fund is current in the payment of dividends on AMPS and on any other
capital stock of the Fund ranking on a parity with the AMPS with respect to
the payment of dividends or upon liquidation.
 
  The following is a brief description of the terms of the shares of AMPS.
This description does not purport to be complete and is subject to and
qualified in its entirety by reference to the Fund's Charter and Articles
Supplementary, including the provisions thereof establishing the AMPS. The
Fund's Charter and the form of Articles Supplementary establishing the terms
of the AMPS have been filed as exhibits to the Registration Statement of which
this Prospectus is a part.
 
THE AUCTION
 
  General. Holders of the shares of AMPS of each series will be entitled to
receive cumulative cash dividends on their shares when, as and if declared by
the Board of Directors of the Fund, out of funds legally available therefor,
on the Initial Dividend Payment Date with respect to the Initial Dividend
Period and, thereafter, on each Dividend Payment Date with respect to a
Subsequent Dividend Period (generally a period of seven days subject to
certain exceptions set forth under "Description of AMPS--Dividends--General")
at the rate per annum equal to the Applicable Rate for each such Dividend
Period.
 
  The provisions of the Articles Supplementary establishing the terms of the
shares of AMPS offered hereby will provide that the Applicable Rate for each
series of AMPS for each Dividend Period after the Initial Dividend Period
therefor will be equal to the rate per annum that the Auction Agent advises
has resulted on the Business Day preceding the first day of such Dividend
Period due to implementation of the auction procedures set forth in the
Articles Supplementary (the "Auction Procedures") in which persons determine
to hold or offer to purchase or sell shares of AMPS of such series. The
Auction Procedures are attached as Appendix D to this Prospectus.
 
                                      33
<PAGE>
 
Each periodic operation of such procedures with respect to the shares of AMPS
is referred to hereinafter as an "Auction." If, however, the Fund should fail
to pay or duly provide for the full amount of any dividend on shares of AMPS
of any series or the redemption price of shares of AMPS of such series called
for redemption, the Applicable Rate for shares of AMPS will be determined as
set forth under "Description of AMPS--Dividends--Determination of Dividend
Rate."
 
  Auction Agent Agreement. The Fund will enter into an agreement (the "Auction
Agent Agreement") with IBJ Schroder Bank & Trust Company (together with any
successor bank or trust company or other entity entering into a similar
agreement with this Fund, the "Auction Agent"), which provides, among other
things, that the Auction Agent will follow the Auction Procedures for the
purpose of determining the Applicable Rate for the AMPS. The Fund will pay the
Auction Agent compensation for its services under the Auction Agent Agreement.
 
  The Auction Agent will act as agent for the Fund in connection with
Auctions. In the absence of bad faith or negligence on its part, the Auction
Agent will not be liable for any action taken, suffered or omitted, or for any
error of judgment made, by it in the performance of its duties under the
Auction Agent Agreement, and will not be liable for any error of judgment made
in good faith unless the Auction Agent shall have been negligent in
ascertaining the pertinent facts. Pursuant to the Auction Agent Agreement, the
Fund is required to indemnify the Auction Agent for certain losses and
liabilities incurred by the Auction Agent without negligence or bad faith on
its part in connection with the performance of its duties under such
agreement.
 
  The Auction Agent may terminate the Auction Agent Agreement upon notice to
the Fund, which termination may be no earlier than 60 days following delivery
of such notice. If the Auction Agent resigns, the Fund will use its best
efforts to enter into an agreement with a successor Auction Agent containing
substantially the same terms and conditions as the Auction Agent Agreement.
The Fund may terminate the Auction Agent Agreement, provided that prior to
such termination the Fund shall have entered into such an agreement with
respect thereto with a successor Auction Agent.
 
  Broker-Dealer Agreements. The Auctions require the participation of one or
more broker-dealers. The Auction Agent will enter into agreements with Merrill
Lynch, Goldman, Sachs & Co., Lehman Government Securities Incorporated and
Salomon Smith Barney Inc. and may enter into similar agreements (collectively,
the "Broker-Dealer Agreements") with one or more other broker-dealers
(collectively, the "Broker-Dealers") selected by the Fund, which provide for
the participation of such Broker-Dealers in Auctions. Merrill Lynch is an
affiliate of the Investment Adviser in that they share a common parent, ML &
Co. A Broker-Dealer Agreement may be terminated by the Auction Agent or a
Broker-Dealer on five days' notice to the other party, provided that the
Broker-Dealer Agreement with Merrill Lynch may not be terminated without the
prior written consent of the Fund, which consent may not be unreasonably
withheld.
 
  Securities Depository. The Depository Trust Company initially will act as
the Securities Depository for the Agent Members with respect to the shares of
AMPS of each series. One or more registered certificates for all of the shares
of each series of AMPS initially will be registered in the name of Cede, as
nominee of the Securities Depository. The certificate will bear a legend to
the effect that such certificate is issued subject to the provisions
restricting transfers of shares of AMPS of the series to which it relates
contained in the Articles Supplementary. Cede initially will be the holder of
record of all shares of AMPS, and Beneficial Owners will not be entitled to
receive certificates representing their ownership interest in such shares. See
Appendix D (Auction Procedures). The Securities Depository will maintain lists
of its participants and will maintain the positions (ownership interests) of
shares of AMPS held by each Agent Member, whether as the Beneficial Owner
thereof for its own account or as nominee for the Beneficial Owner thereof.
Payments made by the Fund to holders of AMPS will be duly made by making
payments to the nominee of the Securities Depository.
 
  Auction Procedures. The following is a brief summary of the procedures to be
used in conducting Auctions. Separate auctions will be conducted for each
series of AMPS. Accordingly, as used in the following brief summary, unless
the context otherwise requires, "AMPS" means the series of AMPS subject to the
related Auction and "Beneficial Owners," "Potential Beneficial Owners,"
"Existing Holders" and "Potential Holders" mean
 
                                      34
<PAGE>
 
Beneficial Owners, Potential Beneficial Owners, Existing Holders and Potential
Holders of such series, respectively. This summary is qualified by reference
to the Auction procedures set forth in Appendix D hereto. The Settlement
Procedures to be used with respect to Auctions are set forth in Appendix C
hereto.
 
  Auction Date; Advance Notice of Allocation of Taxable Income; Inclusion of
Taxable Income in Dividends. An Auction to determine the Applicable Rate for
each series of AMPS offered hereby for each Dividend Period for such series
(other than the Initial Dividend Period therefor) will be held on the first
Business Day (as hereinafter defined) preceding the first day of such Dividend
Period, which first day is also the Dividend Payment Date for the preceding
Dividend Period (the date of each Auction being referred to herein as an
"Auction Date"). "Business Day" means a day on which the New York Stock
Exchange is open for trading and which is not a Saturday, Sunday or other day
on which banks in The City of New York are authorized or obligated by law to
close. Auctions for shares of Series A AMPS for Dividend Periods after the
Initial Dividend Period normally will be held every     after the preceding
Dividend Payment Date, and each subsequent Dividend Period normally will begin
on the following      (also a Dividend Payment Date). Auctions for shares of
Series B AMPS for Dividend Periods after the Initial Dividend Period normally
will be held every     after the preceding Dividend Payment Date, and each
subsequent Dividend Period normally will begin on the following     (also a
Dividend Payment Date). The Auction Date and the first day of the related
Dividend Period (both of which must be Business Days) need not be consecutive
calendar days. For example, in most cases, if the     that normally would be
an Auction Date for Series A AMPS is not a Business Day, then such Auction
Date will be the preceding     and the first day of the related Dividend
Period will continue to be the following    . See "Description of AMPS--
Dividends" for information concerning the circumstances under which a Dividend
Payment Date may fall on a date other than the days specified above, which may
affect the Auction Date.
 
  Except as noted below, whenever the Fund intends to include any net capital
gains or other income subject to regular Federal income taxes in any dividend
on shares of AMPS, the Fund will notify the Auction Agent of the amount to be
so included at least five Business Days prior to the Auction Date on which the
Applicable Rate for such dividend is to be established. Whenever the Auction
Agent receives such notice from the Fund, in turn it will notify each Broker-
Dealer, who, on or prior to such Auction Date, in accordance with its Broker-
Dealer Agreement, will notify its customers who are Beneficial Owners and
Potential Beneficial Owners believed to be interested in submitting an Order
in the Auction to be held on such Auction Date. The Fund also may include such
income in a dividend on shares of AMPS without giving advance notice thereof
if it increases the dividend by an additional amount calculated as if such
income were a Retroactive Taxable Allocation and the additional amount were an
Additional Dividend; provided that the Fund will notify the Auction Agent of
the additional amounts to be included in such dividend at least five Business
Days prior to the applicable Dividend Payment Date. See "Description of AMPS--
Dividends--Additional Dividends."
 
  Orders by Beneficial Owners, Potential Beneficial Owners, Existing Holders
and Potential Holders. On or prior to each Auction Date:
 
    (a) each Beneficial Owner may submit to its Broker-Dealer by telephone a:
 
      (i) Hold Order--indicating the number of outstanding shares, if any,
    of AMPS that such Beneficial Owner desires to continue to hold without
    regard to the Applicable Rate for the next Dividend Period for such
    shares;
 
      (ii) Bid--indicating the number of outstanding shares, if any, of
    AMPS that such Beneficial Owner desires to continue to hold, provided
    that the Applicable Rate for the next Dividend Period for such shares
    is not less than the rate per annum then specified by such Beneficial
    Owner; and/or
 
      (iii) Sell Order--indicating the number of outstanding shares, if
    any, of AMPS that such Beneficial Owner offers to sell without regard
    to the Applicable Rate for the next Dividend Period for such shares;
    and
 
                                      35
<PAGE>
 
    (b) Broker-Dealers will contact customers who are Potential Beneficial
  Owners of shares of AMPS to determine whether such Potential Beneficial
  Owners desire to submit Bids indicating the number of shares of AMPS which
  they offer to purchase provided that the Applicable Rate for the next
  Dividend Period for such shares is not less than the rates per annum
  specified in such Bids.
 
  The communication by a Beneficial Owner or Potential Beneficial Owner to a
Broker-Dealer and the communication by a Broker-Dealer, whether or not acting
for its own account, to the Auction Agent of the foregoing information is
hereinafter referred to as an "Order" and collectively as "Orders." A
Beneficial Owner or a Potential Beneficial Owner placing an Order, including a
Broker-Dealer acting in such capacity for its own account, is hereinafter
referred to as a "Bidder" and collectively as "Bidders." Any Order submitted
by a Beneficial Owner or a Potential Beneficial Owner to its Broker-Dealer, or
by a Broker-Dealer to the Auction Agent, prior to the Submission Deadline on
any Auction Date shall be irrevocable.
 
  In an Auction, a Beneficial Owner may submit different types of Orders with
respect to shares of AMPS then held by such Beneficial Owner, as well as Bids
for additional shares of AMPS. For information concerning the priority given
to different types of Orders placed by Beneficial Owners, see "Submission of
Orders by Broker-Dealers to Auction Agent" below.
 
  The Maximum Applicable Rate for shares of AMPS will be the Applicable
Percentage of the Reference Rate. The Auction Agent will round each applicable
Maximum Applicable Rate to the nearest one-thousandth (0.001) of one percent
per annum, with any such number ending in five ten-thousandths of one percent
being rounded upwards to the nearest one-thousandth (0.001) of one percent.
The Auction Agent will not round the applicable Reference Rate as part of its
calculation of the Maximum Applicable Rate.
 
  The Maximum Applicable Rate for shares of AMPS will depend on the credit
rating or ratings assigned to such shares. The Applicable Percentage will be
determined based on (i) the lower of the credit rating or ratings assigned on
such date to such shares by Moody's and S&P (or if Moody's or S&P or both
shall not make such rating available, the equivalent of either or both of such
ratings by a Substitute Rating Agency or two Substitute Rating Agencies or, in
the event that only one such rating shall be available, such rating) and (ii)
whether the Fund has provided notification to the Auction Agent prior to the
Auction establishing the Applicable Rate for any dividend that net capital
gains or other taxable income will be included in such dividend on shares of
AMPS as follows:
 
<TABLE>
<CAPTION>
                                               APPLICABLE             APPLICABLE
            CREDIT RATINGS                   PERCENTAGE OF          PERCENTAGE OF
   -----------------------------------      REFERENCE RATE--       REFERENCE RATE--
       MOODY'S               S&P            NO NOTIFICATION          NOTIFICATION
   ----------------     -------------       ----------------       ----------------
   <S>                  <C>                 <C>                    <C>
   "aa3" or higher      AA- or higher             110%                   150%
     "a3" to "a1"         A- to A+                125%                   160%
   "baa3" to "baa1"     BBB- to BBB+              150%                   250%
     Below "baa3"        Below BBB-               200%                   275%
</TABLE>
 
  There is no minimum Applicable Rate in respect of any Dividend Period.
 
  The Fund will take all reasonable action necessary to enable S&P and Moody's
to provide a rating for the AMPS. If either S&P or Moody's shall not make such
a rating available, or neither S&P nor Moody's shall make such a rating
available, the Underwriter or its affiliates and successors, after
consultation with the Fund, will select another nationally recognized
statistical rating organization (a "Substitute Rating Agency") or two other
nationally recognized statistical rating organizations ("Substitute Rating
Agencies") to act as a Substitute Rating Agency or Substitute Rating Agencies,
as the case may be.
 
  Any Bid by a Beneficial Owner specifying a rate per annum higher than the
Maximum Applicable Rate will be treated as a Sell Order, and any Bid by a
Potential Beneficial Owner specifying a rate per annum higher than the Maximum
Applicable Rate will not be considered. See "Determination of Sufficient
Clearing Bids, Winning Bid Rate and Applicable Rate" and "Acceptance and
Rejection of Submitted Bids and Submitted Sell Orders and Allocation of
Shares."
 
                                      36
<PAGE>
 
  Neither the Fund nor the Auction Agent will be responsible for a Broker-
Dealer's failure to comply with the foregoing.
 
  A Broker-Dealer also may hold AMPS in its own account as a Beneficial Owner.
A Broker-Dealer thus may submit Orders to the Auction Agent as a Beneficial
Owner or a Potential Beneficial Owner and therefore participate in an Auction
as an Existing Holder or Potential Holder on behalf of both itself and its
customers. Any Order placed with the Auction Agent by a Broker-Dealer as or on
behalf of a Beneficial Owner or a Potential Beneficial Owner will be treated
in the same manner as an Order placed with a Broker-Dealer by a Beneficial
Owner or a Potential Beneficial Owner. Similarly, any failure by a Broker-
Dealer to submit to the Auction Agent an Order in respect of any AMPS held by
it or its customers who are Beneficial Owners will be treated in the same
manner as a Beneficial Owner's failure to submit to its Broker-Dealer an Order
in respect of AMPS held by it, as described in the next paragraph. Inasmuch as
a Broker-Dealer participates in an Auction as an Existing Holder or a
Potential Holder only to represent the interests of a Beneficial Owner or
Potential Beneficial Owner, whether it be its customers or itself, all
discussion herein relating to the consequences of an Auction for Existing
Holders and Potential Holders also applies to the underlying beneficial
ownership interests represented thereby. For information concerning the
priority given to different types of Orders placed by Existing Holders, see
"Submission of Orders by Broker-Dealers to Auction Agent." Each purchase or
sale in an Auction will be settled on the Business Day next succeeding the
Auction Date at a price per share equal to $25,000. See "Notification of
Results; Settlement."
 
  If one or more Orders covering in the aggregate all of the outstanding
shares of AMPS held by a Beneficial Owner are not submitted to the Auction
Agent prior to the Submission Deadline, either because a Broker-Dealer failed
to contact such Beneficial Owner or otherwise, the Auction Agent shall deem a
Hold Order (in the case of an Auction relating to a Dividend Period which is
not Special Dividend Period) and a Sell Order (in the case of an Auction
relating to a Special Dividend Period) to have been submitted on behalf of
such Beneficial Owner covering the number of outstanding shares of AMPS held
by such Beneficial Owner and not subject to Orders submitted to the Auction
Agent.
 
  If all of the outstanding shares of AMPS are subject to Submitted Hold
Orders, the Dividend Period next succeeding the Auction automatically shall be
the same length as the immediately preceding Dividend Period, and the
Applicable Rate for the next Dividend Period for all shares of AMPS will be
40% of the Reference Rate on the date of the applicable Auction (or 60% of
such rate if the Fund has provided notification to the Auction Agent prior to
the Auction establishing the Applicable Rate for any dividend that net capital
gains or other taxable income will be included in such dividend on shares of
AMPS).
 
  For the purposes of an Auction, shares of AMPS for which the Fund shall have
given notice of redemption and deposited moneys therefor with the Auction
Agent in trust or segregated in an account at the Fund's custodian bank for
the benefit of the Auction Agent, as set forth under "Description of AMPS--
Redemption," will not be considered as outstanding and will not be included in
such Auction. Pursuant to the Articles Supplementary of the Fund, the Fund
will be prohibited from reissuing and its affiliates (other than the
Underwriter) will be prohibited from transferring (other than to the Fund) any
shares of AMPS they may acquire. Neither the Fund nor any affiliate of the
Fund (other than the Underwriter) may submit an Order in any Auction, except
that an affiliate of the Fund that is a Broker-Dealer may submit an Order.
 
  Submission of Orders by Broker-Dealers to Auction Agent. Prior to 1:00 p.m.,
New York City time, on each Auction Date, or such other time on the Auction
Date as may be specified by the Auction Agent (the "Submission Deadline"),
each Broker-Dealer will submit to the Auction Agent in writing all Orders
obtained by it for the Auction to be conducted on such Auction Date,
designating itself (unless otherwise permitted by the Fund) as the Existing
Holder or Potential Holder in respect of the shares of AMPS subject to such
Orders. Any Order submitted by a Beneficial Owner or a Potential Beneficial
Owner to its Broker-Dealer, or by a Broker-Dealer to the Auction Agent, prior
to the Submission Deadline on any Auction Date, shall be irrevocable.
 
 
                                      37
<PAGE>
 
  If the rate per annum specified in any Bid contains more than three figures
to the right of the decimal point, the Auction Agent will round such rate per
annum up to the next highest one-thousandth (.001) of 1%.
 
  If one or more Orders of an Existing Holder are submitted to the Auction
Agent and such Orders cover in the aggregate more than the number of
outstanding shares of AMPS held by such Existing Holder, such Orders will be
considered valid in the following order of priority:
 
    (i) any Hold Order will be considered valid up to and including the
  number of outstanding shares of AMPS held by such Existing Holder, provided
  that if more than one Hold Order is submitted by such Existing Holder and
  the number of shares of AMPS subject to such Hold Orders exceeds the number
  of outstanding shares of AMPS held by such Existing Holder, the number of
  shares of AMPS subject to each of such Hold Orders will be reduced pro rata
  so that such Hold Orders, in the aggregate, will cover exactly the number
  of outstanding shares of AMPS held by such Existing Holder;
 
    (ii) any Bids will be considered valid, in the ascending order of their
  respective rates per annum if more than one Bid is submitted by such
  Existing Holder, up to and including the excess of the number of
  outstanding shares of AMPS held by such Existing Holder over the number of
  outstanding shares of AMPS subject to any Hold Order referred to in clause
  (i) above (and if more than one Bid submitted by such Existing Holder
  specifies the same rate per annum and together they cover more than the
  remaining number of shares that can be the subject of valid Bids after
  application of clause (i) above and of the foregoing portion of this clause
  (ii) to any Bid or Bids specifying a lower rate or rates per annum, the
  number of shares subject to each of such Bids will be reduced pro rata so
  that such Bids, in the aggregate, cover exactly such remaining number of
  outstanding shares); and the number of outstanding shares, if any, subject
  to Bids not valid under this clause (ii) shall be treated as the subject of
  a Bid by a Potential Holder; and
 
    (iii) any Sell Order will be considered valid up to and including the
  excess of the number of outstanding shares of AMPS held by such Existing
  Holder over the sum of the number of shares of AMPS subject to Hold Orders
  referred to in clause (i) above and the number of shares of AMPS subject to
  valid Bids by such Existing Holder referred to in clause (ii) above;
  provided that, if more than one Sell Order is submitted by any Existing
  Holder and the number of shares of AMPS subject to such Sell Orders is
  greater than such excess, the number of shares of AMPS subject to each of
  such Sell Orders will be reduced pro rata so that such Sell Orders, in the
  aggregate, will cover exactly the number of shares of AMPS equal to such
  excess.
 
  If more than one Bid of any Potential Holder is submitted in any Auction,
each Bid submitted in such Auction will be considered a separate Bid with the
rate per annum and number of shares of AMPS therein specified.
 
  Determination of Sufficient Clearing Bids, Winning Bid Rate and Applicable
Rate. Not earlier than the Submission Deadline for each Auction, the Auction
Agent will assemble all Orders submitted or deemed submitted to it by the
Broker-Dealers (each such "Hold Order," "Bid" or "Sell Order" as submitted or
deemed submitted by a Broker-Dealer hereinafter being referred to as a
"Submitted Hold Order," a "Submitted Bid" or a "Submitted Sell Order," as the
case may be, or as a "Submitted Order") and will determine the excess of the
number of outstanding shares of AMPS over the number of outstanding shares of
AMPS subject to Submitted Hold Orders (such excess being referred to as the
"Available AMPS") and whether Sufficient Clearing Bids have been made in such
Auction. Sufficient Clearing Bids will have been made if the number of
outstanding shares of AMPS that are the subject of Submitted Bids of Potential
Holders with rates per annum not higher than the Maximum Applicable Rate
equals or exceeds the number of outstanding shares that are the subject of
Submitted Sell Orders (including the number of shares subject to Bids of
Existing Holders specifying rates per annum higher than the Maximum Applicable
Rate).
 
  If Sufficient Clearing Bids have been made, the Auction Agent will determine
the lowest rate per annum specified in the Submitted Bids (the "Winning Bid
Rate") which would result in the number of shares subject to Submitted Bids
specifying such rate per annum or a lower rate per annum being at least equal
to the Available
 
                                      38
<PAGE>
 
AMPS. If Sufficient Clearing Bids have been made, the Winning Bid Rate will be
the Applicable Rate for the next Dividend Period for all shares of AMPS then
outstanding.
 
  If Sufficient Clearing Bids have not been made (other than because all
outstanding shares of AMPS are the subject of Submitted Hold Orders), the
Dividend Period next following the Auction automatically will be a 7-Day
Dividend Period, and the Applicable Rate for such Dividend Period will be
equal to the Maximum Applicable Rate. If Sufficient Clearing Bids have not
been made, Beneficial Owners that have Submitted Sell Orders will not be able
to sell in the Auction all, and may not be able to sell any, shares of AMPS
subject to such Submitted Sell Orders. See "Acceptance and Rejection of
Submitted Bids and Submitted Sell Orders and Allocation of Shares." Thus,
under some circumstances, Beneficial Owners may not have liquidity of
investment.
 
  Acceptance and Rejection of Submitted Bids and Submitted Sell Orders and
Allocation of Shares. Based on the determinations described under
"Determination of Sufficient Clearing Bids, Winning Bid Rate and Applicable
Rate" and subject to the discretion of the Auction Agent to round as described
below, Submitted Bids and Submitted Sell Orders will be accepted or rejected
in the order of priority set forth in the Auction Procedures with the result
that Existing Holders and Potential Holders of AMPS will sell, continue to
hold and/or purchase shares of AMPS as set forth below. Existing Holders that
submit or are deemed to have submitted Hold Orders will continue to hold the
shares of AMPS subject to such Hold Orders.
 
  If Sufficient Clearing Bids have been made:
 
    (a) each Existing Holder that placed a Submitted Bid specifying a rate
  per annum higher than the Winning Bid Rate or a Submitted Sell Order will
  sell the outstanding shares of AMPS subject to such Submitted Bid or
  Submitted Sell Order;
 
    (b) each Existing Holder that placed a Submitted Bid specifying a rate
  per annum lower than the Winning Bid Rate will continue to hold the
  outstanding shares of AMPS subject to such Submitted Bid;
 
    (c) each Potential Holder that placed a Submitted Bid specifying a rate
  per annum lower than the Winning Bid Rate will purchase the number of
  shares of AMPS subject to such Submitted Bid;
 
    (d) each Existing Holder that placed a Submitted Bid specifying a rate
  per annum equal to the Winning Bid Rate will continue to hold the
  outstanding shares of AMPS subject to such Submitted Bids, unless the
  number of outstanding shares of AMPS subject to all such Submitted Bids of
  Existing Holders is greater than the excess of the Available AMPS over the
  number of shares of AMPS accounted for in clauses (b) and (c) above, in
  which event each Existing Holder with such a Submitted Bid will sell a
  number of outstanding shares of AMPS determined on a pro rata basis based
  on the number of outstanding shares of AMPS subject to all such Submitted
  Bids of such Existing Holders; and
 
    (e) each Potential Holder that placed a Submitted Bid specifying a rate
  per annum equal to the Winning Bid Rate will purchase any Available AMPS
  not accounted for in clause (b), (c) or (d) above on a pro rata basis based
  on the shares of AMPS subject to all such Submitted Bids of Potential
  Holders.
 
  If Sufficient Clearing Bids have not been made (other than because all
outstanding shares of AMPS are the subject of Submitted Hold Orders):
 
    (a)  each Existing Holder that placed a Submitted Bid specifying a rate
  per annum equal to or lower than the Maximum Applicable Rate will continue
  to hold the outstanding shares of AMPS subject to such Submitted Bid;
 
    (b) each Potential Holder that placed a Submitted Bid specifying a rate
  per annum equal to or lower than the Maximum Applicable Rate will purchase
  the number of shares of AMPS subject to such Submitted Bid; and
 
    (c) each Existing Holder that placed a Submitted Bid specifying a rate
  per annum higher than the Maximum Applicable Rate or a Submitted Sell Order
  will sell a number of outstanding shares of AMPS determined on a pro rata
  basis based on the outstanding shares of AMPS subject to all such Submitted
  Bids and Submitted Sell Orders.
 
                                      39
<PAGE>
 
  If as a result of the Auction Procedures described above any Existing Holder
would be entitled or required to sell, or any Potential Holder would be
entitled or required to purchase, a fraction of a share of AMPS, the Auction
Agent, in such manner as, in its sole discretion, it shall determine, will
round up or down the number of shares of AMPS being sold or purchased on such
Auction Date so that each share sold or purchased by each Existing Holder or
Potential Holder will be a whole share of AMPS. If any Potential Holder would
be entitled or required to purchase less than a whole share of AMPS, the
Auction Agent, in such manner as, in its sole discretion, it shall determine,
will allocate shares of AMPS for purchase among Potential Holders so that only
whole shares of AMPS are purchased by any such Potential Holder, even if such
allocation results in one or more of such Potential Holders not purchasing any
shares of AMPS.
 
  Notification of Results; Settlement. The Auction Agent will advise each
Broker-Dealer who submitted a Bid or Sell Order in an Auction whether such Bid
or Sell Order was accepted or rejected in whole or in part and of the
Applicable Rate for the next Dividend Period for the related shares of AMPS by
telephone at approximately 3:00 P.M., New York City time, on the Auction Date
for such Auction. Each such Broker-Dealer that submitted an Order for the
account of a customer then will advise such customer whether such Bid or Sell
Order was accepted or rejected, will confirm purchases and sales with each
customer purchasing or selling shares of AMPS as a result of the Auction and
will advise each customer purchasing or selling shares of AMPS to give
instructions to its Agent Member of the Securities Depository to pay the
purchase price against delivery of such shares or to deliver such shares
against payment therefor as appropriate. If a customer selling shares of AMPS
as a result of an Auction shall fail to instruct its Agent Member to deliver
such shares, the Broker-Dealer that submitted such customer's Bid or Sell
Order will instruct such Agent Member to deliver such shares against payment
therefor. Each Broker-Dealer that submitted a Hold Order in an Auction on
behalf of a customer also will advise such customer of the Applicable Rate for
the next Dividend Period for the AMPS. The Auction Agent will record each
transfer of shares of AMPS on the record book of Existing Holders to be
maintained by the Auction Agent.
 
  In accordance with the Securities Depository's normal procedures, on the day
after each Auction Date, the transactions described above will be executed
through the Securities Depository, and the accounts of the respective Agent
Members at the Securities Depository will be debited and credited as necessary
to effect the purchases and sales of shares of AMPS as determined in such
Auction. Purchasers will make payment through their Agent Members in same-day
funds to the Securities Depository against delivery through their Agent
Members; the Securities Depository will make payment in accordance with its
normal procedures, which now provide for payment in same-day funds. If the
procedures of the Securities Depository applicable to AMPS shall be changed to
provide for payment in next-day funds, then purchasers may be required to make
payment in next-day funds. If the certificates for shares of AMPS are not held
by the Securities Depository or its nominee, payment will be made in same-day
funds to the Auction Agent against delivery of such certificates.
 
  If any Existing Holder selling shares of AMPS in an Auction fails to deliver
such shares, the Broker-Dealer of any person that was to have purchased shares
of AMPS in such Auction may deliver to such person a number of whole shares of
AMPS that is less than the number of shares that otherwise was to be purchased
by such person. In such event, the number of shares of AMPS to be so delivered
will be determined by such Broker-Dealer. Delivery of such lesser number of
shares will constitute good delivery. Each Broker-Dealer Agreement also will
provide that neither the Fund nor the Auction Agent will have responsibility
or liability with respect to the failure of a Potential Beneficial Owner,
Beneficial Owner or their respective Agent Members to deliver shares of AMPS
or to pay for shares of AMPS purchased or sold pursuant to an Auction or
otherwise.
 
BROKER-DEALERS
 
  The Auction Agent after each Auction will pay a service charge from funds
provided by the Fund to each Broker-Dealer on the basis of the purchase price
of shares of AMPS placed by such Broker-Dealer at such Auction. The service
charge (i) for any 7-Day Dividend Period shall be payable at the annual rate
of 0.25% of the purchase price of the shares of AMPS placed by such Broker-
Dealer in any such Auction and (ii) for any Special Dividend Period shall be
determined by mutual consent of the Fund and any such Broker-Dealer or
 
                                      40
<PAGE>
 
Broker-Dealers and shall be based upon a selling concession that would be
applicable to an underwriting of fixed or variable rate preferred shares with
a similar final maturity or variable rate dividend period, respectively, at
the commencement of the Dividend Period with respect to such Auction. For the
purposes of the preceding sentence, shares of AMPS will be placed by a Broker-
Dealer if such shares were (i) the subject of Hold Orders deemed to have been
made by Beneficial Owners that were acquired by such Beneficial Owners through
such Broker-Dealer or (ii) the subject of the following Orders submitted by
such Broker-Dealer: (A) a Submitted Bid of a Beneficial Owner that resulted in
such Beneficial Owner continuing to hold such shares as a result of the
Auction, (B) a Submitted Bid of a Potential Beneficial Owner that resulted in
such Potential Beneficial Owner purchasing such shares as a result of the
Auction or (C) a Submitted Hold Order.
 
  The Broker-Dealer Agreements provide that a Broker-Dealer may submit Orders
in Auctions for its own account, unless the Fund notifies all Broker-Dealers
that they no longer may do so; provided that Broker-Dealers may continue to
submit Hold Orders and Sell Orders. If a Broker-Dealer submits an Order for
its own account in any Auction of any series of AMPS, it may have knowledge of
Orders placed through it in that Auction and therefore have an advantage over
other Bidders, but such Broker-Dealer would not have knowledge of Orders
submitted by other Broker-Dealers in that Auction.
 
  The Broker-Dealers intend to maintain a secondary trading market in the AMPS
outside of Auctions; however, they have no obligation to do so and there can
be no assurance that a secondary market for the AMPS will develop or, if it
does develop, that it will provide holders with a liquid trading market (i.e.,
trading will depend on the presence of willing buyers and sellers and the
trading price is subject to variables to be determined at the time of the
trade by the Broker-Dealers). The AMPS will not be registered on any stock
exchange or on any automated quotation system. An increase in the level of
interest rates, particularly during any Long-Term Dividend Period, likely will
have an adverse effect on the secondary market price of the AMPS, and a
selling shareholder may sell AMPS between Auctions at a price per share of
less than $25,000.
 
DIVIDENDS
 
  General. The holders of shares of each series of AMPS will be entitled to
receive, when, as and if declared by the Board of Directors of the Fund, out
of funds legally available therefor, cumulative cash dividends on their
shares, at the Applicable Rate determined as set forth below under
"Determination of Dividend Rate," payable on the respective dates set forth
below. Dividends on the shares of AMPS so declared and payable shall be paid
(i) in preference to and in priority over any dividends so declared and
payable on the Common Stock, and (ii) to the extent permitted under the Code
and to the extent available, out of net tax-exempt income earned on the Fund's
investments. Generally, dividends on shares of AMPS, to the extent that they
are derived from interest paid on Municipal Bonds, will be exempt from Federal
income taxes, subject to possible application of the alternative minimum tax.
See "Taxes."
 
  Dividends on the shares of AMPS will accumulate from the date on which the
Fund originally issues the shares of AMPS (the "Date of Original Issue") and
will be payable on each series of AMPS on the dates described below. Dividends
on shares of each series of AMPS with respect to the Initial Dividend Period
shall be payable on the Initial Dividend Payment Date with respect to each
series of AMPS. Following the Initial Dividend Payment Date for each series of
AMPS, dividends on each series of AMPS will be payable, at the option of the
Fund, either (i) with respect to any 7-Day Dividend Period and any Short Term
Dividend Period of 35 or fewer days, on the day next succeeding the last day
thereof or (ii) with respect to any Short Term Dividend Period of more than 35
days and with respect to any Long Term Dividend Period, monthly on the first
Business Day of each calendar month during such Short Term Dividend Period or
Long Term Dividend Period and on the day next succeeding the last day thereof
(each such date referred to in clause (i) or (ii) being referred to herein as
a "Normal Dividend Payment Date"), except that if such Normal Dividend Payment
Date is not a Business Day, (i) the Dividend Payment Date shall be the first
Business Day next succeeding such Normal Dividend Payment Date if such Normal
Dividend Payment Date is a Monday, Tuesday, Wednesday or Thursday, or (ii) the
Dividend Payment Date shall be the first Business Day next preceding such
Normal Dividend Payment Date if such Normal Dividend Payment Date is a Friday.
Thus, following the Initial Dividend Payment Date for each
 
                                      41
<PAGE>
 
series of AMPS, dividends generally will be payable (in the case of Dividend
Periods which are not Special Dividend Periods) on each succeeding     in the
case of Series A AMPS and on each succeeding     in the case of Series B AMPS.
Although any particular Dividend Payment Date may not occur on the originally
scheduled date because of the exceptions discussed above, the next succeeding
Dividend Payment Date, subject to such exceptions, will occur on the next
following originally scheduled date. If for any reason a Dividend Payment Date
cannot be fixed as described above, then the Board of Directors shall fix the
Dividend Payment Date. The Board of Directors by resolution prior to
authorization of a dividend by the Board of Directors may change a Dividend
Payment Date if such change does not adversely affect the contract rights of
the holders of shares of AMPS set forth in the Charter. The Initial Dividend
Period, 7-Day Dividend Periods and Special Dividend Periods are hereinafter
sometimes referred to as "Dividend Periods." Each dividend payment date
determined as provided above is hereinafter referred to as a "Dividend Payment
Date."
 
  Prior to each Dividend Payment Date, the Fund is required to deposit with
the Auction Agent sufficient funds for the payment of declared dividends. The
Fund does not intend to establish any reserves for the payment of dividends.
 
  Each dividend will be paid to the record holder of the AMPS, which holder is
expected to be the nominee of the Securities Depository. See "Description of
AMPS--The Auction--Securities Depository." The Securities Depository will
credit the accounts of the Agent Members of the Existing Holders in accordance
with the Securities Depository's normal procedures which provide for payment
in same-day funds. The Agent Member of an Existing Holder will be responsible
for holding or disbursing such payments on the applicable Dividend Payment
Date to such Existing Holder in accordance with the instructions of such
Existing Holder. Dividends in arrears for any past Dividend Period may be
declared and paid at any time, without reference to any regular Dividend
Payment Date, to the nominee of the Securities Depository. Any dividend
payment made on shares of AMPS first shall be credited against the earliest
declared but unpaid dividends accumulated with respect to such series.
 
  Holders of shares of AMPS will not be entitled to any dividends, whether
payable in cash, property or stock, in excess of full cumulative dividends
except as described under "Additional Dividends" and "Non-Payment Period; Late
Charge" below. No interest will be payable in respect of any dividend payment
or payments on the shares of AMPS which may be in arrears.
 
  The amount of cash dividends per share of any series of AMPS payable (if
declared) on the Initial Dividend Payment Date, each 7-Day Dividend Period and
each Dividend Payment Date of each Short Term Dividend Period shall be
computed by multiplying the Applicable Rate for such Dividend Period by a
fraction, the numerator of which will be the number of days in such Dividend
Period or part thereof that such share was outstanding and for which dividends
are payable on such Dividend Payment Date and the denominator of which will be
365, multiplying the amount so obtained by $25,000, and rounding the amount so
obtained to the nearest cent. During any Long Term Dividend Period, the amount
of cash dividends per share of AMPS payable (if declared) on any Dividend
Payment Date shall be computed by multiplying the Applicable Rate for such
Dividend Period by a fraction, the numerator of which will be such number of
days in such part of such Dividend Period that such share was outstanding and
for which dividends are payable on such Dividend Payment Date and the
denominator of which will be 360, multiplying the amount so obtained by
$25,000, and rounding the amount so obtained to the nearest cent.
 
  Notification of Dividend Period. With respect to each Dividend Period that
is a Special Dividend Period, the Fund, at its sole option and to the extent
permitted by law, by telephonic and written notice (a "Request for Special
Dividend Period") to the Auction Agent and to each Broker-Dealer, may request
that the next succeeding Dividend Period for a series of AMPS will be a number
of days (other than seven), evenly divisible by seven, and not fewer than
seven nor more than 364 in the case of a Short Term Dividend Period or one
whole year or more but not greater than five years in the case of a Long Term
Dividend Period, specified in such notice, provided that the Fund may not give
a Request for Special Dividend Period (and any such request shall be null and
void) unless, for any Auction occurring after the initial Auction, Sufficient
Clearing Bids were made in the
 
                                      42
<PAGE>
 
last occurring Auction and unless full cumulative dividends, any amounts due
with respect to redemptions, and any Additional Dividends payable prior to
such date have been paid in full. Such Request for Special Dividend Period, in
the case of a Short Term Dividend Period, shall be given on or prior to the
second Business Day but not more than seven Business Days prior to an Auction
Date for the AMPS and, in the case of a Long Term Dividend Period, shall be
given on or prior to the second Business Day but not more than 28 days prior
to an Auction Date for the AMPS. Upon receiving such Request for Special
Dividend Period, the Broker-Dealers jointly shall determine whether, given the
factors set forth below, it is advisable that the Fund issue a Notice of
Special Dividend Period for a series of AMPS as contemplated by such Request
for Special Dividend Period and the Optional Redemption Price of the AMPS
during such Special Dividend Period and the Specific Redemption Provisions and
shall give the Fund and the Auction Agent written notice (a "Response") of
such determination by no later than the second Business Day prior to such
Auction Date. In making such determination, the Broker-Dealers will consider
(i) existing short-term and long-term market rates and indices of such short-
term and long-term rates, (ii) existing market supply and demand for short-
term and long-term securities, (iii) existing yield curves for short-term and
long-term securities comparable to the AMPS, (iv) industry and financial
conditions which may affect the AMPS, (v) the investment objective of the Fund
and (vi) the Dividend Periods and dividend rates at which current and
potential beneficial holders of the AMPS would remain or become beneficial
holders. If the Broker-Dealers shall not give the Fund and the Auction Agent a
Response by such second Business Day or if the Response states that given the
factors set forth above it is not advisable that the Fund give a Notice of
Special Dividend Period for the AMPS, the Fund may not give a Notice of
Special Dividend Period in respect of such Request for Special Dividend
Period. In the event the Response indicates that it is advisable that the Fund
give a Notice of Special Dividend Period for the AMPS, the Fund, by no later
than the second Business Day prior to such Auction Date, may give a notice (a
"Notice of Special Dividend Period") to the Auction Agent, the Securities
Depository and each Broker-Dealer, which notice will specify (i) the duration
of the Special Dividend Period, (ii) the Optional Redemption Price as
specified in the related Response and (iii) the Specific Redemption
Provisions, if any, as specified in the related Response. The Fund also shall
provide a copy of such Notice of Special Dividend Period to Moody's and S&P.
The Fund shall not give a Notice of Special Dividend Period, and, if such
Notice of Special Dividend Period shall have been given already, shall give
telephonic and written notice of its revocation (a "Notice of Revocation") to
the Auction Agent, each Broker-Dealer, and the Securities Depository on or
prior to the Business Day prior to the relevant Auction Date if (x) either the
1940 Act AMPS Asset Coverage is not satisfied or the Fund shall fail to
maintain S&P Eligible Assets and Moody's Eligible Assets each with an
aggregate Discounted Value at least equal to the AMPS Basic Maintenance
Amount, in each case on each of the two Valuation Dates immediately preceding
the Business Day prior to the relevant Auction Date on an actual basis and on
a pro forma basis giving effect to the proposed Special Dividend Period (using
as a pro forma dividend rate with respect to such Special Dividend Period the
dividend rate which the Broker-Dealers shall advise the Fund is an
approximately equal rate for securities similar to the AMPS with an equal
dividend period), provided that, in calculating the aggregate Discounted Value
of Moody's Eligible Assets for this purpose, the Moody's Exposure Period shall
be deemed to be one week longer, (y) sufficient funds for the payment of
dividends payable on the immediately succeeding Dividend Payment Date have not
been irrevocably deposited with the Auction Agent by the close of business on
the third Business Day preceding the related Auction Date or (z) the Broker-
Dealers jointly advise the Fund that, after consideration of the factors
listed above, they have concluded that it is advisable to give a Notice of
Revocation. The Fund also shall provide a copy of such Notice of Revocation to
Moody's and S&P. If the Fund is prohibited from giving a Notice of Special
Dividend Period as a result of the factors enumerated in clause (x), (y) or
(z) above or if the Fund gives a Notice of Revocation with respect to a Notice
of Special Dividend Period, the next succeeding Dividend Period for that
series will be a 7-Day Dividend Period. In addition, in the event Sufficient
Clearing Bids are not made in any Auction or an Auction is not held for any
reason, the next succeeding Dividend Period will be a 7-Day Dividend Period,
and the Fund may not again give a Notice of Special Dividend Period (and any
such attempted notice shall be null and void) until Sufficient Clearing Bids
have been made in an Auction with respect to a 7-Day Dividend Period.
 
  Determination of Dividend Rate. The dividend rate on shares of each series
of AMPS during the period from and including the Date of Original Issue for
each series of AMPS to but excluding the Initial Dividend
 
                                      43
<PAGE>
 
Payment Date for each series of AMPS (the "Initial Dividend Period") will be
the rate per annum set forth on the inside cover page hereof. Commencing on
the Initial Dividend Payment Date for each series of AMPS, the Applicable Rate
on the shares of such series of AMPS for each Subsequent Dividend Period,
which Subsequent Dividend Period shall be a period commencing on and including
a Dividend Payment Date and ending on and including the calendar day prior to
the next Dividend Payment Date (or last Dividend Payment Date in a Dividend
Period if there is more than one Dividend Payment Date), shall be equal to the
rate per annum that results from the Auction with respect to such Subsequent
Dividend Period. The Initial Dividend Period and Subsequent Dividend Period
for each series of AMPS is referred to herein as a "Dividend Period." Cash
dividends shall be calculated as set forth above under "Dividends--General."
 
  Non-Payment Period; Late Charge. A Non-Payment Period will commence if the
Fund fails to (i) declare, prior to the close of business on the second
Business Day preceding any Dividend Payment Date, for payment on or (to the
extent permitted as described below) within three Business Days after such
Dividend Payment Date to the persons who held such shares as of 12:00 noon,
New York City time, on the Business Day preceding such Dividend Payment Date,
the full amount of any dividend on shares of AMPS payable on such Dividend
Payment Date or (ii) deposit, irrevocably in trust, in same-day funds, with
the Auction Agent by 12:00 noon, New York City time, (A) on such Dividend
Payment Date the full amount of any cash dividend on such shares (if declared)
payable on such Dividend Payment Date or (B) on any redemption date for shares
of AMPS called for redemption, the Mandatory Redemption Price per share of
such AMPS or, in the case of an optional redemption, the Optional Redemption
Price per share. Such Non-Payment Period will consist of the period commencing
on and including the aforementioned Dividend Payment Date or redemption date,
as the case may be, and ending on and including the Business Day on which, by
12:00 noon, New York City time, all unpaid cash dividends and unpaid
redemption prices shall have been so deposited or otherwise shall have been
made available to the applicable holders in same-day funds, provided that a
Non-Payment Period for any series of AMPS will not end unless the Fund shall
have given at least five days' but no more than 30 days' written notice of
such deposit or availability to the Auction Agent, the Securities Depository
and all holders of shares of AMPS of such series. Notwithstanding the
foregoing, the failure by the Fund to deposit funds as provided for by clauses
(ii) (A) or (ii) (B) above within three Business Days after any Dividend
Payment Date or redemption date, as the case may be, in each case to the
extent contemplated below, shall not constitute a "Non-Payment Period." The
Applicable Rate for each Dividend Period for shares of AMPS of any series,
commencing during a Non-Payment Period, will be equal to the Non-Payment
Period Rate; and each Dividend Period commencing after the first day of, and
during, a Non-Payment Period shall be a 7-Day Dividend Period. Any dividend on
shares of AMPS due on any Dividend Payment Date for such shares (if, prior to
the close of business on the second Business Day preceding such Dividend
Payment Date, the Fund has declared such dividend payable on such Dividend
Payment Date to the persons who held such shares as of 12:00 noon, New York
City time, on the Business Day preceding such Dividend Payment Date) or
redemption price with respect to such shares not paid to such persons when due
may be paid to such persons in the same form of funds by 12:00 noon, New York
City time, on any of the first three Business Days after such Dividend Payment
Date or due date, as the case may be, provided that such amount is accompanied
by a late charge calculated for such period of non-payment at the Non-Payment
Period Rate applied to the amount of such non-payment based on the actual
number of days comprising such period divided by 365. In the case of a willful
failure of the Fund to pay a dividend on a Dividend Payment Date or to redeem
any shares of AMPS on the date set for such redemption, the preceding sentence
shall not apply and the Applicable Rate for the Dividend Period commencing
during the Non-Payment Period resulting from such failure shall be the Non-
Payment Period Rate. For the purposes of the foregoing, payment to a person in
same-day funds on any Business Day at any time will be considered equivalent
to payment to that person in New York Clearing House (next-day) funds at the
same time on the preceding Business Day, and any payment made after 12:00
noon, New York City time, on any Business Day shall be considered to have been
made instead in the same form of funds and to the same person before 12:00
noon, New York City time, on the next Business Day. The Non-Payment Period
Rate initially will be 200% of the applicable Reference Rate (or 275% of such
rate if the Fund has provided notification to the Auction Agent prior to the
Auction establishing the Applicable Rate for any dividend that net capital
gains or other taxable income will be included in such dividend on shares of
AMPS), provided that the Board of Directors of the Fund shall have the
authority to adjust, modify, alter or change from time to
 
                                      44
<PAGE>
 
time the initial Non-Payment Period Rate if the Board of Directors of the Fund
determines and Moody's and S&P (and any Substitute Rating Agency in lieu of
Moody's or S&P in the event either of such parties shall not rate the AMPS)
advise the Fund in writing that such adjustment, modification, alteration or
change will not adversely affect their then-current ratings on the AMPS.
 
  Restrictions on Dividends and Other Payments. Under the 1940 Act, the Fund
may not declare dividends or make other distributions on shares of Common
Stock or purchase any such shares if, at the time of the declaration,
distribution or purchase, as applicable (and after giving effect thereto),
asset coverage (as defined in the 1940 Act) with respect to the outstanding
shares of AMPS would be less than 200% (or such other percentage as in the
future may be required by law). The Fund estimates that, based on the
composition of its portfolio at September   , 1998, asset coverage with
respect to shares of AMPS would be approximately    % immediately after the
issuance of the shares of AMPS offered hereby. Under the Code, the Fund, among
other things, must distribute at least 90% of its investment company taxable
income each year in order to maintain its qualification for tax treatment as a
regulated investment company. The foregoing limitations on dividends,
distributions and purchases under certain circumstances may impair the Fund's
ability to maintain such qualification. See "Taxes."
 
  Upon any failure to pay dividends on shares of AMPS for two years or more,
the holders of the shares of AMPS will acquire certain additional voting
rights. See "Voting Rights" below. Such rights shall be the exclusive remedy
of the holders of shares of AMPS upon any failure to pay dividends on shares
of the Fund.
 
  For so long as any shares of AMPS are outstanding, the Fund will not
declare, pay or set apart for payment any dividend or other distribution
(other than a dividend or distribution paid in shares of, or options, warrants
or rights to subscribe for or purchase, Common Stock or other stock, if any,
ranking junior to shares of AMPS as to dividends or upon liquidation) in
respect of Common Stock or any other stock of the Fund ranking junior to or on
a parity with shares of AMPS as to dividends or upon liquidation, or call for
redemption, redeem, purchase or otherwise acquire for consideration any shares
of Common Stock or any other such junior stock (except by conversion into or
exchange for stock of the Fund ranking junior to AMPS as to dividends and upon
liquidation) or any such parity stock (except by conversion into or exchange
for stock of the Fund ranking junior to or on a parity with AMPS as to
dividends and upon liquidation), unless (A) immediately after such
transaction, the Fund would have S&P Eligible Assets and Moody's Eligible
Assets each with an aggregate Discounted Value equal to or greater than the
AMPS Basic Maintenance Amount, and the 1940 Act AMPS Asset Coverage (see
"Asset Maintenance" and "Redemption" below) would be satisfied, (B) full
cumulative dividends on shares of AMPS due on or prior to the date of the
transaction have been declared and paid or shall have been declared and
sufficient funds for the payment thereof deposited with the Auction Agent, (C)
any Additional Dividend required to be paid on or before the date of such
declaration or payment has been paid and (D) the Fund has redeemed the full
number of shares of AMPS required to be redeemed by any provision for
mandatory redemption contained in the Articles Supplementary.
 
  Additional Dividends. If the Fund retroactively allocates any capital gains
or other income subject to regular Federal income taxes to shares of AMPS
without having given advance notice thereof to the Auction Agent as described
above under "The Auction--Auction Date; Advance Notice of Allocation of
Taxable Income; Inclusion of Taxable Income in Dividends," which may only
happen when such allocation is made as a result of the redemption of all or a
portion of the outstanding shares of AMPS or the liquidation of the Fund (the
amount of such allocation referred to herein as a "Retroactive Taxable
Allocation"), the Fund, within 90 days (and generally within 60 days) after
the end of the Fund's fiscal year for which a Retroactive Taxable Allocation
is made, will provide notice thereof to the Auction Agent and to each holder
of shares (initially Cede as nominee of the Securities Depository) during such
fiscal year at such holder's address as the same appears or last appeared on
the stock books of the Fund. The Fund, within 30 days after such notice is
given to the Auction Agent, will pay to the Auction Agent (who then will
distribute to such holders of shares of AMPS), out of funds legally available
therefor, an amount equal to the aggregate Additional Dividend (as defined
below) with respect to all Retroactive Taxable Allocations made to such
holders during the fiscal year in question. See "Taxes."
 
 
                                      45
<PAGE>
 
  An "Additional Dividend" means payment to a present or former holder of
shares of AMPS of an amount which, when taken together with the aggregate
amount of Retroactive Taxable Allocations made to such holder with respect to
the fiscal year in question, would cause such holder's dividends in dollars
(after Federal and California income tax consequences) from the aggregate of
both the Retroactive Taxable Allocations and the Additional Dividend to be
equal to the dollar amount of the dividends which would have been received by
such holder if the amount of the aggregate Retroactive Taxable Allocations had
been excludable from the gross income of such holder. Such Additional Dividend
shall be calculated (i) without consideration being given to the time value of
money; (ii) assuming that no holder of shares of AMPS is subject to the
Federal alternative minimum tax with respect to dividends received from the
Fund; and (iii) assuming that each Retroactive Taxable Allocation would be
taxable in the hands of each holder of shares of AMPS at the greater of: (a)
the maximum combined marginal regular Federal and California individual income
tax rate applicable to ordinary income or capital gains depending on the
taxable character of the distribution (including any surtax); or (b) the
maximum combined marginal regular Federal and California corporate income tax
rate applicable to ordinary income or capital gains depending on the taxable
character of the distribution (taking into account in both (a) and (b) the
Federal income tax deductibility of state taxes paid or incurred but not any
phase out of, or provision limiting, personal exemptions, itemized deductions,
or the benefit of lower tax brackets and assuming the taxability of Federally
tax-exempt dividends for corporations for California state franchise tax
purposes). Although the Fund generally intends to designate any Additional
Dividend as an exempt-interest dividend to the extent permitted by applicable
law, it is possible that all or a portion of any Additional Dividend will be
taxable to the recipient thereof. See "Taxes--Tax Treatment of Additional
Dividends." The Fund will not pay a further Additional Dividend with respect
to any taxable portion of an Additional Dividend.
 
  If the Fund does not give advance notice of the amount of taxable income to
be included in a dividend on shares of AMPS in the related Auction, as
described above under "The Auction--Auction Date; Advance Notice of Allocation
of Taxable Income; Inclusion of Taxable Income in Dividends," the Fund may
include such taxable income in a dividend on shares of AMPS if it increases
the dividend by an additional amount calculated as if such income were a
Retroactive Taxable Allocation and the additional amount were an Additional
Dividend and notifies the Auction Agent of such inclusion at least five days
prior to the applicable Dividend Payment Date.
 
ASSET MAINTENANCE
 
  The Fund will be required to satisfy two separate asset maintenance
requirements under the terms of the Articles Supplementary. These requirements
are summarized below.
 
  1940 Act AMPS Asset Coverage. The Fund will be required under the Articles
Supplementary to maintain, with respect to shares of AMPS, as of the last
Business Day of each month in which any shares of AMPS are outstanding, asset
coverage of at least 200% with respect to senior securities which are stock,
including the shares of AMPS (or such other asset coverage as in the future
may be specified in or under the 1940 Act as the minimum asset coverage for
senior securities which are stock of a closed-end investment company as a
condition of paying dividends on its common stock) ("1940 Act AMPS Asset
Coverage"). If the Fund fails to maintain 1940 Act AMPS Asset Coverage and
such failure is not cured as of the last Business Day of the following month
(the "1940 Act Cure Date"), the Fund will be required under certain
circumstances to redeem certain of the shares of AMPS. See "Redemption" below.
 
  The 1940 Act AMPS Asset Coverage immediately following the issuance of AMPS
offered hereby (after giving effect to the deduction of the sales load and
offering expenses for the shares of AMPS) will be computed as follows:
 
<TABLE>
         <S>                               <C>         <C>            <C>         <C>
          Value of Fund assets less
         liabilities not constituting
              senior securities                        $
                                            =                          =             %
         ----------------------------                  ------
              Senior securities                        $
          representing indebtedness
            plus liquidation value
            of the shares of AMPS
</TABLE>
 
 
                                      46
<PAGE>
 
  AMPS Basic Maintenance Amount. So long as shares of AMPS are outstanding,
the Fund will be required under the Articles Supplementary to maintain as of
each Business Day (a "Valuation Date") S&P Eligible Assets and Moody's
Eligible Assets each having in the aggregate a Discounted Value at least equal
to the AMPS Basic Maintenance Amount. If the Fund fails to meet such
requirement as of any Valuation Date and such failure is not cured on or
before the sixth Business Day after such Valuation Date (the "AMPS Basic
Maintenance Cure Date"), the Fund will be required under certain circumstances
to redeem certain of the shares of AMPS. Upon any failure to maintain the
required Discounted Value, the Fund will use its best efforts to alter the
composition of its portfolio to reattain a Discounted Value at least equal to
the AMPS Basic Maintenance Amount on or prior to the AMPS Basic Maintenance
Cure Date. See "Redemption."
 
  The AMPS Basic Maintenance Amount as of any Valuation Date is defined as the
dollar amount equal to (i) the sum of (A) the product of the number of shares
of AMPS outstanding on such Valuation Date multiplied by the sum of $25,000
and any applicable redemption premium attributable to the designation of a
Premium Call Period; (B) the aggregate amount of cash dividends (whether or
not earned or declared) that will have accumulated for each share of AMPS
outstanding to (but not including) the end of the current Dividend Period that
follows such Valuation Date in the event the then-current Dividend Period will
end within 49 calendar days of such Valuation Date or through the 49th day
after such Valuation Date in the event the then-current Dividend Period for
each series of AMPS will not end within 49 calendar days of such Valuation
Date; (C) in the event the then-current Dividend Period will end within 49
calendar days of such Valuation Date, the aggregate amount of cash dividends
that would accumulate at the Maximum Applicable Rate applicable to a Dividend
Period of 28 or fewer days on any shares of AMPS outstanding from the end of
such Dividend Period through the 49th day after such Valuation Date,
multiplied by the larger of the Moody's Volatility Factor and the S&P
Volatility Factor determined from time to time by Moody's and S&P,
respectively (except that if such Valuation Date occurs during a Non-Payment
Period, the cash dividend for purposes of calculation would accumulate at the
then-current Non-Payment Period Rate); (D) the amount of anticipated Fund
expenses for the 90 days subsequent to such Valuation Date (including any
premiums payable with respect to a Policy); (E) the amount of the Fund's
Maximum Potential Additional Dividend Liability as of such Valuation Date; and
(F) any current liabilities as of such Valuation Date to the extent not
reflected in any of (i) (A) through (i) (E) (including, without limitation,
and immediately upon determination, any amounts due and payable by the Fund
pursuant to repurchase agreements, any amounts payable for California Muncipal
Bonds or Municipal Bonds purchased as of such Valuation Date) less (ii) either
(A) the Discounted Value of any Fund assets, or (B) the face value of any of
the Fund's assets if such assets mature prior to or on the date of redemption
of AMPS or payment of a liability and are either securities issued or
guaranteed by the United States Government or Deposit Securities, in both
cases irrevocably deposited by the Fund for the payment of the amount needed
to redeem shares of AMPS subject to redemption or to satisfy any of (i) (B)
through (i) (F). For Moody's and S&P the Fund shall include as a liability an
amount calculated semi-annually equal to 150% of the estimated cost of
obtaining other insurance guaranteeing the timely payment of interest on a
Moody's Eligible Asset or S&P Eligible Asset and principal thereof to maturity
with respect to Moody's Eligible Assets and S&P Eligible Assets that (i) are
covered by a Policy which provides the Fund with the option to obtain such
other insurance and (ii) are discounted by a Moody's Discount Factor or S&P
Discount Factor, as the case may be, determined by reference to the insurance
claims-paying ability rating of the issuer of such Policy. For purposes of the
foregoing, "Maximum Potential Additional Dividend Liability," as of any
Valuation Date, means the aggregate amount of Additional Dividends that would
be due if the Fund were to make Retroactive Taxable Allocations, with respect
to any fiscal year, estimated based upon dividends paid and the amount of
undistributed realized net capital gains and other taxable income earned by
the Fund, as of the end of the calendar month immediately preceding such
Valuation Date and assuming such Additional Dividends are fully taxable.
 
  The Discount Factors and guidelines for determining the market value of the
Fund's portfolio holdings have been based on criteria established in
connection with rating the AMPS. These factors include, but are not limited
to, the sensitivity of the market value of the relevant asset to changes in
interest rates, the liquidity and depth of the market for the relevant asset,
the credit quality of the relevant asset (for example, the lower the rating of
a debt obligation, the higher the related discount factor) and the frequency
with which the relevant asset is marked to market. In no event shall the
Discounted Value of any asset of the Fund exceed its unpaid principal balance
or
 
                                      47
<PAGE>
 
face amount as of the date of calculation. The Discount Factor relating to any
asset of the Fund and the AMPS Basic Maintenance Amount, the assets eligible
for inclusion in the calculation of the Discounted Value of the Fund's
portfolio and certain definitions and methods of calculation relating thereto
may be changed from time to time by the Fund, without shareholder approval,
but only in the event the Fund receives written confirmation from S&P, Moody's
and any Substitute Rating Agency that any such changes would not impair the
ratings then assigned to the shares of AMPS by S&P or Moody's or any
Substitute Rating Agency.
 
  On or before the third Business Day after a Valuation Date on which the Fund
fails to maintain S&P Eligible Assets and Moody's Eligible Assets each with an
aggregate Discounted Value equal to or greater than the AMPS Basic Maintenance
Amount, the Fund is required to deliver to the Auction Agent, Moody's and S&P
a report with respect to the calculation of the AMPS Basic Maintenance Amount
and the value of its portfolio holdings as of the date of such failure (an
"AMPS Basic Maintenance Report"). Additionally, on or before the third
Business Day after the first day of a Special Dividend Period, the Fund will
deliver an AMPS Basic Maintenance Report to S&P and the Auction Agent. The
Fund also will deliver an AMPS Basic Maintenance Report as of the twenty-first
day of the last month of each fiscal quarter of the Fund (or, if such day is
not a Business Day, the next succeeding Business Day) on or before the third
Business Day after such day. Within ten Business Days after delivery of such
report relating to the twenty-first day of the last month of each fiscal
quarter of the Fund, the Fund will deliver a letter prepared by the Fund's
independent accountants regarding the accuracy of the calculations made by the
Fund in its most recent AMPS Basic Maintenance Report. Also, on or before 5:00
p.m., New York City time, on the first Business Day after shares of Common
Stock are repurchased by the Fund, the Fund will complete and deliver to S&P
and Moody's an AMPS Basic Maintenance Report as of the close of business on
such date that Common Stock is repurchased. If any such letter prepared by the
Fund's independent accountants shows that an error was made in the most recent
AMPS Basic Maintenance Report, the calculation or determination made by the
Fund's independent accountants will be conclusive and binding on the Fund.
 
REDEMPTION
 
  Optional Redemption. To the extent permitted under the 1940 Act and under
Maryland law, upon giving a Notice of Redemption, as provided below, the Fund,
at its option, may redeem shares of AMPS of any series, in whole or in part,
out of funds legally available therefor, at the Optional Redemption Price per
share on any Dividend Payment Date; provided that no share of AMPS may be
redeemed at the option of the Fund during (a) the Initial Dividend Period with
respect to a series of shares or (b) a Non-Call Period to which such share is
subject. "Optional Redemption Price" means $25,000 per share of AMPS plus an
amount equal to accumulated but unpaid dividends (whether or not earned or
declared) to the date fixed for redemption plus any applicable redemption
premium, if any, attributable to the designation of a Premium Call Period. In
addition, holders of AMPS may be entitled to receive Additional Dividends in
the event of redemption of such AMPS to the extent provided herein. See
"Description of AMPS--Dividends--Additional Dividends." The Fund has the
authority to redeem the AMPS for any reason and may redeem all or part of the
outstanding shares of AMPS if it anticipates that the Fund's leveraged capital
structure will result in a lower rate of return to holders of Common Stock for
any significant period of time than that obtainable if the Common Stock were
unleveraged.
 
  Mandatory Redemption. The Fund will be required to redeem, out of funds
legally available therefor, at the Mandatory Redemption Price per share,
shares of AMPS to the extent permitted under the 1940 Act and Maryland law, on
a date fixed by the Board of Directors, if the Fund fails to maintain S&P
Eligible Assets and Moody's Eligible Assets each with an aggregate Discounted
Value equal to or greater than the AMPS Basic Maintenance Amount or to satisfy
the 1940 Act AMPS Asset Coverage and such failure is not cured on or before
the AMPS Basic Maintenance Cure Date or the 1940 Act Cure Date (herein
collectively referred to as a "Cure Date"), as the case may be. "Mandatory
Redemption Price" means $25,000 per share of AMPS plus an amount equal to
accumulated but unpaid dividends (whether or not earned or declared) to the
date fixed for redemption. In addition, holders of AMPS may be entitled to
receive Additional Dividends in the event of redemption of such AMPS to the
extent provided herein. See "Description of AMPS--Dividends--Additional
Dividends." The number of shares of AMPS to be redeemed will be equal to the
lesser of (a) the minimum number of shares of AMPS the redemption of which, if
deemed to have occurred immediately prior to the opening of business on
 
                                      48
<PAGE>
 
the Cure Date, together with all other shares of the Preferred Stock subject
to redemption or retirement, would result in the Fund having S&P Eligible
Assets and Moody's Eligible Assets each with an aggregate Discounted Value
equal to or greater than the AMPS Basic Maintenance Amount or satisfaction of
the 1940 Act AMPS Asset Coverage, as the case may be, on such Cure Date
(provided that, if there is no such minimum number of shares the redemption of
which would have such result, all shares of AMPS then outstanding will be
redeemed), and (b) the maximum number of shares of AMPS, together with all
other shares of Preferred Stock subject to redemption or retirement, that can
be redeemed out of funds expected to be legally available therefor on such
redemption date. In determining the number of shares of AMPS required to be
redeemed in accordance with the foregoing, the Fund shall allocate the number
required to be redeemed which would result in the Fund having S&P Eligible
Assets and Moody's Eligible Assets each with an aggregate Discounted Value
equal to or greater than the AMPS Basic Maintenance Amount or satisfaction of
the 1940 Act AMPS Asset Coverage, as the case may be, pro rata among shares of
AMPS and other Preferred Stock subject to redemption pursuant to provisions
similar to those set forth below; provided that, shares of AMPS which may not
be redeemed at the option of the Fund due to the designation of a Non-Call
Period applicable to such shares (A) will be subject to mandatory redemption
only to the extent that other shares are not available to satisfy the number
of shares required to be redeemed and (B) will be selected for redemption in
an ascending order of outstanding number of days in the Non-Call Period (with
shares with the lowest number of days to be redeemed first) and by lot in the
event of shares having an equal number of days in such Non-Call Period. The
Fund is required to effect such a mandatory redemption not later than 35 days
after such Cure Date, except that if the Fund does not have funds legally
available for the redemption of all of the required number of shares of AMPS
which are subject to mandatory redemption or the Fund otherwise is unable to
effect such redemption on or prior to 35 days after such Cure Date, the Fund
will redeem those shares of AMPS which it was unable to redeem on the earliest
practicable date on which it is able to effect such redemption.
 
  General. If shares of AMPS of any series are to be redeemed, a notice of
redemption will be mailed to each record holder of such shares of AMPS
(initially Cede as nominee of the Securities Depository) and to the Auction
Agent not less than 17 nor more than 30 days prior to the date fixed for the
redemption thereof. Each notice of redemption will include a statement setting
forth: (i) the redemption date, (ii) the aggregate number of shares of AMPS of
such series to be redeemed, (iii) the redemption price, (iv) the place or
places where shares of AMPS of such series are to be surrendered for payment
of the redemption price, (v) a statement that dividends on the shares to be
redeemed will cease to accumulate on such redemption date (except that holders
may be entitled to Additional Dividends) and (vi) the provision of the
Articles Supplementary pursuant to which such shares are being redeemed. The
notice also will be published in The Wall Street Journal. No defect in the
notice of redemption or in the mailing or publication thereof will affect the
validity of the redemption proceedings, except as required by applicable law.
 
  In the event that less than all of the outstanding shares of any series of
AMPS are to be redeemed, the shares to be redeemed will be selected by lot or
such other method as the Fund shall deem fair and equitable, and the results
thereof will be communicated to the Auction Agent. The Auction Agent will give
notice to the Securities Depository, whose nominee will be the record holder
of all shares of AMPS, and the Securities Depository will determine the number
of shares to be redeemed from the account of the Agent Member of each Existing
Holder. Each Agent Member will determine the number of shares to be redeemed
from the account of each Existing Holder for which it acts as agent. An Agent
Member may select for redemption shares from the accounts of some Existing
Holders without selecting for redemption any shares from the accounts of other
Existing Holders. Notwithstanding the foregoing, if neither the Securities
Depository nor its nominee is the record holder of all of the shares of such
series, the particular shares to be redeemed shall be selected by the Fund by
lot or by such other method as the Fund shall deem fair and equitable.
 
  If the Fund gives notice of redemption, and concurrently or thereafter
deposits in trust with the Auction Agent, or segregates in an account at the
Fund's custodian bank for the benefit of the Auction Agent, Deposit Securities
(with a right of substitution) having an aggregate Discounted Value (utilizing
in the case of S&P and S&P Exposure Period of 22 Business Days) equal to the
redemption payment for the shares of AMPS as to which
 
                                      49
<PAGE>
 
notice of redemption has been given, with irrevocable instructions and
authority to pay the redemption price to the record holders thereof, then upon
the date of such deposit or, if no such deposit is made, upon such date fixed
for redemption (unless the Fund shall default in making payment of the
redemption price), all rights of the holders of such shares called for
redemption will cease and terminate, except the right of such holders to
receive the redemption price thereof and any Additional Dividends, but without
interest, and such shares no longer will be deemed to be outstanding. The Fund
will be entitled to receive, from time to time, the interest, if any, earned
on such Deposit Securities deposited with the Auction Agent, and the holders
of any shares so redeemed will have no claim to any such interest. Any funds
so deposited which are unclaimed at the end of one year from such redemption
date will be repaid, upon demand, to the Fund, after which the holders of the
shares of AMPS of such series so called for redemption may look only to the
Fund for payment thereof.
 
  So long as any shares of AMPS are held of record by the nominee of the
Securities Depository (initially Cede), the redemption price for such shares
will be paid on the redemption date to the nominee of the Securities
Depository. The Securities Depository's normal procedures now provide for it
to distribute the amount of the redemption price to Agent Members who, in
turn, are expected to distribute such funds to the persons for whom they are
acting as agent.
 
  Notwithstanding the provisions for redemption described above, no shares of
AMPS shall be subject to optional redemption (i) unless all dividends in
arrears on the outstanding shares of AMPS, and all capital stock of the Fund
ranking on a parity with the AMPS with respect to the payment of dividends or
upon liquidation, have been or are being contemporaneously paid or declared
and set aside for payment and (ii) if redemption thereof would result in the
Fund's failure to maintain Moody's Eligible Assets or S&P Eligible Assets with
an aggregate Discounted Value equal to or greater than the AMPS Basic
Maintenance Amount.
 
LIQUIDATION RIGHTS
 
  Upon any liquidation, dissolution or winding up of the Fund, whether
voluntary or involuntary, the holders of shares of all series of AMPS will be
entitled to receive, out of the assets of the Fund available for distribution
to shareholders, before any distribution or payment is made upon any shares of
Common Stock or any other capital stock of the Fund ranking junior in right of
payment upon liquidation of AMPS, $25,000 per share together with the amount
of any dividends accumulated but unpaid (whether or not earned or declared)
thereon to the date of distribution, and after such payment the holders of
AMPS will be entitled to no other payments except for any Additional
Dividends. If such assets of the Fund shall be insufficient to make the full
liquidation payment on each outstanding series of AMPS and liquidation
payments on any other outstanding class or series of Preferred Stock of the
Fund ranking on a parity with the AMPS as to payment upon liquidation, then
such assets will be distributed among the holders of each such series of AMPS
and the holders of shares of such other class or series ratably in proportion
to the respective preferential amounts to which they are entitled. After
payment of the full amount of liquidation distribution to which they are
entitled, the holders of AMPS will not be entitled to any further
participation in any distribution of assets by the Fund except for any
Additional Dividends. A consolidation, merger or share exchange of the Fund
with or into any other entity or entities or a sale, whether for cash, shares
of stock, securities or properties, of all or substantially all or any part of
the assets of the Fund shall not be deemed or construed to be a liquidation,
dissolution or winding up of the Fund.
 
VOTING RIGHTS
 
  Except as otherwise indicated in this Prospectus and except as otherwise
required by applicable law, holders of shares of AMPS will be entitled to one
vote per share on each matter submitted to a vote of stockholders and will
vote together with holders of shares of Common Stock as a single class.
 
  In connection with the election of the Fund's directors, holders of shares
of AMPS and any other Preferred Stock, voting as a separate class, shall be
entitled at all times to elect two of the Fund's directors, and the remaining
directors will be elected by holders of shares of Common Stock and shares of
AMPS and any other Preferred Stock, voting together as a single class. In
addition, if at any time dividends on outstanding shares of
 
                                      50
<PAGE>
 
AMPS shall be unpaid in an amount equal to at least two full years' dividends
thereon or if at any time holders of any shares of Preferred Stock are
entitled, together with the holders of AMPS, to elect a majority of the
directors of the Fund under the 1940 Act, then the number of directors
constituting the Board of Directors automatically shall be increased by the
smallest number that, when added to the two directors elected exclusively by
the holders of shares of AMPS and any other Preferred Stock as described
above, would constitute a majority of the Board of Directors as so increased
by such smallest number, and at a special meeting of shareholders which will
be called and held as soon as practicable, and at all subsequent meetings at
which directors are to be elected, the holders of shares of AMPS and any other
Preferred Stock, voting as a separate class, will be entitled to elect the
smallest number of additional directors that, together with the two directors
which such holders in any event will be entitled to elect, constitutes a
majority of the total number of directors of the Fund as so increased. The
terms of office of the persons who are directors at the time of that election
will continue. If the Fund thereafter shall pay, or declare and set apart for
payment in full, all dividends payable on all outstanding shares of AMPS and
any other Preferred Stock for all past Dividend Periods, the additional voting
rights of the holders of shares of AMPS and any other Preferred Stock as
described above shall cease, and the terms of office of all of the additional
directors elected by the holders of shares of AMPS and any other Preferred
Stock (but not of the directors with respect to whose election the holders of
Common Stock were entitled to vote or the two directors the holders of shares
of AMPS and any other Preferred Stock have the right to elect in any event)
will terminate automatically.
 
  The affirmative vote of a majority of the votes entitled to be cast by
holders of outstanding shares of AMPS and any other Preferred Stock, voting as
a separate class, will be required to (i) authorize, create or issue any class
or series of stock ranking prior to the AMPS or any other series of Preferred
Stock with respect to the payment of dividends or the distribution of assets
on liquidation, or (ii) amend, alter or repeal the provisions of the Charter,
whether by merger, consolidation or otherwise, so as to adversely affect any
of the contract rights expressly set forth in the Charter of holders of shares
of AMPS or any other Preferred Stock. To the extent permitted under the 1940
Act, in the event shares of more than one series of AMPS are outstanding, the
Fund shall not approve any of the actions set forth in clause (i) or (ii)
which adversely affects the contract rights expressly set forth in the Charter
of a holder of shares of a series of AMPS differently than those of a holder
of shares of any other series of AMPS without the affirmative vote of at least
a majority of votes entitled to be cast by holders of the shares of AMPS of
each series adversely affected and outstanding at such time (each such
adversely affected series voting separately as a class). The Board of
Directors, however, without shareholder approval, may amend, alter or repeal
any or all of the various rating agency guidelines described herein in the
event the Fund receives confirmation from the rating agencies that any such
amendment, alteration or repeal would not impair the ratings then assigned to
shares of AMPS. Unless a higher percentage is provided for under "Description
of Capital Stock--Certain Provisions in the Charter," the affirmative vote of
a majority of the votes entitled to be cast by holders of outstanding shares
of AMPS and any other Preferred Stock, voting as a separate class, will be
required to approve any plan of reorganization (including bankruptcy
proceedings) adversely affecting such shares or any action requiring a vote of
security holders under Section 13(a) of the 1940 Act including, among other
things, changes in the Fund's investment objective or changes in the
investment restrictions described as fundamental policies under "Investment
Objective and Policies." The class vote of holders of shares of AMPS and any
other Preferred Stock described above in each case will be in addition to a
separate vote of the requisite percentage of shares of Common Stock and shares
of AMPS and any other Preferred Stock, voting together as a single class,
necessary to authorize the action in question.
 
  The foregoing voting provisions will not apply to any series of AMPS if, at
or prior to the time when the act with respect to which such vote otherwise
would be required shall be effected, such shares shall have been (i) redeemed
or (ii) called for redemption and sufficient funds shall have been deposited
in trust to effect such redemption.
 
 
                                      51
<PAGE>
 
                            INVESTMENT RESTRICTIONS
 
  The following are fundamental investment restrictions of the Fund and may
not be changed without the approval of the holders of a majority of the Fund's
outstanding shares of Common Stock and outstanding shares of AMPS and any
other Preferred Stock, voting as a single class, and the majority of the
outstanding shares of AMPS and any other Preferred Stock, voting as a separate
class (which for this purpose and under the 1940 Act means the lesser of (i)
67% of the shares of each class of capital stock represented at a meeting at
which more than 50% of the outstanding shares of each class of capital stock
are represented or (ii) more than 50% of the outstanding shares of each class
of capital stock). The Fund may not:
 
    1. Make investments for the purpose of exercising control or management.
 
    2. Purchase or sell real estate, commodities or commodity contracts;
  provided that the Fund may invest in securities secured by real estate or
  interests therein or issued by entities that invest in real estate or
  interest therein, and the Fund may purchase and sell financial futures
  contracts and options thereon.
 
    3. Issue senior securities or borrow money except as permitted by Section
  18 of the 1940 Act.
 
    4. Underwrite securities of other issuers except insofar as the Fund may
  be deemed an underwriter under the Securities Act of 1933, as amended, in
  selling portfolio securities.
 
    5. Make loans to other persons, except that the Fund may purchase
  California Municipal Bonds, Municipal Bonds and other debt securities and
  enter into repurchase agreements in accordance with is investment
  objective, policies and limitations.
 
    6. Invest more than 25% of its total assets (taken at market value at the
  time of each investment) in securities of issuers in a single industry;
  provided that, for purposes of this restriction, states, municipalities and
  their political subdivisions are not considered to be part of any industry.
 
