COLONIAL CALIFORNIA INSURED MUNICIPAL FUND
N-2/A, 1999-09-27
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<PAGE>   1

 AS FILED WITH THE U.S. SECURITIES AND EXCHANGE COMMISSION ON SEPTEMBER 27, 1999


                                          SECURITIES ACT FILE NO.   333-84993
                                  INVESTMENT COMPANY ACT FILE NO.   811-09537

                     U.S. SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM N-2

                        (Check appropriate box or boxes)

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933            [X]


                    Pre-Effective Amendment No.      2             [X]
                                                -----------


                    Post-Effective Amendment No.                   [ ]
                                                -----------

                                     and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940    [X]


                    Amendment No.       2                          [X]
                                 ---------------



                   COLONIAL CALIFORNIA INSURED MUNICIPAL FUND
               (Exact Name of Registrant as Specified in Charter)

                     ONE FINANCIAL CENTER, BOSTON, MA 02111
                    (Address of Principal Executive Offices)

                                 (617) 426-3750
              (Registrant's Telephone Number, including Area Code)



<TABLE>
<CAPTION>
Name and Address of
Agent for Service                                                     Copies to
<S>                                       <C>                                     <C>
William J. Ballou, Esq.                   John M. Loder, Esq.                     Gary Schpero, Esq.
Colonial Management Associates, Inc.      Ropes & Gray                            Simpson Thacher & Bartlett
One Financial Center                      One International Place                 425 Lexington Avenue
Boston, Massachusetts 02111-2621          Boston, Massachusetts 02110-2624        New York, New York 10017-3954
</TABLE>


                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. [ ]

It is proposed that this filing will become effective (check appropriate box):
  [ ] when declared effective pursuant to Section 8(c)



        CALCULATION OF REGISTRATION FEE UNDER THE SECURITIES ACT OF 1933

<TABLE>
<CAPTION>

                                            PROPOSED MAXIMUM      PROPOSED MAXIMUM
TITLE OF SECURITIES    AMOUNT BEING         OFFERING PRICE PER    AGGREGATE OFFERING    AMOUNT OF
BEING REGISTERED       REGISTERED (1)       UNIT (1)              PRICE (1)             REGISTRATION FEE (2)
- ---------------------- -------------------- --------------------- --------------------- --------------------
<S>                       <C>                 <C>                   <C>                   <C>
Common Shares,            66,667             $15.00                 $1,000,005            $278
No Par Value
Per Share
</TABLE>

(1) Estimated solely for purposes of calculating the registration fee.

(2) Previously paid.

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.
<PAGE>   2
                  COLONIAL CALIFORNIA INSURED MUNICIPAL FUND

                              CROSS REFERENCE SHEET
                           ITEMS REQUIRED BY FORM N-2
<TABLE>
<CAPTION>
PART A
ITEM NO.            ITEM CAPTION                                                      PROSPECTUS CAPTION

<S>                 <C>                                                <C>
1.................  Outside Front Cover                                Front Cover Page
2.................  Inside Front and Outside Back Cover Page           Front and Back Cover Page
3.................  Fee Table and Synopsis                             Prospectus Summary; Summary of Fund
                                                                           Expenses
4.................  Financial Highlights                               Not Applicable
5.................  Plan of Distribution                               Front Cover Page; Prospectus Summary;
                                                                           Underwriting
6.................  Selling Shareholders                               Not Applicable
7.................  Use of Proceeds                                    Use of Proceeds; Investment Objective and
                                                                           Policies
8.................  General Description of the Registrant              Prospectus Summary; The Fund; Investment
                                                                           Objective and Policies; Use of
                                                                           Leverage and Related Risks; Additional
                                                                           Risk Considerations; How the Fund Manages
                                                                           Risk; Management of the Fund; Description
                                                                           of Shares; Certain Provisions in the
                                                                           Declaration of Trust
9.................  Management                                         Management of the Fund; Custodian,
                                                                           Transfer Agent, Dividend Disbursing Agent
                                                                           and Registrar
10 ...............  Capital Stock, Long-Term Debt,                     Net Asset Value; Distributions; Dividend
                    and Other Securities                                   Reinvestment Plan; Description of
                                                                           Shares; Repurchase of Common
                                                                           Shares; Conversion to Open-End Fund;
                                                                           Tax Matters
11 ...............  Defaults and Arrears on Senior Securities          Not Applicable
12 ...............  Legal Proceedings                                  Not Applicable
13 ...............  Table of Contents of the                           Table of Contents for the
                    Statement of Additional Information                    Statement of Additional Information

PART B                                                                 STATEMENT OF ADDITIONAL
ITEM NO.           ITEM CAPTION                                          INFORMATION CAPTION

14 ...............  Cover Page                                         Cover Page
15................  Table of Contents                                  Table of Contents
16 ...............  General Information and History                    Not Applicable
17 ...............  Investment Objective and Policies                  Investment Objectives and Policies;
                                                                           Miscellaneous Investment Practices
18 ...............  Management                                         Management of the Fund
19 ...............  Control Persons and Principal                      Management of the Fund
                         Holders of Securities
20 ...............  Investment Advisory and Other Services             Fund Charges and Expenses; Management
                                                                           of the Fund; Custodian; Independent
                                                                           Accountants
21 ...............  Brokerage Allocation and Other Practices           Fund Charges and Expenses; Portfolio
                                                                           Transactions
22 ...............  Tax Status                                         Tax Matters
23 ...............  Financial Statements                               Financial Statements

</TABLE>
<PAGE>   3

THE INFORMATION IN THIS PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED. WE MAY
NOT SELL THESE SECURITIES UNTIL THE REGISTRATION STATEMENT FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PROSPECTUS IS NOT AN OFFER
TO SELL THESE SECURITIES AND IS NOT SOLICITING AN OFFER TO BUY THESE SECURITIES
IN ANY STATE WHERE THE OFFER OR SALE IS NOT PERMITTED.


                SUBJECT TO COMPLETION, DATED SEPTEMBER 27, 1999


PROSPECTUS
                                            SHARES

                   COLONIAL CALIFORNIA INSURED MUNICIPAL FUND

                                 COMMON SHARES

                                $15.00 PER SHARE

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


     Investment Objective.  The Fund is a newly organized, closed-end,
nondiversified management investment company. The Fund's investment objective is
to provide current income generally exempt from regular federal income tax and
California state personal income tax.



     Portfolio Contents.  The Fund will invest its assets in a nondiversified
portfolio of bonds and notes that generally are issued by or on behalf of
California state and local governmental units whose interest is, in the opinion
of issuer's counsel (or on the basis of other reliable authority), exempt from
regular federal income tax and California state personal income tax. At least
80% of the Fund's total assets will normally be invested in municipal bonds
rated at least investment grade at the time of investment (which are those rated
Baa or higher by Moody's or BBB or higher by Standard & Poor's or comparably
rated by any other nationally recognized statistical rating agency), or bonds
that are unrated but judged to be of comparable quality by the Fund's investment
advisor. At least 65% of the Fund's total assets will normally be invested in
municipal bonds that are covered by insurance guaranteeing the timely payment of
principal at maturity and interest. The Fund may invest up to 20% of its total
assets in municipal bonds that, at the time of investment, are rated Ba or B by
Moody's or BB or B by Standard & Poor's or comparably rated by any other
nationally recognized statistical rating agency, or, if not rated, deemed by the
Fund's investment advisor to be of comparable quality. Bonds rated Ba/BB and
below are regarded as having predominantly

                                                   (continued on following page)


     THESE SECURITIES INVOLVE RISKS. SEE "ADDITIONAL RISK CONSIDERATIONS"
BEGINNING ON PAGE 30.



     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved these securities or determined if this
prospectus is truthful or complete. Any representation to the contrary is a
criminal offense.


<TABLE>
<CAPTION>
                                                             TOTAL ASSUMING          TOTAL ASSUMING
                                                             NO EXERCISE OF         FULL EXERCISE OF
                                             PER SHARE    OVERALLOTMENT OPTION    OVERALLOTMENT OPTION
                                             ---------    --------------------    --------------------
<S>                                          <C>          <C>                     <C>
Public Offering Price                         $15.000          $                       $
Sales Load                                    $ 0.675          $                       $
Proceeds to the Fund                          $14.325          $                       $
</TABLE>


     The underwriters are offering the common shares subject to various
conditions. The underwriters may purchase up to an additional           Common
Shares at the initial public offering price, less the sales load, within 45 days
from the date of this prospectus to cover overallotments. The underwriters
expect to deliver the common shares to purchasers on or about           , 1999.

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


SALOMON SMITH BARNEY


             A.G. EDWARDS & SONS, INC.


                           PAINEWEBBER INCORPORATED


                                       SUTRO & CO. INCORPORATED


                                                 WEDBUSH MORGAN SECURITIES


          , 1999

<PAGE>   4

(continued from previous page)


speculative characteristics with respect to capacity to pay interest and repay
principal, and are commonly referred to as junk bonds. See "Investment Objective
and Policies." The Fund's investments in these lower quality bonds and notes
involve special risks. The Fund's net asset value and distribution rate will
vary and may be affected by several factors, including changes in interest rates
and the credit quality of California municipal issuers. Fluctuations in net
asset value may be magnified as a result of the Fund's use of leverage, which
may be considered a speculative investment technique. An investment in the Fund
is not appropriate for all investors. The Fund is designed for individual
investors who are residents of California for tax purposes. The Fund cannot
assure you that it will achieve its investment objective. See "Investment
Objective and Policies." A substantial portion of the Fund's income may be
subject to the federal alternative minimum tax. In addition, distributions of
net capital gain and taxable income will be subject to tax. See "Tax Matters."



     No Prior History.  Because the Fund is newly organized, its common shares
have no history of public trading. Shares of closed-end investment companies
frequently trade at a discount from their net asset value. This risk may be
greater for investors expecting to sell their shares in a relatively short
period after completion of this initial public offering. We have applied for
listing of the common shares on the New York Stock Exchange, subject to notice
of issuance, under the trading or "ticker" symbol "CCA".



     Municipal Preferred Shares.  In a separate offering, the Fund intends to
offer preferred shares, called "Municipal Preferred Shares," for which potential
investors in that offering will receive a different prospectus. The Municipal
Preferred Shares are not being offered in this prospectus. The Fund expects that
the Municipal Preferred Shares will represent about 38% of the Fund's capital.
The issuance of Municipal Preferred Shares will leverage your common shares,
meaning that the issuance of the Municipal Preferred Shares may cause you to
receive a larger return or loss on your common shares than you would have
received without the issuance of the Municipal Preferred Shares. Leverage
involves special risks, but also affords an opportunity for greater return.
There is no assurance that the Fund's leveraging strategy will succeed. See "Use
of Leverage and Related Risks" and "Description of Shares."


     The underwriters named in this prospectus may purchase up to
additional common shares from the Fund under certain circumstances.


     Colonial Management Associates, Inc., the Fund's investment advisor, has
agreed to pay (i) all organizational expenses and (ii) offering costs (other
than sales loads) that exceed $0.03 per common share.



     This prospectus contains important information about the Fund. You should
read this prospectus before deciding whether to invest and you should retain it
for future reference. A Statement of Additional Information, dated           ,
1999, containing additional information about the Fund, has been filed with the
Securities and Exchange Commission and is hereby incorporated by reference in
its entirety into this prospectus. You can review the table of contents of the
Statement of Additional Information on page 50 of this prospectus. You may
request a free copy of the Statement of Additional Information by calling
1-800-426-3750. You may also obtain the Statement of Additional Information on
the Securities and Exchange Commission web site (http://www.sec.gov).


     The Fund's common shares do not represent a deposit or obligation of, and
are not guaranteed or endorsed by, any bank or other insured depository
institution, and are not federally insured by the Federal Deposit Insurance
Corporation, the Federal Reserve Board or any other government agency.

     YOU SHOULD RELY ONLY ON THE INFORMATION CONTAINED IN THIS PROSPECTUS.
NEITHER THE FUND NOR THE UNDERWRITERS HAVE AUTHORIZED ANY OTHER PERSON TO
PROVIDE YOU WITH DIFFERENT INFORMATION. IF ANYONE PROVIDES YOU WITH DIFFERENT OR
INCONSISTENT INFORMATION, YOU SHOULD NOT RELY ON IT. NEITHER THE FUND NOR THE
UNDERWRITERS ARE MAKING AN OFFER TO SELL THESE SECURITIES IN ANY JURISDICTION
WHERE THE OFFER OR SALE IS NOT PERMITTED. YOU SHOULD ASSUME THAT THE INFORMATION
APPEARING IN THIS PROSPECTUS IS ACCURATE AS OF THE DATE ON THE FRONT COVER ONLY.

                                        2
<PAGE>   5


                               TABLE OF CONTENTS



<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
Prospectus Summary..........................................    4
Summary of Fund Expenses....................................   13
The Fund....................................................   14
Use of Proceeds.............................................   14
Investment Objective and Policies...........................   14
Use of Leverage and Related Risks...........................   27
Additional Risk Considerations..............................   30
How the Fund Manages Risk...................................   35
Management of the Fund......................................   37
Net Asset Value.............................................   38
Distributions...............................................   39
Dividend Reinvestment Plan..................................   39
Description of Shares.......................................   41
Certain Provisions in the Declaration of Trust..............   43
Repurchase of Common Shares; Conversion to Open-End Fund....   43
Tax Matters.................................................   44
Underwriting................................................   47
Custodian, Dividend Disbursing Agent, Transfer Agent and
  Registrar.................................................   49
Legal Opinions..............................................   49
Table of Contents for the Statement of Additional
  Information...............................................   50
</TABLE>


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


     Until             , 1999 (25 days after the date of this prospectus), all
dealers that buy, sell or trade the Common Shares, whether or not participating
in this offering, may be required to deliver a prospectus. This is in addition
to the dealers' obligation to deliver a prospectus when acting as underwriters
and with respect to their unsold allotments or subscriptions.


                                        3
<PAGE>   6


                               PROSPECTUS SUMMARY



     This is only a summary. You should review the more detailed information
contained in this prospectus and in the Statement of Additional Information.



THE FUND.......................   Colonial California Insured Municipal Fund is
                                  a newly organized, closed-end, nondiversified
                                  management investment company. Throughout this
                                  prospectus, we refer to Colonial California
                                  Insured Municipal Fund simply as the "Fund" or
                                  as "we," "us" or "our." See "The Fund."



THE OFFERING...................   The Fund is offering        common shares of
                                  beneficial interest at $15.00 per share
                                  through a group of underwriters (the
                                  "Underwriters") led by Salomon Smith Barney
                                  Inc. The common shares of beneficial interest
                                  are called "Common Shares" in the rest of this
                                  prospectus. You must purchase at least 100
                                  Common Shares. The Fund has given the
                                  Underwriters an option to purchase up to
                                                 additional Common Shares to
                                  cover orders in excess of
                                  Common Shares. See "Underwriting."



INVESTMENT OBJECTIVE...........   The Fund's investment objective is to provide
                                  current income generally exempt from regular
                                  federal income tax and California state
                                  personal income tax. The Fund will invest its
                                  assets in a nondiversified portfolio of
                                  municipal bonds issued by or on behalf of the
                                  State of California or its political
                                  subdivisions, agencies, authorities or
                                  instrumentalities. Under normal circumstances,
                                  the Fund will invest substantially all (at
                                  least 80%) of its total assets in debt
                                  securities, the interest on which is, in the
                                  opinion of issuer's counsel (or on the basis
                                  of other reliable authority), exempt from
                                  regular federal income tax and California
                                  state personal income tax ("California
                                  Municipal Obligations"). At least 65% of the
                                  Fund's total assets will normally be invested
                                  in California Municipal Obligations that are
                                  covered by insurance guaranteeing the timely
                                  payment of principal at maturity and interest.
                                  Each insured California Municipal Obligation
                                  in the Fund's portfolio will be covered by
                                  specific insurance (either original issue
                                  insurance or secondary market insurance) or
                                  portfolio insurance purchased by the Fund.



                                  At least 80% of the Fund's total assets will
                                  normally be invested in California Municipal
                                  Obligations rated at least investment grade at
                                  the time of investment (which are those rated
                                  Baa or higher by Moody's Investors Service,
                                  Inc. ("Moody's") or BBB or higher by Standard
                                  & Poor's Ratings Services ("Standard &
                                  Poor's") or comparably rated by any other
                                  nationally recognized statistical rating
                                  organization ("Rating Agency")), or, if
                                  unrated, determined by the Advisor to be of at
                                  least investment grade quality. The Fund may
                                  invest up to 20% of its total assets in
                                  California Municipal Obligations rated Ba or B
                                  by Moody's


                                        4
<PAGE>   7


                                  or BB or B by Standard & Poor's or comparably
                                  rated by another Rating Agency and unrated
                                  municipal bonds considered to be of comparable
                                  quality by the Advisor. The Fund may not
                                  invest in bonds rated below B by Moody's or
                                  Standard & Poor's or comparably rated by
                                  another Rating Agency. Bonds rated Ba/BB and
                                  below are regarded as having predominantly
                                  speculative characteristics with respect to
                                  capacity to pay interest and repay principal,
                                  and are commonly referred to as "junk bonds."
                                  These lower-rated securities involve special
                                  risks, including greater sensitivity to a
                                  general economic downturn and less secondary
                                  market trading. Under normal conditions, the
                                  Fund will invest primarily in long-term
                                  California Municipal Obligations (i.e., over
                                  10 years). The Fund may, however, invest in
                                  California Municipal Obligations without
                                  regard to maturity or duration. The Fund may
                                  also purchase and sell financial futures and
                                  tax-exempt bond index futures contracts
                                  ("index futures") to hedge against changes
                                  caused by changing interest rates or changes
                                  in the market value of Municipal Obligations
                                  that are in its portfolio or that it intends
                                  to acquire. The Fund may also attempt to hedge
                                  by purchasing and writing put and call options
                                  on financial futures, tax-exempt bond indices
                                  and index futures. See "Investment Objective
                                  and Policies -- Hedging Activities." Some of
                                  the securities in which the Fund invests may
                                  include "zero-coupon" bonds, whose values are
                                  subject to greater fluctuation in response to
                                  changes in market interest rates than bonds
                                  that pay interest currently. Until the Fund is
                                  fully invested (approximately two to three
                                  months after the completion of the offering),
                                  the Fund may invest up to 20% of its total
                                  assets in inverse floating rate municipal
                                  bonds ("inverse floaters"). An investment in
                                  the Fund is not appropriate for all investors.
                                  The Fund cannot assure you that it will attain
                                  its investment objective. See "Investment
                                  Objective and Policies."



SPECIAL CONSIDERATIONS.........   The Fund expects that a portion of its
                                  investments will pay interest that is taxable
                                  under the federal alternative minimum tax. If
                                  you are, or as a result of investment in the
                                  Fund would become, subject to the federal
                                  alternative minimum tax, the Fund may not be a
                                  suitable investment for you. In addition,
                                  distributions of capital gain and taxable
                                  income will be subject to tax. See "Tax
                                  Matters."



PROPOSED OFFERING OF MUNICIPAL
  PREFERRED SHARES.............   Subject to market conditions, approximately
                                  one to three months after completion of this
                                  offering, the Fund intends to offer preferred
                                  shares of beneficial interest ("Municipal
                                  Preferred Shares") representing approximately
                                  38% of the Fund's capital after their
                                  issuance. The issuance of Municipal Preferred
                                  Shares will leverage your investment in the
                                  Common Shares. Leverage involves special
                                  risks. There is no assurance that the

                                        5
<PAGE>   8


                                  Fund's leveraging strategy will be successful.
                                  The money the Fund obtains by selling the
                                  Municipal Preferred Shares will be invested in
                                  long-term municipal bonds which will generally
                                  pay fixed rates of interest over the life of
                                  the bond. The Municipal Preferred Shares will
                                  pay dividends based on shorter-term rates,
                                  which will be reset frequently. So long as the
                                  rate of return, net of applicable Fund
                                  expenses, on the long-term bonds purchased by
                                  the Fund exceeds Municipal Preferred Share
                                  dividend rates as reset periodically, the
                                  investment of the proceeds of the Municipal
                                  Preferred Shares will generate more income
                                  than will be needed to pay dividends on the
                                  Municipal Preferred Shares. If so, the excess
                                  will be used to pay higher dividends to
                                  holders of Common Shares ("Common
                                  Shareholders"). However, the Fund cannot
                                  assure you that the issuance of Municipal
                                  Preferred Shares will result in a higher yield
                                  on your Common Shares. Once Municipal
                                  Preferred Shares are issued, the net asset
                                  value and market price of the Common Shares
                                  and the yield to Common Shareholders will be
                                  more volatile. See "Use of Leverage and
                                  Related Risks" and "Description of Shares --
                                  Municipal Preferred Shares."



INVESTMENT ADVISOR.............   Colonial Management Associates, Inc. (the
                                  "Advisor") will be the Fund's investment
                                  advisor. The Advisor will receive an annual
                                  fee, payable monthly, in a maximum amount
                                  equal to 0.65% of the Fund's average weekly
                                  total net assets (including assets
                                  attributable to any Municipal Preferred Shares
                                  that may be outstanding). The Advisor has
                                  agreed to waive the Fund's fees and expenses
                                  in the amount of 0.30% of the Fund's average
                                  weekly total net assets for the first five
                                  years of the Fund's operations (through
                                  November 30, 2004), and in a declining amount
                                  for an additional five years (through November
                                  30, 2009). The Advisor is a wholly-owned
                                  subsidiary of Liberty Funds Group LLC, which
                                  is an indirect majority-owned subsidiary of
                                  Liberty Mutual Insurance Company. See
                                  "Management of the Fund."


DISTRIBUTIONS..................   The Fund's policy will be to make monthly
                                  distributions to Common Shareholders.
                                  Distributions to Common Shareholders cannot be
                                  assured, and the amount of each monthly
                                  distribution will vary. The initial
                                  distribution to Common Shareholders is
                                  expected to be paid approximately 60 days
                                  after the completion of this offering. See
                                  "Distributions," "Dividend Reinvestment Plan"
                                  and "Use of Proceeds."


DIVIDEND REINVESTMENT PLAN.....   The Fund has established a Dividend
                                  Reinvestment Plan (the "Plan"). Under the
                                  Plan, all distributions will be automatically
                                  reinvested in additional Common Shares, unless
                                  the Common Shareholder elects to receive cash.
                                  Common Shares issued under the Plan will
                                  either be purchased in the open market or, if


                                        6
<PAGE>   9

                                  the Common Shares are trading at or above
                                  their net asset value, newly issued by the
                                  Fund. Common Shareholders who intend to hold
                                  their Common Shares through a broker or
                                  nominee should contact their broker or nominee
                                  to determine whether or how they may
                                  participate in the Plan. See "Dividend
                                  Reinvestment Plan."


LISTING........................   We have applied for listing of the Common
                                  Shares on the New York Stock Exchange under
                                  the trading or "ticker" symbol of "CCA". See
                                  "Description of Shares -- Common Shares."



CUSTODIAN, DIVIDEND DISBURSING
AGENT, TRANSFER AGENT AND
  REGISTRAR....................   The Chase Manhattan Bank will serve as
                                  custodian of the Fund's assets. EquiServe will
                                  serve as the Fund's dividend disbursing agent,
                                  transfer agent and registrar. See "Custodian,
                                  Dividend Disbursing Agent, Transfer Agent and
                                  Registrar."



MARKET PRICE OF SHARES.........   Shares of closed-end investment companies
                                  frequently trade at prices lower than their
                                  net asset value. Shares of closed-end
                                  investment companies like the Fund that invest
                                  predominantly in municipal bonds have
                                  sometimes traded at prices higher than net
                                  asset value and at other times have traded at
                                  prices lower than net asset value. The Fund
                                  cannot assure you that the Common Shares will
                                  trade at a price higher than net asset value
                                  in the future. Net asset value will be reduced
                                  immediately following the offering by the
                                  sales load and the amount of the organization
                                  and offering expenses paid by the Fund. See
                                  "Use of Proceeds." In addition to net asset
                                  value, market price may be affected by such
                                  factors as dividend levels (which are in turn
                                  affected by expenses), call protection,
                                  dividend stability, portfolio credit quality
                                  and liquidity, and market supply and demand.
                                  See "Use of Leverage and Related Risks,"
                                  "Additional Risk Considerations," "Description
                                  of Shares," "Repurchase of Fund Shares;
                                  Conversion to Open-End Fund" and the Statement
                                  of Additional Information under "Repurchase of
                                  Fund Shares; Conversion to Open-End Fund." The
                                  Common Shares are designed primarily for
                                  long-term investors, and you should not view
                                  the Fund as a vehicle for trading purposes.


SPECIAL RISK CONSIDERATIONS....   NO OPERATING HISTORY.  The Fund is a newly
                                  organized closed-end investment company with
                                  no history of operations.


                                  INTEREST RATE AND MARKET RISK.  When market
                                  interest rates fall, bond prices generally
                                  rise, and vice versa. Interest rate risk is
                                  the risk that the municipal bonds in the
                                  Fund's portfolio will decline in value because
                                  of increases in market interest rates. The
                                  prices of longer-term bonds fluctuate more
                                  than prices of shorter-term bonds as interest
                                  rates change. Conversely, the values of
                                  lower-rated and comparable unrated securities
                                  are less likely than those of investment grade
                                  or comparable unrated


                                        7
<PAGE>   10


                                  debt securities to fluctuate inversely with
                                  changes in interest rates. Because the Fund
                                  will invest primarily in long-term bonds
                                  (i.e., over 10 years), the Common Share net
                                  asset value and market price per share will
                                  fluctuate more in response to changes in
                                  market interest rates than if the Fund
                                  invested primarily in shorter-term bonds.
                                  Market risk is often greater among certain
                                  types of debt securities, such as zero-coupon
                                  bonds, which do not make regular interest
                                  payments. As interest rates change, these
                                  bonds often fluctuate in price more than bonds
                                  that make regular interest payments. Because
                                  the Fund may invest in these types of debt
                                  securities, it may be subject to greater
                                  market risk than a fund that invests only in
                                  current interest paying securities. The Fund's
                                  use of leverage, as described below, will tend
                                  to increase Common Share interest rate risk.



                                  Although insurance on the Municipal
                                  Obligations will reduce the credit risk to
                                  which the Fund is subject by guaranteeing the
                                  timely payment of principal at maturity and
                                  interest, it will not protect against
                                  fluctuations in the value of the Municipal
                                  Obligations held by the Fund or the value of
                                  the Fund's shares caused by changes in
                                  interest rates or other factors.



                                  LOWER-RATED SECURITIES.  The Fund may invest
                                  in municipal bonds rated Ba or B by Moody's or
                                  BB or B by Standard & Poor's or comparably
                                  rated by another Rating Agency or unrated but
                                  judged by the Advisor to be of comparable
                                  quality. These bonds generally involve greater
                                  risk of nonpayment of principal and interest
                                  than securities in higher rating categories.
                                  The possibility of defaults by or bankruptcies
                                  of issuers of these securities causes, in
                                  part, this principal and interest risk and may
                                  result in nonpayment of principal or interest
                                  or restructuring of the debt obligation and,
                                  possibly, a reduction in the Fund's net asset
                                  value. Municipal bonds rated Ba/BB or below
                                  are regarded as predominantly speculative in
                                  character. While such securities may have some
                                  quality and protective characteristics, large
                                  uncertainties or major risk exposures to
                                  adverse conditions are expected to outweigh
                                  such characteristics. With respect to
                                  lower-rated or unrated tax-exempt securities,
                                  the Fund may rely more on the judgment,
                                  analysis and experience of the Advisor than it
                                  will with respect to investment grade
                                  securities.



                                  In evaluating the creditworthiness of a
                                  security, whether rated or unrated, the
                                  Advisor may consider, among other things, the
                                  following factors:


                                       - the issuer's financial resources;

                                       - the issuer's sensitivity to economic
                                         conditions and trends;

                                        8
<PAGE>   11

                                       - any operating history of and the
                                         community support for the facility, if
                                         any, financed by the issue;

                                       - the ability of the issuer's management;
                                         and

                                       - regulatory matters.


                                  INCOME RISK.  The income investors receive
                                  from the Fund is based primarily on the
                                  interest it earns from its investments, which
                                  can vary widely over the short and long-term.
                                  If interest rates drop, investors' income from
                                  the Fund could drop over time as well if the
                                  Fund purchases securities paying lower rates
                                  of interest. This risk is magnified when
                                  prevailing short-term interest rates increase
                                  or when the Fund holds residual interest
                                  municipal bonds.


                                  CALL RISK.  If interest rates fall, it is
                                  possible that issuers of callable bonds with
                                  high interest coupons will "call" (or prepay)
                                  their bonds before their maturity date. If a
                                  call were exercised by the issuer during a
                                  period of declining interest rates, the Fund
                                  is likely to replace the called security with
                                  a lower yielding security. If that were to
                                  happen, it would decrease the Fund's
                                  dividends.


                                  CREDIT RISK.  Credit risk is the risk that one
                                  or more municipal bonds in the Fund's
                                  portfolio will decline in price, or fail to
                                  pay interest or principal when due, because
                                  the issuer of the bond experiences a decline
                                  in its financial status. The Fund expects to
                                  invest in lower rated or unrated municipal
                                  bonds. The prices of these lower rated bonds
                                  are more sensitive to negative developments,
                                  such as a decline in the issuer's revenues or
                                  a general economic downturn, than are the
                                  prices of higher-rated securities.


                                  LIQUIDITY RISK.  The Fund may invest in
                                  securities for which there is no readily
                                  available trading market or which are
                                  otherwise illiquid. The Fund may not be able
                                  to readily dispose of such securities at
                                  prices that approximate those at which the
                                  Fund could sell them if they were more widely
                                  traded and, as a result of such illiquidity,
                                  the Fund may have to sell other investments or
                                  engage in borrowing transactions if necessary
                                  to raise cash to meet its obligations. In
                                  addition, this limited liquidity could affect
                                  the market price of the securities, thereby
                                  adversely affecting the Fund's net asset value
                                  and ability to make dividend distributions.


                                  LEVERAGE RISK.  The proposed use of leverage
                                  through a future issuance of preferred shares
                                  by the Fund could create an opportunity for
                                  increased net income, but could also create
                                  special risks. The Fund intends to use
                                  leverage to provide the holders of Common
                                  Shares with a potentially higher return, but


                                        9
<PAGE>   12


                                  its leveraging strategy may not be successful.
                                  Leverage creates risks for holders of Common
                                  Shares, including the likelihood of greater
                                  volatility of the net asset value and market
                                  price of the Common Shares.



                                  The use of leverage also entails the risk that
                                  fluctuations in dividend rates on any
                                  preferred shares may affect the return to
                                  Common Shareholders. The Fund anticipates that
                                  preferred share dividends will be based on the
                                  yields of short-term Municipal Obligations,
                                  while the proceeds of any preferred share
                                  offering will be invested in longer-term
                                  Municipal Obligations, which typically have
                                  higher yields. If the income derived from the
                                  purchased securities exceeds the cost of
                                  leverage (i.e., the interest paid on the
                                  Municipal Preferred Shares), the Fund's return
                                  would be greater than if leverage had not been
                                  used. Conversely, if the income from the
                                  purchased securities is not sufficient to
                                  cover the cost of leverage, the return to the
                                  Fund would be less than if leverage had not
                                  been used. A decrease in the Fund's returns
                                  would reduce the amounts available for
                                  distribution to Common Shareholders as
                                  dividends and other distributions. The Advisor
                                  in its best judgment may determine to maintain
                                  the Fund's leveraged position, even if the
                                  Fund's distributions to Common Shareholders
                                  are reduced, if it deems such action to be
                                  appropriate under the circumstances.



                                  Under current federal income tax law, the Fund
                                  is required to allocate a portion of any
                                  capital gains or other taxable income to
                                  holders of preferred shares. The Fund intends
                                  to pay to any preferred shareholders
                                  additional dividends intended to compensate
                                  them for taxes payable on any capital gains or
                                  other taxable income allocated to the
                                  preferred shares. These additional dividends
                                  will reduce the amount available for
                                  distribution to the Common Shareholders. Also,
                                  as discussed under "Management of the Fund,"
                                  the fee paid to the Advisor will be calculated
                                  on the basis of the Fund's average daily net
                                  assets, including proceeds from the issuance
                                  of preferred shares. Therefore, these fees
                                  will be higher when leverage is utilized. See
                                  "Use of Leverage and Related Risks."



                                  The Fund currently intends to seek an
                                  investment grade rating on any preferred
                                  shares it may issue from one or more Rating
                                  Agencies. The Fund may be subject to
                                  investment restrictions of one or more Rating
                                  Agencies as a result. These restrictions may
                                  impose asset coverage or portfolio composition
                                  requirements that are more stringent than
                                  those imposed on the Fund by the Investment
                                  Company Act of 1940 (the "Investment Company
                                  Act" or "1940 Act"). The Advisor does not
                                  anticipate that these covenants or guidelines
                                  will impede it in managing the Fund's
                                  portfolio in accordance with the Fund's
                                  investment


                                       10
<PAGE>   13


                                  objective and policies. See "Description of
                                  Shares -- Municipal Preferred Shares."



                                  HEDGING AND OTHER INVESTMENTS.  The Fund may
                                  attempt to hedge against changes in interest
                                  rates by engaging in transactions involving
                                  interest rate futures contracts, or "financial
                                  futures," index futures and options on
                                  financial futures, tax-exempt indices and
                                  index futures. The costs of and possible
                                  losses incurred from these transactions may
                                  reduce the Fund's current return. There can be
                                  no assurance that the Fund will engage in
                                  hedging transactions or that suitable hedging
                                  transactions will be available or, if
                                  available, effective. See "Investment
                                  Objective and Policies -- Hedging Activities."



                                  The Fund's use of residual interest municipal
                                  bonds, or "inverse floaters," exposes the Fund
                                  to special risks and may amplify the effects
                                  of leverage. For example, during periods of
                                  rising short-term interest rates, the Fund's
                                  investment in inverse floaters may decrease
                                  the Fund's income and distributions to Common
                                  Shareholders. In addition, such transactions
                                  may result in the Fund earning taxable income
                                  or gains. The Fund does not, however, expect
                                  to invest in inverse floaters once the Fund is
                                  fully invested (approximately two to three
                                  months after completion of the offering). See
                                  "Investment Objective and Policies."


                                  MUNICIPAL BOND MARKET RISK.  The amount of
                                  public information available about the
                                  municipal bonds in the Fund's portfolio is
                                  generally less than that for corporate
                                  equities or bonds, and the investment
                                  performance of the Fund may therefore be more
                                  dependent on the analytical abilities of the
                                  Advisor than would be a stock fund or taxable
                                  bond fund. The secondary market for municipal
                                  bonds, particularly the below investment grade
                                  bonds in which the Fund may invest, also tends
                                  to be less well-developed or liquid than many
                                  other securities markets, which may adversely
                                  affect the Fund's ability to sell its bonds at
                                  attractive prices.


                                  PORTFOLIO INSURANCE RESTRICTIONS.  The Fund
                                  may be subject to certain restrictions on
                                  investments imposed by guidelines of one or
                                  more insurance companies which may issue
                                  portfolio insurance to the Fund. It is not
                                  anticipated that these guidelines will impede
                                  the Advisor from managing the Fund's portfolio
                                  in accordance with the Fund's investment
                                  objective and policies.



                                  CONCENTRATION IN CALIFORNIA ISSUERS.  The
                                  Fund's policy of investing primarily in
                                  California Municipal Obligations makes the
                                  Fund more susceptible to adverse economic,
                                  political or regulatory occurrences affecting
                                  such issuers. See "Additional Risk
                                  Considerations -- Certain Risks Associated
                                  with Investments in California Municipal
                                  Obligations" in this prospectus


                                       11
<PAGE>   14


                                  and "Appendix B -- Special Considerations
                                  Relating to California" in the Statement of
                                  Additional Information.



                                  NONDIVERSIFICATION.  The Fund has registered
                                  as a "nondiversified" investment company under
                                  the 1940 Act. This means that, as limited by
                                  federal income tax considerations, the Fund,
                                  with respect to up to 50% of its total assets,
                                  will be able to invest more than 5% (but not
                                  more than 25%) of the value of its total
                                  assets in the obligations of any single
                                  issuer. To the extent the Fund invests a
                                  relatively high percentage of its assets in
                                  obligations of a limited number of issuers,
                                  the Fund may be more susceptible than a more
                                  widely diversified investment company to any
                                  single economic, political or regulatory
                                  occurrence.



                                  ALTERNATIVE MINIMUM TAX AND OTHER TAX
                                  CONSIDERATIONS.  Interest on certain "private
                                  activity" municipal obligations is treated as
                                  a tax preference item for purposes of the
                                  federal alternative minimum tax ("AMT"). In
                                  addition, for corporations, interest on all
                                  tax-exempt obligations is taken into account
                                  in the computation of income subject to the
                                  federal AMT. There is no specific limitation
                                  on the amount of the Fund's assets that may be
                                  invested in municipal obligations that pay
                                  interest that is treated as a tax preference
                                  item. Accordingly, an investment in the Fund
                                  may not be appropriate for investors who are
                                  already subject to the federal AMT or who
                                  would become subject thereto as a result of
                                  owning Common Shares. Moreover, distributions
                                  of any taxable net investment income and net
                                  short-term capital gain are taxable as
                                  ordinary income and capital gain distributions
                                  will be taxable as long-term capital gain. See
                                  "Distributions" and "Tax Matters."


                                  ANTI-TAKEOVER PROVISIONS.  The Agreement and
                                  Declaration of Trust of the Fund (the
                                  "Declaration of Trust") includes provisions
                                  that could limit the ability of other entities
                                  or persons to acquire control of the Fund or
                                  convert the Fund to open-end status. These
                                  provisions of the Declaration of Trust could
                                  have the effect of depriving the Common
                                  Shareholders of opportunities to sell their
                                  Common Shares at a premium over their then
                                  current market price.

                                       12
<PAGE>   15


                            SUMMARY OF FUND EXPENSES



     The following table assumes the issuance of Municipal Preferred Shares in
an amount equal to 38% of the Fund's capital (after their issuance), and shows
Fund expenses both as a percentage of net assets attributable to Common Shares
and as a percentage of total net assets.