Additional investment restrictions adopted by the Fund, which may be changed
by the Board of Directors without shareholder approval, provide that the Fund
may not:
 
    a. Purchase securities of other investment companies, except to the
  extent that such purchases are permitted by applicable law. Applicable law
  currently prohibits the Fund from purchasing the securities of other
  investment companies except if immediately thereafter not more than (i) 3%
  of the total outstanding voting stock of such company is owned by the Fund,
  (ii) 5% of the Fund's total assets, taken at market value, would be
  invested in any one such company, (iii) 10% of the Fund's total assets,
  taken at market value, would be invested in such securities, and (iv) the
  Fund, together with other investment companies having the same investment
  adviser and companies controlled by such companies, owns not more than 10%
  of the total outstanding stock of any one closed-end investment company.
 
    b. Mortgage, pledge, hypothecate or in any manner transfer, as security
  for indebtedness, any securities owned or held by the Fund except as may be
  necessary in connection with borrowings mentioned in investment restriction
  (3) above or except as may be necessary in connection with transactions in
  financial futures contracts and options thereon.
 
    c. Purchase any securities on margin, except that the Fund may obtain
  such short-term credit as may be necessary for the clearance of purchases
  and sales of portfolio securities (the deposit or payment by the Fund of
  initial or variation margin in connection with financial futures contracts
  and options thereon is not considered the purchase of a security on
  margin).
 
    d. Make short sales of securities or maintain a short position or invest
  in put, call, straddle or spread options, except that the Fund may write,
  purchase and sell options and futures on California Municipal Bonds,
  Municipal Bonds, U.S. Government obligations and related indices or
  otherwise in connection with bona fide hedging activities and may purchase
  and sell Call Rights to require mandatory tender for the purchase of
  related California Municipal Bonds and Municipal Bonds.
 
                                      52
<PAGE>
 
  If a percentage restriction on investment policies or the investment or use
of assets set forth above is adhered to at the time a transaction is effected,
later changes in percentages resulting from changing values will not be
considered a violation.
 
  For so long as shares of AMPS are rated by Moody's, the Fund will not change
these additional investment restrictions unless it receives written
confirmation from Moody's that engaging in such transactions would not impair
the rating then assigned to the shares of AMPS by Moody's.
 
  The Fund has no intention to file a voluntary application for relief under
Federal bankruptcy law or any similar application under state law for so long
as the Fund is solvent and does not foresee becoming insolvent.
 
  The Investment Adviser of the Fund and Merrill Lynch are owned and
controlled by ML & Co. Because of the affiliation of Merrill Lynch with the
Investment Adviser, the Fund is prohibited from engaging in certain
transactions involving Merrill Lynch except pursuant to an exemptive order or
otherwise in compliance with the provisions of the 1940 Act and the rules and
regulations thereunder. Included among such restricted transactions will be
purchases from or sales to Merrill Lynch of securities in transactions in
which it acts as principal. An exemptive order has been obtained that permits
the Fund to effect principal transactions with Merrill Lynch in high quality,
short-term, tax-exempt securities subject to conditions set forth in such
order. The Fund may consider in the future requesting an order permitting
other principal transactions with Merrill Lynch, but there can be no assurance
that such application will be made and, if made, that such order would be
granted.
 
                            DIRECTORS AND OFFICERS
 
  Information about the Directors, executive officers and the portfolio
manager of the Fund, including their ages and their principal occupations
during the last five years is set forth below. Unless otherwise noted, the
address of each Director, executive officer and the portfolio manager is 800
Scudders Mill Road, Plainsboro, New Jersey 08536.
 
  Arthur Zeikel (66)--President and Director (1)(2)--Chairman of the
Investment Adviser and MLAM (which terms, as used herein, include their
corporate predecessors) since 1997; President of the Investment Adviser and
MLAM from 1977 to 1997; Chairman of Princeton Services, Inc. ("Princeton
Services") since 1997 and Director thereof since 1993; President of Princeton
Services from 1993 to 1997; Executive Vice President of ML & Co. since 1990.
 
  Ronald W. Forbes (57)--Director (2)--1400 Washington Avenue, Albany, New
York 12222. Professor of Finance, School of Business, State University of New
York at Albany since 1989; Consultant, Urban Institute, Washington, D.C. since
1995.
 
  Cynthia A. Montgomery (46)--Director (2)--Harvard Business School, Soldiers
Field Road, Boston, Massachusetts 02163. Professor, Harvard Business School
since 1989; Associate Professor, J.L. Kellogg Graduate School of Management,
Northwestern University from 1985 to 1989; Assistant Professor, Graduate
School of Business Administration, The University of Michigan from 1979 to
1985; Director, UNUM Corporation since 1990 and Director of Newell Co. since
1995.
 
  Charles C. Reilly (67)--Director (2)--9 Hampton Harbor Road, Hampton Bays,
New York 11946. Self-employed financial consultant since 1990; President and
Chief Investment Officer of Verus Capital, Inc. from 1979 to 1990; Senior Vice
President of Arnold and S. Bleichroeder, Inc. from 1973 to 1990; Adjunct
Professor, Columbia University Graduate School of Business from 1990 to 1991;
Adjunct Professor, Wharton School, The University of Pennsylvania from 1989 to
1990.
 
  Kevin A. Ryan (65)--Director (2)--127 Commonwealth Avenue, Chestnut Hill,
Massachusetts 02167. Founder and current Director of The Boston University
Center for the Advancement of Ethics and Character; Professor of Education at
Boston University since 1982; formerly taught on the faculties of The
University of Chicago, Stanford University and Ohio State University.
 
                                      53
<PAGE>
 
  Richard R. West (60)--Director (2)--Box 604, Genoa, Nevada 89411, Professor
of Finance since 1984, and Dean from 1984 to 1993, and currently Dean Emeritus
of New York University, Leonard N. Stern School of Business Administration;
Director of Bowne & Co., Inc. (financial printers), Vornado Realty Trust, Inc.
(real estate holding company) and Alexander's Inc. (real estate company).
 
  Terry K. Glenn (58)--Executive Vice President (1)(2)--Executive Vice
President of the Investment Adviser and MLAM since 1983; Executive Vice
President and Director of Princeton Services since 1993; President of
Princeton Funds Distributor, Inc. ("PFD") since 1986 and Director thereof
since 1991; President of Princeton Administrators, L.P. since 1988.
 
  Vincent R. Giordano (54)--Senior Vice President (1)(2)--Senior Vice
President of the Investment Adviser and MLAM since 1984; Senior Vice President
of Princeton Services since 1993.
 
  Donald C. Burke (38)--Vice President (1)(2)--First Vice President of MLAM
since 1997; Vice President of MLAM from 1990 to 1997; Director of Taxation of
MLAM since 1990.
 
  Kenneth A. Jacob (47)--Vice President (1)(2)--First Vice President of MLAM
since 1997; Vice President of MLAM from 1984 to 1997; Vice President of the
Investment Adviser since 1984.
 
  Robert A. DiMella, CFA (32)--Vice President (1)(2)--Assistant Vice President
of MLAM since 1995; Assistant Portfolio Manager of MLAM from 1993 to 1995;
Assistant Portfolio Manager with Prudential Investment Advisers from 1992 to
1993.
 
  Walter O'Connor (36)--Vice President and Portfolio Manager (1)(2)--Director
(Municipal Tax Exempt) of MLAM since 1997; Vice President of MLAM from 1993 to
1997; Assistant Vice President of MLAM from 1991 to 1993.
 
  Gerald M. Richard (49)--Treasurer (1)(2)--Senior Vice President and
Treasurer of the Investment Adviser and MLAM since 1984; Senior Vice President
and Treasurer of Princeton Services since 1993; Vice President of PFD since
1981 and Treasurer of MLFD since 1984.
 
  Alice A. Pellegrino (38)--Secretary (1)(2)--Attorney with MLAM since 1997;
Associate with Kirkpatrick & Lockhart LLP from 1992 to 1997.
- --------
(1) Interested person, as defined in the 1940 Act, of the Fund.
(2) Such Director or officer is a director, trustee, officer of one or more
    additional investment companies for which the Investment Adviser or its
    affiliate, MLAM, acts as investment adviser or manager.
 
  In connection with the election of the Fund's Directors, holders of shares
of AMPS and other Preferred Stock, voting as a separate class, are entitled to
elect two of the Fund's Directors, and the remaining Directors will be elected
by holders of Common Stock and Preferred Stock voting together as a single
class. Messrs. London and May have been designated as the Directors to be
elected by holders of the Preferred Stock. See "Description of Capital Stock."
 
COMPENSATION OF DIRECTORS
 
  The Fund pays each Director not affiliated with the Investment Adviser a fee
of $2,000 per year plus $200 per meeting attended, together with such
Director's actual out-of-pocket expenses relating to attendance at meetings.
The Fund also pays members of its Audit Committee, which consists of all of
the Directors not affiliated with the Investment Adviser, an annual fee of
$800. The Chairman of the Audit Committee receives an additional annual fee of
$1,000.
 
                                      54
<PAGE>
 
  The following table sets forth compensation to be paid by the Fund to the
non-affiliated Directors projected through the end of the Fund's first full
fiscal year and for the calendar year ended December 31, 1997 the aggregate
compensation paid by all investment companies advised by the Investment
Adviser and its affiliate, MLAM ("FAM/MLAM Advised Funds"), to the non-
affiliated Directors.
 
<TABLE>
<CAPTION>
                                                              TOTAL COMPENSATION
                                              PENSION OR        FROM FUND AND
                              AGGREGATE   RETIREMENT BENEFITS  FAM/MLAM ADVISED
                             COMPENSATION ACCRUED AS PART OF    FUNDS PAID TO
   NAME OF DIRECTOR           FROM FUND      FUND EXPENSE         DIRECTORS
   ----------------          ------------ ------------------- ------------------
   <S>                       <C>          <C>                 <C>
   Ronald W. Forbes(/1/)...     $3,600           None              $153,500
   Cynthia A.
    Montgomery(/1/)........     $3,600           None              $153,500
   Charles C. Reilly(/1/)..     $4,600           None              $313,000
   Kevin A. Ryan(/1/)......     $3,600           None              $153,000
   Richard R. West(/1/)....     $3,600           None              $299,000
</TABLE>
- --------
(1) The Directors serve on the boards of MLAM/FAM Advised Funds as follows:
    Mr. Forbes (33 registered investment companies consisting of 46
    portfolios); Ms. Montgomery (33 registered investment companies consisting
    of 46 portfolios); Mr. Reilly (52 registered investment companies
    consisting of 65 portfolios); Mr. Ryan (33 registered investment companies
    consisting of 46 portfolios); and Mr. West (54 registered investment
    companies consisting of 79 portfolios).
 
                INVESTMENT ADVISORY AND MANAGEMENT ARRANGEMENTS
 
  The Investment Adviser is an affiliate of MLAM and is owned and controlled
by ML & Co., a financial services holding company. The Investment Adviser will
provide the Fund with investment advisory and management services. The Asset
Management Group of ML & Co. (which includes the Investment Adviser) acts as
the investment adviser for over 100 other registered investment companies and
offers portfolio management and portfolio analysis services to individuals and
institutional accounts. As of August 1998, the Asset Management Group had a
total of approximately $473 billion in investment company and other portfolio
assets under management (approximately $38 billion of which were invested in
municipal securities). This amount includes assets managed for certain
affiliates of the Investment Adviser. The principal business address of the
Investment Adviser is 800 Scudders Mill Road, Plainsboro, New Jersey 08536.
 
  The Investment Advisory Agreement with the Investment Adviser (the
"Investment Advisory Agreement") provides that, subject to the supervision of
the Board of Directors of the Fund, the Investment Adviser is responsible for
the actual management of the Fund's portfolio. The responsibility for making
decisions to buy, sell or hold a particular security rests with the Investment
Adviser, subject to review by the Board of Directors. The Fund's portfolio
manager will consider analyses from various sources (including brokerage firms
with which the Fund does business), make the necessary investment decisions,
and place orders for transactions accordingly. The Investment Adviser will
also be responsible for the performance of certain administrative and
management services for the Fund. Walter O'Connor is the portfolio manager for
the Fund and is primarily responsible for the Fund's day-to-day management.
 
  For the services provided by the Investment Adviser under the Investment
Advisory Agreement, the Fund will pay a monthly fee at an annual rate of 0.55
of 1% of the Fund's average weekly net assets (i.e., the average weekly value
of the total assets of the Fund, including proceeds from the issuance of
shares of Preferred Stock, minus the sum of accrued liabilities of the Fund
and accumulated dividends on the shares of Preferred Stock). For purposes of
this calculation, average weekly net assets are determined at the end of each
month on the basis of the average net assets of the Fund for each week during
the month. The assets for each weekly period are determined by averaging the
net assets at the last business day of a week with the net assets at the last
business day of the prior week.
 
                                      55
<PAGE>
 
  The Investment Advisory Agreement obligates the Investment Adviser to
provide investment advisory services and to pay all compensation of and
furnish office space for officers and employees of the Fund connected with
investment and economic research, trading and investment management of the
Fund, as well as the compensation of all Directors of the Fund who are
affiliated persons of the Investment Adviser or any of its affiliates. The
Fund pays all other expenses incurred in the operation of the Fund, including,
among other things, expenses for legal and auditing services, taxes, costs of
printing proxies, listing fees, stock certificates and shareholder reports,
charges of the custodian and the transfer and dividend disbursing agent and
registrar, fees and expenses with respect to the issuance of Preferred Stock,
Securities and Exchange Commission (the "Commission") fees, fees and expenses
of unaffiliated Directors, accounting and pricing costs, insurance, interest,
brokerage costs, litigation and other extraordinary or non-recurring expenses,
mailing and other expenses properly payable by the Fund. Accounting services
are provided to the Fund by the Investment Adviser, and the Fund reimburses
the Investment Adviser for its costs in connection with such services.
 
  Unless earlier terminated as described below, the Investment Advisory
Agreement will remain in effect for a period of two years from the date of
execution and will remain in effect from year to year thereafter if approved
annually (a) by the Board of Directors of the Fund or by a majority of the
outstanding shares of the Fund and (b) by a majority of the Directors who are
not parties to such contract or interested persons (as defined in the 1940
Act) of any such party. Such contract is not assignable and may be terminated
without penalty on 60 days' written notice at the option of either party
thereto or by the vote of the shareholders of the Fund.
 
  Securities held by the Fund may also be held by, or be appropriate
investments for, other funds or investment advisory clients for which the
Investment Adviser or its affiliates act as an adviser. Because of different
objectives or other factors, a particular security may be bought for one or
more clients when one or more clients are selling the same security. If
purchases or sales of securities by the Investment Adviser for the Fund or
other funds for which it acts as investment adviser or for other advisory
clients arise for consideration at or about the same time, transactions in
such securities will be made, insofar as feasible, for the respective funds
and clients in a manner deemed equitable to all. To the extent that
transactions on behalf of more than one client of the Investment Adviser or
its affiliate during the same period may increase the demand for securities
being purchased or the supply of securities being sold, there may be an
adverse effect on price.
 
CODE OF ETHICS
 
  The Board of Directors of the Fund has adopted a Code of Ethics pursuant to
Rule 17j-1 under the 1940 Act that incorporates the Code of Ethics of the
Investment Adviser (together, the "Codes"). The Codes significantly restrict
the personal investing activities of all employees of the Investment Adviser
and, as described below, impose additional, more onerous, restrictions on Fund
investment personnel.
 
  The Codes require that all employees of the Investment Adviser preclear any
personal securities investment (with limited exceptions, such as U.S.
Government securities). The preclearance requirement and associated procedures
are designed to identify any substantive prohibition or limitation applicable
to the proposed investment. The substantive restrictions applicable to all
employees of the Investment Adviser include a ban on acquiring any securities
in a "hot" initial public offering and a prohibition from profiting on short-
term trading securities. In addition, no employee may purchase or sell any
security that at the time is being purchased or sold (as the case may be), or
to the knowledge of the employee is being considered for purchase or sale, by
any fund advised by the Investment Adviser. Furthermore, the Codes provide for
trading "blackout periods" that prohibit trading by investment personnel of
the Fund within periods of trading by the Fund in the same (or equivalent)
security (15 or 30 days depending upon the transaction).
 
                            PORTFOLIO TRANSACTIONS
 
  Subject to policies established by the Board of Directors of the Fund, the
Investment Adviser is primarily responsible for the execution of the Fund's
portfolio transactions. In executing such transactions, the Investment Adviser
seeks to obtain the best results for the Fund, taking into account such
factors as price (including the
 
                                      56
<PAGE>
 
applicable brokerage commission or dealer spread), size of order, difficulty
of execution and operational facilities of the firm involved and the firm's
risk in positioning a block of securities. While the Investment Adviser
generally seeks reasonably competitive commission rates, the Fund does not
necessarily pay the lowest commission or spread available.
 
  The Fund has no obligation to deal with any broker or dealer in the
execution of transactions in portfolio securities. Subject to obtaining the
best price and execution, securities firms that provided supplemental
investment research to the Investment Adviser, including Merrill Lynch, may
receive orders for transactions by the Fund. Information so received will be
in addition to and not in lieu of the services required to be performed by the
Investment Adviser under the Investment Advisory Agreement, and the expenses
of the Investment Adviser will not necessarily be reduced as a result of the
receipt of such supplemental information.
 
  The securities in which the Fund primarily will invest are traded in the
over-the-counter markets, and the Fund intends to deal directly with the
dealers who make markets in the securities involved, except in those
circumstances where better prices and execution are available elsewhere. Under
the 1940 Act, except as permitted by exemptive order, persons affiliated with
the Fund are prohibited from dealing with the Fund as principal in the
purchase and sale of securities. Since transactions in the over-the-counter
market usually involve transactions with dealers acting as principal for their
own account, the Fund will not deal with affiliated persons, including Merrill
Lynch and its affiliates, in connection with such transactions except that,
pursuant to an exemptive order obtained by the Investment Adviser, the Fund
may engage in principal transactions with the Underwriter in high quality,
short-term, tax-exempt securities. See "Investment Restrictions." An
affiliated person of the Fund may serve as its broker in over-the-counter
transactions conducted on an agency basis.
 
  The Fund may also purchase tax-exempt debt instruments in individually
negotiated transactions with the issuer. Because an active trading market may
not exist for such securities, the prices that the Fund may pay for these
securities or receive on their resale may be lower than that for similar
securities with a more liquid market.
 
PORTFOLIO TURNOVER
 
  Generally, the Fund does not purchase securities for short-term trading
profits. However, the Fund may dispose of securities without regard to the
time they have been held when such action, for defensive or other reasons,
appears advisable to the Investment Adviser. While it is not possible to
predict turnover rates with any certainty, at present it is anticipated that
the Fund's annual portfolio turnover rate, under normal circumstances after
the Fund's portfolio is invested in accordance with its investment objective,
will be less than 100%. The portfolio turnover rate is calculated by dividing
the lesser of purchases or sales of portfolio securities for the particular
fiscal year by the monthly average of the value of the portfolio securities
owned by the Fund during the particular fiscal year. For purposes of
determining this rate, all securities whose maturities at the time of
acquisition are one year or less are excluded.
 
                                     TAXES
 
GENERAL
 
  The Fund intends to elect and to qualify for the special tax treatment
afforded regulated investment companies ("RICs") under the Internal Revenue
Code of 1986, as amended (the "Code"). As long as it so qualifies, in any
taxable year in which it distributes at least 90% of its taxable net income
and 90% of its tax-exempt net income (see below), the Fund (but not its
shareholders) will not be subject to Federal income tax to the extent that it
distributes its net investment income and net realized capital gains. The Fund
intends to distribute substantially all of such income.
 
  The Code requires a RIC to pay a nondeductible 4% excise tax to the extent
the RIC does not distribute, during each calendar year, 98% of its ordinary
income, determined on a calendar year basis, and 98% of its
 
                                      57
<PAGE>
 
capital gains, determined, in general, on an October 31 year-end, plus certain
undistributed amounts from previous years. The required distributions,
however, are based only on the taxable income of a RIC. The excise tax,
therefore, generally will not apply to the tax-exempt income of a RIC, such as
the Fund, that pays exempt-interest dividends.
 
  The Internal Revenue Service (the "IRS"), in a revenue ruling, held that
certain auction rate preferred stock would be treated as stock for Federal
income tax purposes. The terms of the AMPS are substantially similar, but not
identical, to the auction rate preferred stock discussed in the revenue
ruling, and in the opinion of Brown & Wood llp, counsel to the Fund, the
shares of AMPS will constitute stock of the Fund and distributions with
respect to shares of AMPS (other than distributions in redemption of shares of
AMPS subject to Section 302(b) of the Code) will constitute dividends to the
extent of the Fund's current and accumulated earnings and profits as
calculated for Federal income tax purposes. Nevertheless, it is possible that
the IRS might take a contrary position, asserting, for example, that the
shares of AMPS constitute debt of the Fund. If this position were upheld, the
discussion of the treatment of distributions below would not apply. Instead,
distributions by the Fund to holders of shares of AMPS would constitute
interest, whether or not they exceeded the earnings and profits of the Fund,
would be included in full in the income of the recipient and would be taxed as
ordinary income. Counsel believes that such a position, if asserted by the
IRS, would be unlikely to prevail.
 
  The Fund intends to qualify to pay "exempt-interest dividends" as defined in
Section 852(b)(5) of the Code. Under such section if, at the close of each
quarter of its taxable year, at least 50% of the value of its total assets
consists of obligations exempt from Federal income tax ("tax-exempt
obligations") under Section 103(a) of the Code (relating generally to
obligations of a state or local governmental unit), the Fund shall be
qualified to pay exempt-interest dividends to its shareholders. Exempt-
interest dividends are dividends or any part thereof paid by the Fund which
are attributable to interest on tax-exempt obligations and designated by the
Fund as exempt-interest dividends in a written notice mailed to the Fund's
shareholders within 60 days after the close of its taxable year. To the extent
that the dividends distributed to the Fund's shareholders are derived from
interest income exempt from tax under Code Section 103(a) and are properly
designated as exempt-interest dividends, they will be excludable from a
shareholder's gross income for Federal tax purposes. Exempt-interest dividends
are included, however, in determining the portion, if any, of a person's
social security and railroad retirement benefits subject to Federal income
taxes. Each shareholder is advised to consult a tax adviser with respect to
whether exempt-interest dividends retain the exclusion under Code Section
103(a) if such shareholder would be treated as a "substantial user" or
"related person" under Code Section 147(a) with respect to property financed
with the proceeds of an issue of "industrial development bonds" or "private
activity bonds," if any, held by the Fund.
 
  The portion of exempt-interest dividends paid from interest received by the
Fund from California Municipal Bonds also will be exempt from California
income tax. However, exempt-interest dividends paid to a corporate shareholder
subject to California state franchise tax will not be exempt from California
taxation. Shareholders subject to income taxation by states other than
California will realize a lower after-tax rate of return than California
shareholders since the dividends distributed by the Fund generally will not be
exempt, to any significant degree, from income taxation by such other states.
The Fund will inform shareholders annually as to the portion of the Fund's
distributions which constitutes exempt-interest dividends and the portion
which is exempt from California income taxes. Interest on indebtedness
incurred or continued to purchase or carry Fund shares is not deductible for
Federal or California income tax purposes to the extent attributable to
exempt-interest dividends.
 
  To the extent that the Fund's distributions are derived from interest on its
taxable investments or from an excess of net short-term capital gains over net
long-term capital losses ("ordinary income dividends"), such distributions are
considered ordinary income for Federal income tax purposes. Distributions, if
any, from an excess of net long-term capital gains over net short-term capital
losses derived from the sale of securities or from certain transactions in
futures or options ("capital gain dividends") are taxable as long-term capital
gains for Federal income tax purposes, regardless of the length of time the
shareholder has owned Fund shares and, for
 
                                      58
<PAGE>
 
California income tax purposes, are treated as capital gains which are taxed
at ordinary income tax rates. Recent legislation created additional categories
of capital gains taxable at different rates. Additional legislation eliminates
the highest 28% category for most sales of capital assets occurring after
December 31, 1997. Generally not later than 60 days after the close of its
taxable year, the Fund will provide its shareholders with a written notice
designating the amounts of any exempt-interest dividends, ordinary income
dividends or capital gain dividends, as well as the amount of capital gain
dividends in the different categories of capital gain referred to above.
Distributions by the Fund, whether from exempt-interest income, ordinary
income or capital gains, will not be eligible for the dividends received
deduction allowed to corporations under the Code.
 
  All or a portion of the Fund's gain from the sale or redemption of tax-
exempt obligations purchased at a market discount will be treated as ordinary
income rather than capital gain. This rule may increase the amount of ordinary
income dividends received by shareholders. Distributions in excess of the
Fund's earnings and profits will first reduce the adjusted tax basis of a
holder's shares and, after such adjusted tax basis is reduced to zero, will
constitute capital gains to such holder (assuming the shares are held as a
capital asset). Any loss upon the sale or exchange of Fund shares held for six
months or less will be disallowed to the extent of any exempt-interest
dividends received by the shareholder. In addition, any such loss that is not
disallowed under the rule stated above will be treated as long-term capital
loss to the extent of any capital gain dividends received by the shareholder.
If the Fund pays a dividend in January which was declared in the previous
October, November or December to shareholders of record on a specified date in
one of such months, then such dividend will be treated for tax purposes as
being paid by the Fund and received by its shareholders on December 31 of the
year in which such dividend was declared.
 
  The IRS has taken the position in a revenue ruling that if a RIC has two or
more classes of shares, it may designate distributions made to each class in
any year as consisting of no more than such class's proportionate share of
particular types of income, including exempt interest and net long-term
capital gains (including the additional categories of capital gains). A
class's proportionate share of a particular type of income is determined
according to the percentage of total dividends paid by the RIC during such
year that was paid to such class. Thus, the Fund is required to allocate a
portion of its net capital gains (including the additional categories of
capital gains) and other taxable income to the shares of AMPS of each series.
The Fund generally will notify the Auction Agent of the amount of any net
capital gains and other taxable income to be included in any dividend on
shares of AMPS prior to the Auction establishing the Applicable Rate for such
dividend. Except for the portion of any dividend that it informs the Auction
Agent will be treated as capital gains or other taxable income, the Fund
anticipates that the dividends paid on the shares of AMPS will constitute
exempt-interest dividends. The amount of net capital gains and ordinary income
allocable to shares of AMPS (the "taxable distribution") will depend upon the
amount of such gains and income realized by the Fund and the total dividends
paid by the Fund on shares of Common Stock and shares of the two series of
AMPS during a taxable year, but the taxable distribution generally is not
expected to be significant.
 
  In the opinion of Brown & Wood llp, counsel to the Fund, under current law
the manner in which the Fund intends to allocate items of tax-exempt income,
net capital gains (including additional categories of capital gains), and
other taxable income, if any, among shares of Common Stock and shares of the
two series of AMPS will be respected for Federal income tax purposes. However,
the tax treatment of Additional Dividends may affect the Fund's calculation of
each class' allocable share of capital gains and other taxable income. See
"Tax Treatment of Additional Dividends." In addition, there is currently no
direct guidance from the IRS or other sources specifically addressing whether
the Fund's method for allocating tax-exempt income, net capital gains
(including additional categories of capital gain), and other taxable income
among shares of Common Stock and shares of the two series of AMPS will be
respected for Federal income tax purposes, and it is possible that the IRS
could disagree with counsel's opinion and attempt to reallocate the Fund's net
capital gains or other taxable income. In the event of a reallocation, some of
the dividends identified by the Fund as exempt-interest dividends to holders
of shares of AMPS may be recharacterized as additional capital gains or other
taxable income. In the event of such recharacterization, the Fund would not be
required to make payments to such shareholders to offset the tax effect of
such reallocation. In addition, a reallocation may cause the Fund to be liable
for income tax and
 
                                      59
<PAGE>
 
excise tax on any reallocated taxable income. Brown & Wood llp has advised the
Fund that, in its opinion, if the IRS were to challenge in court the Fund's
allocations of income and gain, the IRS would be unlikely to prevail. A holder
should be aware, however, that the opinion of Brown & Wood llp represents only
its best legal judgment and is not binding on the IRS or the courts.
 
  The Code subjects interest received on certain otherwise tax-exempt
securities to an alternative minimum tax. The alternative minimum tax will
apply to interest received on "private activity bonds" issued after August 7,
1986. Private activity bonds are bonds which, although tax-exempt, are used
for purposes other than those generally performed by governmental units and
which benefit non-governmental entities (e.g., bonds used for industrial
development or housing purposes). Income received on such bonds is classified
as an item of "tax preference" which could subject certain investors in such
bonds, including shareholders of the Fund, to an alternative minimum tax. The
Fund intends to purchase such "private activity bonds" and will report to
shareholders within 60 days after its taxable year-end the portion of its
dividends declared during the year which constitutes an item of tax preference
for alternative minimum tax purposes. The Code further provides that
corporations are subject to an alternative minimum tax based, in part, on
certain differences between taxable income as adjusted for other tax
preferences and the corporation's "adjusted current earnings", which more
closely reflect a corporation's economic income. Because an exempt-interest
dividend paid by the Fund will be included in adjusted current earnings, a
corporate shareholder may be required to pay an alternative minimum tax on
exempt-interest dividends paid by the Fund.
 
  The Fund may invest in instruments the return on which includes
nontraditional features such as indexed principal or interest payments
("nontraditional instruments"). These instruments may be subject to special
tax rules under which the Fund may be required to accrue and distribute income
before amounts due under the obligations are paid. In addition, it is possible
that all or a portion of the interest payments on such nontraditional
instruments could be recharacterized as taxable ordinary income.
 
  If at any time when shares of AMPS are outstanding the Fund does not meet
the asset coverage requirements of the 1940 Act, the Fund will be required to
suspend distributions to holders of Common Stock until the asset coverage is
restored. See "Description of AMPS--Restrictions on Dividends and Other
Payments." This may prevent the Fund from distributing at least 90% of its net
income, and may, therefore, jeopardize the Fund's qualification for taxation
as a RIC. Upon any failure to meet the asset coverage requirements of the 1940
Act, the Fund, in its sole discretion, may, and under certain circumstances
will be required to, redeem shares of AMPS in order to maintain or restore the
requisite asset coverage and avoid the adverse consequences to the Fund and
its shareholders of failing to qualify as a RIC. See "Description of AMPS--
Redemption." There can be no assurance, however, that any such action would
achieve such objectives.
 
  As noted above, the Fund must distribute annually at least 90% of its net
taxable and tax-exempt interest income. A distribution will only be counted
for this purpose if it qualifies for the dividends paid deduction under the
Code. Some types of Preferred Stock that the Fund currently contemplates
issuing may raise an issue as to whether distributions on such Preferred Stock
are "preferential" under the Code and therefore not eligible for the dividends
paid deduction. The Fund intends to issue Preferred Stock that counsel advises
will not result in the payment of a preferential dividend and may seek a
private letter ruling from the IRS to that effect. If the Fund ultimately
relies solely on a legal opinion when it issues such Preferred Stock, there is
no assurance that the IRS would agree that dividends on the Preferred Stock
are not preferential. If the IRS successfully disallowed the dividends paid
deduction for dividends on the Preferred Stock, the Fund could lose the
benefit of the special treatment afforded RICs under the Code. In this case,
dividends paid by the Fund would not be exempt from Federal income taxes.
Additionally, the Fund would be subject to the alternative minimum tax.
 
  Under certain Code provisions, some taxpayers may be subject to a 31%
withholding tax on certain ordinary income dividends and on capital gain
dividends and redemption payments ("backup withholding"). Generally,
shareholders subject to backup withholding will be those for whom no certified
taxpayer identification number is
 
                                      60
<PAGE>
 
on file with the Fund or who, to the Fund's knowledge, have furnished an
incorrect number. When establishing an account, an investor must certify under
penalty of perjury that such number is correct and that such investor is not
otherwise subject to backup withholding.
 
  Ordinary income dividends paid to shareholders who are nonresident aliens or
foreign entities will be subject to a 30% United States withholding tax under
existing provisions of the Code applicable to foreign individuals and entities
unless a reduced rate of withholding or a withholding exemption is provided
under applicable treaty law. Nonresident shareholders are urged to consult
their own tax advisers concerning the applicability of the United States
withholding tax.
 
  The Code provides that every shareholder required to file a tax return must
include for information purposes on such return the amount of exempt-interest
dividends received from all sources (including the Fund) during the taxable
year.
 
TAX TREATMENT OF ADDITIONAL DIVIDENDS
 
  If the Fund makes a Retroactive Taxable Allocation, it will pay Additional
Dividends to holders of shares of AMPS who are subject to the Retroactive
Taxable Allocation. See "Description of AMPS--Dividends--Additional
Dividends." The Federal income tax consequences of Additional Dividends under
existing law are uncertain. The Fund intends to treat a holder as receiving a
dividend distribution in the amount of any Additional Dividend only as and
when such Additional Dividend is paid. An Additional Dividend generally will
be designated by the Fund as an exempt-interest divided except as otherwise
required by applicable law. However, the IRS may assert that all or part of an
Additional Dividend is a taxable dividend either in the taxable year for which
the Retroactive Taxable Allocation is made or in the taxable year in which the
Additional Dividend is paid.
 
TAX TREATMENT OF OPTIONS AND FUTURES TRANSACTIONS
 
  The Fund may purchase or sell municipal bond index financial futures
contracts and interest rate financial futures contracts on U.S. Government
securities. The Fund may also purchase and write call and put options on such
financial futures contracts. In general, unless an election is available to
the Fund or an exception applies, such options and financial futures contracts
that are "Section 1256 contracts" will be "marked to market" for Federal
income tax purposes at the end of each taxable year, i.e., each such option or
financial futures contract will be treated as sold for its fair market value
on the last day of the taxable year, and any gain or loss attributable to
Section 1256 contracts will be 60% long-term and 40% short-term capital gain
or loss. Application of these rules to Section 1256 contracts held by the Fund
may alter the timing and character of distributions to shareholders. The mark-
to-market rules outlined above, however, will not apply to certain
transactions entered into by the Fund solely to reduce the risk of changes in
price or interest rates with respect to its investments.
 
  Code Section 1092, which applies to certain "straddles," may affect the
taxation of the Fund's sales of securities and transactions in financial
futures contracts and related options. Under Section 1092, the Fund may be
required to postpone recognition for tax purposes of losses incurred in
certain sales of securities and certain closing transactions in financial
futures contracts or the related options.
 
                               ----------------
 
  The foregoing is a general and abbreviated summary of the applicable
provisions of the Code and Treasury Regulations and California income and
corporate franchise tax laws presently in effect. For the complete provisions,
reference should be made to the pertinent Code sections, the Treasury
Regulations promulgated thereunder and California income and corporate
franchise tax laws. The Code and the Treasury Regulations, as well as the
California tax laws, are subject to change by legislative, judicial or
administrative action either prospectively or retroactively.
 
  Shareholders are urged to consult their tax advisers regarding specific
questions as to Federal, foreign, state or local taxes.
 
                                      61
<PAGE>
 
                                NET ASSET VALUE
 
  Net asset value per share of Common Stock is determined as of 15 minutes
after the close of business on the New York Stock Exchange (the "NYSE")
(generally, 4:00 p.m. New York time) on the last Business Day of each week.
For purposes of determining the net asset value of a share of Common Stock,
the value of the securities held by the Fund plus any cash or other assets
(including interest accrued but not yet received) minus all liabilities
(including accrued expenses) and the aggregate liquidation value of the
outstanding shares of AMPS is divided by the total number of shares of Common
Stock outstanding at such time. Expenses, including the fees payable to the
Investment Adviser, are accrued daily.
 
  The California Municipal Bonds and Municipal Bonds in which the Fund invests
are traded primarily in the over-the-counter markets. In determining net asset
value, the Fund utilizes the valuations of portfolio securities furnished by a
pricing service approved by the Board of Directors. The pricing service
typically values portfolio securities at the bid price or the yield equivalent
when quotations are readily available. California Municipal Bonds and
Municipal Bonds for which quotations are not readily available are valued at
fair market value on a consistent basis as determined by the pricing service
using a matrix system to determine valuations. The procedures of the pricing
service and its valuations are reviewed by the officers of the Fund under the
general supervision of the Board of Directors. The Board of Directors has
determined in good faith that the use of a pricing service is a fair method of
determining the valuation of portfolio securities. Positions in futures
contracts are valued at closing prices for such contracts established by the
exchange on which they are traded, or if market quotations are not readily
available, are valued at fair value on a consistent basis using methods
determined in good faith by the Board of Directors.
 
  The Fund determines and makes available for publication the net asset value
of its Common Stock weekly. Currently, the net asset values of shares of
publicly traded closed-end investment companies investing in debt securities
are published in Barron's, the Monday edition of The Wall Street Journal, and
the Monday and Saturday editions of The New York Times.
 
                         DESCRIPTION OF CAPITAL STOCK
 
  The Fund is authorized to issue 200,000,000 shares of capital stock, par
value $.10 per share, all of which shares were initially classified as Common
Stock. The Board of Directors is authorized, however, to classify or
reclassify any unissued shares of capital stock by setting or changing the
preferences, conversion or other rights, voting powers, restrictions,
limitations as to dividends, qualifications, or terms or conditions of
redemption. In this regard, the Board of Directors has reclassified
shares of unissued Common Stock as AMPS. For a description of the shares of
AMPS, see "Description of AMPS."
 
  The following table shows the amount of (i) capital stock authorized, (ii)
capital stock held by the Fund for its own account and (iii) capital stock
outstanding for each class of authorized securities of the Fund as of October
  , 1998.
 
<TABLE>
<CAPTION>
                                                                     AMOUNT
                                                                   OUTSTANDING
                                                     AMOUNT HELD  (EXCLUSIVE OF
                                                       BY FUND     AMOUNT HELD
                                           AMOUNT    FOR ITS OWN BY FUND FOR ITS
TITLE OF CLASS                           AUTHORIZED    ACCOUNT    OWN ACCOUNT)
- --------------                           ----------- ----------- ---------------
<S>                                      <C>         <C>         <C>
Common Stock............................                 -0-
Auction Market Preferred Stock..........                 -0-              -0-
</TABLE>
 
                                      62
<PAGE>
 
COMMON STOCK
 
  Holders of Common Stock are entitled to share equally in dividends declared
by the Board of Directors payable to holders of Common Stock and in the net
assets of the Fund available for distribution to holders of Common Stock after
payment of the preferential amounts payable to holders of any outstanding
Preferred Stock. Neither holders of Common Stock nor holders of Preferred
Stock have pre-emptive or conversion rights and shares of Common Stock are not
redeemable. The outstanding shares of Common Stock are fully paid and non-
assessable.
 
  Holders of Common Stock are entitled to one vote for each share held and
will vote with the holders of any outstanding shares of AMPS or other
Preferred Stock on each matter submitted to a vote of holders of Common Stock,
except as described under "Description of AMPS--Voting Rights."
 
  Shareholders are entitled to one vote for each share held. The shares of
Common Stock, AMPS and any other Preferred Stock do not have cumulative voting
rights, which means that the holders of more than 50% of the shares of Common
Stock, AMPS and any other Preferred Stock voting for the election of Directors
can elect all of the Directors standing for election by such holders, and, in
such event, the holders of the remaining shares of Common Stock, AMPS and any
other Preferred Stock will not be able to elect any of such Directors.
 
  So long as any shares of AMPS or any other Preferred Stock are outstanding,
holders of Common Stock will not be entitled to receive any dividends of or
other distributions from the Fund unless all accumulated dividends on
outstanding shares of AMPS and any other Preferred Stock have been paid, and
unless asset coverage (as defined in the 1940 Act) with respect to such AMPS
and any other Preferred Stock would be at least 200% after giving effect to
such distributions. See "Description of AMPS--Restrictions on Dividends and
Other Payments."
 
  The Fund will send unaudited reports at least semi-annually and audited
financial statements annually to all of its shareholders.
 
  The shares of Common Stock commenced trading on the NYSE on September   ,
1998. At        , 1998, the net asset value per share of Common Stock was
$     , and the closing price per share of Common Stock on the NYSE was
$     .
 
PREFERRED STOCK
 
  Under the Articles Supplementary, the Fund is authorized to issue an
aggregate of       shares of AMPS. See "Description of AMPS." Under the 1940
Act, the Fund is permitted to have outstanding more than one series of
Preferred Stock as long as no single series has priority over another series
as to the distribution of assets of the Fund or the payment of dividends.
Neither holders of Common Stock nor holders of Preferred Stock have pre-
emptive rights to purchase any shares of AMPS or any other Preferred Stock
that might be issued. It is anticipated that the net asset value per share of
the AMPS will equal its original purchase price per share plus accumulated
dividends per share.
 
CERTAIN PROVISIONS OF THE CHARTER
 
  The Fund's Charter includes provisions that could have the effect of
limiting the ability of other entities or persons to acquire control of the
Fund or to change the composition of its Board of Directors and could have the
effect of depriving shareholders of an opportunity to sell their shares at a
premium over prevailing market prices by discouraging a third party from
seeking to obtain control of the Fund. A director may be removed from office
with or without cause but only by vote of the holders of at least 66 2/3% of
the votes entitled to be voted on the matter. A director elected by all of the
holders of capital stock may be removed only by action of such holders, and a
director elected by the holders of AMPS and any other Preferred Stock may be
removed only by action of AMPS and any other Preferred Stock.
 
                                      63
<PAGE>
 
  In addition, the Charter requires the favorable vote of the holders of at
least 66 2/3% of the Fund's shares of capital stock, then entitled to be
voted, voting as a single class, to approve, adopt or authorize the following:
 
    (i) a merger or consolidation or statutory share exchange of the Fund
  with any other corporation,
 
    (ii) a sale of all or substantially all of the Fund's assets (other than
  in the regular course of the Fund's investment activities), or
 
    (iii) a liquidation or dissolution of the Fund,
 
unless such action has been approved, adopted or authorized by the affirmative
vote of at least two-thirds of the total number of Directors fixed in
accordance with the by-laws, in which case the affirmative vote of a majority
of all of the votes entitled to be cast by shareholders of the Fund, voting as
a single class, is required. Such approval, adoption or authorization of the
foregoing would also require the favorable vote of at least a majority of the
Fund's shares of Preferred Stock then entitled to be voted, including the
AMPS, voting as a separate class.
 
  In addition, conversion of the Fund to an open-end investment company would
require an amendment to the Fund's Charter. The amendment would have to be
declared advisable by the Board of Directors prior to its submission to
shareholders. Such an amendment would require the favorable vote of the
holders of at least 66 2/3% of the Fund's outstanding shares of capital stock
(including the AMPS and any other Preferred Stock) entitled to be voted on the
matter, voting as a single class (or a majority of such shares if the
amendment was previously approved, adopted or authorized by at least two-
thirds of the total number of Directors fixed in accordance with the by-laws),
and, the affirmative vote of at least a majority of outstanding shares of
Preferred Stock of the Fund (including the AMPS), voting as a separate class.
Such a vote also would satisfy a separate requirement in the 1940 Act that the
change be approved by the shareholders. Shareholders of an open-end investment
company may require the company to redeem their shares of common stock at any
time (except in certain circumstances as authorized by or under the 1940 Act)
at their net asset value, less such redemption charge, if any, as might be in
effect at the time of a redemption. All redemptions will be made in cash. If
the Fund is converted to an open-end investment company, it could be required
to liquidate portfolio securities to meet requests for redemption. Conversion
to an open-end investment company would also require redemption of all
outstanding shares of Preferred Stock (including the AMPS) and would require
changes in certain of the Fund's investment policies and restrictions, such as
those relating to the issuance of senior securities, the borrowing of money
and the purchase of illiquid securities.
 
  The Board of Directors has determined that the 66 2/3% voting requirements
described above, which are greater than the minimum requirements under
Maryland law or the 1940 Act, are in the best interests of shareholders
generally. Reference should be made to the Charter on file with the Commission
for the full text of these provisions.
 
                                   CUSTODIAN
 
  The Fund's securities and cash are held under a custody agreement with State
Street Bank and Trust Company, 225 Franklin Street, Boston, Massachusetts
02110.
 
                                 UNDERWRITING
 
  The Underwriter has agreed, subject to the terms and conditions of a
Purchase Agreement with the Fund and the Investment Adviser, to purchase from
the Fund all of the shares of AMPS of each series offered hereby. The
Underwriter is committed to purchase all of such shares if any are purchased.
 
  The Underwriter has advised the Fund that it proposes initially to offer the
shares of AMPS to the public at the public offering price set forth on the
cover page of this Prospectus, and to certain dealers at such price less a
concession not in excess of $    per share. The Underwriter may allow, and
such dealers may reallow, a discount not in excess of $    per share to other
dealers. After the initial public offering, the public offering price,
concession and discount may be changed. The sales load of $    per share is
equal to  % of the initial public offering price. Investors must pay for any
AMPS purchased in the initial public offering on or before October   , 1998.
 
                                      64
<PAGE>
 
  The Underwriter has agreed to pay the Fund an amount to cover expenses
incurred in connection with the issuance and sale of the AMPS offered hereby
(estimated to be $       ) and other expenses.
 
  The Underwriter will act in Auctions as a Broker-Dealer as set forth under
"Description of AMPS--The Auction--General--Broker-Dealer Agreements" and will
be entitled to fees for services as a Broker-Dealer as set forth under
"Description of AMPS--Broker-Dealers." The Underwriter also may provide
information to be used in ascertaining the Reference Rate.
 
  The Fund anticipates that the Underwriter from time to time may act as a
broker in connection with the execution of the Fund's portfolio transactions.
The Fund has obtained an exemptive order permitting it to engage in certain
principal transactions with the Underwriter involving high quality, short-
term, tax-exempt securities, subject to certain conditions. See "Investment
Restrictions" and "Portfolio Transactions."
 
  The Underwriter is an affiliate of the Investment Adviser.
 
  The Fund and the Investment Adviser have agreed to indemnify the Underwriter
against certain liabilities including liabilities under the Securities Act of
1933, as amended.
 
            TRANSFER AGENT, DIVIDEND DISBURSING AGENT AND REGISTRAR
 
  The transfer agent, dividend disbursing agent and registrar for the shares
of AMPS will be IBJ Schroder Bank & Trust Company, One State Street, New York,
New York 10004. The transfer agent, dividend disbursing agent and shareholder
servicing agent for the shares of Common Stock is State Street Bank and Trust
Company, 225 Franklin Street, Boston, Massachusetts 02110.
 
                                LEGAL OPINIONS
 
  Certain legal matters in connection with the AMPS offered hereby will be
passed upon for the Fund and the Underwriter by Brown & Wood LLP, One World
Trade Center, New York, New York 10048-0557.
 
                                    EXPERTS
 
  The statement of assets, liabilities and capital of the Fund included in
this Prospectus has been so included in reliance on the report of        LLP,
independent auditors, and on their authority as experts in auditing and
accounting. The selection of independent auditors is subject to ratification
by shareholders of the Fund.
 
                            ADDITIONAL INFORMATION
 
  The Fund is subject to the informational requirements of the Securities
Exchange Act of 1934 and the 1940 Act and in accordance therewith is required
to file reports, proxy statements and other information with the Commission.
Any such reports, proxy statements and other information can be inspected and
copied at the public reference facilities of the Commission at Room 1024,
Judiciary Plaza, 450 Fifth Street, N.W., Washington, D.C. 20549, and at the
following regional offices of the Commission: Regional Office, at Seven World
Trade Center, Suite 1300, New York, New York 10048; Pacific Regional Office,
at 5670 Wilshire Boulevard, 11th Floor, Los Angeles, California 90036; and
Midwest Regional Office, at Northwestern Atrium Center, 500 West Madison
Street, Suite 1400, Chicago, Illinois 60661-2511. Copies of such materials can
be obtained from the public reference section of the Commission at 450 Fifth
Street, N.W., Washington, D.C. 20549, at prescribed rates. The Commission
maintains a Web site at http://www.sec.gov containing reports, proxy and
information statements and other information regarding registrants, including
the Fund, that file electronically with the Commission. Reports, proxy
statements and other information concerning the Fund can also be inspected at
the offices of the New York Stock Exchange, 20 Broad Street, New York, New
York 10005.
 
                                      65
<PAGE>
 
  Additional information regarding the Fund and the shares of AMPS is
contained in the Registration Statement on Form N-2, including amendments,
exhibits and schedules thereto, relating to such shares filed by the Fund with
the Commission in Washington, D.C. This Prospectus does not contain all of the
information set forth in the Registration Statement, including any amendments,
exhibits and schedules thereto. For further information with respect to the
Fund and the shares offered hereby, reference is made to the Registration
Statement. Statements contained in this Prospectus as to the contents of any
contract or other document referred to are not necessarily complete and in
each instance reference is made to the copy of such contract or other document
filed as an exhibit to the Registration Statement, each such statement being
qualified in all respects by such reference. A copy of the Registration
Statement may be inspected without charge at the Commission's principal office
in Washington, D.C., and copies of all or any part thereof may be obtained
from the Commission upon the payment of certain fees prescribed by the
Commission.
 
YEAR 2000 ISSUES
 
  Many computer systems were designed using only two digits to designate
years. These systems may not be able to distinguish the Year 2000 from the
Year 1900 (commonly known as the "Year 2000 Problem"). Like other investment
companies and financial and business organizations, the Fund could be
adversely affected if the computer systems used by the Investment Adviser or
other Fund service providers do not properly address this problem prior to
January 1, 2000. The Investment Adviser has established a dedicated group to
analyze these issues and to implement any systems modifications necessary to
prepare for the Year 2000. Currently, the Investment Adviser does not
anticipate that the transition to the Year 2000 will have any material impact
on its ability to continue to service the Fund at current levels. In addition,
the Investment Adviser has sought assurances from the Fund's other service
providers that they are taking all necessary steps to ensure that their
computer systems will accurately reflect the Year 2000, and the Investment
Adviser will continue to monitor the situation. At this time, however, no
assurance can be given that the Fund's other service providers have
anticipated every step necessary to avoid any adverse effect on the Fund
attributable to the Year 2000 Problem.
 
                                      66
<PAGE>
 
INDEPENDENT AUDITORS' REPORT
 
The Board of Directors and Shareholder,
MuniHoldings California Insured Fund III, Inc.:
 
We have audited the accompanying statement of assets, liabilities and capital
of MuniHoldings California Insured Fund III, Inc. as of        , 1998. This
statement of assets, liabilities and capital is the responsibility of the
Fund's management. Our responsibility is to express an opinion on this
statement of assets, liabilities and capital based on our audit.
 
We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the statement of assets, liabilities
and capital is free of material misstatement. An audit includes examining, on
a test basis, evidence supporting the amounts and disclosures in the statement
of assets, liabilities and capital. An audit also includes assessing the
accounting principles used and significant estimates made by management, as
well as evaluating the overall statement of assets, liabilities and capital
presentation. We believe that our audit provides a reasonable basis for our
opinion.
 
In our opinion, such statement of assets, liabilities and capital presents
fairly, in all material respects, the financial position of MuniHoldings
California Insured Fund III, Inc. as of        , 1998 in conformity with
generally accepted accounting principles.
 
Princeton, New Jersey
         , 1998
 
                                      67
<PAGE>
 
                MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.
 
                 STATEMENT OF ASSETS, LIABILITIES AND CAPITAL
 
                                        , 1998
 
<TABLE>
   <S>                                                                 <C>
   ASSETS
     Cash............................................................. $100,005
     Deferred organization expenses (Note 1)..........................  355,000
                                                                       --------
       Total assets...................................................  455,005
                                                                       --------
   LIABILITIES
     Accrued expenses (Note 1)........................................  355,000
                                                                       --------
   NET ASSETS......................................................... $100,005
                                                                       ========
   CAPITAL
     Common Stock, par value $.10 per share; 200,000,000 shares
      authorized; 6,667 shares issued and outstanding (Note 1)........ $    667
     Paid-in Capital in excess of par.................................   99,338
                                                                       --------
       Total Capital--Equivalent to $15.00 net asset value
        per share of common stock (Note 1)............................ $100,005
                                                                       ========
</TABLE>
 
             NOTES TO STATEMENT OF ASSETS, LIABILITIES AND CAPITAL
 
NOTE 1. ORGANIZATION
 
  The Fund was incorporated under the laws of the State of Maryland on August
17, 1997 as a closed-end, non-diversified management investment company and
has had no operations other than the sale to Fund Asset Management, L.P. (the
"Investment Adviser") of an aggregate of 6,667 shares of Common Stock for
$100,005 on        , 1998. The General Partner of the Investment Adviser is an
indirect, wholly-owned subsidiary of Merrill Lynch & Co., Inc.
 
  Deferred organization costs will be amortized on a straight-line basis over
a five-year period beginning with the commencement of operations of the Fund.
Direct costs relating to the public offering of the Fund's shares will be
charged to capital at the time of issuance of shares. In accordance with
Statement of Position 98-5, unamortized organization costs existing at June 1,
1999 (start of the Fund's new fiscal year) will be charged to expense at that
date. At the present time, management believes this change will not have any
material impact to the operations of the Fund.
 
NOTE 2. MANAGEMENT ARRANGEMENTS
 
  The Fund has engaged the Investment Adviser to provide investment advisory
and management services to the Fund. The Investment Adviser will receive a
monthly fee for advisory services, at an annual rate equal to 0.55 of 1% of
the average weekly net assets of the Fund, including proceeds from the sale of
preferred stock. The Investment Adviser or an affiliate will pay Merrill
Lynch, Pierce, Fenner & Smith Incorporated a commission in the amount of     %
of the price to the public per share in connection with the initial public
offering of the Fund's common stock.
 
NOTE 3. FEDERAL INCOME TAXES
 
  The Fund intends to qualify as a "regulated investment company" and as such
(and by complying with the applicable provisions of the Internal Revenue Code
of 1986, as amended) will not be subject to Federal income tax on taxable
income (including realized capital gains) that is distributed to shareholders.
 
                                      68
<PAGE>
 
                                   GLOSSARY
 
  " "AA' (AA) Composite Commercial Paper Rate," on any Valuation Date, means
(i) the Interest Equivalent of the rate on commercial paper placed on behalf
of issuers whose corporate bonds are rated "AA" by S&P or "Aa" by Moody's or
the equivalent of such rating by another nationally recognized statistical
rating organization, as such rate is made available on a discount basis or
otherwise by the Federal Reserve Bank of New York for the Business Day
immediately preceding such date, or (ii) in the event that the Federal Reserve
Bank of New York does not make available such a rate, then the arithmetic
average of the Interest Equivalent of the rate on commercial paper placed on
behalf of such issuers, as quoted on a discount basis or otherwise by Merrill
Lynch, Pierce, Fenner & Smith Incorporated or its successors that are
Commercial Paper Dealers, to the Auction Agent for the close of business on
the Business Day immediately preceding such date. If one of the Commercial
Paper Dealers does not quote a rate required to determine the "AA" Composite
Commercial Paper Rate, the "AA" Composite Commercial Paper Rate will be
determined on the basis of the quotation or quotations furnished by any
Substitute Commercial Paper Dealer or Substitute Commercial Paper Dealers
selected by the Fund to provide such rate or rates not being supplied by the
Commercial Paper Dealer. If the number of Dividend Period days shall be (i) 7
or more but fewer than 49 days, such rate shall be the Interest Equivalent of
the 30-day rate on such commercial paper; (ii) 49 or more but fewer than 70
days, such rate shall be the Interest Equivalent of the 60-day rate on such
commercial paper; (iii) 70 or more days but fewer than 85 days, such rate
shall be the arithmetic average of the Interest Equivalent of the 60-day and
90-day rates on such commercial paper; (iv) 85 or more days but fewer than 99
days, such rate shall be the Interest Equivalent of the 90-day rate on such
commercial paper; (v) 99 or more days but fewer than 120 days, such rate shall
be the arithmetic average of the Interest Equivalent of the 90-day and 120-day
rates on such commercial paper; (vi) 120 or more days but fewer than 141 days,
such rate shall be the Interest Equivalent of the 120-day rate on such
commercial paper; (vii) 141 or more days but fewer than 162 days, such rate
shall be the arithmetic average of the Interest Equivalent of the 120-day and
180-day rates on such commercial paper; and (viii) 162 or more days but fewer
than 183 days, such rate shall be the Interest Equivalent of the 180-day rate
on such commercial paper.
 
  "Additional Dividend" has the meaning set forth on page    of this
Prospectus.
 
  "Agent Member" means the member of the Securities Depository that will act
on behalf of a Beneficial Owner of one or more shares of AMPS or on behalf of
a Potential Beneficial Owner.
 
  "AMPS" means the Auction Market Preferred Stock, Series A and the Auction
Market Preferred Stock, Series B, each with a par value of $.10 per share and
a liquidation preference of $25,000 per share plus an amount equal to
accumulated but unpaid dividends thereon (whether or not earned or declared),
of the Fund.
 
  "AMPS Basic Maintenance Amount" has the meaning set forth on page    of this
Prospectus.
 
  "AMPS Basic Maintenance Cure Date" has the meaning set forth on page    of
this Prospectus.
 
  "AMPS Basic Maintenance Report" has the meaning set forth on page    of this
Prospectus.
 
  "Anticipation Notes" means the following California Municipal Bonds: revenue
anticipation notes, tax anticipation notes, tax and revenue anticipation
notes, grant anticipation notes and bond anticipation notes.
 
  "Applicable Percentage" has the meaning set forth on page    of this
Prospectus.
 
  "Applicable Rate" means the rate per annum at which cash dividends are
payable on shares of AMPS for any Dividend Period.
 
  "Articles Supplementary" means the Articles Supplementary of the Fund
specifying the powers, preferences and rights of the shares of AMPS.
 
  "Auction" means a periodic operation of the Auction Procedures.
 
                                      69
<PAGE>
 
  "Auction Agent" means IBJ Schroder Bank & Trust Company unless and until
another commercial bank, trust company or other financial institution
appointed by a resolution of the Board of Directors of the Fund or a duly
authorized committee thereof enters into an agreement with the Fund to follow
the Auction Procedures for the purpose of determining the Applicable Rate and
to act as transfer agent, registrar, dividend disbursing agent and redemption
agent for the AMPS.
 
  "Auction Agent Agreement" means the agreement entered into between the Fund
and the Auction Agent which provides, among other things, that the Auction
Agent will follow the Auction Procedures for the purpose of determining the
Applicable Rate.
 
  "Auction Date" has the meaning set forth on page    of this Prospectus.
 
  "Auction Procedures" means the procedures for conducting Auctions set forth
in Appendix D to this Prospectus.
 
  "Available AMPS" has the meaning specified in Paragraph 10(d)(i) of the
Auction Procedures.
 
  "Beneficial Owner" means a customer of a Broker-Dealer who is listed on the
records of that Broker-Dealer (or if applicable, the Auction Agent) as a
holder of shares of AMPS or a Broker-Dealer that holds AMPS for its own
account.
 
  "Bid" has the meaning specified in Subsection 10(b)(i) of the Auction
Procedures.
 
  "Bidder" has the meaning specified in Subsection 10(b)(i) of the Auction
Procedures.
 
  "Board of Directors" or "Board" means the Board of Directors of the Fund.
 
  "Broker-Dealer" means any broker-dealer, or other entity permitted by law to
perform the functions required of a Broker-Dealer in the Auction Procedures,
that has been selected by the Fund and has entered into a Broker-Dealer
Agreement with the Auction Agent that remains effective.
 
  "Broker-Dealer Agreement" means an agreement entered into between the
Auction Agent and a Broker-Dealer, including Merrill Lynch, Pierce, Fenner &
Smith Incorporated, pursuant to which such Broker-Dealer agrees to follow the
Auction Procedures.
 
  "Business Day" means a day on which the New York Stock Exchange is open for
trading and which is not a Saturday, Sunday or other day on which banks in The
City of New York are authorized or obligated by law to close.
 
  "California Municipal Bonds" has the meaning set forth on page   of this
Prospectus.
 
  "Cede" means Cede & Co., the nominee of DTC, and in whose name the shares of
AMPS initially will be registered.
 
  "Charter" means the Articles of Incorporation, as amended and supplemented
(including the Articles Supplementary), of the Fund.
 
  "Code" means the Internal Revenue Code of 1986, as amended.
 
  "Commercial Paper Dealers" means Merrill Lynch, Pierce, Fenner & Smith
Incorporated and such other commercial paper dealer or dealers as the Fund
from time to time may appoint or, in lieu thereof, their respective affiliates
and successors.
 
  "Common Stock" means the Common Stock, par value $.10 per share, of the
Fund.
 
 
                                      70
<PAGE>
 
  "Date of Original Issue" means, with respect to each share of AMPS, the date
on which such share first is issued by the Fund.
 
  "Deposit Securities" means cash and California Municipal Bonds and Municipal
Bonds rated at least A2 (having a remaining maturity of 12 months or less), P-
1, VMIG-1 or MIG-1 by Moody's or A (having a remaining maturity of 12 months
or less), A-1+ or SP-1+ by S&P.
 
  "Discount Factor" means a Moody's Discount Factor or an S&P Discount Factor,
as the case may be.
 
  "Discounted Value" of any asset of the Fund means (i) with respect to an S&P
Eligible Asset, the quotient of the market value thereof divided by the
applicable S&P Discount Factor and (ii) with respect to a Moody's Eligible
Asset, the lower of par and the quotient of the market value thereof divided
by the applicable Moody's Discount Factor.
 
  "Dividend Payment Date" has the meaning set forth on page    of this
Prospectus.
 
  "Dividend Period" has the meaning set forth on page    of this Prospectus.
 
  "DTC" means The Depository Trust Company.
 
  "Eligible Assets" means Moody's Eligible Assets or S&P Eligible Assets, as
the case may be.
 
  "Existing Holder" means a Broker-Dealer or any such other person as may be
permitted by the Fund that is listed as the holder of record of shares of AMPS
in the records of the Auction Agent.
 
  "Fitch" means Fitch IBCA, Inc. or its successors.
 
  "Forward Commitment" has the meaning set forth on page    of this
Prospectus.
 
  "Fund" means MuniHoldings California Insured Fund III, Inc., a Maryland
corporation that is the issuer of the AMPS.
 
  "Hold Order" has the meaning specified in Subsection 10(b)(i) of the Auction
Procedures.
 
  "Initial Dividend Payment Date" has the meaning, with respect to each series
of AMPS, set forth on page   of this Prospectus.
 
  "Initial Dividend Period" means, with respect to the AMPS, the period from
and including the Date of Original Issue to but excluding the Initial Dividend
Payment Date for each series of AMPS.
 
  "Initial Margin" means the amount of cash or securities deposited with a
broker as a margin payment at the time of purchase or sale of a financial
futures contract.
 
  "Interest Equivalent" means a yield on a 360-day basis of a discount basis
security which is equal to the yield on an equivalent interest-bearing
security.
 
  "Investment Adviser" means Fund Asset Management, L.P.
 
  "IRS" means the United States Internal Revenue Service.
 
  "Long Term Dividend Period" has the meaning set forth on page   of this
Prospectus.
 
  "Mandatory Redemption Price" has the meaning set forth on page   of this
Prospectus.
 
  "Marginal Tax Rate" means the maximum marginal regular Federal individual
income tax rate applicable to ordinary income or the maximum marginal regular
Federal corporate income tax rate, whichever is greater.
 
 
                                      71
<PAGE>
 
  "Maximum Applicable Rate" has the meaning specified under "Description of
AMPS--The Auction--Orders by Beneficial Owners, Potential Beneficial Owners,
Existing Holders and Potential Holders" in the Prospectus.
 
  "Maximum Potential Additional Dividend Liability" has the meaning set forth
on page    of this Prospectus.
 
  "Moody's" means Moody's Investors Service, Inc. or its successors.
 
  "Moody's Discount Factor" has the meaning set forth on page    of this
Prospectus.
 
  "Moody's Eligible Assets" has the meaning set forth on page    of this
Prospectus.
 
  "Moody's Exposure Period" means a period that is the same length or longer
than the number of days used in calculating the cash dividend component of the
AMPS Basic Maintenance Amount and initially shall be the period commencing on
and including a given Valuation Date and ending 48 days thereafter.
 
  "Moody's Hedging Transactions" has the meaning set forth on page    of this
Prospectus.
 
  "Moody's Volatility Factor" means 272% as long as there has been no increase
enacted to the Marginal Tax Rate. If such an increase is enacted but not yet
implemented, the Moody's Volatility Factor shall be as follows:
 
<TABLE>
<CAPTION>
                    % CHANGE IN                              MOODY'S
                 MARGINAL TAX RATE                      VOLATILITY FACTOR
                 -----------------                      -----------------
<S>                                                             <C>
                     less than or equal to  5%..............    292%
greater than  5% but less than or equal to 10%..............    313%
Greater than 10% but less than or equal to 15%..............    338%
greater than 15% but less than or equal to 20%..............    364%
greater than 20% but less than or equal to 25%..............    396%
greater than 25% but less than or equal to 30%..............    432%
greater than 30% but less than or equal to 35%..............    472%
greater than 35% but less than or equal to 40%..............    520%
</TABLE>
 
Notwithstanding the foregoing, the Moody's Volatility Factor may mean such
other potential dividend rate increase factor as Moody's advises the Fund in
writing is applicable.
 
  "Municipal Bonds" has the meaning set forth on page    of this Prospectus.
 
  "Municipal Index" has the meaning set forth on page    of this Prospectus.
 
  "1940 Act" means the Investment Company Act of 1940, as amended from time to
time.
 
  "1940 Act AMPS Asset Coverage" has the meaning set forth on page    of this
Prospectus.
 
  "1940 Act Cure Date" has the meaning set forth on page    of this
Prospectus.
 
  "Non-Call Period" has the meaning set forth under "Specific Redemption
Provisions" below.
 
  "Non-Payment Period" has the meaning set forth on page    of this
Prospectus.
 
  "Non-Payment Period Rate" has the meaning set forth on page    of this
Prospectus.
 
  "Notice of Revocation" has the meaning set forth on page    of this
Prospectus.
 
  "Notice of Special Dividend Period" has the meaning set forth on page    of
this Prospectus.
 
                                      72
                                                                
<PAGE>
 
  "Optional Redemption Price" has the meaning set forth on page    of this
Prospectus.
 
  "Order" has the meaning specified in Subsection 10(b)(i) of the Auction
Procedures.
 
  "Policy" means an insurance policy purchased by the Fund which guarantees
the payment of principal and interest on specified California Municipal Bonds
or Municipal Bonds during the period in which such California Municipal Bonds
or Municipal Bonds are owned by the Fund; provided, however, that, as long as
the AMPS are rated by Moody's and S&P, the Fund will not obtain any Policy
unless Moody's and S&P advise the Fund in writing that the purchase of such
Policy will not adversely affect their then-current rating on the AMPS.
 
  "Potential Beneficial Owner" means a customer of a Broker-Dealer or a
Broker-Dealer that is not a Beneficial Owner of shares of AMPS but that wishes
to purchase such shares, or that is a Beneficial Owner that wishes to purchase
additional shares of AMPS.
 
  "Potential Holder" means any Broker-Dealer or any such other person as may
be permitted by the Fund, including any Existing Holder, who may be interested
in acquiring shares of AMPS (or, in the case of an Existing Holder, additional
shares of AMPS).
 
  "Preferred Stock" means Preferred Stock, par value $.10 per share, of the
Fund.
 
  "Premium Call Period" has the meaning set forth under "Specific Redemption
Provisions" below.
 
  "Receivables for California Municipal Bonds Sold." for purposes of
determining S&P Eligible Assets, has the meaning set forth on page    of this
Prospectus.
 
  "Receivables for California Municipal Bonds or Municipal Bonds Sold," for
purposes of determining Moody's Eligible Assets, has the meaning set forth on
page    of this Prospectus.
 
  "Reference Rate" means: (i) with respect to a Dividend Period or a Short
Term Dividend Period having 28 or fewer days, the higher of the applicable
"AA" Composite Commercial Paper Rate and the Taxable Equivalent of the Short
Term Municipal Bond Rate, (ii) with respect to any Short Term Dividend Period,
having more than 28 but fewer than 183 days, the applicable "AA" Composite
Commercial Paper Rate, (iii) with respect to any Short Term Dividend Period
having 183 or more but fewer than 364 days, the applicable U.S. Treasury Bill
Rate and (iv) with respect to any Long Term Dividend Period, the applicable
U.S. Treasury Note Rate.
 
  "Request for Special Dividend Period" has the meaning set forth on page
of this Prospectus.
 
  "Response" has the meaning set forth on page    of this Prospectus.
 
  "Retroactive Taxable Allocation" has the meaning set forth on page    of
this Prospectus.
 
  "S&P" means Standard & Poor's, a division of The McGraw-Hill Companies,
Inc., or its successors.
 
  "S&P Discount Factor" has the meaning set forth on page    of this
Prospectus.
 
  "S&P Eligible Assets" has the meaning set forth on page    of this
Prospectus.
 
  "S&P Exposure Period" means the maximum period of time following a Valuation
Date, including the Valuation Date and the AMPS Basic Maintenance Cure Date,
that the Fund has under the Articles Supplementary to cure any failure to
maintain, as of such Valuation Date, a Discounted Value for its portfolio at
least equal to the AMPS Basic Maintenance Amount.
 
  "S&P Hedging Transactions" has the meaning set forth on page    of this
Prospectus.
 
  "S&P Volatility Factor" means 277% or such other potential dividend rate
increase factor as S&P advises the Fund in writing is applicable.
 
                                      73
<PAGE>
 
  "Securities Depository" means The Depository Trust Company and its
successors and assigns or any successor securities depository selected by the
Fund that agrees to follow the procedures required to be followed by such
securities depository in connection with shares of AMPS.
 
  "Sell Order" has the meaning specified in Subsection 10(b)(i) of the Auction
Procedures.
 
  "7-Day Dividend Period" means a Dividend Period consisting of seven days.
 
  "Short Term Dividend Period" has the meaning set forth on page   of this
Prospectus.
 
  "Special Dividend Period" has the meaning set forth on page   of this
Prospectus.
 
  "Specific Redemption Provisions" means, with respect to a Special Dividend
Period, either, or any combination of, (i) a period (a "Non-Call Period")
determined by the Board of Directors of the Fund, after consultation with the
Auction Agent and the Broker-Dealers, during which the shares of AMPS subject
to such Dividend Period shall not be subject to redemption at the option of
the Fund and (ii) a period (a "Premium Call Period"), consisting of a number
of whole years and determined by the Board of Directors of the Fund, after
consultation with the Auction Agent and the Broker-Dealers, during each year
of which the shares of AMPS subject to such Dividend Period shall be
redeemable at the Fund's option at a price per share equal to $25,000 plus
accumulated but unpaid dividends plus a premium expressed as a percentage of
$25,000, as determined by the Board of Directors of the Fund after
consultation with the Auction Agent and the Broker-Dealers.
 
  "Submission Deadline" has the meaning specified in Subsection 10(a)(x) of
the Auction Procedures.
 
  "Submitted Bid" has the meaning specified in Subsection 10(d)(i) of the
Auction Procedures.
 
  "Submitted Hold Order" has the meaning specified in Subsection 10(d)(i) of
the Auction Procedures.
 
  "Submitted Order" has the meaning specified in Subsection 10(d)(i) of the
Auction Procedures.
 
  "Submitted Sell Order" has the meaning specified in Subsection 10(d)(i) of
the Auction Procedures.
 
  "Subsequent Dividend Period" means each Dividend Period after the Initial
Dividend Period.
 
  "Substitute Rating Agency" and "Substitute Rating Agencies" shall mean a
nationally recognized statistical rating organization or two nationally
recognized statistical rating organizations, respectively, selected by Merrill
Lynch, Pierce, Fenner & Smith Incorporated, or its respective affiliates and
successors, after consultation with the Fund, to act as a substitute rating
agency or substitute rating agencies, as the case may be, to determine the
credit ratings of the AMPS.
 
  "Sufficient Clearing Bids" has the meaning specified in Subsection 10(d)(i)
of the Auction Procedures.
 
  "Taxable Equivalent of the Short-Term Municipal Bond Rate" on any date means
90% of the quotient of (A) the per annum rate expressed on an interest
equivalent basis equal to the Kenny S&P 30 day High Grade Index (the "Kenny
Index"), or any successor index made available for the Business Day
immediately preceding such date but in any event not later than 8:30 A.M., New
York City time, on such date by Kenny Information Systems Inc. or any
successor thereto, based upon 30-day yield evaluations at par of bonds the
interest on which is excludable for regular Federal income tax purposes under
the Code of "high grade" component issuers selected by Kenny Information
Systems Inc. or any such successor from time to time in its discretion, which
component issuers shall include, without limitation, issuers of general
obligation bonds but shall exclude any bonds the interest on which constitutes
an item of tax preference under Section 57(a) (5) of the Code, or successor
provisions, for purposes of the "alternative minimum tax," divided by (B) 1.00
minus the Marginal Tax Rate (expressed as a decimal); provided, however, that
if the Kenny Index is not made so available by 8:30 A.M., New York City time,
on such date by Kenny Information Systems Inc. or any successor, the Taxable
 
                                      74
<PAGE>
 
Equivalent of the Short-Term Municipal Bond Rate shall mean the quotient of
(A) the per annum rate expressed on an interest equivalent basis equal to the
most recent Kenny Index so made available for any preceding Business Day,
divided by (B) 1.00 minus the Marginal Tax Rate (expressed as a decimal). The
Fund may not utilize a successor index to the Kenny Index unless Moody's and
S&P provide the Fund with written confirmation that the use of such successor
index will not adversely affect the then-current respective Moody's and S&P
ratings of the AMPS.
 
  "Treasury Bonds" has the meaning set forth on page    of this Prospectus.
 
  "U.S. Treasury Bill Rate" on any date means (i) the Interest Equivalent of
the rate on the actively traded Treasury Bill with a maturity most nearly
comparable to the length of the related Dividend Period, as such rate is made
available on a discount basis or otherwise by the Federal Reserve Bank of New
York in its Composite 3:30 P.M. Quotations for U.S. Government Securities
report for such Business Day, or (ii) if such yield as so calculated is not
available, the Alternate Treasury Bill Rate on such date. "Alternate Treasury
Bill Rate" on any date means the Interest Equivalent of the yield as
calculated by reference to the arithmetic average of the bid price quotations
of the actively traded Treasury Bill with a maturity most nearly comparable to
the length of the related Dividend Period, as determined by bid price
quotations as of any time on the Business Day immediately preceding such date,
obtained from at least three recognized primary U.S. Government securities
dealers selected by the Auction Agent.
 
  "U.S. Treasury Note Rate" on any date means (i) the yield as calculated by
reference to the bid price quotation of the actively traded, current coupon
Treasury Note with a maturity most nearly comparable to the length of the
related Dividend Period, as such bid price quotation is published on the
Business Day immediately preceding such date by the Federal Reserve Bank of
New York in its Composite 3:30 P.M. Quotations for U.S. Government Securities
report for such Business Day, or (ii) if such yield as so calculated is not
available, the Alternate Treasury Note Rate on such date. "Alternate Treasury
Note Rate" on any date means the yield as calculated by reference to the
arithmetic average of the bid price quotations of the actively traded, current
coupon Treasury Note with a maturity most nearly comparable to the length of
the related Dividend Period, as determined by the bid price quotations as of
any time on the Business Day immediately preceding such date, obtained from at
least three recognized primary U.S. Government securities dealers selected by
the Auction Agent.
 
  "Valuation Date" has the meaning set forth on page    of this Prospectus.
 
  "Variation Margin" means, in connection with an outstanding financial
futures contract owned or sold by the Fund, the amount of cash or securities
paid to or received from a broker (subsequent to the Initial Margin payment)
from time to time as the price of such financial futures contract fluctuates.
 
  "Winning Bid Rate" has the meaning specified in Subsection 10(d)(i) of the
Auction Procedures.
 
                                      75
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                                  APPENDIX I
 
                  ECONOMIC AND OTHER CONDITIONS IN CALIFORNIA
 
  THE FOLLOWING INFORMATION IS A BRIEF SUMMARY OF FACTORS AFFECTING THE
ECONOMY OF THE STATE OF CALIFORNIA AND DOES NOT PURPORT TO BE A COMPLETE
DESCRIPTION OF SUCH FACTORS. OTHER FACTORS WILL AFFECT ISSUERS. THE SUMMARY IS
BASED PRIMARILY UPON ONE OR MORE OF THE MOST RECENT PUBLICLY AVAILABLE
OFFERING STATEMENTS RELATING TO DEBT OFFERINGS OF CALIFORNIA ISSUERS, HOWEVER,
IT HAS NOT BEEN UPDATED NOR WILL IT BE UPDATED DURING THE YEAR. THE FUND HAS
NOT INDEPENDENTLY VERIFIED THE INFORMATION.
 
GENERAL ECONOMIC CONDITIONS
 
  The economy of the State of California (sometimes referred to herein as the
"State") is the largest among the 50 states and one of the largest in the
world. This diversified economy has major components in agriculture,
manufacturing, high technology, trade, entertainment, tourism, construction
and services.
 
  California's July 1, 1997 population of over 32.9 million represented over
12% of the total United States population. As of July 1, 1990, the population
of 29,944,000 represented an increase of over 6 million persons, or 26%,
during the decade of the 1980's.
 
  California's population is concentrated in metropolitan areas. As of the
April 1, 1990 census, 96% of the State's population resided in the 23
Metropolitan Statistical Areas in the State. As of July 1, 1997, the 5-county
Los Angeles area accounted for 49%, with 16.0 million residents. The 10-county
San Francisco Bay Area represented 21%, with a population of 6.9 million.
 
  From 1990-1993, the State suffered through a severe recession, the worst
since the 1930's, heavily influenced by large cutbacks in defense/aerospace
industries and military base closures and by a major drop in real estate
construction. California's economy has been recovering and growing steadily
since the start of 1994. The current economic expansion is marked by strong
growth in high technology manufacturing and services, including computer
software, electronic manufacturing and motion picture/television production;
growth is also strong in other business services, both nonresidential and
residential construction and local education. The Asian economic crisis is
expected to have dampening effects on the State's economy, as exports to the
region will be reduced further (declines had appeared already in 1997) and the
trade deficit will increase. However, some impacts of the Asian situation
could benefit California, as services will be needed to handle imports, and
lower interest rates should help the construction industry. Furthermore,
exports to other regions, such as Mexico and elsewhere in Latin America, have
grown rapidly, taking up some of the slack from Asia.
 
THE STATE
 
  Fiscal Years Prior to 1995-1996. The State's budget problems in the early
1990's were caused by a combination of external economic conditions and a
structural imbalance in that the largest general fund programs--K-14
education, health, welfare and corrections--were increasing faster than the
revenue base, driven by the State's rapid population growth. These pressures
are expected to continue as population trends maintain strong demand for
health and welfare services, as the school age population continues to grow,
and as the State's corrections program responds to a "Three Strikes" law
enacted in 1994, which requires mandatory life prison terms for certain third-
time felony offenders. In addition, the State's health and welfare programs
are in a transition period as a result of recent federal and state welfare
reform initiatives.
 
  As a result of these factors and others, and especially because a severe
recession between 1990-1994 reduced revenues and increased expenditures for
social welfare programs, from the late 1980's until 1992-93, the State had a
period of budget imbalance. During this period, expenditures exceeded revenues
in four out of six years, and the State accumulated and sustained a budget
deficit in its budget reserve, the Special Fund for Economic Uncertainties
("SFEU") approaching $2.8 billion at its peak at June 30, 1993. Starting in
the 1990-91 Fiscal Year and for each fiscal year thereafter, each budget
required multibillion dollar actions to bring projected
 
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revenues and expenditures into balance. The State Legislature and Governor
agreed on the following principal steps to produce Budget Acts in the years
1991-92 to 1994-95, although not all these actions were taken in each year.
 