<TABLE>
<CAPTION>
                                                              PERCENTAGE
                                                               OF TOTAL
                                                              NET ASSETS
                                                              ----------
<S>                                                           <C>
Shareholder Transaction Expenses
  Sales Load (as a percentage of offering price)............     4.50%
Dividend Reinvestment Plan Fees.............................     None
</TABLE>



<TABLE>
<CAPTION>
                                                                   PERCENTAGE OF         PERCENTAGE
                                                              NET ASSETS ATTRIBUTABLE     OF TOTAL
                                                                 TO COMMON SHARES        NET ASSETS
                                                              -----------------------    ----------
<S>                                                           <C>                        <C>
Annual Expenses
  Management Fees...........................................            1.05%               0.65%
  Fee and Expense Waiver (Years 1-5)........................           (0.48)%             (0.30)%*
                                                                       -----                ----
Net Management Fees.........................................            0.57%               0.35%*
Other Expenses..............................................            0.32%               0.20%
                                                                       =====                ====
Total Net Annual Expenses...................................            0.89%*              0.55%*
                                                                       =====                ====
</TABLE>


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

* The Advisor has agreed to waive the Fund's fees and expenses in the following
  amounts, expressed as a percentage of average weekly net assets: 0.30% for the
  first 5 years of the Fund's operations, 0.25% in year 6, 0.20% in year 7,
  0.15% in year 8, 0.10% in year 9 and 0.05% in year 10. Without the waiver,
  "Total Net Annual Expenses" would be estimated to be 0.85% of average weekly
  total net assets and 1.37% of average weekly net assets attributable to Common
  Shares. The Advisor has agreed to pay (i) all organizational expenses and (ii)
  offering costs (other than sales loads) that exceed $0.03 per Common Share
  (0.2% of offering price).


     The purpose of the table above is to help you understand all fees and
expenses that you, as a Common Shareholder, would bear directly or indirectly.
The expenses shown in the table are based on estimated amounts for the Fund's
first year of operations and assume that the Fund issues -- Common Shares. See
"Management of the Fund" and "Dividend Reinvestment Plan."


     The following example illustrates the expenses (including the sales load of
$45) that you would pay on a $1,000 investment in Common Shares, assuming (1)
total net annual expenses of 0.55% of total net assets and 0.89% of net assets
attributable to Common Shares in years 1 through 5, increasing to 0.85% and
1.37%, respectively, in year 10 and (2) a 5% annual return: (l)



Expenses Based on a Percentage Of



<TABLE>
<CAPTION>
                                                      1 YEAR    3 YEARS    5 YEARS    10 YEARS(2)
                                                      ------    -------    -------    -----------
<S>                                                   <C>       <C>        <C>        <C>
Total Net Assets....................................   $51        $65       $ 80         $132
Net Assets Attributable to Common Shares............   $61        $94       $129         $229
</TABLE>


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

(1) The example should not be considered a representation of future expenses.
    The example assumes that the estimated Other Expenses set forth in the
    Annual Expenses table are accurate, that the waiver of fees and expenses
    decrease as described in note 2 below and that all dividends and
    distributions are reinvested at net asset value. Actual expenses may be
    greater or less than those assumed. Moreover, the Fund's actual rate of
    return may be greater or less than the hypothetical 5% return shown in the
    example.



(2) Assumes waiver of fees and expenses of 0.25% of average weekly net assets in
    year 6, 0.20% in year 7, 0.15% in year 8, 0.10% in year 9 and 0.05% in year
    10. The Advisor has not agreed to waive any portion of the Fund's fees and
    expenses beyond November 30, 2009.


                                       13
<PAGE>   16

                                    THE FUND

     The Fund is a recently organized, closed-end, nondiversified management
investment company registered under the Investment Company Act of 1940, as
amended (the "1940 Act"). The Fund was organized as a Massachusetts business
trust on August 10, 1999, pursuant to a Declaration of Trust governed by the
laws of the Commonwealth of Massachusetts. As a newly organized entity, the Fund
has no operating history. The Fund's principal office is located at One
Financial Center, Boston, MA 02111, and its telephone number is (617) 426-3750.

                                USE OF PROCEEDS


     The net proceeds of the offering of Common Shares will be approximately
$          ($          if the Underwriters exercise the overallotment option in
full) after payment of the estimated organization and offering costs. The
Advisor has agreed to pay (i) all organizational expenses and (ii) offering
costs (other than sales loads) that exceed $0.03 per Common Share. The Fund will
invest the net proceeds of the offering in accordance with the Fund's investment
objective and policies as stated below. It is presently anticipated that the
Fund will be able to invest substantially all of the net proceeds in municipal
bonds that meet its investment objective and policies within three months after
the completion of the offering. Pending such investment, it is anticipated that
the proceeds will be invested in short-term, tax-exempt securities.


                       INVESTMENT OBJECTIVE AND POLICIES


     The Fund's investment objective is to provide current income exempt from
regular federal income tax and California state personal income tax. This income
will be earned by investing primarily in investment grade municipal obligations
issued by or on behalf of the State of California or its political subdivisions,
agencies, authorities and instrumentalities. Securities will be purchased and
sold in an effort to maintain a competitive yield and to enhance return based
upon the relative value of the securities available in the marketplace.
Investments are based on the Advisor's research and ongoing credit analysis, the
underlying materials for which are generally not available to individual
investors. The Fund is designed for investors who are residents of California
for tax purposes.



     During normal market conditions, substantially all of the Fund's total
assets (at least 80%) will be invested in debt obligations, the interest on
which is, in the opinion of issuer's counsel (or on the basis of other reliable
authority), exempt from regular federal income tax and California state personal
income taxes ("California Municipal Obligations"). At least 80% of the Fund's
total assets will normally be invested in California Municipal Obligations rated
at least investment grade at the time of investment (which are those rated Baa
or higher by Moody's Investors Service, Inc. ("Moody's") or BBB or higher by
Standard & Poor's Ratings Services ("Standard & Poor's")) or comparably rated by
any other nationally recognized statistical rating organization ("Rating
Agency")) or, if unrated, determined by the Advisor to be of at least investment
grade quality. At least 65% of the Fund's total assets will normally be invested
in California Municipal Obligations that are covered by insurance guaranteeing
the timely payment of principal at maturity and interest. Each insured
California Municipal Obligation in the Fund's portfolio will be covered by
specific insurance (either original issue insurance or secondary market
insurance) or portfolio insurance purchased by the Fund. From time to time, the
Fund may hold a significant amount of Municipal Obligations not rated by a
Rating Agency. Under normal conditions, the Fund will invest primarily in
long-term California Municipal Obligations (i.e., over 10 years). The Fund may,
however, invest in California Municipal Obligations without regard to maturity
or duration.


                                       14
<PAGE>   17


     The Fund may invest up to 20% of its total assets in California Municipal
Obligations rated Ba or B by Moody's or BB or B by Standard & Poor's and unrated
California Municipal Obligations considered to be of comparable quality by the
Advisor. The Fund may not invest in bonds rated below B or unrated bonds deemed
by the Advisor to be of comparable quality. Investment in California Municipal
Obligations of below investment grade quality involves special risks as compared
with investment in higher grade Municipal Obligations. These risks include
greater sensitivity to a general economic downturn and less secondary market
trading. Securities rated below investment grade are commonly known as "junk
bonds." Such securities are regarded, on balance, as predominantly speculative
with respect to the issuer's ability to pay interest and repay principal owed.
When the Fund invests in lower-rated or unrated California Municipal
Obligations, it may be more dependent on the Advisor's research capabilities
than when it invests in investment grade California Municipal Obligations. See
"Additional Risk Considerations." For a description of municipal bond ratings,
see Appendix A to the Statement of Additional Information.



     In assessing the quality of Municipal Obligations (as defined below) with
respect to the foregoing requirements, the Advisor will consider the portfolio
insurance purchased by the Fund or the specific insurance, letters of credit or
similar credit enhancements covering particular Municipal Obligations and the
creditworthiness of the financial institution providing such insurance or credit
enhancements. For example, if Municipal Obligations are covered by insurance
policies issued by insurers whose claims-paying ability is rated Aaa by Moody's
or AAA by Standard & Poor's, or comparably rated by any other Rating Agency, the
Advisor may consider such Municipal Obligations to be equivalent to Aaa or AAA
rated securities, as the case may be, even though such Municipal Obligations
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. When assessing the quality of Municipal Obligations, the Advisor will
also consider the standards applied by insurance companies when determining
eligibility for portfolio insurance.


     The foregoing credit quality policies apply only at the time a security is
purchased, and the Fund is not required to dispose of a security in the event
that a Rating Agency downgrades its assessment of the credit characteristics of
a particular issue. In determining whether to retain or sell such a security,
the Advisor may consider such factors as the Advisor's assessment of the credit
quality of the issuer of such security, the price at which such security could
be sold and the rating, if any, assigned to such security by other Rating
Agencies.


     If current market conditions persist, the Fund expects that approximately
85% of its initial portfolio will consist of investment grade California
Municipal Obligations rated as such at the time of investment by Moody's,
Standard & Poor's or another Rating Agency (approximately 65% in Aaa/AAA; 10% in
A; and 10% in Baa/BBB). Subject to market availability, the Fund would likely
seek to invest approximately 5% of its initial portfolio in California Municipal
Obligations that are, at the time of investment, rated Ba by Moody's, BB by
Standard & Poor's or comparably rated by another Rating Agency and 10% in
California Municipal Obligations that are not rated by any Rating Agency.


     Municipal Obligations, including California Municipal Obligations, include
bonds, notes and commercial paper issued by municipalities for a wide variety of
both public and private purposes, the interest on which is, in the opinion of
issuer's counsel (or on the basis of other reliable authority), exempt from
regular federal income tax. Public purpose municipal bonds include general
obligation and revenue bonds. General obligation bonds are backed by the taxing
power of the issuing municipality. Revenue bonds are backed by the revenues of a
project or facility or from the proceeds of a specific revenue source. Some
revenue bonds are payable solely or partly from funds which are subject to
annual appropriations by a state's legislature. Municipal notes include bond
anticipation, tax anticipation and revenue anticipation notes. Bond, tax and

                                       15
<PAGE>   18

revenue anticipation notes are short-term obligations that will be retired with
the proceeds from an anticipated bond issue, tax revenue or facility revenue,
respectively.

     Some of the securities in which the Fund invests may include so-called
"zero-coupon" bonds, whose values are subject to greater fluctuation in response
to changes in market interest rates than bonds that pay interest currently.
Zero-coupon bonds are issued at a significant discount from face value and pay
interest only at maturity, rather than at intervals during the life of the
security. The Fund is required to take into account income from zero-coupon
bonds on a current basis, even though it does not receive that income currently
in cash, and the Fund is required to distribute substantially all of its income
for each taxable year. Thus, the Fund may have to sell other investments to
obtain cash needed to make income distributions.


     Until such time as the Fund is fully invested (approximately two to three
months after the completion of this offering), the Fund may invest up to 20% of
its total assets in inverse floating rate municipal bonds (which are bonds whose
interest rates bear an inverse relationship to the interest rate on another
security or the value of an index) ("inverse floaters"). An investment in
inverse floaters may involve greater risk than an investment in a fixed rate
bond. Because changes in the interest rate on the other security or index
inversely affect the residual interest paid on the inverse floater, the value of
an inverse floater is generally more volatile than that of a fixed rate bond.
Inverse floaters have interest rate adjustment formulas which generally reduce
or, in the extreme, eliminate the interest paid to the Fund when short-term
interest rates rise, and increase the interest paid to the Fund when short-term
interest rates fall. Inverse floaters have varying degrees of liquidity, and the
prices of these securities may be volatile. These securities tend to
underperform the market for fixed rate bonds in a rising interest rate
environment, but tend to outperform the market for fixed rate bonds when
interest rates decline. Although volatile, inverse floaters typically offer the
potential for yields exceeding the yields available on fixed rate bonds with
comparable credit quality, coupon, call provisions and maturity. These
securities usually permit the investor to convert the floating rate to a fixed
rate (normally adjusted downward), and this optional conversion feature may
provide a partial hedge against rising rates if exercised at an opportune time.
Investment in inverse floaters may amplify the effects of the Fund's use of
leverage. Should short-term interest rates rise, the combination of the Fund's
investment in inverse floaters and its use of leverage likely will adversely
affect the Fund's income and distributions to Shareholders. The Fund does not
intend to invest in inverse floaters once it becomes fully invested.



     It is a fundamental policy of the Fund, which may not be changed without
approval of holders of a majority of the Fund's outstanding voting securities
(as defined in the Statement of Additional Information under "Investment
Objective and Policies -- Fundamental Investment Policies"), to invest, under
normal circumstances, at least 80% of its total assets in California Municipal
Obligations. Except for this policy and the other fundamental investment
policies listed in the Statement of Additional Information under "Investment
Objective and Policies -- Fundamental Investment Policies," the Fund's
investment policies and its investment objective may be changed without
shareholder approval.


     In addition to investing in Municipal Obligations, the Fund may attempt to
hedge against changes in interest rates by engaging in transactions involving
interest rate futures contracts ("financial futures"), index futures and options
on financial futures, tax-exempt indices and index futures, as a hedge against
changes in interest rates. See "Investment Objective and Policies -- Hedging
Activities." The costs of and possible losses incurred from such transactions
may reduce the Fund's current return.

     The Fund may also purchase securities on a "when-issued" basis, enter into
repurchase agreements and invest in other taxable instruments, subject to
certain limitations. See "Investment Objective and Policies -- Forward
Commitments," "Investment Objective and Policies -- Repurchase Agreements" and
"Investment Objective and Policies -- Temporary and Defensive Investments."

                                       16
<PAGE>   19


     The Advisor utilizes a top-down investment strategy that seeks to strike a
balance between investment performance potential and avoiding undue credit risk.
The Advisor first analyzes the various factors that can influence the direction
of interest rates, including economic growth and inflation. It then structures
the Fund based on its view of the appropriate sector and geographic
diversification. Investments are based on the Advisor's fundamental research and
ongoing credit analysis. The Advisor's research analysts examine credit
histories, revenue sources, capital structures and other data. The Advisor
employs a total of 20 municipal investment professionals. These professionals
work in a team-based environment in which every investment team holds a vested
interest in a portfolio's performance.


DESCRIPTION OF MUNICIPAL OBLIGATIONS


     As used in this prospectus, the term "Municipal Obligations" refers to debt
obligations the interest on which was at the time of issuance, in the opinion of
issuer's counsel (or on the basis of other reliable authority), exempt from
federal income tax (other than the possible incidence of any alternative minimum
tax ("AMT")). (For a description of the federal AMT, see "Tax Matters -- Federal
Income Tax Matters.") The term "California Municipal Obligations" refers to
Municipal Obligations the interest on which is also exempt from California state
personal income tax. California Municipal Obligations include debt obligations
issued by the State of California or any political subdivision thereof, or any
other municipal debt obligations the interest on which is exempt from federal
income tax and California state personal income tax, to obtain funds for various
public purposes, including the construction of a wide range of public facilities
such as airports, bridges, highways, housing, mass transportation, roads,
schools and water and sewer works or for other public purposes. Interest on
industrial development bonds used to fund the construction, equipment, repair or
improvement of privately operated industrial or commercial facilities may also
be exempt from federal income and/or California state personal income taxes, but
the size of such issues is limited under current federal tax law. The Fund may
not be a desirable investment for "substantial users" of facilities financed by
industrial development bonds or private activity bonds or for "related persons"
of substantial users. See "Tax Matters" in the Statement of Additional
Information. The Fund has no present intention of investing in Municipal
Obligations the interest on which is not exempt from federal income tax (other
than the possible incidence of any AMT). The Advisor will not, in any event,
conduct any independent investigation as to the tax status of any securities in
which the Fund invests or of the issuers of such securities.



     The two principal classifications of Municipal Obligations are general
obligation bonds and revenue bonds. General obligation bonds are obligations
involving the credit of an issuer possessing taxing power and are payable from
the issuer's general unrestricted revenues and not from any particular fund or
source. The characteristics and method of enforcement of general obligation
bonds vary according to the law applicable to the particular issuer, and payment
may be dependent upon appropriation by the issuer's legislative body. Revenue
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 or
other specific revenue source. Tax-exempt industrial development bonds and other
private activity bonds also generally are revenue bonds and thus not payable
from the unrestricted revenues of the issuer. The credit quality of industrial
development bonds and private activity bonds is usually directly related to the
credit of the corporate user of the facilities. Payment of principal of and
interest on industrial development bonds and other private activity bonds is the
responsibility of the corporate user (and any guarantor).


     Prices and yields on Municipal Obligations are dependent on a variety of
factors, including general market conditions, the financial condition of the
issuer, general conditions in the tax-exempt bond market, the size of a
particular offering, the maturity of the obligation and the ratings of
particular issues, and are subject to change from time to time. Information
about the financial condition of an issuer of Municipal

                                       17
<PAGE>   20

Obligations may not be as extensive as that which is made available by
corporations whose securities are publicly traded.

     The ratings of Moody's, Standard & Poor's and other Rating Agencies
represent their opinions and are not absolute standards of quality. Municipal
Obligations with the same maturity, interest rate and rating may have different
yields while Municipal Obligations of the same maturity and interest rate with
different ratings may have the same yield.


     Obligations of issuers of Municipal Obligations are subject to the
provisions of bankruptcy, insolvency and other laws, such as the Federal
Bankruptcy Reform Act of 1978, affecting the rights and remedies of creditors.
Congress or state legislatures may seek to extend the time for payment of
principal or interest, or both, or to impose other constraints upon enforcement
of such obligations. There is also the possibility that, as a result of
litigation or other conditions, the power or ability of issuers to meet their
obligations to pay interest on and principal of their Municipal Obligations may
be materially impaired or their obligations may be found to be invalid or
unenforceable. Such litigation or conditions may from time to time have the
effect of introducing uncertainties in the market for Municipal Obligations or
certain segments thereof, or materially affecting the credit risk with respect
to particular bonds. Adverse economic, business, legal or political developments
might affect all or a substantial portion of the Fund's Municipal Obligations in
the same manner.



     Interest income from certain types of Municipal Obligations may be a tax
preference item for purposes of the federal AMT for individual investors.
Distributions to corporate investors of certain interest income may also be
indirectly subject to the AMT. The Fund may not be suitable for investors
currently or who may become subject to the AMT.



MUNICIPAL OBLIGATION INSURANCE



     At least 65% of the Fund's total assets will normally be invested in
California Municipal Obligations that are covered by insurance guaranteeing the
timely payment of principal at maturity and interest. Each insured Municipal
Obligation in the Fund's portfolio will be covered by specific insurance (either
original issue insurance or secondary market insurance) or portfolio insurance
purchased by the Fund. It is anticipated that initially a majority of the
insured Municipal Obligations held by the Fund will be insured under insurance
obtained by parties other than the Fund.



     When purchasing insured Municipal Obligations, the Fund will generally seek
to purchase those Municipal Obligations covered by insurance that is issued by
insurers whose claims-paying ability is rated "Aaa" by Moody's or "AAA" by
Standard & Poor's, or comparably rated by another Rating Agency. Similarly, the
Fund will generally obtain portfolio insurance issued by insurers whose
claims-paying ability is rated "Aaa" by Moody's or "AAA" by Standard & Poor's,
or comparably rated by another Rating Agency. However, the Fund may also
purchase Municipal Obligations insured by, and obtain portfolio insurance from,
insurers with a lower rating. The Fund may obtain Municipal Obligation insurance
from Ambac Assurance Corporation, Financial Security Assurance Inc., MBIA
Insurance Corporation, Financial Guaranty Insurance Company, Asset Guaranty
Insurance Company and American Capital Access Financial Guaranty Corporation.
The Fund is not obligated to obtain Municipal Obligation insurance from either
of these insurers, and may obtain Municipal Obligation insurance from insurers
other than or in addition to these insurers. While there is currently no limit
on the percentage of the Fund's assets that may be invested in Municipal
Obligations insured by any one insurer, guidelines of one or more Rating
Agencies which may issue ratings for any preferred shares which may be issued by
the Fund in the future may impose such limitations.


                                       18
<PAGE>   21


     Municipal Obligations covered by specific insurance, rather than by
portfolio insurance, will have the same rating as the rating of the
claims-paying ability of the insurer issuing the policy. Municipal Obligations
covered by portfolio insurance, however, will be rated based primarily on the
credit characteristics of the issuer, without regard to the portfolio insurance,
and generally will be rated below "Aaa" or "AAA." While the Fund holds a
Municipal Obligation covered by portfolio insurance, such Municipal Obligations
will, effectively, be of the same credit quality as a Municipal Obligation
covered by a specific insurance policy issued by the same insurance company.



     The Fund's policy of generally buying Municipal Obligations insured by
insurers whose claims-paying ability is rated "Aaa" or "AAA" applies only at the
time the Fund buys the Municipal Obligation. If a Rating Agency downgrades an
insurer's claims-paying ability, the Fund is not required to sell Municipal
Obligations covered by that insurer's policies. If a Rating Agency downgrades
its rating of an insurer, it would probably downgrade its rating of a Municipal
Obligation covered by that insurer's original issuance insurance or secondary
market insurance. Municipal Obligations in the Fund's portfolio covered by that
insurer's portfolio insurance would also probably be downgraded. Moody's and
Standard & Poor's continually assess the claims-paying ability of insurers and
the creditworthiness of Municipal Obligation issuers, and there can be no
assurance that Moody's and Standard & Poor's will not downgrade their ratings.
The value of Municipal Obligations covered by portfolio insurance that are in
default or in significant risk of default will be determined by separately
establishing a value for the Municipal Obligation and a value for the portfolio
insurance.



     ORIGINAL ISSUE INSURANCE.  Original issue insurance is insurance purchased
by the issuer of Municipal Obligations or a third party to cover a particular
issue of Municipal Obligations at the time those Municipal Obligations are
issued. Under this insurance, the insurer unconditionally guarantees to the
holder of the Municipal Obligation the timely payment of principal and interest
when and as these payments become due if the issuer does not pay them. However,
if the due date of the principal is accelerated because of mandatory or optional
redemption (other than acceleration because of a mandatory sinking fund
payment), default or otherwise, the payments guaranteed may be made in the
amounts and at the times as principal payments would have been due had there not
been any acceleration. The insurer is responsible for these payments less any
amounts the holders receive from any trustee for the Municipal Obligations
issuer or from any other source. Original issue insurance does not guarantee the
payment of any redemption premium (except for certain premium payments for
certain small issue industrial development and pollution control Municipal
Obligations), the value of the Fund's shares or the market value of Municipal
Obligations, or payments of any tender purchase price upon the tender of the
Municipal Obligations. Original issue insurance also does not insure against
nonpayment of principal or interest on Municipal Obligations resulting from the
insolvency, negligence, or any other act or omission of the trustee or other
paying agent for these Municipal Obligations.



     Original issue insurance remains in effect as long as the Municipal
Obligations it covers remain outstanding and the insurer remains in business,
regardless of whether the Fund ultimately disposes of these Municipal
Obligations. Consequently, original issue insurance may be considered to
represent an element of market value of the Municipal Obligations so insured,
but the exact effect, if any, of this insurance on the market value cannot be
estimated.



     SECONDARY MARKET INSURANCE.  Secondary market insurance is insurance that
is purchased by the purchaser of a Municipal Obligation (such as the Fund),
rather than the issuer, to cover that security. Secondary market insurance
generally provides the same type of coverage as original issue insurance and, as
with original issue insurance, secondary market insurance remains in effect as
long as the Municipal Obligations it covers remain outstanding and the insurer
remains in business, regardless of whether the Fund ultimately disposes of these
Municipal Obligations.

                                       19
<PAGE>   22


     One of the purposes of acquiring secondary market insurance for a
particular Municipal Obligation is to enable the Fund to enhance the value of
that security. The Fund, for example, might seek to buy a particular Municipal
Obligation and obtain secondary market insurance for it if, in the Advisor's
opinion, the market value of the security, as insured, would exceed the current
value of the security without insurance plus the cost of the secondary market
insurance. Similarly, if the Fund owns but wishes to sell a Municipal Obligation
that is then covered by portfolio insurance, the Fund might seek to obtain
secondary market insurance for it if, in the Advisor's opinion, the net proceeds
of the Fund's sale of the security, as insured, would exceed the current value
of the security plus the cost of the secondary market insurance. In determining
whether to insure Municipal Obligations the Fund owns, an insurer will apply its
own standards, which correspond generally to the standards it has established
for determining the insurability of new issues of Municipal Obligations. See
"Original Issue Insurance" above.



     PORTFOLIO INSURANCE.  The Fund may also purchase policies of portfolio
insurance, each of which would guarantee the payment of principal and interest
on specified eligible Municipal Obligations the Fund has bought. Except as
described below, portfolio insurance generally provides the same type of
coverage as original issue insurance or secondary market insurance. Municipal
Obligations insured under one portfolio insurance policy would generally not be
insured under any other policy the Fund buys. A Municipal Obligation is eligible
for coverage under a policy if it meets certain requirements of the insurer. If
a Municipal Obligation is already covered by original issue insurance or
secondary market insurance, then the security is not required to be additionally
insured under any portfolio insurance policy that the Fund may buy.



     Each portfolio insurance policy will terminate for any covered Municipal
Obligation that has been redeemed or that the Fund has sold on the date of
redemption or the settlement date of sale. A portfolio insurer will have no
liability after such date under the relevant portfolio insurance policy for any
such Municipal Obligation, except that if the redemption date or settlement date
occurs after a record date and before the related payment date for any Municipal
Obligation, the policy will terminate for that Municipal Obligation on the
business day immediately following the payment date.



     One or more portfolio insurance policies purchased by the Fund may provide
the Fund, under an irrevocable commitment of the insurer, with an option to
obtain permanent insurance for a Municipal Obligation upon the sale of that
Municipal Obligation by the Fund. The Fund would exercise the right to obtain
permanent insurance upon payment of a single, predetermined insurance premium
payable from the sale proceeds of the Municipal Obligation. The Fund expects to
exercise any such option only if, in the Advisor's opinion, the net proceeds
from the sale of a given Municipal Obligation, as insured, would exceed the
proceeds from the sale of that security without insurance.



     The permanent insurance premium for each Municipal Obligation is determined
based upon the insurability of each security as of the date the Fund originally
bought the security. This premium will not be increased or decreased for any
change in the security's creditworthiness, unless the security is in default as
to payment of principal or interest, or both. If this happens, the permanent
insurance premium will be subject to an increase predetermined at the date of
the Fund's purchase.



     The Fund generally intends to retain any insured Municipal Obligations
covered by portfolio insurance that are in default or in significant risk of
default and to place a value on the insurance, which value ordinarily will be
the difference between the market value of the defaulted Municipal Obligation
and the market value of similar Municipal Obligations of minimum investment
grade (that is, rated "Baa" or "BBB") that are not in default. In certain
circumstances, however, the Advisor may determine that an alternative value for
the insurance, such as the difference between the market value of the defaulted
Municipal Obligation and either its par value or the market value of similar
Municipal Obligations that are


                                       20
<PAGE>   23


not in default or in significant risk of default, is more appropriate. To the
extent that the Fund holds defaulted Municipal Obligations, it may be limited in
its ability to manage its investment portfolio and to purchase other Municipal
Obligations. Except as described above for Municipal Obligations covered by
portfolio insurance that are in default or subject to significant risk of
default, the Fund will not place any value on the insurance in valuing the
Municipal Obligations it holds.



     Because each portfolio insurance policy will terminate for a particular
covered Municipal Obligation on the date the Fund sells that Municipal
Obligation, the insurer will be liable only for those payments of principal and
interest that are then due and owing (unless the Fund obtains permanent
insurance). Portfolio insurance will not enhance the marketability of the Fund's
Municipal Obligations, whether or not the Municipal Obligations are in default
or in significant risk of default. On the other hand, because original issue
insurance and secondary market insurance will remain in effect as long as the
Municipal Obligations they cover are outstanding, these insurance policies may
enhance the marketability of these Municipal Obligations even when they are in
default or in significant risk of default. The exact effect of insurance, if
any, on marketability, cannot be estimated. Accordingly, the Fund may determine
to retain or, alternatively, to sell Municipal Obligations covered by original
issue insurance or secondary market insurance that are in default or in
significant risk of default.



     The Fund would generally pay the premiums for a portfolio insurance policy
monthly, and premiums are adjusted for purchases and sales of Municipal
Obligations covered by the policy during the month. The yield on the Fund's
portfolio would be reduced to the extent of the insurance premiums the Fund pays
which, in turn, will depend upon the characteristics of the covered Municipal
Obligations. If the Fund were to buy secondary market insurance for any
Municipal Obligation then covered by a portfolio insurance policy, the coverage
and the obligation to pay monthly premiums under the portfolio insurance policy
would cease with respect to that Municipal Obligation.


HEDGING ACTIVITIES

     Hedging is a means of transferring risk that an investor does not desire to
assume. The Advisor believes it is possible to reduce or enhance the effects of
interest rate fluctuations through the use of futures contracts and options on
financial instruments.


     The Fund may purchase and sell financial futures and tax-exempt bond index
futures contracts ("index futures") to hedge against changes caused by changing
interest rates or changes in the market value of Municipal Obligations that are
in its portfolio or that it intends to acquire. In order to hedge, the Fund may
also purchase and write put and call options on financial futures, tax-exempt
bond indices and index futures. The costs of and possible losses incurred from
these transactions may reduce the Fund's current return. The decision as to when
and to what extent the Fund will engage in hedging transactions will depend upon
a number of factors, including prevailing market conditions, the composition of
the Fund's portfolio and the availability of suitable transactions. Accordingly,
there can be no assurance that the Fund will engage in hedging transactions at
any given time or from time to time or that such transactions, if available,
will be effective.


     Income earned by the Fund from its hedging activities will be treated as
capital gain in the Fund's hands and, if not offset by net realized capital
losses, will be distributed to shareholders in taxable distributions. See "Tax
Matters -- Federal Income Tax Matters."

     The Fund will not engage in transactions in futures contracts or related
options for speculative purposes but only as a hedge against changes resulting
from market conditions in the values of securities in its portfolio or that it
intends to acquire. In addition, the Fund will not purchase or sell futures
contracts or purchase or sell related options if immediately thereafter the sum
of the amount of its initial margin
                                       21
<PAGE>   24

deposits on its existing futures and related options positions and premiums paid
for related options would exceed 5% of its total assets (taken at current
value). In instances involving the purchase or sale of futures contracts or the
writing of call or put options thereon by the Fund, an amount of cash or liquid
high-grade debt securities equal to the underlying commodity value of the
futures contracts and options (less any related margin deposits) will be
deposited in a segregated account with the Fund's custodian to collateralize the
position and thereby ensure that the use of such futures contracts and options
is unleveraged.

     The Fund might not employ any of the hedging strategies described below,
and no assurance can be given that any strategy used will succeed. If the
Advisor incorrectly forecasts interest rates, market values or other economic
factors in utilizing a hedging strategy for the Fund, the Fund might have been
in a better position if it had not entered into the position at all. Also,
suitable hedging transactions may not be available in all circumstances or, if
available, effective.

     FINANCIAL FUTURES.  In connection with its hedging activities, the Fund may
engage in transactions involving financial futures. A financial future is a
contract that obligates the seller to deliver and the purchaser to take delivery
of a specified type of financial instrument at a specified future time and at a
specified price. Although financial futures contracts by their terms require
actual delivery and acceptance of securities, in most cases the contracts are
closed out before the settlement date without the making or taking of delivery
of securities. Closing out a futures contract purchase or sale is effected by
entering into an offsetting transaction. Financial futures trade on boards of
trade that have been designated "contracts markets" by the Commodity Futures
Trading Commission. Financial futures trade on these markets in a manner that is
similar to the way a stock trades on a stock exchange. The boards of trade,
through their clearing corporations, guarantee performance of the contracts.
Currently, there are financial futures based on long-term U.S. Treasury bonds,
U.S. Treasury notes, Government National Mortgage Association ("GNMA")
certificates, three-month U.S. Treasury bills and three-month domestic bank
certificates of deposit. The Fund expects other financial futures to be
developed and traded. The Fund expects to engage in transactions involving
financial futures if, in the opinion of the Advisor, they are appropriate
hedging instruments for the Fund.

     The sale of financial futures by the Fund is for the purpose of hedging the
Fund's holdings of long-term debt securities. In the event of a rise in interest
rates, the value of the Fund's short position in financial futures would
increase at approximately the same rate as the value of the long-term bonds in
its portfolio would decline, thereby keeping the net asset value of the Fund
from declining as much as it otherwise would have.

     If, on the other hand, interest rates were expected to decline, the Fund
might purchase futures contracts and thus take advantage of the anticipated rise
in the value of long-term securities. In such an event, the futures contracts
could be liquidated and the Fund's cash reserves could be raised to buy long-
term securities in the cash market.

     Unlike when the Fund purchases or sells a security, no price is paid or
received by the Fund upon the sale or purchase of a financial future. The Fund
will initially be required to deposit with the Fund's custodian an amount of
"initial margin" of cash or U.S. Treasury bills equal to a small percentage of
the contract amount. The nature of initial margin in futures transactions is
different from that of margin in securities transactions in that initial margin
on financial futures does not involve the borrowing of funds by the customer to
finance the transactions. Rather, the initial margin is in the nature of a
performance bond or good faith deposit on the contract which is returned to the
Fund upon termination of the financial future, assuming all contractual
obligations have been satisfied. Subsequent payments to and from the broker,
called maintenance margin, will be made on a daily basis as the price of the
underlying debt security fluctuates, making the long and short positions in the
financial future more or less valuable, a process

                                       22
<PAGE>   25

known as "marking to market." For example, when the Fund has sold a financial
future and the price of the underlying debt security has declined, that position
will have increased in value and the Fund will receive from the broker a
maintenance margin payment equal to that increase. Conversely, where the Fund
has sold a financial future and the price of the underlying debt security has
increased, the position would be less valuable, and the Fund would be required
to make a maintenance margin payment to the broker. At any time prior to
expiration of the financial future, the Fund may elect to close the position by
taking an opposite position in the financial future. A final determination of
maintenance margin is then made, additional cash is required to be paid by or
released to the Fund, and the Fund realizes a loss or a gain. While financial
futures based on debt securities do provide for the delivery and acceptance of
securities, such deliveries and acceptances are very seldom made. Generally, the
financial future is terminated by entering into an offsetting transaction. An
offsetting transaction for a financial future sale is effected by the Fund
entering into a financial future purchase for the same aggregate amount of the
specific type of financial instrument and same delivery date. If the price in
the sale exceeds the price in the offsetting purchase, the Fund immediately is
paid the difference and thus realizes a gain. If the offsetting purchase price
exceeds the sale price, the Fund pays the difference and realizes a loss.

     There are several risks in connection with the use of financial futures by
the Fund as a hedging device. One risk may arise because of the imperfect
correlation between movements in the price of the financial future and movements
in the price of the debt securities that are the subject of the hedge. Financial
futures based on U.S. Government securities and GNMA certificates historically
have reacted to an increase or decrease in interest rates in a similar fashion
to the underlying U.S. Government securities and GNMA certificates. To the
extent, however, that the Fund enters into financial futures on other than
Municipal Obligations, there is a possibility that the value of such financial
futures would not vary in direct proportion to the value of the Fund's holdings
of Municipal Obligations.

     Another result of the imperfect correlation between movements in the prices
of the financial future and of the debt securities being hedged is that the
price of the financial future may move more or less than the price of the debt
securities being hedged. If the price of the financial future moves less than
the price of the securities that are the subject of the hedge, the hedge will
not be fully effective, but if the price of the securities being hedged has
moved in an unfavorable direction, the Fund would be in a better position than
if it had not hedged at all. If the price of the securities being hedged has
moved in a favorable direction, the advantage will be partially offset by the
futures contract. If the price of the financial future moves more than the price
of the security, the Fund will experience either a loss or a gain on the future
which will not be completely offset by movements in the prices of the debt
securities which are the subject of the hedge. To compensate for the imperfect
correlation of movements in the price of debt securities being hedged and
movements in the price of related financial futures, the Fund may purchase or
sell financial futures in a greater or lesser dollar amount than the dollar
amount of the securities being hedged.

     The market prices of financial futures may be affected by several factors
other than interest rates. First, all participants in the futures markets are
subject to margin deposit and maintenance requirements. Rather than meeting
additional margin deposit requirements, investors may close financial futures
through offsetting transactions, which could distort the normal relationship
between the debt securities and futures markets. Second, from the point of view
of speculators, the deposit requirements in the futures market are less onerous
than margin requirements in the securities market. Therefore, increased
participation by speculators in the futures market may also cause temporary
price distortions. Due to the possibility of price distortions in the futures
market and the imperfect correlation between movements in the prices of debt
securities and movements in the prices of related financial futures, a correct
forecast of interest rate trends by the Fund's investment advisor may still not
result in a successful hedging transaction.

                                       23
<PAGE>   26

     Positions in futures contracts may be closed out only on an exchange or
board of trade that provides a secondary market for such futures. Although the
Fund intends to engage in futures transactions only on exchanges or boards of
trade where there appear to be an active secondary market, there is no assurance
that a liquid secondary market on an exchange or board of trade will exist for
any particular contract or at any particular time. If there is not a liquid
secondary market at a particular time, it may not be possible to close a futures
position at such time, and in the event of adverse price movements, the Fund
would continue to be required to make daily cash payments of maintenance margin.

     OPTIONS ON FINANCIAL FUTURES.  The Fund may also purchase and sell put and
call options on financial futures which are traded on a U.S. exchange or board
of trade or over the counter and enter into closing transactions with respect to
such options to terminate an existing position. The purchase of put options on
financial futures is analogous to the sale of futures so as to hedge the Fund's
portfolio of debt securities against the risk of rising interest rates. The
purchase of call options on financial futures is analogous to the purchase of
futures contracts and represents a means of obtaining exposure to market
appreciation at limited risk.

     The Fund may write call options on futures contracts, which constitutes a
partial hedge against any declining price of long-term debt securities. If the
futures price at expiration is below the exercise price, the Fund will retain
the full amount of the option premium, which provides a partial hedge against
any decline that may have occurred in the Fund's holdings of debt securities. If
the futures price at expiration exceeds the exercise price, the Fund will
ordinarily realize a loss equal to the amount of such excess.

     The Fund may write put options on futures contracts, which constitutes a
partial hedge against an increase in the price of long-term debt securities when
the Fund is not fully invested. If the futures price at expiration is above the
exercise price, the Fund will retain the full amount of the option premium,
which provides a partial hedge against any increase in the market price of
long-term debt securities. If the futures price at expiration is less than the
exercise price, the Fund will ordinarily realize a loss equal to the difference
between the futures price and the exercise price.

     An option on a futures contract gives the purchaser the right, in return
for the premium paid, to assume a position in a futures contract (a long
position if the option is a call and a short position if the option is a put) at
a specified exercise price at any time during the period of the option. Upon
exercise of the option, the delivery of the futures position by the writer of
the option to the holder of the option will be accompanied by delivery of the
accumulated balance in the writer's futures margin account which represents the
amount by which the market price of the futures contract, at exercise, exceeds,
in the case of a call, or is less than, in the case of a put, the exercise price
of the option on the futures contract. If an option is exercised on the last
trading day prior to the expiration date of the option, the settlement will be
made entirely in cash in an amount equal to the difference between the exercise
price of the option and the closing price of the futures contract on the
expiration date. Currently options can be purchased or written with respect to
futures contracts on U.S. Treasury bonds and notes on the Chicago Board of
Trade. The holder or writer of an option may terminate his position by selling
or purchasing an option of the same series. There is no guarantee that such
closing transactions can be effected.


     There are several special risks related to transactions in options on
futures. The ability to establish and close out positions on such options will
be subject to the maintenance of a liquid secondary market. Compared to the sale
of financial futures, the purchase of put options on financial futures involves
less potential risk to the Fund because the maximum amount at risk is the
premium paid for the options (plus transaction costs). However, there may be
circumstances when the purchase of a put option on a financial future would
result in a loss to the Fund when the sale of a financial future would not, such
as when there is no movement in the price of debt securities.


                                       24
<PAGE>   27

     An option position may be closed out only on an exchange or board of trade
that provides a secondary market for an option of the same series. Although the
Fund generally will purchase only those options for which there appears to be an
active secondary market, there is no assurance that a liquid secondary market on
an exchange or board of trade will exist for any particular option, or at any
particular time, and for some options, no secondary market on an exchange or
board of trade may exist. In such event, it might not be possible to effect
closing transactions in particular options, with the result that the Fund would
have to exercise its options in order to realize any profit and would incur
transaction costs upon closing out the futures positions acquired pursuant to
the exercise of such option.


     Reasons for the absence of a liquid secondary market for options on
financial futures on an exchange or board of trade include the following:


     - there may be insufficient trading interest in certain options;

     - restrictions may be imposed by an exchange or board of trade on opening
       transactions or closing transactions or both;

     - trading halts, suspensions or other restrictions may be imposed with
       respect to particular classes or series of options;

     - unusual or unforeseen circumstances may interrupt normal operations on an
       exchange or board of trade;

     - the facilities of an exchange or board of trade or the Options Clearing
       Corporation (the "Clearing Corporation") may not at all times be adequate
       to handle current trading volume; or

     - one or more exchanges or boards of trade could, for economic or other
       reasons, decide or be compelled at some future date to discontinue the
       trading of options (or a particular class or series of options), in which
       event the secondary market on that exchange or board of trade (or in that
       class or series of options) would cease to exist, although outstanding
       options on that exchange or board of trade which had been issued by the
       Clearing Corporation as a result of trades on that exchange or board of
       trade could continue to be exercisable in accordance with their terms.


Privately negotiated and over-the-counter options on financial futures may not
be as regulated as and may be less marketable than options traded on an exchange
or board of trade.


     There is no assurance that higher than anticipated trading activity or
other unforeseen events might not, at times, render certain of the facilities of
the Clearing Corporation inadequate, and thereby result in the institution by an
exchange or board of trade of special procedures that may interfere with the
timely execution of customers' orders.

     TAX-EXEMPT BOND INDEX TRANSACTIONS.  The Fund anticipates utilizing
tax-exempt bond index futures as a hedge against changes in the market value of
the Municipal Obligations in its portfolio or which it intends to acquire. A
tax-exempt bond index assigns relative values to the Municipal Obligations
included in the index. A tax-exempt bond index fluctuates with changes in the
market values of the Municipal Obligations included in the index. An index
future is a bilateral agreement pursuant to which two parties agree to receive
or deliver at settlement an amount of cash equal to a specified dollar amount
multiplied by the difference between the value of the index at the close of a
trading day of the contract and the price at which the future was originally
written. An index future has similar characteristics to financial futures
discussed above except that settlement is made through delivery of cash rather
than the underlying securities.

                                       25
<PAGE>   28

     The Fund's strategies in employing index futures will be similar to the
strategies involved in financial futures transactions. Tax-exempt bond index
futures transactions also will be subject to risks similar to those described
above with respect to financial futures, except that the correlation between
movements in the price of a futures contract and movements in the price of the
Fund's portfolio securities is likely to be higher for tax-exempt index futures
than for financial futures.

     The Fund may also purchase and write put and call options on tax-exempt
bond indices and on tax-exempt bond index futures and enter into closing
transactions with respect to such options. An option on an index gives the
holder the right to receive cash upon exercise of the option in an amount equal
to a specified multiple times the amount by which the fixed exercise price of
the option exceeds, in the case of a put, or is less than, in the case of a
call, the closing value of the underlying index on the date of exercise. An
option on an index future gives the purchaser the right, in return for the
premium paid, to assume a position in an index contract rather than to sell (in
the case of a put option) or buy (in the case of a call option) a debt
instrument at a specified exercise price at any time during the period of the
option. Upon exercise of the put option, the delivery of the futures position by
the holder of the option to the writer of the option will be accompanied by
delivery of the accumulated balance of the writer's futures margin account,
which represents the amount by which the market price of the index futures
contract, at exercise, is less than the exercise price of the put option on the
index future.

FORWARD COMMITMENTS

     New issues of Municipal Obligations are often purchased on a "when-issued"
or delayed delivery basis. The payment obligations and the interest rate that
will be received on the securities are fixed at the time the buyer enters into
the commitment. The Fund will not begin earning interest on such securities,
however, until the securities are scheduled for settlement. The Fund may enter
into such "forward commitments" if it holds and maintains until the settlement
date, in a segregated account, cash or liquid securities which are "marked to
market" daily in an amount sufficient to meet the purchase price. Forward
commitments involve a risk of loss if the value of the Municipal Obligation to
be purchased declines prior to the settlement date. Such a decline in value
could result from, among other things, changes in the level of interest rates or
other market factors. This risk is in addition to the risk of decline in the
value of the Fund's other assets. Although the Fund generally will enter into
forward commitments with the intention of acquiring Municipal Obligations for
its portfolio, the Fund may dispose of a commitment prior to settlement if the
Advisor deems it appropriate to do so. The Fund may realize capital gain or loss
upon the sale of forward commitments. Any such gains, if not offset by net
realized capital losses, will be distributed to shareholders in taxable
distributions.

REPURCHASE AGREEMENTS

     The Fund may purchase U.S. Government securities and concurrently enter
into so-called "repurchase agreements" with the seller, usually a bank or
broker-dealer, whereby the seller agrees to repurchase such securities at the
Fund's cost plus interest within a specified time (normally one day). While
repurchase agreements involve certain risks not associated with direct
investments in U.S. Government securities, the Fund will follow procedures
designed to minimize such risks. These procedures include effecting repurchase
transactions only with the member banks of the Federal Reserve System and
registered broker-dealers having creditworthiness substantially equivalent to
that of the issuers of investment grade debt securities. In addition, the Fund's
repurchase agreements will require that the Fund receive collateral which must
always be at least equal to the repurchase price, including any accrued interest
earned on the repurchase agreement. In the event of a default or bankruptcy by a
seller, the Fund will seek to liquidate such collateral. However, the exercise
of the Fund's right to liquidate such collateral could involve certain

                                       26
<PAGE>   29

costs or delays and, to the extent that proceeds from any sale upon a default of
the obligation to repurchase were less than the repurchase price, the Fund could
suffer a loss.

INVESTMENT COMPANY SECURITIES


     The Fund may purchase common shares of closed-end investment companies that
have a similar investment objective and policies to the Fund. In addition to
providing tax-exempt income, such securities may provide capital appreciation.
Such investments, which may also be leveraged and subject to the same risks as
the Fund, will not exceed 10% of the Fund's total assets, and no such company
will be affiliated with the Advisor. These companies bear fees and expenses that
the Fund will incur indirectly.


TEMPORARY AND DEFENSIVE INVESTMENTS


     A portion of the Fund's assets will be held in cash or invested in
short-term securities for day-to-day operating purposes. It is the intention of
the Fund that short-term investments will also be invested in securities exempt
from U.S. regular federal and California state income taxes. However, if such
securities are not available or if they are available only on a when-issued
basis, the Fund may invest up to 20% of its total assets in short-term
obligations of the U.S. Government. In such situations, the Fund may also invest
in repurchase agreements or short-term notes and obligations rated A-1+ of banks
that have or whose parent holding companies have long-term debt ratings of
Aaa/AAA or of corporations with long-term debt ratings of Aaa/AAA, the interest
on all of which is not exempt from federal or California state income taxes.
Notwithstanding the foregoing, the Fund may temporarily invest more than 20% of
its assets in such taxable obligations for defensive purposes. The ability of
the Fund to invest in securities other than tax-exempt securities (as well as
its ability to enter into repurchase agreements) is limited, however, by a
requirement of the Internal Revenue Code of 1986, as amended (the "Code"), that
at least 50% of its total assets be invested in tax-exempt securities at the end
of each quarter in order to pass through to shareholders the Federal income tax
exemption for dividends derived from net investment income on tax-exempt
securities. See "Tax Matters -- Federal Taxation of Shareholders." The Fund's
use of temporary and defensive investments may prevent it from achieving its
investment objective.


                       USE OF LEVERAGE AND RELATED RISKS


     The Fund expects to use leverage primarily through the future issuance of
Municipal Preferred Shares. The Fund initially intends to use leverage of
approximately 38% of its total assets (including the amount obtained through
leverage). The Fund generally will not use leverage if the Advisor anticipates
that it would result in a lower return to Common Shareholders for any
significant amount of time. The Fund also may borrow money as a temporary
measure for extraordinary or emergency purposes, including the payment of
dividends and the settlement of securities transactions which otherwise might
require untimely dispositions of Fund securities.



     The use of leverage creates risks for holders of the Common Shares,
including the likelihood of greater volatility of the net asset value and market
price of the Common Shares. There is a risk that fluctuations in the dividend
rates on any Municipal Preferred Shares may adversely affect the return to the
holders of the Common Shares. If the income from the securities purchased with
such funds is not sufficient to cover the cost of leverage (i.e., the interest
paid on the Municipal Preferred Shares), the return on the Fund would be less
than if leverage had not been used, and therefore the amount available for
distribution to Common Shareholders as dividends and other distributions would
be reduced or eliminated. The Advisor in its best judgment nevertheless may
determine to maintain the Fund's leveraged position, even if the Fund's
distribution to Common Shareholders is reduced, if it deems such action to be
appropriate in the circumstances. Investment by the Fund in inverse floaters may
amplify the effects of leverage and, during

                                       27
<PAGE>   30


periods of rising short-term interest rates, may adversely affect the Fund's
income and distributions to Common Shareholders. During periods in which the
Fund is using leverage, the fees paid to the Advisor for investment advisory and
administrative services will be higher than if the Fund did not use leverage
because the fees paid will be calculated on the basis of the Fund's total net
assets, including proceeds from the issuance of preferred shares.



     Capital raised through leverage would be subject to dividend payments which
may exceed the income and appreciation on the assets purchased. The issuance of
preferred shares would involve offering expenses and other costs and may limit
the Fund's freedom to pay dividends on Common Shares or to engage in other
activities. The issuance of a class of preferred shares having priority over the
Fund's Common Shares could create an opportunity for greater return per Common
Share, but at the same time such leveraging is a speculative technique in that
it could increase the Fund's exposure to capital risk. Unless the income and
appreciation, if any, on assets acquired with the proceeds of any offering of
preferred shares exceed the cost of issuing an additional class of securities
(and other Fund expenses), the use of leverage will diminish the investment
performance of the Fund's Common Shares compared with what it would have been
without leverage.



     The Fund may be subject to certain restrictions on investments imposed by
guidelines of one or more Rating Agencies which may issue ratings for any
preferred shares issued by the Fund. These guidelines may impose asset coverage
and Fund composition requirements that are more stringent than those imposed on
the Fund by the 1940 Act. It is not anticipated that these covenants or
guidelines will impede the Advisor from managing the Fund's portfolio in
accordance with the Fund's investment objective and policies.



     Under the 1940 Act, the Fund is not permitted to issue preferred shares
unless, immediately after such issuance, the net asset value of the Fund's
portfolio is at least 200% of the liquidation value of the outstanding preferred
shares (i.e., such liquidation value may not exceed 50% of the Fund's total
assets). In addition, the Fund is not permitted to declare any cash dividend or
other distribution on its Common Shares unless, at the time of such declaration,
the net asset value of the Fund's portfolio (determined after deducting the
amount of such dividend or other distribution) is at least 200% of such
liquidation value. If preferred shares are issued, the Fund intends, to the
extent possible, to purchase or redeem preferred shares from time to time to
maintain asset coverage of any preferred shares of at least 200%. In addition,
under current federal income tax law, the Fund is required to allocate a portion
of any capital gains or other taxable income to holders of preferred shares. The
terms of any preferred shares are expected to require the Fund to pay to any
preferred shareholders additional dividends intended to compensate the preferred
shareholders for taxes payable on any capital gains or other taxable income
allocated to the preferred shares. Any such additional dividends will reduce the
amount available for distribution to the Common Shareholders. If the Fund has
preferred shares outstanding, two of the Fund's Trustees will be elected by the
holders of preferred shares voting as a separate class. The remaining Trustees
will be elected by holders of Common Shares and preferred shares voting together
as a single class. In the event the Fund failed to pay dividends on its
preferred shares for two years, preferred shareholders would be entitled to
elect a majority of the Trustees until the dividends were paid.



     The Fund is required to meet certain distribution requirements in order to
qualify for federal income taxation as a "regulated investment company" and in
order to avoid corporate level income and excise tax. To the extent dividends on
any preferred shares do not meet these requirements, the remainder must be
distributed to the holders of the Common Shares. If the Fund is precluded from
making distributions on the Common Shares because of any applicable asset
coverage requirements, the Fund may be liable for an excise tax or an income
tax, and may also fail to qualify for federal income tax treatment as a
regulated investment company.


                                       28
<PAGE>   31

     The Fund's willingness to issue new securities for investment purposes, and
the amount the Fund will issue, will depend on many factors, the most important
of which are market conditions and interest rates. Successful use of a
leveraging strategy may depend on the Advisor's ability to correctly predict
interest rates and market movements, and there is no assurance that a leveraging
strategy will be successful during any period in which it is employed.


     Assuming the utilization of leverage in the amount of 38% of the Fund's
total assets and an annual dividend rate on preferred shares of 3.65% payable on
such leverage based on market rates as of the date of this prospectus, the
additional income that the Fund must earn (net of expenses) in order to cover
such dividend payments would be 1.39%. The Fund's actual cost of leverage will
be based on market rates at the time the Fund undertakes a leveraging strategy,
and such actual cost of leverage may be higher or lower than that assumed in the
previous example.



     The following table is designed to illustrate the effect on the return to a
holder of the Fund's Common Shares of leverage in the amount of approximately
38% of the Fund's total assets, assuming hypothetical annual returns of the
Fund's portfolio of minus 10% to plus 10%. As the table shows, leverage
generally increases the return to Common Shareholders when portfolio return is
positive and greater than the cost of leverage and decreases the return when the
portfolio return is negative or less than the cost of leverage. The figures
appearing in the table are hypothetical and actual returns may be greater or
less than those appearing in the table.



<TABLE>
<S>                                                   <C>      <C>      <C>     <C>    <C>
Assuming Portfolio Return (net of expenses)........      (10%)     (5%)     0%     5%     10%
Corresponding Share Return Assuming 38% Leverage...   (18.37%) (10.30%) (2.24%) 5.83%  13.89%
</TABLE>


     If the Fund issues Municipal Preferred Shares, the ability of the Fund to
take certain actions or enter into certain transactions, such as transactions in
which other entities or persons acquire control of the Fund or convert the Fund
to open-end status, may be limited. See "Description of Shares -- Municipal
Preferred Shares."


     Unless and until the Fund issues preferred shares, the Common Shares will
not be leveraged, and the risks and special considerations related to leverage
described in this prospectus will not apply. Such leveraging of the Shares
cannot be achieved until the proceeds resulting from the use of leverage have
been invested in accordance with the Fund's investment objective and policies.


                                       29
<PAGE>   32

                         ADDITIONAL RISK CONSIDERATIONS


     CERTAIN RISKS ASSOCIATED WITH INVESTMENTS IN CALIFORNIA MUNICIPAL
OBLIGATIONS.  Since the Fund will invest primarily in California Municipal
Obligations, the performance of the Fund is especially affected by factors
pertaining to the California economy and other factors specifically affecting
the ability of issuers of California Municipal Obligations to meet their
obligations. As a result, the value of the Fund's shares may fluctuate more
widely than the value of shares of a fund investing in a number of different
states. The ability of state, county, or local governments or other issuers of
California Municipal Obligations to meet their obligations will depend primarily
on the availability of tax and other revenues to those entities and on their
fiscal conditions generally. The amounts of tax and other revenues available to
issuers of California Municipal Obligations may be affected from time to time by
economic, political and demographic conditions. In addition, constitutional or
statutory restrictions may limit an issuers power to raise revenues or increase
taxes. The availability of federal, state and local aid to issuers of California
Municipal Obligations may also affect their ability to meet their obligations.
Payments of principal and interest on revenue bonds will depend on the economic
condition of the facility or specific revenue source from whose revenues the
payments will be made, which in turn could be affected by economic, political
and demographic conditions in California or elsewhere. Any reduction in the
actual or perceived ability of an issuer of California Municipal Obligations to
meet its obligations (including a reduction in the rating of its outstanding
securities) would likely adversely affect the market value and marketability of
its obligations and could adversely affect the values of other California
Municipal Obligations as well.


     The State of California and other California public bodies have in the past
experienced financial difficulties and may continue to do so. Such difficulties
could have an adverse effect on the ability (or the perceived ability) of
issuers of certain California Municipal Obligations to meet their obligations on
such securities. If that were the case, the ratings of certain California
Municipal Obligations held by the Fund could be downgraded and the values of
such securities could decline. In recent years, the ratings of a number of
California Municipal Obligations have been downgraded in response to fiscal and
economic factors affecting their issuers.


     After suffering from a recession in the early 1990s, the California economy
has largely recovered. The State's financial condition improved markedly during
the 1995-1998 fiscal years. The State's cash position also improved in those
years, erasing deficits that were amassed during the late 1980s and early 1990s.
The State has enjoyed numerous upgrades of its credit ratings, with the most
recent coming from Standard & Poor's in August 1999. The Asian economic crisis,
which began in 1997, has had some dampening effects on the State's economic
growth (particularly in high technology manufacturing), however, and the pace of
growth in the State's economy is projected to slow.



     At various times over the past 21 years, California voters have approved
constitutional amendments that restrict State and/or local taxing or spending
authority. The most notable of these provisions is Proposition 13, approved in
1978, which limits ad valorem taxes on real property and restricts the ability
of taxing entities to increase real property and other taxes. In 1996,
California voters passed Proposition 218, which requires that local governments
obtain voter approval for many new and existing taxes and fees. These and other
future amendments could limit State and local governments' financial flexibility
and ultimately impair their ability to repay their debt obligations.



     For a more detailed description of these and other risks affecting
investments in California Municipal Obligations, see "Appendix B -- Special
Considerations Relating to California" in the Statement of Additional
Information.


     INTEREST RATE AND MARKET RISK.  The prices of Municipal Obligations tend to
fall as interest rates rise. Securities that have longer maturities tend to
fluctuate more in price in response to changes in market
                                       30
<PAGE>   33

interest rates. A decline in the prices of the Municipal Obligations owned by
the Fund would cause a decline in the net asset value of the Fund, which could
adversely affect the trading price of the Fund's Common Shares. This risk is
usually greater among Municipal Obligations with longer maturities or durations
and when inverse floaters are held by the Fund. Although the Fund has no policy
governing the maturities or durations of its investments, the Fund expects that
it will invest in a portfolio of longer-term securities. This means that the
Fund will be subject to greater market risk (other things being equal) than a
fund investing solely in shorter-term securities. Market risk is often greater
among certain types of income securities, such as zero-coupon bonds, which do
not make regular interest payments. As interest rates change, these bonds often
fluctuate in price more than bonds that make regular interest payments.
Conversely, the values of lower quality securities are less likely than
higher-quality securities to fluctuate inversely with changes in interest rates.
Because the Fund may invest in these types of income securities, it may be
subject to greater market risk than a fund that invests only in current interest
paying securities.


     Until such time as the Fund is fully invested (approximately two to three
months after the completion of the offering), the Fund may invest to a
significant extent in residual interest municipal bonds known as inverse
floaters. Compared to similar fixed-rate Municipal Obligations, the value of
inverse floaters will fluctuate to a greater extent in response to changes in
prevailing long-term interest rates. Moreover, the income earned on inverse
floaters will fluctuate in response to changes in prevailing short-term interest
rates. Thus, when inverse floaters are held by the Fund, an increase in short-
or long-term market interest rates will adversely affect the income received
from such bonds or the net asset value of the Fund's shares. To the extent that
the Fund has preferred shares outstanding, an increase in short-term rates would
also result in an increased cost of leverage, which would adversely affect the
Fund's income available for distribution. The Fund does not intend to invest in
inverse floaters once it becomes fully invested.



     Although insurance on the Municipal Obligations will reduce the credit risk
to which the Fund is subject by guaranteeing the timely payment of principal at
maturity and interest, it does not protect against fluctuations in the value of
the Municipal Obligations held by the Fund or the Fund's shares caused by
changes in interest rates or other factors.



     LOWER-RATED SECURITIES.  Municipal Obligations in the lower rating
categories of recognized Rating Agencies or that are unrated generally involve
greater risk of nonpayment of principal and interest than securities in higher
rating categories. The Fund may invest up to 20% of its total assets in
Municipal Obligations that, at the time of investment, are rated Ba or B by
Moody's or BB or B by Standard & Poor's, or considered to be of comparable
quality by another Rating Agency, or unrated Municipal Obligations judged to be
of comparable quality by the Advisor. The possibility of defaults by or
bankruptcies of issuers of these securities causes, in part, this principal and
interest risk and may result in nonpayment of principal or interest or
restructuring of the debt obligation and, possibly, a reduction in the Fund's
net asset value. The lower-rated Municipal Obligations in which the Fund may
invest are speculative to varying degrees. While such securities may have some
quality and protective characteristics, large uncertainties or major risk
exposures to adverse conditions are expected to outweigh such characteristics.
In addition, the values of lower-rated securities may be more susceptible to
real or perceived adverse economic conditions than higher-rated securities.
Municipal Obligations in the lower rating categories are regarded as
predominantly speculative in character. With respect to lower-rated or unrated
Municipal Obligations, the Fund will rely more on the judgment, analysis and
experience of the Advisor than for investment grade securities.


     In evaluating the creditworthiness of a Municipal Obligation, whether rated
or unrated, the Advisor may consider, among other things, the following factors:

     - the issuer's financial resources;

     - the issuer's sensitivity to economic conditions and trends;
                                       31
<PAGE>   34

     - any operating history of and the community support for the facility, if
       any, financed by the issue;

     - the ability of the issuer's management; and

     - regulatory matters.


     In addition, lower-rated or unrated Municipal Obligations are frequently
traded only in markets where the number of potential purchasers and sellers, if
any, is very limited. This may limit the availability of such securities for the
Fund to purchase and the ability of the Fund to sell such securities at their
fair value. The Advisor will attempt to reduce the risks of investing in lower
rated or unrated Municipal Obligations to the greatest extent practicable
through the use of credit analysis.


     INCOME RISK.  The income investors receive from the Fund is based primarily
on the interest it earns from its investments, which can vary widely over the
short and long-term. If interest rates drop, investors' income from the Fund
over time could drop as well if the Fund purchases securities paying lower rates
of interest. This risk is magnified when prevailing short-term interest rates
increase and the Fund holds inverse floaters.

     CALL RISK.  If interest rates fall, it is possible that issuers of callable
bonds with high interest coupons will "call" (or prepay) their bonds before
their maturity date. If a call were exercised by the issuer during a period of
declining interest rates, the Fund is likely to replace the called security with
a lower yielding security. If that were to happen, it would decrease the Fund's
dividends.


     CREDIT RISK.  Municipal Obligations are subject to the risk of non-payment
of scheduled interest and/or principal payments. Such nonpayment would result in
a reduction of income to the Fund, a reduction in the value of the security
experiencing nonpayment and a potential decrease in the net asset value of the
Fund. Securities rated below investment grade or unrated ("lower-rated")
securities of comparable quality are subject to the risk of an issuer's
inability to meet principal and interest payments on the obligations ("credit
risk") and may also be subject to price volatility due to such factors as
interest rate sensitivity, market perception of the creditworthiness of the
issuer and general market liquidity ("market risk"). The prices of lower-rated
securities are also more likely to react to real or perceived developments
affecting market and credit risk than are prices of investment grade or
comparable unrated securities, which react primarily to movements in the general
level of interest rates.



     As indicated above, the Fund may invest in Municipal Obligations rated
below investment grade and comparable unrated obligations. Such obligations are
commonly called "junk bonds" and will have speculative characteristics in
varying degrees. While such obligations may have some quality and protective
characteristics, these characteristics can be expected to be offset or
outweighed by uncertainties or major risk exposures to adverse conditions. The
Advisor seeks to minimize the risks of investing in below investment grade
securities through professional investment analysis, attention to current
developments in interest rates and economic conditions, and industry and
geographic diversification (if practicable). Because the Fund invests in
lower-rated and unrated Municipal Obligations, the achievement of the Fund's
goals is more dependent on the Advisor's ability than would be the case if the
Fund were investing solely in investment grade or comparable unrated Municipal
Obligations. In evaluating the credit quality of a particular security, whether
rated or unrated, the Advisor will normally take into consideration, among other
things, the financial resources of the issuer (or, as appropriate, of the
underlying source of funds for debt service), its sensitivity to economic
conditions and trends, any operating history of and the community support for
the facility financed by the issue, the ability of the issuer's management and
regulatory matters. The Advisor will attempt to reduce the risks of investing in
below investment grade and comparable unrated obligations through active
portfolio management, credit analysis and attention to current developments and
trends in the economy and the financial markets.


                                       32
<PAGE>   35

     Increases in interest rates and changes in the economy may adversely affect
the ability of issuers of lower rated Municipal Obligations to pay interest and
to repay principal, to meet projected financial goals and to obtain additional
financing. In the event that an issuer of securities held by the Fund
experiences difficulties in the timely payment of principal or interest and such
issuer seeks to restructure the terms of its borrowings, the Fund may incur
additional expenses and may determine to invest additional assets with respect
to such issuer or the project or projects to which the Fund's portfolio
securities relate. Further, the Fund may incur additional expenses to the extent
that it is required to seek recovery upon a default in the payment of interest
or the repayment of principal on its portfolio holdings, and the Fund may be
unable to obtain full recovery thereof.

     To the extent that there is no established retail market for some of the
lower rated Municipal Obligations in which the Fund may invest, trading in such
securities may be relatively inactive. The Advisor is responsible for
determining the net asset value of the Fund, subject to the supervision of the
Board of Trustees of the Fund. During periods of reduced market liquidity and in
the absence of readily available market quotations for lower rated Municipal
Obligations held in the Fund's portfolio, the ability of the Advisor to value
the Fund's securities becomes more difficult and the Advisor's use of judgment
may play a greater role in the valuation of the Fund's securities due to the
reduced availability of reliable objective data. The effects of adverse
publicity and investor perceptions may be more pronounced for securities for
which no established retail market exists as compared with the effects on
securities for which such a market does exist. Further, the Fund may have more
difficulty selling such securities in a timely manner and at their stated value
than would be the case for securities for which an established retail market
does exist.

     Changes in the credit quality of the issuers of Municipal Obligations held
by the Fund will affect the principal value of (and possibly the income earned
on) such obligations. In addition, the value of such securities are affected by
changes in general economic conditions and business conditions affecting the
relevant economic sectors. Changes by Rating Agencies in their ratings of a
security and in the ability of the issuer to make payments of principal and
interest may also affect the value of the Fund's investments. The amount of
information about the financial condition of an issuer of Municipal Obligations
may not be as extensive as that made available by corporations whose securities
are publicly traded.

     The Fund may invest in municipal leases and participations in municipal
leases. The obligation of the issuer to meet its obligations under such leases
is often subject to the appropriation by the appropriate legislative body, on an
annual or other basis, of funds for the payment of the obligations. Investments
in municipal leases are thus subject to the risk that the legislative body will
not make the necessary appropriation and the issuer will not otherwise be
willing or able to meet its obligations.


     PORTFOLIO INSURANCE RESTRICTIONS.  The Fund may be subject to certain
restrictions on investments imposed by guidelines of one or more insurance
companies which may issue portfolio insurance to the Fund. These guidelines may
impose asset coverage and Fund composition requirements that are more stringent
than those imposed on the Fund by the 1940 Act. Although the Fund does not
anticipate that these guidelines will impede the Advisor from managing the
Fund's portfolio in accordance with the Fund's investment objective and
policies, the Fund can offer no assurance to that effect.



     CONCENTRATION.  The Fund normally will invest 80% or more of its total
assets in California Municipal Obligations. This may make the Fund more
susceptible to adverse economic, political or regulatory occurrences affecting
California. As concentration increases, so does the potential for fluctuation of
the net asset value of Fund Common Shares.


     LIQUIDITY RISK.  At times, a substantial portion of the Fund's assets may
be invested in securities as to which the Fund, by itself or together with other
accounts managed by the Advisor and its affiliates, holds a major portion of all
of such securities. Under adverse market or economic conditions or in the event
of
                                       33
<PAGE>   36

adverse changes in the financial condition of the issuer, the Fund could find it
more difficult to sell such securities when the Advisor believes it is advisable
to do so or may be able to sell such securities only at prices lower than if
such securities were more widely held. Under such circumstances, it may also be
more difficult to determine the fair value of such securities for purposes of
computing the Fund's net asset value.


     The secondary market for some Municipal Obligations is less liquid than is
the secondary market for taxable debt obligations or other more widely traded
Municipal Obligations. No established resale market exists for certain Municipal
Obligations in which the Fund may invest. The market for Municipal Obligations
rated below investment grade is also likely to be less liquid than the market
for higher rated Municipal Obligations. As a result, the Fund may be unable to
dispose of these Municipal Obligations at times when it would otherwise wish to
do so at the prices at which they are valued.


     A secondary market may be subject to irregular trading activity, wide
bid/ask spreads and extended trade settlement periods. The Fund has no
limitation on the amount of its assets which may be invested in securities which
are not readily marketable or are subject to restrictions on resale. The risks
associated with illiquidity are particularly acute in situations where the
Fund's operations require cash, such as if the Fund tenders for its Common
Shares, and may result in the Fund borrowing to meet short-term cash
requirements.


     OPTIONS AND FUTURES TRANSACTIONS.  The Fund may seek to hedge its portfolio
against changes in interest rates using options, index options and futures and
financial futures contracts. The Fund's hedging transactions are designed to
manage the Fund's duration, but come at some cost. For example, the Fund must
pay for the option, and the price of the security may not in fact drop. In large
part, the success of the Fund's hedging activities depends on the Advisor's
ability to forecast movements in securities prices and interest rates, and the
Fund can offer no assurance that the Advisor will be able to forecast such
movements successfully. The Fund does not, however, intend to enter into options
and futures transactions for speculative purposes. The Fund is not required to
hedge its portfolio.


     CLOSED-END FUNDS.  The Fund is a closed-end investment company with no
history of operations and is designed primarily for long-term investors and not
as a trading vehicle. The shares of closed-end investment companies often trade
at a discount from their net asset value, and the Common Shares may likewise
trade at a discount from net asset value. The trading price of the Fund's Common
Shares may be less than the initial public offering price, creating a risk of
loss for investors purchasing in the initial public offering of the Common
Shares. This market price risk may be greater for investors who sell their
Common Shares within a relatively short period after completion of this
offering.

     NONDIVERSIFICATION.  The Fund has registered as a "nondiversified"
investment company under the 1940 Act so that, subject to its investment
restrictions and applicable federal income tax diversification requirements,
with respect to 50% of its total assets, it will be able to invest more than 5%
(but not more than 25%) of the value of its total assets in the obligations of
any single issuer. To the extent the Fund invests a relatively high percentage
of its assets in obligations of a limited number of issuers, the Fund will be
more susceptible than a more widely diversified investment company to any single
corporate, economic, political or regulatory occurrence.

     YEAR 2000 COMPLIANCE.  Like other investment companies, financial and
business organizations and individuals around the world, the Fund could be
adversely affected if the computer systems used by the Advisor, other service
providers and the issuers in which the Fund invests do not properly process and
calculate date-related information and data from and after January 1, 2000. This
is commonly known as the "Year 2000 Problem." The Advisor is taking steps that
it believes are reasonably designed to address the Year 2000 Problem, including
communicating with vendors who provide services, software and systems to the
Fund in an attempt to ensure that date-related information and data can be
properly processed and
                                       34
<PAGE>   37


calculated on and after January 1, 2000. Many Fund service providers and
vendors, including the Advisor, and the insurers who will provide portfolio
insurance for the Fund or insurance for specific Municipal Obligations in which
the Fund invests are in the process of making Year 2000 modifications to their
services, software and systems and believe that such modifications will be
completed on a timely basis prior to January 1, 2000. In addition, Year 2000
readiness information, if available, is one of the factors considered by the
Advisor in its assessment of the issuers in which the Fund invests. There can be
no assurance that these steps will be sufficient to avoid any adverse impact on
the Fund.


                           HOW THE FUND MANAGES RISK

INVESTMENT LIMITATIONS


     The Fund has adopted certain investment limitations designed to limit
investment risk and maintain portfolio diversification. These limitations are
fundamental and may not be changed without the approval of the holders of a
majority of the outstanding Common Shares and Municipal Preferred Shares, if
any, voting together as a single class, and the approval of the holders of a
majority of the Municipal Preferred Shares voting as a separate class. The Fund
may not invest more than 25% of total Fund assets in securities of issuers in
any one industry; except that this limitation does not apply to municipal bonds
backed by the assets and revenues of governments or political subdivisions of
governments.



     The Fund may become subject to guidelines which are more limiting than the
investment restrictions set forth above in order to obtain and maintain ratings
from Moody's or Standard & Poor's on the Municipal Preferred Shares that it
intends to issue. The Fund does not anticipate that such guidelines would have a
material adverse effect on the Fund's Common Shareholders or the Fund's ability
to achieve its investment objective. See "Investment Objective and
Policies -- Investment Restrictions" in the Statement of Additional Information
for information about these guidelines and additional fundamental and
nonfundamental investment policies of the Fund.


LIMITED ISSUANCE OF MUNICIPAL PREFERRED SHARES


     Under the 1940 Act, the Fund could issue Municipal Preferred Shares having
a total liquidation value (the liquidation of the original purchase price of the
shares plus any accrued and unpaid dividends) of up to one-half of the value of
the total net assets of the Fund. If the total liquidation value of the
Municipal Preferred Shares was ever more than one-half of the value of the
Fund's total net assets, the Fund would not be able to declare dividends on the
Common Shares until the liquidation value, as a percentage of the Fund's assets,
was reduced. The Fund intends to issue Municipal Preferred Shares representing
about 38% of the Fund's total capital at the time of issuance, if the Fund sells
all the Common Shares offered in this prospectus and all the Municipal Preferred
Shares which may be offered in the future through a different prospectus. This
higher than required margin of net asset value provides a cushion against later
fluctuations in the value of the Fund's portfolio and will subject Common
Shareholders to less income and net asset value volatility than if the Fund were
more leveraged. The Fund intends to purchase or redeem Municipal Preferred
Shares, if necessary, to keep the liquidation value of the Municipal Preferred
Shares below one-half of the value of the Fund's total net assets.


MANAGEMENT OF INVESTMENT PORTFOLIO AND CAPITAL STRUCTURE TO LIMIT LEVERAGE RISK

     The Fund may take certain actions if short-term rates increase or market
conditions otherwise change (or the Fund anticipates such an increase or change)
and the Fund's leverage begins (or is expected) to adversely affect Common
Shareholders. In order to attempt to offset such a negative impact of leverage
on

                                       35
<PAGE>   38

Common Shareholders, the Fund may shorten the average maturity of its investment
portfolio (by investing in short-term, high quality securities) or may extend
the maturity of any outstanding Municipal Preferred Shares. The Fund may also
attempt to reduce the leverage by redeeming or otherwise purchasing Municipal
Preferred Shares. As explained above under "Use of Leverage and Related Risks,"
the success of any such attempt to limit leverage risk depends on the Advisor's
ability to accurately predict interest rate or other market changes. Because of
the difficulty of making such predictions, the Fund may never attempt to manage
its capital structure in the manner described above.

     If market conditions suggest that additional leverage would be beneficial,
the Fund may sell previously unissued Municipal Preferred Shares or Municipal
Preferred Shares that the Fund previously issued but later repurchased.

HEDGING STRATEGIES


     The Fund may use various investment strategies designed to manage the
"duration" of the Fund's portfolio. The duration of a bond measures the
sensitivity of the bond's price to changes in interest rates. Generally, the
shorter the duration of the Fund's portfolio, the less its net asset value will
change when interest rates change. These hedging strategies include using
financial futures contracts, including index futures, options on financial
futures or options based on either an index of long-term municipal securities or
on taxable debt securities whose prices, in the opinion of the Advisor,
correlate with the prices of the Fund's investments. The Fund may use
over-the-counter options, which are considered to be less marketable than
options traded on an exchange or board of trade. Successful implementation of
most hedging strategies would generate taxable income.


                                       36
<PAGE>   39

                             MANAGEMENT OF THE FUND

TRUSTEES AND OFFICERS


     The Board of Trustees is responsible for the general supervision of the
Fund, including general supervision of the duties performed by the Advisor under
its Management Agreement (as defined below) with the Fund. There are 13 trustees
of the Fund, six of whom are "interested persons" (as defined in the 1940 Act).
The names and addresses of the trustees and officers of the Fund and their
principal occupations and other affiliations during the past five years are set
forth under "Management of the Fund" in the Statement of Additional Information.