  1. significant cuts in health and welfare program expenditures;
 
  2. transfers of program responsibilities and funding from the State to
     local governments (referred to as "realignment"), coupled with some
     reduction in mandates on local government;
 
  3. transfer of about $3.6 billion in local property tax revenues from
     cities, counties, redevelopment agencies and some other districts to
     local school districts, thereby reducing State funding for schools under
     Proposition 98 (discussed below);
 
  4. reduction in growth of support for higher education programs, coupled
     with increases in student fees, through the 1994-95 Fiscal Year;
 
  5. maintenance of the minimum Proposition 98 funding guarantee for K-14
     schools, and the disbursement of additional funds to keep a constant
     level of about $4,200 per K-12 pupils through the 1993-94 Fiscal Year;
 
  6. revenue increases (particularly in the 1991-92 Fiscal Year budget), most
     of which were for a short duration;
 
  7. increased reliance on aid from the federal government to offset the
     costs of incarcerating, educating and providing health and welfare
     services to illegal immigrants, although during this time frame, most of
     the additional aid requested by the Administration was not received; and
 
  8.  various one-time adjustments and accounting changes.
 
  Despite these budget actions, as noted, the effects of the recession led to
large, unanticipated deficits in the budget reserve, the SFEU, as compared to
projected positive balances. By the 1993-94 Fiscal Year, the accumulated
deficit was so large that it was impractical to budget to retire it in one
year, so a two-year program was implemented, using the issuance of revenue
anticipation warrants to carry a portion of the deficit over the end of the
fiscal year. When the economy failed to recover sufficiently in 1993-94, a
second two-year plan was implemented in 1994-95, again using cross-fiscal year
revenue anticipation warrants to partly finance the deficit into the 1995-96
fiscal year.
 
  Another consequence of the accumulated budget deficits, together with other
factors such as disbursement of funds to local school districts "borrowed"
from future fiscal years and hence not shown in the annual budget, was to
significantly reduce the State's cash resources available to pay its ongoing
obligations. When the Legislature and the Governor failed to adopt a budget
for the 1992-93 Fiscal Year by July 1, 1992, which would have allowed the
State to carry out its normal annual cash flow borrowing to replenish its cash
reserves, the State Controller issued registered warrants to pay a variety of
obligations representing prior years' or continuing appropriations, and
mandates from court order. Available funds were used to make constitutionally-
mandated payments, such as debt service on bonds and warrants. Between July 1
and September 4, 1992, when the budget was adopted, the State Controller
issued a total of approximately $3.8 billion of registered warrants.
 
  For several years during the recession, the State was forced to rely
increasingly on external debt markets to meet its cash needs, as a succession
of notes and revenue anticipation warrants were issued in the period from June
1992 to July 1994, often needed to pay previously maturing notes or warrants.
These borrowings were used also in part to spread out the repayment of the
accumulated budget deficit over the end of a fiscal year, as noted earlier.
The last and largest of these borrowings was $4.0 billion of revenue
anticipation warrants which were issued in July, 1994 and matured on April 25,
1996.
 
  1995-96 Fiscal Year. The 1995-96 Budget Act was signed by the Governor on
August 3, 1995, 34 days after the start of the fiscal year. The Budget Act
projected general fund revenues and transfers of $44.1 billion, a 3.5%
increase from the prior year. Expenditures were budgeted at $43.4 billion, a
4% increase. The Budget Act
 
                                      A-2
<PAGE>
 
also projected Special Fund revenues of $12.7 billion and appropriated Special
Fund expenditures of $13.0 billion.
 
  Final data for the 1995-96 Fiscal Year showed revenues and transfers of
$46.1 billion, some $2 billion over the original fiscal year estimate, which
was attributed to the strong economic recovery. Expenditures also increased,
to an estimated $45.4 billion, as a result of the requirement to expend
revenues for schools under Proposition 98, and among other things, failure of
the federal government to enact welfare reform during the fiscal year and to
budget new aid for illegal immigrant costs, both of which had been counted on
to allow reductions in State costs. SFEU had a small negative balance of about
$87 million at June 30, 1996, all but eliminating the accumulated budget
deficit from the early 1990's. Available internal borrowable resources
(available cash, after payment of all obligations due) on June 30, 1996 was
about $3.8 billion, representing a significant improvement in the State's cash
position, and ending the need for deficit borrowing over the end of the fiscal
year. The State's improved cash position allowed it to repay the $4.0 billion
Revenue Anticipation Warrant issue on April 25, 1996, and to issue only $2.0
billion of revenue anticipation notes during the fiscal year, which matured on
June 28, 1996.
 
  The 1995-96 Budget Act included substantial additional funding under
Proposition 98 for schools and community colleges (about $1.0 billion general
fund and $1.2 billion total above 1994-95 levels). Because of higher than
projected revenues in 1994-95, an additional $561 million ($92 per K-12 ADA)
was appropriated to the 1994-95 Proposition 98 entitlement. A large part of
this was a block grant of about $50 per pupil for any one-time purpose. For
the first time in several years, a full 2.7 percent cost of living allowance
was funded. The budget was based on the settlement of the CTA v. Gould
litigation. Cuts in health and welfare costs totaled about $220 million,
almost $700 million less than had been anticipated, because of the failure by
the federal government to approve certain of these actions in a timely manner.
The federal government also failed to appropriate all but $31 million of an
anticipated $500 million in new federal aid for incarceration and health care
costs of illegal immigrants. Funding from the general fund for the University
of California was increased by $106 million and for the California State
University system by $97 million, with no increases in student fees.
 
  1996-97 Fiscal Year. The 1996-97 Budget Act was signed by the Governor on
July 15, 1996, along with various implementing bills. The Governor vetoed
about $82 million of appropriations (both general fund and Special Fund). With
the signing of the Budget Act, the State implemented its regular cash flow
borrowing program with the issuance of $3.0 billion of Revenue Anticipation
Notes to mature on June 30, 1997. The Budget Act appropriated a modest budget
reserve in the SFEU of $305 million, as of June 30, 1997. The Department of
Finance projected that, on June 30, 1997, the State's available internal
borrowing (cash) resources would be $2.9 billion, after payment of all
obligations due by that date, so that no cross-fiscal year borrowing will be
needed.
 
  Revenues. The Legislature rejected the Governor's proposed 15% cut in
personal income taxes (to be phased in over three years), but did approve a 5%
cut in bank and corporation taxes, to be effective for income years starting
in January 1, 1997. As a result, revenues for the Fiscal Year were estimated
to total $47.643 billion, a 3.3% increase over the final estimated 1995-96
revenues. Special Fund revenues were estimated to be $13.3 billion.
 
  Expenditures. The Budget Act contained general fund appropriations totaling
$47.251 billion, a 4.0% increase over the final estimated 1995-96
expenditures. Special Fund expenditures were budgeted at $12.6 billion.
 
  The following are principal features of the 1996-97 Budget Act:
 
    1. Proposition 98 funding for schools and community college districts
  increased by almost $1.6 billion (general fund) and $1.65 billion total
  above revised 1995-96 levels. Almost half of this money was budgeted to
  fund class-size reductions in kindergarten and grades 1-3. Also, for the
  second year in a row, the full cost of living allowance (3.2%) was funded.
  The Proposition 98 increases have brought K-12 expenditures to almost
  $4,800 per pupil (also called "per ADA" or "Average Daily Attendance"), an
  almost 15% increase
 
                                      A-3
<PAGE>
 
  over the level prevailing during the recession years. Community colleges
  will receive an increase in funding of $157 million for 1996-97 out of this
  $1.6 billion total.
 
    Because of the higher than projected revenues in 1995-96, an additional
  $1.1 billion ($190 per K-12 ADA and $145 million for community colleges)
  was appropriated and retroactively applied towards the 1995-96 Fiscal Year
  Proposition 98 guarantee, bringing K-12 expenditures in that year to over
  $4,600 per ADA. These new funds were appropriated for a variety of
  purposes, including block grants, allocations for each school site,
  facilities for class size reduction, and a reading initiative. Similar
  retroactive increases totaling $230 million, based on final figures on
  revenues and State population growth, were made to the 1991-92 Fiscal Year
  and the 1994-95 Fiscal Year Proposition 98 guarantees, most of which was
  allocated to each school site.
 
    2. The Budget Act assumed savings of approximately $660 million in health
  and welfare costs which required changes in federal law, including federal
  welfare reform. The Budget Act further assumed federal law changes in
  August 1996 which would allow welfare cash grant levels to be reduced by
  October 1, 1996. These cuts totaled approximately $163 million of the
  anticipated $660 million savings.
 
    3. The Budget Act includes a 4.9% increase in funding for the University
  of California ($130 million general fund) and the California State
  University system ($101 million general fund), with no increases in student
  fees, maintaining the second year of the Governor's four-year "Compact"
  with the State's higher education units.
 
    4. The Budget Act assumed the federal government will provide
  approximately $700 million in new aid for incarceration and health care
  costs of illegal immigrants. These funds reduce appropriations in these
  categories that would otherwise have to be paid from the general fund. (For
  purposes of cash flow projections, the State Department of Finance expects
  $540 million of this amount to be received during the 1996-97 Fiscal Year.)
 
    5. General fund support for the State Department of Corrections was
  increased by about 7% over the prior year, reflecting estimates of
  increased prison population.
 
    6. With respect to aid to local governments, the principal new programs
  included in the Budget Act are $100 million in grants to cities and
  counties for law enforcement purposes, and budgeted $50 million for
  competitive grants to local governments for programs to combat juvenile
  crime.
 
  1997-98 Fiscal Year. Once the pension payment eliminated essentially all the
"increased" revenue in the budget, final agreement was reached within a few
weeks on the welfare package and the remainder of the budget. The Legislature
passed the 1997-98 Budget Bill on August 11, 1997, along with numerous related
bills to implement its provisions. Agreement was not finally reached, however,
on one aspect of the budget plan, concerning the Governor's proposal for a
comprehensive educational testing program.
 
  On August 18, 1997, the Governor signed the Budget Act, but vetoed about
$314 million of specific spending items, primarily in health and welfare and
education areas from both the General Fund and Special Funds. The Governor
announced that he was prepared to restore about $200 million of education
spending upon satisfactory completion of legislation on the education testing
program.
 
  The Budget Act anticipated General Fund revenues and transfers of $52.5
billion (a 6.8 percent increase over the final 1996-97 amount), and
expenditures of $52.8 billion (an 8.0 percent increase from the 1996-97
levels). On a budgetary basis, the budget reserve (SFEU) was projected to
decrease from $408 million at June 30, 1997 to $112 million at June 30, 1998.
As of January 9, 1998, the State Director of Finance estimated a reserve of
$329 million at June 30, 1998. (The expenditure figure assumes restoration of
$200 million in vetoed funding.) The Budget Act also included Special Fund
expenditures of $14.4 billion (as against estimated Special Fund revenues of
$14.0 billion), and $2.1 billion of expenditures from various Bond Funds. The
State has implemented its normal annual cash flow borrowing program, issuing
$3 billion of notes which matured on June 30, 1998.
 
                                      A-4
<PAGE>
 
  The following were major features of the 1997-98 Budget Act:
 
    1. The Budget contained a large increase in funding for K-14 education
  under Proposition 98, reflecting strong revenues which exceeded initial
  budgeted amounts. Part of the nearly $1.75 billion in increased spending
  was allocated to prior fiscal years. Funds were provided to fully pay for
  the cost-of-living increase component of Proposition 98, and to extend
  class size reduction and reading initiatives.
 
    2. The Budget Act reflected the $1.235 billion pension case judgment
  payment, and brought funding of the State's pension contribution back to
  the quarterly basis which existed prior to the deferral actions which were
  invalidated by the courts. There was no provision for any additional
  payments relating to this court case.
 
    3. Continuing the third year of a four-year "compact" which the
  Administration made with higher education units, funding from the General
  Fund for the University of California and California State University has
  increased by about 6 percent ($121 million and $107 million, respectively),
  and there was no increase in student fees.
 
    4. Because of the effect of the pension payment, most other State
  programs were continued at 1996-97 levels.
 
    5. Health and welfare costs were contained, continuing generally the
  grant levels from prior years, as part of the initial implementation of the
  new CalWORKs program.
 
    6. Unlike prior years, this Budget Act does not depend on federal budget
  actions. About $300 million in federal funds, already included in the
  federal FY 1997 and 1998 budgets, were included in the Budget Act, to
  offset incarceration costs for illegal aliens.
 
    7. The Budget Act contained no tax increases, and no tax reductions. The
  Renters Tax Credit was suspended for another year, saving approximately
  $500 million.
 
  Federal Welfare Reform. Congress passed and the President signed (on August
22, 1996) the Personal Responsibility and Work Opportunity Act of 1996 (the
"Law") making a fundamental reform of the current welfare system. Among many
provisions, the Law includes: (i) conversion of Aid to Families with Dependent
Children from an entitlement program to a block grant titled Temporary
Assistance for Needy Families ("TANF"), with lifetime time limits on TANF
recipients, work requirements and other changes; (ii) provisions denying
certain federal welfare and public benefits to legal noncitizens, allowing
states to elect to deny additional benefits (including TANF) to legal
noncitizens, and generally denying almost all benefits to illegal immigrants;
and (iii) changes in the Food Stamp program, including reducing maximum
benefits and imposing work requirements.
 
  As part of the 1997-98 Budget Act legislative package, the State Legislature
and Governor agreed on a comprehensive reform of the State's public assistance
programs to implement the new federal Law. The new basic State welfare program
is called California Work Opportunity and Responsibility to Kids Act
("CalWORKs"), which replaces the former Aid to Families with Dependent
Children (AFDC) and Greater Avenues to Independence (GAIN) programs effective
January 1, 1998. Consistent with the federal Law, CalWORKs contains new time
limits on receipt of welfare aid, both lifetime as well as for any current
time on aid. Administration of the new Welfare-to-Work programs will be
largely at the county level, and counties are given financial incentives for
success in this program.
 
  Although the longer-term impact of the new federal Law and CalWORKs cannot
be determined until there has been some experience, the State does not
presently anticipate that these new programs will have any adverse financial
impact on the General Fund. Overall TANF grants from the federal government
are expected to equal or exceed the amounts the State would have received
under the old AFDC program.
 
  Subsequent Events. The Department of Finance released updated estimates for
the 1997-98 Fiscal Year on January 9, 1998 as part of the Governor's 1998-99
Fiscal Year Budget Proposal. Total revenues and transfers are projected at
$52.9 billion, up approximately $360 million from the Budget Act projection.
Expenditures for the fiscal year are expected to rise approximately $200
million above the original Budget Act, to $53.0 billion.
 
                                      A-5
<PAGE>
 
The balance in the budget reserve, the SFEU, is projected to be $329 million
at June 30, 1998, compared to $461 million at June 30, 1997.
 
  Proposed 1998-99 Fiscal Year Budget. In January 1998, the Governor released
his Budget Proposal for the 1998-99 Fiscal Year which was revised in May 1998
(the "Governor's Budget"). The Governor's Budget projects General Fund
revenues and transfers of $57.8 billion, a $3.2 billion increase (5.9%) over
revised 1997-98 revenues. This revenue increase takes into account reduced
revenues of approximately $600 million from the 1997 tax cut package, but also
assumes approximately $500 million additional revenues primarily associated
with capital gains realizations. The Governor's Budget notes, however, that
capital gains activity and the resultant revenues derived from it are very
hard to predict.
 
  Total General Fund expenditures for 1998-99 are recommended at $58.2
billion, an increase of $5.2 billion (9.8%) above the revised 1997-98 level.
The Governor's Budget includes funds to pay the interest claim relating to the
court decision on pension fund payments, PERS v. Wilson described below. The
Governor's Budget projects that the State will carry out its normal intra-year
cash flow external borrowing in 1998-99, in an estimated amount of $3.0
billion. The Governor's Budget projects that budget reserve will be $1.6
billion at June 30, 1999, slightly lower than the projected level at June 30,
1998.
 
  The Governor's Budget projects Special Fund revenues of $14.7 billion and
Special Fund expenditures of $15.2 billion in the 1998-99 Fiscal Year. A total
of $3.2 billion of bond fund expenditures are also proposed.
 
  Pursuant to Article IV, Section 13(c) of the Constitution of the State of
California, the State Legislature is required to adopt its budget for the
upcoming fiscal year (July 1-June 30) by midnight of June 15th, and in the
absence of which, the Legislature may not send to the Governor for
consideration any bill appropriating funds for expenditure during the fiscal
year for which the budget bill is to be enacted, except emergency bills or
appropriations for the salaries and expenses of the Legislature.
 
  For the current fiscal year, as has been true since the late 1980's, the
State Legislature did not adhere to this deadline. Due to the Legislature's
failure to comply with this constitutional requirement, the Howard Jarvis
Taxpayers Association sought an injunction in a Los Angeles Superior Court to
prohibit the State from making certain types of payments in the absence of an
adopted budget. On July 21, 1998, the preliminary injunction was issued. Under
the terms of the injunction order, until such time as the budget has been
adopted, the State may not make any payments from the State treasury for
Fiscal Year 1998-99 except for the following:
 
  (1) salaries and expenses of the Legislature;
 
  (2) payments pursuant to the emergency legislation enacted by AB 2776 and
      AB 1301, respectively, for back interest earnings on deferred employer
      retirement contributions and appropriation of funds relating to trial
      court funding;
 
  (3) payments pursuant to appropriations enacted in response to future
      emergency bills recommended by the Governor;
 
  (4) payments pursuant to specific 1997-98 appropriations enacted prior to
      July 1, 1998, specifically for expenditures to be made in 1998-99; and
 
  (5) "minimum wages" and "overtime wages" for employees covered by the Fair
      Labor Standards Act for work done prior to the date of the order.
 
  On July 22, 1998, the Legislature unanimously passed an $18.9 billion
emergency-spending bill to cover the costs of, among others, bond payments,
paychecks for state workers, retirement pensions, prisons, school and welfare
payments from July 1st through August 5th.
 
  However, before a final resolution of the legal issues raised by the
plaintiff, a budget for fiscal year 1998-99 was passed by the Legislature on
August 11, 1998 and sent to the Governor for signature.
 
                                      A-6
<PAGE>
 
LOCAL GOVERNMENTS
 
  The primary units of local government in California are the counties,
ranging in population from 1,300 (Alpine) to over 9,000,000 (Los Angeles).
Counties are responsible for the provision of many basic services, including
indigent healthcare, welfare, courts, jails and public safety in
unincorporated areas. There are also about 480 incorporated cities and
thousands of other special districts formed for education, utility and other
services. The fiscal condition of local governments has been constrained since
the enactment of "Proposition 13" in 1978, which reduced and limited the
future growth of property taxes and limited the ability of local governments
to impose "special taxes" (those devoted to a specific purpose) without two-
thirds voter approval. Counties, in particular, have had fewer options to
raise revenues than many other local governmental entities, and have been
required to maintain many services.
 
  The entire statewide welfare system has been changed in response to the
change in federal welfare law enacted in 1996 (see "Federal Welfare Reform"
above). Under the CalWORKs program, counties are given flexibility to develop
their own plans, consistent with State law, to implement Welfare-to-Work and
to administer many of its elements and their costs for administrative and
support services are capped at 1996-97 levels. Counties are also given
financial incentives if, at the individual county level or statewide, the
CalWORKs program produces savings associated with specified Welfare-to-Work
outcomes; counties may also suffer penalties for failing to meet federal
standards. Under CalWORKs, counties will still be required to provide "general
assistance" aid to certain persons who cannot obtain welfare from other
programs.
 
  Historically, funding for the State's trial court system was divided between
the State and the counties. However, Chapter 850, Statues of 1997, implements
a restructuring of the State's trial court funding system. In 1997-98, funding
for the courts, with the exception of costs for facilities, local judicial
benefits, and revenue collection, was consolidated at the State level. The
county contribution for both their general fund and fine and penalty amounts
is capped at the 1994-95 level and becomes part of the Trial Court Trust Fund,
which supports all trial court operations. The State assumes responsibility
for future growth in trial court funding. This consolidation is intended to
streamline the operation of the courts, provide a dedicated revenue source,
and relieve fiscal pressure on the counties.
 
  In the aftermath of Proposition 13, the State provided aid from the general
fund to make up some of the loss of property tax moneys, including taking over
the principal responsibility for funding local K-12 schools and community
colleges. Under the pressure of the recent recession, the Legislature has
eliminated remnants of this post-Proposition 13 aid to entities other than K-
14 education districts, although it has also provided additional funding
sources (such as sales taxes) and reduced mandates for local services. Many
counties continue to be under severe fiscal stress. While such stress has in
recent years most often been experienced by smaller, rural counties, larger
urban counties, such as Los Angeles, have also been affected. Orange County
implemented significant reductions in services and personnel, and continues to
face fiscal constraints in the aftermath of its bankruptcy, which has been
caused by large investment losses in its pooled investment funds.
 
  On November 5, 1996, voters approved Proposition 218, entitled the "Right to
Vote on Taxes Act," which incorporates new Articles XIIIC and XIIID into the
California Constitution. These new provisions enact limitations on the ability
of local government agencies to impose or raise various taxes, fees, charges
and assessments without voter approval. Certain "general taxes" imposed after
January 1, 1995 must be approved by voters in order to remain in effect. In
addition, Article XIIIC clarifies the right of local voters to reduce taxes,
fees, assessments to changes through local initiatives.
 
  Proposition 218 does not affect the State or its ability to levy or collect
taxes. There are a number of ambiguities concerning the Proposition and its
impact on local governments and their bonded debt which will require
interpretation by the courts or the State Legislature. The State Legislature
Analyst estimated that enactment of Proposition 218 would reduce local
government revenues statewide by over $100 million a year, and that over time
revenues to local government would be reduced by several hundred million
dollars.
 
 
                                      A-7
<PAGE>
 
CONSTITUTIONAL AND STATUTORY LIMITATIONS; RECENT INITIATIVES; PENDING
LEGISLATION
 
  Constitutional and Statutory Limitations. Article XIIIA of the California
Constitution (which resulted from the voter-approved Proposition 13 in 1978)
limits the taxing powers of California public agencies, Article XIIIA,
provides that the maximum ad valorem tax on real property cannot exceed 1% of
the "full cash value" of the property and effectively prohibits the levying of
any other ad valorem tax on real property for general purposes. However, on
May 3, 1986, Proposition 46, an amendment to Article XIIIA, was approved by
the voters of the State of California, creating a new exemption under Article
XIIIA permitting an increase in ad valorem taxes on real property in excess of
1% for bonded indebtedness approved by two-thirds of the voters voting on the
proposed indebtedness, "Full cash value" is defined as "the County Assessor's
valuation of real property as shown on the 1975-76 Fiscal Year tax bill under
"full cash value' or, thereafter, the appraised value of real property when
purchased, newly constructed, or a change in ownership has occurred after the
1975 assessment." The "full cash value" is subject to annual adjustment to
reflect increases (not to exceed 2%) or decreases in the consumer price index
or comparable local data, or to reflect reductions in property value caused by
damage, destruction or other factors.
 
  Article XIIIB of the California Constitution limits the amount of
appropriations of the State and of the local governments to the amount of
appropriations of the entity for the prior year, adjusted for changes in the
cost of living, population and the services that local government has
financial responsibility for providing. To the extent that the revenues of the
State and/or local government exceed its appropriations, the excess revenues
must be rebated to the public either directly or through a tax decrease.
Expenditures for voter-approved debt services are not included in the
appropriations limit.
 
  At the November 9, 1988 general election, California voters approved an
initiative known as Proposition 98. This initiative amends Article XIIIB to
require that (i) the California Legislature establish a prudent state reserve
fund in an amount it shall deem reasonable and necessary and (ii) revenues in
excess of amounts permitted to be spent and which would otherwise be returned
pursuant to Article XIIIB by revision of tax rates or fee schedules be
transferred and allocated (up to a maximum of 40%) to the State School Fund
and be expended solely for purposes of instructional improvement and
accountability. Proposition 98 also amends Article XVI to require that the
State of California provide a minimum level of funding for public schools and
community colleges. Commencing with the 1988-89 Fiscal Year, money to be
applied by the State for the support of school districts and community college
districts shall not be less than the greater of: (i) the amount which, as a
percentage of the State general fund revenues which may be appropriated
pursuant to Article XIIIB, equals the percentage of such State general fund
revenues appropriated for school districts and community college districts,
respectively, in the 1986-87 Fiscal Year or (ii) the amount required to insure
that the total allocations to school districts and community college districts
from the State general fund proceeds of taxes appropriated pursuant to Article
XIIIB and allocated local proceeds of taxes shall not be less than the total
amount from these sources in the prior year, adjusted for increases in
enrollment and adjusted for changes in the cost of living pursuant to the
provisions of Article XIIIB. The initiative permits the enactment of
legislation, by a two-thirds vote, to suspend the minimum funding requirements
for one year. As a result of Proposition 98, funds that the State might
otherwise make available to its political subdivisions may be allocated
instead to satisfy such minimum funding level.
 
  During the recent recession, general fund revenues for several years were
less than originally projected, so that the original Proposition 98
appropriations turned out to be higher than the minimum percentage provided in
the law. The Legislature responded to these developments by designating the
"extra" Proposition 98 payments in one year as a "loan" from future years'
Proposition 98 entitlements and also intended that the "extra" payments would
not be included in the Proposition 98 "base" for calculating future years'
entitlements. By implementing these actions, per-pupil funding from
Proposition 98 sources stayed almost constant at approximately $4,220 from the
1991-92 Fiscal Year to the 1993-94 Fiscal Year.
 
  In 1992, a lawsuit was filed, called California Teachers' Association v.
Gould, which challenged the validity of these off-budget loans. The settlement
of this case, finalized in July, 1996, provides, among other things, that
 
                                      A-8
<PAGE>
 
both the State and K-14 schools share in the repayment of prior years'
emergency loans to schools. Of the total $1.76 billion in loans, the State
will repay $935 million by forgiveness of the amount owed, while schools will
repay $825 million. The State share of the repayment will be reflected as an
appropriation above the current Proposition 98 base calculation. The schools'
share of the repayment will count either as appropriations that count toward
satisfying the Proposition 98 guarantee, or as appropriations from "below" the
current base. Repayments are spread over the eight-year period of the 1994-95
Fiscal Year through the 2001-02 Fiscal Year to mitigate any adverse fiscal
impact.
 
  Substantially increased general fund revenues, above initial budget
projections, in the 1994-95, 1995-96 and 1996-97 fiscal years have resulted or
will result in retroactive increases in Proposition 98 appropriations from
subsequent fiscal years' budgets.
 
  On November 8, 1994, the voters approved Proposition 187, an initiative
statute ("Proposition 187"). Proposition 187 specifically prohibits funding by
the State of social services, health care services and public school education
for the benefit of any person not verified as either a United States citizen
or a person legally admitted to the United States. Among the provisions in
Proposition 187 pertaining to public school education, the measure requires,
commencing January 1, 1995, that every school district in the State verify the
legal status of every child enrolling in the district for the first time. By
January 1, 1996, each school district must also verify the legal status of
children already enrolled in the district and of all parents or guardians of
all students. If the district "reasonably suspects" that a student, parent or
guardian is not legally in the United States, that district must report the
student to the United States Immigration and Naturalization Service and
certain other parties. The measure also prohibits a school district from
providing education to a student it does not verify as either a United States
citizen or a person legally admitted to the United States. The State
Legislative Analyst estimates that verification costs could be in the tens of
millions of dollars on a statewide level (including verification costs
incurred by other local governments), with first-year costs potentially in
excess of $100 million.
 
  The reporting requirements may violate the Family Educational Rights and
Privacy Act ("FERPA"), which generally prohibits schools that receive federal
funds from disclosing information in student records without parental consent.
Compliance with FERPA is a condition of receiving federal education funds,
which total $2.3 billion annually to California school districts. The
Secretary of the United States Department of Education has indicated that the
reporting requirements in Proposition 187 could jeopardize the ability of
school districts to receive these funds.
 
  Opponents of Proposition 187 have filed at least eight lawsuits challenging
the constitutionality and validity of the measure. On November 2, 1995, a
District Court judge struck down the central provisions of Proposition 187 by
ruling that parts of Propositions 187 conflict with federal power over
immigration. The ruling concluded that states may not enact their own schemes
to "regulate immigration or devise immigration regulations which can parallel
or purport to supplement Federal immigration law." As a consequence of the
ruling, students may not be denied public education and may not be asked about
their immigration status when enrolling in public schools. Further, the ruling
struck down the requirements of Proposition 187 that teachers and district
employees report information on the immigrant status of students, parents and
guardians. An appeal has been filed.
 
  Article XIIIA, Article XIIIB and a number of other propositions were adopted
pursuant to California's constitutional initiative process. From time to time,
other initiative measures could be adopted by California voters. The adoption
of any such initiatives may cause California issuers to receive reduced
revenues, or to increase expenditures, or both.
 
  Pending Litigation. The State is a party to numerous legal proceedings, many
of which normally occur in governmental operations. Some of the more
significant lawsuits pending against the State are described herein.
 
  The State is involved in a lawsuit, Thomas Hayes v. Commission on State
Mandates, related to the state-mandated costs. The action involves an appeal
by the Director of Finance from a 1984 decision by the State Board of Control
(now succeeded by the Commission on State Mandates). The Board of Control
decided in favor
 
                                      A-9
<PAGE>
 
of local school districts' claims for reimbursement for special education
programs for handicapped students. The case was then brought to the trial
court by the State and later remanded to the Commission on State Mandates for
redetermination. The Commission on State Mandates has since expanded the claim
to include supplemental claims filed by seven other educational institutions;
the issuance of a final consolidated decision is anticipated sometime in early
1997. To date, the Legislature has not appropriated funds. The liability to
the State, if all potentially eligible school districts pursue timely claims,
has been estimated by the Department of Finance at more than $1 billion.
 
  The State is involved in a lawsuit related to contamination at the
Stringfellow toxic waste site. In United States, People of the State of
California v. J. B. Stringfellow, Jr., et. al., the State is seeking recovery
for post costs of cleanup of the site, a declaration that the defendants are
jointly and severally liable for future costs, and an injunction ordering
completion of the cleanup. However, the defendants have filed a counterclaim
against the State for alleged negligent acts. Because the State is the present
owner of the site, the State may be found liable. Present estimates of the
cleanup range from $300 million to $800 million.
 
  The State is a defendant in a coordinated action involving 3,000 plaintiffs
seeking recovery for damages caused by the Yuba River flood of February 1986.
The appellate court affirmed the trial court finding of liability in inverse
condemnation and awarded damages of $500,000 to 12 sample plaintiffs.
Potential liability to the remaining 300 plaintiffs, from claims filed, ranges
from $800 million to $1.5 billion. An appeal has been filed.
 
  The State is a defendant in Just Say No To Tobacco Dough Campaign v. State
of California, where the petitioners challenge the appropriation of
approximately $166 million of Proposition 99 funds in the Cigarette and
Tobacco Products Surtax Fund for years ended June 30, 1990, through June 30,
1995 for programs which were allegedly not health education or tobacco-related
disease research. If the State loses, the general fund and funds from other
sources would be used to reimburse the Cigarette and Tobacco Products Surtax
Fund for approximately $166 million.
 
  The State is a defendant in the case of Kurt Hathaway, et al. v. Wilson, et
al., where the plaintiffs are challenging the legality of various budget
action transfers and appropriations from particular special funds for years
ended June 30, 1995, and June 30, 1996. The plaintiffs allege that the
transfers and appropriations are contrary to the substantive law establishing
the funds and providing for interest accruals to the funds, violate the single
subject requirement of the State Constitution, and is an invalid "special
law." Plaintiffs seek to have monies totaling approximately $335 million
returned to the special funds.
 
  The State is a defendant in two related cases, Beno vs. Sullivan (Beno) and
Welch v. Anderson (Welch), concerning reductions in Aid to Families with
Dependent Children ("AFDC") grant payments. In the Beno case, plaintiffs seek
to invalidate AFDC grant reductions and in the Welch case, plaintiffs contend
that AFDC grant reductions are not authorized by state law. The Beno case
concerns the total grant reductions while the Welch case concerns the period
of time the State did not have a waiver for those reductions. The State's
potential liability for retroactive AFDC grant reductions is estimated at $831
million if the plaintiffs are awarded the full amount in both cases.
 
  In the case of Board of Administration, California Public Employees'
Retirement System, et al. v. Pete Wilson, Governor, et al., plaintiffs
challenged the constitutionality of legislation which deferred payment of the
State's employer contribution to the Public Employees' Retirement System
("PERS") beginning in the 1992-93 Fiscal Year. On January 11, 1995, the
Sacramento County Superior Court entered a judgment finding that the
legislation unconstitutionally impaired the vested contract rights of PERS
members. The judgment provides for issuance of a writ of mandate directing
State defendants to disregard the provisions of the legislation, to implement
the statute governing employer contributions that existed before the changes
in the legislation were found to be unconstitutional and to transfer to PERS
the contributions that are unpaid to date. On February 19, 1997, the State
Court of Appeals affirmed the decision of the Superior Court, and the Supreme
Court subsequently refused to hear the case, making the Court of Appeals'
ruling final. On July 30, 1997, the Controller transferred $1.235 billion from
the General Fund to PERS in repayment of the principal amount determined to
 
                                     A-10
<PAGE>
 
have been improperly deferred. Subsequent State payments to PERS will be made
on a quarterly basis. No prejudgment interest has been paid in accordance with
the trial court ruling that there was insufficient evidence that money for
that purpose had been appropriated and was available. No post-judgment
interest was ordered. PERS has filed a claim with the State Board of Control
in the amount of $308 million for the accrued interest on the judgment. PERS
also seeks interest on the unpaid accrued interest amount. The State Board of
Control approved this claim in March 1998.
 
                                     A-11
<PAGE>
 
                                  APPENDIX B
 
                RATINGS OF MUNICIPAL BONDS AND COMMERCIAL PAPER
 
DESCRIPTION OF MOODY'S INVESTORS SERVICE, INC.'S ("MOODY'S") MUNICIPAL BOND
RATINGS
 
Aaa  Bonds which are rated Aaa are judged to be of the best quality. They
     carry the smallest degree of investment risk and are generally
     referred to as "gilt edge." Interest payments are protected by a large
     or by an exceptionally stable margin and principal is secure. While
     the various protective elements are likely to change, such changes as
     can be visualized are most unlikely to impair the fundamentally strong
     position of such issues.
 
Aa   Bonds which are rated Aa are judged to be of high quality by all
     standards. Together with the Aaa group they comprise what are
     generally known as high grade bonds. They are rated lower than the
     best bonds because margins of protection may not be as large as in Aaa
     securities or fluctuation of protective elements may be of greater
     amplitude or there may be other elements present which make the long-
     term risks appear somewhat larger than in Aaa securities.
 
A    Bonds which are rated A possess many favorable investment attributes
     and are to be considered as upper medium grade obligations. Factors
     giving security to principal and interest are considered adequate, but
     elements may be present which suggest a susceptibility to impairment
     sometime in the future.
 
Baa  Bonds which are rated Baa are considered as medium grade obligations,
     i.e., they are neither highly protected nor poorly secured. Interest
     payments and principal security appear adequate for the present, but
     certain protective elements may be lacking or may be
     characteristically unreliable over any great length of time. Such
     bonds lack outstanding investment characteristics and in fact have
     speculative characteristics as well.
 
Ba   Bonds which are rated Ba are judged to have speculative elements;
     their future cannot be considered as well assured. Often the
     protection of interest and principal payments may be very moderate and
     thereby not well safeguarded during both good and bad times over the
     future. Uncertainty of position characterizes bonds in this class.
 
B    Bonds which are rated B generally lack characteristics of the
     desirable investment. Assurance of interest and principal payments or
     of maintenance of other terms of the contract over any long period of
     time may be small.
 
Caa  Bonds which are rated Caa are of poor standing. Such issues may be in
     default or there may be present elements of danger with respect to
     principal or interest.
 
Ca   Bonds which are rated Ca represent obligations which are speculative
     in a high degree. Such issues are often in default or have other
     marked shortcomings.
 
C    Bonds which are rated C are the lowest rated class of bonds and issues
     so rated can be regarded as having extremely poor prospects of ever
     attaining any real investment standing.
 
 
  Note: These bonds in the Aa, A, Baa, Ba and B groups which Moody's believes
possess the strongest investment attributes are designated by the symbols Aa1,
Al, Baal, Bal and B1.
 
  Short-term Notes: The four ratings of Moody's for short-term notes are MIG
1/VMIG 1, MIG 2/VMIG 2, MIG 3/VMIG 3, and MIG 4/VMIG 4; MIG 1/VMIG 1 denotes
"best quality, enjoying strong protection from established cash flows"; MIG
2/VMIG 2 denotes "high quality" with "ample margins of protection"; MIG 3/VMIG
3 instruments are of "favorable quality . . . but . . . lacking the undeniable
strength of the preceding grades"; MIG 4/VMIG 4 instruments are of "adequate
quality . . . [p]rotection commonly regarded as required of an investment
security is present . . . there is specific risk."
 
 
                                      B-1
<PAGE>
 
DESCRIPTION OF MOODY'S COMMERCIAL PAPER RATINGS
 
  Moody's Commercial Paper ratings are opinions of the ability of issuers to
repay punctually promissory obligations not having an original maturity in
excess of nine months. Moody's employs the following three designations, all
judged to be investment grade, to indicate the relative repayment capacity of
rated issuers:
 
  Issuers rated Prime-1 (or supporting institutions) have a superior ability
for repayment of short-term promissory obligations. Prime-l repayment capacity
will often be evidenced by the following characteristics: leading market
positions in well established industries; high rates of return on funds
employed; conservative capitalization structures with moderate reliance on
debt and ample asset protection; broad margins in earning coverage of fixed
financial charges and high internal cash generation; and with established
access to a range of financial markets and assured sources of alternate
liquidity.
 
  Issuers rated Prime-2 (or supporting institutions) have a strong ability for
repayment of short-term promissory obligations. This will normally be
evidenced by many of the characteristics cited above but to a lesser degree.
Earnings trends and coverage ratios, while sound, will be more subject to
variation. Capitalization characteristics, while still appropriate, may be
more affected by external conditions. Ample alternate liquidity is maintained.
 
  Issuers rated Prime-3 (or supporting institutions) have an acceptable
ability for repayment of short-term promissory obligations. The effects of
industry characteristics and market composition may be more pronounced.
Variability in earnings and profitability may result in changes to the level
of debt protection measurements and the requirement for relatively high
financial leverage. Adequate alternate liquidity is maintained.
 
  Issuers rated Not Prime do not fall within any of the Prime rating
categories.
 
DESCRIPTION OF STANDARD & POOR'S, A DIVISION OF THE MCGRAW-HILL COMPANIES,
INC. ("STANDARD & POOR'S"), MUNICIPAL DEBT RATINGS
 
  A Standard & Poor's municipal debt rating is a current assessment of the
creditworthiness of an obligor with respect to a specific financial
obligation, a specific class of financial obligations or a specific program.
It takes into consideration the creditworthiness of guarantors, insurers, or
other forms of credit enhancement on the obligation.
 
  The debt rating is not a recommendation to purchase, sell or hold a
financial obligation, inasmuch as it does not comment as to market price or
suitability for a particular investor.
 
  The ratings are based on current information furnished by the issuer or
obtained by Standard & Poor's from other sources Standard & Poor's considers
reliable. Standard & Poor's does not perform an audit in connection with any
rating and may, on occasion, rely on unaudited financial information. The
ratings may be changed, suspended or withdrawn as a result of changes in, or
unavailability of, such information, or based on other circumstances.
 
  The ratings are based, in varying degrees, on the following considerations:
 
    I. Likelihood of default--capacity and willingness of the obligor as to
  the timely payment of interest and repayment of principal in accordance
  with the terms of the obligation;
 
    II. Nature of and provisions of the obligation;
 
    III. Protection afforded to, and relative position of, the obligation in
        the event of bankruptcy, reorganization or other arrangement under
        the laws of bankruptcy and other laws affecting creditors' rights.
 
AAA    Debt rated "AAA" has the highest rating assigned by Standard & Poor's.
       Capacity of the obligor to meet its financial commitment on the
       obligation is extremely strong.
 
AA     Debt rated "AA" differs from the highest-rated issues only in small
       degree. The obligor's capacity to meet its financial commitment on the
       obligation is very strong.
 
 
                                      B-2
<PAGE>
 
A      Debt rated "A" is somewhat more susceptible to the adverse effects of
       changes in circumstances and economic conditions than debt in higher-
       rated categories. However, the obligor's capacity to meet its financial
       commitment on the obligation is still strong.
 
BBB    Debt rated "BBB" exhibits adequate protection parameters. However,
       adverse economic conditions or changing circumstances are more likely
       to lead to a weakened capacity of the obligor to meet its financial
       commitment on the obligation.
 
BB B CCC CC C
       Debt rated "BB," "B," "CCC," "CC" and "C" are regarded as having
       significant speculative characteristics. "BB" indicates the least
       degree of speculation and "C" the highest degree of speculation. While
       such debt will likely have some quality and protective characteristics,
       these may be outweighed by large uncertainties or major risk exposures
       to adverse conditions.
 
 
 
D      Debt rated "D" is in payment default. The "D" rating category is used
       when payments on an obligation are not made on the date due even if the
       applicable grace period has not expired, unless Standard & Poor's
       believes that such payments will be made during such grace period. The
       "D" rating also will be used upon the filing of a bankruptcy petition
       or the taking of similar action if payments on an obligation are
       jeopardized.
 
  Plus (+) or Minus (-): The ratings from "AA" to "CCC" may be modified by the
addition of a plus or minus sign to show relative standing within the major
rating categories.
 
DESCRIPTION OF STANDARD & POOR'S COMMERCIAL PAPER RATINGS
 
  A Standard & Poor's commercial paper rating is a current assessment of the
likelihood of timely payment of debt having an original maturity of no more
than 365 days. Ratings are graded into several categories, ranging from "A-l"
for the highest quality obligations to "D" for the lowest. These categories
are as follows:
 
A-1    This designation indicates that the degree of safety regarding timely
       payment is strong. Those issues determined to possess extremely strong
       safety characteristics are denoted with a plus sign (+) designation.
 
A-2    Capacity for timely payment on issues with this designation is
       satisfactory. However, the relative degree of safety is not as high as
       for issues designated "A-1."
 
A-3    Issues carrying this designation have adequate capacity for timely
       payment. They are, however, more vulnerable to the adverse effects of
       changes in circumstances than obligations carrying the higher
       designations.
 
B Issues rated "B" are regarded as having only speculative capacity for timely
payment.
 
C This rating is assigned to short-term debt obligations with a doubtful
capacity for payment.
 
D      Debt rated "D" is in payment default. The "D" rating category is used
       when interest payments or principal payments are not made on the date
       due, even if the applicable grace period has not expired unless
       Standard & Poor's believes that such payments will be made during such
       grace period.
 
  A commercial paper rating is not a recommendation to purchase or sell a
security. The ratings are based on current information furnished to Standard &
Poor's by the issuer or obtained by Standard & Poor's from other sources it
considers reliable. The ratings may be changed, suspended, or withdrawn as a
result of changes in, or unavailability of, such information.
 
  A Standard & Poor's note rating reflects the liquidity factors and market
access risks unique to such notes. Notes due in three years or less will
likely receive a note rating. Notes maturing beyond three years will most
likely receive a long-term debt rating. The following criteria will be used in
making that assessment.
 
    --Amortization schedule--the larger the final maturity relative to
    other maturities, the more likely it will be treated as a note.
 
 
                                      B-3
<PAGE>
 
    --Source of payment--the more dependent the issue is on the market for
    its refinancing, the more likely it will be treated as a note.
 
  Note rating symbols are as follows:
 
SP-1   Strong capacity to pay principal and interest. An issue determined to
       possess a very strong capacity to pay debt service is given a plus (+)
       designation.
 
SP-2   Satisfactory capacity to pay principal and interest with some
       vulnerability to adverse financial and economic changes over the term
       of the notes.
 
SP-3Speculative capacity to pay principal and interest.
 
DESCRIPTION OF FITCH IBCA, INC.'S ("FITCH") INVESTMENT GRADE BOND RATINGS
 
  Fitch investment grade bond ratings provide a guide to investors in
determining the credit risk associated with a particular security. The rating
represents Fitch's assessment of the issuer's ability to meet the obligations
of a specific debt issue or class of debt in a timely manner.
 
  The rating takes into consideration special features of the issue, its
relationship to other obligations of the issuer, the current and prospective
financial condition and operating performance of the issuer and any guarantor,
as well as the economic and political environment that might affect the
issuer's future financial strength and credit quality.
 
  Fitch ratings do not reflect any credit enhancement that may be provided by
insurance policies or financial guarantees unless otherwise indicated.
 
  Bonds that have the same rating are of similar but not necessarily identical
credit quality since the rating categories do not fully reflect small
differences in the degrees of credit risk.
 
  Fitch ratings are not recommendations to buy, sell, or hold any security.
Ratings do not comment on the adequacy of market price, the suitability of any
security for a particular investor, or the tax-exempt nature or taxability of
payments made in respect of any security.
 
  Fitch ratings are based on information obtained from issuers, other
obligors, underwriters, their experts, and other sources Fitch believes to be
reliable. Fitch does not audit or verify the truth or accuracy of such
information. Ratings may be changed, suspended, or withdrawn as a result of
changes in, or the unavailability of, information or for other reasons.
 
AAA         Bonds considered to be investment grade and of the highest credit
            quality. The obligor has an exceptionally strong ability to pay
            interest and repay principal, which is unlikely to be affected by
            reasonably foreseeable events.
 
AA          Bonds considered to be investment grade and of very high credit
            quality. The obligor's ability to pay interest and repay principal
            is very strong, although not quite as strong as bonds rated "AAA."
            Because bonds rated in the "AAA" and "AA" categories are not
            significantly vulnerable to foreseeable future developments,
            short-term debt of these issuers is generally rated "F-1+."
 
A           Bonds considered to be investment grade and of high credit
            quality. The obligor's ability to pay interest and repay principal
            is considered to be strong, but may be more vulnerable to adverse
            changes in economic conditions and circumstances than bonds with
            higher ratings.
 
BBB
            Bonds considered to be investment grade and of satisfactory-credit
            quality. The obligor's ability to pay interest and repay principal
            is considered to be adequate. Adverse changes in economic
            conditions and circumstances, however, are more likely to have
            adverse impact on
 
                                      B-4
<PAGE>
 
            these bonds, and therefore impair timely payment. The likelihood
            that the ratings of these bonds will fall below investment grade
            is higher than for bonds with higher ratings.
 
  Plus (+) or Minus (-): Plus and minus signs are used with a rating symbol to
indicate the relative position of a credit within the rating category. Plus
and minus signs, however, are not used in the "AAA" category.
 
NR          Indicates that Fitch does not rate the specific issue.
 
Conditional A conditional rating is premised on the successful completion of a
            project or the occurrence of a specific event.
 
Suspended   A rating is suspended when Fitch deems the amount of information
            available from the issuer to be inadequate for rating purposes.
 
Withdrawn   A rating will be withdrawn when an issue matures or is called or
            refinanced and, at Fitch's discretion, when an issuer fails to
            furnish proper and timely information.
 
FitchAlert  Ratings are placed on FitchAlert to notify investors of an
            occurrence that is likely to result in a rating change and the
            likely direction of such change. These are designated as
            "Positive," indicating a potential upgrade, "Negative," for
            potential downgrade, or "Evolving," where ratings may be raised or
            lowered. FitchAlert is relatively short-term, and should be
            resolved within three to 12 months.
 
Ratings Outlook
            An outlook is used to describe the most likely direction of any
            rating change over thentermediate term. It is described as
            "Positive" or "Negative." The absence of a designation indicates a
            stable outlook.
 
 
DESCRIPTION OF FITCH'S SPECULATIVE GRADE BOND RATINGS
 
  Fitch speculative grade bond ratings provide a guide to investors in
determining the credit risk associated with a particular security. The ratings
("BB" to "C") represent Fitch's assessment of the likelihood of timely payment
of principal and interest in accordance with the terms of obligation for bond
issues not in default. For defaulted bonds, the rating ("DDD" to "D") is an
assessment of the ultimate recovery value through reorganization or
liquidation.
 
  The rating takes into consideration special features of the issue, its
relationship to other obligations of the issuer, the current and prospective
financial condition and operating performance of the issuer and any guarantor,
as well as the economic and political environment that might affect the
issuer's future financial strength.
 
  Bonds that have the rating are of similar but not necessarily identical
credit quality since rating categories cannot fully reflect the differences in
degrees of credit risk.
 
BB          Bonds are considered speculative. The obligor's ability to pay
            interest and repay principal may be affected over time by adverse
            economic changes. However, business and financial alternatives can
            be identified which could assist the obligor in satisfying its
            debt service requirements.
 
B           Bonds are considered highly speculative. While bonds in this class
            are currently meeting debt service requirements, the probability
            of continued timely payment of principal and interest reflects the
            obligor's limited margin of safety and the need for reasonable
            business and economic activity throughout the life of the issue.
 
CCC
            Bonds have certain identifiable characteristics which, if not
            remedied, may lead to default. The ability to meet obligations
            requires an advantageous business and economic environment.
 
                                      B-5
<PAGE>
 
CC          Bonds are minimally protected. Default in payment of interest
            and/or principal seems probable over time.
 
C           Bonds are in imminent default in payment of interest or principal.
 
DDD DD D    Bonds are in default on interest and/or principal payments. Such
            bonds are extremely speculative and should be valued on the basis
            of their ultimate recovery value in liquidation or reorganization
            of the obligor. "DDD" represents the highest potential for
            recovery on these bonds, and "D" represents the lowest potential
            for recovery.
 
  Plus (+) or Minus (-): Plus and minus signs are used with a rating symbol to
indicate the relative position of a credit within the rating category. Plus
and minus signs, however, are not used in the "DDD," "DD," or "D" categories.
 
DESCRIPTION OF FITCH'S SHORT-TERM RATINGS
 
  Fitch's short-term ratings apply to debt obligations that are payable on
demand or have original maturities of up to three years, including commercial
paper, certificates of deposit, medium-term notes, and municipal and
investment notes.
 
  The short-term rating places greater emphasis than a long-term rating on the
existence of liquidity necessary to meet the issuer's obligations in a timely
manner.
 
  Fitch short-term ratings are as follows:
 
F-1+        Exceptionally Strong Credit Quality. Issues assigned this rating
            are regarded as having the strongest degree of assurance for
            timely payment.
 
F-1         Very Strong Credit Quality. Issues assigned this rating reflect an
            assurance of timely payment only slightly less in degree than
            issues rated "F-1+."
 
F-2         Good Credit Quality. Issues assigned this rating have a
            satisfactory degree of assurance for timely payment, but the
            margin of safety is not as great as for issues assigned "F-1+" and
            "F-1" ratings.
 
F-3         Fair Credit Quality. Issues assigned this rating have
            characteristics suggesting that the degree of assurance for timely
            payment is adequate; however, near-term adverse changes could
            cause these securities to be rated below investment grade.
 
F-S         Weak Credit Quality. Issues assigned this rating have
            characteristics suggesting a minimal degree of assurance for
            timely payment and are vulnerable to near-term adverse changes in
            financial and economic conditions.
 
D           Default. Issues assigned this rating are in actual or imminent
            payment default.
 
LOC         The symbol "LOC" indicates that the rating is based on a letter of
            credit issued by a commercial bank.
 
                                      B-6
<PAGE>
 
                                                                     APPENDIX C
 
                             SETTLEMENT PROCEDURES
 
  The following summary of Settlement Procedures sets forth the procedures
expected to be followed in connection with the settlement of each Auction and
will be incorporated by reference in the Auction Agent Agreement and each
Broker-Dealer Agreement. Nothing contained in this Appendix C constitutes a
representation by the Fund that in each Auction each party referred to herein
actually will perform the procedures described herein to be performed by such
party. Capitalized terms used herein shall have the respective meanings
specified in the glossary of this Prospectus or Appendix D hereto, as the case
may be.
 
  (a) On each Auction Date, the Auction Agent shall notify by telephone or
through the Auction Agent's Processing System the Broker-Dealers that
participated in the Auction held on such Auction Date and submitted an Order
on behalf of any Beneficial Owner or Potential Beneficial Owner of:
 
    (i) the Applicable Rate fixed for the next succeeding Dividend Period;
 
    (ii) whether Sufficient Clearing Bids existed for the determination of
  the Applicable Rate;
 
    (iii) if such Broker-Dealer (a "Seller's Broker-Dealer") submitted a Bid
  or a Sell Order on behalf of a Beneficial Owner, the number of shares, if
  any, of AMPS to be sold by such Beneficial Owner;
 
    (iv) if such Broker-Dealer (a "Buyer's Broker-Dealer") submitted a Bid on
  behalf of a Potential Beneficial Owner, the number of shares, if any, of
  AMPS to be purchased by such Potential Beneficial Owner;
 
    (v) if the aggregate number of shares of AMPS to be sold by all
  Beneficial Owners on whose behalf such Broker-Dealer submitted a Bid or a
  Sell Order exceeds the aggregate number of shares of AMPS to be purchased
  by all Potential Beneficial Owners on whose behalf such Broker-Dealer
  submitted a Bid, the name or names of one or more Buyer's Broker-Dealers
  (and the name of the Agent Member, if any, of each such Buyer's Broker-
  Dealer) acting for one or more purchasers of such excess number of shares
  of AMPS and the number of such shares to be purchased from one or more
  Beneficial Owners on whose behalf such Broker-Dealer acted by one or more
  Potential Beneficial Owners on whose behalf each of such Buyer's Broker-
  Dealers acted;
 
    (vi) if the aggregate number of shares of AMPS to be purchased by all
  Potential Beneficial Owners on whose behalf such Broker-Dealer submitted a
  Bid exceeds the aggregate number of shares of AMPS to be sold by all
  Beneficial Owners on whose behalf such Broker-Dealer submitted a Bid or a
  Sell Order, the name or names of one or more Seller's Broker-Dealers (and
  the name of the Agent Member, if any, of each such Seller's Broker-Dealer)
  acting for one or more sellers of such excess number of shares of AMPS and
  the number of such shares to be sold to one or more Potential Beneficial
  Owners on whose behalf such Broker-Dealer acted by one or more Beneficial
  Owners on whose behalf each of such Seller's Broker-Dealers acted; and
 
    (vii) the Auction Date of the next succeeding Auction with respect to the
  AMPS.
 
  (b) On each Auction Date, each Broker-Dealer that submitted an Order on
behalf of any Beneficial Owner or Potential Beneficial Owner shall:
 
    (i) in the case of a Broker-Dealer that is a Buyer's Broker-Dealer,
  instruct each Potential Beneficial Owner on whose behalf such Broker-Dealer
  submitted a Bid that was accepted, in whole or in part, to instruct such
  Potential Beneficial Owner's Agent Member to pay to such Broker-Dealer (or
  its Agent Member) through the Securities Depository the amount necessary to
  purchase the number of shares of AMPS to be purchased pursuant to such Bid
  against receipt of such shares and advise such Potential Beneficial Owner
  of the Applicable Rate for the next succeeding Dividend Period;
 
                                      C-1
<PAGE>
 
    (ii) in the case of a Broker-Dealer that is a Seller's Broker-Dealer,
  instruct each Beneficial Owner on whose behalf such Broker-Dealer submitted
  a Sell Order that was accepted, in whole or in part, or a Bid that was
  accepted, in whole or in part, to instruct such Beneficial Owner's Agent
  Member to deliver to such Broker-Dealer (or its Agent Member) through the
  Securities Depository the number of shares of AMPS to be sold pursuant to
  such Order against payment therefor and advise any such Beneficial Owner
  that will continue to hold shares of AMPS of the Applicable Rate for the
  next succeeding Dividend Period;
 
    (iii) advise each Beneficial Owner on whose behalf such Broker-Dealer
  submitted a Hold Order of the Applicable Rate for the next succeeding
  Dividend Period;
 
    (iv) advise each Beneficial Owner on whose behalf such Broker-Dealer
  submitted an Order of the Auction Date for the next succeeding Auction; and
 
    (v) advise each Potential Beneficial Owner on whose behalf such Broker-
  Dealer submitted a Bid that was accepted, in whole or in part, of the
  Auction Date for the next succeeding Auction.
 
  (c) On the basis of the information provided to it pursuant to (a) above,
each Broker-Dealer that submitted a Bid or a Sell Order on behalf of a
Potential Beneficial Owner or a Beneficial Owner shall, in such manner and at
such time or times as in its sole discretion it may determine, allocate any
funds received by it pursuant to (b) (i) above and any shares of AMPS received
by it pursuant to (b) (ii) above among the Potential Beneficial Owners, if
any, on whose behalf such Broker-Dealer submitted Bids, the Beneficial Owners,
if any, on whose behalf such Broker-Dealer submitted Bids that were accepted
or Sell Orders, and any Broker-Dealer or Broker-Dealers identified to it by
the Auction Agent pursuant to (a) (v) or (a)(vi) above.
 
  (d) On each Auction Date:
 
    (i) each Potential Beneficial Owner and Beneficial Owner shall instruct
  its Agent Member as provided in (b) (i) or (ii) above, as the case may be;
 
    (ii) each Seller's Broker-Dealer which is not an Agent Member of the
  Securities Depository shall instruct its Agent Member to (A) pay through
  the Securities Depository to the Agent Member of the Beneficial Owner
  delivering shares to such Broker-Dealer pursuant to (b)(ii) above the
  amount necessary to purchase such shares against receipt of such shares,
  and (B) deliver such shares through the Securities Depository to a Buyer's
  Broker-Dealer (or its Agent Member) identified to such Seller's Broker-
  Dealer pursuant to (a)(v) above against payment therefor; and
 
    (iii) each Buyer's Broker-Dealer which is not an Agent Member of the
  Securities Depository shall instruct its Agent Member to (A) pay through
  the Securities Depository to a Seller's Broker-Dealer (or its Agent Member)
  identified pursuant to (a) (vi) above the amount necessary to purchase the
  shares to be purchased pursuant to (b)(i) above against receipt of such
  shares, and (B) deliver such shares through the Securities Depository to
  the Agent Member of the purchaser thereof against payment therefor.
 
  (e) On the day after the Auction Date:
 
    (i) each Bidder's Agent Member referred to in (d) (i) above shall
  instruct the Securities Depository to execute the transactions described in
  (b) (i) or (ii) above, and the Securities Depository shall execute such
  transactions;
 
    (ii) each Seller's Broker-Dealer or its Agent Member shall instruct the
  Securities Depository to execute the transactions described in (d)(ii)
  above, and the Securities Depository shall execute such transactions; and
 
    (iii) each Buyer's Broker-Dealer or its Agent Member shall instruct the
  Securities Depository to execute the transactions described in (d) (iii)
  above, and the Securities Depository shall execute such transactions.
 
                                      C-2
<PAGE>
 
  (f) If a Beneficial Owner selling shares of AMPS in an Auction fails to
deliver such shares (by authorized book-entry), a Broker-Dealer may deliver to
the Potential Beneficial Owner on behalf of which it submitted a Bid that was
accepted a number of whole shares of AMPS that is less than the number of
shares that otherwise was to be purchased by such Potential Beneficial Owner.
In such event, the number of shares of AMPS to be so delivered shall be
determined solely by such Broker-Dealer. Delivery of such lesser number of
shares shall constitute good delivery. Notwithstanding the foregoing terms of
this paragraph (f), any delivery or non-delivery of shares which shall
represent any departure from the results of an Auction, as determined by the
Auction Agent, shall be of no effect unless and until the Auction Agent shall
have been notified of such delivery or non-delivery in accordance with the
provisions of the Auction Agent Agreement and the Broker-Dealer Agreements.
 
                                      C-3
<PAGE>
 
                                                                     APPENDIX D
 
                              AUCTION PROCEDURES
 
  The following procedures will be set forth in provisions of the Articles
Supplementary relating to the AMPS, and will be incorporated by reference in
the Auction Agent Agreement and each Broker-Dealer Agreement. The terms not
defined below are defined in the forepart of this Prospectus. Nothing
contained in this Appendix D constitutes a representation by the Fund that in
each Auction each party referred to herein actually will perform the
procedures described herein to be performed by such party.
 
PARAGRAPH 10(A) CERTAIN DEFINITIONS.
 
  As used in this Paragraph 10, the following terms shall have the following
meanings, unless the context otherwise requires:
 
  (i) "AMPS" shall mean the shares of AMPS being auctioned pursuant to this
Paragraph 10.
 
  (ii) "Auction Date" shall mean the first Business Day preceding the first
day of a Dividend Period.
 
  (iii) "Available AMPS" shall have the meaning specified in Paragraph
10(d)(i) below.
 
  (iv) "Bid" shall have the meaning specified in Paragraph 10(b)(i) below.
 
  (v) "Bidder" shall have the meaning specified in Paragraph 10(b)(i) below.
 
  (vi) "Hold Order" shall have the meaning specified in Paragraph 10(b)(i)
below.
 
  (vii) "Maximum Applicable Rate" for any Dividend Period will be the
Applicable Percentage of the Reference Rate. The Applicable Percentage will be
determined based on (i) the lower of the credit rating or ratings assigned on
such date to such shares by Moody's and S&P (or if Moody's or S&P or both
shall not make such rating available, the equivalent of either or both of such
ratings by a Substitute Rating Agency or two Substitute Rating Agencies or, in
the event that only one such rating shall be available, such rating) and (ii)
whether the Fund has provided modification to the Auction Agent prior to the
Auction establishing the Applicable Rate for any dividend that net capital
gains or other taxable income will be included in such dividend on shares of
AMPS as follows:
 
<TABLE>
<CAPTION>
                                    APPLICABLE
                                  PERCENTAGE OF      APPLICABLE
          CREDIT RATINGS         REFERENCE RATE--  PERCENTAGE OF
  ------------------------------        NO        REFERENCE RATE--
      MOODY'S           S&P        NOTIFICATION     NOTIFICATION
  ---------------- ------------- ---------------- ---------------- --- ---
<S>                <C>           <C>              <C>              <C> <C>
  "aa3" or higher  AA- or Higher       110%             150%
    "a3" or "a1"     A- to A+          125%             160%
  "baa3" to "baa1" BBB- to BBB+        150%             250%
    Below "baa3"    Below BBB-         200%             275%
</TABLE>
 
  The Fund shall take all reasonable action necessary to enable S&P and
Moody's to provide a rating for the AMPS. If either S&P or Moody's shall not
make such a rating available, or if neither S&P nor Moody's shall make such a
rating available, Merrill Lynch, Pierce, Fenner & Smith Incorporated or its
affiliates and successors, after consultation with the Fund, shall select a
nationally recognized statistical rating organization or two nationally
recognized statistical rating organizations to act as a Substitute Rating
Agency or Substitute Rating Agencies, as the case may be.
 
  (viii) "Order" shall have the meaning specified in Paragraph 10(b)(i) below.
 
                                      D-1
<PAGE>
 
  (ix) "Sell Order" shall have the meaning specified in Paragraph 10(b)(i)
below.
 
  (x) "Submission Deadline" shall mean 1:00 p.m., New York City time, on any
Auction Date or such other time on any Auction Date as may be specified by the
Auction Agent from time to time as the time by which each Broker-Dealer must
submit to the Auction Agent in writing all Orders obtained by it for the
Auction to be conducted on such Auction Date.
 
  (xi) "Submitted Bid" shall have the meaning specified in Paragraph 10(d)(i)
below.
 
  (xii) "Submitted Hold Order" shall have the meaning specified in Paragraph
10(d)(i) below.
 
  (xiii) "Submitted Order" shall have the meaning specified in Paragraph
10(d)(i) below.
 
  (xiv) "Submitted Sell Order" shall have the meaning specified in Paragraph
10(d)(i) below.
 
  (xv) "Sufficient Clearing Bids" shall have the meaning specified in
Paragraph 10(d)(i) below.
 
  (xvi)  "Winning Bid Rate" shall have the meaning specified in Paragraph
10(d)(i) below.
 
PARAGRAPH 10(B) ORDERS BY BENEFICIAL OWNERS, POTENTIAL BENEFICIAL OWNERS,
EXISTING HOLDERS AND POTENTIAL HOLDERS.
 
  (i) Unless otherwise permitted by the Fund, Beneficial Owners and Potential
Beneficial Owners may only participate in Auctions through their Broker-
Dealers. Broker-Dealers will submit the Orders of their respective customers
who are Beneficial Owners and Potential Beneficial Owners to the Auction
Agent, designating themselves as Existing Holders in respect of shares subject
to Orders submitted or deemed submitted to them by Beneficial Owners and as
Potential Holders in respect of shares subject to Orders submitted to them by
Potential Beneficial Owners. A Broker-Dealer may also hold shares of AMPS in
its own account as a Beneficial Owner. A Broker-Dealer may thus submit Orders
to the Auction Agent as a Beneficial Owner or a Potential Beneficial Owner and
therefore participate in an Auction as an Existing Holder or Potential Holder
on behalf of both itself and its customers. On or prior to the Submission
Deadline on each Auction Date:
 
    (A) each Beneficial Owner may submit to its Broker-Dealer information as
  to:
 
      (1) the number of outstanding shares, if any, of AMPS held by such
    Beneficial Owner which such Beneficial Owner desires to continue to
    hold without regard to the Applicable Rate for the next succeeding
    Dividend Period;
 
      (2) the number of outstanding shares, if any, of AMPS held by such
    Beneficial Owner which such Beneficial Owner desires to continue to
    hold, provided that the Applicable Rate for the next succeeding
    Dividend Period shall not be less than the rate per annum specified by
    such Beneficial Owner, and/or
 
      (3) the number of outstanding shares, if any, of AMPS held by such
    Beneficial Owner which such Beneficial Owner offers to sell without
    regard to the Applicable Rate for the next succeeding Dividend Period;
    and
 
    (B) each Broker-Dealer, using a list of Potential Beneficial Owners that
  shall be maintained in good faith for the purpose of conducting a
  competitive Auction, shall contact Potential Beneficial Owners, including
  Persons that are not Beneficial Owners, on such list to determine the
  number of outstanding shares, if any, of AMPS which each such Potential
  Beneficial Owner offers to purchase, provided that the Applicable Rate for
  the next succeeding Dividend Period shall not be less than the rate per
  annum specified by such Potential Beneficial Owner.
 
  For the purposes hereof, the communication by a Beneficial Owner or
Potential Beneficial Owner to a Broker-Dealer, or the communication by a
Broker-Dealer acting for its own account to the Auction Agent, of information
referred to in clause (A) or (B) of this Paragraph 10(b)(i) is hereinafter
referred to as an "Order"
 
                                      D-2
<PAGE>
 
and each Beneficial Owner and each Potential Beneficial Owner placing an
Order, including a Broker-Dealer acting in such capacity for its own account,
is hereinafter referred to as a "Bidder"; an Order containing the information
referred to in clause (A)(1) of this Paragraph 10(b)(i) is hereinafter
referred to as a "Hold Order"; an Order containing the information referred to
in clause (A)(2) or (B) of this Paragraph 10(b)(i) is hereinafter referred to
as a "Bid"; and an Order containing the information referred to in clause
(A)(3) of this Paragraph 10(b)(i) is hereinafter referred to as a "Sell
Order." Inasmuch as a Broker-Dealer participates in an Auction as an Existing
Holder or a Potential Holder only to represent the interests of a Beneficial
Owner or Potential Beneficial Owner, whether it be its customers or itself,
all discussion herein relating to the consequences of an Auction for Existing
Holders and Potential Holders also applies to the underlying beneficial
ownership interests represented.
 
  (ii) (A) A Bid by an Existing Holder shall constitute an irrevocable offer
to sell:
 
    (1) the number of outstanding shares of AMPS specified in such Bid if the
  Applicable Rate determined on such Auction Date shall be less than the rate
  per annum specified in such Bid; or
 
    (2) such number or a lesser number of outstanding shares of AMPS to be
  determined as set forth in Paragraph 10(e)(i)(D) if the Applicable Rate
  determined on such Auction Date shall be equal to the rate per annum
  specified therein; or
 
    (3) a lesser number of outstanding shares of AMPS to be determined as set
  forth in Paragraph 10(e)(ii)(C) if such specified rate per annum shall be
  higher than the Maximum Applicable Rate and Sufficient Clearing Bids do not
  exist.
 
    (B) A Sell Order by an Existing Holder shall constitute an irrevocable
  offer to sell:
 
    (1) the number of outstanding shares of AMPS specified in such Sell
  Order, or
 
    (2) such number or a lesser number of outstanding shares of AMPS to be
  determined as set forth in Paragraph 10(e)(ii)(C) if Sufficient Clearing
  Bids do not exist.
 
    (C) A Bid by a Potential Holder shall constitute an irrevocable offer to
  purchase:
 
    (1) the number of outstanding shares of AMPS specified in such Bid if the
  Applicable Rate determined on such Auction Date shall be higher than the
  rate per annum specified in such Bid; or
 
    (2) such number or a lesser number of outstanding shares of AMPS to be
  determined as set forth in Paragraph 10(e)(i)(E) if the Applicable Rate
  determined on such Auction Date shall be equal to the rate per annum
  specified therein.
 
PARAGRAPH 10(C) SUBMISSION OF ORDERS BY BROKER-DEALERS TO AUCTION AGENT.
 
  (i) Each Broker-Dealer shall submit in writing or through the Auction
Agent's Auction Processing System to the Auction Agent prior to the Submission
Deadline on each Auction Date all Orders obtained by such Broker-Dealer,
designating itself (unless otherwise permitted by the Fund) as an Existing
Holder in respect of shares subject to Orders submitted or deemed submitted to
it by Beneficial Owners and as a Potential Holder in respect of shares subject
to Orders submitted to it by Potential Beneficial Owners, and specifying with
respect to each Order:
 
    (A) the name of the Bidder placing such Order (which shall be the Broker-
  Dealer unless otherwise permitted by the Fund);
 
    (B) the aggregate number of outstanding shares of AMPS that are the
  subject of such Order;
 
    (C) to the extent that such Bidder is an Existing Holder
 
      (1) the number of outstanding shares, if any, of AMPS subject to any
    Hold Order placed by such Existing Holder;
 
      (2) the number of outstanding shares, if any, of AMPS subject to any
    Bid placed by such Existing Holder and the rate per annum specified in
    such Bid; and
 
                                      D-3
<PAGE>
 
      (3) the number of outstanding shares, if any, of AMPS subject to any
    Sell Order placed by such Existing Holder; and
 
    (D) to the extent such Bidder is a Potential Holder, the rate per annum
  specified in such Potential Holder's Bid.
 
  (ii) If any rate per annum specified in any Bid contains more than three
figures to the right of the decimal point, the Auction Agent shall round such
rate up to the next highest one-thousandth (.001) of 1%.
 
  (iii)  If an Order or Orders covering all of the outstanding shares of AMPS
held by an Existing Holder are not submitted to the Auction Agent prior to the
Submission Deadline, the Auction Agent shall deem a Hold Order (in the case of
an Auction relating to a Dividend Period which is not a Special Dividend
Period) and a Sell Order (in the case of an Auction relating to a Special
Dividend Period) to have been submitted on behalf of such Existing Holder
covering the number of outstanding shares of AMPS held by such Existing Holder
and not subject to Orders submitted to the Auction Agent.
 
  (iv) If one or more Orders on behalf of an Existing Holder covering in the
aggregate more than the number of outstanding shares of AMPS held by such
Existing Holder are submitted to the Auction Agent, such Orders shall be
considered valid as follows and in the following order of priority:
 
    (A) any Hold Order submitted on behalf of such Existing Holder shall be
  considered valid up to and including the number of outstanding shares of
  AMPS held by such Existing Holder; provided that if more than one Hold
  Order is submitted on behalf of such Existing Holder and the number of
  shares of AMPS subject to such Hold Orders exceeds the number of
  outstanding shares of AMPS held by such Existing Holder, the number of
  shares of AMPS subject to each of such Hold Orders shall be reduced pro
  rata so that such Hold Orders, in the aggregate, cover exactly the number
  of outstanding shares of AMPS held by such Existing Holder;
 
    (B) any Bids submitted on behalf of such Existing Holder shall be
  considered valid, in the ascending order of their respective rates per
  annum if more than one Bid is submitted on behalf of such Existing Holder,
  up to and including the excess of the number of outstanding shares of AMPS
  held by such Existing Holder over the number of shares of AMPS subject to
  any Hold Order referred to in Paragraph 10(c)(iv)(A) above (and if more
  than one Bid submitted on behalf of such Existing Holder specifies the same
  rate per annum and together they cover more than the remaining number of
  shares that can be the subject of valid Bids after application of Paragraph
  10(c)(iv)(A) above and of the foregoing portion of this Paragraph
  10(c)(iv)(B) to any Bid or Bids specifying a lower rate or rates per annum,
  the number of shares subject to each of such Bids shall be reduced pro rata
  so that such Bids, in the aggregate, cover exactly such remaining number of
  shares); and the number of shares, if any, subject to Bids not valid under
  this Paragraph 10(c)(iv)(B) shall be treated as the subject of a Bid by a
  Potential Holder; and
 
    (C) any Sell Order shall be considered valid up to and including the
  excess of the number of outstanding shares of AMPS held by such Existing
  Holder over the number of shares of AMPS subject to Hold Orders referred to
  in Paragraph 10(c)(iv)(A) and Bids referred to in Paragraph 10(c)(iv)(B);
  provided that if more than one Sell Order is submitted on behalf of any
  Existing Holder and the number of shares of AMPS subject to such Sell
  Orders is greater than such excess, the number of shares of AMPS subject to
  each of such Sell Orders shall be reduced pro rata so that such Sell
  Orders, in the aggregate, cover exactly the number of shares of AMPS equal
  to such excess.
 
  (v) If more than one Bid is submitted on behalf of any Potential Holder,
each Bid submitted shall be a separate Bid with the rate per annum and number
of shares of AMPS therein specified.
 
  (vi) Any Order submitted by a Beneficial Owner or a Potential Beneficial
Owner to its Broker-Dealer, or by a Broker-Dealer to the Auction Agent, prior
to the Submission Deadline on any Auction Date shall be irrevocable.
 
PARAGRAPH 10(D) DETERMINATION OF SUFFICIENT CLEARING BIDS, WINNING BID RATE
AND APPLICABLE RATE.
 
  (i) Not earlier than the Submission Deadline on each Auction Date, the
Auction Agent shall assemble all Orders submitted or deemed submitted to it by
the Broker-Dealers (each such Order as submitted or deemed
 
                                      D-4
<PAGE>
 
submitted by a Broker-Dealer being hereinafter referred to individually as a
"Submitted Hold Order," a "Submitted Bid" or a "Submitted Sell Order," as the
case may be, or as a "Submitted Order") and shall determine:
 
    (A) the excess of the total number of outstanding shares of AMPS over the
  number of outstanding shares of AMPS that are the subject of Submitted Hold
  Orders (such excess being hereinafter referred to as the "Available AMPS");
 
    (B) from the Submitted Orders whether the number of outstanding shares of
  AMPS that are the subject of Submitted Bids by Potential Holders specifying
  one or more rates per annum equal to or lower than the Maximum Applicable
  Rate exceeds or is equal to the sum of:
 
      (1) the number of outstanding shares of AMPS that are the subject of
    Submitted Bids by Existing Holders specifying one or more rates per
    annum higher than the Maximum Applicable Rate, and
 
      (2) the number of outstanding shares of AMPS that are subject to
    Submitted Sell Orders (if such excess or such equality exists (other
    than because the number of outstanding shares of AMPS in clauses (1)
    and (2) above are each zero because all of the outstanding shares of
    AMPS are the subject of Submitted Hold Orders), such Submitted Bids by
    Potential Holders hereinafter being referred to collectively as
    "Sufficient Clearing Bids"); and
 
    (C) if Sufficient Clearing Bids exist, the lowest rate per annum
  specified in the Submitted Bids (the "Winning Bid Rate") that if:
 
      (1) each Submitted Bid from Existing Holders specifying the Winning
    Bid Rate and all other submitted Bids from Existing Holders specifying
    lower rates per annum were rejected, thus entitling such Existing
    Holders to continue to hold the shares of AMPS that are the subject of
    such Submitted Bids, and
 
      (2) each Submitted Bid from Potential Holders specifying the Winning
    Bid Rate and all other Submitted Bids from Potential Holders specifying
    lower rates per annum were accepted, thus entitling the Potential
    Holders to purchase the shares of AMPS that are the subject of such
    Submitted Bids, would result in the number of shares subject to all
    Submitted Bids specifying the Winning Bid Rate or a lower rate per
    annum being at least equal to the Available AMPS.
 
  (ii) Promptly after the Auction Agent has made the determinations pursuant
to Paragraph 10(d)(i), the Auction Agent shall advise the Fund of the Maximum
Applicable Rate and, based on such determinations, the Applicable Rate for the
next succeeding Dividend Period as follows:
 
    (A) if Sufficient Clearing Bids exist, that the Applicable Rate for the
  next succeeding Dividend Period shall be equal to the Winning Bid Rate;
 
    (B) if Sufficient Clearing Bids do not exist (other than because all of
  the outstanding shares of AMPS are the subject of Submitted Hold Orders),
  that the Applicable Rate for the next succeeding Dividend Period shall be
  equal to the Maximum Applicable Rate; or
 
    (C) if all of the outstanding shares of AMPS are the subject of Submitted
  Hold Orders, that the Dividend Period next succeeding the Auction
  automatically shall be the same length as the immediately preceding
  Dividend Period and the Applicable Rate for the next succeeding Dividend
  Period shall be equal to 59% of the Reference Rate (or 90% of such rate if
  the Fund has provided notification to the Auction Agent prior to the
  Auction establishing the Applicable Rate for any dividend that net capital
  gains or other taxable income will be included in such dividend on shares
  of AMPS) on the date of the Auction.
 
PARAGRAPH 10(E) ACCEPTANCE AND REJECTION OF SUBMITTED BIDS AND SUBMITTED SELL
ORDERS AND ALLOCATION OF SHARES.
 