THE ADVISOR


     Colonial Management Associates, Inc. (the "Advisor") is a Massachusetts
corporation having its principal offices at One Financial Center, Boston,
Massachusetts 02111. The Advisor is a wholly owned subsidiary of Liberty Funds
Group LLC ("Liberty Funds Group") and both Liberty Funds Group and the Advisor
are indirect, majority-owned subsidiaries of Liberty Mutual Insurance Company
("Liberty"). The Advisor has been an investment advisor since 1931. As of August
31, 1999, the Advisor serves as investment advisor, sub-advisor or administrator
for 62 open-end and 7 closed-end management investment company portfolios and
manages over $20.7 billion in assets.



     The Advisor's mutual funds and institutional investment advisory businesses
are part of a larger business unit that includes several separate legal entities
known as Liberty Funds Group LLC ("LFG"). LFG includes certain affiliates of the
Advisor, principally Stein Roe & Farnham Incorporated ("Stein Roe"). The Advisor
and the LFG business unit are managed by a single management team. The Advisor,
Stein Roe and the other LFG entities also share personnel, facilities and
systems that may be used in providing administrative or operational services to
the Fund. The Advisor is a registered investment advisor. The Advisor, Stein Roe
and the other entities that make up LFG are subsidiaries of Liberty Financial
Companies, Inc.



     William C. Loring and Brian M. Hartford, each a Senior Vice President at
the Advisor, will manage the Fund. Messrs. Loring and Hartford have managed
various other Colonial tax-exempt funds since 1986 and 1993, respectively.


MANAGEMENT AGREEMENT

     The Management Agreement between the Advisor and the Fund (the "Management
Agreement") provides that, subject to the direction of the Board of Trustees of
the Fund and the applicable provisions of the 1940 Act, the Advisor is
responsible for the actual management of the Fund's portfolio. The
responsibility for making decisions to buy, sell or hold a particular investment
rests with the Advisor, subject to review by the Board of Trustees of the Fund
and compliance with the applicable provisions of the 1940 Act.

     The Advisor provides the Fund with accounting, bookkeeping and pricing
services and other services and office facilities (the expenses of which are
borne by the Fund as specified below), except to the extent these services are
provided by an administrator or an accounting firm hired by the Fund.


     Under the Management Agreement with the Fund, the Advisor receives a
monthly advisory fee at the annual rate of 0.65% of the average weekly net
assets of the Fund (including net assets, if any, attributable to Municipal
Preferred Shares).


                                       37
<PAGE>   40


     The Advisor places all orders for the purchase and sale of portfolio
securities. In selecting broker-dealers, the Advisor may consider research and
brokerage services furnished by such broker-dealers to the Advisor and its
affiliates. In recognition of the research and brokerage services provided, the
Advisor may cause the Fund to pay the selected broker-dealer a higher commission
than would have been charged by another broker-dealer not providing such
services. Subject to seeking best execution, the Advisor may consider sales of
shares of certain other funds distributed by affiliates of Liberty in selecting
broker-dealers for portfolio security transactions.



     In addition to the fee of the Advisor, the Fund pays all other costs and
expenses of its operations, including compensation of its trustees (other than
those affiliated with the Advisor), custodian, registrar, transfer and dividend
disbursing expenses, legal fees, expenses of independent auditors, expenses of
repurchasing shares, shareholder reports, expenses of preparing, printing and
distributing notices, proxy statements and reports to governmental agencies, and
taxes, if any.



     For the first ten years of the Fund's operation, the Advisor has agreed to
waive the Fund's fees and expenses in the amounts, and for the time periods, set
forth below:



<TABLE>
<CAPTION>
                             PERCENTAGE WAIVED
YEAR ENDING             (AS A PERCENTAGE OF AVERAGE
NOVEMBER 30,             WEEKLY TOTAL NET ASSETS)*
- ------------            ----------------------------
<S>                     <C>
2000**................              0.30%
2001..................              0.30%
2002..................              0.30%
2003..................              0.30%
2004..................              0.30%
</TABLE>



<TABLE>
<CAPTION>
                             PERCENTAGE WAIVED
YEAR ENDING             (AS A PERCENTAGE OF AVERAGE
NOVEMBER 30,             WEEKLY TOTAL NET ASSETS)*
- ------------            ----------------------------
<S>                     <C>
2005..................              0.25%
2006..................              0.20%
2007..................              0.15%
2008..................              0.10%
2009..................              0.05%
</TABLE>


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

 * Including net assets attributable to Municipal Preferred Shares.



** From the commencement of operations.



     The Advisor has not agreed to waive any portion of the Fund's fees and
expenses beyond November 30, 2009.


                                NET ASSET VALUE

     Net asset value of the Fund will be determined no less frequently than as
of the close of regular trading on the New York Stock Exchange (the "Exchange")
(generally 4:00 p.m. Eastern time) on the last Business Day of each week
(generally Friday), and at such other times as the Fund may authorize. The net
asset value of the Fund equals the value of the Fund's assets less the Fund's
liabilities. Portfolio securities for which market quotations are readily
available are valued at current market value. Short-term investments maturing in
60 days or less are valued at amortized cost when the Advisor determines,
pursuant to procedures adopted by the Board of Trustees, that such cost
approximates current market value. All other securities and assets are valued at
their fair value following procedures adopted by the Board of Trustees.

     When price quotes are not readily available (which is usually the case for
Municipal Obligations), the pricing service establishes a fair market value
based on prices of comparable Municipal Obligations. All valuations are subject
to review by the Fund's Board of Trustees or its delegate, the Advisor.

                                       38
<PAGE>   41

                                 DISTRIBUTIONS

     The Fund intends to make monthly distributions of its net tax-exempt
interest income, after payment of any dividends on any outstanding preferred
shares. The Fund will distribute annually any taxable income and capital gain.
Distributions to Common Shareholders cannot be assured, and the amount of each
monthly distribution is likely to vary. Initial distributions to Common
Shareholders are expected to be paid approximately 60 days after the completion
of this offering. While there are any preferred shares outstanding, the Fund
might not be permitted to declare any cash dividend or other distributions on
its Common Shares in certain circumstances. See "Description of Shares."


     If any of the dividends on the Preferred Shares is determined to be from
taxable ordinary income or capital gain, the terms of the Preferred Shares may
require the Fund to pay an extra amount of dividends on the Preferred Shares in
an amount sufficient to make each holder of the Preferred Shares whole (on an
after-tax basis) with respect to the estimated federal income tax which the
holder would be required to pay on the taxable distributions ("gross-up
payments"), in which case the amount of any dividends payable to Common
Shareholders would be reduced by the amount of any such gross-up payments. For
information regarding important federal income tax consequences of distributions
to Common Shareholders, see "Tax Matters."


                           DIVIDEND REINVESTMENT PLAN


     Pursuant to the Fund's Dividend Reinvestment Plan (the "Plan"), all holders
of Common Shares whose shares are registered in their own names will have all
distributions reinvested automatically in additional shares of the Fund by
EquiServe (the "Plan Agent"), as agent under the Plan, unless a shareholder
elects to receive cash. An election to receive cash may be revoked or reinstated
at the option of the shareholder. Shareholders whose shares are held in the name
of a broker or nominee will have distributions reinvested automatically by the
broker or nominee in additional shares under the Plan, unless the service is not
provided by the broker or nominee, or unless the shareholder elects to receive
distributions in cash. If the service is not available, such distributions will
be paid in cash. Shareholders whose shares are held in the name of a broker or
nominee should contact the broker or nominee for details. All distributions to
investors who elect not to participate (or whose broker or nominee elects not to
participate) in the Plan will be paid by check mailed directly to the record
holder by the Plan Agent, as dividend paying agent.


     The Plan Agent will furnish each person who buys shares in the offering
with written information relating to the Plan. Included in such information will
be procedures for electing to receive distributions in cash (or, in the case of
shares held in the name of a broker or nominee who does not participate in the
Plan, procedures for having such shares registered in the name of the
shareholder so that such shareholder may participate in the Plan).


     If the Trustees of the Fund declare a dividend (including a capital gain
dividend) payable either in shares or in cash, as holders of shares may have
elected, then nonparticipants in the Plan will receive cash and participants in
the Plan will receive the equivalent in shares valued as set forth below.
Whenever a market price is equal to or exceeds net asset value at the time
shares are valued for the purpose of determining the number of shares equivalent
to the distribution, participants will be issued shares at the net asset value
most recently determined as provided under "Net Asset Value" in this prospectus
and the Statement of Additional Information, but in no event less than 95% of
the market price. If the net asset value of the shares at such time exceeds the
market price of shares at such time, or if the Fund should declare a dividend
(including a capital gain dividend) payable only in cash, the Plan Agent will,
as agent for the participants, use the cash that the shareholders would have
received as a dividend to buy shares in the open market, the Exchange or
elsewhere, for the participants' accounts. If, before the Plan Agent has

                                       39
<PAGE>   42

completed its purchases, the market price exceeds the net asset value of the
shares, the average per share purchase price paid by the Plan Agent may exceed
the net asset value of the shares, resulting in the acquisition of fewer shares
than if the dividend (including a capital gain dividend) had been paid in shares
issued by the Fund. The Plan Agent will apply all cash received as a dividend
(including a capital gain dividend) to purchase shares on the open market as
soon as practicable after the payment date of such dividend, but in no event
later than 30 days after such date, except where necessary to comply with
applicable provisions of the federal securities laws.

     The Plan Agent maintains all shareholder accounts in the Plan and furnishes
written confirmations of all transactions in such accounts, including
information needed by shareholders for personal and tax records. Shares in the
account of each Plan participant will be held by the Plan Agent in
noncertificated form in the name of the participant, and each shareholder's
proxy will include those shares purchased pursuant to the Plan.

     There is no charge to participants for reinvesting dividends (including
capital gain dividends). The Plan Agent's fees for handling the reinvestment of
dividends (including capital gain dividends) will be paid by the Fund. There
will be no brokerage charges with respect to shares issued directly by the Fund
as a result of dividends or capital gains distributions payable either in stock
or in cash. However, each participant will pay a pro rata share of brokerage
commissions incurred with respect to the Plan Agent's open market purchases in
connection with the reinvestment of dividends (including capital gain
dividends).

     The automatic reinvestment of dividends (including capital gain dividends)
will not relieve participants of any income tax which may be payable on such
dividends. The amount of the dividend for tax purposes may vary depending on
whether the Fund issues new Common Shares or purchases them on the open market.
For additional information, please see "Tax Matters."


     Experience under the Plan may indicate that changes are desirable.
Accordingly, the Fund reserves the right to amend or terminate the Plan as
applied to any dividend (including a capital gain dividend) paid after written
notice of the change sent to the members of the Plan at least 30 days before the
record date for such dividend. All correspondence concerning the Plan should be
directed to the Plan Agent at 150 Royall Street, Canton, Massachusetts 02021.


                                       40
<PAGE>   43

                             DESCRIPTION OF SHARES

COMMON SHARES

     The Fund's Declaration of Trust authorizes the issuance of an unlimited
number of Common Shares, no par value per share. All Common Shares have equal
rights to the payment of dividends and the distribution of assets upon
liquidation. Common Shares will, when issued, be fully paid and, subject to
matters discussed in "Shareholder Liability" in the Statement of Additional
Information, nonassessable, and will have no pre-emptive or conversion rights or
rights to cumulative voting. Whenever Municipal Preferred Shares are
outstanding, Common Shareholders will not be entitled to receive any
distributions from the Fund unless all accrued dividends on Municipal Preferred
Shares have been paid, and unless asset coverage (as defined in the 1940 Act)
with respect to Municipal Preferred Shares would be at least 200% after giving
effect to the distributions. See "Municipal Preferred Shares" below.

     We have applied for listing of the Common Shares on the New York Stock
Exchange subject to notice of issuance. The Fund intends to hold annual meetings
of shareholders so long as the Common Shares are listed on a national securities
exchange and such meetings are required as a condition to such listing.


     The Fund's net asset value per share generally increases when interest
rates decline, and decreases when interest rates rise, and these changes are
likely to be greater because the Fund intends to have a leveraged capital
structure. Net asset value will be reduced immediately following the offering by
the amount of the sales load and organization and offering expenses paid by the
Fund. The Advisor has agreed to pay (i) all organizational expenses and (ii)
offering costs (other than sales loads) that exceed $0.03 per Common Share. See
"Use of Proceeds."


     Unlike open-end funds, closed-end funds like the Fund do not continuously
offer shares and do not provide daily redemptions. Rather, if a shareholder
determines to buy additional Common Shares or sell shares already held, the
shareholder may do so by trading on the New York Stock Exchange, through a
broker or otherwise. Shares of closed-end investment companies may frequently
trade at prices lower than net asset value. Shares of closed-end investment
companies like the Fund that invest predominantly in municipal bonds have during
some periods traded at prices higher than net asset value and during other
periods have traded at prices lower than net asset value. Because the market
value of the Common Shares may be influenced by such factors as dividend levels
(which are in turn affected by expenses), call protection, dividend stability,
portfolio credit quality, net asset value, relative demand for and supply of
such shares in the market, general market and economic conditions, and other
factors beyond the control of the Fund, the Fund cannot assure you that Common
Shares will trade at a price equal to or higher than net asset value in the
future. The Common Shares are designed primarily for long-term investors, and
investors in the Common Shares should not view the Fund as a vehicle for trading
purposes. See "Use of Leverage and Related Risks" and "Additional Risk
Considerations" and the Statement of Additional Information under "Repurchase of
Fund Shares; Conversion to Open-End Fund."

MUNICIPAL PREFERRED SHARES


     The Declaration of Trust provides that the Fund may authorize separate
classes of shares of beneficial interest. The By-Laws of the Fund will, at the
time they are amended and restated, authorize the issuance of preferred shares
of beneficial interest, no par value per share, which may be issued from time to
time in such series and with such designations, preferences and other rights,
qualifications, limitations and restrictions as are determined in a resolution
of the Board of Trustees ("Preferred Shares"). Shares of Municipal Preferred
carry one vote per share. Shares of Municipal Preferred will, when issued, be
fully paid


                                       41
<PAGE>   44

and, subject to matters discussed in "Shareholder Liability" in the Statement of
Additional Information, nonassessable, and will have no pre-emptive or
conversion rights or rights to cumulative voting.


     The Fund's Board of Trustees has indicated its intention to authorize an
offering of Municipal Preferred Shares (representing approximately 38% of the
Fund's capital immediately after the time the Municipal Preferred Shares are
issued) approximately one to three months after completion of the offering of
Common Shares. Any such decision is subject to market conditions and to the
Board's continuing belief that leveraging the Fund's capital structure through
the issuance of Municipal Preferred Shares is likely to achieve the benefits to
the Common Shareholders described in this prospectus. Although the terms of the
Municipal Preferred Shares will be determined by the Board of Trustees (subject
to applicable law and the Fund's Declaration) if and when it authorizes a
Municipal Preferred Shares offering, the Board has determined that the Municipal
Preferred Shares, at least initially, would likely pay cumulative dividends at
rates determined over relatively shorter-term periods (such as 7 days), by
providing for the periodic redetermination of the dividend rate through an
auction or remarketing procedure. The Board of Trustees has indicated that the
preference on distribution, liquidation preference, voting rights and redemption
provisions of the Municipal Preferred Shares will likely be as stated below.



     LIMITED ISSUANCE OF MUNICIPAL PREFERRED SHARES.  Under the 1940 Act, the
Fund could issue Municipal Preferred Shares with an aggregate liquidation value
of up to one-half of the value of the Fund's total net assets, measured
immediately after issuance of the Municipal Preferred Shares. "Liquidation
value" means the original purchase price of the shares being liquidated plus any
accrued and unpaid dividends. In addition, the Fund is not permitted to declare
any cash dividend or other distribution on its Common Shares unless the
liquidation value of the Municipal Preferred Shares is less than one-half of the
value of the Fund's total net assets (determined after deducting the amount of
such dividend or distribution) immediately after the distribution. If the Fund
sells all the Common Shares and Municipal Preferred Shares discussed in this
prospectus, the liquidation value of the Municipal Preferred Shares is expected
to be approximately 38% of the value of the Fund's total net assets. The Fund
intends to purchase or redeem Municipal Preferred Shares, if necessary, to keep
that fraction below one-half.


     DISTRIBUTION PREFERENCE.  The Municipal Preferred Shares have complete
priority over the Common Shares as to distribution of assets.

     LIQUIDATION PREFERENCE.  In the event of any voluntary or involuntary
liquidation, dissolution or winding up of the affairs of the Fund, holders of
Municipal Preferred Shares will be entitled to receive a preferential
liquidating distribution (expected to equal the original purchase price per
share plus accumulated and unpaid dividends thereon, whether or not earned or
declared) before any distribution of assets is made to holders of Common Shares.


     VOTING RIGHTS.  Municipal Preferred Shares are required to be voting shares
and to have equal voting rights with Common Shares. Except as otherwise
indicated in this prospectus or the Statement of Additional Information and
except as otherwise required by applicable law, holders of Municipal Preferred
Shares will vote together with Common Shareholders as a single class.



     Holders of Municipal Preferred Shares, voting as a separate class, will be
entitled to elect two of the Fund's trustees. The remaining trustees will be
elected by Common Shareholders and holders of Municipal Preferred Shares, voting
together as a single class. In the unlikely event that two full years of accrued
dividends are unpaid on the Municipal Preferred Shares, the holders of all
outstanding Municipal Preferred Shares, voting as a separate class, will be
entitled to elect a majority of the Fund's trustees until all dividends in
arrears have been paid or declared and set apart for payment. In order for the
Fund to take certain actions or enter into certain transactions (such as
authorizing, creating or issuing additional Municipal Preferred Shares or other
preferred shares ranking prior to or on parity with the Municipal

                                       42
<PAGE>   45


Preferred Shares or amending, altering or repealing the provisions of the
Declaration of Trust or By-Laws of the Fund so as to materially affect the
preferences, rights or powers of the Municipal Preferred Shares), a separate
class vote of holders of Municipal Preferred Shares will be required, in
addition to the single class vote of the holders of Municipal Preferred Shares
and Common Shares. See the Statement of Additional Information under
"Description of Shares -- Municipal Preferred Shares -- Voting Rights."


     REDEMPTION, PURCHASE AND SALE OF MUNICIPAL PREFERRED SHARES. The terms of
the Municipal Preferred Shares may provide that they are redeemable at certain
times, in whole or in part, at the original purchase price per share plus
accumulated dividends. The terms may also state that the Fund may tender for or
purchase Municipal Preferred Shares and resell any shares so tendered. Any
redemption or purchase of Municipal Preferred Shares by the Fund will reduce the
leverage applicable to Common Shares, while any resale of such Municipal
Preferred Shares by the Fund will increase such leverage. See "Use of Leverage
and Related Risks."

     The discussion above describes the Board of Trustees' present intention
with respect to a possible offering of Municipal Preferred Shares. If the Board
of Trustees determines to authorize such an offering, the terms of the Municipal
Preferred Shares may be the same as, or different from, the terms described
above, subject to applicable law and the Fund's Declaration.

                 CERTAIN PROVISIONS IN THE DECLARATION OF TRUST

     The Board of Trustees is divided into three classes, each having a term of
three years. Each year the term of one class expires. This may make it more
difficult to change the Fund's management and could have the effect of depriving
shareholders of an opportunity to sell their Common Shares at a premium over
prevailing market prices by discouraging a third party from seeking to obtain
control of the Fund in a tender offer or similar transaction. In addition, the
Declaration of Trust provides that the affirmative vote or consent of two-thirds
of the outstanding Common Shares and any preferred shares of the Fund (including
Municipal Preferred Shares), voting together as a single class, and of the
Preferred Shares (including Municipal Preferred Shares) voting together as a
single class, would be required to authorize the conversion of the Fund from a
closed-end to an open-end investment company. This two-thirds vote requirement
is higher than the vote required under the 1940 Act.

     Please refer to the Declaration of Trust, a copy of which is on file with
the Commission, for the full text of these provisions.

            REPURCHASE OF COMMON SHARES; CONVERSION TO OPEN-END FUND

REPURCHASE OF SHARES

     Shares of closed-end investment companies frequently trade at a discount
from net asset value. The Board of Trustees regularly monitors the relationship
between the market price and net asset value of the Common Shares. If the Common
Shares were to trade at a substantial discount to net asset value for an
extended period of time, the Board may consider the repurchase of its Common
Shares on the open market or the making of tender offers for such shares. No
assurances can be given that such actions will be taken. Subject to its
investment restrictions, the Fund may borrow money to finance the repurchase of
shares, subject to compliance with the asset coverage requirements of the 1940
Act and the other limitations described under "Use of Leverage and Related
Risks." Shares may not be repurchased, however, (i) if applicable asset coverage
requirements under the 1940 Act (i.e., 200% with respect to any preferred shares
of the Fund, including Municipal Preferred Shares) are not met or would not be
met following such repurchase or (ii) if otherwise prohibited by applicable law.

                                       43
<PAGE>   46

     There can be no assurance that repurchases or tenders, if they were to
occur, would result in the Common Shares trading at a price which is equal to
their net asset value. The Fund anticipates that the market price of the Common
Shares will usually vary from net asset value. The market price of the Common
Shares will be determined, among other things, by the relative demand for and
supply of the Common Shares in the market, the Fund's investment performance,
the Fund's dividends and yield and investor perception of the Fund's overall
attractiveness as an investment as compared with other investment alternatives.
It should be recognized that any such acquisitions of Common Shares would
decrease the total assets of the Fund and therefore have the effect of
increasing the Fund's expense ratio. Furthermore, any interest on borrowings to
finance share repurchase transactions would reduce the Fund's net income.

CONVERSION TO OPEN-END STATUS

     The Fund's Board of Trustees may from time to time consider submitting to
the holders of the shares of beneficial interest of the Fund a proposal to
convert the Fund to an open-end investment company. In determining whether to
exercise its discretion to submit this issue to shareholders, the Board of
Trustees would consider all factors then relevant, including the relationship of
the market price of the Common Shares to net asset value, the extent to which
the Fund's capital structure is leveraged and the possibility of re-leveraging,
the spread, if any, between yields on securities in the Fund's portfolio and
interest and dividend charges on preferred shares issued by the Fund and general
market and economic conditions. In addition to any vote required by
Massachusetts law, conversion of the Fund to an open-end investment company
would require the affirmative vote of two thirds of the Common Shares and any
preferred shares of the Fund (including Municipal Preferred Shares), voting
together as a single class, and of the preferred shares (including Municipal
Preferred Shares) voting together as a single class, entitled to be voted on the
matter. This two-thirds vote requirement is higher than the vote required under
the 1940 Act. Shareholders of an open-end investment company may require the
company to redeem their shares at any time (except in certain circumstances as
authorized by or under the 1940 Act) at their net asset value, less such
redemption charges, if any, as might be in effect at the time of redemption. If
the Fund converted to an open-end investment company, it would be required to
redeem all Municipal Preferred Shares then outstanding at the Municipal
Preferred Shares redemption price. In addition, the Fund could be required to
liquidate portfolio securities to meet required and requested redemptions, and
its Common Shares would no longer be listed on the Exchange. No assurance can be
given that the Board will, at any time in the future, decide to submit a
proposal to convert to open-end status to the shareholders of the Fund.

                                  TAX MATTERS

FEDERAL INCOME TAX MATTERS


     The following federal tax discussion reflects provisions of the Code,
existing Treasury Regulations, rulings published by the Internal Revenue
Service, and other applicable authority, as of the date of this prospectus.
These authorities are subject to change by legislative or administrative action.
The discussions below and in the Statement of Additional Information are only a
summary of some of the important tax considerations generally applicable to
investments in the Common Shares of the Fund. There may be other important tax
considerations applicable to particular investors. Because tax laws are complex
and often change, you should consult your tax advisor about the tax consequences
of an investment in the Fund.


     The Fund primarily invests in municipal bonds issued by the State of
California or its political subdivisions, agencies, authorities and
instrumentalities, by other states (including the District of Columbia), cities
and local authorities and certain possessions and territories of the United
States (such as Puerto Rico or Guam) or in municipal bonds whose income is
otherwise exempt from regular federal income tax. Consequently, the regular
monthly dividends you receive (whether paid in cash or reinvested in additional
                                       44
<PAGE>   47


Common Shares) will generally be exempt from regular federal income taxes. A
portion of these dividends, however, will likely be subject to the federal AMT.
If you are subject to the federal AMT, a portion of your regular monthly
dividends may be taxable. Furthermore, if you receive Social Security or
Railroad Retirement benefits, you should be aware that tax-free income is taken
into account in calculating the amount of these benefits that may be subject to
federal income tax.



     For corporate shareholders, interest on all tax-exempt Municipal
Obligations is taken into account in the computation of income subject to the
federal AMT, and dividends from the Fund will not qualify for the dividends
received deduction.



     Although the Fund does not seek to realize taxable income or capital gains,
the Fund may realize and distribute taxable income or capital gains from time to
time as a result of the Fund's normal investment activities. The Fund will
distribute at least annually any taxable income or capital gains. Distributions
of any taxable net investment income and net short-term capital gain are taxable
as ordinary income. Distributions of the Fund's net capital gain (i.e., the
excess of the Fund's net long-term capital gain over net short-term capital
loss) ("capital gain dividends"), if any, are taxable to you as long-term
capital gain, regardless of how long you have held your Common Shares. Because
Fund expenses attributable to earning tax-exempt income do not reduce the Fund's
current earnings and profits, a portion of any distribution in excess of the
Fund's net tax-exempt and taxable income may be considered as paid out of the
Fund's earnings and profits and may therefore be treated as a taxable dividend
(even though that portion represents a return of the Fund's capital).
Distributions, if any, in excess of the Fund's earnings and profits will first
reduce the adjusted tax basis of your Common Shares and, after that basis has
been reduced to zero, will constitute capital gains to you (assuming that you
held your Common Shares as a capital asset).


     Distributions of taxable income or capital gains will be taxable to you
whether received in cash or in Common Shares under the Dividend Reinvestment
Plan. In the latter case, you will be treated as receiving an amount equal to
the cash used to purchase such shares (where the Plan Agent purchases shares on
the open market on behalf of Plan participants) or generally the fair market
value of the Common Shares on the date of issuance of such Shares (where the
Fund issues shares to Plan participants).

     Distributions of taxable income or capital gains are taxable to you even if
they are paid from income or gains earned by the Fund prior to your investment
(and thus were included in the price that you paid).

     Each year, you will receive a year-end statement that describes the tax
status of dividends paid to you during the preceding year, including the source
of net tax-exempt interest income by state and the portion of income that is
subject to the federal AMT. You will receive this statement from the firm where
you purchased your Common Shares if you hold your investment in street name; the
Fund will send you this statement if you hold your shares in registered form.

     If you sell your Common Shares, you will generally recognize gain or loss
in an amount equal to the difference between your adjusted tax basis in the
Common Shares and the amount received. If you hold your Common Shares as capital
assets, the gain or loss will be a capital gain or loss. The maximum tax rate
applicable to net capital gains recognized by individuals and other noncorporate
taxpayers is (i) the same as the maximum ordinary income tax rate for gains
recognized on the sale of capital assets held for one year or less or (ii) 20%
for gains recognized on the sale of capital assets held for more than one year
(as well as capital gain dividends).

     Any loss recognized on a disposition of Common Shares held for six months
or less will be disallowed to the extent of any exempt interest dividends
received with respect to those Common Shares. In addition, any loss not already
disallowed as provided in the preceding sentence will be treated as a long-term
capital loss to the extent of any capital gain dividends received with respect
to those Common Shares. For purposes

                                       45
<PAGE>   48

of determining whether Common Shares have been held for six months or less, the
holding period is suspended for any periods during which your risk of loss is
diminished as a result of holding one or more other positions in substantially
similar or related property, or through certain options or short sales. In
addition, any loss realized on a sale or exchange of Common Shares will be
disallowed to the extent that you replace the disposed of Common Shares with
other Common Shares within a period of 61 days beginning 30 days before and
ending 30 days after the date of disposition, which could, for example, occur if
you are a participant in the Dividend Reinvestment Plan. In such an event, your
basis in the replacement Common Shares will be adjusted to reflect the
disallowed loss.

     If you borrow money to buy Fund shares, you may not deduct the interest on
that loan. Under I.R.S. rules, Fund shares may be treated as having been bought
with borrowed money even if the purchase of the Fund shares cannot be traced
directly to borrowed money.

     A Fund's investments in Municipal Obligations issued at a discount and
certain other portfolio positions will require the Fund to accrue and distribute
income and gains not yet received. In such cases, a Fund may be required to sell
assets (including when it is not advantageous to do so) to generate the cash
necessary to distribute as dividends to its shareholders all of its income and
gains and therefore eliminate any tax liability at the Fund level.


     In order to avoid corporate taxation of its earnings and to pay tax-free
dividends, the Fund intends to qualify each year as a regulated investment
company under Subchapter M of the Internal Revenue Code of 1986, as amended, by
meeting certain I.R.S. requirements that govern the Fund's sources of income and
diversification of assets, and distributing substantially all of its earnings to
shareholders. In particular, in order for the Fund to pay tax-free dividends, at
least 50% of the value of the Fund's total assets must consist of tax-exempt
obligations. If the Fund fails to qualify for treatment as a regulated
investment company in any taxable year, the Fund will be subject to tax on its
income at corporate rates, and could be required to recognize unrealized gains,
pay substantial taxes and interest and to make substantial distributions before
requalifying as a regulated investment company that is accorded special tax
treatment.


     The Fund may be required to withhold 31% of certain of your dividends if
you have not provided the Fund with your correct taxpayer identification number
(normally your Social Security number), or if you are otherwise subject to
back-up withholding.

STATE AND LOCAL TAX MATTERS

     The exemption from federal income tax for exempt-interest dividends does
not necessarily result in exemption for such dividends under the income or other
tax laws of any state or local taxing authority. However, the Fund intends to
invest substantially all of its total assets (at least 80%) in debt obligations,
the interest on which is exempt from California state personal income taxes. See
Appendix B to the Statement of Additional Information -- "Special Considerations
Relating to California." In addition, some other states also exempt from state
income tax that portion of any exempt-interest dividend that is derived from
interest received by a regulated investment company on its holdings of
securities of that state and its political subdivisions and instrumentalities.

     The Fund will report annually to its shareholders the percentage of
interest income earned by the Fund during the preceding year on tax-exempt
obligations indicating, on a state-by-state basis, the source of such income.
Shareholders of the Fund are advised to consult with their own tax advisors
about state and local tax matters.

     Please refer to the Statement of Additional Information for more detailed
information. You are urged to consult your tax advisor.

                                       46
<PAGE>   49

                                  UNDERWRITING

     Subject to the terms and conditions stated in the underwriting agreement
dated the date hereof, each Underwriter named below has severally agreed to
purchase, and the Fund has agreed to sell to such Underwriter, the number of
Common Shares set forth opposite the name of such Underwriter.


<TABLE>
<CAPTION>
                                                               NUMBER
NAME                                                          OF SHARES
- ----                                                          ---------
<S>                                                           <C>
Salomon Smith Barney Inc. ..................................
A.G. Edwards & Sons, Inc. ..................................
PaineWebber Incorporated....................................
Sutro & Co. Incorporated....................................
Wedbush Morgan Securities ..................................
          Total.............................................
                                                              ========
</TABLE>


     The underwriting agreement provides that the obligations of the several
Underwriters to purchase the Common Shares included in this offering are subject
to approval of certain legal matters by counsel and to certain other conditions.
The Underwriters are obligated to purchase all the Common Shares (other than
those covered by the over-allotment option described below) if they purchase any
of the Common Shares. The representatives have advised the Fund that the
Underwriters do not intend to confirm any sales to any accounts over which they
exercise discretionary authority.


     The Underwriters, for whom Salomon Smith Barney Inc. is acting as
representative, propose to offer some of the Common Shares directly to the
public at the public offering price set forth on the cover page of this
prospectus and some of the Common Shares to certain dealers at the public
offering price less a concession not in excess of $     per Common Share. The
Underwriters may allow, and such dealers may reallow, a concession not in excess
of $     per Common Share on sales to certain other dealers. If all of the
Common Shares are not sold at the initial offering price, the representatives
may change the public offering price and other selling terms. Investors must pay
for any Common Shares purchased on or before             , 1999.



     The Fund has granted to the Underwriters an option, exercisable for 45 days
from the date of this prospectus, to purchase up to        additional Common
Shares at the public offering price less the underwriting discount. The
Underwriters may exercise such option solely for the purpose of covering
overallotments, if any, in connection with this offering. To the extent such
option is exercised, each Underwriter will be obligated, subject to certain
conditions, to purchase a number of additional Common Shares approximately
proportionate to such Underwriter's initial purchase commitment.



     The Fund and the Advisor have agreed that, for a period of 180 days from
the date of this prospectus, they will not, without the prior written consent of
Salomon Smith Barney Inc., on behalf of the Underwriters, dispose of or hedge
any Common Shares or any securities convertible into or exchangeable for Common
Shares. Salomon Smith Barney Inc. in its sole discretion may release any of the
securities subject to these agreements at any time without notice.


     Prior to the offering, there has been no public market for the Common
Shares. Consequently, the initial public offering price for the Common Shares
was determined by negotiation among the Fund, the Advisor and the
representatives. There can be no assurance, however, that the price at which the
Common Shares will sell in the public market after this offering will not be
lower than the price at which they are sold by the Underwriters or that an
active trading market in the Common Shares will develop and continue

                                       47
<PAGE>   50

after this offering. The Fund has applied for listing of the Common Shares on
the New York Stock Exchange.

     The Fund and the Advisor have each agreed to indemnify the several
Underwriters or contribute to losses arising out of certain liabilities,
including liabilities under the Securities Act.


     The Advisor has agreed to pay (i) all organizational expenses and (ii)
offering costs (other than sales load) that exceed $0.03 per share.


     In connection with the requirements for listing the Fund's Common Shares on
the New York Stock Exchange, the Underwriters have undertaken to sell lots of
100 or more Common Shares to a minimum of 2,000 beneficial owners in the United
States. The minimum investment requirement is 100 Common Shares.


     Certain Underwriters may make a market in the Common Shares after trading
in the Common Shares has commenced on the New York Stock Exchange. No
Underwriter is, however, obligated to conduct market-making activities and any
such activities may be discontinued at any time without notice, at the sole
discretion of the Underwriter. No assurance can be given as to the liquidity of,
or the trading market for, the Common Shares as a result of any market making
activities undertaken by any Underwriter. This prospectus is to be used by any
Underwriter in connection with the offering and, during the period in which a
prospectus must be delivered, with offers and sales of the Common Shares in
market-making transactions in the over-the-counter market at negotiated prices
related to prevailing market prices at the time of the sale.


     The Underwriters have advised the Fund that, pursuant to Regulation M under
the Securities Exchange Act of 1934, as amended, certain persons participating
in the offering may engage in transactions, including stabilizing bids, covering
transactions or the imposition of penalty bids, which may have the effect of
stabilizing or maintaining the market price of the Common Shares at a level
above that which might otherwise prevail in the open market. A "stabilizing bid"
is a bid for or the purchase of the Common Shares on behalf of an Underwriter
for the purpose of fixing or maintaining the price of the Common Shares. A
"covering transaction" is a bid for or purchase of the Common Shares on behalf
of an Underwriter to reduce a short position incurred by the Underwriters in
connection with the offering. A "penalty bid" is a contractual arrangement
whereby if, during a specified period after the issuance of the Common Shares,
the Underwriters purchase Common Shares in the open market for the account of
the underwriting syndicate and the Common Shares purchased can be traced to a
particular Underwriter or member of the selling group, the underwriting
syndicate may require the Underwriter or selling group member in question to
purchase the Common Shares in question at the cost price to the syndicate or may
recover from (or decline to pay to) the Underwriter or selling group member in
question any or all compensation (including, with respect to a representative,
the applicable syndicate management fee) applicable to the Common Shares in
question. As a result an Underwriter or selling group member and, in turn,
brokers may lose the fees that they otherwise would have earned from a sale of
the Common Shares if their customer resells the Common Shares while the penalty
bid is in effect. The Underwriters are not required to engage in any of these
activities, and any such activities, if commenced, may be discontinued at any
time.

     Representatives that sell at least a specified number of Common Shares will
share in the syndicate management fee based on the respective number of shares
sold by them.

     The Fund anticipates that from time to time the representatives of the
Underwriters and certain other Underwriters may act as brokers or dealers in
connection with the execution of the Fund's portfolio transactions after they
have ceased to be Underwriters and, subject to certain restrictions, may act as
brokers while they are Underwriters.

                                       48
<PAGE>   51


                     CUSTODIAN, DIVIDEND DISBURSING AGENT,


                          TRANSFER AGENT AND REGISTRAR


     The Fund's securities and cash are held by The Chase Manhattan Bank, whose
principal business address is 270 Park Avenue, New York, New York 10017-2070, as
custodian (the "Custodian") under a custodian contract.

     EquiServe, whose principal business address is 150 Royall Street, Canton,
Massachusetts 02021, serves as dividend disbursing agent, as agent under the
Plan and as transfer agent and registrar for the shares.

                                 LEGAL OPINIONS


     Certain legal matters in connection with the Common Shares will be passed
upon for the Fund by Ropes & Gray, Boston, Massachusetts, and for the
Underwriters by Simpson Thacher & Bartlett, New York, New York. Simpson Thacher
& Bartlett will rely, as to certain matters of Massachusetts law in its opinion,
on the opinion of Ropes & Gray.


                                       49
<PAGE>   52

                           TABLE OF CONTENTS FOR THE
                      STATEMENT OF ADDITIONAL INFORMATION


<TABLE>
<S>                                                           <C>
Use of Proceeds.............................................   B-2
Investment Objective and Policies...........................   B-2
Fund Charges and Expenses...................................   B-4
Management of the Fund......................................   B-5
Portfolio Transactions......................................  B-11
Net Asset Value.............................................  B-11
Description of Shares.......................................  B-12
Repurchase of Common Shares.................................  B-14
Miscellaneous Investment Practices..........................  B-16
Tax Matters.................................................  B-26
Shareholder Liability.......................................  B-29
Custodian...................................................  B-29
Independent Accountants.....................................  B-29
Miscellaneous Matters.......................................  B-29
Appendix A -- Ratings of Investments........................  B-30
Appendix B -- Special Considerations Relating to
  California................................................  B-35
</TABLE>


                                       50
<PAGE>   53

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

                                                  SHARES


                              COLONIAL CALIFORNIA


                             INSURED MUNICIPAL FUND


                                 COMMON SHARES
                                $15.00 PER SHARE

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

                                   PROSPECTUS

                                           , 1999

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


                              SALOMON SMITH BARNEY


                           A.G. EDWARDS & SONS, INC.


                            PAINEWEBBER INCORPORATED


                            SUTRO & CO. INCORPORATED


                           WEDBUSH MORGAN SECURITIES


- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   54

THE INFORMATION IN THIS STATEMENT OF ADDITIONAL INFORMATION IS NOT COMPLETE AND
MAY BE CHANGED. WE MAY NOT SELL THESE SECURITIES UNTIL THE REGISTRATION
STATEMENT FILED WITH THE SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS
STATEMENT OF ADDITIONAL INFORMATION IS NOT AN OFFER TO SELL THESE SECURITIES AND
IS NOT SOLICITING AN OFFER TO BUY THESE SECURITIES IN ANY STATE WHERE THE OFFER
OR SALE IS NOT PERMITTED.


                SUBJECT TO COMPLETION, DATED SEPTEMBER 27, 1999



                              COLONIAL CALIFORNIA


                             INSURED MUNICIPAL FUND


                      STATEMENT OF ADDITIONAL INFORMATION


     This Statement of Additional Information ("SAI") relating to the common
shares of beneficial interest ("Common Shares") offered by Colonial California
Insured Municipal Fund (the "Fund") contains information which may be useful to
investors but which is not included in the Prospectus of the Fund. This SAI is
not a prospectus and is authorized for distribution only when accompanied or
preceded by the Prospectus of the Fund dated             , 1999, describing the
Common Shares (the "Prospectus"). This SAI should be read together with the
Prospectus. Investors may obtain a free copy of the Prospectus by calling
Colonial Management Associates, Inc. at 1-800-426-3750. Capitalized terms used
but not defined in this SAI have the meanings ascribed to them in the
Prospectus.


                               TABLE OF CONTENTS


<TABLE>
<S>                                                           <C>
Use of Proceeds.............................................   B-2
Investment Objective and Policies...........................   B-2
Fund Charges and Expenses...................................   B-4
Management of the Fund......................................   B-5
Portfolio Transactions......................................  B-11
Net Asset Value.............................................  B-11
Description of Shares.......................................  B-12
Repurchase of Common Shares.................................  B-14
Miscellaneous Investment Practices..........................  B-16
Tax Matters.................................................  B-26
Shareholder Liability.......................................  B-29
Custodian...................................................  B-29
Independent Accountants.....................................  B-29
Miscellaneous Matters.......................................  B-29
Appendix A -- Ratings of Investments........................  B-30
Appendix B -- Special Considerations Relating to
  California................................................  B-35
</TABLE>

<PAGE>   55

                                USE OF PROCEEDS


     The net proceeds of the offering of Common Shares will be approximately
$          ($          if the underwriters exercise their overallotment option
in full) after payment of the sales load to Salomon Smith Barney Inc. (the
"Underwriter") and estimated organization and offering costs. A portion of the
offering costs has been advanced by the Fund's investment advisor, Colonial
Management Associates, Inc. (the "Advisor").



     The net proceeds of the offering will be invested in accordance with the
Fund's investment objective and policies. It is presently anticipated that the
Fund will be able to invest substantially all of the net proceeds in California
Municipal Obligations (as defined below) that meet the Fund's investment
objective at or shortly (within three months) after the completion of the
offering. To the extent that all of the proceeds cannot be so invested, pending
such investment, they will be invested initially in high-quality, short-term,
tax-exempt securities, to the extent such securities are available. If necessary
to invest fully the net proceeds of the offerings immediately, the Fund may also
purchase, as temporary investments, short-term taxable investments of the type
described under "Investment Objective and Policies -- Temporary and Defensive
Investments" in the Prospectus, the income on which may be subject to federal
income taxes.



                       INVESTMENT OBJECTIVE AND POLICIES



     The Fund's Prospectus describes its investment objective and investment
policies. This SAI includes additional information concerning, among other
things, the investment policies of the Fund and information about certain
securities and investment techniques that are described or referred to in the
Prospectus or in which the Fund expects to engage. Except as indicated under
"Fundamental Investment Policies," the Fund's investment policies are not
fundamental and the Trustees may change the policies without shareholder
approval.



     As used in this Statement of Additional Information, the term "Municipal
Obligations" refers to debt obligations the interest on which was at the time of
issuance, in the opinion of issuer's counsel (or on the basis of other reliable
authority), exempt from federal income tax (other than the possible incidence of
any alternative minimum tax ("AMT")). The term "California Municipal
Obligations" refers to Municipal Obligations the interest on which is also
exempt from California state personal income tax.


FUNDAMENTAL INVESTMENT POLICIES


     The following fundamental restrictions are for the protection of the Fund's
shareholders and cannot be changed without the approval of the holders of a
"majority of the outstanding" Common Shares and preferred shares, including any
Municipal Preferred Shares which may be issued in the future by means of a
separate prospectus, voting together as a single class, and of the holders of a
"majority of the outstanding" Preferred Shares, including any Municipal
Preferred Shares, voting as a separate class. A "majority of the outstanding"
shares means the lesser of (i) 67% of the shares represented at a meeting at
which more than 50% of the outstanding shares are represented or (ii) more than
50% of the outstanding shares.


     The Fund may:

     1. issue senior securities or borrow money to the extent permitted by the
        1940 Act;

     2. only own real estate acquired as a result of owning securities;

     3. purchase and sell futures contracts and related options;

     4. underwrite securities issued by others only when disposing of portfolio
        securities;

     5. make loans only through lending of securities, through the purchase of
        debt instruments or similar evidences of indebtedness typically sold to
        financial institutions and through repurchase agreements;


     6. not concentrate more than 25% of its total assets in any one industry
        (in the utilities category, gas, electric, water and telephone companies
        will be considered as separate industries);


                                       B-2
<PAGE>   56


     7. purchase or sell commodities or commodities contracts, except that,
        consistent with its investment policies, the Fund may purchase and sell
        financial futures contracts and options and may enter into swap
        agreements, foreign (semi-color) exchange contracts and other financial
        transactions not requiring the delivery of physical commodities; and



     8. will, under normal circumstances, invest at least 80% of its assets in
        debt obligations issued by or on behalf of the State of California or
        its political subdivisions, agencies or instrumentalities, the interest
        on which is, in the opinion of issuer's counsel (or on the basis of
        other reliable authority), exempt from regular federal income tax and
        California state personal income taxes.



     For the purpose of applying the limitation set forth above in subparagraph
(6), an issuer shall be deemed the sole issuer of a security when its assets and
revenues are separate from other governmental entities and its securities are
backed only by its assets and revenues. Similarly, in the case of a
non-governmental issuer, such as an industrial corporation or a privately owned
or operated hospital, if the security is backed only by the assets and revenues
of the non-governmental issuer, then such non-governmental issuer would be
deemed to be the sole issuer. Where a security is also backed by the enforceable
obligation of a superior or unrelated governmental or other entity (other than a
bond insurer), it shall also be included in the computation of securities owned
that are issued by such governmental or other entity. Where a security is
guaranteed by a governmental entity or some other facility, such as a bank
guarantee or letter of credit, such a guarantee or letter of credit would be
considered a separate security and would be treated as an issue of such
government, other entity or bank. When a Municipal Obligation is insured by bond
insurance, it shall not be considered a security that is issued or guaranteed by
the insurer; instead, the issuer of such Municipal Obligation will be determined
in accordance with the principles set forth above. The foregoing restrictions do
not limit the percentage of the Fund's assets that may be invested in Municipal
Obligations insured by any given insurer.


     The restrictions and other limitations set forth above will apply only at
the time of purchase of securities and will not be considered violated unless an
excess or deficiency occurs or exists immediately after and as a result of an
acquisition of securities.

     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.

OTHER INVESTMENT POLICIES

     As non-fundamental investment policies which may be changed by the Fund
without a shareholder vote, the Fund may not:


     1. purchase securities on margin, but it may receive short-term credit to
        clear securities transactions and may make initial or maintenance margin
        deposits in connection with futures transactions;



     2. make short sales of securities, other than short sales "against the
        box," provided that this restriction will not be applied to limit the
        use of options, futures contracts and related options, in the manner
        otherwise permitted by the investment restrictions, policies and
        investment program of the Fund. The Fund has no current intention of
        making short sales against the box; and



     3. invest in interests in oil, gas or other mineral exploration or
        development programs, including leases.


     The Fund intends to apply for ratings for the Municipal Preferred Shares
which it may offer in the future from Moody's Investors Service, Inc. ("Moody's)
and/or Standard & Poor's Rating Services ("S&P"). In order to obtain and
maintain the required ratings, the Fund may be required to comply with
investment quality, diversification and other guidelines established by Moody's
or S&P. Such guidelines will likely be more restrictive than the restrictions
set forth above. The Fund does not anticipate that such guidelines would have a
material adverse effect on the Fund's Common Shareholders or its ability to
achieve its investment objectives. The Fund presently anticipates that any
Municipal Preferred Shares that it intends to issue would be initially given the
highest ratings by Moody's ("Aaa") or by S&P ("AAA"), but no assurance can be
given that such ratings will be obtained. No minimum rating is required for the
issuance of Municipal Preferred Shares by the Fund. Moody's and S&P receive fees
in connection with their ratings issuances.

                                       B-3
<PAGE>   57

                           FUND CHARGES AND EXPENSES


     Under the Fund's Management Agreement with the Advisor, the Fund pays the
Advisor a monthly fee based on the average weekly net assets of the Fund,
including the proceeds of the offering of shares of Municipal Preferred, if any,
for such month at the annual rate of 0.65% of average weekly total net assets.



     For the first ten years of the Fund's operation, the Advisor has agreed to
waive the Fund's fees and expenses in the amounts, and for the time periods, set
forth below:



<TABLE>
<CAPTION>
                              PERCENTAGE WAIVED
      YEAR ENDING        (AS A PERCENTAGE OF AVERAGE
     NOVEMBER 30,         WEEKLY TOTAL NET ASSETS)*
     ------------        ---------------------------
<S>                      <C>
2000**.................             0.30%
2001...................             0.30%
2002...................             0.30%
2003...................             0.30%
2004...................             0.30%
</TABLE>



<TABLE>
<CAPTION>
                              PERCENTAGE WAIVED
      YEAR ENDING        (AS A PERCENTAGE OF AVERAGE
     NOVEMBER 30,         WEEKLY TOTAL NET ASSETS)*
     ------------        ---------------------------
<S>                      <C>
2005...................             0.25%
2006...................             0.20%
2007...................             0.15%
2008...................             0.10%
2009...................             0.05%
</TABLE>


- ---------------
 * Including net assets attributable to Municipal Preferred Shares.


** From the commencement of operations.



     The Advisor has not agreed to waive any portion of the Fund's fees and
expenses beyond November 30, 2009.


     The Fund recently commenced operations and has not paid any advisory fees
to the Advisor.

BROKERAGE COMMISSIONS

     The Fund recently commenced operations and has not paid any brokerage
commissions.

                                       B-4
<PAGE>   58

                             MANAGEMENT OF THE FUND

TRUSTEES AND OFFICERS

     The names and business addresses of the Trustees and officers of the Fund
and their principal occupations and other affiliations during the past five
years are set forth below.


<TABLE>
<CAPTION>
NAME (AGE)                         POSITIONS AND               PRINCIPAL OCCUPATIONS
AND ADDRESS                      OFFICES WITH FUND             DURING PAST FIVE YEARS
- -----------                      -----------------             ----------------------
<S>                            <C>                     <C>
Robert J. Birnbaum (71)        Trustee                 Consultant (formerly Special Counsel,
  313 Bedford Road                                     Dechert Price & Rhoads (law firm) from
  Ridgewood, NJ 07450                                  September, 1988 to December, 1993;
                                                       President, New York Stock Exchange
                                                       from May, 1985 to June, 1988;
                                                       President, American Stock Exchange,
                                                       Inc. from 1977 to May, 1985).
Tom Bleasdale (69)             Trustee                 Retired (formerly Chairman of the
  502 Woodlands Drive                                  Board and Chief Executive Officer,
  Linville, NC 07450                                   Shore Bank & Trust Company from 1992
                                                       to 1993); Director of The Empire
                                                       Company since June, 1995.
John V. Carberry* (52)         Trustee                 Senior Vice President of Liberty
  56 Woodcliff Road                                    Financial Companies, Inc. (formerly
  Wellesley Hills, MA 02481                            Managing Director, Salomon Brothers
                                                       (investment banking) from January,
                                                       1988 to January, 1998).
Lora S. Collins (63)           Trustee                 Attorney (formerly Attorney, Kramer,
  1175 Hill Road                                       Levin, Naftalis & Frankel (law firm)
  Southold, NY 11971                                   from September, 1986 to November,
                                                       1996).
James E. Grinnell (69)         Trustee                 Private Investor since November, 1988.
  22 Harbor Avenue
  Marblehead, MA 01945
Richard W. Lowry* (63)         Trustee                 Private Investor since August, 1987.
  Seven Winter Street
  Nantucket, MA 02554
Salvatore Macera (67)          Trustee                 Private Investor (formerly Executive
  26 Little Neck Lane                                  Vice President and Director of Itek
  New Seabury, MA 02649                                Corporation (electronics) from 1975 to
                                                       1981).
William E. Mayer* (59)         Trustee                 Partner, Development Capital, LLC
  500 Park Avenue, 5th Floor                           (venture capital) (formerly Dean,
  New York, NY 10022                                   College of Business and Management,
                                                       University of Maryland from October,
                                                       1992 to November, 1996; Dean, Simon
                                                       Graduate School of Business,
                                                       University of Rochester from October,
                                                       1991 to July, 1992).
James L. Moody, Jr.* (67)      Trustee                 Retired (formerly Chairman of the
  16 Running Tide Road                                 Board, Hannaford Bros. Co. (food
  Cape Elizabeth, ME 04107                             retailer) from May, 1984 to May, 1997,
                                                       and Chief Executive Officer, Hannaford
                                                       Bros. Co. from May, 1973 to May,
                                                       1992).
</TABLE>


                                       B-5
<PAGE>   59


<TABLE>
<CAPTION>
NAME (AGE)                         POSITIONS AND               PRINCIPAL OCCUPATIONS
AND ADDRESS                      OFFICES WITH FUND             DURING PAST FIVE YEARS
- -----------                      -----------------             ----------------------
<S>                            <C>                     <C>
John J. Neuhauser (56)         Trustee                 Dean, Boston College School of
  84 College Road                                      Management since September, 1977.
  Chestnut Hill, MA 02467
Thomas E. Stitzel* (63)        Trustee                 Professor of Finance, College of
  2208 Tawny Woods Place                               Business, Boise State University
  Boise, ID 83706                                      (higher education); Business
                                                       consultant and author.
Robert L. Sullivan* (71)       Trustee                 Retired (formerly Partner, KPMG Peat
  45 Sankaty Avenue                                    Marwick LLP, from July, 1966 to June,
  Siasconset, MA 02564                                 1985).
Anne-Lee Verville (53)         Trustee                 Consultant (formerly General Manager,
  359 Stickney Hill Road                               Global Education Industry from 1994 to
  Hopkinton, NH 03229                                  1997, and President, Applications
                                                       Solutions Division from 1991 to 1994,
                                                       IBM Corporation (global education and
                                                       global applications)).
Stephen E. Gibson (45)         President               President of the Fund and the Liberty
                                                       Funds since June, 1998, Chairman of
                                                       the Board since July, 1998, and Chief
                                                       Executive Officer and President since
                                                       December, 1996, and Director since
                                                       1996 of the Advisor (formerly
                                                       Executive Vice President from July,
                                                       1996 to December, 1996); Director,
                                                       Chief Executive Officer and President
                                                       of Liberty Funds Group LLC (formerly
                                                       known as COGRA, LLC) ("LFG") since
                                                       December, 1998 (formerly Director,
                                                       Chief Executive Officer and President
                                                       of The Colonial Group, Inc. ("TCG")
                                                       from December, 1996 to December,
                                                       1998); Assistant Chairman of Stein Roe
                                                       & Farnham Incorporated ("SR&F") since
                                                       August, 1998 (formerly Managing
                                                       Director of Marketing of Putnam
                                                       Investments from June, 1992 to July,
                                                       1996).
J. Kevin Connaughton (34)      Controller and Chief    Controller and Chief Accounting
                               Accounting Officer      Officer of the Fund and the Liberty
                                                       Funds, except Liberty Funds Trust IX,
                                                       since February, 1998; Controller,
                                                       Liberty Funds Trust IX, since
                                                       December, 1998; Vice President of the
                                                       Advisor since February, 1998 (formerly
                                                       Senior Tax Manager, Coopers & Lybrand,
                                                       LLP from April, 1996 to January, 1998;
                                                       Vice President, 440 Financial
                                                       Group/First Data Investor Services
                                                       Group from March, 1994 to April,
                                                       1996).
</TABLE>


                                       B-6
<PAGE>   60


<TABLE>
<CAPTION>
NAME (AGE)                         POSITIONS AND               PRINCIPAL OCCUPATIONS
AND ADDRESS                      OFFICES WITH FUND             DURING PAST FIVE YEARS
- -----------                      -----------------             ----------------------
<S>                            <C>                     <C>
Timothy J. Jacoby (45)         Treasurer and Chief     Treasurer and Chief Financial Officer
                               Financial Officer       of the Fund and the Liberty Funds,
                                                       except Liberty Funds Trust IX, since
                                                       October, 1996 (formerly Controller and
                                                       Chief Accounting Officer from October,
                                                       1997 to February, 1998); Treasurer of
                                                       Liberty Funds Trust IX since December,
                                                       1998; Senior Vice President of the
                                                       Advisor since September, 1996; Vice
                                                       President, Chief Financial Officer and
                                                       Treasurer of LFG since December, 1998
                                                       (formerly Vice President, Chief
                                                       Financial Officer and Treasurer of TCG
                                                       from July, 1997 to December, 1998);
                                                       Senior Vice President of SR&F since
                                                       August, 1998 (formerly Senior Vice
                                                       President, Fidelity Accounting and
                                                       Custody Services from September, 1993
                                                       to September, 1996).
Nancy L. Conlin (45)           Secretary               Secretary of the Fund and the Liberty
                                                       Funds, except Liberty Funds Trust IX,
                                                       since April, 1998 (formerly Assistant
                                                       Secretary from July, 1994 to April,
                                                       1998); Director, Senior Vice
                                                       President, General Counsel, Clerk and
                                                       Secretary of the Advisor since April,
                                                       1998 (formerly Vice President,
                                                       Counsel, Assistant Secretary and
                                                       Assistant Clerk from July, 1994 to
                                                       April, 1998); Vice President, General
                                                       Counsel and Secretary of LFG since
                                                       December, 1998) (formerly Vice
                                                       President, General Counsel and Clerk
                                                       of TCG from April, 1998 to December,
                                                       1998; formerly Assistant Clerk from
                                                       July, 1994 to April, 1998).
</TABLE>


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

* Denotes those Trustees who are "interested persons" (as defined in the
  Investment Company Act of 1940, as amended (the "1940 Act")) of the Fund, the
  Advisor or one or more of the Underwriters. Mr. Carberry is an "interested
  person" as defined in the 1940 Act because of his affiliation with Liberty
  Financial Companies, Inc., an indirect parent company of the Advisor. Mr.
  Mayer is an "interested person" as defined in the 1940 Act because he is a
  director of Hambrecht & Quist Incorporated, a registered broker-dealer.
  Messrs. Lowry, Moody and Stitzel are "interested persons" as defined in the
  1940 Act because each has a direct or indirect beneficial interest in, or is
  designated as trustee, executor or guardian of a legal interest in, one or
  more of the Underwriters or a controlling person (as such term is defined in
  the 1940 Act) of one or more of the Underwriters.


     The business address of the officers of the Fund is One Financial Center,
Boston, MA 02111.

     The Trustees of the Fund are also directors or trustees, as the case may
be, of Liberty Funds Trust I, Liberty Funds Trust II, Liberty Funds Trust III,
Liberty Funds Trust IV, Liberty Funds Trust V, Liberty Funds Trust VI, Liberty
Funds Trust VII, Liberty Funds Trust VIII (formerly known as LFC Utilities
Trust), Liberty Variable Investment Trust ("LVIT"), Colonial Municipal Income
Trust, Colonial High Income Municipal Trust, Colonial Investment Grade Municipal
Trust, Colonial Intermediate High Income Fund, and Colonial Intermarket Income
Trust I (collectively, each trust or any series thereof termed the "Liberty
Funds").

                                       B-7
<PAGE>   61


     At the first annual meeting of the Fund's shareholders following the
issuance of Municipal Preferred Shares, holders of outstanding shares of
Municipal Preferred, voting together as one separate class, will elect two
Trustees, and holders of outstanding Common Shares and shares of Municipal
Preferred, voting together as a single class, will elect the remaining Trustees.
See "Description of Shares -- Municipal Preferred Shares -- Voting Rights."


     The Trustees serve as trustees of all Liberty Funds for which each Trustee
(except Mr. Carberry) receives an annual retainer of $45,000 and attendance fees
of $8,000 for each regular joint meeting and $1,000 for each special joint
meeting. Committee chairs and the lead Trustee receive an annual retainer of
$1,000 and Committee chairs receive $1,000 for each special meeting attended on
a day other than a regular joint meeting day. Committee members receive an
annual retainer of $1,000 and $1,000 for each special meeting attended on a day
other than a regular joint meeting day. Two-thirds of the Trustee fees are
allocated among the Liberty Funds based on each Liberty Fund's relative net
assets, and one-third of the fees are divided equally among the Liberty Funds.

TRUSTEES AND TRUSTEES' FEES


     It is estimated that the Trustees will receive the amounts set forth below
for the fiscal year ending November 30, 1999. For the calendar year ended
December 31, 1998, the Trustees received the compensation set forth below for
serving as trustees of the Liberty Funds.(a)



<TABLE>
<CAPTION>
                                                                               TOTAL COMPENSATION FROM
                                            ESTIMATED COMPENSATION FROM      THE FUND COMPLEX PAID TO THE
                                            THE FUND FOR THE FISCAL YEAR    TRUSTEES FOR THE CALENDAR YEAR
TRUSTEE                                       ENDED NOVEMBER 30, 1999         ENDED DECEMBER 31, 1998(b)
- -------                                     ----------------------------    ------------------------------
<S>                                         <C>                             <C>
Robert J. Birnbaum(c).....................             $812                            $ 99,429
Tom Bleasdale(c)..........................              845(d)                          115,000(e)
John V. Carberry(f)(g)....................              N/A                                 N/A
Lora S. Collins(c)........................              812                              97,429
James E. Grinnell(c)......................              845                             103,071
Richard W. Lowry(c).......................              812                              98,214
Salvatore Macera(h).......................              804                              25,250
William E. Mayer(c).......................              845                              99,286
James L. Moody, Jr.(c)....................              845(i)                          105,857(j)
John J. Neuhauser(c)......................              849                             105,323
Thomas E. Stitzel(h)......................              804                              25,250
Robert L. Sullivan(c).....................              876                             104,100
Anne-Lee Verville(c)(f)...................              804(k)                           23,445(l)
</TABLE>


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

 (a) Neither the Fund nor the Fund Complex currently provides pension or
     retirement plan benefits to the Trustees.



 (b) At December 31, 1998, the complex consisted of 56 open-end and 5 closed-end
     management investment portfolios in the Liberty Funds (together, the "Fund
     Complex").



 (c) Elected by the shareholders of LVIT on October 30, 1998.



 (d) Is expected to include $431 payable in later years as deferred
     compensation.



 (e) Includes $52,000 payable in later years as deferred compensation.



 (f) Elected by the trustees of the closed-end Liberty Funds on June 18, 1998,
     and by the shareholders of the open-end Liberty Funds on October 30, 1998.



 (g) Does not receive compensation because he is an affiliated Trustee and
     employee of Liberty Financial Companies, Inc. ("Liberty Financial").


                                       B-8
<PAGE>   62


 (h) Elected by the shareholders of the open-end Liberty Funds on October 30,
     1998, and by the trustees of the closed-end Liberty Funds on December 17,
     1998.



 (i) Total estimated compensation of $845 for the fiscal year ended November 30,
     1999, is expected to be payable in later years as deferred compensation.



 (j) Total compensation of $105,857 for the calendar year ended December 31,
     1998, will be payable in later years as deferred compensation.



 (k) Total estimated compensation of $804 for the fiscal year ended November 30,
     1999, is expected to be payable in later years as deferred compensation.



 (l) Total compensation of $23,445 for the calendar year ended December 31,
     1998, will be payable in later years as deferred compensation.



     For the calendar year ended December 31, 1998, certain of the Trustees
received the following compensation in their capacities as trustees or directors
of Liberty All-Star Equity Fund, Liberty All-Star Growth Fund, Inc. and Liberty
Funds Trust IX (formerly known as LAMCO Trust I) (together, the "Liberty
All-Star Funds")(m).



<TABLE>
<CAPTION>
                                                                      TOTAL COMPENSATION FROM
                                                            THE LIBERTY ALL-STAR FUNDS FOR THE CALENDAR
TRUSTEE                                                           Year Ended December 31, 1998(n)
- -------                                                     -------------------------------------------
<S>                                                         <C>
Robert J. Birnbaum........................................                    $25,000
John V. Carberry(o).......................................                        N/A
James E. Grinnell.........................................                     25,000
Richard W. Lowry..........................................                     25,000
William E. Mayer(p).......................................                     14,000
John J. Neuhauser(q)......................................                     25,000
</TABLE>


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

(m) The Liberty All-Star Funds do not currently provide pension or retirement
    plan benefits to the trustees/ directors.



 (n) The Liberty All-Star Funds are advised by Liberty Asset Management Company
     ("LAMCO"). LAMCO is an indirect wholly owned subsidiary of Liberty
     Financial (an intermediate parent of the Advisor).



 (o) Elected by the trustees/directors of the Liberty All-Star Funds on June 30,
     1998. Does not receive compensation because he is an affiliated trustee and
     employee of Liberty Financial.



 (p) Elected by the shareholders of the Liberty All-Star Equity Fund on April
     22, 1998, and by the directors of the Liberty All-Star Growth Fund, Inc. on
     December 17, 1998.



 (q) Elected by the shareholders of the Liberty All-Star Funds on April 22,
     1998.


     At           , 1999, the Fund's officers and Trustees as a group owned less
than 1% of the outstanding Common Shares.

     At           , 1999,             , owned of record           shares,
representing           , of the Fund's outstanding shares.

     In addition to the provisions discussed in the Prospectus under "Certain
Provisions in the Agreement and Declaration of Trust," the Declaration provides
that the obligations of the Fund are not binding upon the Trustees of the Fund
individually, but only upon the assets and property of the Fund. The Declaration
also provides that the Fund will indemnify its Trustees and officers against
liabilities and expenses incurred in connection with litigation in which they
may be involved because of their offices with the Fund but that such
indemnification will not relieve any officer or Trustee of any liability to the
Fund or its shareholders by reason of willful misfeasance, bad faith, gross
negligence or reckless disregard of his or her duties. The Fund, at its expense,
provides liability insurance for the benefit of its Trustees and officers.

                                       B-9
<PAGE>   63

INVESTMENT ADVISOR


     Colonial Management Associates, Inc. (the "Advisor"), and/or its affiliate,
Colonial Advisory Services, Inc. ("CASI"), has rendered investment advisory
services to investment company, institutional and other clients since 1931. The
Advisor currently serves as investment advisor, sub-advisor or administrator for
62 open-end and 7 closed-end management investment company portfolios. Trustees
and officers of the Fund, who are also officers of the Advisor or its
affiliates, will benefit from the advisory fees, sales commissions and agency
fees paid or allowed by the Fund. More than 30,000 financial advisors have
recommended the Liberty Funds to over 800,000 clients worldwide, representing
more than $16.3 billion in assets.



     The Advisor is a subsidiary of Liberty Funds Group LLC ("LFG"), One
Financial Center, Boston, MA 02111. LFG is an indirect wholly owned subsidiary
of Liberty Financial Companies, Inc. ("Liberty Financial"), which in turn is a
direct majority-owned subsidiary of LFC Management Corporation, which in turn is
a direct wholly owned subsidiary of Liberty Corporate Holdings, Inc., which in
turn is a direct wholly owned subsidiary of LFC Holdings, Inc., which in turn is
a direct wholly owned subsidiary of Liberty Mutual Equity Corporation, which in
turn is a direct wholly owned subsidiary of Liberty Mutual Insurance Company
("Liberty Mutual"). Liberty Mutual is an underwriter of workers' compensation
insurance and of property and casualty insurance in the United States. Liberty
Financial's address is 600 Atlantic Avenue, Boston, MA 02210. Liberty Mutual's
address is 175 Berkeley Street, Boston, MA 02117.


     Under a Management Agreement (the "Agreement"), the Advisor has contracted
to furnish the Fund with investment research and recommendations or fund
management, respectively, and accounting and administrative personnel and
services, and with office space, equipment and other facilities. For these
services and facilities, the Fund pays a monthly fee based on the average weekly
net assets of the Fund for such month. Under the Agreement, any liability of the
Advisor to the Fund and/or its shareholders is limited to situations involving
the Advisor's own willful misfeasance, bad faith, gross negligence or reckless
disregard of its duties.

     The Agreement may be terminated with respect to the Fund at any time on 60
days' written notice by the Advisor or by the Trustees of the Fund or by a vote
of a majority of the outstanding voting securities of the Fund. The Agreement
will automatically terminate upon any assignment thereof and shall continue in
effect from year to year only so long as such continuance is approved at least
annually (i) by the Trustees of the Fund or by a vote of a majority of the
outstanding voting securities of the Fund and (ii) by vote of a majority of the
Trustees who are not interested persons (as such term is defined in the 1940
Act) of the Advisor or the Fund, cast in person at a meeting called for the
purpose of voting on such approval.


     The Advisor pays all salaries of officers of the Fund. The Fund pays all
expenses not assumed by the Advisor, including, but not limited to, auditing,
legal, custodial, investor servicing and shareholder reporting expenses. The
Fund pays the cost of printing and mailing any prospectuses sent to
shareholders.



     The Advisor also provides the Fund with bookkeeping and pricing services,
and for these services, the Fund pays the Advisor a monthly fee of $1,500 for
the first $50 million of Fund assets, plus a monthly percentage fee at the
following annual rates: 0.0233% on the next $950 million; 0.0167% on the next $1
billion; 0.0100% on the next $1 billion; and 0.0007% on the excess over $3
billion of the average net assets of the Fund for such month.


     The Advisor also acts as investment advisor to the other Liberty Funds
(described under "Fund Charges and Expenses -- Trustees' Fees"). The Advisor's
affiliate, CASI, advises other institutional, corporate, fiduciary and
individual clients for which CASI performs various services. Various officers
and Trustees of the Fund also serve as officers, directors or trustees of other
Liberty Funds and the other corporate or fiduciary clients of the Advisor. The
other investment companies and clients advised by the Advisor may sometimes
invest in securities and options in which the Fund will also invest. If the
Fund, such other investment companies and such clients desire to buy or sell the
same portfolio securities or options at about the same time, the purchases and
sales will normally be made as nearly as practicable on a pro rata basis in
proportion to the amounts desired to be purchased or sold by each. Although in
some cases these practices may have a detrimental effect on the price or volume
of the securities or options as far as the Fund is concerned, in most cases it
is believed that these practices should produce better executions. It is the
opinion of the Trustees that the desirability of retaining the Advisor as
investment advisor to the Liberty Funds outweighs the disadvantages, if any,
which might result from these practices.

                                      B-10
<PAGE>   64

                             PORTFOLIO TRANSACTIONS

     The Advisor is responsible for decisions to buy and sell securities and
other portfolio holdings for the Fund, the selection of brokers and dealers to
effect the transactions and the negotiation of brokerage commissions, if any.
Fixed-income securities are generally traded on a "net" basis with dealers
acting as principals for their own accounts without a stated commission,
although the price of the security will likely include a profit to the dealer.
In underwritten offerings, securities are usually purchased at a fixed price
which includes an amount of compensation to the underwriter, generally referred
to as the underwriter's concession or discount. On occasion, certain money
market instruments may be purchased directly from an issuer, in which case no
commissions or discounts are paid.

     In placing orders for portfolio securities of the Fund, the Advisor is
required to give primary consideration to obtaining the most favorable price and
efficient execution. This means that the Advisor will seek to execute each
transaction at a price and commission, if any, which provides the most favorable
total cost or proceeds reasonably attainable under the circumstances. In seeking
the most favorable price and execution, the Advisor, having in mind the Fund's
best interests, will consider all factors it deems relevant, including, by way
of illustration, price, the size of the transaction, the nature of the market
for the security, the amount of commission, the timing of the transaction taking
into account market prices and trends, the reputation, experience and financial
stability of the broker-dealer involved and the quality of service rendered by
the broker-dealer in other transactions. Though the Advisor generally seeks
reasonably competitive spreads or commissions, the Fund will not necessarily be
paying the lowest spread or commission available. Within the framework of the
policy of obtaining the most favorable price and efficient execution, the
Advisor will consider research and investment services provided by brokers and
dealers who effect or are parties to portfolio transactions with the Fund, the
Advisor or the Advisor's other clients. Such research and investment services
are those which brokerage houses customarily provide to institutional investors
and include statistical and economic data and research reports on particular
issuers and industries. Such services are used by the Advisor in connection with
all of its investment activities, and some of such services obtained in
connection with the execution of transactions for the Fund may be used in
managing other investment accounts. Conversely, brokers furnishing such services
may be selected for the execution of transactions for such other accounts, and
the services furnished by such brokers may be used by the Advisor in providing
investment management for the Fund. Commission rates are established pursuant to
negotiations based on the quality and quantity of execution services provided by
the broker or dealer in light of generally prevailing rates. The management fee
paid by the Fund will not be reduced because the Advisor and/or other clients
receive such services. The allocation of orders and the commission rates paid by
the Fund will be reviewed periodically by the Board of Trustees.

     As permitted by Section 28(e) of the Securities Exchange Act of 1934, as
amended (the "1934 Act"), the Advisor may cause the Fund to pay a broker-dealer
which provides "brokerage and research services" (as defined in the 1934 Act) to
the Advisor, an amount of disclosed commission for effecting a securities
transaction for the Fund in excess of the commission which another broker-dealer
would have charged for effecting that transaction.


     The Fund recently commenced operations and has not paid any brokerage
commissions for the execution of portfolio transactions. The rate of portfolio
turnover for the Fund is expected to be approximately 50%.


                                NET ASSET VALUE

     Net asset value of the Fund will be determined no less frequently than as
of the close of regular trading on the New York Stock Exchange (the "Exchange")
(generally 4:00 p.m. Eastern time) on the last Business Day of each week
(generally Friday), and at such other times as the Fund may authorize. The net
asset value of the Fund equals the value of the Fund's assets less the Fund's
liabilities. Portfolio securities for which market quotations are readily
available are valued at current market value. Short-term investments maturing in
60 days or less are valued at amortized cost when the Advisor determines,
pursuant to procedures adopted by the Board of Trustees, that such cost
approximates current market value. All other securities and assets are valued at
their fair value following procedures adopted by the Board of Trustees.

                                      B-11
<PAGE>   65

     In determining net asset value for the Fund, the Fund's custodian utilizes
the valuations of portfolio securities furnished by a pricing service approved
by the Board of Trustees. Securities for which quotations are not readily
available (which will constitute a majority of the securities held by the Fund)
are valued at fair value as determined by the pricing service using methods
which include consideration of the following: 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 or a matrix system, or
both, 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 Trustees.

                             DESCRIPTION OF SHARES

     The descriptions of the Common Shares and the Municipal Preferred Shares
contained in the Prospectus and this Statement of Additional Information do not
purport to be complete and are subject to and qualified in their entireties by
reference to the Declaration of Trust of the Trust (the "Declaration") and the
By-Laws of the Trust (the "By-Laws"), each as from time to time amended. Copies
of the Declaration and the form of the By-Laws are filed as exhibits to the
Registration Statement of which the Prospectus and this Statement of Additional
Information are a part and may be inspected, and copies thereof may be obtained,
as described under "Further Information" in the Prospectus.

COMMON SHARES

     The Declaration authorizes the issuance of an unlimited number of Common
Shares, no par value. All Common Shares have equal rights as to the payment of
dividends and the distribution of assets upon liquidation. Common Shares will,
when issued, be fully paid and, subject to matters discussed in "Shareholder
Liability," non-assessable, and will have no pre-emptive or conversion rights or
rights to cumulative voting. At any time when the Fund's Municipal Preferred
Shares are outstanding, Common Shareholders will not be entitled to receive any
distributions from the Fund unless all accrued dividends on Municipal Preferred
Shares have been paid, and unless asset coverage (as defined in the 1940 Act)
with respect to Municipal Preferred Shares would be at least 200% after giving
effect to such distributions. See "Municipal Preferred Shares" below.

     The Common Shares have been approved for listing on the New York Stock
Exchange, subject to notice of issuance. The Fund intends to hold annual
meetings of shareholders so long as the Common Shares are listed on a national
securities exchange and such meetings are required as a condition to such
listing.

     Shares of closed-end investment companies may frequently trade at prices
lower than net asset value. Shares of closed-end investment companies like the
Fund that invest predominantly in investment grade municipal bonds have during
some periods traded at prices higher than net asset value and during other
periods have traded at prices lower than net asset value. There can be no
assurance that Common Shares or shares of other municipal funds will trade at a
price higher than net asset value in the future. Net asset value will be reduced
immediately following the offering after payment of the sales load and
organization and offering expenses. Net asset value generally increases when
interest rates decline, and decreases when interest rates rise, and these
changes are likely to be greater in the case of a fund having a leveraged
capital structure such as the Fund will have once it issues Municipal Preferred
Shares. Whether investors will realize gains or losses upon the sale of Common
Shares will not depend upon the Fund's net asset value but will depend entirely
upon whether the market price of the Common Shares at the time of sale is above
or below the original purchase price for the shares. Since the market price of
the Fund's Common Shares will be determined by factors beyond the control of the
Fund, the Fund cannot predict whether the Common Shares will trade at, below, or
above net asset value or at, below or above the initial public offering price.
Accordingly, the Common Shares are designed primarily for long-term investors,
and investors in the Common Shares should not view the Fund as a vehicle for
trading purposes. See "Repurchase of Fund Shares" in this Statement of
Additional Information and the Prospectus under "Use of Leverage and Related
Risks" and "Additional Risk Considerations."