  Based on the determinations made pursuant to Paragraph 10(d)(i), the
Submitted Bids and Submitted Sell Orders shall be accepted or rejected and the
Auction Agent shall take such other action as set forth below:
 
                                      D-5
<PAGE>
 
  (i) If Sufficient Clearing Bids have been made, subject to the provisions of
Paragraph 10(e)(iii) and Paragraph 10(e)(iv), Submitted Bids and Submitted
Sell Orders shall be accepted or rejected in the following order of priority
and all other Submitted Bids shall be rejected:
 
    (A) the Submitted Sell Orders of Existing Holders shall be accepted and
  the Submitted Bid of each of the Existing Holders specifying any rate per
  annum that is higher than the Winning Bid Rate shall be accepted, thus
  requiring each such Existing Holder to sell the outstanding shares of AMPS
  that are the subject of such Submitted Sell Order or Submitted Bid;
 
    (B) the Submitted Bid of each of the Existing Holder specifying any rate
  per annum that is lower than the Winning Bid Rate shall be rejected, thus
  entitling each such Existing Holder to continue to hold the outstanding
  shares of AMPS that are the subject of such Submitted Bid;
 
    (C) the Submitted Bid of each of the Potential Holders specifying any
  rate per annum that is lower than the Winning Bid Rate shall be accepted;
 
    (D) the Submitted Bid of each of the Existing Holders specifying a rate
  per annum that is equal to the Winning Bid Rate shall be rejected, thus
  entitling each such Existing Holder to continue to hold the outstanding
  shares of AMPS that are the subject of such Submitted Bid, unless the
  number of outstanding shares of AMPS subject to all such Submitted Bids
  shall be greater than the number of outstanding shares of AMPS ("Remaining
  Shares") equal to the excess of the Available AMPS over the number of
  outstanding shares of AMPS subject to Submitted Bids described in Paragraph
  10(e)(i)(B) and Paragraph 10(e)(i)(C), in which event the Submitted Bids of
  each such Existing Holder shall be accepted, and each such Existing Holder
  shall be required to sell outstanding shares of AMPS, but only in an amount
  equal to the difference between (1) the number of outstanding shares of
  AMPS then held by such Existing Holder subject to such Submitted Bid and
  (2) the number of shares of AMPS obtained by multiplying (x) the number of
  Remaining Shares by (y) a fraction the numerator of which shall be the
  number of outstanding shares of AMPS held by such Existing Holder subject
  to such Submitted Bid and the denominator of which shall be the sum of the
  numbers of outstanding shares of AMPS subject to such Submitted Bids made
  by all such Existing Holders that specified a rate per annum equal to the
  Winning Bid Rate; and
 
    (E) the Submitted Bid of each of the Potential Holders specifying a rate
  per annum that is equal to the Winning Bid Rate shall be accepted but only
  in an amount equal to the number of outstanding shares of AMPS obtained by
  multiplying (x) the difference between the Available AMPS and the number of
  outstanding shares of AMPS subject to Submitted Bids described in Paragraph
  10(e)(i)(B), Paragraph 10(e)(i)(C) and Paragraph 10(e)(i)(D) by (y) a
  fraction the numerator of which shall be the number of outstanding shares
  of AMPS subject to such Submitted Bid and the denominator of which shall be
  the sum of the number of outstanding shares of AMPS subject to such
  Submitted Bids made by all such Potential Holders that specified rates per
  annum equal to the Winning Bid Rate.
 
  (ii) If Sufficient Clearing Bids have not been made (other than because all
of the outstanding shares of AMPS are subject to Submitted Hold Orders),
subject to the provisions of Paragraph 10(e)(iii), Submitted Orders shall be
accepted or rejected as follows in the following order of priority and all
other Submitted Bids shall be rejected:
 
    (A) the Submitted Bid of each Existing Holder specifying any rate per
  annum that is equal to or lower than the Maximum Applicable Rate shall be
  rejected, thus entitling such Existing Holder to continue to hold the
  outstanding shares of AMPS that are the subject of such Submitted Bid;
 
    (B) the Submitted Bid of each Potential Holder specifying any rate per
  annum that is equal to or lower than the Maximum Applicable Rate shall be
  accepted, thus requiring such Potential Holder to purchase the outstanding
  shares of AMPS that are the subject of such Submitted Bid; and
 
    (C) the Submitted Bids of each Existing Holder specifying any rate per
  annum that is higher than the Maximum Applicable Rate shall be accepted and
  the Submitted Sell Orders of each Existing Holder shall be accepted, in
  both cases only in an amount equal to the difference between (1) the number
  of outstanding shares of AMPS then held by such Existing Holder subject to
  such Submitted Bid or Submitted Sell Order
 
                                      D-6
<PAGE>
 
  and (2) the number of shares of AMPS obtained by multiplying (x) the
  difference between the Available AMPS and the aggregate number of
  outstanding shares of AMPS subject to Submitted Bids described in Paragraph
  10(e)(ii)(A) and Paragraph 10(e)(ii)(B) by (y) a fraction the numerator of
  which shall be the number of outstanding shares of AMPS held by such
  Existing Holder subject to such Submitted Bid or Submitted Sell Order and
  the denominator of which shall be the number of outstanding shares of AMPS
  subject to all such Submitted Bids and Submitted Sell Orders.
 
  (iii) If, as a result of the procedures described in Paragraph 10(e)(i) or
Paragraph 10(e)(ii), any Existing Holder would be entitled or required to
sell, or any Potential Holder would be entitled or required to purchase, a
fraction of a share of AMPS on any Auction Date, the Auction Agent shall, in
such manner as in its sole discretion it shall determine, round up or down the
number of shares of AMPS to be purchased or sold by any Existing Holder or
Potential Holder on such Auction Date so that each outstanding share of AMPS
purchased or sold by each Existing Holder or Potential Holder on such Auction
Date shall be a whole share of AMPS.
 
  (iv) If, as a result of the procedures described in Paragraph 10(e)(i), any
Potential Holder would be entitled or required to purchase less than a whole
share of AMPS on any Auction Date, the Auction Agent, in such manner as in its
sole discretion it shall determine, shall allocate shares of AMPS for purchase
among Potential Holders so that only whole shares of AMPS are purchased on
such Auction Date by any Potential Holder, even if such allocation results in
one or more of such Potential Holders not purchasing any shares of AMPS on
such Auction Date.
 
  (v) Based on the results of each Auction, the Auction Agent shall determine,
with respect to each Broker-Dealer that submitted Bids or Sell Orders on
behalf of Existing Holders or Potential Holders, the aggregate number of the
outstanding shares of AMPS to be purchased and the aggregate number of
outstanding shares of AMPS to be sold by such Potential Holders and Existing
Holders and, to the extent that such aggregate number of outstanding shares to
be purchased and such aggregate number of outstanding shares to be sold
differ, the Auction Agent shall determine to which other Broker-Dealer or
Broker-Dealers acting for one or more purchasers such Broker-Dealer shall
deliver, or from which other Broker-Dealer or Broker-Dealers acting for one or
more sellers such Broker-Dealer shall receive, as the case may be, outstanding
shares of AMPS.
 
PARAGRAPH 10(F) MISCELLANEOUS.
 
  The Fund may interpret the provisions of this Paragraph 10 to resolve any
inconsistency or ambiguity, remedy any formal defect or make any other change
or modification that does not substantially adversely affect the rights of
Beneficial Owners of AMPS. A Beneficial Owner or an Existing Holder (A) may
sell, transfer or otherwise dispose of shares of AMPS only pursuant to a Bid
or Sell Order in accordance with the procedures described in this Paragraph 10
or to or through a Broker-Dealer, provided that in the case of all transfers
other than pursuant to Auctions such Beneficial Owner or Existing Holder, its
Broker-Dealer, if applicable, or its Agent Member advises the Auction Agent of
such transfer and (B) except as otherwise required by law, shall have the
ownership of the shares of AMPS held by it maintained in book entry form by
the Securities Depository in the account of its Agent Member, which in turn
will maintain records of such Beneficial Owner's beneficial ownership. Neither
the Fund nor any Affiliate (other than Merrill Lynch, Pierce, Fenner & Smith
Incorporated) shall submit an Order in any Auction. Any Beneficial Owner that
is an Affiliate (other than Merrill Lynch, Pierce, Fenner & Smith
Incorporated) shall not sell, transfer or otherwise dispose of shares of AMPS
to any Person other than the Fund. All of the outstanding shares of AMPS of a
Series shall be represented by a single certificate registered in the name of
the nominee of the Securities Depository unless otherwise required by law or
unless there is no Securities Depository. If there is no Securities
Depository, at the Fund's option and upon its receipt of such documents as it
deems appropriate, any shares of AMPS may be registered in the Stock Register
in the name of the Beneficial Owner thereof and such Beneficial Owner
thereupon will be entitled to receive certificates therefor and required to
deliver certificates thereof or upon transfer or exchange thereof.
 
                                      D-7
<PAGE>
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
 NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY REPRE-
SENTATIONS NOT CONTAINED IN THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFOR-
MATION OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED.
THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFERING OF ANY SECURITIES OTHER THAN
THE REGISTERED SECURITIES TO WHICH IT RELATES OR AN OFFER TO ANY PERSON IN ANY
STATE OR JURISDICTION OF THE UNITED STATES OR ANY COUNTRY WHERE SUCH OFFER
WOULD BE UNLAWFUL.
 
                               ----------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
Prospectus Summary.........................................................   3
Risk Factors and Special Considerations....................................  11
The Fund...................................................................  13
Use of Proceeds............................................................  13
Capitalization.............................................................  13
Portfolio Composition......................................................  14
Investment Objective and Policies..........................................  14
Description of AMPS........................................................  32
Investment Restrictions....................................................  52
Directors and Officers.....................................................  53
Investment Advisory and Management Arrangements............................  55
Portfolio Transactions.....................................................  56
Taxes......................................................................  57
Net Asset Value............................................................  62
Description of Capital Stock...............................................  62
Custodian..................................................................  64
Underwriting...............................................................  64
Transfer Agent, Dividend Disbursing Agent and Registrar....................  65
Legal Opinions.............................................................  65
Experts....................................................................  65
Additional Information.....................................................  65
Independent Auditors' Report ..............................................  67
Statement of Assets, Liabilities and Capital...............................  68
Financial Statements (Unaudited)...........................................  68
Glossary...................................................................  69
Appendix A--Economic and Other Conditions in California.................... A-1
Appendix B--Ratings of Municipal Bonds..................................... B-1
Appendix C--Settlement Procedures.......................................... C-1
Appendix D--Auction Procedures............................................. D-1
</TABLE>
 
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                                   $
 
                MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.
 
                        AUCTION MARKET PREFERRED STOCK
 
                                  ["AMPS(R)"]
 
                                  SHARES, SERIES A
 
                                  SHARES, SERIES B
 
                               ----------------
                                  PROSPECTUS
                               ----------------
 
                              MERRILL LYNCH & CO.
 
                               OCTOBER   , 1998
 
             (R)Registered trademark of Merrill Lynch & Co., Inc.
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
                                    PART C
 
                               OTHER INFORMATION
 
ITEM 24. FINANCIAL STATEMENTS AND EXHIBITS.
 
  (1) Financial Statements
 
    Report of Independent Auditors
    Statement of Assets, Liabilities and Capital as of September   , 1998
    Schedule of Investments as of September   , 1998 (unaudited)
    Statement of Assets, Liabilities and Capital as of September   , 1998
    (unaudited)
 
  (2) Exhibits:
 
<TABLE>
     <C> <C> <S>
     (a) (1) -- Articles of Incorporation of the Registrant.(a)
         (2) -- Form of Articles Supplementary creating the Series A AMPS and
              Series B AMPS.
     (b)     -- By-Laws of the Registrant.(a)
     (c)     -- Not applicable.
     (d) (1) -- Portions of the Articles of Incorporation, By-Laws and the
              Articles Supplementary of the Registrant defining the rights of
              holders of shares of the Registrant.(b)
         (2) -- Form of specimen certificate for the AMPS of the Registrant.
     (e)     -- Form of Automatic Dividend Reinvestment Plan.(a)
     (f)     -- Not applicable.
     (g)     -- Form of Investment Advisory Agreement between the Registrant
              and Fund Asset Management, L.P.(a)
     (h) (1) -- Form of Purchase Agreement for the AMPS.
         (2) -- Merrill Lynch Standard Dealer Agreement.(a)
     (i)     -- Not applicable.
     (j)     -- Form of Custodian Contract between the Registrant and State
              Street Bank and Trust Company.
     (k) (1) -- Form of Transfer Agency, Dividend Disbursing Agency and
              Shareholder Servicing Agency Agreement between the Registrant and
              State Street Bank and Trust Company.
         (2) -- Form of Auction Agent Agreement between the Registrant and IBJ
              Schroder Bank & Trust Company.
         (3) -- Form of Broker-Dealer Agreement.
         (4) -- Form of Letter of Representations.
     (l)     -- Opinion and Consent of Brown & Wood LLP, counsel to the
              Registrant.*
     (m)     -- Not applicable.
     (n)     -- Consent of         , independent auditors for the Registrant.*
     (o)     -- Not applicable.
     (p)     -- Certificate of Fund Asset Management, L.P.(a)
     (q)     -- Not applicable.
     (r)     -- Financial Data Schedule.*
</TABLE>
- --------
(a) Incorporated by reference to the Registrant's registration statement on
    Form N-2, File No. 333-61963 (the "Common Stock Registration Statement").
(b) Reference is made to Article V, Article VI (sections 2, 3, 4, 5 and 6),
    Article VII, Article VIII, Article X, Article XI, Article XII and Article
    XIII of the Registrant's Articles of Incorporation, previously filed as
    Exhibit (a)(1) to the Common Stock Registration Statement; and to Article
    II, Article III (sections 1, 2, 3, 5 and 17), Article VI, Article VII,
    Article XII, Article XIII and Article XIV of the Registrant's By-Laws,
    previously filed as Exhibit (b) to the Common Stock Registration
    Statement. Reference is also made to the Form of Articles Supplementary
    filed hereto as Exhibit (a)(4).
*To be filed by amendment.
 
                                      C-1
<PAGE>
 
ITEM 25. MARKETING ARRANGEMENTS.
 
  See Exhibit (h).
 
ITEM 26. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
  The following table sets forth the estimated expenses to be incurred in
connection with the offering described in this Registration Statement:
 
<TABLE>
      <S>                                                                  <C>
      Registration fees................................................... $ *
      Printing............................................................   *
      Legal fees and expenses.............................................   *
      Accounting fees and expenses........................................   *
      Rating Agency fees..................................................   *
      Miscellaneous.......................................................   *
                                                                           ----
        Total............................................................. $ *
                                                                           ====
</TABLE>
     --------
     * To be provided by amendment.
 
ITEM 27. PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT.
 
  The information in the Prospectus under the captions "Investment Advisory
and Management Arrangements" and "Description of Capital Stock--Common Stock"
and in Note 1 to the Statement of Assets, Liabilities and Capital is
incorporated herein by reference.
 
ITEM 28. NUMBER OF HOLDERS OF SECURITIES.
 
<TABLE>
<CAPTION>
                                                                 NUMBER OF
                                                              RECORD HOLDERS
          TITLE OF CLASS                                   AT SEPTEMBER 25, 1998
          --------------                                   ---------------------
      <S>                                                  <C>
      Common Stock, $.10 par value........................            2
      Preferred Stock, $.10 par value.....................            0
</TABLE>
 
ITEM 29. INDEMNIFICATION.
 
  Section 2-418 of the General Corporation Law of the State of Maryland,
Article VI of the Registrant's Amended and Restated Articles of Incorporation,
filed as Exhibit (a)(2) to the Common Stock Registration Statement, Article VI
of the Registrant's By-Laws, filed as Exhibit (b) to the Common Stock
Registration Statement, and the Investment Advisory Agreement, filed as
Exhibit (g) to the Common Stock Registration Statement, provide for
indemnification.
 
  Insofar as indemnification for liabilities arising under the Securities Act
of 1933, as amended (the "1933 Act"), may be provided to directors, officers
and controlling persons of the Registrant, pursuant to the foregoing
provisions or otherwise, the Registrant has been advised that in the opinion
of the Securities and Exchange Commission, such indemnification is against
public policy as expressed in the 1933 Act and is, therefore, unenforceable.
In the event that a claim for indemnification against such liabilities (other
than the payment by the Registrant of expenses incurred or paid by a director,
officer or controlling person of the Registrant in connection with any
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities
being registered, the Registrant will, unless in the opinion of its counsel
the matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the 1933 Act and will be governed by the
final adjudication of such issue.
 
  Reference is made to Section 7 of the Purchase Agreement, a form of which is
filed as Exhibit (h)(1) hereto, for provisions relating to the indemnification
of the underwriter.
 
                                      C-2
<PAGE>
 
ITEM 30. BUSINESS AND OTHER CONNECTIONS OF THE INVESTMENT ADVISER.
 
  Fund Asset Management, L.P. (the "Investment Adviser"), an affiliate of MLAM
acts as investment adviser for the following open-end registered investment
companies: CBA Money Fund, CMA Government Securities Fund, CMA Money Fund, CMA
Multi-State Municipal Series Trust, CMA Tax-Exempt Fund, CMA Treasury Fund,
The Corporate Fund Accumulation Program, Inc., Financial Institutions Series
Trust, Merrill Lynch Basic Value Fund, Inc., Merrill Lynch California
Municipal Series Trust, Merrill Lynch Corporate Bond Fund, Inc., Merrill Lynch
Corporate High Yield Fund, Inc., Merrill Lynch Emerging Tigers Fund, Inc.,
Merrill Lynch Federal Securities Trust, Merrill Lynch Funds for Institutions
Series, Merrill Lynch Multi-State Limited Maturity Municipal Series Trust,
Merrill Lynch Multi-State Municipal Series Trust, Merrill Lynch Municipal Bond
Fund, Inc., Merrill Lynch Phoenix Fund, Inc., Merrill Lynch Special Value
Fund, Inc., Merrill Lynch World Income Fund, Inc., and The Municipal Fund
Accumulation Program, Inc., and for the following closed-end registered
investment companies: Apex Municipal Fund, Inc., Corporate High Yield Fund,
Inc., Corporate High Yield Fund II, Inc., Corporate High Yield Fund III, Inc.,
Debt Strategies Fund, Inc., Debt Strategies Fund II, Inc., Debt Strategies
Fund III, Inc., Income Opportunities Fund 1999, Inc., Income Opportunities
Fund 2000, Inc., Merrill Lynch Municipal Strategy Fund, Inc., MuniAssets Fund,
Inc., MuniEnhanced Fund, Inc., MuniHoldings Fund, Inc., MuniHoldings Fund II,
Inc., MuniHoldings California Insured Fund, Inc., MuniHoldings California
Insured Fund II, Inc., MuniHoldings Florida Insured Fund, MuniHoldings Florida
Insured Fund II, MuniHoldings Insured Fund, Inc., MuniHoldings New Jersey
Insured Fund, Inc., MuniHoldings New York Fund, Inc., MuniHoldings New York
Insured Fund, Inc., MuniInsured Fund, Inc., MuniVest Florida Fund, MuniVest
Fund, Inc., MuniVest Fund II, Inc., MuniVest Michigan Insured Fund, Inc.,
MuniVest New Jersey Fund, Inc., MuniVest Pennsylvania Insured Fund, MuniYield
Arizona Fund, Inc., MuniYield California Fund, Inc., MuniYield California
Insured Fund, Inc., MuniYield California Insured Fund II, Inc., MuniYield
Florida Fund, MuniYield Florida Insured Fund, MuniYield Fund, Inc., MuniYield
Insured Fund, Inc., MuniYield Michigan Fund, Inc., MuniYield Michigan Insured
Fund, Inc., MuniYield New Jersey Fund, Inc., MuniYield New Jersey Insured
Fund, Inc., MuniYield New York Insured Fund, Inc., MuniYield New York Insured
Fund II, Inc., MuniYield Pennsylvania Fund, MuniYield Quality Fund, Inc.,
MuniYield Quality Fund II, Inc., Senior High Income Portfolio, Inc., and
Worldwide DollarVest Fund, Inc.
 
  Merrill Lynch Asset Management, L.P. ("MLAM"), an affiliate of the
Investment Adviser, acts as the investment adviser for the following open-end
registered investment companies: Merrill Lynch Adjustable Rate Securities
Fund, Inc., Merrill Lynch Americas Income Fund, Inc., Merrill Lynch Asset
Builder Program, Inc., Merrill Lynch Asset Growth Fund, Inc., Merrill Lynch
Asset Income Fund, Inc., Merrill Lynch Capital Fund, Inc., Merrill Lynch
Convertible Fund, Inc., Merrill Lynch Developing Capital Markets Fund, Inc.,
Merrill Lynch Dragon Fund, Inc., Merrill Lynch EuroFund, Merrill Lynch
Fundamental Growth Fund, Inc., Merrill Lynch Fund For Tomorrow, Inc., Merrill
Lynch Global Bond Fund for Investment and Retirement, Merrill Lynch Global
Allocation Fund, Inc., Merrill Lynch Global Growth Fund, Inc., Merrill Lynch
Global Holdings, Merrill Lynch Global Resources Trust, Merrill Lynch Global
SmallCap Fund, Inc., Merrill Lynch Global Technology Fund, Inc., Merrill Lynch
Global Utility Fund, Inc., Merrill Lynch Global Value Fund, Inc., Merrill
Lynch Growth Fund, Merrill Lynch Healthcare Fund, Inc., Merrill Lynch
Intermediate Government Bond Fund, Merrill Lynch International Equity Fund,
Merrill Lynch Latin America Fund, Inc., Merrill Lynch Middle East/Africa Fund,
Inc., Merrill Lynch Municipal Series Trust, Merrill Lynch Pacific Fund, Inc.,
Merrill Lynch Ready Assets Trust, Merrill Lynch Real Estate Fund, Inc.,
Merrill Lynch Retirement Series Trust, Merrill Lynch Series Fund, Inc.,
Merrill Lynch Short-Term Global Income Fund, Inc., Merrill Lynch Strategic
Dividend Fund, Merrill Lynch Technology Fund, Inc., Merrill Lynch U.S.
Treasury Money Fund, Merrill Lynch U.S.A. Government Reserves, Merrill Lynch
Utility Income Fund, Inc., Merrill Lynch Variable Series Funds, Inc. and
Hotchkis and Wiley Funds (advised by Hotchkis and Wiley, a division of MLAM);
and for the following closed-end registered investment companies: Merrill
Lynch High Income Municipal Bond Fund, Inc. and Merrill Lynch Senior Floating
Rate Fund, Inc. MLAM also acts as sub-adviser to Merrill Lynch World Strategy
Portfolio and Merrill Lynch Basic Equity Portfolio, two investment portfolios
of EQ Advisors Trust.
 
  The address of each of these registered investment companies is P.O. Box
9011, Princeton, New Jersey 08543-9011, except that the address of Merrill
Lynch Funds for Institutions Series and Merrill Lynch
 
                                      C-3
<PAGE>
 
Intermediate Government Bond Fund is One Financial Center, 23rd Floor, Boston,
Massachusetts 02111-2665. The address of the Investment Adviser, MLAM,
Princeton Services, Inc. ("Princeton Services") and Princeton Administrators,
L.P. is also P.O. Box 9011, Princeton, New Jersey 08543-9011. The address of
Princeton Funds Distributor, Inc. ("PFD") and of Merrill Lynch Funds
Distributor ("MLFD") is P.O. Box 9081, Princeton, New Jersey 08543-9081.
The address of Merrill Lynch, Pierce, Fenner & Smith Incorporated ("Merrill
Lynch") and Merrill Lynch & Co., Inc. ("ML & Co.") is World Financial Center,
North Tower, 250 Vesey Street, New York, New York 10281-1201.
 
  Set forth below is a list of each executive officer and partner of the
Investment Adviser indicating each business, profession, vocation or
employment of a substantial nature in which each such person or entity has
been engaged for the past two years for his or her or its own account or in
the capacity of director, officer, employee, partner or trustee. In addition,
Mr. Zeikel is President, Mr. Richard is Treasurer and Mr. Glenn is Executive
Vice President of all or substantially all of the investment companies
described in the first two paragraphs of this Item 30 and also hold the same
positions with all or substantially all of the investment companies advised by
MLAM as they do with those advised by the Investment Adviser. Messrs.
Giordano, Harvey, Kirstein and Monagle are directors or officers of one or
more of such companies.
 
<TABLE>
<CAPTION>
                        POSITIONS WITH            OTHER SUBSTANTIAL BUSINESS, PROFESSION,
       NAME           INVESTMENT ADVISER                  VOCATION OR EMPLOYMENT
       ----           ------------------          ---------------------------------------
 <C>               <C>                      <S>
 ML & Co. .......  Limited Partner          Financial Services Holding Company; Limited
                                            Partner of FAM
 Princeton         General Partner          General Partner of MLAM
  Services.......
 Arthur Zeikel...  Chairman                 Chairman of MLAM; President of the Investment
                                            Adviser and MLAM from 1977 to 1997; Chairman and
                                            Director of Princeton Services; President of
                                            Princeton Services from 1993 to 1997; Executive
                                            Vice President of ML & Co.
 Jeffrey M.        President                President of MLAM; President and Director of
  Peek...........                           Princeton Services; Executive Vice President of ML
                                            & Co.
 Terry K. Glenn..  Executive Vice President Executive Vice President of MLAM; Executive Vice
                                            President and Director of Princeton Services;
                                            President and Director of PFD; Director of
                                            Financial Data Services, Inc.; President of
                                            Princeton Administrators, L.P.
 Linda L.          Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Federici.......                           President of Princeton Services
 Vincent R.        Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Giordano.......                           President of Princeton Services
 Elizabeth A.      Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Griffin........                           President of Princeton Services
 Norman R.         Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Harvey.........                           President of Princeton Services
 Michael J.        Senior Vice President    Senior Vice President and General Counsel of MLAM;
  Hennewinkel....   and General Counsel     Senior Vice President of the MLAM International
                                            Group
 Philip L.         Senior Vice President    Senior Vice President and Secretary of MLAM;
  Kirstein.......   and Secretary           Senior Vice President, General Counsel, Director
                                            and Secretary of Princeton Services
 Ronald M.         Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Kloss..........                           President of Princeton Services
 Debra Landsman-   Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Yaros..........                           President of Princeton Services; Vice President of
                                            PFD
 Stephen M. M.     Senior Vice President    Executive Vice President of Princeton
  Miller.........                           Administrators, L.P.; Senior Vice President of
                                            Princeton Services
 Joseph T.         Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Monagle, Jr. ..                           President of Princeton Services
 Michael L.        Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Quinn..........                           President of Princeton Services; Managing Director
                                            and First Vice President of Merrill Lynch from
                                            1989 to 1995
 Richard L.        Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Reller.........                           President of Princeton Services; Director of PFD
 Gerald M.         Senior Vice President    Senior Vice President and Treasurer of MLAM;
  Richard........   and Treasurer           Senior Vice President and Treasurer of Princeton
                                            Services; Vice President and Treasurer of PFD
 Gregory D.        Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Upah...........                           President of Princeton Services
 Ronald L.         Senior Vice President    Senior Vice President of MLAM; Senior Vice
  Welburn........                           President of Princeton Services
</TABLE>
 
                                      C-4
<PAGE>
 
ITEM 31. LOCATION OF ACCOUNT AND RECORDS.
 
  All accounts, books and other documents required to be maintained by Section
31(a) of the Investment Company Act of 1940, as amended, and the Rules
promulgated thereunder are maintained at the offices of the Registrant (800
Scudders Mill Road, Plainsboro, New Jersey 08536), its investment adviser (800
Scudders Mill Road, Plainsboro, New Jersey 08536), and its custodian and
transfer agent.
 
ITEM 32. MANAGEMENT SERVICES.
 
  Not applicable.
 
ITEM 33. UNDERTAKINGS.
 
  Registrant undertakes:
 
    (1) For the purpose of determining any liability under the Securities Act
  of 1933, the information omitted from the form of prospectus filed as a
  part of a registration statement in reliance upon Rule 430A under the
  Securities Act of 1933 and contained in the form of prospectus filed by the
  Registrant pursuant to Rule 497(h) under the Securities Act of 1933 shall
  be deemed to be part of the registration statement as of the time it was
  declared effective.
 
    (2) For the purpose of determining any liability under the Securities Act
  of 1933, each post-effective amendment that contains a form of prospectus
  shall be deemed to be a new registration statement relating to the
  securities offered therein, and the offering of such securities at that
  time shall be deemed to be the initial bona fide offering thereof.
 
                                      C-5
<PAGE>
 
                                  SIGNATURES
 
  Pursuant to the requirements of the Securities Act of 1933 and the
Investment Company Act of 1940, the Registrant has duly caused this
Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the Township of Plainsboro, and State of New
Jersey, on the 17th day of September, 1998.
 
                                          MuniHoldings California Insured Fund
                                           III, Inc.
                                               (Registrant)
 
                                                     /s/ Arthur Zeikel
                                          By
                                            -----------------------------------
                                                (ARTHUR ZEIKEL, PRESIDENT)
 
  Each person whose signature appears below hereby authorizes Arthur Zeikel,
Terry K. Glenn or Gerald M. Richard, or any of them, as attorney-in-fact, to
sign on his or her behalf, individually and in each capacity stated below, any
amendment to this Registration Statement (including post-effective amendments)
and to file the same, with all exhibits thereto, with the Securities and
Exchange Commission.
 
  Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed below by the following person in the
capacities and on the dates indicated.
 
             SIGNATURES                        TITLE                 DATE
 
          /s/ Arthur Zeikel            President (Principal     September 17,
- -------------------------------------   Executive Officer)           1998
           (ARTHUR ZEIKEL)              and Director
 
        /s/ Gerald M. Richard          Treasurer (Principal     September 17,
- -------------------------------------   Financial and                1998
         (GERALD M. RICHARD)            Accounting Officer)
 
        /s/ Ronald W. Forbes           Director                 September 17,
- -------------------------------------                                1998
         (RONALD W. FORBES)
 
      /s/ Cynthia A. Montgomery        Director                 September 17,
- -------------------------------------                                1998
       (CYNTHIA A. MONTGOMERY)
 
        /s/ Charles C. Reilly          Director                 September 17,
- -------------------------------------                                1998
         (CHARLES C. REILLY)
 
          /s/ Kevin A. Ryan            Director                 September 17,
- -------------------------------------                                1998
           (KEVIN A. RYAN)
 
         /s/ Richard R. West           Director                 September 17,
- -------------------------------------                                1998
          (RICHARD R. WEST)
 
 
                                      C-6
<PAGE>
 
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
 EXHIBITS                       DESCRIPTION
 --------                       -----------
 <C>      <S>                                                       <C>
  (a)(2)  Form of Articles Supplementary
  (d)(2)  Form of Specimen Certificate for AMPS
  (h)(1)  Form of Purchase Agreement
  (j)     Form of Custodian Contract
  (k)(1)  Form of Transfer Agency, Dividend Disbursing Agency and
          Shareholder Servicing Agency Agreement
  (k)(2)  Form of Auction Agency Agreement
  (k)(3)  Form of Broker-Dealer Agreement
  (k)(4)  Form of Letter of Representations
</TABLE>

<PAGE>
 
                                                                EXHIBIT 99(a)(2)

                MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.

                 Articles Supplementary creating two series of

                       Auction Market Preferred Stock(R)


     MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC., a Maryland corporation
having its principal Maryland office in the City of Baltimore (the
"Corporation"), certifies to the State Department of Assessments and Taxation of
Maryland that:

     FIRST:  Pursuant to authority expressly vested in the Board of Directors of
the Corporation by article fifth of its Charter, the Board of Directors has
reclassified ______ authorized and unissued shares of common stock of the
Corporation as preferred stock of the Corporation and has authorized the
issuance of two series of preferred stock, par value $.10 per share, liquidation
preference $25,000 per share plus an amount equal to accumulated but unpaid
dividends (whether or not earned or declared) thereon, to be designated
respectively:  Auction Market Preferred Stock, Series A; and Auction Market
Preferred Stock, Series B.

     SECOND:  The preferences, voting powers, restrictions, limitations as to
dividends, qualifications, and terms and conditions of redemption, of the shares
of each such series of preferred stock are as follows:


_____________________

(R)  Registered trademark of Merrill Lynch & Co., Inc.
<PAGE>
 
                                  DESIGNATION

     Series A:  A series of ______ shares of preferred stock, par value $.10 per
share, liquidation preference $25,000 per share plus an amount equal to
accumulated but unpaid dividends (whether or not earned or declared) thereon, is
hereby designated "Auction Market Preferred Stock, Series A."  Each share of
Auction Market Preferred Stock, Series A (sometimes referred to herein as
"Series A AMPS") shall be issued on a date to be determined by the Board of
Directors of the Corporation or pursuant to their delegated authority; have an
Initial Dividend Rate and an Initial Dividend Payment Date as shall be
determined in advance of the issuance thereof by the Board of Directors of the
Corporation or pursuant to their delegated authority; and have such other
preferences, voting powers, limitations as to dividends, qualifications and
terms and conditions of redemption as are set forth in these Articles
Supplementary.  The Auction Market Preferred Stock, Series A shall constitute a
separate series of preferred stock of the Corporation, and each share of Auction
Market Preferred Stock, Series A shall be identical.

     Series B:  A series of ________ shares of preferred stock, par value $.10
per share, liquidation preference $25,000 per share plus an amount equal to
accumulated but unpaid dividends (whether or not earned or declared) thereon, is
hereby designated "Auction Market Preferred Stock, Series B."  Each share of
Auction Market Preferred Stock, Series B (sometimes referred to herein as
"Series B AMPS") shall be issued on a date to be determined by the Board of
Directors of the Corporation or pursuant to their delegated authority; have an
Initial Dividend Rate and an Initial Dividend Payment Date as shall be
determined in advance of the issuance thereof by the Board of Directors of the
Corporation or pursuant to their delegated authority; and have such other
preferences, voting powers, limitations as to dividends, qualifications and
terms

                                       2
<PAGE>
 
and conditions of redemption as are set forth in these Articles Supplementary.
The Auction Market Preferred Stock, Series B shall constitute a separate series
of preferred stock of the Corporation, and each share of Auction Market
Preferred Stock, Series B shall be identical.

     1.  Definitions.  (a)  Unless the context or use indicates another or
         -----------                                                      
different meaning or intent, in these Articles Supplementary the following terms
have the following meanings, whether used in the singular or plural:

          "`AA' Composite Commercial Paper Rate," on any date of determination,
means (i) the Interest Equivalent of the rate on commercial paper placed on
behalf of issuers whose corporate bonds are rated "AA" by S&P or "Aa" by Moody's
or the equivalent of such rating by another nationally recognized rating agency,
as such rate is made available on a discount basis or otherwise by the Federal
Reserve Bank of New York for the Business Day immediately preceding such date,
or (ii) in the event that the Federal Reserve Bank of New York does not make
available such a rate, then the arithmetic average of the Interest Equivalent of
the rate on commercial paper placed on behalf of such issuers, as quoted on a
discount basis or otherwise by Merrill Lynch, Pierce, Fenner & Smith
Incorporated or its successors that are Commercial Paper Dealers, to the Auction
Agent for the close of business on the Business Day immediately preceding such
date.  If one of the Commercial Paper Dealers does not quote a rate required to
determine the "AA" Composite Commercial Paper Rate, the "AA" Composite
Commercial Paper Rate will be determined on the basis of the quotation or
quotations furnished by any Substitute Commercial Paper Dealer or Substitute
Commercial Paper Dealers selected by the Corporation to provide such rate or
rates not being supplied by the Commercial Paper Dealer. If the number of
Dividend Period days shall be (i) 7 or more but fewer than 49 days, such rate
shall

                                       3
<PAGE>
 
be the Interest Equivalent of the 30-day rate on such commercial paper; (ii) 49
or more but fewer than 70 days, such rate shall be the Interest Equivalent of
the 60-day rate on such commercial paper; (iii) 70 or more days but fewer than
85 days, such rate shall be the arithmetic average of the Interest Equivalent on
the 60-day and 90-day rates on such commercial paper; (iv) 85 or more days but
fewer than 99 days, such rate shall be the Interest Equivalent of the 90-day
rate on such commercial paper; (v) 99 or more days but fewer than 120 days, such
rate shall be the arithmetic average of the Interest Equivalent of the 90-day
and 120-day rates on such commercial paper; (vi) 120 or more days but fewer than
141 days, such rate shall be the Interest Equivalent of the 120-day rate on such
commercial paper; (vii) 141 or more days but fewer than 162 days, such rate
shall be the arithmetic average of the Interest Equivalent of the 120-day and
180-day rates on such commercial paper; and (viii) 162 or more days but fewer
than 183 days, such rate shall be the Interest Equivalent of the 180-day rate on
such commercial paper.

     "Accountant's Confirmation" has the meaning set forth in paragraph 7(c) of
these Articles Supplementary.

     "Additional Dividend" has the meaning set forth in paragraph 2(e) of these
Articles Supplementary.

     "Adviser" means the Corporation's investment adviser which initially shall
be Fund Asset Management, L.P.

     "Affiliate" means any Person, other than Merrill Lynch, Pierce, Fenner &
Smith Incorporated or its successors, known to the Auction Agent to be
controlled by, in control of, or under common control with, the Corporation.

                                       4
<PAGE>
 
     "Agent Member" means a member of the Securities Depository that will act on
behalf of a Beneficial Owner of one or more shares of AMPS or a Potential
Beneficial Owner.

     "AMPS" means, as the case may be, the Auction Market Preferred Stock,
Series A; or the Auction Market Preferred Stock, Series B.

     "AMPS Basic Maintenance Amount," as of any Valuation Date, means the dollar
amount equal to (i) the sum of (A) the product of the number of shares of AMPS
of each series and Other AMPS Outstanding on such Valuation Date multiplied by
the sum of (a)   $25,000 and (b) any applicable redemption premium attributable
to the designation of a Premium Call Period; (B) the aggregate amount of cash
dividends (whether or not earned or declared) that will have accumulated for
each share of AMPS and Other AMPS Outstanding, in each case, to (but not
including) the end of the current Dividend Period for each series of AMPS that
follows such Valuation Date in the event the then current Dividend Period will
end within 49 calendar days of such Valuation Date or through the 49th day after
such Valuation Date in the event the then current Dividend Period for each
series of AMPS will not end within 49 calendar days of such Valuation Date; (C)
in the event the then current Dividend Period will end within 49 calendar days
of such Valuation Date, the aggregate amount of cash dividends that would
accumulate at the Maximum Applicable Rate applicable to a Dividend Period of 28
or fewer days on any shares of AMPS and Other AMPS Outstanding from the end of
such Dividend Period through the 49th day after such Valuation Date, multiplied
by the larger of the Moody's Volatility Factor and the S&P Volatility Factor,
determined from time to time by Moody's and S&P, respectively (except that if
such Valuation Date occurs during a Non-Payment Period, the cash dividend for
purposes of calculation would accumulate at the then current Non-Payment Period
Rate); (D) the amount

                                       5
<PAGE>
 
of anticipated expenses of the Corporation for the 90 days subsequent to such
Valuation Date (including any premiums payable with respect to a Policy); (E)
the amount of the Corporation's Maximum Potential Additional Dividend Liability
as of such Valuation Date; and (F) any current liabilities as of such Valuation
Date to the extent not reflected in any of (i)(A) through (i)(E) (including,
without limitation, and immediately upon determination, any amounts due and
payable by the Corporation pursuant to repurchase agreements and any amounts
payable for California Municipal Bonds or Municipal Bonds purchased as of such
Valuation Date) less (ii) either (A) the Discounted Value of any of the
Corporation's assets, or (B) the face value of any of the Corporation's assets
if such assets mature prior to or on the date of redemption of AMPS or payment
of a liability and are either securities issued or guaranteed by the United
States Government or Deposit Securities, in both cases irrevocably deposited by
the Corporation for the payment of the amount needed to redeem shares of AMPS
subject to redemption or to satisfy any of (i)(B) through (i)(F). For Moody's
and S&P, the Corporation shall include as a liability an amount calculated semi-
annually equal to 150% of the estimated cost of obtaining other insurance
guaranteeing the timely payment of interest on a Moody's Eligible Asset or S&P
Eligible Asset and principal thereof to maturity with respect to Moody's
Eligible Assets and S&P Eligible Assets that (i) are covered by a Policy which
provides the Corporation with the option to obtain such other insurance and (ii)
are discounted by a Moody's Discount Factor or a S&P Discount Factor, as the
case may be, determined by reference to the insurance claims-paying ability
rating of the issuer of such Policy.

     "AMPS Basic Maintenance Cure Date," with respect to the failure by the
Corporation to satisfy the AMPS Basic Maintenance Amount (as required by
paragraph 7(a) of these Articles 

                                       6
<PAGE>
 
Supplementary) as of a given Valuation Date, means the sixth Business Day
following such Valuation Date.

     "AMPS Basic Maintenance Report" means a report signed by any of the
President, Treasurer, any Senior Vice President or any Vice President of the
Corporation which sets forth, as of the related Valuation Date, the assets of
the Corporation, the Market Value and the Discounted Value thereof (seriatim and
in aggregate), and the AMPS Basic Maintenance Amount.

     "Anticipation Notes" shall mean the following California Municipal Bonds:
revenue anticipation notes, tax anticipation notes, tax and revenue anticipation
notes, grant anticipation notes and bond anticipation notes.

     "Applicable Percentage" has the meaning set forth in paragraph 10(a)(vii)
of these Articles Supplementary.

     "Applicable Rate" means the rate per annum at which cash dividends are
payable on the AMPS or Other AMPS, as the case may be, for any Dividend Period.

     "Auction" means a periodic operation of the Auction Procedures.

     "Auction Agent" means IBJ Schroder Bank & Trust Company unless and until
another commercial bank, trust company or other financial institution appointed
by a resolution of the Board of Directors of the Corporation or a duly
authorized committee thereof enters into an agreement with the Corporation to
follow the Auction Procedures for the purpose of determining 

                                       7
<PAGE>
 
the Applicable Rate and to act as transfer agent, registrar, dividend disbursing
agent and redemption agent for the AMPS and Other AMPS.

     "Auction Procedures" means the procedures for conducting Auctions set forth
in paragraph 10 of these Articles Supplementary.

     "Beneficial Owner" means a customer of a Broker-Dealer who is listed on the
records of that Broker-Dealer (or, if applicable, the Auction Agent) as a holder
of shares of AMPS or a Broker-Dealer that holds AMPS for its own account.

     "Broker-Dealer" means any broker-dealer, or other entity permitted by law
to perform the functions required of a Broker-Dealer in paragraph 10 of these
Articles Supplementary, that has been selected by the Corporation and has
entered into a Broker-Dealer Agreement with the Auction Agent that remains
effective.

     "Broker-Dealer Agreement" means an agreement between the Auction Agent and
a Broker-Dealer pursuant to which such Broker-Dealer agrees to follow the
procedures specified in paragraph 10 of these Articles Supplementary.

     "Business Day" means a day on which the New York Stock Exchange, Inc. is
open for trading and which is not a Saturday, Sunday or other day on which banks
in The City of New York are authorized or obligated by law to close.

     "California Municipal Bonds" means Municipal Bonds issued by or on behalf
of the State of California, its political subdivisions, agencies and
instrumentalities and by other qualifying 

                                       8
<PAGE>
 
issuers that pay interest which, in the opinion of bond counsel to the issuer,
is exempt from Federal and California income taxes, and includes Inverse
Floaters.

     "Charter" means the Articles of Incorporation, as amended and supplemented
(including these Articles Supplementary), of the Corporation on file in the
State Department of Assessments and Taxation of Maryland.

     "Code" means the Internal Revenue Code of 1986, as amended.

     "Commercial Paper Dealers" means Merrill Lynch, Pierce,

Fenner & Smith Incorporated and such other commercial paper dealer or dealers as
the Corporation may from time to time appoint, or, in lieu of any thereof, their
respective affiliates or successors.

     "Common Stock" means the common stock, par value $.10 per share, of the
Corporation.

     "Corporation" means MuniHoldings California Insured Fund III, Inc., a
Maryland corporation.

     "Date of Original Issue" means, with respect to any share of AMPS or Other
AMPS, the date on which the Corporation originally issues such share.

     "Deposit Securities" means cash and California Municipal Bonds and
Municipal Bonds rated at least A2 (having a remaining maturity of 12 months or
less), P-1, VMIG-1 or MIG-1 by Moody's or A (having a remaining maturity of 12
months or less), A-1+ or SP-1+ by S&P.

                                       9
<PAGE>
 
     "Discounted Value" means (i) with respect to an S&P Eligible Asset, the
quotient of the Market Value thereof divided by the applicable S&P Discount
Factor and (ii) with respect to a Moody's Eligible Asset, the lower of par and
the quotient of the Market Value thereof divided by the applicable Moody's
Discount Factor.

     "Dividend Payment Date," with respect to AMPS, has the meaning set forth in
paragraph 2(b)(i) of these Articles Supplementary and, with respect to Other
AMPS, has the equivalent meaning.

     "Dividend Period" means the Initial Dividend Period, any 7-Day Dividend
Period and any Special Dividend Period.

     "Existing Holder" means a Broker-Dealer or any such other Person as may be
permitted by the Corporation that is listed as the holder of record of shares of
AMPS in the Stock Books.

     "Fitch"  means Fitch IBCA, Inc. or its successors.

     "Forward Commitment" has the meaning set forth in paragraph 8(c) of these
Articles Supplementary.

     "Holder" means a Person identified as a holder of record of shares of AMPS
in the Stock Register.

     "Independent Accountant" means a nationally recognized accountant, or firm
of accountants, that is, with respect to the Corporation, an independent public
accountant or firm of independent public accountants under the Securities Act of
1933, as amended.

                                       10
<PAGE>
 
     "Initial Dividend Payment Date" means the Initial Dividend Payment Date as
determined by the Board of Directors of the Corporation with respect to each
series of AMPS or other AMPS, as the case may be.

     "Initial Dividend Period," with respect to each series of AMPS, has the
meaning set forth in paragraph 2(c)(i) of these Articles Supplementary and, with
respect to Other AMPS, has the equivalent meaning.

     "Initial Dividend Rate," with respect to each series of AMPS, means the
rate per annum applicable to the Initial Dividend Period for such series of AMPS
and, with respect to Other AMPS, has the equivalent meaning.

     "Initial Margin" means the amount of cash or securities deposited with a
broker as a margin payment at the time of purchase or sale of a futures
contract.

     "Interest Equivalent" means a yield on a 360-day basis of a discount basis
security which is equal to the yield on an equivalent interest-bearing security.

     "Inverse Floaters" means trust certificates or other instruments evidencing
interests in one or more California Municipal Bonds that are S&P Eligible Assets
the interest rates on which are adjusted at short term intervals on a basis that
is inverse to the simultaneous readjustment of the interest rates on
corresponding floating rate trust certificates or other instruments issued by
the same issuer, provided that the ratio of the aggregate dollar amount of
floating rate instruments to inverse floating rate instruments issued by the
same issuer does not exceed one to one at their time of original issuance.

                                       11
<PAGE>
 
     "Long Term Dividend Period" means a Special Dividend Period consisting of a
specified period of one whole year or more but not greater than five years.

     "Mandatory Redemption Price" means $25,000 per share of AMPS plus an amount
equal to accumulated but unpaid dividends (whether or not earned or declared) to
the date fixed for redemption and excluding Additional Dividends.

     "Marginal Tax Rate" means the maximum marginal regular Federal individual
income tax rate applicable to ordinary income or the maximum marginal regular
Federal corporate income tax rate, whichever is greater.

     "Market Value" of any asset of the Corporation shall be the market value
thereof determined by the Pricing Service.  Market Value of any asset shall
include any interest accrued thereon.  The Pricing Service shall value portfolio
securities at the quoted bid prices or the mean between the quoted bid and asked
price or the yield equivalent when quotations are not readily available.
Securities for which quotations are not readily available shall be valued at
fair value as determined by the Pricing Service using methods which include
consideration of: yields or prices of municipal bonds of comparable quality,
type of issue, coupon, maturity and rating; indications as to value from
dealers; and general market conditions. The Pricing Service may employ
electronic data processing techniques and/or a matrix system to determine
valuations. In the event the Pricing Service is unable to value a security, the
security shall be valued at the lower of two dealer bids obtained by the
Corporation from dealers who are members of the National Association of
Securities Dealers, Inc. and who make a market in the security, at least one of
which shall be in writing. Futures contracts and options are valued at closing
prices for

                                       12
<PAGE>
 
such instruments established by the exchange or board of trade on which they are
traded, or if market quotations are not readily available, are valued at fair
value on a consistent basis using methods determined in good faith by the Board
of Directors.

     "Maximum Applicable Rate," with respect to AMPS, has the meaning set forth
in paragraph 10(a)(vii) of these Articles Supplementary and, with respect to
Other AMPS, has the equivalent meaning.

     "Maximum Potential Additional Dividend Liability," as of any Valuation
Date, means the aggregate amount of Additional Dividends that would be due if
the Corporation were to make Retroactive Taxable Allocations, with respect to
any fiscal year, estimated based upon dividends paid and the amount of
undistributed realized net capital gains and other taxable income earned by the
Corporation, as of the end of the calendar month immediately preceding such
Valuation Date and assuming such Additional Dividends are fully taxable.

     "Moody's" means Moody's Investors Service, Inc. or its successors.

     "Moody's Discount Factor" means, for purposes of determining the Discounted
Value of any California Municipal Bond or Municipal Bond which constitutes a
Moody's Eligible Asset, the percentage determined by reference to (a)(i) the
rating by Moody's or S&P on such Bond or (ii) in the event the Moody's Eligible
Asset is insured under a Policy and the terms of the Policy permit the
Corporation, at its option, to obtain other insurance guaranteeing the timely
payment of 

                                       13
<PAGE>
 
interest on such Moody's Eligible Asset and principal thereof to maturity, the
Moody's insurance claims-paying ability rating of the issuer of the Policy or
(iii) in the event the Moody's Eligible Asset is insured under an insurance
policy which guarantees the timely payment of interest on such Moody's Eligible
Asset and principal thereof to maturity, the Moody's insurance claims-paying
ability rating of the issuer of the insurance policy (provided that for purposes
of clauses (ii) and (iii) if the insurance claims-paying ability of an issuer of
a Policy or insurance policy is not rated by Moody's but is rated by S&P, such
issuer shall be deemed to have a Moody's insurance claims-paying ability rating
which is two full categories lower than the S&P insurance claims-paying ability
rating) and (b) the Moody's Exposure Period, in accordance with the table set
forth below:

<TABLE>
<CAPTION>
                                                     Rating Category
                                                    -----------------
Moody's Exposure Period           Aaa*  Aa*   A*    Baa*    Other**    VMIG-1***   SP-1+***
- -------------------------------  -----  ----  ----  ------  ---------  ----------  ---------
<S>                              <C>    <C>   <C>   <C>     <C>        <C>         <C>
7 weeks or less................   151%  159%  168%  202%    229%       136%        148%
8 weeks or less but               
greater than seven weeks.......   154   164   173   205     235        137         149
9 weeks or less but               
greater than eight weeks.......   158   169   179   209     242        138         150 
</TABLE>

- ---------------
*     Moody's rating.

**    California Municipal Bonds and Municipal Bonds not rated by Moody's but
      rated BBB or BBB+ by S&P.

***   California Municipal Bonds and Municipal Bonds rated MIG-1, VMIG-1 or P-1
      or, if not rated by Moody's, rated SP-1+ or A-1+ by S&P which do not
      mature or have a demand feature at par exercisable within the Moody's
      Exposure Period and which do not have a long-term rating. For the purposes
      of the definition of Moody's Eligible Assets, these securities will have
      an assumed rating of "A" by Moody's.

; provided, however, in the event a Moody's Discount Factor applicable to a
Moody's Eligible Asset is determined by reference to an insurance claims-paying
ability rating in accordance with clause (a)(ii) or (a)(iii), such Moody's
Discount Factor shall be increased by an amount equal to 50% of the difference
between (a) the percentage set forth in the foregoing table under the applicable
rating category and (b) the percentage set forth in the foregoing table under
the rating category which is one category lower than the applicable rating
category.

     Notwithstanding the foregoing, (i) no Moody's Discount Factor will be
applied to short-term California Municipal Bonds and short-term Municipal Bonds,
so long as such 

                                       14
<PAGE>
 
California Municipal Bonds and Municipal Bonds are rated at least MIG-1, VMIG-1
or P-1 by Moody's and mature or have a demand feature at par exercisable within
the Moody's Exposure Period, and the Moody's Discount Factor for such Bonds will
be 125% if such Bonds are not rated by Moody's but are rated A-1+ or SP-1+ or AA
by S&P and mature or have a demand feature at par exercisable within the Moody's
Exposure Period, and (ii) no Moody's Discount Factor will be applied to cash or
to Receivables for California Municipal Bonds or Municipal Bonds Sold.
"Receivables for California Municipal Bonds or Municipal Bonds Sold," for
purposes of calculating Moody's Eligible Assets as of any Valuation Date, means
no more than the aggregate of the following: (i) the book value of receivables
for California Municipal Bonds or Municipal Bonds sold as of or prior to such
Valuation Date if such receivables are due within five Business Days of such
Valuation Date, and if the trades which generated such receivables are (x)
settled through clearing house firms with respect to which the Corporation has
received prior written authorization from Moody's or (y) with counterparties
having a Moody's long-term debt rating of at least Baa3; and (ii) the Moody's
Discounted Value of California Municipal Bonds or Municipal Bonds sold as of or
prior to such Valuation Date which generated receivables, if such receivables
are due within five Business Days of such Valuation Date but do not comply with
either of conditions (x) or (y) of the preceding clause (i).

     "Moody's Eligible Asset" means cash, Receivables for California Municipal
Bonds or Municipal Bonds Sold, a California Municipal Bond or a Municipal Bond
that (i) pays interest in cash, (ii) is publicly rated Baa or higher by Moody's
or, if not rated by Moody's but rated by S&P, is rated at least BBB by S&P
(provided that, for purposes of determining the Moody's Discount Factor
applicable to any such S&P-rated California Municipal Bond or S&P-rated

                                       15
<PAGE>
 
Municipal Bond, such California Municipal Bond or Municipal Bond (excluding any
short-term California Municipal Bond or Municipal Bond) will be deemed to have a
Moody's rating which is one full rating category lower than its S&P rating),
(iii) does not have its Moody's rating suspended by Moody's; and (iv) is part of
an issue of California Municipal Bonds or Municipal Bonds of at least
$10,000,000.  In addition, California Municipal Bonds and Municipal Bonds in the
Corporation's portfolio must be within the following diversification
requirements in order to be included within Moody's Eligible Assets:
<TABLE>
<CAPTION>
                   Minimum           Maximum               Maximum                    Maximum                  Maximum
                  Issue Size       Underlying             Issue Type                  County              State or Territory
Rating           ($ Millions)    Obligor (%)(1)     Concentration(%)(1)(3)    Concentration(%)(1)(4)     Concentration (1)(5)
- -------          ------------    ---------------    ----------------------    ----------------------    ----------------------
<S>                <C>              <C>                  <C>                       <C>                       <C>
Aaa........          10               100                   100                        100                       100
Aa.........          10                20                    60                         60                        60
A..........          10                10                    40                         40                        40
Baa........          10                 6                    20                         20                        20
Other(2)...          10                 4                    12                         12                        12
</TABLE>

- -----------------
(1)  The referenced percentages represent maximum cumulative totals for the
     related rating category and each lower rating category.
(2)  California Municipal Bonds and Municipal Bonds not rated by Moody's but
     rated BBB or BBB+ by S&P.
(3)  Does not apply to general obligation bonds.
(4)  Applicable to general obligation bonds only.
(5)  Does not apply to California Municipal Bonds. Territorial bonds (other than
     those issued by Puerto Rico and counted collectively) are each limited to
     10% of Moody's Eligible Assets. For diversification purposes, Puerto Rico
     will be treated as a state.

                                       16
<PAGE>
 
For purposes of the maximum underlying obligor requirement described above, any
California Municipal Bond or Municipal Bond backed by the guaranty, letter of
credit or insurance issued by a third party will be deemed to be issued by such
third party if the issuance of such third party credit is the sole determinant
of the rating on such Bond.  For purposes of the issue type concentration
requirement described above, California Municipal Bonds and Municipal Bonds will
be classified within one of the following categories:  health care issues
(teaching and non-teaching hospitals, public and private), housing issues
(single- and multi-family), educational facilities issues (public and private
schools), student loan issues, resource recovery issues, transportation issues
(mass transit, airport and highway bonds), industrial revenue/pollution control
bond issues, utility issues (including water, sewer and electricity), general
obligation issues, lease obligations/certificates of participation, escrowed
bonds and other issues ("Other Issues") not falling within one of the
aforementioned categories (includes special obligations to crossover, excise and
sales tax revenue, recreation revenue, special assessment and telephone revenue
bonds).  In no event shall (a) more than 10% of Moody's Eligible Assets consist
of student loan issues, (b) more than 10% of Moody's Eligible Assets consist of
resource recovery issues or (c) more than 10% of Moody's Eligible Assets consist
of Other Issues.

     When the Corporation sells a California Municipal Bond or Municipal Bond
and agrees to repurchase it at a future date, the Discounted Value of such Bond
will constitute a Moody's Eligible Asset and the amount the Corporation is
required to pay upon repurchase of such Bond will count as a liability for
purposes of calculating the AMPS Basic Maintenance Amount.  When the Corporation
purchases a California Municipal Bond or Municipal Bond and agrees to sell it at
a future date to another party, cash receivable by the Corporation thereby will
constitute

                                       17
<PAGE>
 
a Moody's Eligible Asset if the long-term debt of such other party is rated at
least A2 by Moody's and such agreement has a term of 30 days or less; otherwise
the Discounted Value of such Bond will constitute a Moody's Eligible Asset.

     Notwithstanding the foregoing, an asset will not be considered a Moody's
Eligible Asset if it is (i) held in a margin account, (ii) subject to any
material lien, mortgage, pledge, security interest or security agreement of any
kind, (iii) held for the purchase of a security pursuant to a Forward Commitment
or (iv) irrevocably deposited by the Corporation for the payment of dividends or
redemption.

     "Moody's Exposure Period" means a period that is the same length or longer
than the number of days used in calculating the cash dividend component of the
AMPS Basic Maintenance Amount and shall initially be the period commencing on
and including a given Valuation Date and ending 48 days thereafter.

     "Moody's Hedging Transactions" has the meaning set forth in paragraph 8(b)
of these Articles Supplementary.

     "Moody's Volatility Factor" means 272% as long as there has been no
increase enacted to the Marginal Tax Rate.  If such an increase is enacted but
not yet implemented, the Moody's Volatility Factor shall be as follows:

                                       18
<PAGE>
 
         % Change in Marginal                            Moody's Volatility
               Tax Rate                                        Factor
           ------------------                             --------------- 

      less than or equal to 5%                                  292%
      greater than  5% but less than or equal to 10%            313%
      greater than 10% but less than or equal to 15%            338%
      greater than 15% but less than or equal to 20%            364%
      greater than 20% but less than or equal to 25%            396%
      greater than 25% but less than or equal to 30%            432%
      greater than 30% but less than or equal to 35%            472%
      greater than 35% but less than or equal to 40%            520% 

Notwithstanding the foregoing, the Moody's Volatility Factor may mean such other
potential dividend rate increase factor as Moody's advises the Corporation in
writing is applicable.

     "Municipal Bonds" means "Municipal Bonds" as defined in the Corporation's
Registration Statement on Form N-2 (File No. 333-    ) relating to the AMPS on
file with the Securities and Exchange Commission, as such Registration Statement
may be amended from time to time, as well as short-term municipal obligations.

     "Municipal Index" has the meaning set forth in paragraph 8(a) of these
Articles Supplementary.

     "1940 Act" means the Investment Company Act of 1940, as amended from time
to time.

     "1940 Act AMPS Asset Coverage" means asset coverage, as defined in section
18(h) of the 1940 Act, of at least 200% with respect to all outstanding senior
securities of the Corporation which are stock, including all outstanding shares
of AMPS and Other AMPS (or such other asset coverage as may in the future be
specified in or under the 1940 Act as the minimum asset

                                       19
<PAGE>
 
coverage for senior securities which are stock of a closed-end investment
company as a condition of paying dividends on its common stock).

     "1940 Act Cure Date," with respect to the failure by the Corporation to
maintain the 1940 Act AMPS Asset Coverage (as required by paragraph 6 of these
Articles Supplementary) as of the last Business Day of each month, means the
last Business Day of the following month.

     "Non-Call Period" has the meaning set forth under the definition of
"Specific Redemption Provisions".

     "Non-Payment Period" means, with respect to each series of AMPS, any period
commencing on and including the day on which the Corporation shall fail to (i)
declare, prior to the close of business on the second Business Day preceding any
Dividend Payment Date, for payment on or (to the extent permitted by paragraph
2(c)(i) of these Articles Supplementary) within three Business Days after such
Dividend Payment Date to the Holders as of 12:00 noon, New York City time, on
the Business Day preceding such Dividend Payment Date, the full amount of any
dividend on shares of AMPS payable on such Dividend Payment Date or (ii)
deposit, irrevocably in trust, in same-day funds, with the Auction Agent by
12:00 noon, New York City time, (A) on such Dividend Payment Date the full
amount of any cash dividend on such shares payable (if declared) on such
Dividend Payment Date or (B) on any redemption date for any shares of AMPS
called for redemption, the Mandatory Redemption Price per share of such AMPS or,
in the case of an optional redemption, the Optional Redemption Price per share,
and ending on and including the Business Day on which, by 12:00 noon, New York
City time, all unpaid cash dividends and unpaid redemption prices shall have
been so deposited or shall have

                                       20
<PAGE>
 
otherwise been made available to Holders in same-day funds; provided that, a 
Non-Payment Period shall not end unless the Corporation shall have given at
least five days' but no more than 30 days' written notice of such deposit or
availability to the Auction Agent, all Existing Holders (at their addresses
appearing in the Stock Books) and the Securities Depository. Notwithstanding the
foregoing, the failure by the Corporation to deposit funds as provided for by
clauses (ii)(A) or (ii)(B) above within three Business Days after any Dividend
Payment Date or redemption date, as the case may be, in each case to the extent
contemplated by paragraph 2(c)(i) of these Articles Supplementary, shall not
constitute a "Non-Payment Period."

     "Non-Payment Period Rate" means, initially, 200% of the applicable
Reference Rate (or 275% of such rate if the Corporation has provided
notification to the Auction Agent prior to the Auction establishing the
Applicable Rate for any dividend pursuant to paragraph 2(f) hereof that net
capital gains or other taxable income will be included in such dividend on
shares of AMPS), provided that the Board of Directors of the Corporation shall
have the authority to adjust, modify, alter or change from time to time the
initial Non-Payment Period Rate if the Board of Directors of the Corporation
determines and Moody's and S&P (and any Substitute Rating Agency in lieu of
Moody's or S&P in the event either of such parties shall not rate the AMPS)
advise the Corporation in writing that such adjustment, modification, alteration
or change will not adversely affect their then-current ratings on the AMPS.

     "Normal Dividend Payment Date" has the meaning set forth in paragraph
2(b)(i) of these Articles Supplementary.

                                       21
<PAGE>
 
     "Notice of Redemption" means any notice with respect to the redemption of
shares of AMPS pursuant to paragraph 4 of these Articles Supplementary.

     "Notice of Revocation" has the meaning set forth in paragraph 2(c)(iii) of
these Articles Supplementary.

     "Notice of Special Dividend Period" has the meaning set forth in paragraph
2(c)(iii) of these Articles Supplementary.

     "Optional Redemption Price" means $25,000 per share plus an amount equal to
accumulated but unpaid dividends (whether or not earned or declared) to the date
fixed for redemption and excluding Additional Dividends plus any applicable
redemption premium attributable to the designation of a Premium Call Period.

     "Other AMPS" means the auction rate preferred stock of the Corporation,
other than the AMPS.

     "Outstanding" means, as of any date (i) with respect to AMPS, shares of
AMPS theretofore issued by the Corporation except, without duplication, (A) any
shares of AMPS theretofore cancelled or delivered to the Auction Agent for
cancellation, or redeemed by the Corporation, or as to which a Notice of
Redemption shall have been given and Deposit Securities shall have been
deposited in trust or segregated by the Corporation pursuant to paragraph 4(c)
and (B) any shares of AMPS as to which the Corporation or any Affiliate thereof
shall be a Beneficial Owner, provided that shares of AMPS held by an Affiliate
shall be deemed

                                       22
<PAGE>
 
outstanding for purposes of calculating the AMPS Basic Maintenance Amount and
(ii) with respect to shares of other Preferred Stock, has the equivalent
meaning.

     "Parity Stock" means the AMPS and each other outstanding series of
Preferred Stock the holders of which, together with the holders of the AMPS,
shall be entitled to the receipt of dividends or of amounts distributable upon
liquidation, dissolution or winding up, as the case may be, in proportion to the
full respective preferential amounts to which they are entitled, without
preference or priority one over the other.

     "Person" means and includes an individual, a partnership, a corporation, a
trust, an unincorporated association, a joint venture or other entity or a
government or any agency or political subdivision thereof.

     "Policy" means an insurance policy purchased by the Corporation which
guarantees the payment of principal and interest on specified California
Municipal Bonds or Municipal Bonds during the period in which such California
Municipal Bonds or Municipal Bonds are owned by the Corporation; provided,
however, that, as long as the AMPS are rated by Moody's and S&P, the Corporation
will not obtain any Policy unless Moody's and S&P advise the Corporation in
writing that the purchase of such Policy will not adversely affect their then-
current rating on the AMPS.

     "Potential Beneficial Owner" means a customer of a Broker-Dealer or a
Broker-Dealer that is not a Beneficial Owner of shares of AMPS but that wishes
to purchase such shares, or that is a Beneficial Owner that wishes to purchase
additional shares of AMPS.

                                       23
<PAGE>
 
     "Potential Holder" means any Broker-Dealer or any such other Person as may
be permitted by the Corporation, including any Existing Holder, who may be
interested in acquiring shares of AMPS (or, in the case of an Existing Holder,
additional shares of AMPS).

     "Preferred Stock" means the preferred stock, par value $.10 per share, of
the Corporation, and includes AMPS and Other AMPS.

     "Premium Call Period" has the meaning set forth under the definition of
"Specific Redemption Provisions."

     "Pricing Service" means J.J. Kenny or any pricing service designated by the
Board of Directors of the Corporation provided the Corporation obtains written
assurance from S&P and Moody's that such designation will not impair the rating
then assigned by S&P and Moody's to the AMPS.

     "Quarterly Valuation Date" means the last Business Day of the last month of
each fiscal quarter of the Corporation in each fiscal year of the Corporation,
commencing ____________, 1998.

     "Receivables for California Municipal Bonds Sold" has the meaning set forth
under the definition of S&P Discount Factor.

     "Receivables for California Municipal Bonds or Municipal Bonds Sold"  has
the meaning set forth under the definition of Moody's Discount Factor.

     "Reference Rate" means: (i) with respect to a Dividend Period or a Short
Term Dividend Period having 28 or fewer days, the higher of the applicable "AA"
Composite Commercial Paper 

                                       24
<PAGE>
 
Rate and the Taxable Equivalent of the Short-Term Municipal Bond Rate, (ii) with
respect to any Short Term Dividend Period having more than 28 but fewer than 183
days, the applicable "AA" Composite Commercial Paper Rate, (iii) with respect to
any Short Term Dividend Period having 183 or more but fewer than 364 days, the
applicable U.S. Treasury Bill Rate and (iv) with respect to any Long Term
Dividend Period, the applicable U.S. Treasury Note Rate.

     "Request for Special Dividend Period" has the meaning set forth in
paragraph 2(c)(iii) of these Articles Supplementary.

     "Response" has the meaning set forth in paragraph 2(c)(iii) of these
Articles Supplementary.

     "Retroactive Taxable Allocation" has the meaning set forth in paragraph
2(e) of these Articles Supplementary.

     "Right," with respect to each series of AMPS, has the meaning set forth in
paragraph 2(e) of these Articles Supplementary and, with respect to Other AMPS,
has the equivalent meaning.

     "S&P" means Standard & Poor's, a division of the McGraw Hill Companies or
its successors.

     "S&P Discount Factor" means, for purposes of determining the Discounted
Value of any California Municipal Bond which constitutes an S&P Eligible Asset,
the percentage determined by reference to (a)(i) the rating by S&P, Moody's or
Fitch on such Bond or (ii) in the event the California Municipal Bond is insured
under a Policy and the terms of the Policy permit the Corporation, at its
option, to obtain other permanent insurance guaranteeing the timely payment

                                       25
<PAGE>
 
of interest on such California Municipal Bond and principal thereof to maturity,
the S&P insurance claims-paying ability rating of the issuer of the Policy or
(iii) in the event the California Municipal Bond is insured under an insurance
policy which guarantees the timely payment of interest on such California
Municipal Bond and principal thereof to maturity, the S&P insurance claims-
paying ability rating of the issuer of the insurance policy and (b) the S&P
Exposure Period, in accordance with the tables set forth below:

<TABLE>
<CAPTION>
For California Municipal Bonds:
- ------------------------------
                                                Rating Category
                                   ------------------------------------------
S&P Exposure Period                AAA*        AA*         A*           BBB* 
- -------------------           ------------------------------------------------
<S>                             <C>         <C>         <C>         <C>
40 Business Days                   200%        205%        220%         260%
22 Business Days                   180         185         200          240
10 Business Days                   165         170         185          225
7  Business Days                   160         165         180          220
3  Business Days                   140         145         160          200
</TABLE>

- -------------------
*  S&P rating.


     Notwithstanding the foregoing, (i) the S&P Discount Factor for short-term
California Municipal Bonds will be 115%, so long as such California Municipal
Bonds are rated A-1+ or SP-1+ by S&P and mature or have a demand feature
exercisable in 30 days or less, or 120% so long as such California Municipal
Bonds are rated A-1 or SP-1 by S&P and mature or have a demand feature
exercisable in 30 days or less, or 125% if such California Municipal Bonds are
not rated by S&P but are rated VMIG-1, P-1 or MIG-1 by Moody's or F-1+ by Fitch;
provided, however, such short-term California Municipal Bonds rated by Moody's
or Fitch but not rated by S&P having a demand feature exercisable in 30 days or
less must be backed by a letter of credit, liquidity facility or guarantee from
a bank or other financial institution having a short-term rating of at least A-
1+ from S&P; and further provided that such short-term California Municipal

                                       26
<PAGE>
 
Bonds rated by Moody's or Fitch but not rated by S&P may comprise no more than
50% of short-term California Municipal Bonds that qualify as S&P Eligible
Assets, (ii) the S&P Discount Factor for Receivables for California Municipal
Bonds Sold that are due in more than five Business Days from such Valuation Date
will be the S&P Discount Factor applicable to the California Municipal Bonds
sold, and (iii) no S&P Discount Factor will be applied to Cash or to Receivables
for California Municipal Bonds Sold if such receivables are due within five
Business Days of such Valuation Date. "Receivables for California Municipal
Bonds Sold," for purposes of calculating S&P Eligible Assets as of any Valuation
Date, means the book value of receivables for California Municipal Bonds sold as
of or prior to such Valuation Date if such receivables are due within five
Business Days of such Valuation Date. The Corporation may adopt S&P Discount
Factors for Municipal Bonds other than California Municipal Bonds provided that
S&P advises the Corporation in writing that such action will not adversely
affect its then current rating on the AMPS. For purposes of the foregoing,
Anticipation Notes rated SP-1 or, if not rated by S&P, rated VMIG-1 by Moody's
or F-1+ by Fitch, which do not mature or have a demand feature exercisable in 30
days and which do not have a long-term rating, shall be considered to be short-
term California Municipal Bonds.

     "S&P Eligible Asset" means cash, Receivables for California Municipal Bonds
Sold or a California Municipal Bond that (i) is interest bearing and pays
interest at least semi-annually; (ii) is payable with respect to principal and
interest in United States Dollars; (iii) is publicly rated BBB or higher by S&P
or, except in the case of Anticipation Notes that are grant anticipation notes
or bond anticipation notes which must be rated by S&P to be included in S&P
Eligible Assets, if not rated by S&P but rated by Moody's or Fitch, is rated at
least A by Moody's or 

                                       27
<PAGE>
 
Fitch (provided that such Moody's-rated or Fitch-rated California Municipal
Bonds will be included in S&P Eligible Assets only to the extent the Market
Value of such California Municipal Bonds does not exceed 50% of the aggregate
Market Value of the S&P Eligible Assets; and further provided that, for purposes
of determining the S&P Discount Factor applicable to any such Moody's-rated or
Fitch-rated California Municipal Bond, such California Municipal Bond will be
deemed to have an S&P rating which is one full rating category lower than its
Moody's rating); (iv) is not subject to a covered call or covered put option
written by the Corporation; (v) except for Inverse Floaters, is not part of a
private placement of California Municipal Bonds; and (vi) except for Inverse
Floaters, is part of an issue of California Municipal Bonds with an original
issue size of at least $20 million or, if of an issue with an original issue
size below $20 million (but in no event below $10 million), is issued by an
issuer with a total of at least $50 million of securities outstanding.
Notwithstanding the foregoing:

          (1)  California Municipal Bonds of any one issuer or guarantor
(excluding bond insurers) will be considered S&P Eligible Assets only to the
extent the Market Value of such California Municipal Bonds does not exceed 10%
of the aggregate Market Value of the S&P Eligible Assets, provided that 2% is
added to the applicable S&P Discount Factor for every 1% by which the Market
Value of such California Municipal Bonds exceeds 5% of the aggregate Market
Value of the S&P Eligible Assets; and

          (2)  California Municipal Bonds of any one issue type category (as
described below) will be considered S&P Eligible Assets only to the extent the
Market Value of such Bonds does not exceed 25% of the aggregate Market Value of
S&P Eligible Assets, except that California Municipal Bonds falling within the
utility issue type category will be broken down 

                                       28
<PAGE>
 
into three sub-categories (as described below) and such California Municipal
Bonds will be considered S&P Eligible Assets to the extent the Market Value of
such Bonds in each such sub-category does not exceed 25% of the aggregate Market
Value of S&P Eligible Assets and except that California Municipal Bonds falling
within the general obligation issue type category will be considered S&P
Eligible Assets to the extent the Market Value of such Bonds does not exceed 50%
of the aggregate Market Value of S&P Eligible Assets. For purposes of the issue
type category requirement described above, California Municipal Bonds will be
classified within one of the following categories: health care issues, housing
issues, educational facilities issues, student loan issues, transportation
issues, industrial development bond issues, utility issues, general obligation
issues, lease obligations, escrowed bonds and other issues not falling within
one of the aforementioned categories. The general obligation issue type category
includes any issuer that is directly or indirectly guaranteed by the State of
California or its political subdivisions. Utility issuers are included in the
general obligation issue type category if the issuer is directly or indirectly
guaranteed by the State of California or its political subdivisions. For
purposes of the issue type category requirement described above, California
Municipal Bonds in the utility issue type category will be classified within one
of the three following sub-categories: (i) electric, gas and combination issues
(if the combination issue includes an electric issue), (ii) water and sewer
utilities and combination issues (if the combination issue does not include an
electric issue), and (iii) irrigation, resource recovery, solid waste and other
utilities, provided that California Municipal Bonds included in this sub-
category (iii) must be rated by S&P in order to be included in S&P Eligible
Assets; and

                                       29
<PAGE>
 
          (3) California Municipal Bonds which are escrow bonds or defeased
bonds may compose up to 100% of the aggregate Market Value of S&P Eligible
Assets if such Bonds initially are assigned a rating by S&P in accordance with
S&P's legal defeasance criteria or rerated by S&P as economic defeased escrow
bonds and assigned an AAA rating.  California Municipal Bonds may be rated as
escrow bonds by another nationally recognized rating agency or rerated as an
escrow bond and assigned the equivalent of an S&P AAA rating, provided that such
equivalent rated Bonds are limited to 50% of the aggregate Market Value of S&P
Eligible Assets and are deemed to have an AA S&P rating for purposes of
determining the S&P Discount Factor applicable to such California Municipal
Bonds.  The limitations on California Municipal Bonds of any one issuer in
clause (1) above is not applicable to escrow bonds, however, economically
defeased bonds that are either initially rate or rerated by S&P or another
nationally recognized rating agency and assigned the same rating level as the
issuer of the Bonds will remain in its original issue type category set forth in
clause (2) above.  California Municipal Bonds that are legally defeased and
secured by securities issued or guaranteed by the United States Government are
not required to meet the minimum issuance size requirement set forth above.

     The Corporation may include Municipal Bonds other than California Municipal
Bonds as S&P Eligible Assets pursuant to guidelines and restrictions to be
established by S&P provided that S&P advises the Corporation in writing that
such action will not adversely affect its then current rating on the AMPS.

     "S&P Exposure Period" means the maximum period of time following a
Valuation Date, including the Valuation Date and the AMPS Basic Maintenance Cure
Date, that the Corporation 

                                       30
<PAGE>
 
has under these Articles Supplementary to cure any failure to maintain, as of
such Valuation Date, the Discounted Value for its portfolio at least equal to
the AMPS Basic Maintenance Amount (as described in paragraph 7(a) of these
Articles Supplementary).

     "S&P Hedging Transactions" has the meaning set forth in paragraph 8(a) of
these Articles Supplementary.

     "S&P Volatility Factor" means 277% or such other potential dividend rate
increase factor as S&P advises the Corporation in writing is applicable.

     "Securities Depository" means The Depository Trust Company or any successor
company or other entities elected by the Corporation as securities depository
for the shares of AMPS that agrees to follow the procedures required to be
followed by such securities depository in connection with the shares of AMPS.

     "Service" means the United States Internal Revenue Service.

     "7-Day Dividend Period" means a Dividend Period consisting of seven days.

     "Short Term Dividend Period" means a Special Dividend Period consisting of
a specified number of days (other than seven) evenly divisible by seven and not
fewer than seven nor more than 364.

     "Special Dividend Period" means a Dividend Period consisting of (i) a
specified number of days (other than seven), evenly divisible by seven and not
fewer than seven nor more than 364 or (ii) a specified period of one whole year
or more but not greater than five years (in each case subject to adjustment as
provided in paragraph 2(b)(i)).

                                       31
<PAGE>
 
     "Specific Redemption Provisions" means, with respect to a Special Dividend
Period either, or any combination of, (i) a period (a "Non-Call Period")
determined by the Board of Directors of the Corporation, after consultation with
the Auction Agent and the Broker-Dealers, during which the shares of AMPS
subject to such Dividend Period shall not be subject to redemption at the option
of the Corporation and (ii) a period (a "Premium Call Period"), consisting of a
number of whole years and determined by the Board of Directors of the
Corporation, after consultation with the Auction Agent and the Broker-Dealers,
during each year of which the shares of AMPS subject to such Dividend Period
shall be redeemable at the Corporation's option at a price per share equal to
$25,000 plus accumulated but unpaid dividends plus a premium expressed as a
percentage of $25,000, as determined by the Board of Directors of the
Corporation after consultation with the Auction Agent and the Broker-Dealers.