                                      B-12
<PAGE>   66

MUNICIPAL PREFERRED SHARES

     The Declaration authorizes the issuance of an unlimited number of Municipal
Preferred Shares, no par value, in one or more classes or series, with rights as
determined by the Board of Trustees, by action of the Board of Trustees without
the approval of the Common Shareholders.


     The Fund's Board of Trustees has indicated its intention to authorize an
offering of Municipal Preferred Shares (representing approximately 38% of the
Fund's capital immediately after the time the Municipal Preferred Shares are
issued) within approximately one to three months after completion of the
offering of Common Shares, subject to market conditions and to the Board's
continuing belief that leveraging the Fund's capital structure through the
issuance of Municipal Preferred Shares is likely to achieve the benefits to the
Common Shareholders described in this Statement of Additional Information. That
offering would be made through a separate prospectus. Although the terms of the
Municipal Preferred Shares, including their dividend rate, voting rights,
liquidation preference and redemption provisions, will be determined by the
Board of Trustees (subject to applicable law and the Fund's Declaration) if and
when it authorizes a Municipal Preferred Shares offering, the Board has stated
that the initial series of Municipal Preferred Shares would likely pay
cumulative dividends at relatively shorter-term periods (such as 7 days), by
providing for the periodic redetermination of the dividend rate through an
auction or remarketing procedure. The Board of Trustees has indicated that the
preference on distribution, liquidation preference, voting rights and redemption
provisions of the Municipal Preferred Shares will likely be as stated below.


     PREFERENCE ON DISTRIBUTION.  The Municipal Preferred Shares have complete
priority over the Common Shares as to distribution of assets.

     LIQUIDATION PREFERENCE.  In the event of any voluntary or involuntary
liquidation, dissolution or winding up of the affairs of the Fund, holders of
Municipal Preferred Shares will be entitled to receive a preferential
liquidating distribution (expected to equal the original purchase price per
share plus accumulated and unpaid dividends thereon, whether or not earned or
declared) before any distribution of assets is made to holders of Common Shares.
After payment of the full amount of the liquidating distribution to which they
are entitled, holders of Municipal Preferred Shares will not be entitled to any
further participation in any distribution of assets by the Fund. Neither the
sale of all or substantially all the property or business of the Fund, nor the
merger or consolidation of the Fund with or into any Massachusetts business
trust or corporation shall be deemed to be a liquidation, dissolution or winding
up of the Fund.

     VOTING RIGHTS.  In connection with any issuance of Municipal Preferred
Shares, the Fund must comply with Section 18(i) of the Investment Company Act of
1940 (the "1940 Act") which requires, among other things, that Municipal
Preferred Shares be voting shares and have equal voting rights with Common
Shares. Except as otherwise indicated in this Statement of Additional
Information and except as otherwise required by applicable law, holders of
Municipal Preferred Shares will vote together with Common Shareholders as a
single class.

     In connection with the election of the Fund's trustees, holders of
Municipal Preferred Shares, voting as a separate class, will be entitled to
elect two of the Fund's trustees, and the remaining trustees shall be elected by
Common Shareholders and holders of Municipal Preferred Shares, voting together
as a single class. In addition, if at any time dividends (whether or not earned
or declared) on the Fund's outstanding Municipal Preferred Shares shall be
unpaid in an amount equal to two full years' dividends thereon, the holders of
all outstanding Municipal Preferred Shares, voting as a separate class, will be
entitled to elect a majority of the Fund's trustees until all such dividends in
arrears have been paid or declared and set apart for payment.

     The affirmative vote of the holders of a majority of the outstanding
Municipal Preferred Shares of any class or series, as the case may be, voting as
a separate class, will be required to, among other things (1) take certain
actions which would affect the preferences, rights, or powers of such class or
series or (2) authorize or issue any class or series ranking prior to the
Municipal Preferred Shares. Except as may otherwise be required by law, (1) the
affirmative vote of the holders of at least two-thirds of the Municipal
Preferred Shares outstanding at the time, voting as a separate class, will be
required to approve any conversion of the Fund from a closed-end to an open-end
investment company and (2) the affirmative vote of the holders of at least two-

                                      B-13
<PAGE>   67


thirds of the outstanding Municipal Preferred Shares, voting as a separate
class, shall be required to approve any plan of reorganization (as such term is
used in the 1940 Act) adversely affecting such shares, provided however, that
such separate class vote shall be a majority vote if the action in question has
previously been approved, adopted or authorized by the affirmative vote of
two-thirds of the total number of Trustees fixed in accordance with the
Declaration or the By-laws. The affirmative vote of the holders of a majority of
the outstanding Municipal Preferred Shares, voting as a separate class, shall be
required to approve any action not described in the preceding sentence 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 -- Investment Restrictions." The class or series vote of
holders of Municipal Preferred Shares described above shall in each case be in
addition to any separate vote of the requisite percentage of Common Shares and
Municipal Preferred Shares necessary to authorize the action in question.


     The foregoing voting provisions will not apply with respect to the Fund's
Municipal Preferred Shares if, at or prior to the time when a vote is required,
such shares shall have been (1) redeemed or (2) called for redemption and
sufficient funds shall have been deposited in trust to effect such redemption.

     REDEMPTION, PURCHASE AND SALE OF MUNICIPAL PREFERRED SHARES BY THE
FUND.  The terms of the Municipal Preferred Shares may provide that they are
redeemable at certain times, in whole or in part, at the original purchase price
per share plus accumulated dividends, that the Fund may tender for or purchase
Municipal Preferred Shares and that the Fund may subsequently resell any shares
so tendered for or purchased. Any redemption or purchase of Municipal Preferred
Shares by the Fund will reduce the leverage applicable to Common Shares, while
any resale of shares by the Fund will increase such leverage. See "Use of
Leverage and Related Risks" in the Prospectus.

     The discussion above describes the Board of Trustees' present intention
with respect to a possible offering of Municipal Preferred Shares. If the Board
of Trustees determines to authorize such an offering, the terms of the Municipal
Preferred Shares may be the same as, or different from, the terms described
above, subject to applicable law and the Fund's Declaration.

                          REPURCHASE OF COMMON SHARES

     The Fund is a closed-end investment company and as such its shareholders
will not have the right to cause the Fund to redeem their shares. Common Shares
trade in the open market at a price that is a function of several factors,
including net asset value and yield. Although the common shares of a closed-end
investment company such as the Fund that invests substantially all of its assets
in investment grade municipal obligations have generally traded at a premium to
net asset value, such shares have occasionally traded at a discount to net asset
value. The Board of Trustees has currently determined that, at least annually,
it will consider action that might be taken to reduce or eliminate any material
discount from net asset value in respect of Common Shares, which may include the
repurchase of such shares in the open market or in private transactions, the
making of a tender offer for such shares at net asset value, or the conversion
of the Fund to an open-end investment company. There can be no assurance,
however, that the Board of Trustees will decide to take any of these actions, or
that share repurchases or tender offers, if undertaken, will reduce market
discount. In addition, see "Description of Shares -- Municipal Preferred Shares"
for a discussion of the limitations on the Fund's ability to engage in certain
transactions. The staff of the SEC currently requires that any tender offer made
by a closed-end investment company for its shares must be at a price equal to
the net asset value of such shares on the close of business on the last day of
the tender offer. Any service fees incurred in connection with any tender offer
made by the Fund will be borne by the Fund and will not reduce the stated
consideration to be paid to tendering shareholders.

     Subject to its investment limitations, the Fund may borrow to finance the
repurchase of shares or to make a tender offer. Interest on any borrowings to
finance share repurchase transactions or the accumulation of cash by the Fund in
anticipation of share repurchases or tenders will reduce the Fund's net income.
Any share repurchase, tender offer or borrowing that might be approved by the
Board of Trustees would have to comply with the Securities Exchange Act of 1934,
as amended, and the 1940 Act and the rules and regulations thereunder.

                                      B-14
<PAGE>   68


     Although the decision to take action in response to a discount from net
asset value will be made by the Board of Trustees at the time it considers such
issue, it is the Board's present policy, which may be changed by the Board, not
to authorize repurchases of the Fund's Common Shares or a tender offer for such
shares if (1) such transactions, if consummated, would (a) result in the
delisting of the Common Shares from the New York Stock Exchange (the
"Exchange"), or (b) impair the Fund's status as a regulated investment company
under the Code (which would make the Fund a taxable entity, causing the Fund's
income to be taxed at the corporate level in addition to the taxation of
shareholders who receive dividends from the Fund) or as a registered closed-end
investment company under the 1940 Act; (2) the Fund would not be able to
liquidate portfolio securities in an orderly manner and consistent with the
Fund's investment objective and policies in order to repurchase shares; or (3)
there is, in the Board's judgment, any (a) material legal action or proceeding
instituted or threatened challenging such transactions or otherwise materially
adversely affecting the Fund, (b) general suspension of or limitation on prices
for trading securities on the Exchange, (c) declaration of a banking moratorium
by federal or state authorities or any suspension of payment by United States or
New York State banks in which the Fund invests, (d) material limitation
affecting the Fund or the issuers of its portfolio securities by federal or
state authorities on the extension of credit by lending institutions or on the
exchange of foreign currency, (e) commencement of war, armed hostilities or
other international or national calamity directly or indirectly involving the
United States, or (f) other event or condition which would have a material
adverse effect (including any adverse tax effect) on the Fund or its
shareholders if shares were repurchased. The Board of Trustees may in the future
modify these conditions in light of experience. Before deciding whether to take
any action in response to a discount from net asset value, the Board of Trustees
would consider all relevant factors, including the extent and duration of the
discount, the liquidity of the Fund's portfolio, the impact of any action that
might be taken on the Fund or its shareholders, and market considerations. Based
on these considerations, even if the Fund's Common Shares should trade at a
discount, the Board may determine that, in the interest of the Fund and its
shareholders, no action should be taken.


                                      B-15
<PAGE>   69

                       MISCELLANEOUS INVESTMENT PRACTICES


SHORT-TERM TRADING



     In seeking to accomplish the Fund's investment objective, the Advisor may
buy or sell portfolio securities whenever the Advisor believes it appropriate to
do so. In deciding whether to sell a portfolio security, the Advisor does not
consider how long the Fund has owned the security. From time to time the Fund
may buy securities intending to seek short-term trading profits. A change in the
securities held by the Fund is known as "portfolio turnover" and generally
involves some expense to the Fund. This expense may include brokerage
commissions or dealer markups and other transaction costs on both the sale of
securities and the reinvestment of the proceeds in other securities. If sales of
portfolio securities cause the Fund to realize net short-term capital gain, such
gain generally will be taxable as ordinary income. As a result of the Fund's
investment policies, under certain market conditions the Fund's portfolio
turnover rate may be higher than that of other investment companies. Portfolio
turnover rate for a fiscal year is the ratio of the lesser of purchases or sales
of portfolio securities to the monthly average of the value of portfolio
securities -- excluding securities whose maturities at acquisition were one year
or less. The Fund's portfolio turnover rate is not a limiting factor when the
Advisor considers a change in the Fund's portfolio.



LOWER-RATED SECURITIES



     The Fund may invest up to 20% of its total assets in municipal bonds that,
at the time of investment, are rated Ba or B by Moody's or BB or B by Standard &
Poor's or comparably rated by another Rating Agency and unrated municipal bonds
considered to be of comparable quality by the Advisor. The Fund may not invest
in bonds rated below B by Moody's or Standard & Poor's or comparably rated by
another Rating Agency. Bonds rated Ba/BB and below are regarded as having
predominantly speculative characteristics with respect to capacity to pay
interest and repay principal, and are commonly referred to as "junk bonds."
These risks include greater sensitivity to a general economic downturn and less
secondary market trading. The lower ratings of certain securities held by the
Fund reflect a greater possibility that adverse changes in the financial
condition of the issuer or in general economic conditions, or both, or an
unanticipated rise in interest rates, may impair the ability of the issuer to
make payments of interest and principal. The inability (or perceived inability)
of issuers to make timely payments of interest and principal would likely make
the values of securities held by the Fund more volatile and could limit the
Fund's ability to sell its securities at prices approximating the values the
Fund had placed on such securities. In the absence of a liquid trading market
for securities held by it, the Fund at times may be unable to establish the fair
value for such securities.


     Securities ratings are based largely on the issuer's historical financial
condition and the rating agencies' analysis at the time of rating. Consequently,
the rating assigned to any particular security is not necessarily a reflection
of the issuer's current financial condition, which may be better or worse than
the rating would indicate. In addition, the rating assigned to a security by
Moody's or Standard & Poor's (or by any other nationally recognized securities
rating organization) does not reflect an assessment of the volatility of the
security's market value or the liquidity of an investment in the security. See
Appendix A for a description of security ratings.

     Like those of other fixed-income securities, the values of lower-rated
securities fluctuate in response to changes in interest rates. A decrease in
interest rates will generally result in an increase in the value of the Fund's
assets. Conversely, during periods of rising interest rates, the value of the
Fund's assets will generally decline. The values of lower-rated securities may
often be affected to a greater extent by changes in general economic conditions
and business conditions affecting the issuers of such securities and their
industries. Negative publicity or investor perceptions may also adversely affect
the values of lower-rated securities. Changes by recognized rating services in
their ratings of any fixed-income security and changes in the ability of an
issuer to make payments of interest and principal may also affect the value of
these investments. Changes in the value of portfolio securities generally will
not affect income derived from these securities, but will affect the Fund's net
asset value. The Fund will not necessarily dispose of a security when its rating
is reduced below its rating at the time of purchase. However, the Advisor will
monitor the investment to determine whether its retention will assist in meeting
the Fund's investment objective.

                                      B-16
<PAGE>   70

     Issuers of lower-rated securities are often highly leveraged, so that their
ability to service their debt obligations during an economic downturn or during
sustained periods of rising interest rates may be impaired. Such issuers may not
have more traditional methods of financing available to them and may be unable
to repay outstanding obligations at maturity by refinancing. The risk of loss
due to default in payment of interest or repayment of principal by such issuers
is significantly greater because such securities frequently are unsecured and
subordinated to the prior payment of senior indebtedness.

     At times, a substantial portion of the Fund's assets may be invested in
securities as to which the Fund, by itself or together with other Funds and
accounts managed by the Advisor and its affiliates, holds all or a major portion
of the securities outstanding. Although the Advisor generally considers such
securities to be liquid because of the availability of an institutional market
for such securities, it is possible that, under adverse market or economic
conditions or in the event of adverse changes in the financial condition of the
issuer, the Fund could find it more difficult to sell these securities when the
Advisor believes it advisable to do so or may be able to sell the securities
only at prices lower than if they were more widely held. Under these
circumstances, it may also be more difficult to determine the fair value of such
securities for purposes of computing the Fund's net asset value. In order to
enforce its rights in the event of a default under such securities, the Fund may
be required to participate in various legal proceedings or take possession of
and manage assets securing the issuer's obligations on such securities. This
could increase the Fund's operating expenses and adversely affect the Fund's net
asset value.

     Certain securities held by the Fund may permit the issuer at its option to
"call," or redeem, its securities. If an issuer were to redeem securities held
by the Fund during a time of declining interest rates, the Fund might not be
able to reinvest the proceeds in securities providing the same investment return
as the securities redeemed. The Fund may invest without limit in such bonds.


     To the extent the Fund invests in lower-rated or unrated securities, the
achievement of the Fund's goals is more dependent on the Advisor's investment
analysis than would be the case if the Fund were investing in investment grade
securities.


PRIVATE PLACEMENTS

     The Fund may invest in securities that are purchased in private placements
and, accordingly, may be subject to restrictions on resale as a matter of
contract or under federal securities laws. Because there may be relatively few
potential purchasers for such investments, especially under adverse market or
economic conditions or in the event of adverse changes in the financial
condition of the issuer, the Fund could find it more difficult to sell such
securities when the Advisor believes it advisable to do so or may be able to
sell such securities only at prices lower than if such securities were more
widely held. At times, it may also be more difficult to determine the fair value
of such securities for purposes of computing the Fund's net asset value.

STEP COUPON BONDS (STEPS)

     The Fund may invest in debt securities which do not pay interest for a
stated period of time and then pay interest at a series of different rates for a
series of periods. In addition to the risks associated with the credit rating of
the issuers, these securities are subject to the volatility risk of zero coupon
bonds for the period when no interest is paid.

TENDER OPTION BONDS

     A tender option bond is a municipal security (generally held pursuant to a
custodial arrangement) having a relatively long maturity and bearing interest at
a fixed rate substantially higher than prevailing short-term tax-exempt rates
that has been coupled with the agreement of a third party, such as a bank,
broker-dealer or other financial institution, pursuant to which such institution
grants the security holders the option, at periodic intervals, to tender their
securities to the institution and receive the face value thereof. As
consideration for providing the option, the financial institution receives
periodic fees equal to the difference between the municipal security's fixed
coupon rate and the rate, as determined by a remarketing or similar agent at or
near the commencement of such period, that would cause the securities, coupled
with the tender option, to trade at

                                      B-17
<PAGE>   71

par on the date of such determination. Thus, after payment of this fee, the
security holder effectively holds a demand obligation that bears interest at the
prevailing short-term tax-exempt rate. The Advisor will consider on an ongoing
basis the creditworthiness of the issuer of the underlying municipal securities,
of any custodian, and of the third-party provider of the tender option. In
certain instances and for certain tender option bonds, the option may be
terminable in the event of a default in payment of principal or interest on the
underlying municipal securities and for other reasons.

PAY-IN-KIND (PIK) SECURITIES

     The Fund may invest in securities which pay interest either in cash or
additional securities at the issuer's option. These securities are generally
high yield securities and in addition to the other risks associated with
investing in high yield securities are subject to the risks that the interest
payments, which consist of additional securities, will also be subject to the
risks of high yield securities.

MONEY MARKET INSTRUMENTS

     The Fund may invest in short-term money market instruments as follows:
Government obligations are issued by the U.S. or foreign governments, their
subdivisions, agencies and instrumentalities. Supranational obligations are
issued by supranational entities and are generally designed to promote economic
improvements. Certificates of deposit are issued against deposits in a
commercial bank with a defined return and maturity. Banker's acceptances are
used to finance the import, export or storage of goods and are "accepted" when
guaranteed at maturity by a bank. Commercial paper is promissory notes issued by
businesses to finance short-term needs (including those with floating or
variable interest rates, or including a frequent interval put feature).
Short-term corporate obligations are bonds and notes (with one year or less to
maturity at the time of purchase) issued by businesses to finance long-term
needs.

FORWARD COMMITMENTS

     The Fund may enter into contracts to purchase securities for a fixed price
at a future date beyond customary settlement time ("forward commitments") if the
Fund sets aside, on the books and records of its custodian, liquid assets in an
amount sufficient to meet the purchase price, or if the Fund enters into
offsetting contracts for the forward sale of other securities it owns. In the
case of to-be-announced ("TBA") purchase commitments, the unit price and the
estimated principal amount are established when the Fund enters into a contract,
with the actual principal amount being within a specified range of the estimate.
Forward commitments may be considered securities in themselves, and involve a
risk of loss if the value of the security to be purchased declines prior to the
settlement date, which risk is in addition to the risk of decline in the value
of the Fund's other assets. Where such purchases are made through dealers, the
Fund relies on the dealer to consummate the sale. The dealer's failure to do so
may result in the loss to the Fund of an advantageous yield or price. Although
the Fund will generally enter into forward commitments with the intention of
acquiring securities for its portfolio or for delivery pursuant to options
contracts it has entered into, the Fund may dispose of a commitment prior to
settlement if the Advisor deems it appropriate to do so. The Fund may realize
short-term profits or losses on the sale of forward commitments.

     The Fund may enter into TBA sale commitments to hedge its portfolio
positions or to sell securities it owns under delayed delivery arrangements.
Proceeds of TBA sale commitments are not received until the contractual
settlement date. During the time a TBA sale commitment is outstanding,
equivalent deliverable securities, or an offsetting TBA purchase commitment
deliverable on or before the sale commitment date, are held as "cover" for the
transaction. Unsettled TBA sale commitments are valued at current market value
of the underlying securities. If the TBA sale commitment is closed through the
acquisition of an offsetting purchase commitment, the Fund realizes a gain or
loss on the commitment without regard to any unrealized gain or loss on the
underlying security. If the Fund delivers securities under the commitment, the
Fund realizes a gain or loss from the sale of the securities based upon the unit
price established at the date the commitment was entered into.

                                      B-18
<PAGE>   72

REPURCHASE AGREEMENTS

     The Fund may enter into repurchase agreements. A repurchase agreement is a
contract under which the Fund acquires a security for a relatively short period
(usually not more than one week), subject to the obligation of the seller to
repurchase and the Fund to resell such security at a fixed time and price
(representing the Fund's cost plus interest). It is the Fund's present intention
to enter into repurchase agreements only with commercial banks and registered
broker-dealers and only with respect to obligations of the U.S. government or
its agencies or instrumentalities. Repurchase agreements may also be viewed as
loans made by the Fund which are collateralized by the securities subject to
repurchase. The Advisor will monitor such transactions to ensure that the value
of the underlying securities will be at least equal at all times to the total
amount of the repurchase obligation, including the interest factor. If the
seller defaults, the Fund could realize a loss on the sale of the underlying
security to the extent that the proceeds of sale, including accrued interest,
are less than the resale price provided in the agreement, including interest. In
addition, if the seller should be involved in bankruptcy or insolvency
proceedings, the Fund may incur delay and costs in selling the underlying
security or may suffer a loss of principal and interest if the Fund is treated
as an unsecured creditor and required to return the underlying collateral to the
seller's estate.

     Pursuant to an exemptive order issued by the Securities and Exchange
Commission, the Fund may transfer uninvested cash balances into a joint account,
along with cash of other Liberty Funds and certain other accounts. These
balances may be invested in one or more repurchase agreements and/or short-term
money market instruments.

OPTIONS ON SECURITIES

     WRITING COVERED OPTIONS.  The Fund may write covered call options and
covered put options on optionable securities held in its portfolio, when in the
opinion of the Advisor such transactions are consistent with the Fund's
investment objective and policies. Call options written by the Fund give the
purchaser the right to buy the underlying securities from the Fund at a stated
exercise price; put options give the purchaser the right to sell the underlying
securities to the Fund at a stated price.

     The Fund may write only covered options, which means that, so long as the
Fund is obligated as the writer of a call option, it will own the underlying
securities subject to the option (or comparable securities satisfying the cover
requirements of securities exchanges). In the case of put options, the Fund will
hold cash and/or high-grade short-term debt obligations equal to the price to be
paid if the option is exercised. In addition, the Fund will be considered to
have covered a put or call option if and to the extent that it holds an option
that offsets some or all of the risk of the option it has written. The Fund may
write combinations of covered puts and calls on the same underlying security.

     The Fund will receive a premium from writing a put or 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. The amount of the premium
reflects, among other things, the relationship between the exercise price and
the current market value of the underlying security, the volatility of the
underlying security, the amount of time remaining until expiration, current
interest rates and the effect of supply and demand in the options market and in
the market for the underlying security. By writing a call option, the Fund
limits its opportunity to profit from any increase in the market value of the
underlying security above the exercise price of the option but continues to bear
the risk of a decline in the value of the underlying security. By writing a put
option, the Fund assumes the risk that it may be required to purchase the
underlying security for an exercise price higher than its then-current market
value, resulting in a potential capital loss unless the security subsequently
appreciates in value.

     The Fund may terminate an option that it has written prior to its
expiration by entering into a closing purchase transaction in which it purchases
an offsetting option. The Fund realizes a profit or loss from a closing
transaction if the cost of the transaction (option premium plus transaction
costs) is less or more than the premium received from writing the option. If the
Fund writes a call option but does not own the underlying security, and when it
writes a put option, the Fund may be required to deposit cash or securities with
its broker as "margin," or collateral, for its obligation to buy or sell the
underlying security. As the value of the underlying security varies, the Fund
may have to deposit additional margin with the broker. Margin

                                      B-19
<PAGE>   73

requirements are complex and are fixed by individual brokers, subject to minimum
requirements currently imposed by the Federal Reserve Board and by stock
exchanges and other self-regulatory organizations.

     PURCHASING PUT OPTIONS.  The Fund may purchase put options to protect its
portfolio holdings in an underlying security against a decline in market value.
Such protection is provided during the life of the put option since the Fund, as
holder of the option, is able to sell the underlying security at the put
exercise price regardless of any decline in the underlying security's market
price. In order for a put option to be profitable, the market price of the
underlying security must decline sufficiently below the exercise price to cover
the premium and transaction costs. By using put options in this manner, the Fund
will reduce any profit it might otherwise have realized from appreciation of the
underlying security by the premium paid for the put option and by transaction
costs.

     PURCHASING CALL OPTIONS.  The Fund may purchase call options to hedge
against an increase in the price of securities that the Fund wants ultimately to
buy. Such hedge protection is provided during the life of the call option since
the Fund, as holder of the call option, is able to buy the underlying security
at the exercise price regardless of any increase in the underlying security's
market price. In order for a call option to be profitable, the market price of
the underlying security must rise sufficiently above the exercise price to cover
the premium and transaction costs.

RISK FACTORS IN OPTIONS TRANSACTIONS

     The successful use of the Fund's options strategies depends on the ability
of the Advisor to forecast interest rate and market movements correctly. For
example, if the Fund were to write a call option based on the Advisor's
expectation that the price of the underlying security would fall, but the price
were to rise instead, the Fund could be required to sell the security upon
exercise at a price below the current market price. Similarly, if the Fund were
to write a put option based on the Advisor's expectation that the price of the
underlying security would rise, but the price were to fall instead, the Fund
could be required to purchase the security upon exercise at a price higher than
the current market price.

     When the Fund purchases an option, it runs the risk that it will lose its
entire investment in the option in a relatively short period of time, unless the
Fund exercises the option or enters into a closing sale transaction before the
option's expiration. If the price of the underlying security does not rise (in
the case of a call) or fall (in the case of a put) to an extent sufficient to
cover the option premium and transaction costs, the Fund will lose part or all
of its investment in the option. This contrasts with an investment by the Fund
in the underlying security, since the Fund will not realize a loss if the
security's price does not change.

     The effective use of options also depends on the Fund's ability to
terminate option positions at times when the Advisor deems it desirable to do
so. There is no assurance that the Fund will be able to effect closing
transactions at any particular time or at an acceptable price.

     If a secondary market in options were to become unavailable, the Fund could
no longer engage in closing transactions. Lack of investor interest might
adversely affect the liquidity of the market for particular options or series of
options. A market may discontinue trading of a particular option or options
generally. In addition, a market could become temporarily unavailable if unusual
events -- such as volume in excess of trading or clearing capability -- were to
interrupt its normal operations.

     A market may at times find it necessary to impose restrictions on
particular types of options transactions, such as opening transactions. For
example, if an underlying security ceases to meet qualifications imposed by the
market or the Options Clearing Corporation, new series of options on that
security will no longer be opened to replace expiring series, and opening
transactions in existing series may be prohibited. If an options market were to
become unavailable, the Fund as a holder of an option would be able to realize
profits or limit losses only by exercising the option, and the Fund, as option
writer, would remain obligated under the option until expiration or exercise.

     Disruptions in the markets for the securities underlying options purchased
or sold by the Fund could result in losses on the options. If trading is
interrupted in an underlying security, the trading of options on that security
is normally halted as well. As a result, the Fund as purchaser or writer of an
option will be unable to

                                      B-20
<PAGE>   74

close out its positions until options trading resumes, and it may be faced with
considerable losses if trading in the security reopens at a substantially
different price. In addition, the Options Clearing Corporation or other options
markets may impose exercise restrictions. If a prohibition on exercise is
imposed at the time when trading in the option has also been halted, the Fund as
purchaser or writer of an option will be locked into its position until one of
the two restrictions has been lifted. If the Options Clearing Corporation were
to determine that the available supply of an underlying security appears
insufficient to permit delivery by the writers of all outstanding calls in the
event of exercise, it may prohibit indefinitely the exercise of put options. The
Fund, as holder of such a put option, could lose its entire investment if the
prohibition remained in effect until the put option's expiration.

FUTURES CONTRACTS AND RELATED OPTIONS

     Subject to applicable law, the Fund may invest without limit in the types
of futures contracts and related options identified in the Prospectus for
hedging and non-hedging purposes, such as to manage the effective duration of
the Fund's portfolio or as a substitute for direct investment. A financial
futures contract sale creates an obligation by the seller to deliver the type of
financial instrument called for in the contract in a specified delivery month
for a stated price. A financial futures contract purchase creates an obligation
by the purchaser to take delivery of the type of financial instrument called for
in the contract in a specified delivery month at a stated price. The
determination is made in accordance with the rules of the exchange on which the
futures contract sale or purchase was made. Futures contracts are traded in the
United States only on commodity exchanges or boards of trade -- known as
"contract markets" -- approved for such trading by the Commodity Futures Trading
Commission (the "CFTC"), and must be executed through a futures commission
merchant or brokerage firm which is a member of the relevant contract market.

     Although futures contracts (other than index futures) by their terms call
for actual delivery or acceptance of commodities or securities, in most cases
the contracts are closed out before the settlement date without the making or
taking of delivery. Closing out a futures contract sale is effected by
purchasing a futures contract for the same aggregate amount of the specific type
of financial instrument or commodity with the same delivery date. If the price
of the initial sale of the futures contract exceeds the price of the offsetting
purchase, the seller is paid the difference and realizes a gain. Conversely, if
the price of the offsetting purchase exceeds the price of the initial sale, the
seller realizes a loss. If the Fund is unable to enter into a closing
transaction, the amount of the Fund's potential loss is unlimited. The closing
out of a futures contract purchase is effected by the purchaser's entering into
a futures contract sale. If the offsetting sale price exceeds the purchase
price, the purchaser realizes a gain, and if the purchase price exceeds the
offsetting sale price, the purchaser realizes a loss. In general, 40% of the
gain or loss arising from the closing out of a futures contract traded on an
exchange approved by the CFTC is treated as short-term gain or loss, and 60% is
treated as long-term gain or loss.

     Unlike when the Fund purchases or sells a security, no price is paid or
received by the Fund upon the purchase or sale of a futures contract. Upon
entering into a contract, the Fund is required to deposit with its custodian in
a segregated account in the name of the futures broker an amount of liquid
assets. This amount is known as "initial margin." The nature of initial margin
in futures transactions is different from that of margin in security
transactions in that futures contract margin does not involve the borrowing of
funds to finance the transactions. Rather, initial margin is similar to a
performance bond or good faith deposit which is returned to the Fund upon
termination of the futures contract, assuming all contractual obligations have
been satisfied. Futures contracts also involve brokerage costs.

     Subsequent payments, called "variation margin" or "maintenance margin," to
and from the broker (or the custodian) are made on a daily basis as the price of
the underlying security or commodity fluctuates, making the long and short
positions in the futures contract more or less valuable, a process known as
"marking to the market." For example, when the Fund has purchased a futures
contract on a security and the price of the underlying security has risen, that
position will have increased in value and the Fund will receive from the broker
a variation margin payment based on that increase in value. Conversely, when the
Fund has purchased a security futures contract and the price of the underlying
security has declined, the position would be less valuable and the Fund would be
required to make a variation margin payment to the broker.

                                      B-21
<PAGE>   75

     The Fund may elect to close some or all of its futures positions at any
time prior to their expiration in order to reduce or eliminate a position then
currently held by the Fund. The Fund may close its positions by taking opposite
positions which will operate to terminate the Fund's position in the futures
contracts. Final determinations of variation margin are then made, additional
cash is required to be paid by or released to the Fund, and the Fund realizes a
loss or a gain. Such closing transactions involve additional commission costs.

     The Fund does not intend to purchase or sell futures or related options for
other than hedging purposes if, as a result, the sum of the initial margin
deposits on the Fund's existing futures and related options positions and
premiums paid for outstanding options on futures contracts would exceed 5% of
the Fund's net assets.

     OPTIONS ON FUTURES CONTRACTS.  The Fund may purchase and write call and put
options on futures contracts and it may buy or sell and enter into closing
transactions with respect to such options to terminate existing positions.
Options on futures contracts give the purchaser the right, in return for the
premium paid, to assume a position in a futures contract at the specified option
exercise price at any time during the period of the option. The Fund may use
options on futures contracts in lieu of writing or buying options directly on
the underlying securities or purchasing and selling the underlying futures
contracts. For example, to hedge against a possible decrease in the value of its
portfolio securities, the Fund may purchase put options or write call options on
futures contracts rather than selling futures contracts. Similarly, the Fund may
purchase call options or write put options on futures contracts as a substitute
for the purchase of futures contracts to hedge against a possible increase in
the price of securities which the Fund expects to purchase. Such options
generally operate in the same manner as options purchased or written directly on
the underlying investments.

     As with options on securities, the holder or writer of an option may
terminate his position by selling or purchasing an offsetting option. There is
no guarantee that such closing transactions can be effected.

     The Fund will be required to deposit initial margin and maintenance margin
with respect to put and call options on futures contracts written by it pursuant
to brokers' requirements, similar to those described above in connection with
the discussion of futures contracts.

     RISKS OF TRANSACTIONS IN FUTURES CONTRACTS AND RELATED OPTIONS.  Successful
use of futures contracts by the Fund is subject to the Advisor's ability to
predict movements in various factors affecting securities markets, including
interest rates. Compared to the purchase or sale of futures contracts, the
purchase of call or put options on futures contracts involves less potential
risk to the Fund because the maximum amount at risk is the premium paid for the
options (plus transaction costs). However, there may be circumstances when the
purchase of a call or put option on a futures contract would result in a loss to
the Fund when the purchase or sale of a futures contract would not, such as when
there is no movement in the prices of the hedged investments. The writing of an
option on a futures contract involves risks similar to those risks relating to
the sale of futures contracts.

     The use of options and futures strategies also involves the risk of
imperfect correlation among movements in the prices of the securities underlying
the futures and options purchased and sold by the Fund, of the options and
futures contracts themselves, and, in the case of hedging transactions, of the
securities which are the subject of a hedge.

     There is no assurance that higher than normal trading activity or other
unforeseen events might not, at times, render certain market clearing facilities
inadequate, and thereby result in the institution by exchanges of special
procedures which may interfere with the timely execution of customer orders.

     To reduce or eliminate a position held by the Fund, the Fund may seek to
close out such position. The ability to establish and close out positions will
be subject to the development and maintenance of a liquid secondary market. It
is not certain that this market will develop or continue to exist for a
particular futures contract or option. Reasons for the absence of a liquid
secondary market on an exchange include the following: (i) there may be
insufficient trading interest in certain contracts or options, (ii) restrictions
may be imposed by an exchange on opening transactions or closing transactions or
both, (iii) trading halts, suspensions or other restrictions may be imposed with
respect to particular classes or series of contracts or options, or underlying
securities, (iv) unusual or unforeseen circumstances may interrupt normal
operations on an exchange, (v) the facilities of an exchange or a clearing
corporation may not at all times be adequate to handle current trading

                                      B-22
<PAGE>   76

volume, or (vi) one or more exchanges could, for economic or other reasons,
decide or be compelled at some future date to discontinue the trading of
contracts or options (or a particular class or series of contracts or options),
in which event the secondary market on that exchange for such contracts or
options (or in the class or series of contracts or options) would cease to
exist, although outstanding contracts or options on the exchange that had been
issued by a clearing corporation as a result of trades on that exchange would
continue to be exercisable in accordance with their terms.

     U.S. TREASURY SECURITY FUTURES CONTRACTS AND OPTIONS. U.S. Treasury
security futures contracts require the seller to deliver, or the purchaser to
take delivery of, the type of U.S. Treasury security called for in the contract
at a specified date and price. Options on U.S. Treasury security futures
contracts give the purchaser the right, in return for the premium paid, to
assume a position in a U.S. Treasury security futures contract at the specified
option exercise price at any time during the period of the option.

     Successful use of U.S. Treasury security futures contracts by the Fund is
subject to the Advisor's ability to predict movements in the direction of
interest rates and other factors affecting markets for debt securities. For
example, if the Fund has sold U.S. Treasury security futures contracts in order
to hedge against the possibility of an increase in interest rates which would
adversely affect securities held in its portfolio, and the prices of the Fund's
securities increase instead as a result of a decline in interest rates, the Fund
would be likely to lose part or all of the benefit of the increased value of its
securities which it has hedged because it will have offsetting losses in its
futures positions. In addition, in such situations, if the Fund has insufficient
cash, it may have to sell securities to meet daily maintenance margin
requirements at a time when it may be disadvantageous to do so.

     There is also a risk that price movements in U.S. Treasury security futures
contracts and related options will not correlate closely with price movements in
markets for particular securities. For example, if the Fund has hedged against a
decline in the values of high yield corporate securities held by it by selling
Treasury security futures and the values of Treasury securities subsequently
increase while the values of its high yield corporate securities decrease, the
Fund would incur losses on both the Treasury security futures contracts written
by it and the high yield corporate securities held in its portfolio.

     INDEX FUTURES CONTRACTS.  An index futures contract is a contract to buy or
sell units of an index at a specified future date at a price agreed upon when
the contract is made. Entering into a contract to buy units of an index is
commonly referred to as buying or purchasing a contract or holding a long
position in the index. Entering into a contract to sell units of an index is
commonly referred to as selling a contract or holding a short position. A unit
is the current value of the index. The Fund may enter into stock index futures
contracts, debt index futures contracts, or other index futures contracts
appropriate to its objective. The Fund may also purchase and sell options on
index futures contracts.

     There are several risks in connection with the use by the Fund of index
futures. One risk arises because of the imperfect correlation between movements
in the prices of the index futures and movements in the prices of securities
which are the subject of the hedge. The Advisor will, however, attempt to reduce
this risk by buying or selling, to the extent possible, futures on indices the
movements of which will, in its judgment, have a significant correlation with
movements in the prices of the securities sought to be hedged.

     Successful use of index futures by the Fund is also subject to the
Advisor's ability to predict movements in the direction of the market. For
example, it is possible that, where the Fund has sold futures to hedge its
portfolio against a decline in the market, the index on which the futures are
written may advance and the value of securities held in the Fund's portfolio may
decline. If this occurred, the Fund would lose money on the futures and also
experience a decline in value in its portfolio securities. It is also possible
that, if the Fund has hedged against the possibility of a decline in the market
adversely affecting securities held in its portfolio and securities prices
increase instead, the Fund will lose part or all of the benefit of the increased
value of those securities it has hedged because it will have offsetting losses
in its futures positions. In addition, in such situations, if the Fund has
insufficient cash, it may have to sell securities to meet daily variation margin
requirements at a time when it is disadvantageous to do so.

                                      B-23
<PAGE>   77

     In addition to the possibility that there may be an imperfect correlation,
or no correlation at all, between movements in the index futures and the portion
of the portfolio being hedged, the prices of index futures may not correlate
perfectly with movements in the underlying index due to certain market
distortions. First, all participants in the futures market are subject to margin
deposit and maintenance requirements. Rather than meeting additional margin
deposit requirements, investors may close futures contracts through offsetting
transactions which could distort the normal relationship between the index and
futures markets. Second, margin requirements in the futures market are less
onerous than margin requirements in the securities market, and as a result the
futures market may attract more speculators than the securities market does.
Increased participation by speculators in the futures market may also cause
temporary price distortions. Due to the possibility of price distortions in the
futures market and also because of the imperfect correlation between movements
in the index and movements in the prices of index futures, even a correct
forecast of general market trends by the Advisor may still not result in a
profitable position over a short time period.

     OPTIONS ON INDEX FUTURES.  Options on index futures are similar to options
on securities except that options on index futures give the purchaser the right,
in return for the premium paid, to assume a position in an index futures
contract (a long position if the option is a call and a short position if the
option is a put) at a specified exercise price at any time during the period of
the option. Upon exercise of the option, the delivery of the futures position by
the writer of the option to the holder of the option will be accompanied by
delivery of the accumulated balance in the writer's futures margin account which
represents the amount by which the market price of the index futures contract,
at exercise, exceeds (in the case of a call) or is less than (in the case of a
put) the exercise price of the option on the index future. If an option is
exercised on the last trading day prior to its expiration date, the settlement
will be made entirely in cash equal to the difference between the exercise price
of the option and the closing level of the index on which the future is based on
the expiration date. Purchasers of options who fail to exercise their options
prior to the exercise date suffer a loss of the premium paid.

OPTIONS ON INDICES

     As an alternative to purchasing call and put options on index futures, the
Fund may purchase and sell call and put options on the underlying indices
themselves. Such options would be used in a manner identical to the use of
options on index futures.

INDEX WARRANTS

     The Fund may purchase put warrants and call warrants whose values vary
depending on the change in the value of one or more specified securities indices
("index warrants"). Index warrants are generally issued by banks or other
financial institutions and give the holder the right, at any time during the
term of the warrant, to receive upon exercise of the warrant a cash payment from
the issuer based on the value of the underlying index at the time of exercise.
In general, if the value of the underlying index rises above the exercise price
of the index warrant, the holder of a call warrant will be entitled to receive a
cash payment from the issuer upon exercise based on the difference between the
value of the index and the exercise price of the warrant. If the value of the
underlying index falls, the holder of a put warrant will be entitled to receive
a cash payment from the issuer upon exercise based on the difference between the
exercise price of the warrant and the value of the index. The holder of a
warrant would not be entitled to any payments from the issuer at any time when,
in the case of a call warrant, the exercise price is greater than the value of
the underlying index, or, in the case of a put warrant, the exercise price is
less than the value of the underlying index. If the Fund were not to exercise an
index warrant prior to its expiration, then the Fund would lose the amount of
the purchase price paid by it for the warrant.

     The Fund will normally use index warrants in a manner similar to its use of
options on securities indices. The risks of the Fund's use of index warrants are
generally similar to those relating to its use of index options. Unlike most
index options, however, index warrants are issued in limited amounts and are not
obligations of a regulated clearing agency, but are backed only by the credit of
the bank or other institution which issues the warrant. Also, index warrants
generally have longer terms than index options. Although the Fund will normally
invest only in exchange-listed warrants, index warrants are not likely to be as
liquid as certain index

                                      B-24
<PAGE>   78

options backed by a recognized clearing agency. In addition, the terms of index
warrants may limit the Fund's ability to exercise the warrants at such time, or
in such quantities, as the Fund would otherwise wish to do.

ZERO COUPON SECURITIES (ZEROS)

     The Fund may invest in zero coupon securities, which are securities issued
at a significant discount from face value and pay interest only at maturity
rather than at intervals during the life of the security and in certificates
representing undivided interests in the interest or principal of mortgage-backed
securities (interest only/principal only), which tend to be more volatile than
other types of securities. The Fund will accrue and distribute income from zero
coupon and stripped securities and certificates on a current basis and may have
to sell securities to generate cash for distributions.

INVERSE FLOATERS

     Inverse floaters are derivative securities whose interest rates vary
inversely to changes in short-term interest rates and whose values fluctuate
inversely to changes in long-term interest rates. The value of certain inverse
floaters will fluctuate substantially more in response to a given change in
long-term rates than would a traditional debt security. These securities have
investment characteristics similar to leverage, in that interest rate changes
have a magnified effect on the value of inverse floaters.


ADDITIONAL INFORMATION ON MUNICIPAL OBLIGATION INSURANCE



     ORIGINAL ISSUE INSURANCE.  If interest or principal on a Municipal
Obligation is due, but the issuer fails to pay it, the insurer will make
payments in the amount due to its fiscal agent no later than one business day
after the insurer has been notified of the issuer's nonpayment. The fiscal agent
will pay the amount due to the Fund after the fiscal agent receives evidence of
the Fund's right to receive payment of principal and/or interest, and evidence
that all of the rights of payment due shall thereupon vest in the insurer. When
the insurer pays the Fund the payment due from the issuer, the insurer will
succeed to the Fund's rights to that payment.



     PORTFOLIO INSURANCE.  Each portfolio insurance policy will be
noncancellable and will remain in effect so long as (i) the Fund is in
existence, (ii) the Fund continues to own the Municipal Obligations covered by
the policy, and (iii) the Fund timely pays the premiums for the policy. Each
insurer generally will reserve the right at any time upon 90 days' written
notice to the Fund to refuse to insure any additional Municipal Obligations the
Fund buys after the effective date of the notice. The Fund's Board of Trustees
will generally reserve the right to terminate each policy upon seven days'
written notice to an insurer if it determines that the cost of the policy is not
reasonable in relation to the value of the insurance to the Fund.


SPECIAL CONSIDERATIONS RELATING TO CALIFORNIA MUNICIPAL OBLIGATIONS

     Factors pertaining to the Fund's investment in California Municipal
Obligations are set forth in Appendix B -- "Special Considerations Relating to
California."

                                      B-25
<PAGE>   79

                                  TAX MATTERS

FEDERAL INCOME TAX MATTERS

  Federal Taxation of the Fund


     The ability of the Fund to qualify for taxation as a regulated investment
company under Subchapter M of the Code requires, among other things, that the
Fund satisfy income and asset diversification tests, and distribute
substantially all its income to its shareholders, as described below.
Specifically, in order to qualify as a regulated investment company, the Fund
must derive at least 90% of its gross income from dividends, interest, certain
payments with respect to securities loans, gains from the sale or other
disposition of stock or securities or foreign currencies (to the extent such
currency gains are directly related to the regulated investment company's
principal business of investing in stock or securities, or options and futures
with respect to stock or securities) and other income (including but not limited
to gains from options, futures or forward contracts) derived with respect to its
business of investing in such stock, securities or currencies. The Fund must
also satisfy an asset diversification test. Under this test, at the close of
each quarter of the Fund's taxable year, at least 50% of the value of the Fund's
assets must consist of cash and cash items (including receivables), U.S.
Government securities, securities of other regulated investment companies, and
securities of other issuers (as to which the Fund has not invested more than 5%
of the value of the Fund's total assets in securities of such issuer and as to
which the Fund does not hold more than 10% of the outstanding voting securities
of such issuer), and no more than 25% of the value of its total assets may be
invested in the securities of any one issuer (other than U.S. Government
securities and securities of other regulated interment companies), or in two or
more issuers which the Fund controls and which are engaged in the same or
similar trades or businesses or related trades or businesses. Finally, the Fund
must distribute to its shareholders with respect to each year at least 90% of
the sum of (1) its net tax-exempt interest income and (2) its taxable net
investment income (including, generally, taxable interest, dividends and certain
other income, less certain expenses, and the excess, if any, of net short-term
capital gain over net long-term capital loss) (the "Distribution Requirement").


     A 4% non-deductible excise tax is imposed on a regulated investment company
that fails to distribute in each calendar year an amount at least equal to the
sum of 98% of ordinary taxable income for the calendar year and 98% of capital
gain net income for the one-year period ended on October 31 of such calendar
year (or, at the election of a regulated investment company having a taxable
year ending November 30 or December 31, for its taxable year), plus 100% of any
undistributed income from the preceding year. For the foregoing purposes, a
regulated investment company is treated as having distributed any amount on
which it is subject to income tax for any taxable year ending in such calendar
year.


     The Fund generally intends to make sufficient distributions (including by
way of deemed distributions) of its ordinary taxable income and capital gain net
income prior to the end of each calendar year to avoid liability for the excise
tax. However, investors should note that the Fund may in certain circumstances
be required to liquidate portfolio investments to make sufficient distributions
to avoid excise tax liability. In addition, the Fund may elect to pay the excise
tax liability if it determines that the costs of making an excise tax
distribution are greater than the excise tax liability that would be due upon
the failure to make such excise tax distribution.


     If the Fund does not qualify for taxation as a regulated investment company
for any taxable year, the Fund's income will be subject to corporate income
taxes imposed at the Fund level, and all distributions from earnings and
profits, including distributions of net exempt-interest income and net capital
gain (i.e., the excess, if any, of net long-term capital gain over net
short-term capital loss), will be taxable to shareholders as ordinary income. In
addition, in order to requalify for taxation as a regulated investment company,
the Fund may be required to recognize unrealized gains, pay substantial taxes
and interest, and make certain distributions.


     If at any time when shares of Municipal Preferred are outstanding the Fund
does not meet applicable asset coverage requirements, the Fund will be required
to suspend distributions to holders of Common Shares until the requisite asset
coverage is restored. Any such suspension may cause the Fund to pay the 4%
federal excise tax described above and may prevent the Fund from satisfying the
Distribution Requirement. The Fund


                                      B-26
<PAGE>   80

may redeem shares of Municipal Preferred in an effort to comply with the
Distribution Requirement and to avoid the excise tax. See "Description of
Municipal Preferred -- Dividends."

  Federal Taxation of Shareholders

     DIVIDENDS AND OTHER DISTRIBUTIONS.  Prior proposed legislation that was
ultimately not enacted would have reinstated a deductible tax (the
"Environmental Tax"), imposed through tax years beginning before January 1,
1996, at a rate of 0.12% on a corporation's alternative minimum taxable income
(computed without regard to the alternative minimum tax net operating loss
deduction) in excess of $2 million. If the Environmental Tax is reinstated,
exempt-interest dividends paid by the Fund that are included in a corporate
shareholder's alternative minimum taxable income may subject such shareholder to
the Environmental Tax. It is not possible for the Fund to predict whether
similar legislation might be proposed and enacted in the future. Corporate
shareholders should consult with their own tax advisors regarding the likelihood
of such legislation and its effect on them.

     As discussed in the Prospectus, exempt-interest dividends attributable to
interest received on certain private activity bonds and certain industrial
development bonds will not be tax-exempt to any shareholders who are, within the
meaning of Section 147(a) of the Code, "substantial users" of the facilities
financed by such obligations or bonds or who are "related persons" of such
substantial users. In general, a "substantial user" of a facility includes a
"non-exempt person who regularly uses a part of such facility in his trade or
business." "Related persons" are in general defined to include persons among
whom there exists a relationship, either by family or business, which would
result in a disallowance of losses in transactions among them under various
provisions of the Code (or if they are members of the same controlled group of
corporations under the Code), including a partnership and each of its partners
(and their spouses and minor children), an S corporation and each of its
shareholders (and their spouses and minor children) and various combinations of
these relationships. The foregoing is not a complete statement of all of the
provisions of the Code covering the definitions of "substantial user" and
"related person." For additional information, investors should consult their tax
advisors before investing in Common Shares.

     Any dividend paid by the Fund during January of a given year generally is
deemed to have been received by shareholders on December 31 of the preceding
year, provided that the dividend actually was declared by the Fund in October,
November or December of such preceding year and was payable to shareholders of
record on a date in such month.


     All or a portion of interest on indebtedness incurred or continued by a
shareholder to purchase or carry Fund shares may not be deductible by the
shareholder. The portion of interest that is not deductible is equal to the
total interest paid or accrued on the indebtedness multiplied by the percentage
of the Fund's total distributions (not including distributions of capital gain
net income) paid to the shareholder that are exempt-interest dividends. Under
rules used by the Internal Revenue Service for determining when borrowed funds
are considered to have been used for the purpose of purchasing or carrying
particular assets, the purchase of Common Shares may be considered to have been
made with borrowed funds even though such funds are not directly traceable to
the purchase of shares.



     Under federal tax law in effect at the date of this Prospectus, a
shareholder's interest deduction generally will not be disallowed if the average
adjusted basis of the shareholder's tax-exempt obligations (including Common
Shares) does not exceed two percent of the average adjusted basis of the
shareholder's trade or business assets (in the case of most corporations and
some individuals) and portfolio investments (in the case of individuals). Prior
proposed legislation that was ultimately not enacted would have further limited
or repealed this two-percent de minimis exception, which could reduce the total
after-tax yield of the Municipal Preferred to investors to whom the de minimis
exception would otherwise apply. It is not possible for the Fund to predict
whether similar legislation might be proposed and enacted in the future.
Shareholders should consult with their own tax advisors regarding the likelihood
of such legislation and its effect on them.


     If the Fund engages in hedging transactions, including hedging transactions
in options, futures contracts, and straddles, or other similar transactions, it
will be subject to special tax rules (including constructive sale,
mark-to-market, straddle, wash sale, and short sale rules), the effect of which
may be to accelerate income to
                                      B-27
<PAGE>   81

the Fund, defer losses to the Fund, cause adjustments in the holding periods of
the Fund's securities, or convert short-term capital losses into long-term
capital losses. These rules could therefore affect the amount, timing and
character of distributions to shareholders. The Fund will endeavor to make any
available elections pertaining to such transactions in a manner believed to be
in the best interests of the Fund.

     SALES OR REDEMPTIONS OF SHARES.  From time to time the Fund may make a
tender or repurchase offer for its Common Shares. It is expected that the terms
of any such offer will require a tendering shareholder to tender all Common
Shares, and dispose of all shares of Municipal Preferred, held or considered
under Code rules to be held by such shareholder. Shareholders who tender all
Common Shares and dispose of all shares of Municipal Preferred held, or
considered held, by them will be treated as having sold such shares and
generally will realize a capital gain or loss. If, however, a shareholder
tenders fewer than all of its Common Shares, or retains a substantial portion of
its Municipal Preferred, such shareholder may be treated as having received a
taxable dividend upon the tender of its Common Shares. In such a case, there is
a remote risk that non-tendering shareholders (including holders of Municipal
Preferred) will be treated as having received taxable distributions from the
Fund. Likewise, if the Fund redeems some but not all of the Municipal Preferred
held by a holder of Municipal Preferred and such holder of Municipal Preferred
is treated as having received a taxable dividend upon such redemption, there is
a remote risk that holders of Common Shares and non-redeeming holders of
Municipal Preferred will be treated as having received taxable distributions
from the Fund.


     FOREIGN INVESTORS.  Non-resident alien individuals, foreign corporations
and certain other foreign entities generally will be subject to a U.S.
withholding tax at a rate of 30% on the Fund's distributions from its ordinary
income and the excess of its net short-term capital gain over its net long-term
capital loss, unless the tax is reduced or eliminated by an applicable tax
treaty. Distributions of the Fund's net capital gain received by such
shareholders and any gain from the sale or other disposition of shares of the
Fund generally will not be subject to U.S. federal income taxation, provided
that non-resident alien status has been certified by the shareholder. Different
U.S. tax consequences may result if the shareholder is engaged in a trade or
business in the United States, is present in the United States for a sufficient
period of time during a taxable year to be treated as a U.S. resident, or fails
to provide any required certifications regarding status as a non-resident alien
investor. Foreign shareholders should consult their tax advisors regarding the
U.S. and foreign tax consequences of an investment in the Fund.



     The Internal Revenue Service revised its regulations affecting the
application to foreign investors of the back-up withholding and withholding tax
rules described above. The new regulations will generally be effective for
payments made after December 31, 2000. In some circumstances, the new rules will
increase the certification and filing requirements imposed on foreign investors
in order to qualify for exemption from the 31% back-up withholding tax and for
reduced withholding tax rates under income tax treaties. Foreign investors in
the Fund should consult their tax advisors with respect to the potential
application of these new regulations.



     The foregoing is a general, abbreviated summary of the provisions of the
Code and regulations thereunder presently in effect as they directly govern the
taxation of the Fund and owners of Common Shares. These provisions are subject
to change by legislative or administrative action, and any such change may be
retroactive with respect to Fund transactions. Owners of Common Shares are
advised to consult with their own tax advisors for more detailed information
concerning federal income tax matters.


FOREIGN, STATE AND LOCAL TAX MATTERS


     The exemption from federal income tax for exempt-interest dividends does
not necessarily result in exemption for such dividends under the income or other
tax laws of any foreign, state or local taxing authority. Some states exempt
from state income tax that portion of any exempt-interest dividend that is
derived from interest received by a regulated investment company on its holdings
of securities of that state and its political subdivisions and
instrumentalities. Therefore, the Fund will report annually to its shareholders
the percentage of interest income earned by the Fund during the preceding year
on tax-exempt obligations indicating, on a


                                      B-28
<PAGE>   82

state-by-state basis, the source of such income. Holders of shares of Municipal
Preferred are advised to consult with their own tax advisors about foreign,
state and local tax matters.

SPECIAL TAX CONSIDERATIONS RELATING TO CALIFORNIA MUNICIPAL OBLIGATIONS

     Information regarding the California tax consequences of investing in the
Fund are set forth in Appendix B -- "Special Considerations Relating to
California."

                             SHAREHOLDER LIABILITY

     Under Massachusetts law, shareholders could, under certain circumstances,
be held personally liable for the obligations of the Fund. However, the
Declaration disclaims shareholder liability for acts or obligations of the Fund
and requires that a notice of such disclaimer be given in each agreement,
obligation or instrument entered into or executed by the Fund or the Trustees.
The Declaration provides for indemnification out of Fund property for all loss
and expense of any shareholder held personally liable for the obligations of the
Fund. Thus, the risk of a shareholder's incurring financial loss on account of
shareholder liability is limited to circumstances (which are considered remote)
in which the Fund would be unable to meet its obligations and the disclaimer was
inoperative.

                                   CUSTODIAN


     The Chase Manhattan Bank, located at 270 Park Avenue, New York, New York
10017-2070, is the Fund's custodian. The custodian is responsible for
safeguarding the Fund's cash and securities, receiving and delivering securities
and collecting the Fund's interest and dividends.


                            INDEPENDENT ACCOUNTANTS


     PricewaterhouseCoopers LLP, independent accountants, have reviewed the
Statement of Assets and Liabilities of the Fund dated                , 1999 in
connection with the filing of such Statement with the Securities and Exchange
Commission. The address of PricewaterhouseCoopers LLP is 160 Federal Street,
Boston, Massachusetts 02110.



                             MISCELLANEOUS MATTERS



     From time to time, the Fund may discuss or quote its current portfolio
manager or managers as well as other investment personnel, including such
person's or persons' views on the following matters: the economy; securities
markets; portfolio securities and their issuers; investment philosophies,
strategies, techniques and criteria used in the selection of securities to be
purchased or sold for the Fund; the Fund's portfolio holdings; the investment
research and analysis process, including the use of investment teams; the
formulation and evaluation of investment recommendations; and the assessment and
evaluation of credit, interest rate, market and economic risks and similar or
related matters.



     The Fund may also quote evaluations mentioned in independent radio or
television broadcasts or print material, and use charts and graphs to illustrate
the effects of compounding and tax-deferral and to compare tax-exempt yields and
their taxable equivalent. The Fund may discuss current market conditions in
comparing the yields of municipal bonds and taxable bonds. The Fund may also
discuss the benefits of investing in insured bonds and the Fund's anticipated
initial portfolio composition, including using charts and graphs to illustrate
the percentages which the Fund expects to invest in bonds rates in certain
rating categories by one or more Rating Agencies.



     From time to time, the Fund may also discuss or quote the views of its
investment advisor and other financial planning, legal, tax, accounting,
insurance, estate planning and other professionals, or from surveys, regarding
individual and family financial planning. Such views may include information
regarding the following matters: retirement planning; general investment
techniques (e.g., asset allocation and disciplined saving and investing);
business succession; issues with respect to insurance (e.g., disability and life
insurance and Medicare supplemental insurance); issues regarding financial and
health care management for elderly family members; and similar or related
matters.

                                      B-29
<PAGE>   83

                                   APPENDIX A

                             RATINGS OF INVESTMENTS

STANDARD & POOR'S CORPORATION -- A brief description of the applicable Standard
& Poor's Corporation ("S&P") rating symbols and their meanings (as published by
S&P) follows:

LONG TERM DEBT

     An S&P corporate or municipal debt rating is a current assessment of the
creditworthiness of an obligor with respect to a specific obligation. This
assessment may take into consideration obligors such as guarantors, insurers, or
lessees.

     The debt rating is not a recommendation to purchase, sell, or hold a
security, 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 S&P from other sources it considers reliable. S&P 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:

          1. 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;

          2. Nature of and provisions of the obligation;

          3. Protection afforded by, 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.

INVESTMENT GRADE

<TABLE>
<S>   <C>
AAA   Debt rated "AAA" has the highest rating assigned by Standard
      & Poor's. Capacity to pay interest and repay principal is
      extremely strong.

AA    Debt rated "AA" has a very strong capacity to pay interest
      and repay principal and differs from the highest rated
      issues only in small degree.

A     Debt rated "A" has a strong capacity to pay interest and
      repay principal although it is somewhat more susceptible to
      the adverse effects of changes in circumstances and economic
      conditions than debt in higher rated categories.

BBB   Debt rated "BBB" is regarded as having an adequate capacity
      to pay interest and repay principal. Whereas it normally
      exhibits adequate protection parameters, adverse economic
      conditions or changing circumstances are more likely to lead
      to a weakened capacity to pay interest and repay principal
      for debt in this category than in higher rated categories.
</TABLE>

SPECULATIVE GRADE RATING

     Debt rated "BB", "B", "CCC", "CC" and "C" is regarded as having
predominantly speculative characteristics with respect to capacity to pay
interest and repay principal. "BB" indicates the least degree of

                                      B-30
<PAGE>   84

speculation and "C" the highest. While such debt will likely have some quality
and protective characteristics, these are outweighed by major uncertainties or
major exposures to adverse conditions.

<TABLE>
<S>   <C>
BB    Debt rated "BB" has less near-term vulnerability to default
      than other speculative issues. However, it faces major
      ongoing uncertainties or exposure to adverse business,
      financial, or economic conditions which could lead to
      inadequate capacity to meet timely interest and principal
      payments. The "BB" rating category is also used for debt
      subordinated to senior debt that is assigned an actual or
      implied "BBB-" rating.
B     Debt rated "B" has a greater vulnerability to default but
      currently has the capacity to meet interest payments and
      principal repayments. Adverse business, financial, or
      economic conditions will likely impair capacity or
      willingness to pay interest and repay principal.
      The "B" rating category is also used for debt subordinated
      to senior debt that is assigned an actual or implied "BB" or
      "BB -- " rating.
CCC   Debt rated "CCC" has a currently identifiable vulnerability
      to default, and is dependent upon favorable business,
      financial, and economic conditions to meet timely payment of
      interest and repayment of principal. In the event of adverse
      business, financial, or economic conditions, it is not
      likely to have the capacity to pay interest and repay
      principal.
      The "CCC" rating category is also used for debt subordinated
      to senior debt that is assigned an actual or implied "B" or
      "B-" rating.
CC    The rating "CC" typically is applied to debt subordinated to
      senior debt that is assigned an actual or implied "CCC" debt
      rating.
C     The rating "C" typically is applied to debt subordinated to
      senior debt which is assigned an actual or implied "CCC-"
      debt rating. The "C" rating may be used to cover a situation
      where a bankruptcy petition has been filed, but debt service
      payments are continued.
CI    The rating "CI" is reserved for income bonds on which no
      interest is being paid.
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 S&P 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 if debt service payments are jeopardized.
</TABLE>

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.

PROVISIONAL RATINGS:  The letter "p" indicates that the rating is provisional. A
provisional rating assumes the successful completion of the project financed by
the debt being rated and indicates that payment of debt service requirements is
largely or entirely dependent upon the successful and timely completion of the
project. This rating, however, while addressing credit quality subsequent to
completion of the project, makes no comment on the likelihood of, or the risk of
default upon failure of, such completion. The investor should exercise judgment
with respect to such likelihood and risk.

<TABLE>
<S>   <C>
L     The letter "L" indicates that the rating pertains to the
      principal amount of those bonds to the extent that the
      underlying deposit collateral is federally insured and
      interest is adequately collateralized.* In the case of
      certificates of deposit the letter "L" indicates that the
      deposit, combined with other deposits being held in the same
      right and capacity, will be honored for principal and
      accrued pre-default interest up to the federal insurance
      limits within 30 days after closing of the insured
      institution or, in the event that the deposit is assumed by
      a successor insured institution, upon maturity.
*     Continuance of the rating is contingent upon S&P's receipt
      of an executed copy of the escrow agreement or closing
      documentation confirming investments and cash flow.
NR    Indicates no rating has been requested, that there is
      insufficient information on which to base a rating, or that
      S&P does not rate a particular type of obligation as a
      matter of policy.
</TABLE>

                                      B-31
<PAGE>   85

MUNICIPAL NOTES

     An S&P note rating reflects the liquidity concerns and market access risks
unique to notes. Notes due in 3 years or less will likely receive a note rating.
Notes maturing beyond 3 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).

     -- 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:

<TABLE>
<S>   <C>
SP-1  Very strong or strong capacity to pay principal and
      interest. Those issues determined to possess overwhelming
      safety characteristics will be given a plus (+) designation.

SP-2  Satisfactory capacity to pay principal and interest.

SP-3  Speculative capacity to pay principal and interest.
</TABLE>

     A note rating is not a recommendation to purchase, sell, or hold a security
inasmuch as it does not comment as to market price or suitability for a
particular investor. The ratings are based on current information furnished to
S&P by the issuer or obtained by S&P from other sources it considers reliable.
S&P 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.

COMMERCIAL PAPER

     An S&P 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-1" for the
highest quality obligations to "D" for the lowest. These categories are as
follows:

<TABLE>
<S>   <C>
A-1   This highest category 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-l."

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 S&P believes
      that such payments will be made during such grace period.
</TABLE>

     A commercial paper rating is not a recommendation to purchase, sell, or
hold a security inasmuch as it does not comment as to market price or
suitability for a particular investor. The ratings are based on current
information furnished to S&P by the issuer or obtained by S&P from other sources
it considers reliable. S&P 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.

                                      B-32
<PAGE>   86

MOODY'S INVESTORS SERVICE, INC. -- A brief description of the applicable Moody's
Investors Service, Inc. ("Moody's") rating symbols and their meanings (as
published by Moody's) follows:

MUNICIPAL BONDS

<TABLE>
<S>   <C>
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.
</TABLE>

     Bonds for which the security depends upon the completion of some act or the
fulfillment of some condition are rated conditionally. These are bonds secured
by (a) earnings of projects under construction, (b) earnings of projects
unseasoned in operation experience, (c) rentals which begin when facilities are
completed, or (d) payments to which some other limiting condition attaches.
Parenthetical rating denotes probable credit stature upon completion of
construction or elimination of basis of condition.

Note:  Those bonds in the Aa, A, Baa, Ba and B groups which Moody's believes
       possess the strongest investment attributes are designated by the symbols
       Aal, Al, Baal, Bal and Bl.

                                      B-33
<PAGE>   87

SHORT-TERM LOANS

<TABLE>
<S>            <C>
MIG 1/VMIG 1   This designation denotes best quality. There is present
               strong protection by established cash flows, superior
               liquidity support or demonstrated broadbased access to the
               market for refinancing.

MIG 2/VMIG 2   This designation denotes high quality. Margins of protection
               are ample although not so large as in the preceding group.

MIG 3/VMIG 3   This designation denotes favorable quality. All security
               elements are accounted for but there is lacking the
               undeniable strength of the preceding grades. Liquidity and
               cash flow protection may be narrow and market access for
               refinancing is likely to be less well established.

MIG 4/VMIG 4   This designation denotes adequate quality. Protection
               commonly regarded as required of an investment security is
               present and although not distinctly or predominantly
               speculative, there is specific risk.

S.G.           This designation denotes speculative quality. Debt
               instruments in this category lack margins of protection.
</TABLE>

COMMERCIAL PAPER

Issuers rated PRIME-1 (or related supporting institutions) have a superior
capacity for repayment of short-term promissory obligations. Prime-1 repayment
capacity will normally 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 earnings coverage of fixed financial charges and high
        internal cash generation.

     -- Well established access to a range of financial markets and assured
        sources of alternate liquidity.

     Issuers rated PRIME-2 (or related supporting institutions) have a strong
capacity 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 related supporting institutions) have an
acceptable capacity for repayment of short-term promissory obligations. The
effect of industry characteristics and market composition may be more
pronounced. Variability in earnings and profitability may result in changes in
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.

                                      B-34
<PAGE>   88

                                   APPENDIX B

                 SPECIAL CONSIDERATIONS RELATING TO CALIFORNIA


     The Fund's concentration on municipal bonds issued by the State of
California (the "State"), its agencies, or its political subdivisions means that
investors are subject to risks of default or change in value of the securities
owned by the Fund deriving from certain unique factors affecting California
issuers. The information presented below has been derived from official
statements and other public reports of the State, but does not purport to be
comprehensive. In addition, the financial strength of local governments in
California is not directly related to the State's financial strength, and
factors not listed below may affect an individual local government.


     During the early 1990's, the State experienced significant financial
difficulties, which reduced its credit standing. The State's finances have
improved significantly since 1994, with credit ratings increases since 1996. The
ratings of certain related debt of other issuers for which the State has an
outstanding lease purchase, guarantee or other contractual obligation (such as
for state-insured hospital bonds) are generally linked directly to the State's
credit rating. Should the State's financial condition deteriorate again, its
credit ratings could be reduced, and the market value and marketability of all
outstanding notes and bonds issued by the State, its agencies or its local
governments could be adversely affected.

ECONOMIC FACTORS


     California's economy is the largest in the nation and one of the largest in
the world. The State's July 1, 1998, population of over 33.4 million represented
over 12% of the total United States population. Total personal income in
California, at an estimated $902 billion in 1998, accounts for almost 13% of all
personal income in the nation. Total employment is over 15 million, the majority
of which is in the service, trade and manufacturing sectors.


     From mid-1990 to late 1993, the State suffered a recession with the worst
economic, fiscal and budget conditions since the 1930s. Construction,
manufacturing (especially aerospace), and financial services, among others, were
all severely affected, particularly in Southern California. Employment levels
stabilized by late 1993 and pre-recession job levels were reached in 1996.
Unemployment has come down to under six percent in June 1999. Economic
indicators show a steady and strong recovery underway in California since the
start of 1994. The Asian economic crisis starting in 1997 has dampened the
State's economic growth, particularly in high technology manufacturing. Several
key export industries, such as electronics and aerospace manufacturing,
agriculture, and motion picture production, are struggling, due in part to
weakness in foreign demand. Conversely, the demand for high technology services,
including software, internet applications, and biotechnology, is strong and
construction activity continues to surge. Current forecasts predict continued
strong growth of the State's economy in 1999, with a slowdown predicted in 2000
and beyond. Any delay or reversal of the recovery may create new shortfalls in
State revenues.

CONSTITUTIONAL LIMITATIONS ON TAXES, OTHER CHARGES AND APPROPRIATIONS

     LIMITATION ON PROPERTY TAXES.  Certain California municipal bonds may be
obligations of issuers which rely in whole or in part, directly or indirectly,
on ad valorem property taxes as a source of revenue. The taxing powers of
California local governments and districts are limited by Article XIII A of the
California Constitution, enacted by the voters in 1978 and commonly known as
"Proposition 13." Briefly, Article XIII A limits to one percent of "full cash
value" the rate of ad valorem property taxes on real property and generally
restricts the increase in the assessed value of real property to two percent per
year, except when new construction or a change in ownership occurs (subject to a
number of exemptions). Taxing entities may, however, increase the permissible ad
valorem tax rate above one percent to pay debt service on voter-approved bonded
indebtedness.


     Under Article XIII A, the basic one percent tax rate applies to the
assessed value of property, determined as of the owner's date of acquisition (or
as of March 1, 1975, if acquired before that date), subject to certain
adjustments. This system has resulted in widely varying amounts of tax on
similarly situated properties.


                                      B-35
<PAGE>   89

Although several lawsuits have been filed challenging Proposition 13's
acquisition value-based system, it was upheld by the U.S. Supreme Court in 1992.

     Article XIII A also requires the voters of any city, county or special
district to approve any "special tax" by a two-thirds vote. Court decisions,
however, allowed a non-voter approved levy of "general taxes" which were not
dedicated to a specific use.

     LIMITATIONS ON OTHER TAXES, FEES AND CHARGES.  In November 1996, California
voters approved Proposition 218, which added Articles XIII C and XIII D to the
State Constitution. These provisions affect significantly the ability of local
governments (including special districts) to levy and collect existing and
future taxes, assessments, fees and charges.

     Article XIII C requires that all new, extended or increased local taxes be
submitted to the electorate before they become effective; taxes for general
governmental purposes require a majority vote and taxes for specific purposes
require a two-thirds vote. Further, any general purpose tax which was imposed,
extended or increased, without voter approval, after 1994 and before Proposition
218's approval, must be approved by a majority vote within two years of the date
Proposition 218 was approved.

     Article XIII D contains several provisions making it generally more
difficult for local governments (including special districts) to levy and
maintain "assessments" for municipal services and programs. Article XIII D also
contains several provisions affecting "fees" and "charges," defined to mean "any
levy other than an ad valorem tax, a special tax, or an assessment, imposed by a
[local government] upon a parcel or upon a person as an incident of property
ownership, including user fees or charges for a property related service." All
new, extended or increased property-related fees and charges must conform to
requirements prohibiting, among other things, the generation of revenues
exceeding the funds required to provide the property-related service, and the
use of the revenues for unrelated purposes. Notice, hearing and protest
procedures are provided for levying or increasing fees and charges and, except
for fees or charges for sewer, water and refuse collection services (or fees for
electrical and gas service, which are not treated as "property related" for
purposes of Article XIII D), no property related fee or charge may be imposed or
increased without majority approval by the property owners subject to the fee or
charge or, at the option of the local agency, two-thirds voter approval by the
electorate residing in the affected area.

     In addition to the provisions described above, Article XIII C removes
limitations on the initiative power in matters of reducing or repealing local
taxes, assessments, fees and charges. Consequently, local voters could, by
future initiative, repeal, reduce or prohibit the future imposition or increase
of any local tax, assessment, fee or charge. It is unclear how this right of
local initiative may be used in cases where taxes or charges have been or will
be specifically pledged to secure debt issues.

     The interpretation and application of Proposition 218 will ultimately be
determined by the courts with respect to a number of matters, and it is not
possible at this time to predict with certainty the outcome of such
determinations. Proposition 218 is generally viewed as restricting the fiscal
flexibility of local governments, and for this reason, some credit ratings of
California cities and counties have been, and others may be, reduced.

     APPROPRIATIONS LIMITS.  The State and its local governments are also
subject to an annual "appropriations limit" imposed by Article XIII B of the
California Constitution, enacted by the voters in 1979 and significantly amended
by Propositions 98 and 111 in 1988 and 1990, respectively. Article XIII B
prohibits the State or any covered local government from spending
"appropriations subject to limitation" in excess of the appropriations limit
imposed on that entity. "Appropriations subject to limitation" are
authorizations to spend "proceeds of taxes," which consist of tax revenues and
certain other funds (including proceeds from regulatory licenses, user charges
or other fees, to the extent that such proceeds exceed the cost of providing the
product or service), but "proceeds of taxes" exclude many State subventions to
local governments. Each entity's appropriations limit is adjusted annually to
reflect changes in cost of living and population, and transfers of service
responsibilities between governmental units.

     Article XIII B does not limit appropriations of funds which are not
"proceeds of taxes," such as reasonable user charges or fees, and certain other
non-tax funds, including bond proceeds. Among the expenditures not included in
the Article XIII B appropriations limit are (1) the debt service cost of bonds

                                      B-36
<PAGE>   90

issued or authorized prior to January 1, 1979, or subsequently authorized by the
voters, (2) appropriations arising from certain emergencies declared by the
Governor, and (3) appropriations for certain capital outlay projects.

     A governmental entity that receives "excess" revenues, measured over a
two-year cycle, must dispose of the excess amount. Local governments must return
any excess to taxpayers by rate reductions. The State must refund to taxpayers
half of any excess, with the other half paid to schools and community colleges.
With more liberal annual adjustment factors since 1988, and depressed revenues
since 1990 because of the recession, few governments are currently operating
near their spending limits, but this condition may change over time. State
appropriations were $5 billion under the limit for fiscal year 1998-99. Local
governments may, by voter approval, exceed their spending limits for up to four
years.

     Because of the complex nature of Articles XIII A through XIII D of the
California Constitution, the ambiguities and possible inconsistencies in their
terms, the impossibility of predicting future appropriations or changes in
population and cost of living, and the probability of continuing legal
challenges, it is not currently possible to determine fully the impact of these
Articles on California municipal bonds or on the ability of the State or local
governments to pay debt service on such California municipal bonds. It is not
possible, at the present time, to predict the outcome of any pending litigation
with respect to the ultimate scope, impact or constitutionality of these
Articles upon the State's or any local government's ability to pay debt service
on, or repay, their obligations. Future voter action may also affect the ability
of the State or local governments to repay their obligations.