     "Stock Books" means the books maintained by the Auction Agent setting forth
at all times a current list, as determined by the Auction Agent, of Existing
Holders of the AMPS.

     "Stock Register" means the register of Holders maintained on behalf of the
Corporation by the Auction Agent in its capacity as transfer agent and registrar
for the AMPS.

     "Subsequent Dividend Period," with respect to AMPS, has the meaning set
forth in paragraph 2(c)(i) of these Articles Supplementary and, with respect to
Other AMPS, has the equivalent meaning.

     "Substitute Commercial Paper Dealers" means such Substitute Commercial
Paper Dealer or Dealers as the Corporation may from time to time appoint or, in
lieu of any thereof, their respective affiliates or successors.

                                       32
<PAGE>
 
     "Substitute Rating Agency" and "Substitute Rating Agencies" mean a
nationally recognized statistical rating organization or two nationally
recognized statistical rating organizations, respectively, selected by Merrill
Lynch, Pierce, Fenner & Smith Incorporated or its affiliates and successors,
after consultation with the Corporation, to act as the substitute rating agency
or substitute rating agencies, as the case may be, to determine the credit
ratings of the shares of AMPS.

     "Taxable Equivalent of the Short-Term Municipal Bond Rate" on any date
means 90% of the quotient of (A) the per annum rate expressed on an interest
equivalent basis equal to the Kenny S&P 30-day High Grade Index (the "Kenny
Index") or any successor index, made available for the Business Day immediately
preceding such date but in any event not later than 8:30 A.M., New York City
time, on such date by Kenny Information Systems Inc. or any successor thereto,
based upon 30-day yield evaluations at par of bonds the interest on which is
excludable for regular Federal income tax purposes under the Code of "high
grade" component issuers selected by Kenny Information Systems Inc. or any such
successor from time to time in its discretion, which component issuers shall
include, without limitation, issuers of general obligation bonds but shall
exclude any bonds the interest on which constitutes an item of tax preference
under Section 57(a)(5) of the Code, or successor provisions, for purposes of the
"alternative minimum tax," divided by (B) 1.00 minus the Marginal Tax Rate
(expressed as a decimal); provided, however, that if the Kenny Index is not made
so available by 8:30 A.M., New York City time, on such date by Kenny Information
Systems Inc. or any successor, the Taxable Equivalent of the Short-Term
Municipal Bond Rate shall mean the quotient of (A) the per annum rate expressed
on an interest equivalent basis equal to the most recent Kenny Index so

                                       33
<PAGE>
 
made available for any preceding Business Day, divided by (B) 1.00 minus the
Marginal Tax Rate (expressed as a decimal). The Corporation may not utilize a
successor index to the Kenny Index unless Moody's and S&P provide the
Corporation with written confirmation that the use of such successor index will
not adversely affect the then-current respective Moody's and S&P ratings of the
AMPS.

     "Treasury Bonds" has the meaning set forth in paragraph 8(a) of these
Articles Supplementary.

     "U.S. Treasury Bill Rate" on any date means (i) the Interest Equivalent of
the rate on the actively traded Treasury Bill with a maturity most nearly
comparable to the length of the related Dividend Period, as such rate is made
available on a discount basis or otherwise by the Federal Reserve Bank of New
York in its Composite 3:30 P.M. Quotations for U.S. Government Securities report
for such Business Day, or (ii) if such yield as so calculated is not available,
the Alternate Treasury Bill Rate on such date.  "Alternate Treasury Bill Rate"
on any date means the Interest Equivalent of the yield as calculated by
reference to the arithmetic average of the bid price quotations of the actively
traded Treasury Bill with a maturity most nearly comparable to the length of the
related Dividend Period, as determined by bid price quotations as of any time on
the Business Day immediately preceding such date, obtained from at least three
recognized primary U.S. Government securities dealers selected by the Auction
Agent.

     "U.S. Treasury Note Rate" on any date means (i) the yield as calculated by
reference to the bid price quotation of the actively traded, current coupon
Treasury Note with a maturity most nearly comparable to the length of the
related Dividend Period, as such bid price quotation is

                                       34
<PAGE>
 
published on the Business Day immediately preceding such date by the Federal
Reserve Bank of New York in its Composite 3:30 P.M. Quotations for U.S.
Government Securities report for such Business Day, or (ii) if such yield as so
calculated is not available, the Alternate Treasury Note Rate on such date.
"Alternate Treasury Note Rate" on any date means the yield as calculated by
reference to the arithmetic average of the bid price quotations of the actively
traded, current coupon Treasury Note with a maturity most nearly comparable to
the length of the related Dividend Period, as determined by the bid price
quotations as of any time on the Business Day immediately preceding such date,
obtained from at least three recognized primary U.S. Government securities
dealers selected by the Auction Agent.

     "Valuation Date" means, for purposes of determining whether the Corporation
is maintaining the AMPS Basic Maintenance Amount, each Business Day commencing
with the Date of Original Issue.

     "Variation Margin" means, in connection with an outstanding futures
contract owned or sold by the Corporation, the amount of cash or securities paid
to or received from a broker (subsequent to the Initial Margin payment) from
time to time as the price of such futures contract fluctuates.

     (b) The foregoing definitions of Accountant's Confirmation, AMPS Basic
Maintenance Amount, AMPS Basic Maintenance Cure Date, AMPS Basic Maintenance
Report, Deposit Securities, Discounted Value, Independent Accountant, Initial
Margin, Market Value, Maximum Potential Additional Dividend Liability, Moody's
Discount Factor, Moody's Eligible Asset, Moody's Exposure Period, Moody's
Hedging Transactions, Moody's Volatility Factor, 

                                       35
<PAGE>
 
S&P Discount Factor, S&P Eligible Asset, S&P Exposure Period, S&P Hedging
Transactions, S&P Volatility Factor, Valuation Date and Variation Margin have
been determined by the Board of Directors of the Corporation in order to obtain
a "aaa" rating from Moody's and a AAA rating from S&P on the AMPS on their Date
of Original Issue; and the Board of Directors of the Corporation shall have the
authority, without shareholder approval, to amend, alter or repeal from time to
time the foregoing definitions and the restrictions and guidelines set forth
thereunder if Moody's and S&P or any Substitute Rating Agency advises the
Corporation in writing that such amendment, alteration or repeal will not
adversely affect their then current ratings on the AMPS.

     2.  Dividends.  (a)  The Holders shall be entitled to receive, when, as and
         ---------                                                              
if declared by the Board of Directors of the Corporation, out of funds legally
available therefor, cumulative dividends each consisting of (i) cash at the
Applicable Rate, (ii) a Right to receive cash as set forth in paragraph 2(e)
below, and (iii) any additional amounts as set forth in paragraph 2(f) below,
and no more, payable on the respective dates set forth below.  Dividends on the
shares of AMPS so declared and payable shall be paid (i) in preference to and in
priority over any dividends declared and payable on the Common Stock, and (ii)
to the extent permitted under the Code and to the extent available, out of net
tax-exempt income earned on the Corporation's investments.  To the extent
permitted under the Code, dividends on shares of AMPS will be designated as
exempt-interest dividends.  For the purposes of this section, the term "net tax-
exempt income" shall exclude capital gains of the Corporation.

     (b)  (i) Cash dividends on shares of AMPS shall accumulate from the Date of
Original Issue and shall be payable, when, as and if declared by the Board of
Directors, out of funds 

                                       36
<PAGE>
 
legally available therefor, commencing on the Initial Dividend Payment Date with
respect to each series of AMPS. Following the Initial Dividend Payment Date for
each series of AMPS, dividends on each series of AMPS will be payable, at the
option of the Corporation, either (i) with respect to any 7-Day Dividend Period
and any Short Term Dividend Period of 35 or fewer days, on the day next
succeeding the last day thereof or (ii) with respect to any Short Term Dividend
Period of more than 35 days and with respect to any Long Term Dividend Period,
monthly on the first Business Day of each calendar month during such Short Term
Dividend Period or Long Term Dividend Period and on the day next succeeding the
last day thereof (each such date referred to in clause (i) or (ii) being herein
referred to as a "Normal Dividend Payment Date"), except that if such Normal
Dividend Payment Date is not a Business Day, then the Dividend Payment Date
shall be the first Business Day next succeeding such Normal Dividend Payment
Date. Although any particular Dividend Payment Date may not occur on the
originally scheduled date because of the exceptions discussed above, the next
succeeding Dividend Payment Date, subject to such exceptions, will occur on the
next following originally scheduled date. If for any reason a Dividend Payment
Date cannot be fixed as described above, then the Board of Directors shall fix
the Dividend Payment Date. The Board of Directors by resolution may change a
Dividend Payment Date if such change does not adversely affect the contract
rights of the Holders of shares of AMPS set forth in the Charter. The Initial
Dividend Period, 7-Day Dividend Periods and Special Dividend Periods are
hereinafter sometimes referred to as Dividend Periods. Each dividend payment
date determined as provided above is hereinafter referred to as a "Dividend
Payment Date."

                                       37
<PAGE>
 
          (ii)  Each dividend shall be paid to the Holders as they appear in the
Stock Register as of 12:00 noon, New York City time, on the Business Day
preceding the Dividend Payment Date. Dividends in arrears for any past Dividend
Period may be declared and paid at any time, without reference to any regular
Dividend Payment Date, to the Holders as they appear on the Stock Register on a
date, not exceeding 15 days prior to the payment date therefor, as may be fixed
by the Board of Directors of the Corporation.

      (c)  (i)  During the period from and including the Date of Original Issue
to but excluding the Initial Dividend Payment Date for each series of AMPS (the
"Initial Dividend Period"), the Applicable Rate shall be the Initial Dividend
Rate.  Commencing on the Initial Dividend Payment Date for each series of AMPS,
the Applicable Rate for each subsequent dividend period (hereinafter referred to
as a "Subsequent Dividend Period"), which Subsequent Dividend Period shall
commence on and include a Dividend Payment Date and shall end on and include the
calendar day prior to the next Dividend Payment Date (or last Dividend Payment
Date in a Dividend Period if there is more than one Dividend Payment Date),
shall be equal to the rate per annum that results from implementation of the
Auction Procedures.

     The Applicable Rate for each Dividend Period commencing during a Non-
Payment Period shall be equal to the Non-Payment Period Rate; and each Dividend
Period, commencing after the first day of, and during, a Non-Payment Period
shall be a 7-Day Dividend Period in the case of each series of AMPS.  Except in
the case of the willful failure of the Corporation to pay a dividend on a
Dividend Payment Date or to redeem any shares of AMPS on the date set for such
redemption, any amount of any dividend due on any Dividend Payment Date (if,
prior to the close of business on the second Business Day preceding such
Dividend Payment Date, the 

                                       38
<PAGE>
 
Corporation has declared such dividend payable on such Dividend Payment Date to
the Holders of such shares of AMPS as of 12:00 noon, New York City time, on the
Business Day preceding such Dividend Payment Date) or redemption price with
respect to any shares of AMPS not paid to such Holders when due may be paid to
such Holders in the same form of funds by 12:00 noon, New York City time, on any
of the first three Business Days after such Dividend Payment Date or due date,
as the case may be, provided that, such amount is accompanied by a late charge
calculated for such period of non-payment at the Non-Payment Period Rate applied
to the amount of such non-payment based on the actual number of days comprising
such period divided by 365. In the case of a willful failure of the Corporation
to pay a dividend on a Dividend Payment Date or to redeem any shares of AMPS on
the date set for such redemption, the preceding sentence shall not apply and the
Applicable Rate for the Dividend Period commencing during the Non-Payment Period
resulting from such failure shall be the Non-Payment Period Rate. For the
purposes of the foregoing, payment to a person in same-day funds on any Business
Day at any time shall be considered equivalent to payment to such person in New
York Clearing House (next-day) funds at the same time on the preceding Business
Day, and any payment made after 12:00 noon, New York City time, on any Business
Day shall be considered to have been made instead in the same form of funds and
to the same person before 12:00 noon, New York City time, on the next Business
Day.

          (ii)  The amount of cash dividends per share of any series of AMPS
payable (if declared) on the Initial Dividend Payment Date, each 7-Day Dividend
Period and each Dividend Payment Date of each Short Term Dividend Period shall
be computed by multiplying the Applicable Rate for such Dividend Period by a
fraction, the numerator of which will be the 

                                       39
<PAGE>
 
number of days in such Dividend Period or part thereof that such share was
outstanding and the denominator of which will be 365, multiplying the amount so
obtained by $25,000, and rounding the amount so obtained to the nearest cent.
During any Long Term Dividend Period, the amount of cash dividends per share of
AMPS payable (if declared) on any Dividend Payment Date shall be computed by
multiplying the Applicable Rate for such Dividend Period by a fraction, the
numerator of which will be such number of days in such part of such Dividend
Period that such share was outstanding and for which dividends are payable on
such Dividend Payment Date and the denominator of which will be 360, multiplying
the amount so obtained by $25,000, and rounding the amount so obtained to the
nearest cent.

          (iii)  With respect to each Dividend Period that is a Special Dividend
Period, the Corporation may, at its sole option and to the extent permitted by
law, by telephonic and written notice (a "Request for Special Dividend Period")
to the Auction Agent and to each Broker-Dealer, request that the next succeeding
Dividend Period for a series of AMPS be a number of days (other than seven),
evenly divisible by seven, and not fewer than seven nor more than 364 in the
case of a Short Term Dividend Period or  one whole year or more but not greater
than five years in the case of a Long Term Dividend Period, specified in such
notice, provided that the Corporation may not give a Request for Special
Dividend Period of greater than 28 days (and any such request shall be null and
void) unless, for any Auction occurring after the initial Auction, Sufficient
Clearing Bids were made in the last occurring Auction and unless full cumulative
dividends, any amounts due with respect to redemptions, and any Additional
Dividends payable prior to such date have been paid in full.  Such Request for
Special Dividend Period, in the case of a Short Term Dividend Period, shall be
given on or prior to the second 

                                       40
<PAGE>
 
Business Day but not more than seven Business Days prior to an Auction Date for
a series of AMPS and, in the case of a Long Term Dividend Period, shall be given
on or prior to the second Business Day but not more than 28 days prior to an
Auction Date for the AMPS. Upon receiving such Request for Special Dividend
Period, the Broker-Dealer(s) shall jointly determine whether, given the factors
set forth below, it is advisable that the Corporation issue a Notice of Special
Dividend Period for the series of AMPS as contemplated by such Request for
Special Dividend Period and the Optional Redemption Price of the AMPS during
such Special Dividend Period and the Specific Redemption Provisions and shall
give the Corporation and the Auction Agent written notice (a "Response") of such
determination by no later than the second Business Day prior to such Auction
Date. In making such determination the Broker-Dealer(s) will consider (1)
existing short-term and long-term market rates and indices of such short-term
and long-term rates, (2) existing market supply and demand for short-term and
long-term securities, (3) existing yield curves for short-term and long-term
securities comparable to the AMPS, (4) industry and financial conditions which
may affect the AMPS, (5) the investment objective of the Corporation, and (6)
the Dividend Periods and dividend rates at which current and potential
beneficial holders of the AMPS would remain or become beneficial holders. If the
Broker-Dealer(s) shall not give the Corporation and the Auction Agent a Response
by such second Business Day or if the Response states that given the factors set
forth above it is not advisable that the Corporation give a Notice of Special
Dividend Period for the series of AMPS, the Corporation may not give a Notice of
Special Dividend Period in respect of such Request for Special Dividend Period.
In the event the Response indicates that it is advisable that the Corporation
give a Notice of Special Dividend Period for the series of AMPS, the Corporation
may by no later than the second Business Day prior to such Auction Date give a
notice (a

                                       41
<PAGE>
 
"Notice of Special Dividend Period") to the Auction Agent, the Securities
Depository and each Broker-Dealer which notice will specify (i) the duration of
the Special Dividend Period, (ii) the Optional Redemption Price as specified in
the related Response and (iii) the Specific Redemption Provisions, if any, as
specified in the related Response. The Corporation also shall provide a copy of
such Notice of Special Dividend Period to Moody's and S&P. The Corporation shall
not give a Notice of Special Dividend Period and, if the Corporation has given a
Notice of Special Dividend Period, the Corporation is required to give
telephonic and written notice of its revocation (a "Notice of Revocation") to
the Auction Agent, each Broker-Dealer, and the Securities Depository on or prior
to the Business Day prior to the relevant Auction Date if (x) either the 1940
Act AMPS Asset Coverage is not satisfied or the Corporation shall fail to
maintain S&P Eligible Assets and Moody's Eligible Assets each with an aggregate
Discounted Value at least equal to the AMPS Basic Maintenance Amount, in each
case on each of the two Valuation Dates immediately preceding the Business Day
prior to the relevant Auction Date on an actual basis and on a pro forma basis
giving effect to the proposed Special Dividend Period (using as a pro forma
dividend rate with respect to such Special Dividend Period the dividend rate
which the Broker-Dealers shall advise the Corporation is an approximately equal
rate for securities similar to the AMPS with an equal dividend period), provided
that, in calculating the aggregate Discounted Value of Moody's Eligible Assets
for this purpose, the Moody's Exposure Period shall be deemed to be one week
longer, (y) sufficient funds for the payment of dividends payable on the
immediately succeeding Dividend Payment Date have not been irrevocably deposited
with the Auction Agent by the close of business on the third Business Day
preceding the related Auction Date or (z) the Broker-Dealer(s) jointly advise
the Corporation that after consideration of the factors listed above they have
concluded that it is advisable to give a Notice

                                       42
<PAGE>
 
of Revocation. The Corporation also shall provide a copy of such Notice of
Revocation to Moody's and S&P. If the Corporation is prohibited from giving a
Notice of Special Dividend Period as a result of any of the factors enumerated
in clause (x), (y) or (z) above or if the Corporation gives a Notice of
Revocation with respect to a Notice of Special Dividend Period for any series of
AMPS, the next succeeding Dividend Period will be a 7-Day Dividend Period. In
addition, in the event Sufficient Clearing Bids are not made in the applicable
Auction or such Auction is not held for any reason, such next succeeding
Dividend Period will be a 7-Day Dividend Period and the Corporation may not
again give a Notice of Special Dividend Period for the AMPS (and any such
attempted notice shall be null and void) until Sufficient Clearing Bids have
been made in an Auction with respect to a 7-Day Dividend Period.

     (d)  (i)  Holders shall not be entitled to any dividends, whether payable
in cash, property or stock, in excess of full cumulative dividends and
applicable late charges, as herein provided, on the shares of AMPS (except for
Additional Dividends as provided in paragraph 2(e) hereof and additional
payments as provided in paragraph 2(f) hereof).  Except for the late charge
payable pursuant to paragraph 2(c)(i) hereof, no interest, or sum of money in
lieu of interest, shall be payable in respect of any dividend payment on the
shares of AMPS that may be in arrears.

          (ii) For so long as any share of AMPS is Outstanding, the Corporation
shall not declare, pay or set apart for payment any dividend or other
distribution (other than a dividend or distribution paid in shares of, or
options, warrants or rights to subscribe for or purchase, Common Stock or other
stock, if any, ranking junior to the shares of AMPS as to dividends or upon
liquidation) in respect of the Common Stock or any other stock of the
Corporation ranking

                                       43
<PAGE>
 
junior to or on a parity with the shares of AMPS as to dividends or upon
liquidation, or call for redemption, redeem, purchase or otherwise acquire for
consideration any shares of the Common Stock or any other such junior stock
(except by conversion into or exchange for stock of the Corporation ranking
junior to the shares of AMPS as to dividends and upon liquidation) or any other
such Parity Stock (except by conversion into or exchange for stock of the
Corporation ranking junior to or on a parity with the shares of AMPS as to
dividends and upon liquidation), unless (A) immediately after such transaction,
the Corporation shall have S&P Eligible Assets and Moody's Eligible Assets each
with an aggregate Discounted Value equal to or greater than the AMPS Basic
Maintenance Amount and the Corporation shall maintain the 1940 Act AMPS Asset
Coverage, (B) full cumulative dividends on shares of AMPS and shares of Other
AMPS due on or prior to the date of the transaction have been declared and paid
or shall have been declared and sufficient funds for the payment thereof
deposited with the Auction Agent, (C) any Additional Dividend required to be
paid under paragraph 2(e) below on or before the date of such declaration or
payment has been paid and (D) the Corporation has redeemed the full number of
shares of AMPS required to be redeemed by any provision for mandatory redemption
contained herein.

     (e) Each dividend shall consist of (i) cash at the Applicable Rate, (ii) an
uncertificated right (a "Right") to receive an Additional Dividend (as defined
below), and (iii) any additional amounts as set forth in paragraph 2(f) below.
Each Right shall thereafter be independent of the share or shares of AMPS on
which the dividend was paid. The Corporation shall cause to be maintained a
record of each Right received by the respective Holders. A Right may not be
transferred other than by operation of law. If the Corporation retroactively
allocates

                                       44
<PAGE>
 
any net capital gains or other income subject to regular Federal income taxes to
shares of AMPS without having given advance notice thereof to the Auction Agent
as described in paragraph 2(f) hereof solely by reason of the fact that such
allocation is made as a result of the redemption of all or a portion of the
outstanding shares of AMPS or the liquidation of the Corporation (the amount of
such allocation referred to herein as a "Retroactive Taxable Allocation"), the
Corporation will, within 90 days (and generally within 60 days) after the end of
the Corporation's fiscal year for which a Retroactive Taxable Allocation is
made, provide notice thereof to the Auction Agent and to each holder of a Right
applicable to such shares of AMPS (initially Cede & Co. as nominee of The
Depository Trust Company) during such fiscal year at such holder's address as
the same appears or last appeared on the Stock Books of the Corporation. The
Corporation will, within 30 days after such notice is given to the Auction
Agent, pay to the Auction Agent (who will then distribute to such holders of
Rights), out of funds legally available therefor, an amount equal to the
aggregate Additional Dividend with respect to all Retroactive Taxable
Allocations made to such holders during the fiscal year in question.

     An "Additional Dividend" means payment to a present or former holder of
shares of AMPS of an amount which, when taken together with the aggregate amount
of Retroactive Taxable Allocations made to such holder with respect to the
fiscal year in question, would cause such holder's dividends in dollars (after
Federal and California income tax consequences) from the aggregate of both the
Retroactive Taxable Allocations and the Additional Dividend to be equal to the
dollar amount of the dividends which would have been received by such holder if
the amount of the aggregate Retroactive Taxable Allocations would have been
excludable from the gross income of such holder. Such Additional Dividend shall
be calculated (i) without

                                       45
<PAGE>
 
consideration being given to the time value of money; (ii) assuming that no
holder of shares of AMPS is subject to the Federal alternative minimum tax with
respect to dividends received from the Corporation; and (iii) assuming that each
Retroactive Taxable Allocation would be taxable in the hands of each holder of
shares of AMPS at the greater of: (x) the maximum combined marginal regular
Federal and California individual income tax rate applicable to ordinary income
or capital gains depending on the taxable character of the distribution
(including any surtax); or (y) the maximum combined marginal regular Federal and
California corporate income tax rate applicable to ordinary income or capital
gains depending on the taxable character of the distribution (taking into
account in both (x) and (y) the Federal income tax deductibility of state taxes
paid or incurred but not any phase out of, or provision limiting, personal
exemptions, itemized deductions, or the benefit of lower tax brackets and
assuming the taxability of Federally tax-exempt dividends for corporations for
California state income tax purposes).

     (f) Except as provided below, whenever the Corporation intends to include
any net capital gains or other income subject to regular Federal income taxes in
any dividend on shares of AMPS, the Corporation will notify the Auction Agent of
the amount to be so included at least five Business Days prior to the Auction
Date on which the Applicable Rate for such dividend is to be established.  The
Corporation may also include such income in a dividend on shares of a series of
AMPS without giving advance notice thereof if it increases the dividend by an
additional amount calculated as if such income was a Retroactive Taxable
Allocation and the additional amount was an Additional Dividend, provided that
the Corporation will notify the Auction Agent of the additional amounts to be
included in such dividend at least five Business Days prior to the applicable
Dividend Payment Date.

                                       46
<PAGE>
 
     (g) No fractional shares of AMPS shall be issued.

     3.  Liquidation Rights.  Upon any liquidation, dissolution or winding up of
         ------------------                                                     
the Corporation, whether voluntary or involuntary, the Holders shall be entitled
to receive, out of the assets of the Corporation available for distribution to
shareholders, before any distribution or payment is made upon any Common Stock
or any other capital stock ranking junior in right of payment upon liquidation
to the AMPS, the sum of $25,000 per share plus accumulated but unpaid dividends
(whether or not earned or declared) thereon to the date of distribution, and
after such payment the Holders will be entitled to no other payments other than
Additional Dividends as provided in paragraph 2(e) hereof. If upon any
liquidation, dissolution or winding up of the Corporation, the amounts payable
with respect to the AMPS and any other Outstanding class or series of Preferred
Stock of the Corporation ranking on a parity with the AMPS as to payment upon
liquidation are not paid in full, the Holders and the holders of such other
class or series will share ratably in any such distribution of assets in
proportion to the respective preferential amounts to which they are entitled.
After payment of the full amount of the liquidating distribution to which they
are entitled, the Holders will not be entitled to any further participation in
any distribution of assets by the Corporation except for any Additional
Dividends. A consolidation, merger or statutory share exchange of the
Corporation with or into any other corporation or entity or a sale, whether for
cash, shares of stock, securities or properties, of all or substantially all or
any part of the assets of the Corporation shall not be deemed or construed to be
a liquidation, dissolution or winding up of the Corporation.

     4.  Redemption.  (a)  Shares of AMPS shall be redeemable by the Corporation
         ----------                                                             
as provided below:

                                       47
<PAGE>
 
          (i) To the extent permitted under the 1940 Act and Maryland law, upon
giving a Notice of Redemption, the Corporation at its option may redeem shares
of AMPS, in whole or in part, out of funds legally available therefor, at the
Optional Redemption Price per share, on any Dividend Payment Date; provided that
no share of AMPS may be redeemed at the option of the Corporation during (A) the
Initial Dividend Period with respect to a series of shares or (B) a Non-Call
Period to which such share is subject.  In addition, holders of AMPS which are
redeemed shall be entitled to receive Additional Dividends to the extent
provided herein.  The Corporation may not give a Notice of  Redemption relating
to an optional redemption as described in this paragraph 4(a)(i) unless, at the
time of giving such Notice of Redemption, the Corporation has available Deposit
Securities with maturity or tender dates not later than the day preceding the
applicable redemption date and having a value not less than the amount due to
Holders by reason of the redemption of their shares of AMPS on such redemption
date.

          (ii) The Corporation shall redeem, out of funds legally available
therefor, at the Mandatory Redemption Price per share, shares of AMPS to the
extent permitted under the 1940 Act and Maryland law, on a date fixed by the
Board of Directors, if the Corporation fails to maintain S&P Eligible Assets and
Moody's Eligible Assets each with an aggregate Discounted Value equal to or
greater than the AMPS Basic Maintenance Amount as provided in paragraph 7(a) or
to satisfy the 1940 Act AMPS Asset Coverage as provided in paragraph 6 and such
failure is not cured on or before the AMPS Basic Maintenance Cure Date or the
1940 Act Cure Date (herein collectively referred to as a "Cure Date"), as the
case may be. In addition, holders of AMPS so redeemed shall be entitled to
receive Additional Dividends to the extent provided herein. The number of shares
of AMPS to be redeemed shall be equal to the lesser of (i) the

                                       48
<PAGE>
 
minimum number of shares of AMPS the redemption of which, if deemed to have
occurred immediately prior to the opening of business on the Cure Date, together
with all shares of other Preferred Stock subject to redemption or retirement,
would result in the Corporation having S&P Eligible Assets and Moody's Eligible
Assets each with an aggregate Discounted Value equal to or greater than the AMPS
Basic Maintenance Amount or satisfaction of the 1940 Act AMPS Asset Coverage, as
the case may be, on such Cure Date (provided that, if there is no such minimum
number of shares of AMPS and shares of other Preferred Stock the redemption of
which would have such result, all shares of AMPS and shares of other Preferred
Stock then Outstanding shall be redeemed), and (ii) the maximum number of shares
of AMPS, together with all shares of other Preferred Stock subject to redemption
or retirement, that can be redeemed out of funds expected to be legally
available therefor on such redemption date. In determining the number of shares
of AMPS required to be redeemed in accordance with the foregoing, the
Corporation shall allocate the number required to be redeemed which would result
in the Corporation having S&P Eligible Assets and Moody's Eligible Assets each
with an aggregate Discounted Value equal to or greater than the AMPS Basic
Maintenance Amount or satisfaction of the 1940 Act AMPS Asset Coverage, as the
case may be, pro rata among shares of AMPS of all series, Other AMPS and other
Preferred Stock subject to redemption pursuant to provisions similar to those
contained in this paragraph 4(a)(ii); provided that, shares of AMPS which may
not be redeemed at the option of the Corporation due to the designation of a 
Non-Call Period applicable to such shares (A) will be subject to mandatory
redemption only to the extent that other shares are not available to satisfy the
number of shares required to be redeemed and (B) will be selected for redemption
in an ascending order of outstanding number of days in the Non-Call Period (with
shares with the lowest number of days to be redeemed first) and by lot in the

                                       49
<PAGE>
 
event of shares having an equal number of days in such Non-Call Period. The
Corporation shall effect such redemption on a Business Day which is not later
than 35 days after such Cure Date, except that if the Corporation does not have
funds legally available for the redemption of all of the required number of
shares of AMPS and shares of other Preferred Stock which are subject to
mandatory redemption or the Corporation otherwise is unable to effect such
redemption on or prior to 35 days after such Cure Date, the Corporation shall
redeem those shares of AMPS which it is unable to redeem on the earliest
practicable date on which it is able to effect such redemption out of funds
legally available therefor.

     (b) Notwithstanding any other provision of this paragraph 4, no shares of
AMPS may be redeemed pursuant to paragraph 4(a)(i) of these Articles
Supplementary (i) unless all dividends in arrears on all remaining outstanding
shares of Parity Stock shall have been or are being contemporaneously paid or
declared and set apart for payment and (ii) if redemption thereof would result
in the Corporation's failure to maintain Moody's Eligible Assets or S&P Eligible
Assets with an aggregate Discounted Value equal to or greater than the AMPS
Basic Maintenance Amount. In the event that less than all the outstanding shares
of a series of AMPS are to be redeemed and there is more than one Holder, the
shares of that series of AMPS to be redeemed shall be selected by lot or such
other method as the Corporation shall deem fair and equitable.

     (c) Whenever shares of AMPS are to be redeemed, the Corporation, not less
than 17 nor more than 30 days prior to the date fixed for redemption, shall mail
a notice ("Notice of Redemption") by first-class mail, postage prepaid, to each
Holder of shares of AMPS to be redeemed and to the Auction Agent.  The
Corporation shall cause the Notice of Redemption to 

                                       50
<PAGE>
 
also be published in the eastern and national editions of The Wall Street 
                                                          --------------- 
Journal. The Notice of Redemption shall set forth (i) the redemption date,
- -------                                                                 
(ii) the amount of the redemption price, (iii) the aggregate number of shares of
AMPS of such series to be redeemed, (iv) the place or places where shares of
AMPS of such series are to be surrendered for payment of the redemption price,
(v) a statement that dividends on the shares to be redeemed shall cease to
accumulate on such redemption date (except that holders may be entitled to
Additional Dividends) and (vi) the provision of these Articles Supplementary
pursuant to which such shares are being redeemed. No defect in the Notice of
Redemption or in the mailing or publication thereof shall affect the validity of
the redemption proceedings, except as required by applicable law.

     If the Notice of Redemption shall have been given as aforesaid and,
concurrently or thereafter, the Corporation shall have deposited in trust with
the Auction Agent, or segregated in an account at the Corporation's custodian
bank for the benefit of the Auction Agent, Deposit Securities (with a right of
substitution) having an aggregate Discounted Value (utilizing in the case of S&P
an S&P Exposure Period of 22 Business Days) equal to the redemption payment for
the shares of AMPS as to which such Notice of Redemption has been given with
irrevocable instructions and authority to pay the redemption price to the
Holders of such shares, then upon the date of such deposit or, if no such
deposit is made, then upon such date fixed for redemption (unless the
Corporation shall default in making the redemption payment), all rights of the
Holders of such shares as shareholders of the Corporation by reason of the
ownership of such shares will cease and terminate (except their right to receive
the redemption price in respect thereof and any Additional Dividends, but
without interest), and such shares shall no longer be deemed outstanding. The
Corporation shall be entitled to receive, from time to time, from the

                                       51
<PAGE>
 
Auction Agent the interest, if any, on such Deposit Securities deposited with it
and the Holders of any shares so redeemed shall have no claim to any of such
interest. In case the Holder of any shares so called for redemption shall not
claim the redemption payment for his shares within one year after the date of
redemption, the Auction Agent shall, upon demand, pay over to the Corporation
such amount remaining on deposit and the Auction Agent shall thereupon be
relieved of all responsibility to the Holder of such shares called for
redemption and such Holder thereafter shall look only to the Corporation for the
redemption payment.

     5.  Voting Rights.  (a)  General.  Except as otherwise provided in the
         -------------        -------                                      
Charter or By-Laws, each Holder of shares of AMPS shall be entitled to one vote
for each share held on each matter submitted to a vote of shareholders of the
Corporation, and the holders of outstanding shares of Preferred Stock, including
AMPS, and of shares of Common Stock shall vote together as a single class;
provided that, at any meeting of the shareholders of the Corporation held for
the election of directors, the holders of outstanding shares of Preferred Stock,
including AMPS, shall be entitled, as a class, to the exclusion of the holders
of all other securities and classes of capital stock of the Corporation, to
elect two directors of the Corporation. Subject to paragraph 5(b) hereof, the
holders of outstanding shares of capital stock of the Corporation, including the
holders of outstanding shares of Preferred Stock, including AMPS, voting as a
single class, shall elect the balance of the directors.

     (b) Right to Elect Majority of Board of Directors.  During any period in
         ---------------------------------------------                       
which any one or more of the conditions described below shall exist (such period
being referred to herein as a "Voting Period"), the number of directors
constituting the Board of Directors shall be automatically increased by the
smallest number that, when added to the two directors elected 

                                       52
<PAGE>
 
exclusively by the holders of shares of Preferred Stock, would constitute a
majority of the Board of Directors as so increased by such smallest number; and
the holders of shares of Preferred Stock shall be entitled, voting separately as
one class (to the exclusion of the holders of all other securities and classes
of capital stock of the Corporation), to elect such smallest number of
additional directors, together with the two directors that such holders are in
any event entitled to elect. A Voting Period shall commence:

          (i) if at any time accumulated dividends (whether or not earned or
declared, and whether or not funds are then legally available in an amount
sufficient therefor) on the outstanding shares of AMPS equal to at least two
full years' dividends shall be due and unpaid and sufficient cash or specified
securities shall not have been deposited with the Auction Agent for the payment
of such accumulated dividends; or

          (ii) if at any time holders of any other shares of Preferred Stock are
entitled to elect a majority of the directors of the Corporation under the 1940
Act.

     Upon the termination of a Voting Period, the voting rights described in
this paragraph 5(b) shall cease, subject always, however, to the reverting of
such voting rights in the Holders upon the further occurrence of any of the
events described in this paragraph 5(b).

     (c) Right to Vote with Respect to Certain Other Matters.  So long as any
         ---------------------------------------------------                 
shares of AMPS are outstanding, the Corporation shall not, without the
affirmative vote of the holders of a majority of the shares of Preferred Stock
Outstanding at the time, voting separately as one class:  (i) authorize, create
or issue any class or series of stock ranking prior to the AMPS or any other
series of Preferred Stock with respect to payment of dividends or the
distribution of assets on 

                                       53
<PAGE>
 
liquidation, or (ii) amend, alter or repeal the provisions of the Charter,
whether by merger, consolidation or otherwise, so as to adversely affect any of
the contract rights expressly set forth in the Charter of holders of shares of
AMPS or any other Preferred Stock. To the extent permitted under the 1940 Act,
in the event shares of more than one series of AMPS are outstanding, the
Corporation shall not approve any of the actions set forth in clause (i) or (ii)
which adversely affects the contract rights expressly set forth in the Charter
of a Holder of shares of a series of AMPS differently than those of a Holder of
shares of any other series of AMPS without the affirmative vote of the holders
of at least a majority of the shares of AMPS of each series adversely affected
and outstanding at such time (each such adversely affected series voting
separately as a class). The Corporation shall notify Moody's and S&P ten
Business Days prior to any such vote described in clause (i) or (ii). Unless a
higher percentage is provided for under the Charter, the affirmative vote of the
holders of a majority of the outstanding shares of Preferred Stock, including
AMPS, voting together as a single class, will be required to approve any plan of
reorganization (including bankruptcy proceedings) adversely affecting such
shares or any action requiring a vote of security holders under Section 13(a) of
the 1940 Act. The class vote of holders of shares of Preferred Stock, including
AMPS, described above will in each case be in addition to a separate vote of the
requisite percentage of shares of Common Stock and shares of Preferred Stock,
including AMPS, voting together as a single class necessary to authorize the
action in question.

     (d)  Voting Procedures.
          ----------------- 
          (i) As soon as practicable after the accrual of any right of the
holders of shares of Preferred Stock to elect additional directors as described
in paragraph 5(b) above, the 

                                       54
<PAGE>
 
Corporation shall call a special meeting of such holders and instruct the
Auction Agent to mail a notice of such special meeting to such holders, such
meeting to be held not less than 10 nor more than 20 days after the date of
mailing of such notice. If the Corporation fails to send such notice to the
Auction Agent or if the Corporation does not call such a special meeting, it may
be called by any such holder on like notice. The record date for determining the
holders entitled to notice of and to vote at such special meeting shall be the
close of business on the fifth Business Day preceding the day on which such
notice is mailed. At any such special meeting and at each meeting held during a
Voting Period, such Holders, voting together as a class (to the exclusion of the
holders of all other securities and classes of capital stock of the
Corporation), shall be entitled to elect the number of directors prescribed in
paragraph 5(b) above. At any such meeting or adjournment thereof in the absence
of a quorum, a majority of such holders present in person or by proxy shall have
the power to adjourn the meeting without notice, other than by an announcement
at the meeting, to a date not more than 120 days after the original record date.

          (ii)  For purposes of determining any rights of the Holders to vote on
any matter or the number of shares required to constitute a quorum, whether such
right is created by these Articles Supplementary, by the other provisions of the
Charter, by statute or otherwise, a share of AMPS which is not Outstanding shall
not be counted.

          (iii)  The terms of office of all persons who are directors of the
Corporation at the time of a special meeting of Holders and holders of other
Preferred Stock to elect directors shall continue, notwithstanding the election
at such meeting by the Holders and such other holders of the number of directors
that they are entitled to elect, and the persons so elected by the Holders and
such other holders, together with the two incumbent directors elected by the
Holders and 

                                       55
<PAGE>
 
such other holders of Preferred Stock and the remaining incumbent directors
elected by the holders of the Common Stock and Preferred Stock, shall constitute
the duly elected directors of the Corporation.

          (iv)  Simultaneously with the expiration of a Voting Period, the terms
of office of the additional directors elected by the Holders and holders of
other Preferred Stock pursuant to paragraph 5(b) above shall terminate, the
remaining directors shall constitute the directors of the Corporation and the
voting rights of the Holders and such other holders to elect additional
directors pursuant to paragraph 5(b) above shall cease, subject to the
provisions of the last sentence of paragraph 5(b).

     (e) Exclusive Remedy.  Unless otherwise required by law, the Holders of
         ----------------                                                   
shares of AMPS shall not have any rights or preferences other than those
specifically set forth herein.  The Holders of shares of AMPS shall have no
preemptive rights or rights to cumulative voting.  In the event that the
Corporation fails to pay any dividends on the shares of AMPS, the exclusive
remedy of the Holders shall be the right to vote for directors pursuant to the
provisions of this paragraph 5.

     (f)  Notification to S&P and Moody's.  In the event a vote of Holders of
          -------------------------------                                    
AMPS is required pursuant to the provisions of Section 13(a) of the 1940 Act,
the Corporation shall, not later than ten Business Days prior to the date on
which such vote is to be taken, notify S&P and Moody's that such vote is to be
taken and the nature of the action with respect to which such vote is to be
taken and, not later than ten Business Days after the date on which such vote is
taken, notify S&P and Moody's of the result of such vote.

                                       56
<PAGE>
 
     6.  1940 Act AMPS Asset Coverage.  The Corporation shall maintain, as of
         ----------------------------                                        
the last Business Day of each month in which any share of AMPS is outstanding,
the 1940 Act AMPS Asset Coverage.

     7.  AMPS Basic Maintenance Amount.  (a)  The Corporation shall maintain, on
         -----------------------------                                          
each Valuation Date, and shall verify to its satisfaction that it is maintaining
on such Valuation Date, (i) S&P Eligible Assets having an aggregate Discounted
Value equal to or greater than the AMPS Basic Maintenance Amount and (ii)
Moody's Eligible Assets having an aggregate Discounted Value equal to or greater
than the AMPS Basic Maintenance Amount.  Upon any failure to maintain the
required Discounted Value, the Corporation will use its best efforts to alter
the composition of its portfolio to reattain a Discounted Value at least equal
to the AMPS Basic Maintenance Amount on or prior to the AMPS Basic Maintenance
Cure Date.

     (b)  On or before 5:00 p.m., New York City time, on the third Business Day
after a Valuation Date on which the Corporation fails to satisfy the AMPS Basic
Maintenance Amount, the Corporation shall complete and deliver to the Auction
Agent, and Moody's and S&P, as the case may be, a complete AMPS Basic
Maintenance Report as of the date of such failure, which will be deemed to have
been delivered to the Auction Agent if the Auction Agent receives a copy or
telecopy, telex or other electronic transcription thereof and on the same day
the Corporation mails to the Auction Agent for delivery on the next Business Day
the complete AMPS Basic Maintenance Report.  The Corporation will deliver an
AMPS Basic Maintenance Report to the Auction Agent and Moody's and S&P, as the
case may be, on or before 5:00 p.m., New York City time, on the third Business
Day after a Valuation Date on which the Corporation cures its failure to
maintain Moody's Eligible Assets or S&P Eligible Assets, as the case may be,
with an 

                                       57
<PAGE>
 
aggregate Discounted Value equal to or greater than the AMPS Basic Maintenance
Amount or on which the Corporation fails to maintain Moody's Eligible Assets or
S&P Eligible Assets, as the case may be, with an aggregate Discounted Value
which exceeds the AMPS Basic Maintenance Amount by 5% or more. The Corporation
will also deliver an AMPS Basic Maintenance Report to the Auction Agent, Moody's
and S&P as of each Quarterly Valuation Date on or before the third Business Day
after such date. Additionally, on or before 5:00 p.m., New York City time, on
the third Business Day after the first day of a Special Dividend Period, the
Corporation will deliver an AMPS Basic Maintenance Report to S&P and the Auction
Agent. The Corporation shall also provide Moody's and S&P with an AMPS Basic
Maintenance Report when specifically requested by either Moody's or S&P. A
failure by the Corporation to deliver an AMPS Basic Maintenance Report under
this paragraph 7(b) shall be deemed to be delivery of an AMPS Basic Maintenance
Report indicating the Discounted Value for S&P Eligible Assets and Moody's
Eligible Assets of the Corporation is less than the AMPS Basic Maintenance
Amount, as of the relevant Valuation Date.

     (c) Within ten Business Days after the date of delivery of an AMPS Basic
Maintenance Report in accordance with paragraph 7(b) above relating to a
Quarterly Valuation Date, the Independent Accountant will confirm in writing to
the Auction Agent, S&P and Moody's (i) the mathematical accuracy of the
calculations reflected in such Report (and in any other AMPS Basic Maintenance
Report, randomly selected by the Independent Accountant, that was delivered by
the Corporation during the quarter ending on such Quarterly Valuation Date),
(ii) that, in such Report (and in such randomly selected Report), the
Corporation correctly determined the assets of the Corporation which constitute
S&P Eligible Assets or Moody's 

                                       58
<PAGE>
 
Eligible Assets, as the case may be, at such Quarterly Valuation Date in
accordance with these Articles Supplementary, (iii) that, in such Report (and in
such randomly selected Report), the Corporation determined whether the
Corporation had, at such Quarterly Valuation Date (and at the Valuation Date
addressed in such randomly selected Report) in accordance with these Articles
Supplementary, S&P Eligible Assets of an aggregate Discounted Value at least
equal to the AMPS Basic Maintenance Amount and Moody's Eligible Assets of an
aggregate Discounted Value at least equal to the AMPS Basic Maintenance Amount,
(iv) with respect to the S&P ratings on California Municipal Bonds or Municipal
Bonds, the issuer name, issue size and coupon rate listed in such Report, that
the Independent Accountant has requested that S&P verify such information and
the Independent Accountant shall provide a listing in its letter of any
differences, (v) with respect to the Moody's ratings on California Municipal
Bonds or Municipal Bonds, the issuer name, issue size and coupon rate listed in
such Report, that such information has been verified by Moody's (in the event
such information is not verified by Moody's, the Independent Accountant will
inquire of Moody's what such information is, and provide a listing in its letter
of any differences), (vi) with respect to the bid or mean price (or such
alternative permissible factor used in calculating the Market Value) provided by
the custodian of the Corporation's assets to the Corporation for purposes of
valuing securities in the Corporation's portfolio, the Independent Accountant
has traced the price used in such Report to the bid or mean price listed in such
Report as provided to the Corporation and verified that such information agrees
(in the event such information does not agree, the Independent Accountant will
provide a listing in its letter of such differences) and (vii) with respect to
such confirmation to Moody's, that the Corporation has satisfied the
requirements of paragraph 8(b) of these Articles Supplementary (such
confirmation is herein called the "Accountant's Confirmation").

                                       59
<PAGE>
 
     (d) Within ten Business Days after the date of delivery to the Auction
Agent, S&P and Moody's of an AMPS Basic Maintenance Report in accordance with
paragraph 7(b) above relating to any Valuation Date on which the Corporation
failed to maintain S&P Eligible Assets with an aggregate Discounted Value and
Moody's Eligible Assets with an aggregate Discounted Value equal to or greater
than the AMPS Basic Maintenance Amount, and relating to the AMPS Basic
Maintenance Cure Date with respect to such failure, the Independent Accountant
will provide to the Auction Agent, S&P and Moody's an Accountant's Confirmation
as to such AMPS Basic Maintenance Report.

     (e) If any Accountant's Confirmation delivered pursuant to subparagraph (c)
or (d) of this paragraph 7 shows that an error was made in the AMPS Basic
Maintenance Report for a particular Valuation Date for which such Accountant's
Confirmation as required to be delivered, or shows that a lower aggregate
Discounted Value for the aggregate of all S&P Eligible Assets or Moody's
Eligible Assets, as the case may be, of the Corporation was determined by the
Independent Accountant, the calculation or determination made by such
Independent Accountant shall be final and conclusive and shall be binding on the
Corporation, and the Corporation shall accordingly amend and deliver the AMPS
Basic Maintenance Report to the Auction Agent, S&P and Moody's promptly
following receipt by the Corporation of such Accountant's Confirmation.

     (f) On or before 5:00 p.m., New York City time, on the first Business Day
after the Date of Original Issue of the shares of AMPS, the Corporation will
complete and deliver to S&P and Moody's an AMPS Basic Maintenance Report as of
the close of business on such Date of Original Issue.  Within five Business Days
of such Date of Original Issue, the Independent Accountant will confirm in
writing to S&P and Moody's (i) the mathematical accuracy of the 

                                       60
<PAGE>
 
calculations reflected in such Report and (ii) that the aggregate Discounted
Value of S&P Eligible Assets and the aggregate Discounted Value of Moody's
Eligible Assets reflected thereon equals or exceeds the AMPS Basic Maintenance
Amount reflected thereon. Also, on or before 5:00 p.m., New York City time, on
the first Business Day after shares of Common Stock are repurchased by the
Corporation, the Corporation will complete and deliver to S&P and Moody's an
AMPS Basic Maintenance Report as of the close of business on such date that
Common Stock is repurchased.

     (g) For so long as shares of AMPS are rated by Moody's, in managing the
Corporation's portfolio, the Adviser will not alter the composition of the
Corporation's portfolio if, in the reasonable belief of the Adviser, the effect
of any such alteration would be to cause the Corporation to have Moody's
Eligible Assets with an aggregate Discounted Value, as of the immediately
preceding Valuation Date, less than the AMPS Basic Maintenance Amount as of such
Valuation Date; provided, however, that in the event that, as of the immediately
preceding Valuation Date, the aggregate Discounted Value of Moody's Eligible
Assets exceeded the AMPS Basic Maintenance Amount by five percent or less, the
Adviser will not alter the composition of the Corporation's portfolio in a
manner reasonably expected to reduce the aggregate Discounted Value of Moody's
Eligible Assets unless the Corporation shall have confirmed that, after giving
effect to such alteration, the aggregate Discounted Value of Moody's Eligible
Assets would exceed the AMPS Basic Maintenance Amount.

     8.  Certain Other Restrictions and Requirements.
         ------------------------------------------- 
     (a) For so long as any shares of AMPS are rated by S&P, the Corporation
will not purchase or sell futures contracts, write, purchase or sell options on
futures contracts or write put 

                                       61
<PAGE>
 
options (except covered put options) or call options (except covered call
options) on portfolio securities unless it receives written confirmation from
S&P that engaging in such transactions will not impair the ratings then assigned
to the shares of AMPS by S&P, except that the Corporation may purchase or sell
futures contracts based on the Bond Buyer Municipal Bond Index (the "Municipal
Index") or United States Treasury Bonds or Notes ("Treasury Bonds") and write,
purchase or sell put and call options on such contracts (collectively, "S&P
Hedging Transactions"), subject to the following limitations:

          (i) the Corporation will not engage in any S&P Hedging Transaction
based on the Municipal Index (other than transactions which terminate a futures
contract or option held by the Corporation by the Corporation's taking an
opposite position thereto ("Closing Transactions")), which would cause the
Corporation at the time of such transaction to own or have sold the least of (A)
more than 1,000 outstanding futures contracts based on the Municipal Index, (B)
outstanding futures contracts based on the Municipal Index exceeding in number
25% of the quotient of the Market Value of the Corporation's total assets
divided by $1,000 or (C) outstanding futures contracts based on the Municipal
Index exceeding in number 10% of the average number of daily traded futures
contracts based on the Municipal Index in the 30 days preceding the time of
effecting such transaction as reported by The Wall Street Journal;
                                          -----------------------               

          (ii) the Corporation will not engage in any S&P Hedging Transaction
based on Treasury Bonds (other than Closing Transactions) which would cause the
Corporation at the time of such transaction to own or have sold the lesser of
(A) outstanding futures contracts based on Treasury Bonds and on the Municipal
Index exceeding in number 25% of the quotient of the Market Value of the
Corporation's total assets divided by $100,000 ($200,000 in the case of the 

                                       62
<PAGE>
 
two-year United States Treasury Note) or (B) outstanding futures contracts based
on Treasury Bonds exceeding in number 10% of the average number of daily traded
futures contracts based on Treasury Bonds in the 30 days preceding the time of
effecting such transaction as reported by The Wall Street Journal;
                                          ----------------------- 

          (iii)  the Corporation will engage in Closing Transactions to close
out any outstanding futures contract which the Corporation owns or has sold or
any outstanding option thereon owned by the Corporation in the event (A) the
Corporation does not have S&P Eligible Assets with an aggregate Discounted Value
equal to or greater than the AMPS Basic Maintenance Amount on two consecutive
Valuation Dates and (B) the Corporation is required to pay Variation Margin on
the second such Valuation Date;

          (iv) the Corporation will engage in a Closing Transaction to close out
any outstanding futures contract or option thereon in the month prior to the
delivery month under the terms of such futures contract or option thereon unless
the Corporation holds the securities deliverable under such terms; and

          (v) when the Corporation writes a futures contract or option thereon,
it will either maintain an amount of cash, cash equivalents or high grade (rated
A or better by S&P), fixed-income securities in a segregated account with the
Corporation's custodian, so that the amount so segregated plus the amount of
Initial Margin and Variation Margin held in the account of or on behalf of the
Corporation's broker with respect to such futures contract or option equals the
Market Value of the futures contract or option, or, in the event the Corporation
writes a 

                                       63
<PAGE>
 
futures contract or option thereon which requires delivery of an underlying
security, it shall hold such underlying security in its portfolio.

     For purposes of determining whether the Corporation has S&P Eligible Assets
with a Discounted Value that equals or exceeds the AMPS Basic Maintenance
Amount, the Discounted Value of cash or securities held for the payment of
Initial Margin or Variation Margin shall be zero and the aggregate Discounted
Value of S&P Eligible Assets shall be reduced by an amount equal to (i) 30% of
the aggregate settlement value, as marked to market, of any outstanding futures
contracts based on the Municipal Index which are owned by the Corporation plus
(ii) 25% of the aggregate settlement value, as marked to market, of any
outstanding futures contracts based on Treasury Bonds which contracts are owned
by the Corporation.

     (b) For so long as any shares of AMPS are rated by Moody's, the Corporation
will not buy or sell futures contracts, write, purchase or sell call options on
futures contracts or purchase put options on futures contracts or write call
options (except covered call options) on portfolio securities unless it receives
written confirmation from Moody's that engaging in such transactions would not
impair the ratings then assigned to the shares of AMPS by Moody's, except that
the Corporation may purchase or sell exchange-traded futures contracts based on
the Municipal Index or Treasury Bonds and purchase, write or sell exchange-
traded put options on such futures contracts and purchase, write or sell
exchange-traded call options on such futures contracts (collectively, "Moody's
Hedging Transactions"), subject to the following limitations:

          (i) the Corporation will not engage in any Moody's Hedging Transaction
based on the Municipal Index (other than Closing Transactions) which would cause
the 

                                       64
<PAGE>
 
Corporation at the time of such transaction to own or have sold (A) outstanding
futures contracts based on the Municipal Index exceeding in number 10% of the
average number of daily traded futures contracts based on the Municipal Index in
the 30 days preceding the time of effecting such transaction as reported by
The Wall Street Journal or (B) outstanding futures contracts based on the
- -----------------------                                                     
Municipal Index having a Market Value exceeding 50% of the Market Value of all
Municipal Bonds constituting Moody's Eligible Assets owned by the Corporation
(other than Moody's Eligible Assets already subject to a Moody's Hedging
Transaction);

          (ii) the Corporation will not engage in any Moody's Hedging
Transaction based on Treasury Bonds (other than Closing Transactions) which
would cause the Corporation at the time of such transaction to own or have sold
(A) outstanding futures contracts based on Treasury Bonds having an aggregate
Market Value exceeding 20% of the aggregate Market Value of Moody's Eligible
Assets owned by the Corporation and rated Aa by Moody's (or, if not rated by
Moody's but rated by S&P, rated AAA by S&P) or (B) outstanding futures contracts
based on Treasury Bonds having an aggregate Market Value exceeding 40% of the
aggregate Market Value of all Municipal Bonds constituting Moody's Eligible
Assets owned by the Corporation (other than Moody's Eligible Assets already
subject to a Moody's Hedging Transaction) and rated Baa or A by Moody's (or, if
not rated by Moody's but rated by S&P, rated A or AA by S&P) (for purposes of
the foregoing clauses (i) and (ii), the Corporation shall be deemed to own the
number of futures contracts that underlie any outstanding options written by the
Corporation);

                                       65
<PAGE>
 
          (iii)  the Corporation will engage in Closing Transactions to close
out any outstanding futures contract based on the Municipal Index if the amount
of open interest in the Municipal Index as reported by The Wall Street Journal
                                                       -----------------------
is less than 5,000;

          (iv) the Corporation will engage in a Closing Transaction to close out
any outstanding futures contract by no later than the fifth Business Day of the
month in which such contract expires and will engage in a Closing Transaction to
close out any outstanding option on a futures contract by no later than the
first Business Day of the month in which such option expires;

          (v) the Corporation will engage in Moody's Hedging Transactions only
with respect to futures contracts or options thereon having the next settlement
date or the settlement date immediately thereafter;

          (vi) the Corporation will not engage in options and futures
transactions for leveraging or speculative purposes and will not write any call
options or sell any futures contracts for the purpose of hedging the anticipated
purchase of an asset prior to completion of such purchase; and

          (vii)  the Corporation will not enter into an option or futures
transaction unless, after giving effect thereto, the Corporation would continue
to have Moody's Eligible Assets with an aggregate Discounted Value equal to or
greater than the AMPS Basic Maintenance Amount.

     For purposes of determining whether the Corporation has Moody's Eligible
Assets with an aggregate Discounted Value that equals or exceeds the AMPS Basic
Maintenance Amount, 

                                       66
<PAGE>
 
the Discounted Value of Moody's Eligible Assets which the Corporation is
obligated to deliver or receive pursuant to an outstanding futures contract or
option shall be as follows: (i) assets subject to call options written by the
Corporation which are either exchange-traded and "readily reversible" or which
expire within 49 days after the date as of which such valuation is made shall be
valued at the lesser of (a) Discounted Value and (b) the exercise price of the
call option written by the Corporation; (ii) assets subject to call options
written by the Corporation not meeting the requirements of clause (i) of this
sentence shall have no value; (iii) assets subject to put options written by the
Corporation shall be valued at the lesser of (A) the exercise price and (B) the
Discounted Value of the subject security; (iv) futures contracts shall be valued
at the lesser of (A) settlement price and (B) the Discounted Value of the
subject security, provided that, if a contract matures within 49 days after the
date as of which such valuation is made, where the Corporation is the seller the
contract may be valued at the settlement price and where the Corporation is the
buyer the contract may be valued at the Discounted Value of the subject
securities; and (v) where delivery may be made to the Corporation with any
security of a class of securities, the Corporation shall assume that it will
take delivery of the security with the lowest Discounted Value.

     For purposes of determining whether the Corporation has Moody's Eligible
Assets with an aggregate Discounted Value that equals or exceeds the AMPS Basic
Maintenance Amount, the following amounts shall be subtracted from the aggregate
Discounted Value of the Moody's Eligible Assets held by the Corporation:  (i)
10% of the exercise price of a written call option; (ii) the exercise price of
any written put option; (iii) where the Corporation is the seller under a
futures contract, 10% of the settlement price of the futures contract; (iv)
where the Corporation is 

                                       67
<PAGE>
 
the purchaser under a futures contract, the settlement price of assets purchased
under such futures contract; (v) the settlement price of the underlying futures
contract if the Corporation writes put options on a futures contract; and (vi)
105% of the Market Value of the underlying futures contracts if the Corporation
writes call options on a futures contract and does not own the underlying
contract.

     (c) For so long as any shares of AMPS are rated by Moody's, the Corporation
will not enter into any contract to purchase securities for a fixed price at a
future date beyond customary settlement time (other than such contracts that
constitute Moody's Hedging Transactions that are permitted under paragraph 8(b)
of these Articles Supplementary), except that the Corporation  may enter into
such contracts to purchase newly-issued securities on the date such securities
are issued ("Forward Commitments"), subject to the following limitations:

          (i) the Corporation will maintain in a segregated account with its
custodian cash, cash equivalents or short-term, fixed-income securities rated P-
1, MIG-1 or VMIG-1 by Moody's and maturing prior to the date of the Forward
Commitment with a Market Value that equals or exceeds the amount of the
Corporation's obligations under any Forward Commitments to which it is from time
to time a party or long-term fixed income securities with a Discounted Value
that equals or exceeds the amount of the Corporation's obligations under any
Forward Commitment to which it is from time to time a party; and

          (ii) the Corporation will not enter into a Forward Commitment unless,
after giving effect thereto, the Corporation would continue to have Moody's
Eligible Assets with an aggregate Discounted Value equal to or greater than the
AMPS Basic Maintenance Amount.

                                       68
<PAGE>
 
     For purposes of determining whether the Corporation has Moody's Eligible
Assets with an aggregate Discounted Value that equals or exceeds the AMPS Basic
Maintenance Amount, the Discounted Value of all Forward Commitments to which the
Corporation is a party and of all securities deliverable to the Corporation
pursuant to such Forward Commitments shall be zero.

          (d) For so long as shares of AMPS are rated by S&P or Moody's, the
Corporation will not, unless it has received written confirmation from S&P
and/or Moody's, as the case may be, that such action would not impair the
ratings then assigned to shares of AMPS by S&P and/or Moody's, as the case may
be, (i) borrow money except for the purpose of clearing transactions in
portfolio securities (which borrowings shall under any circumstances be limited
to the lesser of $10 million and an amount equal to 5% of the Market Value of
the Corporation's assets at the time of such borrowings and which borrowings
shall be repaid within 60 days and not be extended or renewed and shall not
cause the aggregate Discounted Value of Moody's Eligible Assets and S&P Eligible
Assets to be less than the AMPS Basic Maintenance Amount), (ii) engage in short
sales of securities, (iii) lend any securities, (iv) issue any class or series
of stock ranking prior to or on a parity with the AMPS with respect to the
payment of dividends or the distribution of assets upon dissolution, liquidation
or winding up of the Corporation, (v) reissue any AMPS previously purchased or
redeemed by the Corporation, (vi) merge or consolidate into or with any other
corporation or entity, (vii) change the Pricing Service or (viii) engage in
reverse repurchase agreements.

     9.  Notice.  All notices or communications, unless otherwise specified in
         ------                                                               
the By-Laws of the Corporation or these Articles Supplementary, shall be
sufficiently given if in writing and delivered in person or mailed by first-
class mail, postage prepaid.  Notice shall be 

                                       69
<PAGE>
 
deemed given on the earlier of the date received or the date seven days after
which such notice is mailed.

     10.  Auction Procedures.  (a)  Certain definitions.  As used in this
          ------------------        -------------------                  
paragraph 10, the following terms shall have the following meanings, unless the
context otherwise requires:

          (i) "AMPS" means the shares of AMPS being auctioned pursuant to this
paragraph 10.

          (ii) "Auction Date" means the first Business Day preceding the first
day of a Dividend Period.

          (iii)  "Available AMPS" has the meaning specified in paragraph
10(d)(i) below.

          (iv)  "Bid" has the meaning specified in paragraph 10(b)(i) below.

          (v)  "Bidder" has the meaning specified in paragraph 10(b)(i) below.

          (vi)  "Hold Order" has the meaning specified in paragraph 10(b)(i)
below.

          (vii)  "Maximum Applicable Rate" for any Dividend Period will be the
Applicable Percentage of the Reference Rate.  The Applicable Percentage will be
determined based on (i) the lower of the credit rating or ratings assigned on
such date to such shares by Moody's and S&P (or if Moody's or S&P or both shall
not make such rating available, the equivalent of either or both of such ratings
by a Substitute Rating Agency or two Substitute Rating Agencies or, in the event
that only one such rating shall be available, such rating) and (ii) whether the
Corporation has provided notification to the Auction Agent prior to the Auction

                                       70
<PAGE>
 
establishing the Applicable Rate for any dividend pursuant to paragraph 2(f)
hereof that net capital gains or other taxable income will be included in such
dividend on shares of AMPS as follows:

<TABLE>
<CAPTION>
                Credit Ratings                    Applicable Percentage     Applicable Percentage
                --------------                     of Reference Rate -       of Reference Rate -
      Moody's                     S&P                No Notification             Notification
- ----------------------      --------------           ---------------             ------------
<S>                          <C>                      <C>                       <C>
"aa3" or higher              AA- or higher                110%                      150%
"a3"  to "a1"                A-  to A+                    125%                      160%
"baa3" to "baa1"             BBB- to BBB+                 150%                      250%
Below "baa3"                 Below BBB-                   200%                      275%
</TABLE>

     The Corporation shall take all reasonable action necessary to enable S&P
and Moody's to provide a rating for each series of the AMPS.  If either S&P or
Moody's shall not make such a rating available, or neither S&P nor Moody's shall
make such a rating available, Merrill Lynch, Pierce, Fenner & Smith Incorporated
or its affiliates and successors, after consultation with the Corporation, shall
select a nationally recognized statistical rating organization or two nationally
recognized statistical rating organizations to act as a Substitute Rating Agency
or Substitute Rating Agencies, as the case may be.

          (viii)  "Order" has the meaning specified in paragraph 10(b)(i) below.

          (ix)  "Sell Order" has the meaning specified in paragraph 10(b)(i)
below.

          (x)  "Submission Deadline" means 1:00 P.M., New York City time, on any
Auction Date or such other time on any Auction Date as may be specified by the
Auction Agent from time to time as the time by which each Broker-Dealer must
submit to the Auction Agent in writing all Orders obtained by it for the Auction
to be conducted on such Auction Date.

                                       71
<PAGE>
 
          (xi) "Submitted Bid" has the meaning specified in paragraph 10(d)(i)
below.

          (xii)  "Submitted Hold Order" has the meaning specified in paragraph
10(d)(i) below.

          (xiii)  "Submitted Order" has the meaning specified in paragraph
10(d)(i) below.

          (xiv)  "Submitted Sell Order" has the meaning specified in paragraph
10(d)(i) below.

          (xv)  "Sufficient Clearing Bids" has the meaning specified in
paragraph 10(d)(i) below.

          (xvi)  "Winning Bid Rate" has the meaning specified in paragraph
10(d)(i) below.

     (b)  Orders by Beneficial Owners, Potential Beneficial Owners, Existing
Holders and Potential Holders.

          (i)  Unless otherwise permitted by the Corporation, Beneficial Owners
and Potential Beneficial Owners may only participate in Auctions through their
Broker-Dealers.  Broker-Dealers will submit the Orders of their respective
customers who are Beneficial Owners and Potential Beneficial Owners to the
Auction Agent, designating themselves as Existing Holders in respect of shares
subject to Orders submitted or deemed submitted to them by Beneficial Owners and
as Potential Holders in respect of shares subject to Orders submitted to them by
Potential Beneficial Owners.  A Broker-Dealer may also hold shares of AMPS in
its own account as a Beneficial Owner.  A Broker-Dealer may thus submit Orders
to the Auction Agent as a Beneficial Owner or a Potential Beneficial Owner and
therefore participate in an 

                                       72
<PAGE>
 
Auction as an Existing Holder or Potential Holder on behalf of both itself and
its customers. On or prior to the Submission Deadline on each Auction Date:

          (A)  each Beneficial Owner may submit to its Broker-Dealer information
          as to:

               (1)  the number of Outstanding shares, if any, of AMPS held by
          such Beneficial Owner which such Beneficial Owner desires to continue
          to hold without regard to the Applicable Rate for the next succeeding
          Dividend Period;

               (2)  the number of Outstanding shares, if any, of AMPS held by
          such Beneficial Owner which such Beneficial Owner desires to continue
          to hold, provided that the Applicable Rate for the next succeeding
          Dividend Period shall not be less than the rate per annum specified by
          such Beneficial Owner; and/or

               (3)  the number of Outstanding shares, if any, of AMPS held by
          such Beneficial Owner which such Beneficial Owner offers to sell
          without regard to the Applicable Rate for the next succeeding Dividend
          Period; and (B) each Broker-Dealer, using a list of Potential
          Beneficial Owners that shall be maintained in good faith for the
          purpose of conducting a competitive Auction, shall contact Potential
          Beneficial Owners, including Persons that are not Beneficial Owners,
          on such list to determine the number of Outstanding shares, if any, of
          AMPS which each such Potential Beneficial Owner offers to purchase,
          provided that the Applicable Rate for the next succeeding Dividend
          Period shall not be less than the rate per annum specified by such
          Potential Beneficial Owner.

                                       73
<PAGE>
 
     For the purposes hereof, the communication by a Beneficial Owner or
Potential Beneficial Owner to a Broker-Dealer, or the communication by a Broker-
Dealer acting for its own account to the Auction Agent, of information referred
to in clause (A) or (B) of this paragraph 10(b)(i) is hereinafter referred to as
an "Order" and each Beneficial Owner and each Potential Beneficial Owner placing
an Order, including a Broker-Dealer acting in such capacity for its own account,
is hereinafter referred to as a "Bidder"; an Order containing the information
referred to in clause (A)(1) of this paragraph 10(b)(i) is hereinafter referred
to as a "Hold Order"; an Order containing the information referred to in clause
(A)(2) or (B) of this paragraph 10(b)(i) is hereinafter referred to as a "Bid";
and an Order containing the information referred to in clause (A)(3) of this
paragraph 10(b)(i) is hereinafter referred to as a "Sell Order". Inasmuch as a
Broker-Dealer participates in an Auction as an Existing Holder or a Potential
Holder only to represent the interests of a Beneficial Owner or Potential
Beneficial Owner, whether it be its customers or itself, all discussion herein
relating to the consequences of an Auction for Existing Holders and Potential
Holders also applies to the underlying beneficial ownership interests
represented.

          (ii) (A) A Bid by an Existing Holder shall constitute an irrevocable
offer to sell:

          (1)  the number of Outstanding shares of AMPS specified in such Bid if
          the Applicable Rate determined on such Auction Date shall be less than
          the rate per annum specified in such Bid; or

                                       74
<PAGE>
 
          (2)  such number or a lesser number of Outstanding shares of AMPS to
          be determined as set forth in paragraph 10(e)(i)(D) if the Applicable
          Rate determined on such Auction Date shall be equal to the rate per
          annum specified therein; or

          (3)  a lesser number of Outstanding shares of AMPS to be determined as
          set forth in paragraph 10(e)(ii)(C) if such specified rate per annum
          shall be higher than the Maximum Applicable Rate and Sufficient
          Clearing Bids do not exist.

          (B)  A Sell Order by an Existing Holder shall constitute an
          irrevocable offer to sell:

               (1)  the number of Outstanding shares of AMPS specified in such
          Sell Order; or

               (2)  such number or a lesser number of Outstanding shares of AMPS
          to be determined as set forth in paragraph 10(e)(ii)(C) if Sufficient
          Clearing Bids do not exist.

          (C)  A Bid by a Potential Holder shall constitute an irrevocable offer
          to purchase:

               (1)  the number of Outstanding shares of AMPS specified in such
          Bid if the Applicable Rate determined on such Auction Date shall be
          higher than the rate per annum specified in such Bid; or

               (2)  such number or a lesser number of Outstanding shares of AMPS
          to be determined as set forth in paragraph 10(e)(i)(E) if the
          Applicable Rate determined on such Auction Date shall be equal to the
          rate per annum specified therein.

                                       75
<PAGE>
 
     (c)  Submission of Orders by Broker-Dealers to Auction Agent.


          (i)  Each Broker-Dealer shall submit in writing or through the Auction
Agent's Auction Processing System to the Auction Agent prior to the Submission
Deadline on each Auction Date all Orders obtained by such Broker-Dealer,
designating itself (unless otherwise permitted by the Corporation) as an
Existing Holder in respect of shares subject to Orders submitted or deemed
submitted to it by Beneficial Owners and as a Potential Holder in respect of
shares subject to Orders submitted to it by Potential Beneficial Owners, and
specifying with respect to each Order:

          (A)  the name of the Bidder placing such Order (which shall be the
Broker-Dealer unless otherwise permitted by the Corporation);

          (B)  the aggregate number of Outstanding shares of AMPS that are the
          subject of such Order;

          (C)  to the extent that such Bidder is an Existing Holder:

               (1)  the number of Outstanding shares, if any, of AMPS subject to
          any Hold Order placed by such Existing Holder;

               (2)  the number of Outstanding shares, if any, of AMPS subject to
          any Bid placed by such Existing Holder and the rate per annum
          specified in such Bid; and

               (3)  the number of Outstanding shares, if any, of AMPS subject to
          any Sell Order placed by such Existing Holder; and

                                       76
<PAGE>
 
          (D)  to the extent such Bidder is a Potential Holder, the rate per
          annum specified in such Potential Holder's Bid.

          (ii)  If any rate per annum specified in any Bid contains more than
three figures to the right of the decimal point, the Auction Agent shall round
such rate up to the next highest one-thousandth (.001) of 1%.

          (iii)  If an Order or Orders covering all of the Outstanding shares of
AMPS held by an Existing Holder are not submitted to the Auction Agent prior to
the Submission Deadline, the Auction Agent shall deem a Hold Order (in the case
of an Auction relating to a Dividend Period which is not a Special Dividend
Period) and a Sell Order (in the case of an Auction relating to a Special
Dividend Period) to have been submitted on behalf of such Existing Holder
covering the number of Outstanding shares of AMPS held by such Existing Holder
and not subject to Orders submitted to the Auction Agent.

          (iv)  If one or more Orders on behalf of an Existing Holder covering
in the aggregate more than the number of Outstanding shares of AMPS held by such
Existing Holder are submitted to the Auction Agent, such Order shall be
considered valid as follows and in the following order of priority:

          (A)  any Hold Order submitted on behalf of such Existing Holder shall
          be considered valid up to and including the number of Outstanding
          shares of AMPS held by such Existing Holder; provided that if more
          than one Hold Order is submitted on behalf of such Existing Holder and
          the number of shares of AMPS subject to such Hold Orders exceeds the
          number of Outstanding shares of AMPS 

                                       77
<PAGE>
 
          held by such Existing Holder, the number of shares of AMPS subject to
          each of such Hold Orders shall be reduced pro rata so that such Hold
          Orders, in the aggregate, will cover exactly the number of Outstanding
          shares of AMPS held by such Existing Holder;

          (B)  any Bids submitted on behalf of such Existing Holder shall be
          considered valid, in the ascending order of their respective rates per
          annum if more than one Bid is submitted on behalf of such Existing
          Holder, up to and including the excess of the number of Outstanding
          shares of AMPS held by such Existing Holder over the number of shares
          of AMPS subject to any Hold Order referred to in paragraph
          10(c)(iv)(A) above (and if more than one Bid submitted on behalf of
          such Existing Holder specifies the same rate per annum and together
          they cover more than the remaining number of shares that can be the
          subject of valid Bids after application of paragraph 10(c)(iv)(A)
          above and of the foregoing portion of this paragraph 10(c)(iv)(B) to
          any Bid or Bids specifying a lower rate or rates per annum, the number
          of shares subject to each of such Bids shall be reduced pro rata so
          that such Bids, in the aggregate, cover exactly such remaining number
          of shares); and the number of shares, if any, subject to Bids not
          valid under this paragraph 10(c)(iv)(B) shall be treated as the
          subject of a Bid by a Potential Holder; and

          (C)  any Sell Order shall be considered valid up to and including the
          excess of the number of Outstanding shares of AMPS held by such
          Existing Holder over the number of shares of AMPS subject to Hold
          Orders referred to in paragraph

                                       78
<PAGE>
 
          10(c)(iv)(A) and Bids referred to in paragraph 10(c)(iv)(B); provided
          that if more than one Sell Order is submitted on behalf of any
          Existing Holder and the number of shares of AMPS subject to such Sell
          Orders is greater than such excess, the number of shares of AMPS
          subject to each of such Sell Orders shall be reduced pro rata so that
          such Sell Orders, in the aggregate, cover exactly the number of shares
          of AMPS equal to such excess.

          (v)  If more than one Bid is submitted on behalf of any Potential
Holder, each Bid submitted shall be a separate Bid with the rate per annum and
number of shares of AMPS therein specified.

          (vi)  Any Order submitted by a Beneficial Owner as a Potential
Beneficial Owner to its Broker-Dealer, or by a Broker-Dealer to the Auction
Agent, prior to the Submission Deadline on any Auction Date shall be
irrevocable.

     (d)  Determination of Sufficient Clearing Bids, Winning Bid Rate and
          ---------------------------------------------------------------
Applicable Rate.
- --------------- 

          (i)  Not earlier than the Submission Deadline on each Auction Date,
the Auction Agent shall assemble all Orders submitted or deemed submitted to it
by the Broker-Dealers (each such Order as submitted or deemed submitted by a
Broker-Dealer being hereinafter referred to individually as a "Submitted Hold
Order", a "Submitted Bid" or a "Submitted Sell Order", as the case may be, or as
a "Submitted Order") and shall determine:

                                       79
<PAGE>
 
          (A)  the excess of the total number of Outstanding shares of AMPS over
          the number of Outstanding shares of AMPS that are the subject of
          Submitted Hold Orders (such excess being hereinafter referred to as
          the "Available AMPS");

          (B) from the Submitted Orders whether the number of Outstanding shares
          of AMPS that are the subject of Submitted Bids by Potential Holders
          specifying one or more rates per annum equal to or lower than the
          Maximum Applicable Rate exceeds or is equal to the sum of:

               (1) the number of Outstanding shares of AMPS that are the subject
          of Submitted Bids by Existing Holders specifying one or more rates per
          annum higher than the Maximum Applicable Rate, and

               (2)  the number of Outstanding shares of AMPS that are subject to
          Submitted Sell Orders (if such excess or such equality exists (other
          than because the number of Outstanding shares of AMPS in clause (1)
          above and this clause (2) are each zero because all of the Outstanding
          shares of AMPS are the subject of Submitted Hold Orders), such
          Submitted Bids by Potential Holders being hereinafter referred to
          collectively as "Sufficient Clearing Bids"); and
          (C)  if Sufficient Clearing Bids exist, the lowest rate per annum
          specified in the Submitted Bids (the "Winning Bid Rate") that if:

               (1)  each Submitted Bid from Existing Holders specifying the
          Winning Bid Rate and all other Submitted Bids from Existing Holders
          specifying lower 

                                       80
<PAGE>
 
          rates per annum were rejected, thus entitling such Existing Holders to
          continue to hold the shares of AMPS that are the subject of such
          Submitted Bids, and

               (2)  each Submitted Bid from Potential Holders specifying the
          Winning Bid Rate and all other Submitted Bids from Potential Holders
          specifying lower rates per annum were accepted, thus entitling the
          Potential Holders to purchase the shares of AMPS that are the subject
          of such Submitted Bids, would result in the number of shares subject
          to all Submitted Bids specifying the Winning Bid Rate or a lower rate
          per annum being at least equal to the Available AMPS.

          (ii)  Promptly after the Auction Agent has made the determinations
pursuant to paragraph 10(d)(i), the Auction Agent shall advise the Corporation
of the Maximum Applicable Rate and, based on such determinations, the Applicable
Rate for the next succeeding Dividend Period as follows:

          (A)  if Sufficient Clearing Bids exist, that the Applicable Rate for
          the next succeeding Dividend Period shall be equal to the Winning Bid
          Rate;

          (B)  if Sufficient Clearing Bids do not exist (other than because all
          of the Outstanding shares of AMPS are the subject of Submitted Hold
          Orders), that the Applicable Rate for the next succeeding Dividend
          Period shall be equal to the Maximum Applicable Rate; or

          (C)  if all of the Outstanding shares of AMPS are the subject of
          Submitted Hold Orders, that the Dividend Period next succeeding the
          Auction shall automatically 

                                       81
<PAGE>
 
          be the same length as the immediately preceding Dividend Period and
          the Applicable Rate for the next succeeding Dividend Period shall be
          equal to 40% of the Reference Rate (or 60% of such rate if the
          Corporation has provided notification to the Auction Agent prior to
          the Auction establishing the Applicable Rate for any dividend pursuant
          to paragraph 2(f) hereof that net capital gains or other taxable
          income will be included in such dividend on shares of AMPS) on the
          date of the Auction.

     (e)  Acceptance and Rejection of Submitted Bids and Submitted Sell Orders
          --------------------------------------------------------------------
and Allocation of Shares.  Based on the determinations made pursuant to
- ------------------------                                               
paragraph 10(d)(i), the Submitted Bids and Submitted Sell Orders shall be
accepted or rejected and the Auction Agent shall take such other action as set
forth below:

          (i)  If Sufficient Clearing Bids have been made, subject to the
provisions of paragraph 10(e)(iii) and paragraph 10(e)(iv), Submitted Bids and
Submitted Sell Orders shall be accepted or rejected in the following order of
priority and all other Submitted Bids shall be rejected:

          (A)  the Submitted Sell Orders of Existing Holders shall be accepted
          and the Submitted Bid of each of the Existing Holders specifying any
          rate per annum that is higher than the Winning Bid Rate shall be
          accepted, thus requiring each such Existing Holder to sell the
          Outstanding shares of AMPS that are the subject of such Submitted Sell
          Order or Submitted Bid;

                                       82
<PAGE>
 
          (B)  the Submitted Bid of each of the Existing Holders specifying any
          rate per annum that is lower than the Winning Bid Rate shall be
          rejected, thus entitling each such Existing Holder to continue to hold
          the Outstanding shares of AMPS that are the subject of such Submitted
          Bid;

          (C)  the Submitted Bid of each of the Potential Holders specifying any
          rate per annum that is lower than the Winning Bid Rate shall be
          accepted;

          (D)  the Submitted Bid of each of the Existing Holders specifying a
          rate per annum that is equal to the Winning Bid Rate shall be
          rejected, thus entitling each such Existing Holder to continue to hold
          the Outstanding shares of AMPS that are the subject of such Submitted
          Bid, unless the number of Outstanding shares of AMPS subject to all
          such Submitted Bids shall be greater than the number of Outstanding
          shares of AMPS ("Remaining Shares") equal to the excess of the
          Available AMPS over the number of Outstanding shares of AMPS subject
          to Submitted Bids described in paragraph 10(e)(i)(B) and paragraph
          10(e)(i)(C), in which event the Submitted Bids of each such Existing
          Holder shall be accepted, and each such Existing Holder shall be
          required to sell Outstanding shares of AMPS, but only in an amount
          equal to the difference between (1) the number of Outstanding shares
          of AMPS then held by such Existing Holder subject to such Submitted
          Bid and (2) the number of shares of AMPS obtained by multiplying (x)
          the number of Remaining Shares by (y) a fraction the numerator of
          which shall be the number of Outstanding shares of AMPS held by such
          Existing Holder subject to such Submitted Bid and the denominator of
          which shall be the sum of the


                                       83
<PAGE>
 
          number of Outstanding shares of AMPS subject to such Submitted Bids
          made by all such Existing Holders that specified a rate per annum
          equal to the Winning Bid Rate; and

          (E)  the Submitted Bid of each of the Potential Holders specifying a
          rate per annum that is equal to the Winning Bid Rate shall be accepted
          but only in an amount equal to the number of Outstanding shares of
          AMPS obtained by multiplying (x) the difference between the Available
          AMPS and the number of Outstanding shares of AMPS subject to Submitted
          Bids described in paragraph 10(e)(i)(B), paragraph 10(e)(i)(C) and
          paragraph 10(e)(i)(D) by (y) a fraction the numerator of which shall
          be the number of Outstanding shares of AMPS subject to such Submitted
          Bid and the denominator of which shall be the sum of the number of
          Outstanding shares of AMPS subject to such Submitted Bids made by all
          such Potential Holders that specified rates per annum equal to the
          Winning Bid Rate.

          (ii) If Sufficient Clearing Bids have not been made (other than
because all of the Outstanding shares of AMPS are subject to Submitted Hold
Orders), subject to the provisions of paragraph 10(e)(iii), Submitted Orders
shall be accepted or rejected as follows in the following order of priority and
all other Submitted Bids shall be rejected:

          (A) the Submitted Bid of each Existing Holder specifying any rate per
          annum that is equal to or lower than the Maximum Applicable Rate shall
          be rejected, thus 

                                       84
<PAGE>
 
          entitling such Existing Holder to continue to hold the Outstanding
          shares of AMPS that are the subject of such Submitted Bid;

          (B)  the Submitted Bid of each Potential Holder specifying any rate
          per annum that is equal to or lower than the Maximum Applicable Rate
          shall be accepted, thus requiring such Potential Holder to purchase
          the Outstanding shares of AMPS that are the subject of such Submitted
          Bid; and

          (C)  the Submitted Bids of each Existing Holder specifying any rate
          per annum that is higher than the Maximum Applicable Rate shall be
          accepted and the Submitted Sell Orders of each Existing Holder shall
          be accepted, in both cases only in an amount equal to the difference
          between (1) the number of Outstanding shares of AMPS then held by such
          Existing Holder subject to such Submitted Bid or Submitted Sell Order
          and (2) the number of shares of AMPS obtained by multiplying (x) the
          difference between the Available AMPS and the aggregate number of
          Outstanding shares of AMPS subject to Submitted Bids described in
          paragraph 10(e)(ii)(A) and paragraph 10(e)(ii)(B) by (y) a fraction
          the numerator of which shall be the number of Outstanding shares of
          AMPS held by such Existing Holder subject to such Submitted Bid or
          Submitted Sell Order and the denominator of which shall be the number
          of Outstanding shares of AMPS subject to all such Submitted Bids and
          Submitted Sell Orders.

          (iii)  If, as a result of the procedures described in paragraph
10(e)(i) or paragraph 10(e)(ii), any Existing Holder would be entitled or
required to sell, or any Potential Holder 

                                       85
<PAGE>
 
would be entitled or required to purchase, a fraction of a share of AMPS on any
Auction Date, the Auction Agent shall, in such manner as in its sole discretion
it shall determine, round up or down the number of shares of AMPS to be
purchased or sold by any Existing Holder or Potential Holder on such Auction
Date so that each Outstanding share of AMPS purchased or sold by each Existing
Holder or Potential Holder on such Auction Date shall be a whole share of AMPS.

          (iv) If, as a result of the procedures described in paragraph
10(e)(i), any Potential Holder would be entitled or required to purchase less
than a whole share of AMPS on any Auction Date, the Auction Agent shall, in such
manner as in its sole discretion it shall determine, allocate shares of AMPS for
purchase among Potential Holders so that only whole shares of AMPS are purchased
on such Auction Date by any Potential Holder, even if such allocation results in
one or more of such Potential Holders not purchasing any shares of AMPS on such
Auction Date.

          (v)  Based on the results of each Auction, the Auction Agent shall
determine, with respect to each Broker-Dealer that submitted Bids or Sell Orders
on behalf of Existing Holders or Potential Holders, the aggregate number of
Outstanding shares of AMPS to be purchased and the aggregate number of the
Outstanding shares of AMPS to be sold by such Potential Holders and Existing
Holders and, to the extent that such aggregate number of Outstanding shares to
be purchased and such aggregate number of Outstanding shares to be sold differ,
the Auction Agent shall determine to which other Broker-Dealer or Broker-Dealers
acting for one or more purchasers such Broker-Dealer shall deliver, or from
which other Broker-Dealer or Broker-Dealers acting for one or more sellers such
Broker-Dealer shall receive, as the case may be, Outstanding shares of AMPS.

                                       86
<PAGE>
 
     (f)  Miscellaneous.  The Corporation may interpret the provisions of this
          -------------                                                       
paragraph 10 to resolve any inconsistency or ambiguity, remedy any formal defect
or make any other change or modification that does not substantially adversely
affect the rights of Beneficial Owners of AMPS.  A Beneficial Owner or an
Existing Holder (A) may sell, transfer or otherwise dispose of shares of AMPS
only pursuant to a Bid or Sell Order in accordance with the procedures described
in this paragraph 10 or to or through a Broker-Dealer, provided that in the case
of all transfers other than pursuant to Auctions such Beneficial Owner or
Existing Holder, its Broker-Dealer, if applicable, or its Agent Member advises
the Auction Agent of such transfer and (B) except as otherwise required by law,
shall have the ownership of the shares of AMPS held by it maintained in book
entry form by the Securities Depository in the account of its Agent Member,
which in turn will maintain records of such Beneficial Owner's beneficial
ownership. Neither the Corporation nor any Affiliate shall submit an Order in
any Auction. Any Beneficial Owner that is an Affiliate shall not sell, transfer
or otherwise dispose of shares of AMPS to any Person other than the Corporation.
All of the Outstanding shares of AMPS of a series shall be represented by a
single certificate registered in the name of the nominee of the Securities
Depository unless otherwise required by law or unless there is no Securities
Depository. If there is no Securities Depository, at the Corporation's option
and upon its receipt of such documents as it deems appropriate, any shares of
AMPS may be registered in the Stock Register in the name of the Beneficial Owner
thereof and such Beneficial Owner thereupon will be entitled to receive
certificates therefor and required to deliver certificates therefor upon
transfer or exchange thereof.

                                       87
<PAGE>
 
     11.  Securities Depository; Stock Certificates.  (a)  If there is a
          -----------------------------------------                     
Securities Depository, one certificate for all of the shares of AMPS of each
series shall be issued to the Securities Depository and registered in the name
of the Securities Depository or its nominee.  Additional certificates may be
issued as necessary to represent shares of AMPS.  All such certificates shall
bear a legend to the effect that such certificates are issued subject to the
provisions restricting the transfer of shares of AMPS contained in these
Articles Supplementary.  Unless the Corporation shall have elected, during a
Non-Payment Period, to waive this requirement, the Corporation will also issue
stop-transfer instructions to the Auction Agent for the shares of AMPS.  Except
as provided in paragraph (b) below, the Securities Depository or its nominee
will be the Holder, and no Beneficial Owner shall receive certificates
representing its ownership interest in such shares.

     (b)  If the Applicable Rate applicable to all shares of AMPS of a series
shall be the Non-Payment Period Rate or there is no Securities Depository, the
Corporation may at its option issue one or more new certificates with respect to
such shares (without the legend referred to in paragraph 11(a)) registered in
the names of the Beneficial Owners or their nominees and rescind the stop-
transfer instructions referred to in paragraph 11(a) with respect to such
shares.

                                       88
<PAGE>
 
     IN WITNESS WHEREOF, MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC. has
caused these presents to be signed in its name and on its behalf by a duly
authorized officer, and attested by its Secretary, and the said officers of the
Corporation further acknowledge said instrument to be the corporate act of the
Corporation, and state under penalties of perjury that to the best of their
knowledge, information and belief the matters and facts herein set forth with
respect to approval are true in all material respects, all on        , 1998.


                              MUNIHOLDINGS CALIFORNIA INSURED
                                    FUND III, INC.

                              By  ____________________________
                                 Name:
                                 Title: Vice President

Attest:

___________________________
  Alice A. Pellegrino
   Secretary

                                       89

<PAGE>
 
                                                                EXHIBIT 99(d)(2)


                   Auction Market Preferred Stock, Series A

     NUMBER 1                                                        SHARES
                                                                -----
                 MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.

     INCORPORATED UNDER THE LAWS                            SEE REVERSE FOR
     OF THE STATE OF MARYLAND                               CERTAIN DEFINITIONS
 
     THIS CERTIFICATE IS TRANSFERABLE IN NEW YORK, NY       CUSIP #
                                                                   --------

     THIS CERTIFIES THAT

                              CEDE & CO.

     IS THE OWNER OF 
                     --------------------------------

     FULLY PAID AND NON-ASSESSABLE SHARES OF AUCTION MARKET PREFERRED STOCK, PAR
     VALUE $.10 PER SHARE, LIQUIDATION PREFERENCE $25,000 PER SHARE PLUS AN
     AMOUNT EQUAL TO ACCUMULATED BUT UNPAID DIVIDENDS THEREON (WHETHER OR NOT
     EARNED OR DECLARED) OF

                 MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.

     TRANSFERABLE ON THE BOOKS OF SAID CORPORATION IN PERSON OR BY DULY
     AUTHORIZED ATTORNEY UPON SURRENDER OF THIS CERTIFICATE PROPERLY ENDORSED.

     THIS CERTIFICATE IS NOT VALID UNTIL COUNTERSIGNED BY THE TRANSFER AGENT AND
     REGISTERED BY THE REGISTRAR.

     IN WITNESS WHEREOF, MUNIHOLDINGS INSURED FUND, INC. HAS CAUSED ITS
     CORPORATE SEAL TO BE HERETO AFFIXED AND THIS CERTIFICATE TO BE EXECUTED IN
     ITS NAME AND BEHALF BY ITS DULY AUTHORIZED OFFICERS.

     Dated:      
                 ------------

     Countersigned and Registered:
 
     IBJ SCHRODER BANK & TRUST COMPANY
     (New York)     Transfer Agent                      -----------------

     By:
         ------------------------------                 -----------------
          Authorized Signature
<PAGE>
 
THE TRANSFER OF THE SHARES OF AUCTION MARKET PREFERRED STOCK REPRESENTED HEREBY
IS SUBJECT TO THE RESTRICTIONS CONTAINED IN THE CORPORATION'S CHARTER. THE
CORPORATION WILL FURNISH INFORMATION ABOUT SUCH RESTRICTIONS TO ANY STOCKHOLDER,
WITHOUT CHARGE, UPON REQUEST TO THE SECRETARY OF THE CORPORATION.

                 MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.

     A full statement of the designations and any preferences, conversion and
other rights, voting powers, restrictions, limitations as to dividends,
qualifications, and terms and conditions of redemption of the shares of each
class and series of stock which the Corporation is authorized to issue and the
differences in the relative rights and preferences between the shares of each
class and series to the extent that they have been set, and the authority of the
Board of Directors to set the relative rights and preferences of subsequent
classes and series, will be furnished by the Corporation to any stockholder,
without charge, upon request to the Secretary of the Corporation at its
principal office.

     The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

<TABLE> 
<S>                                             <C> 
TEN COM--as tenants in common                   UNIF GIFT MIN ACT--       Custodian
TEN ENT--as tenants by the entireties                              ------           ------
JT TEN-- as joint tenants with right                               (Cust)           (Minor)
         of survivorship and not as tenants     under Uniform Gifts to Minors Act
         in common                                                                  ------
                                                                                   (State)
</TABLE> 
                                                            
    Additional abbreviations also may be used though not in the above list.

For value received,                     hereby sell, assign and transfer unto
                    -------------------

Please insert social securities or other identifying number of assignee

[                                   ]

  
- --------------------------------------------------------------------------------
(Please Print or Typewrite Name and Address, Including Zip Code, of Assignee)

 
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

                                                                          shares
- --------------------------------------------------------------------------
of the capital stock represented by the within Certificate, and do hereby
irrevocably constitute and appoint

                                                                     Attorney to
- ---------------------------------------------------------------------
transfer the said stock on the books of the within named Corporation with full
power of substitution in the premises.

Dated:
      ---------------
 
                    ------------------------------------------------------------
          NOTICE:   The Signature to this assignment must correspond with the
                    name as written upon the face of the Certificate in every
                    particular, without alteration or enlargement or any change
                    whatsoever.
<PAGE>
 
                    Auction Market Preferred Stock, Series B

     NUMBER 1                                                   SHARES
                                                           -----

                 MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.

     INCORPORATED UNDER THE LAWS                        SEE REVERSE FOR
     OF THE STATE OF MARYLAND                           CERTAIN DEFINITIONS
 
     THIS CERTIFICATE IS TRANSFERABLE IN NEW YORK, NY   CUSIP #
                                                               ---------

     THIS CERTIFIES THAT

                              CEDE & CO.

     IS THE OWNER OF 
                     ---------------------------------

     FULLY PAID AND NON-ASSESSABLE SHARES OF AUCTION MARKET PREFERRED STOCK, PAR
     VALUE $.10 PER SHARE, LIQUIDATION PREFERENCE $25,000 PER SHARE PLUS AN
     AMOUNT EQUAL TO ACCUMULATED BUT UNPAID DIVIDENDS THEREON (WHETHER OR NOT
     EARNED OR DECLARED) OF

                 MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.

     TRANSFERABLE ON THE BOOKS OF SAID CORPORATION IN PERSON OR BY DULY
     AUTHORIZED ATTORNEY UPON SURRENDER OF THIS CERTIFICATE PROPERLY ENDORSED.

     THIS CERTIFICATE IS NOT VALID UNTIL COUNTERSIGNED BY THE TRANSFER AGENT AND
     REGISTERED BY THE REGISTRAR.

     IN WITNESS WHEREOF, MUNIHOLDINGS INSURED FUND, INC. HAS CAUSED ITS
     CORPORATE SEAL TO BE HERETO AFFIXED AND THIS CERTIFICATE TO BE EXECUTED IN
     ITS NAME AND BEHALF BY ITS DULY AUTHORIZED OFFICERS.

     Dated:       
             --------

     Countersigned and Registered:
 
     IBJ SCHRODER BANK & TRUST COMPANY
     (New York)     Transfer Agent                      -------------------

     By:
        -------------------------------                 -------------------
          Authorized Signature
<PAGE>
 
THE TRANSFER OF THE SHARES OF AUCTION MARKET PREFERRED STOCK REPRESENTED HEREBY
IS SUBJECT TO THE RESTRICTIONS CONTAINED IN THE CORPORATION'S CHARTER. THE
CORPORATION WILL FURNISH INFORMATION ABOUT SUCH RESTRICTIONS TO ANY STOCKHOLDER,
WITHOUT CHARGE, UPON REQUEST TO THE SECRETARY OF THE CORPORATION.

                 MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.

     A full statement of the designations and any preferences, conversion and
other rights, voting powers, restrictions, limitations as to dividends,
qualifications, and terms and conditions of redemption of the shares of each
class and series of stock which the Corporation is authorized to issue and the
differences in the relative rights and preferences between the shares of each
class and series to the extent that they have been set, and the authority of the
Board of Directors to set the relative rights and preferences of subsequent
classes and series, will be furnished by the Corporation to any stockholder,
without charge, upon request to the Secretary of the Corporation at its
principal office.

     The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

<TABLE> 
<S>                                             <C> 
TEN COM--as tenants in common                   UNIF GIFT MIN ACT--       Custodian
TEN ENT--as tenants by the entireties                              ------           ------
JT TEN-- as joint tenants with right                               (Cust)           (Minor)
         of survivorship and not as tenants     under Uniform Gifts to Minors Act
         in common                                                                  ------
                                                                                   (State)
</TABLE> 


    Additional abbreviations also may be used though not in the above list.

For value received,                         hereby sell, assign and transfer
unto                -----------------------

Please insert social securities or other identifying number of assignee

[                                   ]

- --------------------------------------------------------------------------------
(Please Print or Typewrite Name and Address, Including Zip Code, of Assignee)

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------

                                                                          shares
- --------------------------------------------------------------------------
of the capital stock represented by the within Certificate, and do hereby
irrevocably constitute and appoint

                                                                     Attorney to
- ---------------------------------------------------------------------
transfer the said stock on the books of the within named Corporation with full
power of substitution in the premises.

Dated:
      ------------------------
 
                    ------------------------------------------------------------
          NOTICE:   The Signature to this assignment must correspond with the
                    name as written upon the face of the Certificate in every
                    particular, without alteration or enlargement or any change
                    whatsoever.

<PAGE>
 
                                                                EXHIBIT 99(h)(1)

                                       $


                 MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.
                            (a Maryland corporation)


                 AUCTION MARKET PREFERRED STOCK(R) ["AMPS"(R)]

                                Series A Shares
                                Series B Shares

                    Liquidation Preference $25,000 Per Share

                               PURCHASE AGREEMENT
                               ------------------



                                              , 1998



MERRILL LYNCH & CO.
MERRILL LYNCH, PIERCE, FENNER & SMITH
            INCORPORATED
Merrill Lynch World Headquarters
World Financial Center
North Tower
New York, New York  10281-1305

Dear Sirs and Mesdames:

     MuniHoldings California Insured Fund III, Inc., a Maryland corporation (the
"Fund"), and Fund Asset Management, L.P., a Delaware limited partnership (the
"Adviser"), each confirms its agreement with Merrill Lynch & Co., Merrill Lynch,
Pierce, Fenner & Smith Incorporated (the "Underwriter"), with respect to the
sale by the Fund and the purchase by the Underwriter of      shares of Auction
Market Preferred Stock(R), Series A ("Series A AMPS"), and     shares of Auction
Market Preferred Stock(R), Series B ("Series B AMPS"), each with a par value of
$.10 per share and a liquidation preference of $25,000 per share plus an amount
equal to accumulated but unpaid dividends (whether or not earned or declared).
The Series A AMPS and Series B AMPS are sometimes herein referred to together as
the "Shares."

 ______________________
(R) Registered trademark of Merrill Lynch & Co., Inc.
<PAGE>
 
     Prior to the purchase and public offering of the Shares by the Underwriter,
the Fund and the Underwriter shall enter into an  agreement substantially in the
form of Exhibit A hereto (the "Pricing Agreement").  The Pricing Agreement may
take the form of an exchange of any standard form of written telecommunication
between the Fund and the Underwriter and shall specify such applicable
information as is indicated in Exhibit A hereto.  The offering of the Shares
will be governed by this Agreement, as supplemented by the Pricing Agreement.
From and after the date of the execution and delivery of the Pricing Agreement,
this Agreement shall be deemed to incorporate the Pricing Agreement.

     The Fund has filed with the Securities and Exchange Commission (the
"Commission") a notification on Form N-8A of registration of the Fund as an
investment company under the Investment Company Act of 1940, as amended (the
"Investment Company Act"), a registration statement on Form N-2 (No. 333-    ),
and a related preliminary prospectus for the registration of the Shares under
the Securities Act of 1933, as amended (the "Securities Act"), the Investment
Company Act, and the rules and regulations of the Commission under the
Securities Act and the Investment Company Act (together, the "Rules and
Regulations"), and the Fund has filed such amendments to such registration
statement on Form N-2, if any, and such amended preliminary prospectuses as may
have been required to the date hereof.  The Fund will prepare and file such
additional amendments thereto and such amended prospectuses as hereafter may be
required.  Such registration statement (as amended at the time it becomes
effective, if applicable) and the prospectus constituting a part thereof
(including in each case the information, if any, deemed to be a part thereof
pursuant to Rule 430A(b) or Rule 434 of the Rules and Regulations), as from time
to time amended or supplemented pursuant to the Securities Act, are referred to
hereinafter as the "Registration Statement" and the "Prospectus", respectively;
except that if any revised prospectus shall be provided to the Underwriter by
the Fund for use in connection with the offering of the Shares which differs
from the Prospectus on file at the Commission at the time the Registration
Statement becomes effective (whether such revised prospectus is required to be
filed by the Fund pursuant to Rule 497(c) or Rule 497(h) of the Rules and
Regulations), the term "Prospectus" shall refer to each such revised prospectus
from and after the time it is first provided to the Underwriter for such use.
If the Fund elects to rely on Rule 434 under the Rules and Regulations, all
references to the Prospectus shall be deemed to include, without limitation, the
form of prospectus and the term sheet, taken together, provided to the
Underwriter by the Fund in reliance on Rule 434 under the Securities Act (the
"Rule 434 Prospectus").  If the Fund files a registration statement to register
a portion of the Shares and relies on Rule 462(b) for such registration
statement to become effective upon filing with the Commission (the "Rule 462
Registration Statement"), then any reference to "Registration Statement" herein
shall be deemed to include both the registration statement referred to above
(No. 333-    ) and the Rule 462 Registration Statement, as each such
registration statement may be amended pursuant to the Securities Act.

     The Fund understands that the Underwriter proposes to make a public
offering of the Shares as soon as the Underwriter deems advisable after the
Registration Statement becomes effective and the Pricing Agreement has been
executed and delivered.

     SECTION 1.  Representations and Warranties.  (a)  The Fund and the Adviser
each severally represents and warrants to the Underwriter as of the date hereof
and as of the date of 

                                       2
<PAGE>
 
the Pricing Agreement (such later date hereinafter being referred to as the
"Representation Date") as follows:

     (i) At the time the Registration Statement becomes effective and at the
Representation Date, the Registration Statement will comply in all material
respects with the requirements of the Securities Act, the Investment Company Act
and the Rules and Regulations and will not contain an untrue statement of a
material fact or omit to state a material fact required to be stated therein or
necessary to make the statements therein not misleading.  At the time the
Registration Statement becomes effective, at the Representation Date and at
Closing Time referred to in Section 2 hereof, the Prospectus (unless the term
"Prospectus" refers to a prospectus which has been provided to the Underwriter
by the Fund for use in connection with the offering of the Shares which differs
from the Prospectus on file with the Commission at the time the Registration
Statement becomes effective, in which case at the time such prospectus first is
provided to the Underwriter for such use) will not contain an untrue statement
of a material fact or omit to state a material fact necessary in order to make
the statements therein, in the light of the circumstances under which they were
made, not misleading; provided, however, that the representations and warranties
in this subsection shall not apply to statements in or omissions from the
Registration Statement or the Prospectus made in reliance upon and in conformity
with information furnished to the Fund in writing by the Underwriter expressly
for use in the Registration Statement or in the Prospectus.

     (ii)  The accountants who certified the statement of assets, liabilities
and capital included in the Registration Statement are independent public
accountants as required by the Securities Act and the Rules and Regulations.

     (iii)  The statement of assets, liabilities and capital included in the
Registration Statement presents fairly the financial position of the Fund as at
the date indicated and said statement has been prepared in conformity with
generally accepted accounting principles; and the information in the Prospectus
under the headings "Description of Capital Stock" and "Portfolio Composition"
has been fairly presented.

     (iv)  Since the respective dates as of which information is given in the
Registration Statement and in the Prospectus, except as otherwise stated
therein,

     (A) there has been no material adverse change in the condition, financial
     or otherwise, of the Fund, or in the earnings, business affairs or business
     prospects of the Fund, whether or not arising in the ordinary course of
     business, (B) there have been no transactions entered into by the Fund
     which are material to the Fund other than those in the ordinary course of
     business and (C) except for regular monthly dividends on the outstanding
     shares of common stock, par value $.10 per share (the "Common Shares") of
     the Fund, there has been no dividend or distribution of any kind declared,
     paid or made by the Fund on any class of its capital stock.

     (v)  The Fund has been duly incorporated and is validly existing as a
corporation in good standing under the laws of the State of Maryland with
corporate power and authority to own, lease and operate its properties and
conduct its business as described in the Registration Statement; the Fund is
duly qualified as a foreign corporation to transact business and is in good

                                       3
<PAGE>
 
standing in each jurisdiction in which such qualification is required; and the
Fund has no subsidiaries.

     (vi)  The Fund is registered with the Commission under the Investment
Company Act as a closed-end, non-diversified, management investment company, and
no order of suspension or revocation of such registration has been issued or
proceedings therefor initiated or threatened by the Commission.

     (vii)  The authorized, issued and outstanding capital stock of the Fund is
as set forth in the Prospectus under the caption "Description of Capital Stock";
the outstanding Common Shares have been duly authorized and validly issued and
are fully paid and nonassessable; the Shares have been duly authorized for
issuance and sale to the Underwriter pursuant to this Agreement and, when issued
and delivered by the Fund pursuant to this Agreement against payment of the
consideration set forth in the Pricing Agreement, will be validly issued and
fully paid and nonassessable; the Common Shares and the Shares conform in all
material respects to all statements relating thereto contained in the
Registration Statement; and the issuance of the Shares to be purchased by the
Underwriter is not subject to pre-emptive rights.

     (viii)  The Fund is not in violation of its articles of incorporation, as
amended (the "Charter"), or its by-laws, as amended (the "By-Laws"), or in
default in the performance or observance of any material obligation, agreement,
covenant or condition contained in any material contract, indenture, mortgage,
loan agreement, note, lease or other instrument to which it is a party or by
which it or its properties may be bound; and the execution and delivery of this
Agreement, the Pricing Agreement and the Investment Advisory Agreement, the
Custody Agreement, the Auction Agent Agreement and the Letter of Representations
referred to in the Registration Statement (as used herein, the "Advisory
Agreement," the "Auction Agreement," the "Custody Agreement" and the "Letter of
Representations," respectively), and the consummation of the transactions
contemplated herein and therein, have been duly authorized by all necessary
corporate action and will not conflict with or constitute a breach of, or a
default under, or result in the creation or imposition of any lien, charge or
encumbrance upon any property or assets of the Fund pursuant to any material
contract, indenture, mortgage, loan agreement, note, lease or other instrument
to which the Fund is a party or by which it may be bound or to which any of the
property or assets of the Fund is subject, nor will such action result in any
violation of the provisions of the Charter or the By-Laws of the Fund, or, to
the best knowledge of the Fund and the Adviser, any law, administrative
regulation or administrative or court decree; and no consent, approval,
authorization or order of any court or governmental authority or agency is
required for the consummation by the Fund of the transactions contemplated by
this Agreement, the Pricing Agreement, the Advisory Agreement, the Custody
Agreement, the Auction Agreement and the Letter of Representations, except such
as has been obtained under the Investment Company Act or as may be required
under the Securities Act or state securities or Blue Sky laws in connection with
the purchase and distribution of the Shares by the Underwriter.

     (ix)  The Fund owns or possesses or has obtained all material governmental
licenses, permits, consents, orders, approvals and other authorizations
necessary to lease or own, as the case may be, and to operate its properties and
to carry on its businesses as contemplated in the

                                       4
<PAGE>
 
Prospectus and the Fund has not received any notice of proceedings relating to
the revocation or modification of any such licenses, permits, covenants, orders,
approvals or authorizations.

     (x)  There is no action, suit or proceeding before or by any court or
governmental agency or body, domestic or foreign, now pending, or, to the
knowledge of the Fund or the Adviser, threatened against or affecting the Fund,
which might result in any material adverse change in the condition, financial or
otherwise, business affairs or business prospects of the Fund, or might
materially and adversely affect the properties or assets of the Fund; and there
are no material contracts or documents of the Fund which are required to be
filed as exhibits to the Registration Statement by the Securities Act, the
Investment Company Act or the Rules and Regulations which have not been so
filed.

     (xi)   There are no contracts or documents which are required to be
described in the Registration Statement or the Prospectus or to be filed as
exhibits thereto which have not been so described and filed as required.

     (xii)  The Fund owns or possesses, or can acquire on reasonable terms,
adequate trademarks, service marks and trade names necessary to conduct its
business as described in the Registration Statement, and the Fund has not
received any notice of infringement of or conflict with asserted rights of
others with respect to any trademarks, service marks or trade names which,
singly or in the aggregate, if the subject of an unfavorable decision, ruling or
finding, would materially adversely affect the conduct of the business,
operations, financial condition or income of the Fund.

     (xiii) The Fund intends to, and will, direct the investment of the
proceeds of the offering described in the Registration Statement in such a
manner as to comply with the requirements of Subchapter M of the Internal
Revenue Code of 1986, as amended ("Subchapter M of the Code"), and intends to
qualify as a regulated investment company under Subchapter M of the Code.

     (xiv)  Each of this Agreement, the Advisory Agreement and the Custody
Agreement has been duly authorized, executed and delivered by the Fund, and each
complies with all applicable provisions of the Investment Company Act.

     (xv)   Each of the Auction Agreement and the Letter of Representations has
been duly authorized for execution and delivery by the Fund and, when executed
and delivered by the Fund, will constitute a valid and binding obligation of the
Fund, enforceable in accordance with its terms, subject, as to enforcement, to
bankruptcy, insolvency, reorganization or other laws relating to or affecting
creditors' rights and to general equitable principles.

     (b)    The Adviser represents and warrants to the Underwriter as of the
date hereof and as of the Representation Date as follows:

     (i)    The Adviser has been duly organized as a limited partnership under
the laws of the State of Delaware with power and authority to conduct its
business as described in the Registration Statement and in the Prospectus.

     (ii)   The Adviser is duly registered as an investment adviser under the
Investment Advisers Act of 1940, as amended (the "Investment Advisers Act"), and
is not prohibited by the 

                                       5
<PAGE>
 
Investment Advisers Act or the Investment Company Act, or the rules and
regulations under such acts, from acting under the Advisory Agreement for the
Fund as contemplated by the Prospectus.

     (iii)  This Agreement has been duly authorized, executed and delivered by
the Adviser; the Advisory Agreement has been duly authorized, executed and
delivered by the Adviser and constitutes a valid and binding obligation of the
Adviser, enforceable in accordance with its terms, subject, as to enforcement,
to bankruptcy, insolvency, reorganization or other laws relating to or affecting
creditors' rights and to general equitable principles; and neither the execution
and delivery of this Agreement or the Advisory Agreement, nor the performance by
the Adviser of its obligations hereunder or thereunder will conflict with, or
result in a breach of any of the terms and provisions of, or constitute, with or
without the giving of notice or the lapse of time or both, a default under, any
agreement or instrument to which the Adviser is a party or by which it is bound,
or any law, order, rule or regulation applicable to it of any jurisdiction,
court, Federal or state regulatory body, administrative agency or other
governmental body, stock exchange or securities association having jurisdiction
over the Adviser or its respective properties or operations.

     (iv)  The Adviser has the financial resources available to it necessary for
the performance of its services and obligations as contemplated in the
Prospectus.

     (c) Any certificate signed by any officer of the Fund or the Adviser and
delivered to the Underwriter or to counsel to the Underwriter shall be deemed a
representation and warranty by the Fund or the Adviser, as the case may be, to
the Underwriter, as to the matters covered thereby.

     SECTION 2.  Sale and Delivery to the Underwriter; Closing.

     (a) On the basis of the representations and warranties herein contained,
and subject to the terms and conditions herein set forth, the Fund agrees to
sell the Shares to the Underwriter, and the Underwriter agrees to purchase the
Shares from the Fund, at the price per share set forth in the Pricing Agreement.

     (i)  If the Fund has elected not to rely upon Rule 430A under the Rules and
Regulations, the initial public offering prices and the purchase price per share
to be paid by the Underwriter for the Shares have been determined and set forth
in the Pricing Agreement, dated the date hereof, and an amendment to the
Registration Statement and the Prospectus will be filed before the Registration
Statement becomes effective.

     (ii)  If the Fund has elected to rely upon Rule 430A under the Rules and
Regulations, the purchase price per share to be paid by the Underwriter for the
Shares shall be an amount equal to the applicable initial public offering price,
less an amount per share to be determined by agreement between the Underwriter
and the Fund. The initial public offering price per share shall be a fixed price
based upon the number of shares purchased in a single transaction to be
determined by agreement between the Underwriter and the Fund. The initial public
offering price and the purchase price, when so determined, shall be set forth in
the Pricing Agreement. In the event that such prices have not been agreed upon
and the Pricing Agreement has not been

                                       6
<PAGE>
 
executed and delivered by all parties thereto by the close of business on the
fourth business day following the date of this Agreement, this Agreement shall
terminate forthwith, without liability of any party to any other party, except
as provided in Section 5 hereof, unless otherwise agreed to by the Fund, the
Adviser and the Underwriter.

     (b) Payment of the purchase price for, and delivery of certificates for,
the Shares shall be made at the office of Brown & Wood llp, One World Trade
Center, New York, New York 10048-0557, or at such other place as shall be agreed
upon by the Underwriter the Fund, at 9:00 A.M. on the third business day
following the date the Registration Statement becomes effective or, if the Fund
has elected to rely upon Rule 430A under the Rules and Regulations, the third
business day after execution of the Pricing Agreement (or, if pricing takes
place after 4:30 P.M. on either the date the Registration Statement becomes
effective or the date of execution of the Pricing Agreement, as applicable, the
fourth business day after such applicable date), or such other time not later
than ten business days after such date as shall be agreed upon by the
Underwriter and the Fund (such time and date of payment and delivery herein
being referred to as "Closing Time").  Payment shall be made to the Fund by a
Federal Funds wire transfer or similar same-day funds, against delivery to the
Underwriter of the certificates for the Shares to be purchased by it.  The
Shares shall be represented by certificates registered in the name of Cede &
Co., as nominee for The Depository Trust Company.  The certificates for the
Shares will be made available for examination by the Underwriter not later than
10:00 A.M. on the last business day prior to Closing Time.

     SECTION 3.  Covenants of the Fund.  The Fund covenants with the Underwriter
as follows:

     (a) The Fund will use its best efforts (i) to cause the Registration
Statement to become effective under the Securities Act, and will advise the
Underwriter promptly as to the time at which the Registration Statement and any
amendments thereto (including any post-effective amendment) becomes so effective
and (ii) if required, to cause the issuance of any orders exempting the Fund
from any provisions of the Investment Company Act, and the Fund will advise the
Underwriter promptly as to the time at which any such orders are granted.

     (b) The Fund will notify the Underwriter immediately, and will confirm the
notice in writing, (i) of the effectiveness of the Registration Statement and
any amendments thereto (including any post-effective amendment), (ii) of the
receipt of any comments from the Commission, (iii) of any request by the
Commission for any amendment to the Registration Statement or any amendment or
supplement to the Prospectus or for additional information, (iv) of the issuance
by the Commission of any stop order suspending the effectiveness of the
Registration Statement or the initiation of any proceedings for that purpose,
and (v) of the issuance by the Commission of an order of suspension or
revocation of the notification on Form N-8A of registration of the Fund as an
investment company under the Investment Company Act or the initiation of any
proceeding for that purpose.  The Fund will make every reasonable effort to
prevent the issuance of any stop order described in subsection (iv) hereunder or
any order of suspension or revocation described in subsection (v) hereunder and,
if any such stop order or order of suspension or revocation is issued, to obtain
the lifting thereof at the earliest possible moment. If the Fund elects to rely
on Rule 434 under the Rules and Regulations, the fund will prepare a term sheet
that complies with the requirements of Rule 434 under the Rules and


                                       7
<PAGE>
 
Regulations and the Fund will provide the Underwriter with copies of the form of
Rule 434 Prospectus, in such number as the Underwriter may reasonably request by
the close of business in New York on the business day immediately succeeding the
date of the Pricing Agreement.

     (c) The Fund will give the Underwriter notice of its intention to file any
amendment to the Registration Statement (including any post-effective amendment)
or any amendment or supplement to the Prospectus (including any revised
prospectus which the Fund proposes for use by the Underwriter in connection with
the offering of the Shares, which differs from the prospectus on file at the
Commission at the time the Registration Statement becomes effective, whether
such revised prospectus is required to be filed pursuant to Rule 497(c) or Rule
497(h) of the Rules and Regulations or any term sheet prepared in reliance on
Rule 434 of the Rules and Regulations), whether pursuant to the Investment
Company Act, the Securities Act, or otherwise, and will furnish the Underwriter
with copies of any such amendment or supplement a reasonable amount of time
prior to such proposed filing or use, as the case may be, and will not file any
such amendment or supplement to which the Underwriter reasonably shall object.

     (d) The Fund will deliver to the Underwriter, as soon as practicable, two
signed copies of the notification of registration and registration statement as
originally filed and of each amendment thereto, in each case with two sets of
the exhibits filed therewith, and also will deliver to the Underwriter a
conformed copy of the registration statement as originally filed and of each
amendment thereto (but without exhibits to the registration statement or any
such amendment) for the Underwriter.

     (e) The Fund will furnish to the Underwriter, from time to time during the
period when the Prospectus is required to be delivered under the Securities Act,
such number of copies of the Prospectus (as amended or supplemented) as the
Underwriter reasonably may request for the purposes contemplated by the
Securities Act, or the Rules and Regulations.

     (f) If any event shall occur as a result of which it is necessary, in the
opinion of counsel to the Fund and the Underwriter, to amend or supplement the
Prospectus in order to make the Prospectus not misleading in the light of the
circumstances existing at the time it is delivered to a purchaser, the Fund
forthwith will amend or supplement the Prospectus by preparing and furnishing to
the Underwriter a reasonable number of copies of an amendment or amendments of
or a supplement or supplements to, the Prospectus (in form and substance
satisfactory to counsel to the Fund and the Underwriter), so that, as so amended
or supplemented, the Prospectus will not contain an untrue statement of a
material fact or omit to state a material fact necessary in order to make the
statements therein, in the light of the circumstances existing at the time the
Prospectus is delivered to a purchaser, not misleading.

     (g) The Fund will endeavor, in cooperation with the Underwriter, to qualify
the Shares for offering and sale under the applicable securities laws of such
states and other jurisdictions of the United States as the Underwriter may
designate, and will maintain such qualifications in effect for a period of not
less than one year after the date hereof. The Fund will file such statements and
reports as may be required by the laws of each jurisdiction in which the Shares
have been qualified as above provided.

                                       8
<PAGE>
 
     (h) The Fund will make generally available to its security holders as soon
as practicable, but no later than 60 days after the close of the period covered
thereby, an earnings statement (in form complying with the provisions of Rule
158 of the Rules and Regulations) covering a twelve-month period beginning not
later than the first day of the Fund's fiscal quarter next following the
"effective" date (as defined in said Rule 158) of the Registration Statement.

     (i) Between the date of this Agreement and the termination of any trading
restrictions or Closing Time, whichever is later, the Fund will not, without
your prior consent, offer or sell, or enter into any agreement to sell, any
equity or equity related securities of the Fund other than the Shares and the
Common Shares issued in reinvestment of dividends or distributions.

     (j) If, at the time that the Registration Statement becomes effective, any
information shall have been omitted therefrom in reliance upon Rule 430A of the
Rules and Regulations, then immediately following the execution of the Pricing
Agreement, the Fund will prepare, and file or transmit for filing with the
Commission in accordance with such Rule 430A and Rule 497(h) of the Rules and
Regulations, copies of the amended Prospectus, or, if required by such Rule
430A, a post-effective amendment to the Registration Statement (including an
amended Prospectus), containing all information so omitted.

     (k)  The Fund will use its best efforts to maintain its qualification as a
regulated investment company under Subchapter M of the Code.

     SECTION 4.  Covenants of the Underwriter.  The Underwriter covenants and
agrees with the Fund that no later than the second business day succeeding
Closing Time, it will provide the Fund and the Auction Agent (as defined in the
Prospectus) with a list of Existing Holders (as defined in the Prospectus) of
Shares, the number of Shares held by each such Existing Holder and the number of
Shares it is holding as Underwriter as of the date of such notice.

     SECTION 5.  Payment of Expenses.  The Fund will pay all expenses incident
to the performance of its obligations under this Agreement, including, but not
limited to, expenses relating to (i) the printing and filing of the registration
statement as originally filed and of each amendment thereto, (ii) the
preparation of this Agreement and the Pricing Agreement, (iii) the preparation,
issuance and delivery of the certificates for the Shares to the Underwriter,
(iv) the fees and disbursements of the Fund's counsel and accountants, (v) the
qualification of the Shares under securities laws in accordance with the
provisions of Section 3(g) of this Agreement, including filing fees and any fees
or disbursements of counsel for the Underwriter in connection therewith and in
connection with the preparation of the Blue Sky Survey, (vi) the printing and
delivery to the Underwriter of copies of the registration statement as
originally filed and of each amendment thereto, of the preliminary prospectus,
and of the Prospectus and any amendments or supplements thereto, (vii) the
printing and delivery to the Underwriter of copies of the Blue Sky Survey and
(viii) the fees charged by rating agencies for the rating of the Shares.

     If this Agreement is terminated by the Underwriter in accordance with the
provisions of Section 6 or Section 10(a)(i) hereof, the Fund or the Adviser
shall reimburse the Underwriter for all of its reasonable out-of-pocket
expenses, including the reasonable fees and disbursements of counsel to the Fund
and the Underwriter.  In the event the transactions contemplated hereunder 

                                       9
<PAGE>
 
are not consummated, the Adviser agrees to pay all of the costs and expenses set
forth in the first paragraph of this Section 5 which the Fund would have paid if
such transactions had been consummated.

     SECTION 6.  Conditions of Underwriter's Obligations.  The obligations of
the Underwriter hereunder are subject to the accuracy of the representations and
warranties of the Fund and the Adviser herein contained, to the performance by
the Fund and the Adviser of their respective obligations hereunder, and to the
following further conditions:

     (a) The Registration Statement shall have become effective not later than
5:30 P.M., New York City time, on the date of this Agreement, or at a later time
and date not later, however, than 5:30 p.m. on the first business day following
the date hereof, or at such later time and date as may be approved by the
Underwriter, and at Closing Time no stop order suspending the effectiveness of
the Registration Statement shall have been issued under the Securities Act or
proceedings therefor initiated or threatened by the Commission.  If the Fund has
elected to rely upon Rule 430A of the Rules and Regulations, the price of the
Shares and any price-related information previously omitted from the effective
Registration Statement pursuant to such Rule 430A shall have been transmitted to
the Commission for filing pursuant to Rule 497(h) of the Rules and Regulations
within the prescribed time period, and prior to Closing Time the Fund shall have
provided evidence satisfactory to the Underwriter of such timely filing, or a
post-effective amendment providing such information shall have been filed
promptly and declared effective in accordance with the requirements of Rule 430A
of the Rules and Regulations.

     (b) At Closing Time, the Underwriter shall have received:

          (1)  The favorable opinion, dated as of Closing Time, of Brown & Wood
          LLP, counsel to the Fund and the Underwriter, to the effect that:

               (i)  The Fund has been duly incorporated and is validly existing
          as a corporation in good standing under the laws of the State of
          Maryland.

               (ii)  The Fund has corporate power and authority to own, lease
          and operate its properties and conduct its business as described in
          the Registration Statement and in the Prospectus.

               (iii)  The Fund is duly qualified as a foreign corporation to
          transact business and is in good standing in each jurisdiction in
          which such qualification is required.

               (iv)  The outstanding Common Shares have been duly authorized and
          validly issued and are fully paid and nonassessable.

               (v)  The Shares have been duly authorized for issuance and sale
          to the Underwriter pursuant to this Agreement and, when issued and
          delivered by the Fund pursuant to this Agreement against payment of
          the consideration set forth in the Pricing Agreement, will be validly
          issued and fully paid and nonassessable; the issuance of the Shares is
          not subject to pre-emptive or other similar rights; and the authorized
          capital stock conforms as to legal matters in all material respects to

                                       10
<PAGE>
 
          the description thereof in the Registration Statement under the
          caption "Description of Capital Stock".

               (vi)  Each of this Agreement and the Pricing Agreement has been
          duly authorized, executed and delivered by the Fund and each complies
          with all applicable provisions of the Investment Company Act.

               (vii)  The Registration Statement is effective under the
          Securities Act and, to the best of their knowledge and information, no
          stop order suspending the effectiveness of the Registration Statement
          has been issued under the Securities Act or proceedings therefor
          initiated or threatened by the Commission.

               (viii)  At the time the Registration Statement became effective
          and at the Representation Date, the Registration Statement (other than
          the financial statements included therein, as to which no opinion need
          be rendered) complied as to form in all material respects with the
          requirements of the Securities Act and the Investment Company Act and
          the Rules and Regulations.  The Rule 434 Prospectus conforms to the
          requirements of Rule 434 in all material respects.

               (ix)  To the best of their knowledge and information, there are
          no legal or governmental proceedings pending or threatened against the
          Fund which are required to be disclosed in the Registration Statement,
          other than those disclosed therein.

               (x)  To the best of their knowledge and information, there are no
          contracts, indentures, mortgages, loan agreements, notes, leases or
          other instruments of the Fund required to be described or referred to
          in the Registration Statement or to be filed as exhibits thereto other
          than those described or referred to therein or filed as exhibits
          thereto, the descriptions thereof are correct in all material
          respects, references thereto are correct, and no default exists in the
          due performance or observance of any material obligation, agreement,
          covenant or condition contained in any contract, indenture, mortgage,
          loan agreement, note, lease or other instrument so described, referred
          to or filed.

               (xi)  No consent, approval, authorization or order of any court
          or governmental authority or agency is required in connection with the
          sale of the Shares to the Underwriter, except such as has been
          obtained under the Securities Act, the Investment Company Act or the
          Rules and Regulations or such as may be required under state
          securities laws; and to the best of their knowledge and information,
          the execution and delivery of this Agreement, the Pricing Agreement,
          the Advisory Agreement, the Custody Agreement, the Auction Agreement
          and the Letter of Representations and the consummation of the
          transactions contemplated herein and therein will not conflict with or
          constitute a breach of, or a default under, or result in the creation
          or imposition of any lien, charge or encumbrance upon any property or
          assets of the Fund pursuant to, any contract, indenture, mortgage,
          loan agreement, note, lease or other instrument to which the Fund is a
          party or by which it may be bound or to which any of the 

                                       11
<PAGE>
 
          property or assets of the Fund is subject, nor will such action result
          in any violation of the provisions of the Charter or the By-Laws of
          the Fund, or any law or administrative regulation, or, to the best of
          their knowledge and information, administrative or court decree.

               (xii)  Each of the Advisory Agreement and the Custody Agreement
          has been duly authorized and approved by the Fund and complies as to
          form in all material respects with all applicable provisions of the
          Investment Company Act, and each has been duly executed by the Fund.

               (xiii)  The Fund is registered with the Commission under the
          Investment Company Act as a closed-end, non-diversified, management
          investment company, and all required action has been taken by the Fund
          under the Securities Act, the Investment Company Act and the Rules and
          Regulations to make the public offering and consummate the sale of the
          Shares pursuant to this Agreement; the provisions of the Charter and
          the By-Laws of the Fund comply as to form in all material respects
          with the requirements of the Investment Company Act; and, to the best
          of their knowledge and information, no order of suspension or
          revocation of such registration under the Investment Company Act,
          pursuant to Section 8(e) of the Investment Company Act, has been
          issued or proceedings therefor initiated or threatened by the
          Commission.

               (xiv)  The information in the Prospectus under the caption
          "Taxes", to the extent that it constitutes matters of law or legal
          conclusions, has been reviewed by them and is correct in all material
          respects.

               (xv)  Each of the Auction Agreement and the Letter of
          Representations has been duly authorized, executed and delivered by
          the Fund, and each constitutes a valid and binding obligation of the
          Fund, enforceable in accordance with its terms, subject, as to
          enforcement, to bankruptcy, insolvency, reorganization or other laws
          relating to or affecting creditors' rights and to general equitable
          principles.

(2)  The favorable opinion, dated as of Closing Time, of Michael J. Hennewinkel,
     Esq., General Counsel of the Adviser, or of a Senior Attorney of the
     Adviser, in form and substance satisfactory to counsel to the Underwriter,
     to the effect that:

               (i)  The Adviser has been duly organized as a limited partnership
          under the laws of the State of Delaware, with power and authority to
          conduct its business as described in the Registration Statement and in
          the Prospectus.

               (ii)  The Adviser is duly registered as an investment adviser
          under the Investment Advisers Act and is not prohibited by the
          Investment Advisers Act or the Investment Company Act, or the rules
          and regulations under such Acts, from acting under the Advisory
          Agreement for the Fund as contemplated by the Prospectus.

                                       12
<PAGE>
 
               (iii)  This Agreement and the Advisory Agreement have been duly
          authorized, executed and delivered by the Adviser, and the Advisory
          Agreement constitutes a valid and binding obligation of the Adviser,
          enforceable in accordance with its terms, subject, as to enforcement,
          to bankruptcy, insolvency, reorganization or other laws relating to or
          affecting creditors' rights and to general equity principles; and, to
          the best of his knowledge and information, neither the execution and
          delivery of this Agreement or the Advisory Agreement nor the
          performance by the Adviser of its obligations hereunder or thereunder
          will conflict with, or result in a breach of, any of the terms and
          provisions of, or constitute, with or without the giving of notice or
          the lapse of time or both, a default under, any agreement or
          instrument to which the Adviser is a party or by which the Adviser is
          bound, or any law, order, rule or regulation applicable to the Adviser
          of any jurisdiction, court, Federal or state regulatory body,
          administrative agency or other governmental body, stock exchange or
          securities association having jurisdiction over the Adviser or its
          properties or operations.

               (iv)  To the best of his knowledge and information, the
          description of the Adviser in the Registration Statement and in the
          Prospectus does not contain any untrue statement of a material fact or
          omit to state any material fact required to be stated therein or
          necessary to make the statements therein not misleading.

          (3)  In giving their opinion required by subsection (b)(1) of this
          Section 6, Brown & Wood llp additionally shall state that nothing has
          come to their attention that would lead them to believe that the
          Registration Statement (other than the financial statements included
          therein, as to which no opinion need be rendered), at the time it
          became effective or at the Representation Date, contained an untrue
          statement of a material fact or omitted to state a material fact
          required to be stated therein or necessary to make the statements
          therein not misleading or that the Prospectus (other than the
          financial statements included therein, as to which no opinion need be
          rendered), at the Representation Date (unless the term "Prospectus"
          refers to a prospectus which has been provided to the Underwriter by
          the Fund for use in connection with the offering of the Shares which
          differs from the Prospectus on file at the Commission at the time the
          Registration Statement becomes effective, in which case at the time it
          first is provided to the Underwriter for such use) or at Closing Time,
          included an untrue statement of a material fact or omitted to state a
          material fact necessary in order to make the statements therein, in
          the light of the circumstances under which they were made, not
          misleading.

     (c) At Closing Time, (i) the Registration Statement and the Prospectus
shall contain all statements which are required to be stated therein in
accordance with the Securities Act, the Investment Company Act and the Rules and
Regulations and in all material respects shall conform to the requirements of
the Securities Act, the Investment Company Act and the Rules and Regulations,
and neither the Registration Statement nor the Prospectus shall contain any
untrue statement of a material fact or omit to state any material fact necessary
to make the statements therein, in the light of the circumstances under which
they were made, not misleading, and no action, suit or proceeding at law or in
equity shall be pending or, to the 

                                       13
<PAGE>
 
knowledge of the Fund or the Adviser, threatened against the Fund or the Adviser
which would be required to be set forth in the Prospectus other than as set
forth therein, (ii) there shall not have been, since the date as of which
information is given in the Prospectus, any material adverse change in the
condition, financial or otherwise, of the Fund or in its earnings, business
affairs or business prospects, whether or not arising in the ordinary course of
business, from that set forth in the Prospectus, (iii) the Adviser shall have
the financial resources available to it necessary for the performance of its
services and obligations as contemplated in the Registration Statement and the
Prospectus, (iv) no proceedings shall be pending or, to the knowledge of the
Fund or the Adviser, threatened against the Fund or the Adviser before or by any
Federal, state or other commission, board or administrative agency wherein an
unfavorable decision, ruling or finding would materially and adversely affect
the business, property, financial condition or income of either the Fund or the
Adviser other than as set forth in the Prospectus, (v) Moody's Investors
Service, Inc. ("Moody's") and Standard & Poor's Ratings Services ("S&P") shall
have confirmed that the Shares have been rated "aaa" and AAA, respectively, by
such agencies; and (vi) the Distributor and the Underwriter shall have received,
at Closing Time, a certificate of the President or the Treasurer of the Fund and
of the President or a Vice President of the Adviser dated as of Closing Time,
evidencing compliance with the appropriate provisions of this subsection (c),
together with true and correct copies of letters from Moody's and S&P confirming
their rating.

     (d) At Closing Time, the Underwriter shall have received certificates,
dated as of Closing Time, (i) of the President or the Treasurer of the Fund to
the effect that the representations and warranties of the Fund contained in
Section 1(a) hereof are true and correct with the same force and effect as
though expressly made at and as of Closing Time and, (ii) of the President or a
Vice President of the Adviser to the effect that the representations and
warranties of the Adviser contained in Sections 1(a) and (b) hereof are true and
correct with the same force and effect as though expressly made at and as of
Closing Time.

     (e) At the time of execution of this Agreement, the Underwriter shall have
received from ________ LLP a letter, dated such date in form and substance
satisfactory to the Underwriter, to the effect that:

               (i) they are independent accountants with respect to the Fund
     within the meaning of the Securities Act and the Rules and Regulations;

               (ii) in their opinion, the statement of assets, liabilities and
     capital examined by them and included in the Registration Statement
     complies as to form in all material respects with the applicable accounting
     requirements of the Securities Act and the Investment Company Act and the
     Rules and Regulations;

              (iii)  they have performed specified procedures, not constituting
     an audit, including a reading of the latest available interim financial
     statements of the Fund, a reading of the minute books of the Fund,
     inquiries of officials of the Fund responsible for financial accounting
     matters and such other inquiries and procedures as may be specified in such
     letter, and on the basis of such inquiries and procedures nothing came to
     their attention that caused them to believe that (A) the unaudited
     financial statements as of May 1, 1998 included in the Registration
     Statement do not comply as to form in all material respects 

                                       14
<PAGE>
 
     with the applicable accounting requirements of the Securities Act and of
     the Rules and Regulations applicable to unaudited interim financial
     statements included in registration statements or are not in conformity
     with generally accepted accounting principles applied on a basis
     substantially consistent with that of the audited financial statements
     included in the Registration Statement, and (B) during the period from May
     1, 1998 to a specified date not more than three days prior to the date of
     this Agreement, there was any change in the capital stock or net assets of
     the Fund (other than by reason of the issuance of Common Shares in
     connection with the Fund's dividend reinvestment plan, as specified in such
     letter) or any increase in the long-term debt of the Fund, as compared with
     amounts shown on the unaudited financial statements included in the
     Registration Statement, except for changes which the Registration Statement
     discloses have occurred or may occur; and

     (iv) in addition to the procedures referred to in clause (iii) above, they
have performed other specified procedures, not constituting an audit, with
respect to certain amounts, percentages, numerical data, financial information
and financial statements appearing in the Registration Statement, which
previously have been specified by such accountants and which shall be specified
in such letter, and have compared certain of such items with, and have found
such items to be in agreement with, the accounting and financial records of the
Fund.

     (f) At Closing Time, the Underwriter shall have received from ________ llp
a letter, dated as of Closing Time, to the effect that they reaffirm the
statements made in the letter furnished pursuant to subsection (e) of this
Section 6, except that the "specified date" referred to shall be a date not more
than three days prior to Closing Time.

     (g) At Closing Time, counsel to the Underwriter shall have been furnished
with such documents and opinions as they reasonably may require for the purpose
of enabling them to pass upon the issuance and sale of the Shares as herein
contemplated and to pass upon related proceedings, or in order to evidence the
accuracy of any of the representations or warranties, or the fulfillment of any
of the conditions, herein contained; and all proceedings taken by the Fund and
the Adviser in connection with the organization and registration of the Fund
under the Investment Company Act and the issuance and sale of the Shares as
herein contemplated shall be satisfactory in form and substance to counsel to
the Underwriter and counsel to the Underwriter.

     If any condition specified in this Section 6 shall not have been fulfilled
when and as required to be fulfilled, this Agreement may be terminated by the
Underwriter by notice to the Fund at any time at or prior to Closing Time, and
such termination shall be without liability of any party to any other party,
except as provided in Section 5 hereof and except that Sections 1, 7, 8 and 9
hereof shall survive any such termination and remain in full force and effect.

     SECTION 7.  Indemnification.  (a)  The Fund and the Adviser jointly and
severally agree to indemnify and hold harmless the Underwriter and each person,
if any, who controls the Underwriter within the meaning of Section 15 of the
Securities Act as follows:

     (i)  against any and all loss, liability, claim, damage and expense
whatsoever, as incurred, arising out of any untrue statement or alleged untrue
statement of a material fact contained in the Registration Statement (or any
amendment thereto), including the information deemed to be part 

                                       15
<PAGE>
 
of the Registration Statement pursuant to Rule 430A or Rule 434 of the Rules and
Regulations, if applicable, or the omission or alleged omission therefrom of a
material fact required to be stated therein or necessary to make the statements
therein not misleading or arising out of any untrue statement or alleged untrue
statement of a material fact contained in any preliminary prospectus or the
Prospectus (or any amendment or supplement thereto) or the omission or alleged
omission therefrom of a material fact necessary in order to make the statements
therein, in the light of the circumstances under which they were made, not
misleading;

     (ii)  against any and all loss, liability, claim, damage and expense
whatsoever, as incurred, to the extent of the aggregate amount paid in
settlement of any litigation, or any investigation or proceeding by any
governmental agency or body, commenced or threatened, or of any claim whatsoever
based upon any such untrue statement or omission, provided that (subject to
Section 7(d) below) any such settlement is effected with the written consent of
the indemnifying party; and

     (iii)  against any and all expenses whatsoever (including the fees and
disbursements of counsel chosen by the Underwriter) reasonably incurred in
investigating, preparing or defending against any litigation, or investigation
or proceeding by any governmental agency or body, commenced or threatened, or
any claim whatsoever based upon any such untrue statement or omission, or any
such alleged untrue statement or omission, to the extent that any such expense
is not paid under (i) or (ii) above; provided, however, that this indemnity
agreement does not apply to any loss, liability, claim, damage or expense to the
extent arising out of any untrue statement or omission or alleged untrue
statement or omission made in reliance upon and in conformity with written
information furnished to the Fund by the Underwriter expressly for use in the
Registration Statement (or any amendment thereto), including the information
deemed to be a part of the Registration Statement pursuant to Rule 430A or Rule
434 of the Rules and Regulations, or any preliminary prospectus or in the
Prospectus (or any amendment or supplement thereto).

     (b) The Underwriter agrees to indemnify and hold harmless the Fund and the
Adviser, their respective directors, each of the Fund's officers who signed the
Registration Statement, and each person, if any, who controls the Fund or the
Adviser within the meaning of Section 15 of the Securities Act, against any and
all loss, liability, claim, damage and expense described in the indemnity
contained in subsection (a) of this Section 7, as incurred, but only with
respect to untrue statements or omissions, or alleged untrue statements or
omissions, made in the Registration Statement (or in any amendment or supplement
thereto) or in any preliminary prospectus or in the Prospectus (or in any
amendment or supplement thereto) in reliance upon and in conformity with written
information furnished to the Fund by the Underwriter expressly for use in the
Registration Statement (or in any amendment or supplement thereto), including
the information deemed to be a part of the Registration Statement pursuant to
Rule 430A or Rule 434 of the Rules and Regulations, or any preliminary
prospectus or the Prospectus (or any amendment or supplement thereto) in
reliance upon and in conformity with written information furnished to the Fund
by the Underwriter expressly for use in the Registration Statement (or any
amendment thereto) or any preliminary prospectus or the Prospectus (or any
amendment or supplement thereto).

                                       16
<PAGE>
 
     (c) Each indemnified party shall give notice as promptly as reasonably
practicable to each indemnifying party of any action commenced against it in
respect of which indemnity may be sought hereunder, but failure to so notify an
indemnifying party shall not relieve such indemnifying party from any liability
hereunder to the extent it is not materially prejudicial as a result thereof and
in no event shall not relieve it from any liability which it may have otherwise
than on account of this indemnity agreement.  An indemnifying party may
participate at its own expense in the defense of any such action; provided,
however, that counsel to the indemnifying party shall not (except with the
consent of the indemnified party) also be counsel to the indemnified party.  In
no event shall the indemnifying parties be liable for the fees and expenses of
more than one counsel (in addition to any local counsel) separate from their own
counsel for all indemnified parties in connection with any one action or
separate but similar or related actions in the same jurisdiction arising out of
the same general allegations or circumstances.  No indemnifying party shall,
without the prior written consent of the indemnified parties, settle or
compromise or consent to the entry of any judgment with respect to any
litigation, or any investigation or proceeding by any governmental agency or
body, commenced or threatened, or any claim whatsoever in respect of which
indemnification or contribution could be sought under this Section 7 or Section
8 hereof (whether or not the indemnified parties are actual or potential parties
thereto), unless such settlement, compromise or consent (i) includes an
unconditional release of each indemnified party from all liability arising out
of such litigation, investigation, proceeding or claim and (ii) does not include
a statement as to or an admission of fault, culpability or a failure to act by
or on behalf of any indemnified party.

     (d) If at any time an indemnified party shall have requested an
indemnifying party to reimburse the indemnified party for fees and expenses of
counsel, such indemnifying party agrees that it shall be liable for any
settlement of the nature contemplated by Section 7 (a)(ii) hereof effected
without its written consent if (i) such settlement is entered into more than 45
days after receipt by such indemnifying party of the aforesaid request, (ii)
such indemnifying party shall have received notice of the terms of such
settlement at least 30 days prior to such settlement being entered into and
(iii) such indemnifying party shall not have reimbursed such indemnified party
in accordance with such request prior to the date of such settlement.

     SECTION 8.  Contribution.  If the indemnification provided for in Section 7
hereof is for any reason unavailable to or insufficient to hold harmless an
indemnified party in respect of any losses, liabilities, claims, damages or
expenses incurred by such indemnified party, as incurred, (i) in such proportion
as is appropriate to reflect the relative benefits received by the Fund and the
Adviser on the one hand and the Underwriter on the other hand from the offering
of the Shares pursuant to this Agreement or (ii) if the allocation provided by
clause (i) is not permitted by applicable law, in such proportion as is
appropriate to reflect not only the relative benefits referred to in clause (i)
above but also the relative fault of the Fund and the Adviser on the one hand
and of the Underwriter on the other hand in connection with the statements or
omissions which resulted in such losses, liabilities, claims, damages or
expenses, as well as any other relevant equitable considerations.

     The relative benefits received by the Fund and the Adviser on the one hand
and the Underwriter on the other hand in connection with the offering of the
Shares pursuant to this Agreement shall be deemed to be in the same respective
proportions as the total net proceeds from the offering of the Shares pursuant
to this Agreement (before deducting expenses) received 

                                       17
<PAGE>
 
by the Fund and the total underwriting discount received by the Underwriter, in
each case as set forth on the cover of the Prospectus, or, if Rule 434 is used,
the corresponding location on the term sheet, bear to the aggregate initial
public offering price of the Shares as set forth on such cover.

     The relative fault of the Fund and the Adviser on the one hand and the
Underwriter on the other hand shall be determined by reference to, among other
things, whether any such untrue or alleged untrue statement of a material fact
or omission or alleged omission to state a material fact relates to information
supplied by the Fund and the Adviser or by the Underwriter and the parties'
relative intent, knowledge, access to information and opportunity to correct or
prevent such statement or omission.

     The Fund, the Adviser and the Underwriter agree that it would not be just
and equitable if contribution pursuant to this Section 8 were determined by pro
rata allocation or by any other method of allocation which does not take account
of the equitable considerations referred to above in this Section 8.  The
aggregate amount of losses, liabilities, claims, damages and expenses incurred
by an indemnified party and referred to above in this Section 8 shall be deemed
to include any legal or other expenses reasonably incurred by such indemnified
party in investigating, preparing or defending against any litigation, or any
investigation or proceeding by any governmental agency or body, commenced or
threatened, or any claim whatsoever based upon any such untrue or alleged untrue
statement or omission or alleged omission.

     Notwithstanding the provisions of this Section 8, the Underwriter shall not
be required to contribute any amount in excess of the amount by which the total
price at which the Shares underwritten by it and distributed to the public were
offered to the public exceeds the amount of any damages which the Underwriter
has otherwise been required to pay by reason of any such untrue or alleged
untrue statement or omission or alleged omission.

     No person guilty of fraudulent misrepresentation (within the meaning of
Section 11(f) of the Securities Act) shall be entitled to contribution from any
person who was not guilty of such fraudulent misrepresentation.

     For purposes of this Section 8, each person, if any, who controls the
Underwriter within the meaning of Section 15 of the Securities Act shall have
the same rights to contribution as the Underwriter, and each officer or director
of the Fund and the Adviser, respectively, each director of the Fund who signed
the Registration Statement, and each person, if any, who controls the
Fund and the Adviser within the meaning of Section 15 of the Securities Act
shall have the same rights to contribution as the Fund and the Adviser,
respectively.

     SECTION 9.  Representations, Warranties and Agreements to Survive Delivery.
All representations, warranties and agreements contained in this Agreement or in
the Pricing Agreement, or contained in certificates of officers of the Fund or
of the Adviser submitted pursuant hereto, shall remain operative and in full
force and effect, regardless of any investigation made by or on behalf of any
Underwriter or controlling person, or by or on behalf of the Fund or the Adviser
and shall survive delivery of the Shares to the Underwriter.

                                       18
<PAGE>
 
     SECTION 10.  Termination of Agreement.  (a) The Underwriter may terminate
this Agreement by written notice to the Fund, at any time at or prior to Closing
Time (i) if there has been, since the time of execution of this Agreement or
since the respective dates as of which information is given in the Prospectus,
any material adverse change in the condition, financial or otherwise, or in the
earnings, business affairs or business prospects of the Fund or the Adviser,
whether or not arising in the ordinary course of business, or (ii) if there has
occurred any material adverse change in the financial markets in the United
States or elsewhere, any outbreak of hostilities or escalation thereof or other
calamity or crisis or any change or development involving a prospective change
in national or international political, financial or economic conditions, in
each case the effect of which is such as to make it, in the judgment of the
Underwriter impracticable to market the Shares or enforce contracts for the sale
of the Shares, or (iii) if trading in the Common Stock has been suspended or
materially limited by the Commission or if trading generally on either the New
York Stock Exchange or the American Stock Exchange or in the NASDAQ National
Market has been suspended or materially limited, or minimum or maximum prices
for trading have been fixed, or maximum ranges for prices for securities have
been required, by any of said exchanges or by such system or by order of the
Commission, the National Association of Securities Dealers, Inc. or any other
governmental authority, or (iv) if a banking moratorium has been declared by
Federal or New York authorities.

     (b)  If this Agreement is terminated pursuant to this Section 10, such
termination shall be without liability of any party to any other party except as
provided in Section 5 hereof, and provided further that Sections 1, 7, 8 and 9
hereof shall survive such termination and remain in full force and effect.

     SECTION 11.  Notices.  All notices and other communications hereunder shall
be in writing and shall be deemed to have been duly given if mailed or
transmitted by any standard form of written telecommunication.  Notices to the
Underwriter shall be directed to Merrill Lynch & Co., Merrill Lynch, Pierce,
Fenner & Smith Incorporated at Merrill Lynch World Headquarters, World Financial
Center, North Tower, New York, New York 10281-1201, Attention:  Shauna Holahan,
Director; notices to the Fund or to the Adviser shall be directed to each of
them at 800 Scudders Mill Road, Plainsboro, New Jersey 08536, Attention:  Arthur
Zeikel, President.

     SECTION 12.  Parties.  This Agreement and the Pricing Agreement shall inure
to the benefit of and be binding upon the Underwriter, the Fund, the Adviser and
their respective successors. Nothing expressed or mentioned in this Agreement or
in the Pricing Agreement is intended or shall be construed to give any person,
firm or corporation, other than the parties hereto and their respective
successors and the controlling persons and officers and directors referred to in
Sections 7 and 8 hereof and their heirs and legal representatives, any legal or
equitable right, remedy or claim under or in respect of this Agreement or any
provision herein contained. This Agreement and the Pricing Agreement and all
conditions and provisions hereof are intended to be for the sole and exclusive
benefit of the parties hereto and thereto and their respective successors, and
said controlling persons and officers and directors and their heirs and legal
representatives, and for the benefit of no other person, firm or corporation. No
purchaser of Shares from the Underwriter shall be deemed to be a successor
merely by reason of such purchase.

                                       19
<PAGE>
 
     SECTION 13.  Governing Law and Time.  This Agreement and the Pricing
Agreement shall be governed by and construed in accordance with the laws of the
State of New York applicable to agreements made and to be performed in said
State.  Specified times of day refer to New York City time.

                                       20
<PAGE>
 
     If the foregoing is in accordance with your understanding of our Agreement,
please sign and return to us a counterpart hereof, whereupon this instrument,
along with all counterparts, will become a single binding agreement between the
Underwriter and the Fund and the Adviser in accordance with its terms.


                              Very truly yours,

                              MUNIHOLDINGS CALIFORNIA INSURED
                                    FUND III, INC.


                              By:
                                 ---------------------------------
                                  Authorized Officer



                              FUND ASSET MANAGEMENT, L.P.


                              By:
                                 ---------------------------------
                                  Authorized Officer


Confirmed and Accepted,
as of the date
first above written:

MERRILL LYNCH, PIERCE, FENNER & SMITH
             INCORPORATED


By:
     ---------------------------------
     Authorized Signatory

                                       21
<PAGE>
 
                                                                       Exhibit A




                                       $

                 MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.
                            (a Maryland corporation)

                 AUCTION MARKET PREFERRED STOCK(R) ["AMPS"(R)]

                             ______ Series A Shares
                             ______ Series B Shares

                   Liquidation Preference $ 25,000 Per Share


                               PRICING AGREEMENT
                               -----------------



                                            __________ , 1998



MERRILL LYNCH & CO.
Merrill Lynch, Pierce, Fenner & Smith
         Incorporated
Merrill Lynch World Headquarters
World Financial Center
North Tower
New York, New York  10281-1201

Dear Sirs and Mesdames:

          Reference is made to the Purchase Agreement, dated _____________, 1998
(the "Purchase Agreement"), relating to the purchase by Merrill Lynch & Co.,
Merrill Lynch, Pierce, Fenner & Smith Incorporated (the "Underwriter") of _____
shares of Auction Market Preferred Stock(R), Series A ("Series A AMPS"), and
______ shares of Auction Market Preferred Stock(R), Series B ("Series B AMPS"),
each with a par value of $.10 per share and a liquidation preference of $25,000
per share plus an amount equal to accumulated but unpaid dividends (whether or
not earned or declared) (collectively, the "Shares") of MuniHoldings California
Insured Fund III, Inc. (the "Fund").

          Pursuant to Section 2 of the Purchase Agreement, the Fund agrees with
the Underwriter as follows:

______________________
(R) Registered trademark of Merrill Lynch & Co., Inc.
<PAGE>
 
1.  The initial public offering price per share for the Shares, determined as
provided in said Section 2, shall be $25,000 plus accumulated dividends, if any,
from the date of original issue.

          2.  The purchase price per share for the Shares to be paid by the
          Underwriter shall be $______ plus accumulated dividends, if any, from
          the date of original issue, being an amount equal to the initial
          public offering price set forth above less $___ per share.

          3.  The dividend rate for the Series A AMPS for the Initial Dividend
          Period ending __________, 1998 will be __%, and the dividend rate for
          the Series B AMPS for the Initial Dividend Period ending _________,
          1998 will be __%.

                                       2
<PAGE>
 
     If the foregoing is in accordance with your understanding of our agreement,
please sign and return to the Fund a counterpart hereof, whereupon this
instrument, along with all counterparts, will become a single binding agreement
between the Underwriter and the Fund in accordance with its terms.

                              Very truly yours,

                              MUNIHOLDINGS CALIFORNIA INSURED
                              FUND III, INC.



                              By:
                                  ----------------------------
                                  Authorized Officer



Confirmed and Accepted,
as of the date
first above written:

MERRILL LYNCH, PIERCE, FENNER & SMITH
            INCORPORATED



By:  
     -------------------------------
     Authorized Signatory

                                       3

<PAGE>
 
                                                                       Exhibit j

                          TABLE OF CONTENTS
                          -----------------                     
 
                                                             Page
                                                            ------
 
1.  Employment of Custodian and Property to be Held By
    It.........................................................   1
 
2.  Duties of the Custodian with Respect to Property
    of the Fund Held by the Custodian in the United States        1
 
   2.1    Holding Securities...................................   1
   2.2    Delivery of Securities...............................   2
   2.3    Registration of Securities...........................   4
   2.4    Bank Accounts........................................   4
   2.5    Availability of Federal Funds........................   4
   2.6    Collection of Income.................................   4
   2.7    Payment of Fund Monies...............................   5
   2.8    Liability for Payment in Advance of
          Receipt of Securities Purchased......................   6
   2.9    Appointment of Agents................................   6
   2.10   Deposit of Fund Assets in Securities System..........   6
   2.10A  Fund Assets Held in the Custodian's Direct
          Paper System.........................................   7
   2.11   Segregated Account...................................   8
   2.12   Ownership Certificates for Tax Purposes..............   9
   2.13   Proxies..............................................   9
   2.14   Communications Relating to Portfolio Securities......   9
   2.15   Reports to Fund by Independent Public Accountants....   9
 
3.  Duties of the Custodian with Respect to Property of
    the Fund Held Outside of the United States                    9
 
   3.1    Appointment of Foreign Sub-Custodians................   9
   3.2    Assets to be Held....................................  10
   3.3    Foreign Securities Systems...........................  10
   3.4    Agreements with Foreign Banking Institutions.........  10
   3.5    Access of Independent Accountants of the Fund........  10
   3.6    Reports by Custodian.................................  10
   3.7    Transactions in Foreign Custody Account..............  11
   3.8    Liability of Foreign Sub-Custodians..................  11
   3.9    Liability of Custodian...............................  11
   3.10   Reimbursement for Advances...........................  12
   3.11   Monitoring Responsibilities..........................  12
   3.12   Branches of U.S. Banks...............................  12
   3.13   Tax Law..............................................  12
<PAGE>
 
4.  Proper Instructions.....................................................  13
    
5.  Actions Permitted Without Express Authority.............................  13
    
6.  Evidence of Authority...................................................  13
    
7.  Duties of Custodian With Respect to the Books of Account and Calculation
    of Net Asset Value and Net Income.......................................  14
    
8.  Records.................................................................  14
    
9.  Opinion of Fund's Independent Accountants...............................  14
    
10. Compensation of Custodian...............................................  15
    
11. Responsibility of Custodian.............................................  15
    
12. Effective Period, Termination and Amendment.............................  16
    
13. Successor Custodian.....................................................  16
    
14. Interpretive and Additional Provisions..................................  17
    
15. Massachusetts Law to Apply..............................................  17
    
16. Prior Contracts.........................................................  17
    
17. Shareholder Communications Election.....................................  18
 
<PAGE>
 
     This Contract between MunuiHoldings California Insured Fund III, Inc., a
corporation organized and existing under the laws of the State of Maryland,
having its principal place of business at 800 Scudders Mill Road, Plainsboro,
New Jersey 08536 hereinafter called the "Fund", and State Street Bank and Trust
Company, a Massachusetts trust company, having its principal place of business
at 225 Franklin Street, Boston, Massachusetts, 02110, hereinafter called the
"Custodian", in consideration of the mutual covenants and agreements hereinafter
contained, the parties hereto agree as follows:

1.   Employment of Custodian and Property to be Held by It
     -----------------------------------------------------

     The Fund hereby employs the Custodian as the custodian of the assets of the
Fund, including securities which the Fund desires to be held in places within
the United States ("domestic securities") and securities it desires to be held
outside the United States ("foreign securities") pursuant to the provisions of
the Articles of Incorporation.  For purposes of this Contract, "domestic 
securities" and "foreign securities" each shall include agreements representing 
corporate loans and interests therein. The Fund agrees to deliver to the
Custodian all securities and cash of the Fund, and all payments of income,
payments of principal or capital distributions received by it with respect to
all securities owned by the Fund from time to time, and the cash consideration
received by it for such new or treasury shares of capital stock of the Fund
("Shares") as may be issued or sold from time to time. The Custodian shall not
be responsible for any property of the Fund held or received by the Fund and not
delivered to the Custodian.

     Upon receipt of "Proper Instructions" (within the meaning of Article 4),
the Custodian shall on behalf of the Fund from time to time employ one or more
sub-custodians, located in the United States but only in accordance with an
applicable vote by the Board of Directors of the Fund. The Custodian covenants
with the Fund that each agreement whereby the Custodian employs any such sub-
custodian shall provide that the sub-custodian will be liable to the Custodian
for losses and liabilities caused by the negligence, misfeasance, or willful
misconduct of the sub-custodian.  The Fund agrees that, so long as the Custodian
has complied with its obligation set forth in the preceding sentence, the
Custodian shall have no more or less responsibility or liability to the Fund on
account of any actions or omissions of any U.S. sub-custodian employed by it on
behalf of the Fund than any such sub-custodian has to the Custodian.  The
Custodian may employ as sub-custodian for the Fund's foreign securities the
foreign banking institutions and foreign securities depositories designated in
Schedule A hereto but only in accordance with the provisions of Article 3.

2.   Duties of the Custodian with Respect to Property of the Fund Held By the
     ------------------------------------------------------------------------
     Custodian in the United States
     ------------------------------

2.1  Holding Securities.  The Custodian shall hold and physically segregate for
     ------------------                                                        
     the account of the Fund all non-cash property, to be held by it in the
     United States including all domestic securities owned by the Fund, other
     than (a) securities which are maintained pursuant to Section 2.10 in a
     clearing agency which acts as a securities depository or in a book-entry
     system authorized by the U.S. Department of the Treasury (collectively
     referred to herein as "Securities System") and (b) commercial paper of an
     issuer for which State Street Bank and Trust Company acts as issuing and
     paying agent ("Direct Paper") which is deposited and/or maintained in the
     Direct Paper System of the Custodian (the "Direct Paper System") pursuant
     to Section 2.10A.
<PAGE>
 
2.2  Delivery of Securities.  The Custodian shall release and deliver domestic
     ----------------------                                                   
     securities owned by the Fund held by the Custodian or in a Securities
     System account of the Custodian or in the Custodian's Direct Paper book
     entry system account ("Direct Paper System Account") only upon receipt of
     Proper Instructions from the Fund, which may be continuing instructions
     when deemed appropriate by the parties, and only in the following cases:

     1)   Upon sale of such securities for the account of the Fund and receipt
          of payment therefor;

     2)   Upon the receipt of payment in connection with any repurchase
          agreement related to such securities entered into by the Fund;

     3)   In the case of a sale effected through a Securities System, in
          accordance with the provisions of Section 2.10 hereof;

     4)   To the depository agent in connection with tender or other similar
          offers for securities of the Fund;

     5)   To the issuer thereof or its agent when such securities are called,
          redeemed, retired or otherwise become payable; provided that, in any
          such case, the cash or other consideration is to be delivered to the
          Custodian;

     6)   To the issuer thereof, or its agent, for transfer into the name
          of the Fund or into the name of any nominee or nominees of the
          Custodian or into the name or nominee name of any agent appointed
          pursuant to Section 2.9 or into the name or nominee name of any sub-
          custodian appointed pursuant to Article 1; or for exchange for a
          different number of bonds, certificates or other evidence representing
          the same aggregate face amount or number of units; provided that, in
                                                             -------- 
          any such case, the new securities are to be delivered to the
          Custodian;

     7)   Upon the sale of such securities for the account of the Fund, to the
          broker or its clearing agent, against a receipt, for examination in
          accordance with "street delivery" custom; provided that in any such
          case, the Custodian shall have no responsibility or liability for any
          loss arising from the delivery of such securities prior to receiving
          payment for such securities except as may arise from the Custodian's
          own negligence or willful misconduct;

     8)   For exchange or conversion pursuant to any plan of merger,
          consolidation, recapitalization, reorganization or readjustment of the
          securities of the issuer of such securities, or pursuant to provisions
          for conversion contained in such securities, or pursuant to any
          deposit agreement; provided that, in any such case, the new securities
          and cash, if any, are to be delivered to the Custodian;

     9)   In the case of warrants, rights or similar securities, the surrender
          thereof in the exercise of such warrants, rights or similar securities
          or the surrender of interim 

                                       2
<PAGE>
 
          receipts or temporary securities for definitive securities; provided
          that, in any such case, the new securities and cash, if any, are to be
          delivered to the Custodian;

     10)  For delivery in connection with any loans of securities made by the
          Fund, but only against receipt of adequate collateral as agreed upon
                --- ----                                                      
          from time to time by the Custodian and the Fund, which may be in the
          form of cash or obligations issued by the United States government,
          its agencies or instrumentalities, except that in connection with any
          loans for which collateral is to be credited to the Custodian's
          account in the book-entry system authorized by the U.S. Department of
          the Treasury, the Custodian will not be held liable or responsible for
          the delivery of securities owned by the Fund prior to the receipt of
          such collateral except as may arise from the Custodian's own
          negligence or willful misconduct;

     11)  For delivery as security in connection with any borrowings by the Fund
          requiring a pledge of assets by the Fund, but only against receipt of
                                                    --- ----                   
          amounts borrowed;

     12)  For delivery in accordance with the provisions of any agreement among
          the Fund, the Custodian and a broker-dealer registered under the
          Securities Exchange Act of 1934 (the "Exchange Act") and a member of
          The National Association of Securities Dealers, Inc. ("NASD"),
          relating to compliance with the rules of The Options Clearing
          Corporation and of any registered national securities exchange, or of
          any similar organization or organizations, regarding escrow or other
          arrangements in connection with transactions by the Fund;

     13)  For delivery in accordance with the provisions of any agreement among
          the Fund, the Custodian, and a Futures Commission Merchant registered
          under the Commodity Exchange Act, relating to compliance with the
          rules of the Commodity Futures Trading Commission and/or any contract
          market, or any similar organization or organizations, regarding
          account deposits in connection with transactions by the Fund; and

     14)  For any other proper corporate purpose, but only upon receipt of, in
                                                  --- ----                    
          addition to Proper Instructions from the Fund, a certified copy of a
          resolution of the Board of Directors or of the Executive Committee
          signed by an officer of the Fund and certified by the Secretary or an
          Assistant Secretary, specifying the securities of the Fund to be
          delivered, setting forth the purpose for which such delivery is to be
          made, declaring such purpose to be a proper corporate purpose, and
          naming the person or persons to whom delivery of such securities shall
          be made.

2.3  Registration of Securities.  Domestic securities held by the Custodian
     --------------------------                                            
     (other than bearer securities) shall be registered in the name of the Fund
     or in the name of any nominee of the Fund or of any nominee of the
     Custodian which nominee shall be assigned exclusively to the Fund, unless
                                                                        ------
     the Fund has authorized in writing the appointment of a nominee to be used
     in common with other registered investment companies having the same
     investment adviser as the Fund, or in the name or nominee name of any agent
     appointed pursuant to Section 2.9 or in the name or nominee name of any 
     sub-custodian appointed pursuant to

                                       3
<PAGE>
 
     Article 1. All securities accepted by the Custodian on behalf of the Fund
     under the terms of this Contract shall be in "street name" or other good
     delivery form. If, however, the Fund directs the Custodian to maintain
     securities in "street name", the Custodian shall utilize all reasonable
     efforts to timely collect income due the Fund on such securities and to
     notify the Fund of relevant corporate actions including, without
     limitation, pendency of calls, maturities, tender or exchange offers.

2.4  Bank Accounts.  The Custodian shall open and maintain a separate bank
     -------------                                                        
     account or accounts in the United States in the name of the Fund, subject
     only to draft or order by the Custodian acting pursuant to the terms of
     this Contract, and shall hold in such account or accounts, subject to the
     provisions hereof, all cash received by it from or for the account of the
     Fund, other than cash maintained by the Fund in a bank account established
     and used in accordance with Rule 17f-3 under the Investment Company Act of
     1940.  Funds held by the Custodian for the Fund may be deposited by it to
     its credit as Custodian in the Banking Department of the Custodian or in
     such other banks or trust companies as it may in its discretion deem
     necessary or desirable; provided, however, that every such bank or trust
                             --------                                        
     company shall be qualified to act as a custodian under the Investment
     Company Act of 1940 and that each such bank or trust company and the funds
     to be deposited with each such bank or trust company shall be approved by
     vote of a majority of the Board of Directors of the Fund.  Such funds shall
     be deposited by the Custodian in its capacity as Custodian and shall be
     withdrawable by the Custodian only in that capacity.

2.5  Availability of Federal Funds.  Upon mutual agreement between the Fund and
     -----------------------------                                             
     the Custodian, the Custodian shall, upon the receipt of Proper Instructions
     from the Fund, make federal funds available to the Fund as of specified
     times agreed upon from time to time by the Fund and the Custodian in the
     amount of checks received in payment for Shares of the Fund which are
     deposited into the Fund's account.

2.6  Collection of Income.  Subject to the provisions of Section 2.3, the
     --------------------                                                
     Custodian shall collect on a timely basis all income and other payments
     with respect to registered domestic securities held hereunder to which the
     Fund shall be entitled either by law or pursuant to custom in the
     securities business, and shall collect on a timely basis all income and
     other payments with respect to bearer domestic securities if, on the date
     of payment by the issuer, such securities are held by the Custodian or its
     agent thereof and shall credit such income, as collected, to such Fund's
     custodian account.  Without limiting the generality of the foregoing, the
     Custodian shall detach and present for payment all coupons and other income
     items requiring presentation as and when they become due and shall collect
     interest when due on securities held hereunder.  Income due the Fund on
     securities loaned pursuant to the provisions of Section 2.2(10) shall be
     the responsibility of the Fund.  The Custodian will have no duty or
     responsibility in connection therewith, other than to exercise reasonable
     care in providing the Fund with such information or data as may be
     necessary to assist the Fund in arranging for the timely delivery to the
     Custodian of the income to which the Fund is properly entitled.

                                       4
<PAGE>
 
2.7  Payment of Fund Monies.  Upon receipt of Proper Instructions from the Fund,
     ----------------------                                                     
     which may be continuing instructions when deemed appropriate by the
     parties, the Custodian shall pay out monies of the Fund in the following
     cases only:

     1)   Upon the purchase of domestic securities, options, futures contracts
          or options on futures contracts for the Fund but only (a) against the
          delivery of such securities or evidence of title to such options,
          futures contracts or options on futures contracts to the Custodian (or
          any bank, banking firm or trust company doing business in the United
          States or abroad which is qualified under the Investment Company Act
          of 1940, as amended, to act as a custodian and has been designated by
          the Custodian as its agent for this purpose) registered in the name of
          the Fund or in the name of a nominee of the Custodian referred to in
          Section 2.3 hereof or in proper form for transfer; (b) in the case of
          a purchase effected through a Securities System, in accordance with
          the conditions set forth in Section 2.10 hereof; (c) in the case of a
          purchase involving the Direct Paper System, in accordance with the
          conditions set forth in Section 2.10A hereof; (d) in the case of
          repurchase agreements entered into between the Fund and the Custodian,
          or another bank, or a broker-dealer which is a member of NASD, (i)
          against delivery of the securities either in certificate form or
          through an entry crediting the Custodian's account at the Federal
          Reserve Bank with such securities or (ii) against delivery of the
          receipt evidencing purchase by the Fund of securities owned by the
          Custodian along with written evidence of the agreement by the
          Custodian to repurchase such securities from the Fund or (e) for
          transfer to a time deposit account of the Fund in any bank, whether
          domestic or foreign; such transfer may be effected prior to receipt of
          a confirmation from a broker and/or the applicable bank pursuant to
          Proper Instructions as defined in Article 4;
 
     2)   In connection with conversion, exchange or surrender of securities
          owned by the Fund as set forth in Section 2.2 hereof;

     3)   For the payment of any expense or liability incurred by the Fund,
          including but not limited to the following payments for the account of
          the Fund:  interest, taxes, management, accounting, transfer agent and
          legal fees, and operating expenses of the Fund whether or not such
          expenses are to be in whole or part capitalized or treated as deferred
          expenses;

     4)   For the payment of any dividends on Shares of the Fund declared
          pursuant to the governing documents of the Fund;

     5)   For payment of the amount of dividends received in respect of
          securities sold short;

     6)   For any other proper purpose, but only upon receipt of, in addition to
                                        --- ----                                
          Proper Instructions from the Fund, a certified copy of a resolution of
          the Board of Directors or of the Executive Committee of the Fund
          signed by an officer of the Fund and certified by its Secretary or an
          Assistant Secretary, specifying the amount of such payment, setting
          forth the purpose for which such payment is to be made, declaring 

                                       5
<PAGE>
 
          such purpose to be a proper purpose, and naming the person or persons
          to whom such payment is to be made.

2.8  Liability for Payment in Advance of Receipt of Securities Purchased.
     --------------------------------------------------------- ---------  
     Except as specifically stated otherwise in this Contract, in any and every
     case where payment for purchase of domestic securities for the account of
     the Fund is made by the Custodian in advance of receipt of the securities
     purchased in the absence of specific written instructions from the Fund to
     so pay in advance, the Custodian shall be absolutely liable to the Fund for
     such securities to the same extent as if the securities had been received
     by the Custodian.

2.9  Appointment of Agents.  The Custodian may at any time or times in its
     ---------------------                                                
     discretion appoint (and may at any time remove) any other bank or trust
     company which is itself qualified under the Investment Company Act of 1940,
     as amended, to act as a custodian, as its agent to carry out such of the
     provisions of this Article 2 as the Custodian may from time to time direct;
                                                                                
     provided, however, that the appointment of any agent shall not relieve the
     --------                                                                  
     Custodian of its responsibilities or liabilities hereunder.

2.10 Deposit of Fund Assets in Securities Systems.  The Custodian may deposit
     --------------------------------------------                            
     and/or maintain securities owned by the Fund in a clearing agency
     registered with the Securities and Exchange Commission under Section 17A of
     the Securities Exchange Act of 1934, which acts as a securities depository,
     or in the book-entry system authorized by the U.S. Department of the
     Treasury and certain federal agencies, collectively referred to herein as
     "Securities System" in accordance with applicable Federal Reserve Board and
     Securities and Exchange Commission rules and regulations, if any, and
     subject to the following provisions:

     1)   The Custodian may keep securities of the Fund in a Securities System
          provided that such securities are represented in an account
          ("Account") of the Custodian in the Securities System which shall not
          include any assets of the Custodian other than assets held as a
          fiduciary, custodian or otherwise for customers;

     2)   The records of the Custodian with respect to securities of the Fund
          which are maintained in a Securities System shall identify by book-
          entry those securities belonging to the Fund;

     3)   The Custodian shall pay for securities purchased for the account of
          the Fund upon (i) receipt of advice from the Securities System that
          such securities have been transferred to the Account, and (ii) the
          making of an entry on the records of the Custodian to reflect such
          payment and transfer for the account of the Fund.  The Custodian shall
          transfer securities sold for the account of the Fund upon (i) receipt
          of advice from the Securities System that payment for such securities
          has been transferred to the Account, and (ii) the making of an entry
          on the records of the Custodian to reflect such transfer and payment
          for the account of the Fund. Copies of all advices from the Securities
          System of transfers of securities for the account of the Fund shall
          identify the Fund, be maintained for the Fund by the Custodian and be
          provided to the Fund at its request. Upon request, the Custodian shall
          furnish the

                                       6
<PAGE>
 
          Fund confirmation of each transfer to or from the account of the Fund
          in the form of a written advice or notice and shall furnish to the
          Fund copies of daily transaction sheets reflecting each day's
          transactions in the Securities System for the account of the Fund;

     4)   The Custodian shall provide the Fund  with any report obtained by the
          Custodian on the Securities System's accounting system, internal
          accounting control and procedures for safeguarding securities
          deposited in the Securities System;

     5)   The Custodian shall have received from the Fund the initial or annual
          certificate, as the case may be, required by Article 12 hereof;

     6)   Anything to the contrary in this Contract notwithstanding, the
          Custodian shall be liable to the Fund  for any loss or damage to the
          Fund resulting from use of the Securities System by reason of any
          negligence, misfeasance or misconduct of the Custodian or any of its
          agents or of any of its or their officers or employees or from failure
          of the Custodian or any such agent to enforce effectively such rights
          as it may have against the Securities System; at the election of the
          Fund, it shall be entitled to be subrogated to the rights of the
          Custodian with respect to any claim against the Securities System or
          any other person which the Custodian may have as a consequence of any
          such loss or damage if and to the extent that the Fund has not been
          made whole for any such loss or damage.

2.10A  Fund Assets Held in the Custodian's Direct Paper System.  The Custodian
       -------------------------------------------------------                
     may deposit and/or maintain securities owned by the Fund in the Direct
     Paper System of the Custodian subject to the following provisions:

     1)   No transaction relating to securities in the Direct Paper System will
          be effected in the absence of Proper Instructions from the Fund;
 
     2)   The Custodian may keep securities of the Fund in the Direct Paper
          System only if such securities are represented in an account
          ("Account") of the Custodian in the Direct Paper System which shall
          not include any assets of the Custodian other than assets held as a
          fiduciary, custodian or otherwise for customers;

     3)   The records of the Custodian with respect to securities of the Fund
          which are maintained in the Direct Paper System shall identify by book
          entry those securities belonging to the Fund;

     4)   The Custodian shall pay for securities purchased for the account of
          the Fund upon the making of an entry on the records of the Custodian
          to reflect such payment and transfer of securities to the account of
          the Fund. The Custodian shall transfer securities sold for the account
          of the Fund upon the making of an entry on the records of the
          Custodian to reflect such transfer and receipt of payment for the
          account of the Fund;

                                       7
<PAGE>
 
     5)   The Custodian shall furnish the Fund confirmation of each transfer to
          or from the Fund, in the form of a written advice or notice, of Direct
          Paper on the next business day following such transfer and shall
          furnish to the Fund copies of daily transaction sheets reflecting each
          day's transaction in the Securities System for the account of the
          Fund;

     6)   The Custodian shall provide the Fund with any report on its system of
          internal accounting control as the Fund may reasonably request from
          time to time.

2.11 Segregated Account.  The Custodian shall upon receipt of Proper
     ------------------                                             
     Instructions from the Fund establish and maintain a segregated account or
     accounts for and on behalf of the Fund, into which account or accounts may
     be transferred cash and/or securities, including securities maintained in
     an account by the Custodian pursuant to Section 2.10 hereof, (i) in
     accordance with the provisions of any agreement among the Fund, the
     Custodian and a broker-dealer registered under the Exchange Act and a
     member of the NASD (or any futures commission merchant registered under the
     Commodity Exchange Act), relating to compliance with the rules of The
     Options Clearing Corporation and of any registered national securities
     exchange (or the Commodity Futures Trading Commission or any registered
     contract market), or of any similar organization or organizations,
     regarding escrow or other arrangements in connection with transactions by
     the Fund, (ii) for purposes of segregating cash or government securities in
     connection with options purchased, sold or written by the Fund or commodity
     futures contracts or options thereon purchased or sold by the Fund, (iii)
     for the purposes of compliance by the Fund with the procedures required by
     Investment Company Act Release No. 10666, or any subsequent release or
     releases of the Securities and Exchange Commission relating to the
     maintenance of segregated accounts by registered investment companies and
     (iv) for other proper corporate purposes, but only, in the case of clause
                                               --- ----                       
     (iv), upon receipt of, in addition to Proper Instructions from the Fund, a
     certified copy of a resolution of the Board of Directors or of the
     Executive Committee signed by an officer of the Fund and certified by the
     Secretary or an Assistant Secretary, setting forth the purpose or purposes
     of such segregated account and declaring such purposes to be proper
     corporate purposes.

2.12 Ownership Certificates for Tax Purposes.  The Custodian shall execute
     ---------------------------------------                              
     ownership and other certificates and affidavits for all federal and state
     tax purposes in connection with receipt of income or other payments with
     respect to domestic securities of the Fund held by it and in connection
     with transfers of securities.

2.13 Proxies.  The Custodian shall, with respect to the domestic securities held
     -------                                                                    
     hereunder, cause to be promptly executed by the registered holder of such
     securities, if the securities are registered otherwise than in the name of
     the Fund or a nominee of the Fund, all proxies, without indication of the
     manner in which such proxies are to be voted, and shall promptly deliver to
     the Fund such proxies, all proxy soliciting materials and all notices
     relating to such securities.

2.14 Communications Relating to Portfolio Securities.  Subject to the provisions
     -----------------------------------------------                            
     of Section 2.3, the Custodian shall transmit promptly to the Fund all
     written information (including, 

                                       8
<PAGE>
 
     without limitation, pendency of calls and maturities of domestic securities
     and expirations of rights in connection therewith and notices of exercise
     of call and put options written by the Fund and the maturity of futures
     contracts purchased or sold by the Fund) received by the Custodian from
     issuers of the securities being held for the Fund. With respect to tender
     or exchange offers, the Custodian shall transmit promptly to the Fund all
     written information received by the Custodian from issuers of the
     securities whose tender or exchange is sought and from the party (or his
     agents) making the tender or exchange offer. If the Fund desires to take
     action with respect to any tender offer, exchange offer or any other
     similar transaction, the Fund shall notify the Custodian at least three
     business days prior to the date on which the Custodian is to take such
     action.

2.15 Reports to Fund by Independent Public Accountants.  The Custodian shall
     -------------------------------------------------                      
     provide the Fund, at such times as the Fund may reasonably require, with
     reports by independent public accountants on the accounting system,
     internal accounting control and procedures for safeguarding securities,
     futures contracts and options on futures contracts, including securities
     deposited and/or maintained in a Securities System, relating to the
     services provided by the Custodian under this Contract; such reports, shall
     be of sufficient scope and in sufficient detail, as may reasonably be
     required by the Fund to provide reasonable assurance that any material
     inadequacies would be disclosed by such examination, and, if there are no
     such inadequacies, the reports shall so state.

3.   Duties of the Custodian with Respect to Property of the Fund Held Outside
     -------------------------------------------------------------------------
     of the United States
     --------------------

3.1  Appointment of Foreign Sub-Custodians.  The Fund hereby authorizes and
     -------------------------------------                                 
     instructs the Custodian to employ as sub-custodians for the Fund's
     securities and other assets maintained outside the United States the
     foreign banking institutions and foreign securities depositories designated
     on Schedule A hereto ("foreign sub-custodians").  Upon receipt of "Proper
     Instructions", as defined in Section 4 of this Contract, together with a
     certified resolution of the Fund's Board of Directors, the Custodian and
     the Fund may agree to amend Schedule A hereto from time to time to
     designate additional foreign banking institutions and foreign securities
     depositories to act as sub-custodian.  Upon receipt of Proper Instructions,
     the Fund may instruct the Custodian to cease the employment of any one or
     more such sub-custodians for maintaining custody of the Fund's assets.

3.2  Assets to be Held.  The Custodian shall limit the securities and other
     -----------------                                                     
     assets maintained in the custody of the foreign sub-custodians to:  (a)
     "foreign securities", as defined in paragraph (c)(1) of Rule 17f-5 under
     the Investment Company Act of 1940, and (b) cash and cash equivalents in
     such amounts as the Custodian or the Fund may determine to be reasonably
     necessary to effect the Fund's foreign securities transactions. The
     Custodian shall identify on its books as belonging to the Fund, the foreign
     securities of the Fund held by each foreign sub-custodian.

3.3  Foreign Securities Depositories.  Except as may otherwise be agreed upon in
     -------------------------------                                            
     writing by the Custodian and the Fund, assets of the Fund shall be
     maintained in foreign securities depositories only through arrangements
     implemented by the foreign banking institutions 

                                       9
<PAGE>
 
     serving as sub-custodians pursuant to the terms hereof. Where possible,
     such arrangements shall include entry into agreements containing the
     provisions set forth in Section 3.4 hereof.

3.4  Agreements with Foreign Banking Institutions.  Each agreement with a
     --------------------------------------------                        
     foreign banking institution shall be substantially in the form set forth in
     Exhibit 1 hereto and shall provide that:  (a) the assets of the Fund will
     not be subject to any right, charge, security interest, lien or claim of
     any kind in favor of the foreign banking institution or its creditors or
     agent, except a claim of payment for their safe custody or administration;
     (b) beneficial ownership for the assets of the Fund will be freely
     transferable without the payment of money or value other than for custody
     or administration; (c) adequate records will be maintained identifying the
     assets as belonging to the Fund; (d) officers of or auditors employed by,
     or other representatives of the Custodian, including to the extent
     permitted under applicable law the independent public accountants for the
     Fund, will be given access to the books and records of the foreign banking
     institution relating to its actions under its agreement with the Custodian;
     and (e) assets of the Fund held by the foreign sub-custodian will be
     subject only to the instructions of the Custodian or its agents.

3.5  Access of Independent Accountants of the Fund.  Upon request of the Fund,
     ---------------------------------------------                            
     the Custodian will use all reasonable efforts to arrange for the
     independent accountants of the Fund to be afforded access to the books and
     records of any foreign banking institution employed as a foreign sub-
     custodian insofar as such books and records relate to the performance of
     such foreign banking institution under its agreement with the Custodian.

3.6  Reports by Custodian.  The Custodian will supply to the Fund from time to
     --------------------                                                     
     time, as mutually agreed upon, statements in respect of the securities and
     other assets of the Fund held by foreign sub-custodians, including but not
     limited to an identification of entities having possession of the Fund
     securities and other assets and advices or notifications of any transfers
     of securities to or from each custodial account maintained by a foreign
     banking institution for the Custodian indicating, as to securities acquired
     for the Fund, the identity of the entity having physical possession of such
     securities.

3.7  Transactions in Foreign Custody Account.  (a) Except as otherwise provided
     ---------------------------------------                                   
     in paragraph (b) of this Section 3.7, the provision of Sections 2.2 and 2.7
     of this Contract shall apply, mutatis mutandis to the foreign securities of
                                   ------- --------                             
     the Fund held outside the United States by foreign sub-custodians;  (b)
     notwithstanding any provision of this Contract to the contrary, settlement
     and payment for securities received for the account of the Fund and
     delivery of securities maintained for the account of the Fund may be
     effected in accordance with the customary established securities trading or
     securities processing practices and procedures in the jurisdiction or
     market in which the transaction occurs, including, without limitation,
     delivering securities to the purchaser thereof or to a dealer therefor (or
     an agent for such purchaser or dealer) against a receipt with the
     expectation of receiving later payment for such securities from such
     purchaser or dealer; and (c) Securities maintained in the custody of a
     foreign sub-custodian may be maintained in the name of such entity's
     nominee to the same extent as set forth in Section 2.3 of this Contract,
     and the Fund agrees to hold any such nominee harmless from any liability as
     a holder of record of such securities.

                                       10
<PAGE>
 
3.8  Liability of Foreign Sub-Custodians.  Each agreement pursuant to which the
     -----------------------------------                                       
     Custodian employs a foreign banking institution as a foreign sub-custodian
     shall require the institution to exercise reasonable care in the
     performance of its duties and to indemnify, and hold harmless, the
     Custodian and the Fund from and against any loss, damage, cost, expense,
     liability or claim arising out of or in connection with the institution's
     performance of such obligations.  At the election of the Fund, it shall be
     entitled to be subrogated to the rights of the Custodian with respect to
     any claims against a foreign banking institution as a consequence of any
     such loss, damage, cost, expense, liability or claim if and to the extent
     that the Fund has not been made whole for any such loss, damage, cost,
     expense, liability or claim.

3.9  Liability of Custodian.  The Custodian shall be liable for the acts or
     ----------------------                                                
     omissions of a foreign banking institution to the same extent if such acts
     or omissions were those of the Custodian directly, provided that,
     regardless of whether assets are maintained in the custody of a foreign
     banking institution, a foreign securities depository or a branch of a U.S.
     bank as contemplated by paragraph 3.12 hereof, the Custodian shall not be
     liable for any loss, damage, cost, expense, liability or claim resulting
     from nationalization, expropriation, currency restrictions, or acts of war
     or terrorism, acts of God, or other occurrences beyond the sub-custodian's
     reasonable control.  Notwithstanding the foregoing provisions of this
     paragraph 3.9, in delegating custody duties to State Street London Ltd.,
     the Custodian shall not be relieved of any responsibility to the Fund for
     any loss due to such delegation, except such loss as may result from (a)
     political risk (including, but not limited to, exchange control
     restrictions, confiscation, expropriation, nationalization, insurrection,
     civil strife or armed hostilities) or (b) other losses (excluding a
     bankruptcy or insolvency of State Street London Ltd. not caused by
     political risk) due to acts of God, nuclear incident or other losses under
     circumstances where the Custodian and State Street London Ltd. have
     exercised reasonable care.

3.10 Reimbursement for Advances.  If the Fund requires the Custodian to advance
     --------------------------                                                
     cash or securities for any purpose including the purchase or sale of
     foreign exchange or of contracts for foreign exchange, or in the event that
     the Custodian or its nominee shall incur or be assessed any taxes, charges,
     expenses, assessments, claims or liabilities in connection with the
     performance of this Contract, except such as may arise from its or its
     nominee's own negligent action, negligent failure to act or willful
     misconduct, any property at any time held for the account of the Fund shall
     be security therefor and should the Fund fail to repay the Custodian
     promptly, the Custodian shall be entitled to utilize available cash and to
     dispose of the Fund's assets to the extent necessary to obtain
     reimbursement.

3.11 Monitoring Responsibilities.  The Custodian shall furnish annually to the
     ---------------------------                                              
     Fund, during the month of June, information concerning the foreign sub-
     custodians employed by the Custodian.  Such information shall be similar in
     kind and scope to that furnished to the Fund in connection with the initial
     approval of this Contract.  In addition, the Custodian will promptly inform
     the Fund in the event that the Custodian learns of a material adverse
     change in the financial condition of a foreign sub-custodian or any
     material loss of the assets of the Fund or in the case of any foreign 

                                       11
<PAGE>
 
     sub-custodian not the subject of an exemptive order from the Securities and
     Exchange Commission is notified by such foreign sub-custodian that there
     appears to be a substantial likelihood that its shareholders' equity will
     decline below $200 million (U.S. dollars or the equivalent thereof) or that
     its shareholders' equity has declined below $200 million (in each case
     computed in accordance with generally accepted U.S. accounting principles).

3.12 Branches of U.S. Banks.  (a) Except as otherwise set forth in this
     ----------------------                                            
     Contract, the provisions hereof shall not apply where the custody of the
     Fund's assets are maintained in a foreign branch of a banking institution
     which is a "bank" as defined by Section 2(a)(5) of the Investment Company
     Act of 1940 meeting the qualification set forth in Section 26(a) of said
     Act.  The appointment of any such branch as a sub-custodian shall be
     governed by paragraph 1 of this Contract.  (b) Cash held for the Fund in
     the United Kingdom shall be maintained in an interest bearing account
     established for the Fund with the Custodian's London branch, which account
     shall be subject to the direction of the Custodian, State Street London
     Ltd. or both.

3.13 Tax Law.  The Custodian shall have no responsibility or liability for any
     -------                                                                  
     obligations now or hereafter imposed on the Fund or the Custodian as
     custodian of the Fund by the tax law of the United States of America or any
     state or political subdivision thereof except for liabilities arising from
     the Custodian's failure to exercise reasonable care in the execution of any
     instructions received from the Fund with respect to withholding or payment
     of taxes.  It shall be the responsibility of the Fund to notify the
     Custodian of the obligations imposed on the Fund or the Custodian as
     custodian of the Fund by the tax law of jurisdictions other than those
     mentioned in the above sentence, including responsibility for withholding
     and other taxes, assessments or other governmental charges, certifications
     and governmental reporting.  The sole responsibility of the Custodian with
     regard to such tax law shall be to use reasonable efforts to assist the
     Fund with respect to any claim for exemption or refund under the tax law of
     jurisdictions for which the Fund has provided such information.

4.   Proper Instructions
     -------------------

     Proper Instructions as used throughout this Contract means a writing signed
or initialed by one or more person or persons as the Board of Directors shall
have from time to time authorized.  Each such writing shall set forth the
specific transaction or type of transaction involved, including a specific
statement of the purpose for which such action is requested.  Oral instructions
will be considered Proper Instructions if the Custodian reasonably believes them
to have been given by a person authorized to give such instructions with respect
to the transaction involved. The Fund shall cause all oral instructions to be
confirmed in writing. Upon receipt of a certificate of the Secretary or an
Assistant Secretary as to the authorization by the Board of Directors of the
Fund accompanied by a detailed description of procedures approved by the Board
of Directors, Proper Instructions may include communications effected directly
between electro-mechanical or electronic devices provided that the Board of
Directors and the Custodian are satisfied that such procedures afford adequate
safeguards for the Fund's assets. For purposes of this Section, Proper
Instructions shall include instructions received by the Custodian pursuant to
any three-party agreement which requires a segregated asset account in
accordance with Section 2.11.

5.   Actions Permitted without Express Authority
     -------------------------------------------

                                       12
<PAGE>
 
     The Custodian may in its discretion, without express authority from the
     Fund:

     1)   make payments to itself or others for minor expenses of handling
          securities or other similar items relating to its duties under this
          Contract, provided that all such payments shall be accounted for to
                    --------                                                 
          the Fund and provided that the Fund shall not object to such payments;

     2)   surrender securities in temporary form for securities in definitive
          form;

     3)   endorse for collection checks, drafts and other negotiable
          instruments; and

     4)   in general, attend to all non-discretionary details in connection with
          the sale, exchange, substitution, purchase, transfer and other
          dealings with the securities and property of the Fund except as
          otherwise directed by the Board of Directors of the Fund.



6.   Evidence of Authority
     ---------------------

     The Custodian shall be protected in acting upon any instructions, notice,
request, consent, certificate or other instrument or paper reasonably believed
by it to be genuine and to have been properly executed by or on behalf of the
Fund.  The Custodian may receive and accept a certified copy of a vote of the
Board of Directors of the Fund as conclusive evidence (a) of the authority of
any person to act in accordance with such vote or (b) of any determination or of
any action by the Board of Directors pursuant to the Articles of Incorporation
as described in such vote, and such vote may be considered as in full force and
effect until receipt by the Custodian of written notice to the contrary.

7.   Duties of Custodian with Respect to the Books of Account and Calculation of
     ---------------------------------------------------------------------------
     Net Asset Value and Net Income
     ------------------------------

     The Custodian shall cooperate with and supply necessary information to the
entity or entities appointed by the Board of Directors of the Fund to keep the
books of account of the Fund and/or compute the net asset value per share of the
outstanding Shares of the Fund or, if directed in writing to do so by the Fund,
shall itself keep such books of account and/or compute such net asset value per
share. If so directed, the Custodian shall also calculate weekly the net income
of the Fund as described in the Fund's currently effective prospectus and shall
advise the Fund and the Transfer Agent weekly of the total amounts of such net
income and, if instructed in writing by an officer of the Fund to do so, shall
advise the Transfer Agent periodically of the division of such net income among
its various components. The calculations of the net asset value per share and
the weekly income of the Fund shall be made at the time or times described from
time to time in the Fund's currently effective prospectus.

8.   Records
     -------

                                       13
<PAGE>
 
     The Custodian shall with respect to the Fund create and maintain all
records relating to its activities and obligations under this Contract in such
manner as will meet the obligations of the Fund under the Investment Company Act
of 1940, as amended, with particular attention to Section 31 thereof and Rules
31a-1 and 31a-2 thereunder.  All such records shall be the property of the Fund
and shall at all times during the regular business hours of the Custodian be
open for inspection by duly authorized officers, employees or agents of the Fund
and employees and agents of the Securities and Exchange Commission.  The
Custodian shall, at the Fund's request, supply the Fund with a tabulation of
securities owned by the Fund and held by the Custodian and shall, when requested
to do so by the Fund and for such compensation as shall be agreed upon between
the Fund and the Custodian, include certificate numbers in such tabulations.

9.   Opinion of Fund's Independent Accountant
     ----------------------------------------

     The Custodian shall take all reasonable action, as the Fund may from time
to time request, to obtain from year to year favorable opinions from the Fund's
independent accountants with respect to its activities hereunder in connection
with the preparation of the Fund's Form N-2, and Form N-SAR or other annual
reports to the Securities and Exchange Commission and with respect to any other
requirements of such Commission.

10.  Compensation of Custodian
     -------------------------

     The Custodian shall be entitled to reasonable compensation for its services
and expenses as Custodian, as agreed upon from time to time between the Fund and
the Custodian.

11.  Responsibility of Custodian
     ---------------------------

     So long as and to the extent that it is in the exercise of reasonable care,
the Custodian shall not be responsible for the title, validity or genuineness of
any property or evidence of title thereto received by it or delivered by it
pursuant to this Contract and shall be held harmless in acting upon any notice,
request, consent, certificate or other instrument reasonably believed by it to
be genuine and to be signed by the proper party or parties, including any
futures commission merchant acting pursuant to the terms of a three-party
futures or options agreement.  The Custodian shall be held to the exercise of
reasonable care in carrying out the provisions of this Contract, but shall be
kept indemnified by and shall be without liability to the Fund for any action
taken or omitted by it in good faith without negligence, misfeasance or willful
misconduct. It shall be entitled to rely on and may act upon advice of counsel
(who may be counsel for the Fund) on all matters, and shall be without liability
for any action reasonably taken or omitted pursuant to such advice.

     The Custodian shall be liable for the acts or omissions of a foreign
banking institution appointed pursuant to the provisions of Article 3 as
provided in Section 3.9 hereof and, regardless of whether assets are maintained
in the custody of a foreign banking institution, a foreign securities depository
or a branch of a U.S. bank as contemplated by paragraph 3.12 hereof, the
Custodian shall not be liable for any loss, damage, cost, expense, liability or
claim resulting from, or caused by nationalization, expropriation, currency
restrictions, or acts of war or terrorism, acts of God, or other occurrences
beyond the Custodian's or sub-custodian's reasonable control.

                                       14
<PAGE>
 
     If the Fund requires the Custodian to take any action with respect to
securities, which action involves the payment of money or which action may, in
the opinion of the Custodian, result in the Custodian or its nominee assigned to
the Fund being liable for the payment of money or incurring liability of some
other form, the Fund, as a prerequisite to requiring the Custodian to take such
action, shall provide indemnity to the Custodian in an amount and form
satisfactory to it.

     If the Fund requires the Custodian, its affiliates, subsidiaries or agents,
to advance cash or securities for any purpose (including but not limited to
securities settlements, foreign exchange contracts and assumed settlement) for
the benefit of the Fund including the purchase or sale of foreign exchange or of
contracts for foreign exchange or in the event that the Custodian or its nominee
shall incur or be assessed any taxes, charges, expenses, assessments, claims or
liabilities in connection with the performance of this Contract, except such as
may arise from its or its nominee's own negligent action, negligent failure to
act or willful misconduct, any property at any time held for the account of the
Fund shall be security therefor and should the Fund fail to repay the Custodian
promptly, the Custodian shall be entitled to utilize available cash and to
dispose of the Fund's assets to the extent necessary to obtain reimbursement.

12.  Effective Period, Termination and Amendment
     -------------------------------------------

     This Contract shall become effective as of its execution, shall continue in
full force and effect until terminated as hereinafter provided, may be amended
at any time by mutual agreement of the parties hereto and may be terminated by
either party by an instrument in writing delivered or mailed, postage prepaid to
the other party, such termination to take effect not sooner than thirty (30)
days after the date of such delivery or mailing; provided, however that the
                                                 --------                  
Custodian shall not act under Section 2.10 hereof in the absence of receipt of
an initial certificate of the Secretary or an Assistant Secretary of the Fund
that the Board of Directors of the Fund has approved the initial use of a
particular Securities System by the Fund, as required by Rule 17f-4 under the
Investment Company Act of 1940, as amended, and that the Custodian shall not act
under Section 2.10A hereof in the absence of receipt of an initial certificate
of the Secretary or an Assistant Secretary of the Fund that the Board of
Directors of the Fund has approved the initial use of the Direct Paper System by
the Fund; provided further, however, that the Fund shall not amend or terminate
          -------- -------                                                     
this Contract in contravention of any applicable federal or state regulations,
or any provision of the Articles of Incorporation, and further provided, that
the Fund may at any time by action of its Board of Directors (i) substitute
another bank or trust company for the Custodian by giving notice as described
above to the Custodian, or (ii) immediately terminate this Contract in the event
of the appointment of a conservator or receiver for the Custodian by the
Comptroller of the Currency or upon the happening of a like event at the
direction of an appropriate regulatory agency or court of competent
jurisdiction.

     Upon termination of the Contract, the Fund shall pay to the Custodian such
compensation as may be due as of the date of such termination and shall likewise
reimburse the Custodian for its costs, expenses and disbursements.

13.  Successor Custodian
     -------------------

                                       15
<PAGE>
 
     If a successor custodian for the Fund shall be appointed by the Board of
Directors of the Fund, the Custodian shall, upon termination, deliver to such
successor custodian at the office of the Custodian, duly endorsed and in the
form for transfer, all securities of the Fund then held by it hereunder and
shall transfer to an account of the successor custodian all of the securities of
the Fund held in a Securities System.

     If no such successor custodian shall be appointed, the Custodian shall, in
like manner, upon receipt of a certified copy of a vote of the Board of
Directors of the Fund, deliver at the office of the Custodian and transfer such
securities, funds and other properties in accordance with such vote.

     In the event that no written order designating a successor custodian or
certified copy of a vote of the Board of Directors of the Fund shall have been
delivered to the Custodian on or before the date when such termination shall
become effective, then the Custodian shall have the right to deliver to a bank
or trust company, which is a "bank" as defined in the Investment Company Act of
1940, as amended, doing business in Boston, Massachusetts, of its own selection,
having an aggregate capital, surplus, and undivided profits, as shown by its
last published report, of not less than $25,000,000, all securities, funds and
other properties held by the Custodian on behalf of the Fund and all instruments
held by the Custodian relative thereto and all other property held by it under
this Contract on behalf of the Fund and to transfer to an account of such
successor custodian all of the securities of each the Fund held in any
Securities System.  Thereafter, such bank or trust company shall be the
successor of the Custodian under this Contract.

     In the event that securities, funds and other properties remain in the
possession of the Custodian after the date of termination hereof owing to
failure of the Fund to procure the certified copy of the vote referred to or of
the Board of Directors of the Fund to appoint a successor custodian, the
Custodian shall be entitled to fair compensation for its services during such
period as the Custodian retains possession of such securities, funds and other
properties and the provisions of this Contract relating to the duties and
obligations of the Custodian shall remain in full force and effect.

14.  Interpretive and Additional Provisions
     --------------------------------------

     In connection with the operation of this Contract, the Custodian and the
Fund may from time to time agree on such provisions interpretive of or in
addition to the provisions of this Contract as may in their joint opinion be
consistent with the general tenor of this Contract.  Any such interpretive or
additional provisions shall be in a writing signed by both parties and shall be
annexed hereto, provided that no such interpretive or additional provisions
                --------                                                   
shall contravene any applicable federal or state regulations or any provision of
the Articles of Incorporation of the Fund. No interpretive or additional
provisions made as provided in the preceding sentence shall be deemed to be an
amendment of this Contract.


15.  Massachusetts Law to Apply
     --------------------------

     This Contract shall be construed and the provisions thereof interpreted
under and in accordance with laws of The Commonwealth of Massachusetts.

                                       16
<PAGE>
 
16.  Prior Contracts
     ---------------

     This Contract supersedes and terminates, as of the date hereof, all prior
contracts between the Fund  and the Custodian relating to the custody of the
Fund's assets.

                                       17
<PAGE>
 
17.  Shareholder Communications Election
     -----------------------------------

     Securities and Exchange Commission Rule 14b-2 requires banks which hold
securities for the account of customers to respond to requests by issuers of
securities for the names, addresses and holdings of beneficial owners of
securities of that issuer held by the bank unless the beneficial owner has
expressly objected to disclosure of this information.  In order to comply with
the rule, the Custodian needs the Fund to indicate whether it authorizes the
Custodian to provide the Fund's name, address, and share position to requesting
companies whose securities the Fund owns.  If the Fund tells the Custodian "no",
the Custodian will not provide this information to requesting companies.  If the
Fund tells the Custodian "yes" or does not check either "yes" or "no" below, the
Custodian is required by the rule to treat the Fund as consenting to disclosure
of this information for all securities owned by the Fund or any funds or
accounts established by the Fund.  For the Fund's protection, this rule
prohibits the requesting company from using the Fund's name and address for any
purpose other than corporate communications.  Please indicate below whether the
Fund consents or objects by checking one of the alternatives below.

  YES [ ]           The Custodian is authorized to release the Fund's name,
                    address, and share positions.

  NO  [X]           The Custodian is not authorized to release the Fund's name,
                    address, and share positions.

                                       18
<PAGE>
 
     IN WITNESS WHEREOF, each of the parties has caused this instrument to be
executed in its name and on its behalf by its duly authorized representative and
its seal to be hereunder affixed as of the_____________day of______________,
1998.


ATTEST                        MuniHoldings California Insured Fund III, Inc.



- ------------------            By:
Name:                            _____________________________________________
                                 Name:
                                 Title:


ATTEST                        STATE STREET BANK AND TRUST COMPANY



- ------------------            By:  
Name:                            _____________________________________________
                                 Name:
                                 Title:
<PAGE>
 
 

                        ADDENDUM TO CUSTODIAN CONTRACT
                        ------------------------------


WHEREAS, the Board of Directors (the "Board") of Muniholdings California Insured
Fund III, Inc. (the "Fund") has adopted a resolution appointing the Custodian as
Foreign Custody Manager of the Fund pursuant to the Rule 17f-5 Procedures and
Guidelines previously adopted by the Board (the "Procedures and Guidelines"), a
copy of which is attached hereto as Exhibit A, Muniholdings California Insured
Fund III, Inc. (the "Fund") and State Street Bank and Trust Company (the
"Custodian") hereby enter into this Addendum to the Custody Contract dated
______________, 1998 between the Fund and the Custodian (the "Contract");

WHEREAS, each party wishes to enter into this Addendum to the Contract;

NOW, THEREFORE, for such good and valuable consideration as is recited in the
Contract, the Fund and the Custodian agree that:

Article III of the Contract is hereby amended, revised and superceded to the
extent that such Article is inconsistent with the Procedures and Guidelines.
Each of the Fund and the Custodian acknowledge that they are currently
developing further mutually agreeable contract procedures and provisions
pursuant to the Procedures and Guidelines.

     IN WITNESS WHEREOF, each of the parties has caused this instrument to be
executed in its name and on its behalf by its duly authorized representative as
of the ___________ day of ___________, 1998 .



ATTEST                           MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.




_____________________            By:___________________________
Name:                               Name:_____________________
                                    Title:____________________



ATTEST                           STATE STREET BANK AND TRUST COMPANY


                    
___________________________      By:______________________________
Name:                               Name: 
Title:                              Title:


<PAGE>
 
                                                                  EXHIBIT (K)(1)


================================================================================

                                   REGISTRAR,

                     TRANSFER AGENCY AND SERVICE AGREEMENT

                                    between

                MuniHoldings California Insured Fund III, Inc.

                                      and

                      STATE STREET BANK AND TRUST COMPANY



closed/trust
2B193

================================================================================
<PAGE>
 
                               TABLE OF CONTENTS
                               -----------------

ARTICLE 1 TERMS OF APPOINTMENT; DUTIES OF THE BANK                      3

ARTICLE 2 FEES AND EXPENSES                                             5

ARTICLE 3 REPRESENTATIONS AND WARRANTIES OF THE BANK                    5

ARTICLE 4 REPRESENTATIONS AND WARRANTIES OF THE FUND                    6

ARTICLE 5 DATA ACCESS AND PROPRIETARY INFORMATION                       6

ARTICLE 6 INDEMNIFICATION                                               9
                                                                       
ARTICLE 7 STANDARD OF CARE                                             10

ARTICLE 8  COVENANTS OF THE FUND AND THE BANK                          10

ARTICLE 9 TERMINATION OF AGREEMENT                                     11

ARTICLE 10 ASSIGNMENT                                                  12

ARTICLE 11 AMENDMENT                                                   12

ARTICLE 12 MASSACHUSETTS LAW TO APPLY                                  12

ARTICLE 13 FORCE MAJEURE                                               13

ARTICLE 14 CONSEQUENTIAL DAMAGES                                       13

ARTICLE 15 MERGER OF AGREEMENT                                         13

ARTICLE 16 SURVIVAL                                                    13

ARTICLE 17 SEVERABILITY                                                13

ARTICLE 18 COUNTERPARTS                                                14

                                       2
<PAGE>
 
                REGISTRAR, TRANSFER AGENCY AND SERVICE AGREEMENT
                ------------------------------------------------
                                        

          AGREEMENT made as of the      day of    , 1998, by and between 
                                   ----        ---
MuniHoldings California Insured Fund III, Inc., a corporation organized and
existing under the laws of the State of Maryland, having its principal office
and place of business at 800 Scudders Mill Road, Plainsboro, NJ 08536 (the
"Fund"), and STATE STREET BANK AND TRUST COMPANY, a Massachusetts trust company
having its principal office and place of business at 225 Franklin Street,
Boston, Massachusetts 02110 (the "Bank").

          WHEREAS, the Fund desires to appoint the Bank as its registrar,
transfer agent, dividend disbursing agent and agent in connection with certain
other activities and the Bank desires to accept such appointment;

          NOW, THEREFORE, in consideration of the mutual covenants herein
contained, the parties hereto agree as follows:

ARTICLE 1  TERMS OF APPOINTMENT; DUTIES OF THE BANK

          1.01  Subject to the terms and conditions set forth in this Agreement,
the Fund hereby employs and appoints the Bank to act as, and the Bank agrees to
act as registrar, transfer agent for the Fund's authorized and issued shares of
its common stock ("Shares"), dividend disbursing agent and agent in connection
with any dividend reinvestment plan as set out in the prospectus of the Fund,
corresponding to the date of this Agreement.

           1.02  The Bank agrees that it will perform the following services:

           (a)   In accordance with procedures established from time to time by
agreement between the Fund and the Bank, the Bank shall:
               
                 (i)  Issue and record the appropriate number of Shares as
               authorized and hold such Shares in the appropriate Shareholder
               account;

<PAGE>
 
               (ii)    Effect transfers of Shares by the registered owners
               thereof upon receipt of appropriate documentation;

               (iii)   Prepare and transmit payments for dividends and
               distributions declared by the Fund;

               (iv)    Act as agent for Shareholders pursuant to the dividend
               reinvestment and cash purchase plan as amended from time to time
               in accordance with the terms of the agreement to be entered into
               between the Shareholders and the Bank in substantially the form
               attached as Exhibit A hereto;

               (v)     Issue replacement certificates for those certificates
               alleged to have been lost, stolen or destroyed upon receipt by
               the Bank of indemnification satisfactory to the Bank and
               protecting the Bank and the Fund, and the Bank at its option, may
               issue replacement certificates in place of mutilated stock
               certificates upon presentation thereof and without such
               indemnity.

      (b) In addition to and neither in lieu nor in contravention of the
services set forth in the above paragraph (a), the Bank shall:  (i) perform all
of the customary services of a registrar, transfer agent, dividend disbursing
agent and agent of the dividend reinvestment and cash purchase plan as described
in Article 1 consistent with those requirements in effect as of the date of this
Agreement.  The detailed definition, frequency, limitations and associated costs
(if any) set out in the attached fee schedule, include but are not limited to:
maintaining all Shareholder accounts, preparing Shareholder meeting lists,
mailing proxies, and mailing Shareholder reports to current Shareholders,
withholding taxes on U.S. resident and non-resident alien accounts where
applicable, preparing and filing U.S. Treasury Department Forms 1099 and other
appropriate forms required with respect to dividends and distributions by
federal authorities for all registered Shareholders.

      (c) The Bank shall provide additional services on behalf of the Fund
(i.e., escheatment services) which may be agreed upon in writing between the
Fund and the Bank.
<PAGE>
 
ARTICLE 2  FEES AND EXPENSES

          2.01  For the performance by the Bank pursuant to this Agreement, the
Fund agrees to pay the Bank an annual maintenance fee as set out in the initial
fee schedule attached hereto.  Such fees and out-of-pocket expenses and advances
identified under Section 2.02 below may be changed from time to time subject to
mutual written agreement between the Fund and the Bank.

          2.02  In addition to the fee paid under Section 2.01 above, the Fund
agrees to reimburse the Bank for out-of-pocket expenses, including but not
limited to confirmation production, postage, forms, telephone, microfilm,
microfiche, tabulating proxies, records storage, or advances incurred by the
Bank for the items set out in the fee schedule attached hereto.  In addition,
any other expenses incurred by the Bank at the request or with the consent of
the Fund, will be reimbursed by the Fund.

          2.03  The Fund agrees to pay all fees and reimbursable expenses within
five days following the receipt of the respective billing notice.  Postage and
the cost of materials for mailing of dividends, proxies, Fund reports and other
mailings to all Shareholder accounts shall be advanced to the Bank by the Fund
at least seven (7) days prior to the mailing date of such materials.

ARTICLE 3  REPRESENTATIONS AND WARRANTIES OF THE BANK

           The Bank represents and warrants to the Fund that:

           3.01  It is a trust company duly organized and existing and in good
standing under the laws of the Commonwealth of Massachusetts.

           3.02  It is duly qualified to carry on its business in the
Commonwealth of Massachusetts.

           3.03  It is empowered under applicable laws and by its Charter and
By-Laws to enter into and perform this Agreement.

           3.04  All requisite corporate proceedings have been taken to
authorize it to enter into and perform this Agreement.
<PAGE>
 
           3.05  It has and will continue to have access to the
necessary facilities, equipment and personnel to perform its duties and
obligations under this Agreement.

ARTICLE 4  REPRESENTATIONS AND WARRANTIES OF THE FUND

           The Fund represents and warrants to the Bank that:

           4.01  It is a corporation duly organized and existing and in good
standing under the laws of Maryland.

           4.02  It is empowered under applicable laws and by its Articles of
Incorporation and By-Laws to enter into and perform this Agreement.

           4.03  All corporate proceedings required by said Articles of
Incorporation and By-Laws have been taken to authorize it to enter into and
perform this Agreement.

           4.04  It is a closed-end, diversified investment company registered
under the Investment Company Act of 1940, as amended.

           4.05  To the extent required by federal securities laws a
registration statement under the Securities Act of 1933, as amended is currently
effective and appropriate state securities law filings have been made with
respect to all Shares of the Fund being offered for sale; information to the
contrary will result in immediate notification to the Bank.

           4.06  It shall make all required filings under federal and state
securities laws.

ARTICLE 5  DATA ACCESS AND PROPRIETARY INFORMATION

           5.01 The Fund acknowledges that the data bases, computer programs,
screen formats, report formats, interactive design techniques, and other
information furnished to the Fund by the Bank are provided solely in connection
with the services rendered under this Agreement and constitute copyrighted trade
secrets or proprietary information of substantial value to the Bank. Such
databases, programs, formats, designs, techniques and other information are
collectively referred to below as "Proprietary Information." The Fund agrees
that it shall treat all Proprietary Information as proprietary to the Bank and
further agrees that it shall not divulge any
<PAGE>
 
Proprietary Information to any person or organization except as expressly
permitted hereunder. The Fund agrees for itself and its employees and agents:

           (a) to use such programs and databases (i) solely on the Fund
           computers, or (ii) solely from equipment at the locations agreed to
           between the Fund and the Bank and (iii) in accordance with the Bank's
           applicable user documentation;

           (b) to refrain from copying or duplicating in any way (other than in
           the normal course of performing processing on the Funds' computers)
           any part of any Proprietary Information;

           (c) to refrain from obtaining unauthorized access to any programs,
           data or other information not owned by the Fund, and if such access
           is accidentally obtained, to respect and safeguard the same
           Proprietary Information;

           (d) to refrain from causing or allowing information transmitted from
           the Bank's computer to the Funds' terminal to be retransmitted to any
           other computer terminal or other device except as expressly permitted
           by the Bank (such permission not to be unreasonably withheld);

           (e) that the Fund shall have access only to those authorized
           transactions as agreed to between the Fund and the Bank; and

           (f) to honor reasonable written requests made by the Bank to protect
           at the Bank's expense the rights of the Bank in Proprietary
           Information at common law and under applicable statutes.

          5.02  If the transactions available to the Fund include the ability to
originate electronic instructions to the Bank in order to (i) effect the
transfer or movement of cash or Shares or (ii) transmit Shareholder information
or other information, then in such event the Bank shall be entitled to rely on
the validity and authenticity of such instruction without undertaking any
further inquiry as long as such instruction is undertaken in conformity with
security procedures established by the Bank from time to time.
<PAGE>
 
Article 6  Indemnification

          6.01  The Bank shall not be responsible for, and the Fund shall
indemnify and hold the Bank harmless from and against, any and all losses,
damages, costs, charges, counsel fees, payments, expenses and liability arising
out of or attributable to:

          (a) All actions of the Bank or its agents or subcontractors required
to be taken pursuant to this Agreement, provided that such actions are taken in
good faith and without negligence or willful misconduct.

          (b) The Fund's lack of good faith, negligence or willful misconduct
which arise out of the breach of any representation or warranty of the Fund
hereunder.

          (c) The reliance on or use by the Bank or its agents or subcontractors
of information, records, documents or services which (i) are received by the
Bank or its agents or subcontractors, and (ii) have been prepared, maintained or
performed by the Fund or any other person or firm on behalf of the Fund
including but not limited to any previous transfer agent registrar.

          (d) The reliance on, or the carrying out by the Bank or its agents or
subcontractors of any instructions or requests of the Fund.

          (e) The offer or sale of Shares in violation of any requirement under
the federal securities laws or regulations or the securities laws or regulations
of any state that such Shares be registered in such state or in violation of any
stop order or other determination or ruling by any federal agency or any state
with respect to the offer or sale of such Shares in such state.

          6.02  At any time the Bank may apply to any officer of the Fund for
instructions, and may consult with legal counsel with respect to any matter
arising in connection with the services to be performed by the Bank under this
Agreement, and the Bank and its agents or subcontractors shall not be liable and
shall be indemnified by the Fund for any action taken or omitted by it in
reliance upon such instructions or upon the opinion of such counsel. The Bank,
its agents and subcontractors shall be protected and indemnified in acting
<PAGE>
 
upon any paper or document furnished by or on behalf of the Fund, reasonably
believed to be genuine and to have been signed by the proper person or persons,
or upon any instruction, information, data, records or documents provided the
Bank or its agents or subcontractors by telephone, in person, machine readable
input, telex, CRT data entry or other similar means authorized by the Fund, and
shall not be held to have notice of any change of authority of any person, until
receipt of written notice thereof from the Fund. The Bank, its agents and
subcontractors shall also be protected and indemnified in recognizing stock
certificates which are reasonably believed to bear the proper manual or
facsimile signatures of the officers of the Fund, and the proper
countersignature of any former transfer agent or former registrar, or of a 
co-transfer agent or co-registrar.

          6.03  In order that the indemnification provisions contained in this
Article 6 shall apply, upon the assertion of a claim for which the Fund may be
required to indemnify the Bank, the Bank shall promptly notify the Fund in 
writing of such assertion, and shall keep the Fund advised with respect to all
developments concerning such claim. The Fund shall have the option to
participate with the Bank in the defense of such claim or to defend against said
claim in its own name or in the name of the Bank. The Bank shall in no case
confess any claim or make any compromise in any case in which the Fund may be
required to indemnify the Bank except with the Fund's prior written consent.

ARTICLE 7  STANDARD OF CARE

           7.01  The Bank shall at all times act in good faith and agrees to use
its best efforts within reasonable limits to insure the accuracy of all services
performed under this Agreement, but assumes no responsibility and shall not be
liable for loss or damage due to errors unless said errors are caused by its
negligence, bad faith, or willful misconduct of that of its employees.

ARTICLE 8  COVENANTS OF THE FUND AND THE BANK

           8.01  The Fund shall promptly furnish to the Bank the following:
<PAGE>
 
           (a)   A certified copy of the resolution of the Board of Directors of
the Fund authorizing the appointment of the Bank and the execution and delivery
of this Agreement.

           (b)   A copy of the Articles of Incorporation and By-Laws of the Fund
and all amendments thereto.

           8.02  The Bank hereby agrees to establish and maintain facilities and
procedures reasonably acceptable to the Fund for safekeeping of stock
certificates, check forms and facsimile signature imprinting devices, if any;
and for the preparation or use, and for keeping account of, such certificates,
forms and devices.

           8.03  The Bank shall keep records relating to the services to be
performed hereunder, in the form and manner as it may deem advisable.  To the
extent required by Section 31 of the Investment Company Act of 1940, as amended,
and the Rules thereunder, the Bank agrees that all such records prepared or
maintained by the Bank relating to the services to be performed by the Bank
hereunder are the property of the Fund and will be preserved, maintained and
made available in accordance with such Section and Rules, and will be
surrendered promptly to the Fund on and in accordance with its request.

           8.04  The Bank and the Fund agree that all books, records,
information and data pertaining to the business of the other party which are
exchanged or received pursuant to the negotiation or the carrying out of this
Agreement shall remain confidential, and shall not be voluntarily disclosed to
any other person, except as may be requested by a governmental entity or as 
may be required by law.

           8.05  In cases of any requests or demands for the inspection of the
Shareholder records of the Fund, the Bank will endeavor to notify the Fund and
to secure instructions from an authorized officer of the Fund as to such
inspection.  The Bank reserves the right, however, to exhibit the Shareholder
records to any person whenever it is advised by its counsel that it may be held
liable for the failure to exhibit the Shareholder records to such person.

ARTICLE 9  TERMINATION OF AGREEMENT

           9.01  This Agreement may be terminated by either party upon one
hundred twenty (120) days' written notice to the other.
<PAGE>
 
           9.02  Should the Fund exercise its right to terminate, all out-of-
pocket expenses associated with the movement of records and material will be
borne by the Fund.  Additionally, the Bank reserves the right to charge for any
other reasonable expenses associated with such termination and/or a charge
equivalent to the average of three (3) months' fees.

ARTICLE 10 ASSIGNMENT

            10.01  Except as provided in Section 10.03 below, neither this
Agreement nor any rights or obligations hereunder may be assigned by either
party without the written consent of the other party.

            10.02  This Agreement shall inure to the benefit of and be binding
upon the parties and their respective permitted successors and assigns.

            10.03  The Bank may, without further consent on the part of the
Fund, subcontract for the performance hereof with (i) Boston EquiServe Limited
Partnership, a Massachusetts limited partnership ("Boston EquiServe"), which is
duly registered as a transfer agent pursuant to Section 17A(c)(2) of the
Securities Exchange Act of 1934 ("Section 17A(c)(2)"), or (ii) a Boston
EquiServe affiliate duly registered as a transfer agent pursuant to Section
17A(c)(2), provided, however, that the Bank shall be as fully responsible to the
Fund for the acts and omissions of any subcontractor as it is for its own acts
and omissions.

ARTICLE 11   AMENDMENT

            11.01  This Agreement may be amended or modified by a written
agreement executed by both parties and authorized or approved by a resolution of
the Board of Directors of the Fund.

ARTICLE 12  MASSACHUSETTS LAW TO APPLY

            12.01  This Agreement shall be construed and the provisions thereof
interpreted under and in accordance with the laws of The Commonwealth of
Massachusetts.
<PAGE>
 
ARTICLE 13  FORCE MAJEURE

            13.01  In the event either party is unable to perform its
obligations under the terms of this Agreement because of acts of God, strikes,
equipment or transmission failure or damage reasonably beyond its control, or
other causes reasonably beyond its control, such party shall not be liable for
damages to the other for any damages resulting from such failure to perform or
otherwise from such causes.

ARTICLE 14  CONSEQUENTIAL DAMAGES

            14.01  Neither party to this Agreement shall be liable to the other
party for consequential damages under any provision of this Agreement or for any
consequential damages arising out of any act or failure to act hereunder.

ARTICLE 15  MERGER OF AGREEMENT

            15.01  This Agreement constitutes the entire agreement between the
parties hereto and supersedes any prior agreement with respect to the subject
hereof whether oral or written.

ARTICLE 16  SURVIVAL

            16.01  All provisions regarding indemnification, warranty, liability
and limits thereon, and confidentiality and/or protection of proprietary rights
and trade secrets shall survive the termination of this Agreement.

ARTICLE 17  SEVERABILITY

            17.01  If any provision or provisions of this Agreement shall be
held to be invalid, unlawful, or unenforceable, the validity, legality and
enforceability of the remaining provisions shall not in any way be affected or
impaired.

ARTICLE 18 COUNTERPARTS

           18.01  This Agreement may be executed by the parties hereto on any
number of counterparts, and all of said counterparts taken together shall be
deemed to constitute one and the same instrument.
<PAGE>
 
          IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed in their names and on their behalf by and through their duly
authorized officers, as of the day and year first above written.


                          MuniHoldings California Insured Fund III, Inc.



                          BY:__________________________________________

ATTEST:

________________________________________



                          State Street Bank and Trust Company



                          BY:___________________________________________
 



ATTEST:


______________________________________

<PAGE>
 
                                                                EXHIBIT 99(k)(2)
 
================================================================================



                            AUCTION AGENT AGREEMENT

                                    between

                 MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.

                                      and

                       IBJ SCHRODER BANK & TRUST COMPANY

                            Dated as of ______, 1998

                                  Relating to

                       AUCTION MARKET PREFERRED STOCK(R)

                                  ("AMPS"(R)),

                                 Series A and B

                                       of

                 MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.

                           

================================================================================


(R) Registered trademark of Merrill Lynch & Co., Inc.
<PAGE>
 
THIS AUCTION AGENT AGREEMENT, dated as of_______, 1998, is between MUNIHOLDINGS
CALIFORNIA INSURED FUND III, INC., a Maryland corporation (the "Company"), and
IBJ SCHRODER BANK & TRUST COMPANY, a New York banking corporation.

     The Company proposes to duly authorize and issue _____ shares of Auction
Market Preferred Stock(R), Series A ("Series A AMPS"), and _____ shares of
Auction Market Preferred Stock(R), Series B ("Series B AMPS"), each with a par
value of $.10 per share and a liquidation preference of $25,000 per share plus
an amount equal to accumulated but unpaid dividends (whether or not earned or
declared), pursuant to the Company's Articles Supplementary (as defined below).
The Series A AMPS and Series B AMPS are sometimes herein referred to together as
the "AMPS."  A separate Auction (as defined below) will be conducted for each
series of AMPS.  The Company desires that IBJ Schroder Bank & Trust Company
perform certain duties as agent in connection with each Auction of shares of
AMPS (in such capacity, the "Auction Agent"), and as the transfer agent,
registrar, dividend disbursing agent and redemption agent with respect to the
shares of AMPS (in such capacity, the "Paying Agent"), upon the terms and
conditions of this Agreement, and the Company hereby appoints IBJ Schroder Bank
& Trust Company as said Auction Agent and Paying Agent in accordance with those
terms and conditions (hereinafter generally referred to as the "Auction Agent,"
except in Sections 3 and 4 below).

     NOW, THEREFORE, in consideration of the premises and the mutual covenants
contained herein, the Company and the Auction Agent agree as follows:

I.   DEFINITIONS AND RULES OF CONSTRUCTION.
     ------------------------------------- 

     1.1.  Terms Defined by Reference to
           Articles Supplementary.
           ------------------------------

     Capitalized terms not defined herein shall have the respective meanings
specified in the Articles Supplementary.


(R) Registered trademark of Merrill Lynch & Co., Inc.

                                       2
<PAGE>
 
     1.2.  Terms Defined Herein.
           -------------------- 

     As used herein and in the Settlement Procedures (as defined below), the
following terms shall have the following meanings, unless the context otherwise
requires:

          (a) "Affiliate" shall mean any Person, other than Merrill Lynch,
          Pierce, Fenner & Smith Incorporated, made known to the Auction Agent
          to be controlled by, in control of, or under common control with, the
          Company or its successors.

          (b) "Agent Member" of any Person shall mean such Person's agent member
          of the Securities Depository that will act on behalf of a Bidder.

          (c) "Articles Supplementary" shall mean the Articles Supplementary of
          the Company, establishing the powers, preferences and rights of the
          AMPS, filed on ______, 1998 with the State Department of Assessments
          and Taxation of the State of Maryland.

          (d) Auction" shall have the meaning specified in Section 2.1 hereof.

          (e) "Auction Procedures" shall mean the Auction Procedures that are
          set forth in Paragraph 10 of the Articles Supplementary.

          (f) "Authorized Officer" shall mean each Senior Vice President, Vice
          President, Assistant Vice President, Trust Officer, and Assistant
          Secretary and Assistant Treasurer of the Auction Agent assigned to its
          Corporate Trust and Agency Group and every other officer or employee
          of the Auction Agent designated as an "Authorized Officer" for
          purposes hereof in a communication to the Company.

          (g) "Broker-Dealer Agreement" shall mean each agreement between the
          Auction Agent and a Broker-Dealer substantially in the form attached
          hereto as Exhibit A.

          (h) "Company Officer" shall mean the Chairman and Chief Executive
          Officer, the President, each Vice President (whether or not designated
          by a number or word or words added before or after the title "Vice
          President"), the Secretary, the Treasurer, each Assistant Secretary
          and each Assistant Treasurer of the Company and every other officer or
          employee of the Company designated as a "Company Officer" for purposes
          hereof in a notice from the Company to the Auction Agent.

          (i) "Holder" shall be a holder of record of one or more shares of
          AMPS, listed as such in the stock register maintained by the Paying
          Agent pursuant to Section 4.6 hereof.

          (j) "Settlement Procedures" shall mean the Settlement Procedures
          attached as Exhibit A to the Broker-Dealer Agreement.

                                       3
<PAGE>
 
     1.3.  Rules of Construction.

     Unless the context or use indicates another or different meaning or intent,
the following rules shall apply to the construction of this Agreement:

          (a) Words importing the singular number shall include the plural
          number and vice versa.

          (b) The captions and headings herein are solely for convenience of
          reference and shall not constitute a part of this Agreement nor shall
          they affect its meaning, construction or effect.

          (c) The words "hereof," "herein," "hereto," and other words of similar
          import refer to this Agreement as a whole.

          (d) All references herein to a particular time of day shall be to New
          York City time.

II.  THE AUCTION.
     ----------- 

     2.1.  Purpose; Incorporation by Reference of Auction
           Procedures and Settlement Procedures.
           ----------------------------------------

           (a) The Articles Supplementary provide that the Applicable Rate on
           shares of each series of AMPS, as the case may be, for each Dividend
           Period therefor after the Initial Dividend Period shall be the rate
           per annum that a commercial bank, trust company or other financial
           institution appointed by the Company advises results from
           implementation of the Auction Procedures. The Board of Directors of
           the Company has adopted a resolution appointing IBJ Schroder Bank &
           Trust Company as Auction Agent for purposes of the Auction
           Procedures. The Auction Agent hereby accepts such appointment and
           agrees that, on each Auction Date, it shall follow the procedures set
           forth in this Section 2 and the Auction Procedures for the purpose of
           determining the Applicable Rate for the AMPS for the next Dividend
           Period therefor. Each periodic operation of such procedures is
           hereinafter referred to as an "Auction."

           (b) All of the provisions contained in the Auction Procedures and in
           the Settlement Procedures are incorporated herein by reference in
           their entirety and shall be deemed to be a part hereof to the same
           extent as if such provisions were set forth fully herein.

     2.2.  Preparation for Each Auction; Maintenance
           of Registry of Existing Holders.        
           --------------------------------------

          (a) Pursuant to Section 2.5 hereof, the Company shall not designate
          any Person to act as a Broker-Dealer without the prior written
          approval of the Auction Agent (which approval shall not be withheld
          unreasonably). As of the date hereof, the Company shall provide the
          Auction Agent with a list of the Broker-

                                       4
<PAGE>
 
          Dealers previously approved by the Auction Agent and shall cause to be
          delivered to the Auction Agent for execution by the Auction Agent a
          Broker-Dealer Agreement signed by each such Broker-Dealer. The Auction
          Agent shall keep such list current and accurate and shall indicate
          thereon, or on a separate list, the identity of each Existing Holder,
          if any, whose most recent Order was submitted by a Broker-Dealer on
          such list and resulted in such Existing Holder continuing to hold or
          purchasing shares of AMPS. Not later than five Business Days prior to
          any Auction Date for which any change in such list of Broker-Dealers
          is to be effective, the Company shall notify the Auction Agent in
          writing of such change and, if any such change is the addition of a
          Broker-Dealer to such list, the Company shall cause to be delivered to
          the Auction Agent for execution by the Auction Agent a Broker-Dealer
          Agreement signed by such Broker-Dealer. The Auction Agent shall have
          entered into a Broker-Dealer Agreement with each Broker-Dealer prior
          to the participation of any such Broker-Dealer in any Auction.

          (b) In the event that the Auction Date for any Auction shall be
          changed after the Auction Agent shall have given the notice referred
          to in clause (vii) of Paragraph (a) of the Settlement Procedures, the
          Auction Agent, by such means as the Auction Agent deems practicable,
          shall give notice of such change to the Broker-Dealers not later than
          the earlier of 9:15 A.M. on the new Auction Date or 9:15 A.M. on the
          old Auction Date.

          (c) The provisions contained in paragraph 2 of the Articles
          Supplementary concerning Special Dividend Periods and the notification
          of a Special Dividend Period will be followed by the Company and, to
          the extent applicable, the Auction Agent, and the provisions contained
          therein are incorporated herein by reference in their entirety and
          shall be deemed to be a part of this Agreement to the same extent as
          if such provisions were set forth fully herein.

          (d) Except as otherwise provided in paragraph 2(f) of the Articles
          Supplementary, whenever the Company intends to include any net capital
          gains or other income subject to regular Federal income tax in any
          dividend on shares of AMPS, the Company will notify the Auction Agent
          of the amount to be so included at least five Business Days prior to
          the Auction Date on which the Applicable Rate for such dividend is to
          be established.  Whenever the Auction Agent receives such notice from
          the Company, in turn it will notify each Broker-Dealer, who, on or
          prior to such Auction Date, in accordance with its Broker-Dealer
          Agreement, will notify its Beneficial Owners and Potential Beneficial
          Owners believed to be interested in submitting an Order in the Auction
          to be held on such Auction Date.  Whenever the Company includes any
          additional amounts in a dividend as provided in paragraph 2(f) of the
          Articles Supplementary, the Company will notify the Auction Agent of
          such additional amounts to be so included in such dividend at least
          five Business Days prior to the applicable Dividend Payment Date.
          Whenever the Auction Agent receives such notice from the Company, in
          turn it will notify the Securities Depository and each Broker-

                                       5
<PAGE>
 
          Dealer, who, on or prior to the applicable Dividend Payment Date, in
          accordance with its Broker-Dealer Agreement, will notify its
          Beneficial Owners.

            (ii)  If the Company makes a Retroactive Taxable Allocation, the
          Company, within 90 days (and generally within 60 days) after the end
          of its fiscal year for which a Retroactive Taxable Allocation is made,
          will provide notice thereof to the Auction Agent and to each Holder
          (initially the Securities Depository) during such fiscal year at such
          Holder's address as the same appears or last appeared on the stock
          books of the Company.  The Company, within 30 days after such notice
          is given to the Auction Agent, will pay to the Auction Agent (who then
          will distribute to such Holders), out of funds legally available
          therefor, a cash amount equal to the aggregate Additional Dividend
          with respect to all Retroactive Taxable Allocations made to such
          Holders during the fiscal year in question.

          (e) On each Auction Date, the Auction Agent shall determine the
          Reference Rate and the Maximum Applicable Rate.  If the Reference Rate
          is not quoted on an interest basis but is quoted on a discount basis,
          the Auction Agent shall convert the quoted rate to an Interest
          Equivalent, as set forth in paragraph 1 of the Articles Supplementary;
          or, if the rate obtained by the Auction Agent is not quoted on an
          interest or discount basis, the Auction Agent shall convert the quoted
          rate to an interest rate after consultation with the Company as to the
          method of such conversion.  Not later than 9:30 A.M. on each Auction
          Date, the Auction Agent shall notify the Company and the Broker-
          Dealers of the Reference Rate so determined and of the Maximum
          Applicable Rate.

            (ii)  If the Reference Rate is the applicable "AA" Composite
          Commercial Paper Rate and such rate is to be based on rates supplied
          by Commercial Paper Dealers and one or more of the Commercial Paper
          Dealers shall not provide a quotation for the determination of the
          applicable "AA" Composite Commercial Paper Rate, the Auction Agent
          immediately shall notify the Company so that the Company can determine
          whether to select a Substitute Commercial Paper Dealer or Substitute
          Commercial Paper Dealers to provide the quotation or quotations not
          being supplied by any Commercial Paper Dealer or Commercial Paper
          Dealers.  The Company promptly shall advise the Auction Agent of any
          such selection.  If the Company does not select any such Substitute
          Commercial Paper Dealer or Substitute Commercial Paper Dealers, then
          the rates shall be supplied by the remaining Commercial Paper Dealer
          or Commercial Paper Dealers.

            (iii)  If, after the date of this Agreement, there is any change in
          the prevailing rating of AMPS by either of the rating agencies (or
          substitute or successor rating agencies) referred to in the definition
          of the Maximum Applicable Rate, thereby resulting in any change in the
          corresponding applicable percentage for the AMPS, as set forth in said
          definition (the "Percentage"), the Company shall notify the Auction
          Agent in writing of such change in the Percentage prior to 9:00 A.M.
          on the Auction Date for AMPS next succeeding such change. The
          Percentage for the AMPS on the date of this Agreement is as specified
          in paragraph 10(a)(vii) of the Articles Supplementary. The Auction
          Agent shall be entitled to rely on the last

                                       6
<PAGE>
 
          Percentage of which it has received notice from the Company (or, in
          the absence of such notice, the Percentage set forth in the preceding
          sentence) in determining the Maximum Applicable Rate as set forth in
          Section 2.2(e)(i) hereof.

          (f) The Auction Agent shall maintain a current registry of the
          Existing Holders of the shares of each series of AMPS for purposes of
          each Auction.  The Company shall use its best efforts to provide or
          cause to be provided to the Auction Agent within ten Business Days
          following the date of the Closing a list of the initial Existing
          Holders of each series of AMPS, and the Broker-Dealer of each such
          Existing Holder through which such Existing Holder purchased such
          shares.  The Auction Agent may rely upon, as evidence of the
          identities of the Existing Holders, such list, the results of each
          Auction and notices from any Existing Holder, the Agent Member of any
          Existing Holder or the Broker-Dealer of any Existing Holder with
          respect to such Existing Holder's transfer of any shares of AMPS to
          another Person.

            (ii)  In the event of any partial redemption of any series of AMPS,
          upon notice by the Company to the Auction Agent of such partial
          redemption, the Auction Agent promptly shall request the Securities
          Depository to notify the Auction Agent of the identities of the Agent
          Members (and the respective numbers of shares) from the accounts of
          which shares have been called for redemption and the person or
          department at such Agent Member to contact regarding such redemption,
          and at least two Business Days prior to the Auction preceding the date
          of redemption with respect to shares of the series being partially
          redeemed, the Auction Agent shall request each Agent Member so
          identified to disclose to the Auction Agent (upon selection by such
          Agent Member of the Existing Holders whose shares are to be redeemed)
          the number of shares of such series of AMPS of each such Existing
          Holder, if any, to be redeemed by the Company, provided that the
          Auction Agent has been furnished with the name and telephone number of
          a person or department at such Agent Member from which it is to
          request such information.  In the absence of receiving any such
          information with respect to an Existing Holder, from such Existing
          Holder's Agent Member or otherwise, the Auction Agent may continue to
          treat such Existing Holder as having ownership of the number of shares
          of the series of AMPS shown in the Auction Agent's registry of
          Existing Holders.

            (iii)  The Auction Agent shall register a transfer of the ownership
          of shares of a series of AMPS from an Existing Holder to another
          Existing Holder, or to another Person if permitted by the Company,
          only if (A) such transfer is made pursuant to an Auction or (B) if
          such transfer is made other than pursuant to an Auction, the Auction
          Agent has been notified of such transfer in writing in a notice
          substantially in the form of Exhibit C to the Broker-Dealer
          Agreements, by such Existing Holder or by the Agent Member of such
          Existing Holder. The Auction Agent is not required to accept any
          notice of transfer delivered for an Auction unless it is received by
          the Auction Agent by 3:00 P.M. on the Business Day next preceding the
          applicable Auction Date. The Auction Agent shall rescind a transfer
          made on the registry of the Existing Holders of any shares of AMPS if
          the

                                       7
<PAGE>
 
          Auction Agent has been notified in writing, in a notice substantially
          in the form of Exhibit D to the Broker-Dealer Agreement, by the Agent
          Member or the Broker-Dealer of any Person that (i) purchased any
          shares of AMPS and the seller failed to deliver such shares or (ii)
          sold any shares of AMPS and the purchaser failed to make payment to
          such Person upon delivery to the purchaser of such shares.

          (g) The Auction Agent may request that the Broker-Dealers, as set
          forth in Section 3.2(c) of the Broker-Dealer Agreements, provide the
          Auction Agent with a list of their respective customers that such
          Broker-Dealers believe are Beneficial Owners of shares of AMPS.  The
          Auction Agent shall keep confidential any such information and shall
          not disclose any such information so provided to any Person other than
          the relevant Broker-Dealer and the Company, provided that the Auction
          Agent reserves the right to disclose any such information if it is
          advised by its counsel that its failure to do so would be unlawful.

     2.3.  Auction Schedule.
           ---------------- 

     The Auction Agent shall conduct Auctions in accordance with the schedule
set forth below.  Such schedule may be changed by the Auction Agent with the
consent of the Company, which consent shall not be withheld unreasonably.  The
Auction Agent shall give notice of any such change to each Broker-Dealer.  Such
notice shall be received prior to the first Auction Date on which any such
change shall be effective.

<TABLE> 
<CAPTION> 
          Time                      Event
          ----                      -----
<S>                             <C> 
     By 9:30 A.M.               Auction Agent advises the Company  and the Broker-Dealers of
                                the Reference Rate and the Maximum Applicable Rate as
                                set forth in Section 2.2(e)(i) hereof.

     9:30 A.M. - 1:00 P.M.      Auction Agent assembles information communicated to
                                it by Broker-Dealers as provided in Paragraph 10(c)(i)
                                of the Articles Supplementary.  Submission deadline is
                                1:00 P.M.

     Not earlier than           Auction Agent makes determinations
     1:00 P.M.                  pursuant to Paragraph 10(d)(i) of the Articles 
                                Supplementary.

     By approximately           Auction Agent advises the Company
     3:00 P.M.                  of the results of the Auction as provided in Paragraph 
                                10(d)(ii) of the Articles Supplementary.

                                Submitted Bids and Submitted Sell Orders are accepted
                                and rejected in whole or in part and shares of AMPS
                                allocated as provided in Paragraph 10(e) of the
                                Articles Supplementary.
</TABLE> 

                                       8
<PAGE>
 
                         Auction Agent gives notice of
                          the Auction results as set
                          forth in Section 2.4 hereof.

     2.4.  Notice of Auction Results.
           ------------------------- 

     On each Auction Date, the Auction Agent shall notify Broker-Dealers of the
results of the Auction held on such date by telephone or through the Auction
Agent's Auction Processing System as set forth in Paragraph (a) of the
Settlement Procedures.

     2.5.  Broker-Dealers.
           -------------- 

           (a) Not later than 12:00 noon on each Auction Date, the Company shall
           pay to the Auction Agent in Federal Funds or similar same-day funds
           an amount in cash equal to (i) in the case of any Auction Date
           immediately preceding a 7-Day Dividend Period or 28-Day Dividend
           Period, the product of (A) a fraction the numerator of which is the
           number of days in such Dividend Period (calculated by counting the
           first day of such Dividend Period but excluding the last day thereof)
           and the denominator of which is 360, times (B) 1/4 of 1%, times (C)
           $25,000 times (D) the sum of the aggregate number of Outstanding
           shares of AMPS for which the Auction is conducted and (ii) in the
           case of any Special Dividend Period, the amount determined by mutual
           consent of the Company and the Broker-Dealers pursuant to Section 3.5
           of the Broker-Dealer Agreements. The Auction Agent shall apply such
           moneys as set forth in Section 3.5 of the Broker-Dealer Agreements
           and shall thereafter remit to the Company any remaining funds paid to
           the Auction Agent pursuant to this Section 2.5(a).

           (b) The Company shall not designate any Person to act as a Broker-
           Dealer, or permit a Existing Holder or a Potential Beneficial Owner
           to participate in Auctions through any Person other than a Broker-
           Dealer, without the prior written approval of the Auction Agent,
           which approval shall not be withheld unreasonably. The Company may
           designate an Affiliate or Merrill Lynch, Pierce, Fenner & Smith
           Incorporated to act as a Broker-Dealer.

           (c) The Auction Agent shall terminate any Broker-Dealer Agreement as
           set forth therein if so directed by the Company.

           (d) Subject to Section 2.5(b) hereof, the Auction Agent from time to
           time shall enter into such Broker-Dealer Agreements as the Company
           shall request.

           (e) The Auction Agent shall maintain a list of Broker-Dealers.

     2.6.  Ownership of Shares of AMPS and Submission of Bids
           by the Company and its Affiliates.
           ---------------------------------------------------------

     Neither the Company nor any Affiliate of the Company may submit any Sell
Order or Bid, directly or indirectly, in any Auction, except that an Affiliate
of the Company that is a Broker-Dealer may submit a Sell Order or Bid on behalf
of a Beneficial Owner or a Potential

                                       9
<PAGE>
 
Beneficial Owner. The Company shall notify the Auction Agent if the Company or,
to the best of the Company's knowledge, any Affiliate of the Company becomes a
Beneficial Owner of any shares of AMPS. Any shares of AMPS redeemed, purchased
or otherwise acquired (i) by the Company shall not be reissued, except in
accordance with the requirements of the Securities Act of 1933, as amended, or
(ii) by its Affiliates shall not be transferred (other than to the Company). The
Auction Agent shall have no duty or liability with respect to enforcement of
this Section 2.6.

     2.7.  Access to and Maintenance of Auction Records.
           -------------------------------------------- 

     The Auction Agent shall afford to the Company, its agents, independent
public accountants and counsel, access at reasonable times during normal
business hours to review and make extracts or copies (at the Company's sole cost
and expense) of all books, records, documents and other information concerning
the conduct and results of Auctions, provided that any such agent, accountant or
counsel shall furnish the Auction Agent with a letter from the Company
requesting that the Auction Agent afford such person access.  The Auction Agent
shall maintain records relating to any Auction for a period of two years after
such Auction (unless requested by the Company to maintain such records for such
longer period not in excess of four years, then for such longer period), and
such records, in reasonable detail, shall accurately and fairly reflect the
actions taken by the Auction Agent hereunder.  The Company agrees to keep
confidential any information regarding the customers of any Broker-Dealer
received from the Auction Agent in connection with this Agreement or any
Auction, and shall not disclose such information or permit the disclosure of
such information without the prior written consent of the applicable Broker-
Dealer to anyone except such agent, accountant or counsel engaged to audit or
review the results of Auctions as permitted by this Section 2.7, provided that
the Company reserves the right to disclose any such information if it is advised
by its counsel that its failure to do so would (i) be unlawful or (ii) expose it
to liability, unless the Broker-Dealer shall have offered indemnification
satisfactory to the Company.  Any such agent, accountant or counsel, before
having access to such information, shall agree to keep such information
confidential and not to disclose such information or permit disclosure of such
information without the prior written consent of the applicable Broker-Dealer,
provided that such agent, accountant or counsel may reserve the right to
disclose any such information if it is advised by its counsel that its failure
to do so would (i) be unlawful or (ii) expose it to liability, unless the
Broker-Dealer shall have offered indemnification satisfactory to such agent,
accountant or counsel.

III. THE AUCTION AGENT AS PAYING AGENT.
     ---------------------------------

     3.1.  The Paying Agent.
           ---------------- 

     The Board of Directors of the Company has adopted a resolution appointing
IBJ Schroder Bank & Trust Company as transfer agent, registrar, dividend
disbursing agent and redemption agent for the Company in connection with any
shares of AMPS (in such capacity, the "Paying Agent").  The Paying Agent hereby
accepts such appointment and agrees to act in accordance with its standard
procedures and the provisions of the Articles Supplementary which are specified
herein with respect to the shares of AMPS and as set forth in this Section 3.


                                       10
<PAGE>
 
     3.2.  The Company's Notices to the Paying Agent.
           ----------------------------------------- 

     Whenever any shares of AMPS are to be redeemed, the Company promptly shall
deliver to the Paying Agent a Notice of Redemption, which will be mailed by the
Company to each Holder at least five Business Days prior to the date such Notice
of Redemption is required to be mailed pursuant to the Articles Supplementary.
The Paying Agent shall have no responsibility to confirm or verify the accuracy
of any such Notice.

     3.3.  The Company to Provide Funds for Dividends,
           Redemptions and Additional Dividends.
           --------------------------------------------

           (a) Not later than noon on each Dividend Payment Date, the Company
           shall deposit with the Paying Agent an aggregate amount of Federal
           Funds or similar same-day funds equal to the declared dividends to be
           paid to Holders on such Dividend Payment Date, and shall give the
           Paying Agent irrevocable instructions to apply such funds to the
           payment of such dividends on such Dividend Payment Date.

           (b) If the Company shall give a Notice of Redemption, then by noon of
           the date fixed for redemption, the Company shall deposit in trust
           with the Paying Agent an aggregate amount of Federal Funds or similar
           same-day funds sufficient to redeem such shares of AMPS called for
           redemption and shall give the Paying Agent irrevocable instructions
           and authority to pay the redemption price to the Holders of shares of
           AMPS called for redemption upon surrender of the certificate or
           certificates therefor.

           (c) If the Company provides notice to the Auction Agent of a
           Retroactive Taxable Allocation, the Company, within 30 days after
           such notice is given and by noon of the date fixed for payment of an
           Additional Dividend, shall deposit in trust with the Paying Agent an
           aggregate amount of Federal Funds or similar same-day funds equal to
           such Additional Dividend and shall give the Paying Agent irrevocable
           instructions and authority to pay the Additional Dividend to Holders
           (or former Holders) entitled thereto.

     3.4.  Disbursing Dividends, Redemption Price
           and Additional Dividends.
           --------------------------------------

     After receipt of the Federal Funds or similar same-day funds and
instructions from the Company described in Sections 3.3(a), (b) and (c) above,
the Paying Agent shall pay to the Holders (or former Holders) entitled thereto
(i) on each corresponding Dividend Payment Date, dividends on the shares of
AMPS, (ii) on any date fixed for redemption, the redemption price of any shares
of AMPS called for redemption and (iii) on the date fixed for payment of an
Additional Dividend, such Additional Dividend.  The amount of dividends for any
Dividend Period to be paid by the Paying Agent to Holders will be determined by
the Company as set forth in Paragraph 2 of the Articles Supplementary. The
redemption price to be paid by the Paying Agent to the Holders of any shares of
AMPS called for redemption will be determined as set forth in Paragraph 4 of the
Articles Supplementary. The amount of Additional Dividends to be

                                       11
<PAGE>
 
paid by the Paying Agent in the event of a Retroactive Taxable Allocation to
Holders will be determined by the Company pursuant to paragraph 2(e) of the
Articles Supplementary. The Company shall notify the Paying Agent in writing of
a decision to redeem any shares of AMPS on or prior to the date specified in
Section 3.2 above, and such notice by the Company to the Paying Agent shall
contain the information required to be stated in a Notice of Redemption required
to be mailed by the Company to such Holders. The Paying Agent shall have no duty
to determine the redemption price and may rely on the amount thereof set forth
in a Notice of Redemption.

IV.  THE PAYING AGENT AS TRANSFER AGENT AND REGISTRAR.
     ------------------------------------------------ 

     4.1.  Original Issue of Stock Certificates.
           ------------------------------------ 

     On the Date of Original Issue for any share of AMPS, one certificate for
each series of AMPS shall be issued by the Company and registered in the name of
Cede & Co., as nominee of the Securities Depository, and countersigned by the
Paying Agent.  The Company will give the Auction Agent prior written notice and
instruction as to the issuance and redemption of AMPS.

     4.2.  Registration of Transfer or Exchange of Shares.
           ---------------------------------------------- 

     Except as provided in this Section 4.2, the shares of each series of AMPS
shall be registered solely in the name of the Securities Depository or its
nominee.  If the Securities Depository shall give notice of its intention to
resign as such, and if the Company shall not have selected a substitute
Securities Depository acceptable to the Paying Agent prior to such resignation,
then upon such resignation, the shares of each series of AMPS, at the Company's
request, may be registered for transfer or exchange, and new certificates
thereupon shall be issued in the name of the designated transferee or
transferees, upon surrender of the old certificate in form deemed by the Paying
Agent properly endorsed for transfer with (a) all necessary endorsers'
signatures guaranteed in such manner and form as the Paying Agent may require by
a guarantor reasonably believed by the Paying Agent to be responsible, (b) such
assurances as the Paying Agent shall deem necessary or appropriate to evidence
the genuineness and effectiveness of each necessary endorsement and (c)
satisfactory evidence of compliance with all applicable laws relating to the
collection of taxes in connection with any registration of transfer or exchange
or funds necessary for the payment of such taxes.  If the certificate or
certificates for shares of AMPS are not held by the Securities Depository or its
nominee, payments upon transfer of shares in an Auction shall be made in Federal
Funds or similar same-day funds to the Auction Agent against delivery of
certificates therefor.

     4.3.  Removal of Legend.
           ----------------- 

     Any request for removal of a legend indicating a restriction on transfer
from a certificate evidencing shares of AMPS shall be accompanied by an opinion
of counsel stating that such legend may be removed and such shares may be
transferred free of the restriction described in such legend, said opinion to be
delivered under cover of a letter from a Company Officer authorizing the Paying
Agent to remove the legend on the basis of said opinion.

                                       12
<PAGE>
 
     4.4.  Lost, Stolen or Destroyed Stock Certificates.
           -------------------------------------------- 

     The Paying Agent shall issue and register replacement certificates for
certificates represented to have been lost, stolen or destroyed, upon the
fulfillment of such requirements as shall be deemed appropriate by the Company
and by the Paying Agent, subject at all times to provisions of law, the By-Laws
of the Company governing such matters and resolutions adopted by the Company
with respect to lost, stolen or destroyed securities.  The Paying Agent may
issue new certificates in exchange for and upon the cancellation of mutilated
certificates.  Any request by the Company to the Paying Agent to issue a
replacement or new certificate pursuant to this Section 4.4 shall be deemed to
be a representation and warranty by the Company to the Paying Agent that such
issuance will comply with provisions of applicable law and the By-Laws and
resolutions of the Company.

     4.5.  Disposition of Canceled Certificates;
           Record Retention.
           -------------------------------------

     The Paying Agent shall retain stock certificates which have been canceled
in transfer or in exchange and accompanying documentation in accordance with
applicable rules and regulations of the Securities and Exchange Commission for
two calendar years from the date of such cancellation.  The Paying Agent, upon
written request by the Company, shall afford to the Company, its agents and
counsel access at reasonable times during normal business hours to review and
make extracts or copies (at the Company's sole cost and expense) of such
certificates and accompanying documentation.  Upon request by the Company at any
time after the expiration of this two-year period, the Paying Agent shall
deliver to the Company the canceled certificates and accompanying documentation.
The Company, at its expense, shall retain such records for a minimum additional
period of four calendar years from the date of delivery of the records to the
Company and shall make such records available during this period at any time, or
from time to time, for reasonable periodic, special, or other examinations by
representatives of the Securities and Exchange Commission.  The Company also
shall undertake to furnish to the Securities and Exchange Commission, upon
demand, either at their principal office or at any regional office, complete,
correct and current hard copies of any and all such records.  Thereafter, such
records shall not be destroyed by the Company without the approval of the Paying
Agent, which approval shall not be withheld unreasonably, but will be safely
stored for possible future reference.

     4.6.  Stock Register.
           -------------- 

     The Paying Agent shall maintain the stock register, which shall contain a
list of the Holders, the number of shares held by each Holder and the address of
each Holder.  The Paying Agent shall record in the stock register any change of
address of a Holder upon notice by such Holder.  In case of any written request
or demand for the inspection of the stock register or any other books of the
Company in the possession of the Paying Agent, the Paying Agent will notify the
Company and secure instructions as to permitting or refusing such inspection.
The Paying Agent reserves the right, however, to exhibit the stock register or
other records to any person in case it is advised by its counsel that its
failure to do so would (i) be unlawful or (ii) expose it to liability, unless
the Company shall have offered indemnification satisfactory to the Paying Agent.

                                       13
<PAGE>
 
     4.7.  Return of Funds.
           --------------- 

     Any funds deposited with the Paying Agent by the Company for any reason
under this Agreement, including for the payment of dividends or the redemption
of shares of any series of AMPS, that remain with the Paying Agent after 12
months shall be repaid to the Company upon written request by the Company.

V.   REPRESENTATIONS AND WARRANTIES.
     ------------------------------ 

     5.1.  Representations and Warranties of the Company.
           --------------------------------------------- 

     The Company represents and warrants to the Auction Agent that:

       (i) the Company is duly organized and is validly existing as a
     corporation in good standing under the laws of the State of Maryland, and
     has full power to execute and deliver this Agreement and to authorize,
     create and issue the shares of AMPS;

       (ii) the Company is registered with the Securities and Exchange
     Commission under the Investment Company Act of 1940, as amended, as a
     closed-end, non-diversified, management investment company;

       (iii)  this Agreement has been duly and validly authorized, executed and
     delivered by the Company and constitutes the legal, valid and binding
     obligation of the Company, enforceable against the Company in accordance
     with its terms, subject as to such enforceability to bankruptcy,
     insolvency, reorganization and other laws of general applicability relating
     to or affecting creditors' rights and to general equitable principles;

       (iv) the forms of the certificates evidencing the shares of each series
     of AMPS comply with all applicable laws of the State of Maryland;

       (v) the shares of each series of AMPS have been duly and validly
     authorized by the Company and, upon completion of the initial sale of the
     shares of such series of AMPS and receipt of payment therefor, will be
     validly issued, fully paid and nonassessable;

       (vi) at the time of the offering of the shares of each series of AMPS,
     the shares offered will be registered under the Securities Act of 1933, as
     amended, and no further action by or before any governmental body or
     authority of the United States or of any state thereof is required in
     connection with the execution and delivery of this Agreement or will be
     required in connection with the issuance of the shares of AMPS, except such
     action as required by applicable state securities or insurance laws, all of
     which action will have been taken;

       (vii)  the execution and delivery of this Agreement and the issuance and
     delivery of the shares of each series of AMPS do not and will not conflict
     with, violate, or result in a breach of, the terms, conditions or
     provisions of, or constitute a default under, the Charter or the By-Laws of
     the Company, any law or regulation applicable to the Company, any order or
     decree of any court or public authority having jurisdiction over the
     Company, or 

                                       14
<PAGE>
 
     any mortgage, indenture, contract, agreement or undertaking to which the
     Company is a party or by which it is bound; and

       (viii)  no taxes are payable upon or in respect of the execution of this
     Agreement or will be payable upon or in respect of the issuance of the
     shares of each series of AMPS.

     5.2.  Representations and Warranties of the Auction Agent.
           --------------------------------------------------- 

     The Auction Agent represents and warrants to the Company that the Auction
Agent is duly organized and is validly existing as a banking corporation in good
standing under the laws of the State of New York, and has the corporate power to
enter into and perform its obligations under this Agreement.

VI.  THE AUCTION AGENT.
     ----------------- 

     6.1.  Duties and Responsibilities.
           --------------------------- 

           (a) The Auction Agent is acting solely as agent for the Company
           hereunder and owes no fiduciary duties to any Person except as
           provided by this Agreement.

           (b) The Auction Agent undertakes to perform such duties and only such
           duties as are set forth specifically in this Agreement, and no
           implied covenants or obligations shall be read into this Agreement
           against the Auction Agent.

           (c) In the absence of bad faith or negligence on its part, the
           Auction Agent shall not be liable for any action taken, suffered or
           omitted by it or for any error of judgment made by it in the
           performance of its duties under this Agreement. The Auction Agent
           shall not be liable for any error of judgment made in good faith
           unless the Auction Agent shall have been negligent in ascertaining
           (or failing to ascertain) the pertinent facts.

     6.2.  Rights of the Auction Agent.
           --------------------------- 

           (a) The Auction Agent may rely upon, and shall be protected in acting
           or refraining from acting upon, any communication authorized hereby
           and any written instruction, notice, request, direction, consent,
           report, certificate, share certificate or other instrument, paper or
           document reasonably believed by it to be genuine.  The Auction Agent
           shall not be liable for acting upon any telephone communication
           authorized hereby which the Auction Agent believes in good faith to
           have been given by the Company or by a Broker-Dealer. The Auction
           Agent may record telephone communications with the Company or with
           the Broker-Dealers or with both.

           (b) The Auction Agent may consult with counsel of its choice, and the
           written advice of such counsel shall be full and complete
           authorization and protection in respect of any action taken, suffered
           or omitted by it hereunder in good faith and in reliance thereon.

                                       15
<PAGE>
 
           (c) The Auction Agent shall not be required to advance, expend or
           risk its own funds or otherwise incur or become exposed to financial
           liability in the performance of its duties hereunder. The Auction
           Agent shall be under no liability for interest on any money received
           by it hereunder except as otherwise agreed in writing with the
           Company.

           (d) The Auction Agent may perform its duties and exercise its rights
           hereunder either directly or by or through agents or attorneys.

     6.3.  Auction Agent's Disclaimer.
           -------------------------- 

     The Auction Agent makes no representation as to the validity or the
adequacy of this Agreement, the Broker-Dealer Agreements or the AMPS.

     6.4.  Compensation, Expenses and Indemnification.
           ------------------------------------------

          (a) The Company shall pay to the Auction Agent from time to time
          reasonable compensation for all services rendered by it under this
          Agreement and under the Broker-Dealer Agreements as shall be set forth
          in a separate writing signed by the Company and the Auction Agent,
          subject to adjustments if the AMPS no longer are held of record by the
          Securities Depository or its nominee or if there shall be such other
          change as shall increase materially the Auction Agent's obligations
          hereunder or under the Broker-Dealer Agreements.

          (b) The Company shall reimburse the Auction Agent upon its request for
          all reasonable expenses, disbursements and advances incurred or made
          by the Auction Agent in accordance with any provision of this
          Agreement and of the Broker-Dealer Agreements (including the
          reasonable compensation, expenses and disbursements of its agents and
          counsel), except any expense, disbursement or advance attributable to
          its negligence or bad faith.

          (c) The Company shall indemnify the Auction Agent for, and hold it
          harmless against, any loss, liability or expense incurred without
          negligence or bad faith on its part arising out of or in connection
          with its agency under this Agreement and under the Broker-Dealer
          Agreements, including the costs and expenses of defending itself
          against any claim of liability in connection with its exercise or
          performance of any of its duties hereunder and thereunder, except such
          as may result from its negligence or bad faith.

VII.  MISCELLANEOUS.
      ------------- 

     7.1. Term of Agreement.
          -----------------

          (a) The term of this Agreement is unlimited unless it shall be
          terminated as provided in this Section 7.1.  The Company may terminate
          this Agreement at any time by so notifying the Auction Agent, provided
          that if any AMPS remain outstanding the Company shall have entered
          into an agreement in substantially the form of this Agreement with a
          successor auction agent.  The Auction Agent may 

                                       16
<PAGE>
 
          terminate this Agreement upon prior notice to the Company on the date
          specified in such notice, which date shall be no earlier than 60 days
          after delivery of such notice. If the Auction Agent resigns while any
          shares of AMPS remain outstanding, the Company shall use its best
          efforts to enter into an agreement with a successor auction agent
          containing substantially the same terms and conditions as this
          Agreement.

          (b) Except as otherwise provided in this Section 7.1(b), the
          respective rights and duties of the Company and the Auction Agent
          under this Agreement shall cease upon termination of this Agreement.
          The Company's representations, warranties, covenants and obligations
          to the Auction Agent under Sections 5 and 6.4 hereof shall survive the
          termination hereof.  Upon termination of this Agreement, the Auction
          Agent shall (i) resign as Auction Agent under the Broker-Dealer
          Agreements, (ii) at the Company's request, deliver promptly to the
          Company copies of all books and records maintained by it in connection
          with its duties hereunder, and (iii) at the request of the Company,
          transfer promptly to the Company or to any successor auction agent any
          funds deposited by the Company with the Auction Agent (whether in its
          capacity as Auction Agent or as Paying Agent) pursuant to this
          Agreement which have not been distributed previously by the Auction
          Agent in accordance with this Agreement.

     7.2. Communications.
          -------------- 
          
     Except for (i) communications authorized to be made by telephone pursuant
to this Agreement or the Auction Procedures and (ii) communications in
connection with Auctions (other than those expressly required to be in writing),
all notices, requests and other communications to any party hereunder shall be
in writing (including telecopy or similar writing) and shall be given to such
party at its address or telecopier number set forth below:

     If to the Company,         MuniHoldings California Insured Fund III, Inc.
     addressed to:              800 Scudders Mill Road
                                Plainsboro, New Jersey 08536

                                Attention:  Treasurer
                                Telephone No.: (609) 282-2800
                                Telecopier No.: (609) 282-3472


     If to the Auction          IBJ Schroder Bank & Trust Company
     Agent, addressed to:       One State Street
                                New York, New York 10004

                                Attention: Auction Window Subcellar 1
                                Telephone No.: (212) 858-2315
                                Telecopier No.: (212) 797-1148

or such other address or telecopier number as such party hereafter may specify
for such purpose by notice to the other party.  Each such notice, request or
communication shall be effective when 

                                       17
<PAGE>
 
delivered at the address specified herein. Communications shall be given on
behalf of the Company by a Company Officer and on behalf of the Auction Agent by
an Authorized Officer.

     7.3.  Entire Agreement.
           ---------------- 

     This Agreement contains the entire agreement between the parties relating
to the subject matter hereof, and there are no other representations,
endorsements, promises, agreements or understandings, oral, written or inferred,
between the parties relating to the subject matter hereof, except for agreements
relating to the compensation of the Auction Agent.

     7.4.  Benefits.
           -------- 

     Nothing herein, express or implied, shall give to any Person, other than
the Company, the Auction Agent and their respective successors and assigns, any
benefit of any legal or equitable right, remedy or claim hereunder.

     7.5.  Amendment; Waiver.
           ----------------- 

           (a) This Agreement shall not be deemed or construed to be modified,
           amended, rescinded, canceled or waived, in whole or in part, except
           by a written instrument signed by a duly authorized representative of
           the party to be charged. The Company shall notify the Auction Agent
           of any change in the Articles Supplementary prior to the effective
           date of any such change. If any such change in the Articles
           Supplementary materially increases the Auction Agent's obligations
           hereunder, the Company shall obtain the written consent to the
           Auction Agent prior to the effective date of such change.

           (b) Failure of either party hereto to exercise any right or remedy
           hereunder in the event of a breach hereof by the other party shall
           not constitute a waiver of any such right or remedy with respect to
           any subsequent breach.

     7.6.  Successors and Assigns.
           ---------------------- 

     This Agreement shall be binding upon, inure to the benefit of, and be
enforceable by, the respective successors and permitted assigns of each of the
Company and the Auction Agent.  This Agreement may not be assigned by either
party hereto absent the prior written consent of the other party, which consent
shall not be withheld unreasonably.

     7.7.  Severability.
           ------------ 

     If any clause, provision or section hereof shall be ruled invalid or
unenforceable by any court of competent jurisdiction, the invalidity or
unenforceability of such clause, provision or section shall not affect any of
the remaining clauses, provisions or sections hereof.

     7.8.  Execution in Counterparts.
           ------------------------- 

     This Agreement may be executed in several counterparts, each of which shall
be an original and all of which shall constitute but one and the same
instrument.

                                       18
<PAGE>
 
     7.9.  Governing Law.
           ------------- 

     This Agreement shall be governed by and construed in accordance with the
laws of the State of New York applicable to agreements made and to be performed
in said State.

                                       19
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed and delivered by their proper and duly authorized officers as of
the date first above written.

                              MUNIHOLDINGS CALIFORNIA INSURED
                                    FUND III, INC.

                              By:
                                  -------------------------------
                                  Name:
                                  Title:

                              IBJ SCHRODER BANK & TRUST COMPANY

                              By:
                                  -------------------------------
                                  Name:
                                  Title:

                                       20

<PAGE>
 
                                                                  EXHIBIT (k)(3)

================================================================================


 
                            BROKER-DEALER AGREEMENT

                                    between

                       IBJ SCHRODER BANK & TRUST COMPANY

                                      and

                            [NAME OF BROKER-DEALER]

                           Dated as of _______, 1998

                                  Relating to

                       AUCTION MARKET PREFERRED STOCK(R)

                                  ("AMPS"(R)),

                                 Series A and B

                                       of

                 MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.

                           

================================================================================


(R)  Registered trademark of Merrill Lynch & Co., Inc.

<PAGE>
 
     BROKER-DEALER AGREEMENT dated as of ______, 1998, between IBJ SCHRODER BANK
& TRUST COMPANY, a New York banking corporation (the "Auction Agent") (not in
its individual capacity, but solely as agent of MuniHoldings California Insured
Fund III, Inc., a Maryland corporation (the "Company"), pursuant to authority
granted to it in the Auction Agent Agreement dated as of ______, 1998, between
the Company and the Auction Agent (the "Auction Agent Agreement")), and [NAME OF
BROKER-DEALER] (together with its successors and assigns, "BD").

     The Company proposes to duly authorize and issue _____ shares of Auction
Market Preferred Stock(R), Series A ("Series A AMPS"), and _____ shares of
Auction Market Preferred Stock(R), Series B ("Series B AMPS"), each with a par
value of $.10 per share and a liquidation preference of $25,000 per share plus
accumulated but unpaid dividends (whether or not earned or declared), each
pursuant to the Company's Articles Supplementary (as defined below).  The Series
A AMPS and Series B AMPS are sometimes herein referred to together as the
"AMPS."

     The Company's Articles Supplementary provide that the dividend rate on each
series of AMPS for each Dividend Period therefor after the Initial Dividend
Period shall be the Applicable Rate therefor, which in each case, in general
shall be the rate per annum that a commercial bank, trust company or other
financial institution appointed by the Company advises results from
implementation of the Auction Procedures (as defined below).  The Board of
Directors of the Company has adopted a resolution appointing IBJ Schroder Bank &
Trust Company as Auction Agent for purposes of the Auction Procedures, and
pursuant to Section 2.5(d) of the Auction Agent Agreement, the Company has
requested and directed the Auction Agent to execute and deliver this Agreement.

     The Auction Procedures require the participation of one or more Broker-
Dealers.

- ----------------
(R)  Registered trademark of Merrill Lynch & Co., Inc.
<PAGE>
 
     NOW, THEREFORE, in consideration of the mutual covenants contained herein,
the Auction Agent and BD agree as follows:

I.   DEFINITIONS AND RULES OF CONSTRUCTION.
     ------------------------------------- 

     1.1.  Terms Defined by Reference to the Articles   Supplementary.
           -------------------------------------------  -------------  
Capitalized terms not defined herein shall have the respective meanings
specified in the Articles Supplementary of the Company.

     1.2.  Terms Defined Herein.  As used herein and in the Settlement
           --------------------                                       
Procedures (as defined below), the following terms shall have the following
meanings, unless the context otherwise requires:

          (a) "Articles Supplementary" shall mean the Articles Supplementary, as
amended, of the Company, establishing the powers, preferences and rights of the
AMPS filed on ______, 1998 with the State Department of Assessments and Taxation
of Maryland.

          (b)  "Auction" shall have the meaning specified in Section 3.1 hereof.

          (c)  "Auction Procedures" shall mean the Auction Procedures that are
set forth in Paragraph 10 of the Articles Supplementary.

          (d)  "Authorized Officer" shall mean each Senior Vice President, Vice
President, Assistant Vice President, Trust Officer, Assistant Secretary and
Assistant Treasurer of the Auction Agent assigned to its Corporate Trust and
Agency Group and every other officer or employee of the Auction Agent designated
as an "Authorized Officer" for purposes of this Agreement in a communication to
BD.

          (e) "BD Officer" shall mean each officer or employee of BD designated
as a "BD Officer" for purposes of this Agreement in a communication to the
Auction Agent.

          (f) "Broker-Dealer Agreement" shall mean this Agreement and any
substantially similar agreement between the Auction Agent and a Broker-Dealer.

          (g) "Settlement Procedures" shall mean the Settlement Procedures
attached hereto as Exhibit A.

     1.3.  Rules of Construction.  Unless the context or use indicates another
           ---------------------                                              
or different meaning or intent, the following rules shall apply to the
construction of this Agreement:

          (a) Words importing the singular number shall include the plural
number and vice versa.

          (b) The captions and headings herein are solely for convenience of
reference and shall not constitute a part of this Agreement, nor shall they
affect its meaning, construction or effect.

                                       2
<PAGE>
 
          (c) The words "hereof," "herein," "hereto," and other words of similar
import refer to this Agreement as a whole.

          (d) All references herein to a particular time of day shall be to New
York City time.

II.  NOTIFICATION OF DIVIDEND PERIOD AND ADVANCE NOTICE OF
     ALLOCATION OF TAXABLE INCOME.
     -----------------------------------------------------

     2.1.  The provisions contained in paragraph 2 of the Articles Supplementary
concerning the notification of a Special Dividend Period will be followed by the
Auction Agent and BD, and the provisions contained therein are incorporated
herein by reference in their entirety and shall be deemed to be a part of this
Agreement to the same extent as if such provisions were set forth fully herein.

     2.2.  Except as otherwise provided in paragraph 2(f) of the Articles
Supplementary, whenever the Company intends to include any net capital gains or
other income subject to regular Federal income tax in any dividend on shares of
any series of AMPS, the Company will notify the Auction Agent of the amount to
be so included at least five Business Days prior to the Auction Date on which
the Applicable Rate for such dividend is to be established.  Whenever the
Auction Agent receives such notice from the Company, in turn it will notify BD,
who, on or prior to such Auction Date, will notify its Beneficial Owners and
Potential Beneficial Owners believed to be interested in submitting an Order in
the Auction to be held on such Auction Date.  Whenever the Company intends to
include any additional amounts in a dividend as provided in paragraph 2(f) of
the Articles Supplementary, the Company will notify the Auction Agent of such
additional amounts to be so included in such dividend at least five Business
Days prior to the applicable Dividend Payment Date.  Whenever the Auction Agent
receives such notice from the Company, in turn it will notify the Securities
Depository and BD, who, on or prior to the applicable Dividend Payment Date,
will notify its Beneficial Owners.

III. THE AUCTION.
     ----------- 

     3.1. Purpose; Incorporation by Reference of Auction Procedures and
          -------------------------------------------------------------
Settlement Procedures.
- --------------------- 

          (a) On each Auction Date, the provisions of the Auction Procedures
will be followed by the Auction Agent for the purpose of determining the
Applicable Rate for each series of AMPS, for the next Dividend Period therefor.
Each periodic operation of such procedures is hereinafter referred to as an
"Auction."

          (b) All of the provisions contained in the Auction Procedures and the
Settlement Procedures are incorporated herein by reference in their entirety and
shall be deemed to be a part of this Agreement to the same extent as if such
provisions were set forth fully herein.

          (c) BD agrees to act as, and assumes the obligations of and
limitations and restrictions placed upon, a Broker-Dealer under this Agreement.
BD understands that other Persons meeting the requirements specified in the
definition of "Broker-Dealer" contained in

                                       3
<PAGE>
 
Paragraph 1 of the Articles Supplementary may execute a Broker-Dealer Agreement
and participate as Broker-Dealers in Auctions.

          (d) BD and other Broker-Dealers may participate in Auctions for their
own accounts.  However, the Company, by notice to BD and all other Broker
Dealers, may prohibit all Broker-Dealers from submitting Bids in Auctions for
their own accounts, provided that Broker-Dealers may continue to submit Hold
Orders and Sell Orders.

     3.2.  Preparation for Each Auction.
           ---------------------------- 

          (a) Not later than 9:30 A.M. on each Auction Date for the AMPS, the
Auction Agent shall advise BD by telephone of the Reference Rate and the Maximum
Applicable Rate in effect on such Auction Date.

          (b) In the event that the Auction Date for any Auction shall be
changed after the Auction Agent has given the notice referred to in clause (vii)
of paragraph (a) of the Settlement Procedures, the Auction Agent, by such means
as the Auction Agent deems practicable, shall give notice of such change to BD
not later than the earlier of 9:15 A.M. on the new Auction Date or 9:15 A.M. on
the old Auction Date.  Thereafter, BD promptly shall notify customers of BD that
BD believes are Beneficial Owners of shares of AMPS of such change in the
Auction Date.

          (c) The Auction Agent from time to time may request BD to provide it
with a list of the respective customers BD believes are Beneficial Owners of
shares of each series of AMPS.  BD shall comply with any such request, and the
Auction Agent shall keep confidential any such information, including
information received as to the identity of Bidders in any Auction, and shall not
disclose any such information so provided to any Person other than the Company;
and such information shall not be used by the Auction Agent or its officers,
employees, agents or representatives for any purpose other than such purposes as
are described herein.  The Auction Agent shall transmit any list of customers BD
believes are Beneficial Owners of shares of each series of AMPS and information
related thereto only to its officers, employees, agents or representatives in
the Corporate Trust and Agency Group who need to know such information for the
purposes of acting in accordance with this Agreement, and the Auction Agent
shall prevent the transmission of such information to others and shall cause its
officers, employees, agents and representatives to abide by the foregoing
confidentiality restrictions; provided, however, that the Auction Agent shall
have no responsibility or liability for the actions of any of its officers,
employees, agents or representatives after they have left the employ of the
Auction Agent.

     3.3.  Auction Schedule; Method of Submission of Orders.
           ------------------------------------------------ 

          (a) The Company and the Auction Agent shall conduct Auctions for each
series of AMPS in accordance with the schedule set forth below.  Such schedule
may be changed at any time by the Auction Agent with the consent of the Company,
which consent shall not be withheld unreasonably. The Auction Agent shall give
notice of any such change to BD. Such notice shall be received prior to the
first Auction Date on which any such change shall be effective.

                                       4
<PAGE>
 
<TABLE> 
<CAPTION> 
          Time                            Event
          ----                            -----
<S>                             <C> 
   By 9:30 A.M.                 Auction Agent advises the Company and 
                                Broker-Dealers of the Reference Rate and the 
                                Maximum Applicable Rate as set forth in Section 
                                3.2(a) hereof.

   9:30 A.M. - 1:00 P.M.        Auction Agent assembles information communicated to
                                it by Broker- Dealers as provided in Paragraph
                                10(c)(i) of the Articles Supplementary.
                                Submission Deadline is 1:00 P.M.

   Not earlier than 1:00 P.M.   Auction Agent makes determinations pursuant to
                                Paragraph 10(d)(i) of the Articles Supplementary.

   By approximately 3:00 P.M.   Auction Agent advises the Company of the results
                                of the Auction as provided in Paragraph 10(d)(ii)
                                of the Articles Supplementary.

                                Submitted Bids and Submitted Sell Orders are 
                                accepted and rejected in whole or in part and shares 
                                of AMPS are allocated as provided in Paragraph 
                                10(e) of the Articles Supplementary.

                                Auction Agent gives notice of the Auction results as 
                                set forth in Section 3.4(a) hereof.
</TABLE> 

          (b) BD agrees to maintain a list of Potential Beneficial Owners and to
contact the Potential Beneficial Owners on such list on or prior to each Auction
Date for the purposes set forth in Paragraph 10 of the Articles Supplementary.

          (c) BD shall submit Orders to the Auction Agent in writing in
substantially the form attached hereto as Exhibit B.  BD shall submit separate
Orders to the Auction Agent for each Potential Beneficial Owner or Beneficial
Owner on whose behalf BD is submitting an Order and shall not net or aggregate
the Orders of Potential Beneficial Owners or Beneficial Owners on whose behalf
BD is submitting Orders.

          (d) BD shall deliver to the Auction Agent (i) a written notice,
substantially in the form attached hereto as Exhibit C, of transfers of shares
of any series of AMPS, made through BD by an Existing Holder to another Person
other than pursuant to an Auction, and (ii) a written notice, substantially in
the form attached hereto as Exhibit D, of the failure of shares of any series of
any series of AMPS to be transferred to or by any Person that purchased or sold
shares of any series of AMPS through BD pursuant to an Auction. The Auction
Agent is not required to accept any notice delivered pursuant to the terms of
the foregoing sentence with respect to an Auction unless it is received by the
Auction Agent by 3:00 P.M. on the Business Day next preceding the applicable
Auction Date.

                                       5
<PAGE>
 
     3.4.  Notice of Auction Results.
           ------------------------- 

          (a) On each Auction Date, the Auction Agent shall notify BD by
telephone as set forth in paragraph (a) of the Settlement Procedures.  On the
Business Day next succeeding such Auction Date, the Auction Agent shall notify
BD in writing of the disposition of all Orders submitted by BD in the Auction
held on such Auction Date.

          (b) BD shall notify each Beneficial Owner, Potential Beneficial Owner,
Existing Holder or Potential Holder on whose behalf BD has submitted an Order as
set forth in paragraph (b) of the Settlement Procedures, and take such other
action as is required of BD pursuant to the Settlement Procedures.

     If any Beneficial Owner or Existing Holder selling shares of AMPS in an
Auction fails to deliver such shares, the BD of any Person that was to have
purchased shares of such series of AMPS in such Auction may deliver to such
Person a number of whole shares of such series of AMPS that is less than the
number of shares that otherwise was to be purchased by such Person.  In such
event, the number of shares of such series of AMPS to be so delivered shall be
determined by such BD.  Delivery of such lesser number of shares shall
constitute good delivery.  Upon the occurrence of any such failure to deliver
shares, such BD shall deliver to the Auction Agent the notice required by
Section 3.3(d)(ii) hereof.  Notwithstanding the foregoing terms of this Section
3.4(b), any delivery or non-delivery of shares of any series of AMPS which
represents any departure from the results of an Auction, as determined by the
Auction Agent, shall be of no effect unless and until the Auction Agent shall
have been notified of such delivery or non-delivery in accordance with the terms
of Section 3.3(d) hereof.  The Auction Agent shall have no duty or liability
with respect to enforcement of this Section 3.4(b).

     3.5.  Service Charge to Be Paid to BD.  On the Business Day next succeeding
           -------------------------------                                      
each Auction Date, the Auction Agent shall pay to BD from moneys received from
the Company an amount equal to:  (a) in the case of any Auction Date immediately
preceding a 7-Day Dividend Period or 28-Day Dividend Period, the product of (i)
a fraction the numerator of which is the number of days in such Dividend Period
(calculated by counting the first day of such Dividend Period but excluding the
last day thereof) and the denominator of which is 360, times (ii) 1/4 of 1%,
times (iii) $25,000, times (iv) the sum of (A) the aggregate number of AMPS
placed by BD in the applicable Auction that were (x) the subject of a Submitted
Bid of a Beneficial Owner submitted by BD and continued to be held as a result
of such submission and (y) the subject of a Submitted Bid of a Potential
Beneficial Owner submitted by BD and were purchased as a result of such
submission plus (B) the aggregate number of AMPS subject to valid Hold Orders
(determined in accordance with Paragraph 10 of the Articles Supplementary)
submitted to the Auction Agent by BD plus (C) the number of AMPS deemed to be
subject to Hold Orders by Beneficial Owners pursuant to Paragraph 10 of the
Articles Supplementary that were acquired by such Beneficial Owners through BD;
and (b) in the case of any Auction Date immediately preceding a Special Dividend
Period, that amount as mutually agreed upon by the Company and BD, based on the
selling concession that would be applicable to an underwriting of fixed or
variable rate preferred shares with a similar final maturity or variable rate
dividend period, at the commencement of such Special Dividend Period.

                                       6
<PAGE>
 
     For purposes of subclause (a)(iv)(C) of the foregoing sentence, if any
Beneficial Owner who acquired shares of any series of AMPS through BD transfers
those shares to another Person other than pursuant to an Auction, then the
Broker-Dealer for the shares so transferred shall continue to be BD, provided,
however, that if the transfer was effected by, or if the transferee is, a
Broker-Dealer other than BD, then such Broker-Dealer shall be the Broker-Dealer
for such shares.

IV.  THE AUCTION AGENT.
     ----------------- 

     4.1.  Duties and Responsibilities.
           --------------------------- 

          (a) The Auction Agent is acting solely as agent for the Company
hereunder and owes no fiduciary duties to any other Person by reason of this
Agreement.

          (b) The Auction Agent undertakes to perform such duties and only such
duties as are set forth specifically in this Agreement, and no implied covenants
or obligations shall be read into this Agreement against the Auction Agent.

          (c) In the absence of bad faith or negligence on its part, the Auction
Agent shall not be liable for any action taken, suffered or omitted by it, or
for any error of judgment made by it in the performance of its duties under this
Agreement.  The Auction Agent shall not be liable for any error of judgment made
in good faith unless the Auction Agent shall have been negligent in ascertaining
(or failing to ascertain) the pertinent facts.

     4.2.  Rights of the Auction Agent.
           --------------------------- 

          (a) The Auction Agent may rely upon, and shall be protected in acting
or refraining from acting upon, any communication authorized by this Agreement
and any written instruction, notice, request, direction, consent, report,
certificate, share certificate or other instrument, paper or document believed
by it to be genuine.  The Auction Agent shall not be liable for acting upon any
telephone communication authorized by this Agreement which the Auction Agent
believes in good faith to have been given by the Company or by BD.  The Auction
Agent may record telephone communications with BD.

          (b) The Auction Agent may consult with counsel of its own choice, and
the advice of such counsel shall be full and complete authorization and
protection in respect of any action taken, suffered or omitted by it hereunder
in good faith and in reliance thereon.

          (c) The Auction Agent shall not be required to advance, expend or risk
its own funds or otherwise incur or become exposed to financial liability in the
performance of its duties hereunder.

          (d) The Auction Agent may perform its duties and exercise its rights
hereunder either directly or by or through agents or attorneys.

     4.3.  Auction Agent's Disclaimer.  The Auction Agent makes no
           --------------------------                             
representation as to the validity or adequacy of this Agreement or the AMPS.

                                       7
<PAGE>
 
V.   MISCELLANEOUS.
     ------------- 

     5.1.  Termination.  Any party may terminate this Agreement at any time upon
           -----------                                                          
five days' prior written notice to the other party; provided, however, that if
BD is Merrill Lynch, Pierce, Fenner & Smith Incorporated, neither BD nor the
Auction Agent may terminate this Agreement without first obtaining the prior
written consent of the Company to such termination, which consent shall not be
withheld unreasonably.

     5.2. Participant in Securities Depository; Payment of Dividends in Same-Day
          ----------------------------------------------------------------------
          Funds.
          ----- 

          (a)  BD is, and shall remain for the term of this Agreement, a member
of, or a participant in, the Securities Depository (or an affiliate of such a
member or participant).

          (b) BD represents that it (or if BD does not act as Agent Member, one
of its affiliates) shall make all dividend payments on the AMPS available in
same-day funds on each Dividend Payment Date to customers that use BD (or its
affiliate) as Agent Member.

     5.3.  Agent Member.  At the date hereof, BD is a participant of the
           ------------                                                 
Securities Depository.

     5.4.  Communications.  Except for (i) communications authorized to be made
           --------------                                                      
by telephone pursuant to this Agreement or the Auction Procedures and (ii)
communications in connection with the Auctions (other than those expressly
required to be in writing), all notices, requests and other communications to
any party hereunder shall be in writing (including telecopy or similar writing)
and shall be given to such party at its address or telecopier number set forth
below:

If to BD, addressed to:
                                        --------------------------
                                        --------------------------
                                        -------------------------- 
                                        Attention:                 

                                        Telecopier No.:  (212) 449-4321
                                        Telephone No.:  (212) 449-6500

If to the Auction Agent, addressed to:  IBJ Schroder Bank & Trust Company
                                        One State Street
                                        New York, New York  10004

                                        Attention:  Auction Window
                                                    Subcellar 1

                                        Telecopier No.: (212) 797-1148
                                        Telephone No.:  (212) 858-2135

or such other address or telecopier number as such party hereafter may specify
for such purpose by notice to the other party.  Each such notice, request or
communication shall be effective when delivered at the address specified herein.
Communications shall be given on behalf of BD by a 

                                       8
<PAGE>
 
BD Officer and on behalf of the Auction Agent by an Authorized Officer. BD may
record telephone communications with the Auction Agent.

     5.5.  Entire Agreement.  This Agreement contains the entire agreement
           ----------------                                               
between the parties relating to the subject matter hereof, and there are no
other representations, endorsements, promises, agreements or understandings,
oral, written or inferred, between the parties relating to the subject matter
hereof.

     5.6.  Benefits.  Nothing in this Agreement, express or implied, shall give
           --------                                                            
to any person, other than the Company, the Auction Agent and BD and their
respective successors and assigns, any benefit of any legal or equitable right,
remedy or claim under this Agreement.

     5.7.  Amendment; Waiver.
           ----------------- 

          (a) This Agreement shall not be deemed or construed to be modified,
amended, rescinded, canceled or waived, in whole or in part, except by a written
instrument signed by a duly authorized representative of the party to be
charged.

          (b) Failure of either party to this Agreement to exercise any right or
remedy hereunder in the event of a breach of this Agreement by the other party
shall not constitute a waiver of any such right or remedy with respect to any
subsequent breach.

     5.8.  Successors and Assigns.  This Agreement shall be binding upon, inure
           ----------------------                                              
to the benefit of, and be enforceable by, the respective successors and
permitted assigns of each of BD and the Auction Agent. This Agreement may not be
assigned by either party hereto absent the prior written consent of the other
party; provided, however, that this Agreement may be assigned by the Auction
Agent to a successor Auction Agent selected by the Company without the consent
of BD.

     5.9.  Severability.  If any clause, provision or section of this Agreement
           ------------                                                        
shall be ruled invalid or unenforceable by any court of competent jurisdiction,
the invalidity or unenforceability of such clause, provision or section shall
not affect any remaining clause, provision or section hereof.

     5.10.  Execution in Counterparts.  This Agreement may be executed in
            -------------------------                                    
several counterparts, each of which shall be an original and all of which shall
constitute but one and the same instrument.

     5.11.  Governing Law.  This Agreement shall be governed by and construed in
            -------------                                                       
accordance with the laws of the State of New York applicable to agreements made
and to be performed in said State.

                                       9
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed and delivered by their proper and duly authorized officers as of
the date first above written.

                    IBJ SCHRODER BANK & TRUST COMPANY



                    -----------------------------------
                    By:
                    Title:



                    [NAME OF BROKER-DEALER]


                    ----------------------------------- 
                    By:
                    Title:

                                       10
<PAGE>
 
                                                                       EXHIBIT A
                                                                       ---------

                             SETTLEMENT PROCEDURES
                             ---------------------



                               [From Prospectus]
<PAGE>
 
                                                                       EXHIBIT B
                                                                       ---------
                                                                                
                       IBJ SCHRODER BANK & TRUST COMPANY
                               AUCTION BID FORM
                       ---------------------------------

Submit To:  IBJ Schroder Bank & Trust Co.     Issue: MuniHoldings California
             Securities Transfer Department     Insured Fund III, Inc.

            One State Street                    Series: _______________________
            New York, New York 10004            Auction Date:__________________
                                    
            Attention: Auction Window
            Telephone: (212) 858-2272
            Facsimile: (212) 797-1148

The undersigned Broker-Dealer submits the following Order on behalf of the
Bidder listed below:

Name of Bidder:
                ---------------------

                               BENEFICIAL OWNER

Shares now held:                                HOLD
                ---------------------               ------------------
                                                BID at rate of
                                                              --------
                                                SELL
                                                    ------------------

                           POTENTIAL BENEFICIAL OWNER

                                                # of shares bid
                                                               -------
                                                BID at rate of
                                                               -------
Notes:

(1)  If submitting more than one Bid for one Bidder, use additional Auction Bid
     Forms.

(2)  If one or more Bids covering in the aggregate more than the number of
     outstanding shares held by any Beneficial Owner are submitted, such bid
     shall be considered valid in the order of priority set forth in the Auction
     Procedures on the above issue.

(3)  A Hold or Sell Order may be placed only by a Beneficial Owner covering a
     number of shares not greater than the number of shares currently held.

(4)  Potential Beneficial Owners may make only Bids, each of which must specify
     a rate.  If more than one Bid is submitted on behalf of any Potential
     Beneficial Owner, each Bid submitted shall be a separate Bid with the rate
     specified.

(5)  Bids may contain no more than three figures to the right of the decimal
     point (.001 of 1%).  Fractions will not be accepted.

NAME OF BROKER-DEALER
                      ------------------------
Authorized Signature
                    --------------------------
<PAGE>
 
                                                                       EXHIBIT C
                                                                       ---------

                   (Note:  To be used only for transfers made
                       other than pursuant to an Auction)

                                 TRANSFER FORM
                                 -------------

     Re:  MuniHoldings California Insured Fund III, Inc.
          Auction Market Preferred Stock(R),
          Series [A][B] ("AMPS"(R))

We are (check one):

[ ]  the Existing Holder named below;

[ ]  the Broker-Dealer for such Existing Holder; or

[ ]  the Agent Member for such Existing Holder.

We hereby notify you that such Beneficial Owner has transferred ____________
shares of AMPS to __________________.



                                                -------------------------- 
                                                (Name of Existing Holder)
                                                
                                                
                                                
                                                --------------------------  
                                                (Name of Broker-Dealer)
                                                
                                                
                                                
                                                --------------------------   
                                                (Name of Agent Member)



                                                By                          
                                                  ------------------------
                                                     Printed Name:          
                                                     Title:                  
<PAGE>
 
                                                                       EXHIBIT D
                                                                       ---------

                (Note:  To be used only for failures to deliver
                       AMPS sold pursuant to an Auction)



                         NOTICE OF A FAILURE TO DELIVER
                         ------------------------------

Complete either I or II
- -----------------------

I.        We are a Broker-Dealer for ____________________ (the "Purchaser"),
          which purchased ___________ shares of AMPS, Series [A][B], of
          MuniHoldings California Insured Fund III, Inc. in the Auction held on
          ______________________ from the seller of such shares.

II.       We are a Broker-Dealer for _______________ (the "Seller"), which sold
          _______ shares of AMPS, Series [A][B], of MuniHoldings California
          Insured Fund III, Inc. in the Auction held on ______________ to the
          Purchaser of such shares.

We hereby notify you that (check one):

__________the Seller failed to deliver such shares to the Purchaser

__________the Purchaser failed to make payment to the Seller upon delivery of
such shares


                                           Name:
                                                --------------------------   
                                                (Name of Broker-Dealer)



                                           By:
                                              ----------------------------   
                                                Printed Name:
                                                Title:

<PAGE>
 
                                                                EXHIBIT 99(k)(4)

                                      LOGO

________________________________________________________________________________

            BOOK-ENTRY-ONLY AUCTION-RATE/MONEY MARKET PREFERRED/AND
                        REMARKETED PREFERRED SECURITIES
________________________________________________________________________________

                                        
                           Letter of Representations
                 [To be Completed by Issuer and Trust Company]

                      __________________________________
                               [Name of Issuer]


                      __________________________________
                            [Name of Trust Company]


Attention:  General Counsel's Office ___________

THE DEPOSITORY TRUST COMPANY                                              (Date)
55 Water Street; 49th Floor
New York, NY 10041-0099

     Re:____

 
     _____________________________________________________________________
 
     _____________________________________________________________________
                  (Issue Description, including CUSIP number)

Ladies and Gentlemen:

          This letter sets forth our understanding with respect to certain
matters relating to the above-referenced issue (the "Securities").  Trust
Company will act as transfer agent, registrar, dividend disbursing agent, and
redemption agent with respect to the Securities.  The Securities will be issued
pursuant to a prospectus, private placement memorandum, or other such document
authorizing the issuance of the Securities dated __________, 199___ (the 
Document").  

______________

                                                                 ("Underwriter")

is distributing the Securities through The Depository Trust Company ("DTC").
<PAGE>
 
     To induce DTC to accept the Securities as eligible for deposit at DTC, and
to act in accordance with its Rules with respect to the Securities, Issuer and
Trust Company make the following representations to DTC:

     1.  Prior to closing on the Securities on __________________________
199___, there shall be deposited with DTC one Security certificate registered in
the name of DTC's nominee, Cede & Co., which represents the total number of
Securities issued.  Said certificate shall remain in DTC's custody as provided
in the Document.  If, however, the aggregate principal amount of the Securities
exceeds $150 million, one certificate will be issued with respect to each $150
million of principal amount and an additional certificate will be issued with
respect to any remaining principal amount.  Each $150 million Securities
certificate shall bear the following legend:

          Unless this certificate is presented by an authorized representative
          of The Depository Trust Company, a New York corporation ("DTC"), to
          Issuer or its agent for registration of transfer, exchange, or
          payment, and any certificate issued is registered in the name of Cede
          & Co. or in such other name as is requested by an authorized
          representative of DTC (and any payment is made to Cede & Co. or to
          such other entity as is requested by an authorized representative of
          DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
          BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner
          hereof, Cede & Co., has an interest herein.

     2.  In the event of any solicitation of consents from or voting by holders
of the Securities, Issuer shall establish a record date for such purposes (with
no provision for revocation of consents or votes by subsequent holders) and
shall, to the extent possible, send notice of such record date to DTC not less
than 15 calendar days in advance of such record date.  Notices to DTC pursuant
to this Paragraph by telecopy shall be sent to DTC's Reorganization Department
at (212) 709-6896 or (212) 709-6897, and receipt of such notices shall be
confirmed by telephoning (212) 709-6870.  Notices to DTC pursuant to this
Paragraph by mail or by any other means shall be sent to DTC's Reorganization
Department as indicated in Paragraph 4.

     3.  In the event of a full or partial redemption of the outstanding
Securities, Issuer or Trust Company shall send a notice to DTC specifying:  (a)
the number of Securities to be redeemed; and (b) the date such notice is to be
mailed to Security holders or published (the "Publication Date").  Such notice
shall be sent to DTC by a secure means (e.g., legible telecopy, registered or
certified mail, overnight delivery) in a timely manner designed to assure that
such notice is in DTC's possession no later than the close of business on the
business day before or, if possible, two business days before the Publication
Date.  Issuer or Trust Company shall forward such notice either in a separate
secure transmission for each CUSIP number or in a secure transmission for
multiple CUSIP numbers (if applicable) which includes a manifest or list of each
CUSIP number submitted in that transmission.  (The party sending such notice
shall have a method to verify subsequently the use of such means and the
timeliness of such notice.  The Publication Date shall be not less than 30 days
nor more than 60 days prior to the redemption date.  Notices to DTC pursuant to
this Paragraph by telecopy shall be sent to DTC's Call Notification Department
at (516) 227-4039 or (516) 227-4190.  If the party sending the notice does not
receive a telecopy receipt from DTC confirming that the notice has been
received, such

                                       2
<PAGE>
 
party shall telephone (516) 227-4070.  Notices to DTC pursuant to this Paragraph
by mail or by any other means shall be sent to:

                                Manager; Call Notification Department
                                The Depository Trust Company
                                711 Stewart Avenue
                                Garden City, NY 11530-4719

     4.  In the event of an invitation to tender the Securities, notice by
Issuer or Trust Company to Security holders specifying the terms of the tender
and the Publication Date of such notice shall be sent to DTC by a secure means
in the manner set forth in the preceding Paragraph.  Notices to DTC pursuant to
this Paragraph and notices of other corporate actions (including mandatory
tenders, exchanges, and capital changes) by telecopy shall be sent to DTC's
Reorganization Department at (212) 709-1093 or (212) 709-1094, and receipt of
such notices shall be confirmed by telephoning (212) 709-6884.  Notices to DTC
pursuant to the above by mail or by any other means shall be sent to:

                                Manager; Reorganization Department
                                Reorganization Window
                                The Depository Trust Company
                                7 Hanover Square; 23rd Floor
                                New York, NY 10004-2695

     5.  All notices and payment advices sent to DTC shall contain the CUSIP
number of the Securities.

     6.  The Document indicates that the dividend rate for the Securities may
vary from time to time.  Absent other existing arrangements with DTC, Issuer or
Trust Company shall give DTC notice of each such change in the dividend rate, on
the same day that the new rate is determined, by telephoning the Supervisor of
DTC's Dividend Announcement Section at (212) 709-1270, or by telecopy sent to
(212) 709-1723.  Such verbal or telecopy notice shall be followed by prompt
written confirmation sent by a secure means in the manner set forth in Paragraph
3 to:

                                Manager; Announcements     
                                Dividend Department        
                                The Depository Trust Company
                                7 Hanover Square; 22nd Floor
                                New York, NY 10004-2695     

     7.  The Document indicates that each purchaser of Securities must sign a
purchaser's letter which contains provisions restricting transfer of the
Securities purchased.  Issuer and Trust Company acknowledge that as long as Cede
& Co. is the sole record owner of the Securities, Cede & Co. shall be entitled
to all voting rights applicable to the Securities and to receive the full amount
of all dividends, liquidation proceeds, and redemption proceeds payable with
respect to the Securities, even if the credits of Securities to the DTC accounts
of any DTC Participant ("Participant") result from transfers or failures to
transfer in violation of the provisions of the purchaser's letter. Issuer and
Trust Company acknowledge that DTC shall treat any Participant

                                       3
<PAGE>
 
having Securities credited to its DTC accounts as entitled to the full benefits
of ownership of such Securities. Without limiting the generality of the
preceding sentence, Issuer and Trust Company acknowledge that DTC shall treat
any Participant having Securities credited to its DTC accounts as entitled to
receive dividends, distributions, and voting rights, if any, in respect of
Securities and, subject to Paragraphs 11 and 12, to receive certificates
evidencing Securities if such certificates are to be issued in accordance with
Issuer's certificate of incorporation. (The treatment by DTC of the effects of
the crediting by it of Securities to the accounts of Participants described in
the preceding two sentences shall not affect the rights of Issuer, participants
in auctions relating to the Securities, purchasers, sellers, or holders of
Securities against any Participant.) DTC shall not have any responsibility to
ascertain whether any transfer of Securities is made in accordance with the
provisions of the purchaser's letter.

     8.  Transactions in the Securities shall be eligible for same-day funds
settlement in DTC's Same-Day Funds Settlement ("SDFS") system.

          A.  Dividend payments shall be received by Cede & Co., as nominee of
          DTC, or its registered assigns in same-day funds on each payment date
          (or the equivalent in accordance with existing arrangements between
          Issuer or Trust Company and DTC).  Such payments shall be made payable
          to the order of Cede & Co.  Absent any other existing arrangements,
          such payments shall be addressed as follows:

                    Manager; Cash Receipts
                    Dividend Department
                    The Depository Trust Company
                    7 Hanover Square; 24th Floor
                    New York, NY 10004-2695

          B.  Redemption payments shall be made in same-day funds by Trust
          Company in the manner set forth in the SDFS Paying Agent Operating
          Procedures, a copy of which previously has been furnished to Trust
          Company.

     9.  DTC may direct Issuer or Trust Company to use any other number or
address as the number or address to which notices, payments of dividends, or
redemption proceeds may be sent.

     10.  In the event of a redemption necessitating a reduction in the number
of Securities outstanding, DTC, in its discretion:  (a) may request Issuer or
Trust Company to issue and authenticate a new Security certificate; or (b) may
make an appropriate notation on the Security certificate indicating the date and
amount of such reduction in the number of Securities outstanding, except in the
case of final redemption, in which case the certificate will be presented to
Issuer or Trust Company prior to payment, if required.

     11.  In the event that Issuer determines that beneficial owners of
Securities shall be able to obtain certificated Securities, Issuer or Trust
Company shall notify DTC of the availability of certificates. In such event,
Issuer or Trust Company shall issue, transfer, and exchange certificates in
appropriate amounts, as required by DTC and others.

                                       4
<PAGE>
 
     12.  DTC may discontinue providing its services as securities depository
with respect to the Securities at any time by giving reasonable notice to Issuer
or Trust Company (at which time DTC will confirm with Issuer or Trust Company
the aggregate principal amount of Securities outstanding).  Under such
circumstances, at DTC's request Issuer and Trust Company shall cooperate fully
with DTC by taking appropriate action to make available one or more separate
certificates evidencing Securities to any DTC Participant having Securities
credited to its DTC accounts.

     13.  Issuer hereby authorizes DTC to provide to Trust Company security
position listings of Participants with respect to the Securities from time to
time at the request of Trust Company.  Issuer also authorizes DTC, in the event
of a partial redemption of Securities, to provide Trust Company, upon request,
with the names of those Participants whose positions in Securities have been
selected for redemption by DTC.  DTC will use its best efforts to notify Trust
Company of those Participants whose positions in Securities have been selected
for redemption by DTC.  Issuer authorizes and instructs Trust Company to provide
DTC with such signatures, examples of signatures, and authorizations to act as
may be deemed necessary or appropriate by DTC to permit DTC to discharge its
obligations to its Participants and appropriate regulatory authorities.  Such
requests for security position listings shall be sent to DTC's Reorganization
Department in the manner set forth in Paragraph 4.

     This authorization, unless revoked by Issuer, shall continue with respect
to the Securities while any Securities are on deposit at DTC, until and unless
Trust Company shall no longer be acting.  In such event, Issuer shall provide
DTC with similar evidence, satisfactory to DTC, of the authorization of any
successor thereto so to act.

     14.  Issuer:  (a) understands that DTC has no obligation to, and will not,
communicate to its Participants or to any person having an interest in the
Securities any information contained in the Security certificate(s); and (b)
acknowledges that neither DTC's Participants nor any person having an interest
in the Securities shall be deemed to have notice of the provisions of the
Security certificate(s) by virtue of submission of such certificate(s) to DTC.

     15.  Nothing herein shall be deemed to require Trust Company to advance
funds on behalf of Issuer.

<TABLE>
<S>                                                  <C>
Notes:                                               Very truly yours,
- ------
A. If there is a Trust Company (as defined           (Issuer)
in this Letter of Representations), Trust 
Company as well as Issuer must sign this             By:
Letter.  If there is no Trust Company, in               ----------------------------------------
signing this Letter Issuer itself                          (Authorized Officer's Signature)
undertakes to perform all of the                                                           
obligations set forth herein.                              (Trust Company)                 
B.  Schedule A contains statements that DTC                                                
believes accurately describe DTC, the                      (Authorized Officer's Signature) 
method of effecting book-entry transfers of  
securities distributed through DTC, and      
certain related matters.                     
</TABLE>

Received and Accepted:
THE DEPOSITORY TRUST COMPANY

                                       5
<PAGE>
 
                                                            SCHEDULE A
                                                            ----------

                       SAMPLE OFFERING DOCUMENT LANGUAGE
                      DESCRIBING BOOK-ENTRY-ONLY ISSUANCE
                      -----------------------------------
 (Prepared by DTC-bracketed material may be applicable only to certain issues)

     1.  The Depository Trust Company ("DTC"), New York, NY, will act as
securities depository for the securities (the "Securities").  The Securities
will be issued as fully-registered securities registered in the name of Cede &
Co. (DTC's partnership nominee).  One fully-registered Security certificate will
be issued for [each issue of] the Securities, [each] in the aggregate principal
amount of such issue, and will be deposited with DTC.  [If, however, the
aggregate principal amount of [any] issue exceeds $150 million, one certificate
will be issued, with respect to each $150 million of principal amount and an
additional certificate will be issued with respect to any remaining principal
amount of such issue.]

     2.  DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York Banking
Law, a member of the Federal Reserve System, a "clearing corporation" within the
meaning of the New York Uniform Commercial Code, and a "clearing agency"
registered pursuant to the provisions of Section 17A of the Securities Exchange
Act of 1934.  DTC holds securities that its participants ("Participants")
deposit with DTC.  DTC also facilitates the settlement among Participants of
securities transactions, such as transfers and pledges, in deposited securities
through electronic computerized book-entry changes in Participants' accounts,
thereby eliminating the need for physical movement of securities certificates.
Direct Participants include securities brokers and dealers, banks, trust
companies, clearing corporations, and certain other organizations.  DTC is owned
by a number of its Direct Participants and by the New York Stock Exchange, Inc.,
the American Stock Exchange, Inc., and the National Association of Securities
Dealers, Inc.  Access to the DTC system is also available to others such as
securities brokers and dealers, banks, and trust companies that clear through or
maintain a custodial relationship with a Direct Participant, either directly or
indirectly ("Indirect Participants").  The Rules applicable to DTC and its
Participants are on file with the Securities and Exchange Commission.

     3.  Purchases of Securities under the DTC system must be made by or through
Direct Participants, which will receive a credit for the Securities on DTC's
records.  The ownership interest of each actual purchaser of each Security
("Beneficial Owner") is in turn to be recorded on the Direct and Indirect
Participants' records.  Beneficial Owners will not receive written confirmation
from DTC of their purchase, but Beneficial Owners are expected to receive
written confirmations providing details of the transaction, as well as periodic
statements of their holdings, from the Direct or Indirect Participant through
which the Beneficial Owner entered into the transaction.  Transfers of ownership
interests in the Securities are to be accomplished by entries made on the books
of Participants acting on behalf of Beneficial Owners.  Beneficial Owners will
not receive certificates representing their ownership, interests in Securities,
except in the event that use of the book-entry system for the Securities is
discontinued.

                                       6
<PAGE>
 
     4.  To facilitate subsequent transfers, all Securities deposited by
Participants with DTC are registered in the name of DTC's partnership nominee,
Cede & Co.  The deposit of Securities with DTC and their registration in the
name of Cede & Co. effect no change in beneficial ownership.  DTC has no
knowledge of the actual Beneficial Owners of the Securities; DTC's records
reflect only the identity of the Direct Participants to whose accounts such
Securities are credited, which may or may not be the Beneficial Owners.  The
Participants will remain responsible for keeping account of their holdings on
behalf of their customers.

     5.  Conveyance of notices and other communications by DTC to Direct
Participants, by Direct Participants to Indirect Participants, and by Direct
Participants and Indirect Participants to Beneficial Owners will be governed by
arrangements among them, subject to any statutory or regulatory requirements as
may be in effect from time to time.

     [6.  Redemption notices shall be sent to Cede & Co.  If less than all of
the Securities within an issue are being redeemed, DTC's practice is to
determine by lot the amount of the interest of each Direct Participant in such
issue to be redeemed.]

     7.  Neither DTC nor Cede & Co. will consent or vote with respect to
Securities.  Under its usual procedures, DTC mails an Omnibus Proxy to the
Issuer as soon as possible after the record date.  The Omnibus Proxy assigns
Cede & Co.'s consenting or voting rights to those Direct Participants to whose
accounts the Securities are credited on the record date (identified in a listing
attached to the Omnibus Proxy).

     8.  Principal and interest payments on the Securities will be made to DTC.
DTC's practice is to credit Direct Participants' accounts on payable date in
accordance with their respective holdings shown on DTC's records unless DTC has
reason to believe that it will not receive payment on payable date.  Payments by
Participants to Beneficial Owners will be governed by standing instructions and
customary practices, as is the case with securities held for the accounts of
customers in bearer form or registered in "street name," and will be the
responsibility of such Participant and not of DTC, the Agent, or the Issuer,
subject to any statutory or regulatory requirements as may be in effect from
time to time.  Payment of principal and interest to DTC is the responsibility of
the Issuer or the Agent, disbursement of such payments to Direct Participants
shall be the responsibility of DTC, and disbursement of such payments to the
Beneficial Owners shall be the responsibility of Direct and Indirect
Participants.

     [9.  A Beneficial Owner shall give notice to elect to have its Securities
purchased or tendered, through its Participant, to the [Tender/Remarketing]
Agent, and shall effect delivery of such Securities by causing the Direct
Participant to transfer the Participant's interest in the Securities, on DTC's
records, to the [Tender/Remarketing] Agent.  The requirement for physical
delivery of Securities in connection with a demand for purchase or a mandatory
purchase will be deemed satisfied when the ownership rights in the Securities
are transferred by Direct Participants on DTC's records.]

     10.  DTC may discontinue providing its services as securities depository
with respect to the Securities at any time by giving reasonable notice to the
Issuer or the Agent.  Under such

                                       7
<PAGE>
 
circumstances, in the event that a successor securities depository is not
obtained, Security certificates are required to be printed and delivered.

     11.  The Issuer may decide to discontinue use of the system of book-entry
transfers through DTC (or a successor securities depository).  In that event,
Security certificates will be printed and delivered.

     12.  The information in this section concerning DTC and DTC's book-entry
system has been obtained from sources that the Issuer believes to be reliable,
but the Issuer takes no responsibility for the accuracy thereof.

                                       8
<PAGE>
 
                     RIDER TO THE LETTER OF REPRESENTATIONS
                                       of
                 MUNIHOLDINGS CALIFORNIA INSURED FUND III, INC.
                                      AND
                       IBJ SCHRODER BANK & TRUST COMPANY
                           Dated              , 1998


          This Rider supersedes any contradictory language set forth in the
          Letter of Representations to which it is appended.  Capitalized terms
          used and not defined herein have the meaning set forth in the Letter
          of Representations to which this Rider is appended.

          The Prospectus indicates that in the event the Issuer retroactively
          allocates any net capital gains or other income subject to regular
          Federal income tax to shares of AMPS without having given advance
          notice thereof to the Auction Agent as described in the Prospectus
          solely by reason of the fact that such allocation is made as a result
          of the redemption of all or a portion of the shares of AMPS
          outstanding or the liquidation of the Issuer (the amount of such
          allocation being referred to herein as a "Retroactive Taxable
          Allocation"), the Issuer, within 90 days (and generally within 60
          days) after the end of the Issuer's fiscal year for which a
          Retroactive Taxable Allocation is made, will provide notice thereof to
          the Auction Agent and to each holder of shares of AMPS (initially Cede
          & Co. as nominee of DTC) during such fiscal year at such holder's
          address as the same appears or last appeared on the stock books of the
          Issuer.  The Issuer, within 30 days after such notice is given to the
          Auction Agent, will pay to the Auction Agent (who then will distribute
          to such holders of AMPS), out of funds legally available therefor, an
          amount equal to the aggregate Additional Dividend with respect to all
          Retroactive Taxable Allocations made to such holders during the fiscal
          year in question.

          The Issuer will notify DTC, at least 10 Business Days prior to the
          payment date for any Additional Dividends, of (i) the record date for
          holders of shares of AMPS entitled to receive Additional Dividends,
          (ii) the amount of Additional Dividends payable on a per share basis
          to such holders and (iii) the CUSIP numbers set forth on the stock
          certificates representing such shares of AMPS.

          The Prospectus indicates that if the Issuer does not give advance
          notice of the amount of net capital gains or other income subject to
          regular Federal income tax to be included in a dividend on shares of
          AMPS in the related Auction, the Issuer may include such taxable
          income in a dividend on shares of AMPS if it increases the dividend by
          an additional amount calculated as if such income were a Retroactive
          Taxable Allocation and the additional amount were an Additional
          Dividend.  The Issuer or the Auction Agent will notify DTC, at least
          five Business

                                       9
<PAGE>
 
          Days prior to the applicable Dividend Payment Date, of the amount of
          such additional amount to be included in the dividend on a per share
          basis.

          The Prospectus indicates that in the event a Response (as defined in
          the Prospectus) indicates that it is advisable that the Issuer give a
          Notice of Special Dividend Period (as defined in the Prospectus) for
          the AMPS, the Issuer, by no later than the second Business Day prior
          to the relevant Auction Date (as defined in the Prospectus), may give
          a Notice of Special Dividend Period to the Auction Agent, DTC and each
          Broker-Dealer (as defined in the Prospectus), which notice will
          specify (i) the duration of the Special Dividend Period (as defined in
          the Prospectus), (ii) the Optional Redemption Price as specified in
          the related Response and (iii) the Specific Redemption Provisions, if
          any, as specified in the related Response.  The Issuer is required to
          give telephonic and written notice (a "Notice of Revocation") to the
          Auction Agent, each Broker-Dealer, and DTC (as described in paragraph
          6 hereof) on or prior to the Business Day prior to the relevant
          Auction Date under the circumstances specified in the Prospectus.

                                       10


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