OBLIGATIONS OF THE STATE OF CALIFORNIA


     Under the California Constitution, debt service on outstanding general
obligation bonds is the second charge to the General Fund (the State's principal
operating fund) after support of the public school system and public
institutions of higher education. As of August 1, 1999, the State had
outstanding approximately $19.8 billion of long-term general obligation bonds,
$687 million of general obligation commercial paper, and $6.7 billion of
lease-purchase debt supported by the General Fund. The State also had about
$14.8 billion of authorized and unissued long-term general obligation bonds and
lease-purchase debt. In the 1998-99 fiscal year, debt service on general
obligation bonds and lease purchase debt was approximately 4.4% of General Fund
revenues.


RECENT FINANCIAL RESULTS


     The principal sources of General Fund revenues are the California personal
income tax, the sales and use tax, bank and corporation taxes, and the gross
premium tax on insurance. The State also maintains a Special Fund for Economic
Uncertainties (the "SFEU"), derived from General Fund revenues, as a reserve to
meet cash needs of the General Fund, and which is required to be replenished as
soon as sufficient revenues are available. Year-end balances in the SFEU are
included for financial reporting purposes in the General Fund balance. Because
of the recession and an accumulated budget deficit, no reserve was budgeted in
the SFEU from 1992-93 to 1995-96. The California Department of Finance estimates
year-end balances in the SFEU of about $1.932 billion for 1998-99 and $880
million for 1999-00.


     GENERAL.  Throughout the 1980's, State spending increased rapidly as the
State's population and economy also grew rapidly, including increased spending
for many assistance programs to local governments, which were constrained by
Proposition 13 and other laws. The largest State program is assistance to local
public and community college school districts. In 1988, Proposition 98 was
enacted, which generally guarantees local school districts and community college
districts a minimum share of State General Fund revenues (currently about 35%).

     RECENT BUDGETS.  As a result of the severe economic recession from 1990-94
and other factors, the State experienced substantial revenue shortfalls and
greater than anticipated social service costs in the early and mid-1990's. The
State accumulated and sustained a budget deficit in the budget reserve, the
SFEU, approaching $2.8 billion at its peak on June 30, 1993. The Legislature and
Governor agreed on a number of

                                      B-37
<PAGE>   91


different steps to respond to the adverse financial conditions and produce
Budget Acts in the fiscal years 1991-92 to 1994-95 (although not all of these
actions were taken in each year).



     A consequence of the accumulated budget deficits in the early 1990's,
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. The State's cash condition became so serious that from
late spring 1992 until 1994, the State had to rely on issuance of short-term
notes which matured in a subsequent fiscal year to finance its ongoing deficit
and pay current obligations. For a two-month period beginning in the Summer of
1992, pending adoption of the annual Budget Act, the State was forced to issue
registered warrants (IOUs) to some of its suppliers, employees and other
creditors. The last of these deficit notes was repaid in April 1996.


     The State's financial condition improved markedly during the 1995-96,
1996-97 and 1997-98 fiscal years, with a combination of better than expected
revenues, slowdown in growth of social welfare programs, and continued spending
restraint based on the actions taken in earlier years. The State's cash position
also improved, and no external deficit borrowing has occurred over the end of
these three fiscal years.


     The State economy grew strongly during the fiscal years starting in
1995-96, and the General Fund took in substantially greater tax revenues (around
$2.2 billion in 1995-96, $1.6 billion in 1996-97, $2.4 billion in 1997-98 and $1
billion in 1998-99) than were initially planned when the budgets were enacted.
These additional funds were largely directed to school spending as mandated by
Proposition 98, to make up shortfalls from reduced federal health and welfare
aid in 1995-96 and 1996-97 and, particularly in 1998-99, to fund new program
incentives. The accumulated budget deficit from the recession years was finally
eliminated.


     FY 1997-98 BUDGET.  In May 1997, the California Supreme Court ruled that
the State acted illegally in 1993 and 1994 by using a deferral of payments to
the Public Employees Retirement Fund to help balance earlier budgets. In
response to this court decision, the Governor ordered an immediate repayment to
the Retirement Fund of about $1.228 billion, which substantially "used up" the
then-expected additional General Fund revenues for the fiscal year. The 1997-98
Budget Act provided another year of rapidly increasing funding for K-14 public
education. Support for higher education units in the State also increased by
about six percent. Because of the pension repayment, most other State programs
were funded at levels consistent with prior years, and several initiatives had
to be dropped. The final results for 1997-98 showed General Fund revenues and
transfers of $54.9 billion and expenditures of $52.9 billion.

     Part of the 1997-98 Budget Act was completion of State welfare reform
legislation to implement the federal welfare reform law passed in 1996. The new
State program became effective January 1, 1998, and emphasizes programs to bring
aid recipients into the workforce. As required by federal law, new time limits
are placed on receipt of welfare aid.

     FY 1998-99 BUDGET.  The 1998-99 Budget Act was signed on August 21, 1998.
The Budget Act assumed General Fund revenues and transfers in 1998-99 of $57.0
billion. After giving effect to line-item vetoes made by the Governor, the
Budget Act authorized spending of about $57.3 billion from the General Fund and
$14.7 billion from Special Funds. After enactment of the Budget Act, a number of
additional fiscal bills were enacted, but the Administration also raised its
estimate of revenues from the 1997-98 fiscal year.


     As has been the case in the last several years, spending on K-14 education
increased significantly, by a total of $1.7 billion over revised 1997-98 levels.
Funding to support higher education was also increased significantly (more than
15% for the University of California and more than 14% for the California State
University system). The Budget included some increases in health and welfare
programs, including the first increase in the monthly welfare grant in nine
years.


     One of the most important elements of the 1998-99 Budget Act was agreement
on $1.4 billion of tax cuts. The largest of these is a cut in the Vehicle
License Fee (an annual tax on the value of cars registered in the State, the
"VLF"). Starting in 1999, the VLF is reduced by 25%, and then increasing to
67.5%. Because VLF funds are automatically transferred to cities and counties,
the new legislation provides for the General Fund to make up the reductions in
VLF funds. If State General Fund revenues continue to grow above certain
targeted levels in future years, the cut could reach as much as 67.5% by the
year 2003. The initial 25% VLF cut will be

                                      B-38
<PAGE>   92


offset by about $500 million in General Fund money in 1998-99, and $1 billion
annually for future years. Other tax cuts in 1998-99 include an increase in the
dependent exemption credit for personal income tax filers, restoration of a
renter's tax credit for individual taxpayers, and a variety of business tax
relief measures.



     New projections for the balance of 1998-99 were released on May 14, 1999 as
part of the May Revision to the Governor's Proposed Budget for 1999-00 (the "May
Revision"). The May Revision revealed that the State's economy was much stronger
in late 1998 and into 1999 than the Administration had thought when it made its
first 1999-00 Budget Proposal in January 1999. As a result, the May Revision
updates 1998-99 General Fund revenues to be about $57.9 billion, almost $1
billion above the 1998-99 Budget Act, and over $1.6 billion above the
Administration's January 1999 estimate. This increase is from personal income
taxes, reflecting stronger wage employment than previously estimated, and
extraordinary growth in capital gain realizations resulting from the stock
market's rise. The May Revision projects the SFEU will have a balance of almost
$1.9 billion at June 30, 1999.


     Although the Administration projects a budget reserve in the SFEU of about
$1.9 billion on June 30, 1999, the General Fund balance on that date also
reflects $1.76 billion of "loans" which the General Fund made to local schools
in the recession years, representing cash outlays above the mandatory minimum
funding level. A July 1996 settlement of litigation over these transactions
calls for repayment of these loans over a period ending in 2001-02, about
equally split between outlays from the General Fund and from schools'
entitlements. The 1998-99 Budget Act contained a $250 million appropriation from
the General Fund toward this settlement.


     FY 1999-00 BUDGET.  The Governor's proposed 1999-00 Budget was released in
January 1999. The proposed budget projected somewhat lower General Fund revenues
for 1999-00 than earlier projections. The May Revision sharply increased the
revenue estimates, by over $2.7 billion, to a total of almost $63.0 billion,
which would represent a nine percent increase above 1998-99. The January
Governor's Budget proposed $60.5 billion of expenditures in 1999-00, with a $415
million SFEU reserve at June 30, 2000.


     The 1999-00 Budget Act was the first State budget since 1993 to be signed
into law by the June 30 deadline. The 1999-00 budget projects General Fund
reserves and transfers of almost $63 billion and General Fund expenditures of
$63.7 billion. The 1999-00 budget projects a June 30, 2000 balance in the SFEU
of $881 million.


     The principal features of the 1999-00 Budget Act include:



     - A $1.6 billion increase over revised 1998-99 levels in Proposition 98
       funding for K-12 schools, which is $108.6 million higher than the minimum
       Proposition 98 guarantee;



     - A substantial increase above the actual 1998-99 level in funding for
       higher education;



     - Increased funding of almost $600 million for health and human services;



     - $800 million in expenditures for infrastructure costs;



     - An additional one-year reduction in the VLF, at a cost of about $500
       million; and



     - More than $200 million in appropriations to cities and counties.


     Although the State's strong economy is producing record revenues to the
State government, the State's budget continues to be under stress from mandated
spending on education, a rising prison population, and social needs of a growing
population with many immigrants. These factors which limit State spending growth
also put pressure on local governments. There can be no assurances that, if
economic conditions weaken, or other factors intercede, the State will not
experience budget gaps in the future.

BOND RATINGS

     The ratings on the State's long-term general obligation bonds were reduced
in the early 1990's from the "AAA" levels which existed prior to the recession.
Beginning in 1996, the three major rating agencies raised

                                      B-39
<PAGE>   93


their ratings of the State's general obligation bonds, which as of August 1999
were assigned ratings of "AA-" from Standard & Poor's, "Aa3" from Moody's and
"AA-" from Fitch.


     There can be no assurance that such ratings will be maintained in the
future. It should be noted that the creditworthiness of obligations issued by
local California issuers may be unrelated to the creditworthiness of obligations
issued by the State, and that there is no obligation on the part of the State to
make payment on such local obligations in the event of default.

LEGAL PROCEEDINGS

     The State is involved in certain legal proceedings (described in the
State's recent financial statements) that, if decided against the State, may
require the State to make significant future expenditures or may substantially
impair revenues. Trial courts have recently entered tentative decisions or
injunctions which would overturn several parts of the State's recent budget
compromises. The matters covered by these lawsuits also include reductions in
welfare payments, the use of certain cigarette tax funds for health costs, and
the State's liability for property damage incurred in 1997 floods in Northern
California. All of these cases are subject to further proceedings and appeals,
and if the State eventually loses, the final remedies may not have to be
implemented in one year.

YEAR 2000 PREPARATIONS

     The State and California local governments, along with all other public and
private institutions in the nation, face a major challenge to ensure that their
computer systems, including microchips embedded into existing machinery, will
not fail prior to or at January 1, 2000, which date may not be recognized
properly by software utilizing only two digits to identify a year. The State
Department of Information Technology ("DOIT"), created in 1995, coordinates
activities, provides technical assistance to State agencies and local
governments, and reports on the status of remediation efforts by over 100 State
departments and agencies.


     In July 1999 DOIT reported that 97% of about 556 "mission critical"
information technology systems in State government had been remediated. The DOIT
estimates total Y2K costs identified by those departments under the DOIT's
supervision at about $357 million. This amount is part of much larger overall
information technology costs incurred annually by the State, including costs
incurred by certain independent State entities, such as the judiciary, the
Legislature, the University of California and the California State University
System. Moreover, the DOIT's cost estimates for "embedded systems" apply only to
the embedded systems posing the highest risk to essential programs. For fiscal
year 1999-00, the Legislature created a fund of $33.5 million ($13.5 million
from the General Fund) for unanticipated Y2K costs, which fund can be increased
if necessary.



     In addition to hardware and software changes, State agencies are preparing
business contingency plans in case of computer problems at January 1, 2000, and
are actively coordinated with outside agencies, vendors, contractors and others
with whom computer data is shared. The State Treasurer (responsible for bond
payments) and State Controller (responsible for State fiscal controls) have
reported that the systems for bond payments and the State fiscal and accounting
system, respectively, were fully remediated by December 31, 1998, and that they
will complete the final steps of testing during 1999.



     The State has expended, and plans to spend, many hundreds of millions of
dollars on year 2000 projects. There is no survey of local government costs or
the overall status of their activities, however. It is likely that larger
government agencies are better prepared at this time than smaller ones. Both the
State and local governments are preparing emergency plans for year 2000 computer
difficulties similar to their normal planning for nature emergencies, such as
floods or earthquakes.



     While substantial progress has been made by the State toward Y2K
compliance, the task is quite large and will likely encounter some unexpected
difficulties. The State cannot guarantee that all "mission critical" systems
will be ready and tested by late 1999, or what the impact failure of any
particular information technology system(s) or of outside interfaces with
information technology systems might have.


                                      B-40
<PAGE>   94

OBLIGATIONS OF OTHER ISSUERS

     OTHER ISSUERS OF CALIFORNIA MUNICIPAL OBLIGATIONS.  There are a number of
State agencies, instrumentalities and political subdivisions that issue
municipal obligations, some of which may be conduit revenue obligations that
derive payments from private borrowers. These entities are subject to various
economic risks and uncertainties, and the credit quality of the securities
issued by them may vary considerable from the credit quality of obligations
backed by the full faith and credit of the State.


     STATE ASSISTANCE.  Property tax revenues received by local governments
declined substantially following passage of Proposition 13. Subsequently, to
assist municipal issuers the California Legislature enacted measures to provide
for the redistribution of the State's General Fund surplus to local agencies,
the reallocation of certain State revenues to local agencies, and the assumption
of certain governmental functions by the State, including the principal
responsibility for funding K-12 schools and community colleges. During the
recession, the State caused local governments to transfer some of their property
tax revenues to school districts, representing the loss of the post-Proposition
13 "bailout" aid. (Litigation has been brought against the State challenging the
legality of these property tax revenues shifts.) Local governments have in
return received greater revenues and greater flexibility to operate health and
welfare programs. However, except for agreement in 1997 on a new program for the
State to substantially take over funding for local trial courts (saving cities
and counties some $400 million annually), there has been no large-scale reversal
of the property tax shift to help local governments.



     The 1999-00 Budget Act includes a $150 million one-time subvention to local
agencies for relief from 1992 and 1993 property tax shifts. Legislation has been
passed, subject to voter approval in November 2000, to provide a more permanent
payment to local governments to offset the property tax shift. In addition, the
Governor has proposed a review and "accounting" of State-local fiscal
relationships, with the goal of ultimately restoring local government finances
to a fiscal condition equivalent to the period prior to the recession-induced
tax shifts.



     To the extent the State is constrained by its Article XIII B appropriations
limit (described above), or its obligation to conform to Proposition 98, or
other fiscal considerations, the absolute level, or the rate of growth, of State
assistance to local governments may continue to be reduced. Any such reductions
in State aid could compound the serious fiscal constraints already experienced
by many local governments, particularly counties. Orange County, which emerged
from Federal Bankruptcy Court protection in June 1996, has significantly reduced
county services and personnel, and faces strict financial conditions following
large investment fund losses in 1994 which resulted in bankruptcy. As described
above, Article XIII B and Proposition 218 affect significantly the ability of
local governments to raise revenue.



     Counties and cities may face further budgetary pressures as a result of
changes in welfare and public assistance programs, which were enacted in August
1997 in order to comply with the federal welfare reform law. Generally, counties
play a large role in the new system, and are given substantial flexibility to
develop and administer programs to bring aid recipients into the workforce.
Counties are also given financial incentives if either at the county or
statewide level, the "Welfare-to-Work" programs exceed minimum targets; counties
are also subject to financial penalties for failure to meet such targets.
Counties remain responsible to provide "general assistance" to certain persons
who cannot obtain welfare from other programs. The long-term financial impact of
the new welfare system on local governments is still unknown.


     ASSESSMENT BONDS.  California municipal obligations which are assessment
bonds may be adversely affected by a general decline in real estate values or a
slowdown in real estate sales activity. In many cases, such bonds are secured by
land which is undeveloped at the time of issuance but which is anticipated to be
developed within a few years after issuance. In the event of such reduction or
slowdown, such development may not occur or may be delayed, thereby increasing
the risk of a default on the bonds. Because the special assessments or taxes
securing these bonds are not the personal liability of the owners of the
property assessed, the lien on the property is the only security for the bonds.
Moreover, in most cases the issuer of these bonds is not required to make
payments on the bonds in the event of delinquency in the payment of assessments
or taxes, except from amounts, if any, in a reserve fund established for the
bonds.

                                      B-41
<PAGE>   95

     CALIFORNIA LONG-TERM LEASE OBLIGATIONS.  Based on a series of court
decisions, certain long-term lease obligations, though typically payable from
the general fund of the State or a municipality, are not considered
"indebtedness" requiring voter approval. Such leases, however, are subject to
"abatement" in the event the facility being leased is unavailable for beneficial
use and occupancy by the municipality during the term of the lease. Abatement is
not a default, and there may be no remedies available to the holders of the
certificates evidencing the lease obligation in the event abatement occurs. The
most common cases of abatement are failure to complete construction of the
facility before the end of the period during which lease payments have been
capitalized and uninsured casualty losses to the facility (e.g., due to
earthquake). If abatement occurs with respect to a lease obligation, lease
payments may be interrupted (if all available insurance proceeds and reserves
are exhausted) and the certificates may not be paid when due. Although
litigation is brought from time to time challenging the constitutionality of
such lease arrangements, the California Supreme Court issued a ruling in August
1998 which reconfirmed the legality of these financing methods.

OTHER CONSIDERATIONS

     The repayment of industrial development bonds and other securities secured
by real property may be affected by California laws limiting foreclosure rights
of creditors. Securities backed by health care and hospital revenues may be
affected by changes in State regulations governing cost reimbursements to health
care providers under Medi-Cal (the State's Medicaid program), including the
risks related to the policy of awarding exclusive contracts to certain
hospitals.

     Limitations on ad valorem property taxes may particularly affect "tax
allocation" bonds issued by California redevelopment agencies. Such bonds are
secured solely by the increase in assessed valuation of a redevelopment project
area after the start of redevelopment activity. In the event that assessed
values in the redevelopment project decline (e.g., because of a major
earthquake), the tax increment revenue may be insufficient to make principal and
interest payments on these bonds. Both Moody's and S&P suspended ratings on
California tax allocation bonds after the enactment of Articles XIII A and XIII
B, and only resumed such ratings on a selective basis.

     The effect of these various constitutional and statutory changes upon the
ability of California municipal securities issuers to pay interest and principal
on their obligations remains unclear. Furthermore, other measures affecting the
taxing or spending authority of California or its political subdivisions may be
approved or enacted in the future. Legislation has been or may be introduced
which would modify existing taxes or other revenue-raising measures or which
either would further limit or, alternatively, would increase the abilities of
the state and local governments to impose new taxes or increase existing taxes.
It is not possible, at present, to predict the extent to which any such
legislation will be enacted. Nor is it possible, at present, to determine the
impact of any such legislation on California municipal obligations in which the
Fund may invest, future allocations of state revenues to local governments or
the abilities of the State or local governments to pay the interest on, or repay
the principal of, such California municipal obligations.

     Most of California is within an active geologic region subject to major
seismic activity. Northern California in 1989 and Southern California in 1994
experienced major earthquakes causing billions of dollars in damages. The
federal government provided more than $13 million in aid after these
earthquakes, and neither earthquake is expected to have any long-term negative
economic impact. The value of any California municipal obligation held by the
Fund could be affected by an interruption of revenues because of damaged
facilities, or, consequently, income tax deductions for casualty losses or
property tax assessment reductions. Compensatory financial assistance could be
constrained by the inability of (i) an issuer to have obtained earthquake
insurance coverage rates; (ii) an insurer to perform on its contracts of
insurance in the event of widespread losses; or (iii) the federal or State
government to appropriate sufficient funds within their respective budget
limitations.

CALIFORNIA TAX MATTERS

     The following is based upon the advice of Heller Ehrman White & McAuliffe,
special California counsel to the Fund.

                                      B-42
<PAGE>   96

     The following is a general, abbreviated summary of certain provisions of
the applicable California State tax law as presently in effect as it directly
governs the taxation of Common Shareholders of the Fund who are either
California resident individuals or corporations subject to the California
franchise tax. This summary does not address the taxation of other shareholders
nor does it discuss any local taxes that may be applicable. These provisions are
subject to change by legislative or administrative action, and any such change
may be retroactive with respect to transactions of the Fund.

     The following is based on the assumptions that the Fund will qualify under
Subchapter M of the Code as a regulated investment company, that it will satisfy
the conditions which will cause distributions of the Fund (to the extent derived
by the Fund from interest on California municipal obligations) to qualify as
exempt-interest dividends to shareholders for federal and California purposes,
and that it will distribute all interest and dividends it receives to the
shareholders.

     The Fund will be subject to the California corporate franchise and
corporation income tax only if it has a sufficient nexus with California. If it
is subject to the California franchise or corporation income tax, the Fund does
not expect to pay a material amount of such tax.

     If at the close of each quarter of the Fund's taxable year at least 50% of
the value of its total assets consists of obligations that, when held by an
individual, pay interest that is exempt from tax by California under California
or federal law, then distributions by the Fund that are attributable to interest
on any such obligation will not be subject to the California personal income
tax. All other distributions, including distributions attributable to dividends
and capital gains, will be includable in gross income for purposes of the
California personal income tax.

     Interest on "private activity bonds" is not included in an individual's
income for purposes of the California alternative minimum tax. In addition,
California does not impose personal income tax on Social Security benefits.

     Interest on indebtedness incurred or continued for the purpose of acquiring
or maintaining an investment in the Common Shares will not be deductible for
purposes of the California personal income tax.

     All distributions of the Fund, regardless of source, to corporate Common
Shareholders that are subject to the California corporate franchise tax will be
included in gross income for purposes of such tax.

     Gain on the sale, exchange, or other disposition of Common Shares will be
subject to the California personal income and corporate franchise tax. Any loss
realized by a holder of Common Shares upon the sale of shares held for six
months or less may be disallowed to the extent of any exempt interest dividends
received with respect to such shares. Moreover, any loss realized upon the sale
of Common Shares within 30 days before or after the acquisition of other Common
Shares (including through a distribution from the Fund) may be disallowed under
the "wash sale" rules.

     Common Shareholders are advised to consult with their own tax advisers for
more detailed information concerning California tax matters.

                                      B-43
<PAGE>   97

TAX RATE COMPARISONS

     The table below gives the approximate yield a taxable security must earn at
various income brackets to produce after-tax yields equivalent to those of
tax-exempt bonds yielding from 4.75% to 5.50% under the Code and the California
state personal income tax law, applying tax rates applicable to individuals for
1998.

<TABLE>
<CAPTION>
                                                                           TAX EXEMPT
                                             COMBINED     ---------------------------------------------
            (TAXABLE INCOME*)               FEDERAL AND     4.75%       5.00%       5.25%       5.50%
- -----------------------------------------    CA STATE     ---------   ---------   ---------   ---------
   SINGLE RETURN         JOINT RETURN       TAX BRACKET    IS EQUIVALENT TO A FULLY TAXABLE YIELD OF:
- -------------------   -------------------   -----------   ---------------------------------------------
<S>                   <C>                   <C>           <C>         <C>         <C>         <C>
     Up to $  5,131        Up to $ 10,262     15.85%         5.64%       5.94%       6.24%       6.54%
$  5,132 - $ 12,161   $ 10,263 - $ 24,322     16.70%         5.70%       6.00%       6.30%       6.60%
$ 12,162 - $ 19,193   $ 24,323 - $ 38,386     18.40%         5.82%       6.13%       6.43%       6.74%
$ 19,194 - $ 25,350   $ 38,387 - $ 42,350     20.10%         5.94%       6.26%       6.57%       6.88%
$ 25,351 - $ 26,644   $ 42,351 - $ 53,288     32.32%         7.02%       7.39%       7.76%       8.13%
$ 26,645 - $ 33,673   $ 53,289 - $ 67,346     33.76%         7.17%       7.55%       7.93%       8.30%
$ 33,674 - $ 61,400   $ 67,347 - $102,300     34.70%         7.27%       7.66%       8.04%       8.42%
$ 61,401 - $128,100   $102,301 - $155,950     37.42%         7.59%       7.99%       8.39%       8.79%
$128,101 - $278,450   $155,951 - $278,450     41.95%         8.18%       8.61%       9.04%       9.47%
      over $278,450         over $278,450     45.22%         8.67%       9.13%       9.58%      10.04%
</TABLE>

- ---------------
* Net amount subject to federal and California personal income tax after
  deductions and exemptions. Although the federal income tax brackets for 1999
  have been released, the California personal income tax brackets for 1999 have
  not been released. Consequently, the table above uses the combined brackets
  for 1998.

     The above-indicated federal income tax brackets do not take into account
the effect of a reduction in the deductibility of itemized deductions for
individual taxpayers with adjusted gross income in excess of $124,500. The tax
brackets also do not show the effects of phaseout of personal exemptions for
single filers with adjusted gross income in excess of $124,500 and joint filers
with adjusted gross income in excess of $186,800. The effective tax brackets and
equivalent taxable yields of those taxpayers will be higher than those indicated
above.


     The combined tax brackets assume that California taxes are itemized
deductions for federal income tax purposes. Investors who do not itemize
deductions on their federal income tax return will have a higher combined
bracket and higher taxable equivalent yield than those indicated above. The
applicable federal tax rates within the brackets are 15%, 28%, 31%, 36% and
39.6%.


     Yields shown are for illustration purposes only and are not meant to
represent the Trust's actual yield. No assurance can be given that the Trust
will achieve any specific tax-exempt yield. While it is expected that the Trust
will invest principally in obligations the interest from which is exempt from
the regular federal income tax and California state personal income taxes, other
income received by the Trust may be taxable. It should also be noted that the
interest earned on certain "private activity bonds," while exempt from the
regular federal income tax, is treated as a tax preference item which could
subject the recipient to the federal alternative minimum tax ("AMT"). The
illustrations assume that the AMT is not applicable and do not take into account
any tax credits that may be available.

     The information set forth above is as of the date of this Statement of
Additional Information. Subsequent tax law changes could result in prospective
or retroactive changes in the tax brackets, tax rates, and tax equivalent yields
set forth above. Investors should consult their tax adviser for additional
information.

                                      B-44
<PAGE>   98
PART C

                               OTHER INFORMATION

Item 24. Financial Statements and Exhibits

     (1)  Financial Statements:

               Included in Part A

               None

               Included in Part B

               Report of Independent Accountants(2)

               Statement of Assets and Liabilities(2)

     (2)  Exhibits

          (a)(1)    Agreement and Declaration of Trust(1)
          (b)       By-Laws(2)
          (c)       Not applicable
          (d)(1)    To be filed under amendment

          (d)(2)    Form of specimen certificate for the municipal auction rate
                     cumulative preferred shares(2)

          (e)       Dividend Reinvestment Plan(2)
          (f)       Not applicable

          (g)       Management Agreement with Colonial Management Associates,
                    Inc. (2)

          (h)       Form of Underwriting Agreement(2)
          (i)       Not applicable
          (j)       To be filed under amendment

                                      C-1
<PAGE>   99


         (k)       To be filed under amendment
         (l)       Opinion and Consent of Ropes & Gray, counsel to Registrant(2)
         (m)       Not applicable
         (n)       Consent of independent accountants(2)
         (o)       Not applicable
         (p)       Not applicable
         (q)       Not applicable

A copy of the Power of Attorney for each of Robert J. Birnbaum, Tom Bleasdale,
John Carberry, Lora S. Collins, James E. Grinnell, Richard W. Lowry, Salvatore
Macera, William E. Mayer, James L. Moody, Jr., John J. Neuhauser, Robert L.
Sullivan and Anne-Lee Verville is incorporated herein by reference to
Post-Effective Amendment No. 50 to the Registration Statement of Colonial Trust
IV, Registration Nos. 2-62492 and 811-2865, filed with the Commission on or
about November 6, 1998.


- ----------------------------------
(1)  Incorporated by reference to the Registration Statement filed with the
     Commission via EDGAR on or about August 11, 1999.

(2)  To be filed under amendment

Item 25.  Marketing Arrangements.

          See Sections _______ of Exhibit (h) of Item 24(2) of this
          Registration Statement.

Item 26.  Other Expenses of Issuance and Distribution.

          The following table sets forth the expenses to be incurred in
          connection with the Offer described in this Registration Statement:

               Registration fees(2)
               New York Stock Exchange listing fee(2)
               Printing(2)
               Accounting fees and expenses(2)
               Legal fees and expenses(2)
               Underwriters expense reimbursement(2)
               NASD fee(2)
               Miscellaneous(2)
                                                                --------
                    Total (2)                                  $
                                                                ========
(2)  To be filed under amendment

Item 27.  Persons Controlled by or under Common Control with Registrant.

          None.

Item 28.  Number of Holders of Securities

<TABLE>
<CAPTION>
                Title of Class                       Number of Record Holders
                --------------                       ------------------------
<S>                                                  <C>
                Common Shares of Beneficial Interest            -0-
</TABLE>

Item 29.  Indemnification.

          The Agreement and Declaration of Trust, as amended, filed as
          Exhibit (a)(1) to this Registration Statement provides for
          indemnification to each of the Registrant's Trustees and
          officers against all liabilities and expenses incurred in acting

                                      C-2
<PAGE>   100
                as Trustee or officer, except in the case of wilful misfeasance,
                bad faith, gross negligence or reckless disregard of the duties
                involved in the conduct of such Trustees and officers.

                Insofar as indemnification for liability arising under the
                Securities Act of 1933 may be permitted to trustees, 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 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 trustee, officer or controlling person of the
                Registrant in the successful defense of any action, suit or
                proceeding) is asserted by such trustee, 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 Act and will be governed by the final adjudication of such
                issue.

                The Registrant, Colonial Management Associates, Inc. and their
                respective trustees, directors and officers are insured by a
                directors and officers/errors and omissions liability policy.



                                     C-3
<PAGE>   101
Item 30.  Business and Other Connections of Investment Adviser

          The description of the business of Colonial Management Associates,
          Inc., the Registrant's Investment Adviser, is set forth under the
          caption "The Advisor" in the Prospectus forming part of this
          Registration Statement. The following sets forth business and other
          connections of each director and officer of Colonial Management
          Associates, Inc.

Registrant's investment adviser, Colonial Management Associates, Inc.
("Colonial"), is registered as an investment adviser under the Investment
Advisers Act of 1940 ("Advisers Act"). Colonial Advisory Services, Inc.
("CASI"), an affiliate of Colonial, is also registered as an investment adviser
under the Advisers Act. As of the end of the fiscal year, December 31, 1998,
CASI had four institutional, corporate or other accounts under management



                                      C-4
<PAGE>   102


or supervision, the market value of which was approximately $227 million. As of
the end of the fiscal year, December 31, 1998, Colonial was the investment
adviser, sub-adviser and/or administrator to 57 mutual funds, including funds
sub-advised by Colonial, the total market value of which investment companies
was approximately $18,950.90 million.


The following sets forth the business and other connections of each director and
officer of Colonial Management Associates, Inc.:

<TABLE>
<CAPTION>

(1)                       (2)                       (3)                            (4)
Name and principal
business
addresses*            Affiliation
of officers and       with            Period is through 05/31/99.  Other
directors of          investment      business, profession, vocation or
investment adviser    adviser         employment connection                Affiliation
- ------------------    ----------      --------------------------------     -----------
<S>                   <C>              <C>                                  <C>
Allard, Laurie        V.P.

Archer, Joseph A.     V.P.


Ballou, William J.    V.P.,           Liberty Trusts I through IX          Asst. Sec.
                      Asst.           Colonial High Income
                      Sec.,              Municipal Trust                   Asst. Sec.
                      Counsel         Colonial InterMarket Income
                                         Trust I                           Asst. Sec.
                                      Colonial Intermediate High
</TABLE>


                                     C-5
<PAGE>   103
<TABLE>
<CAPTION>
<S>                  <C>              <C>                                  <C>

                                         Income Fund                       Asst. Sec.
                                      Colonial Investment Grade
                                         Municipal Trust                   Asst. Sec.
                                      Colonial Municipal Income
                                         Trust                             Asst. Sec.
                                      AlphaTrade Inc.                      Asst. Clerk
                                      Liberty Funds Distributor,
                                         Inc.                              Asst. Clerk
                                      Liberty Financial Advisers,
                                         Inc.                              Asst. Sec.
                                      Liberty Funds Group LLC              Asst. Sec.
                                      Liberty Variable Investment
                                         Trust                             Asst. Sec.
                                      Liberty All-Star Equity Fund         Asst. Sec.
                                      Liberty All-Star Growth Fund,
                                         Inc.                              Asst. Sec.

Barron, Suzan M.      V.P.,           Liberty Trusts I through IX          Asst. Sec.
                      Asst.           Colonial High Income
                      Sec.,              Municipal Trust                   Asst. Sec.
                      Counsel         Colonial InterMarket Income
                                         Trust I                           Asst. Sec.
                                      Colonial Intermediate High
                                         Income Fund                       Asst. Sec.
                                      Colonial Investment Grade
                                         Municipal Trust                   Asst. Sec.
                                      Colonial Municipal Income
                                         Trust                             Asst. Sec.
                                      AlphaTrade Inc.                      Asst. Clerk
                                      Liberty Funds Distributor,
                                         Inc.                              Asst. Clerk
                                      Liberty Financial Advisers,
                                         Inc.                              Asst. Sec.
                                      Liberty Funds Group LLC              Asst. Sec.
                                      Liberty Variable Investment
                                         Trust                             Asst. Sec.
                                      Liberty All-Star Equity Fund         Asst. Sec.
                                      Liberty All-Star Growth Fund,
                                         Inc.                              Asst. Sec.
</TABLE>


                                     C-6
<PAGE>   104

<TABLE>
<CAPTION>
<S>                   <C>             <C>                                  <C>
Barsketis, Ophelia    Sr.V.P.         Stein Roe & Farnham Incorporated     Snr. V.P.

Berliant, Allan       V.P.

Bissonnette, Michael  Sr.V.P.

Boatman, Bonny E.     Sr.V.P.;        Colonial Advisory Services,
                      IPC Mbr.           Inc.                              Exec. V.P.

Bunten, Walter        V.P.

Campbell, Kimberly    V.P.

Carnabucci,
  Dominick            V.P.

Carome, Kevin         Sr.V.P.;        Liberty Funds Distributor,
                      IPC Mbr.          Inc.                               Assistant Clerk
                                      Liberty Funds Group LLC              Sr. V.P.
                                      Stein Roe & Farnham
                                        Incorporated                       General Counsel

Carroll, Sheila A.  Sr.V.P.

Citrone, Frank      Sr.V.P.


Conlin, Nancy L.    Sr. V.P.;          Liberty Trusts I through IX         Secretary
                    Sec.; Clerk        Colonial High Income
                    IPC Mbr.;            Municipal Trust                   Secretary
                    Dir; Gen.          Colonial InterMarket Income
                    Counsel              Trust I                           Secretary
                                       Colonial Intermediate High
                                         Income Fund                       Secretary
                                       Colonial Investment Grade
                                         Municipal Trust                   Secretary
                                       Colonial Municipal Income
                                         Trust                             Secretary
                                       Liberty Funds Distributor,
                                         Inc.                              Dir.; Clerk
                                       Liberty Funds Services, Inc.        Clerk; Dir.
                                       Liberty Funds Group LLC             V.P.; Gen.
                                                                           Counsel and
                                                                           Secretary
                                       Liberty Variable Investment
                                         Trust                             Secretary
</TABLE>


                                     C-7
<PAGE>   105
<TABLE>
<CAPTION>
<S>                   <C>             <C>                                  <C>
                                       Colonial Advisory Services,
                                         Inc.                              Dir.; Clerk
                                       AlphaTrade Inc.                     Dir.; Clerk
                                       Liberty Financial Advisors,
                                         Inc.                              Dir.; Sec.
                                       Liberty All-Star Equity Fund        Secretary
                                       Liberty All-Star Growth Fund,
                                         Inc.                              Secretary

Connaughton,        V.P.               Liberty Trust I through VIII        CAO; Controller
  J. Kevin                             Liberty Variable Investment
                                         Trust                             CAO; Controller
                                       Colonial High Income
                                         Municipal Trust                   CAO; Controller
                                       Colonial Intermarket Income
                                         Trust I                           CAO; Controller
                                       Colonial Intermediate High
                                         Income Fund                       CAO; Controller
                                       Colonial Investment Grade
                                         Municipal Trust                   CAO; Controller
                                       Colonial Municipal Income
                                         Trust                             CAO; Controller
                                       Liberty All-Star Equity Fund        Controller
                                       Liberty All-Star Growth Fund,
                                         Inc.                              Controller
                                       Liberty Trust IX                    Controller

Daniszewski,        V.P.
 Joseph J.

Dearborn, James     V.P.

Desilets, Marian H. V.P.               Liberty Funds Distributor,
                                         Inc.                              V.P.
                                       Liberty Trust I through IX          Asst. Sec.
                                       Colonial High Income
                                         Municipal Trust                   Asst. Sec.
                                       Colonial Intermarket Income
                                         Trust I                           Asst. Sec.
                                       Colonial Intermediate High
                                         Income Fund                       Asst. Sec.
                                       Colonial Investment Grade
</TABLE>

                                     C-8
<PAGE>   106
<TABLE>
<CAPTION>
<S>                   <C>             <C>                                  <C>
                                         Municipal Trust                   Asst. Sec.
                                       Colonial Municipal Income
                                         Trust                             Asst. Sec.
                                       Liberty Variable Investment
                                         Trust                             Asst. Sec.
                                       Liberty All-Star Equity Fund        Asst. Sec.
                                       Liberty All-Star Growth Fund,
                                         Inc.                              Asst. Sec.

DiSilva-Begley,     V.P.               Colonial Advisory Services,         Compliance
  Linda             IPC Mbr.             Inc.                              Officer

Eckelman, Marilyn   Sr.V.P.

Ericson, Carl C.    Sr.V.P.            Colonial Intermediate High
                    IPC Mbr.             Income Fund                       V.P.
                                       Colonial Advisory Services,         Pres.; CEO
                                         Inc.                              and CIO

Evans, C. Frazier   Sr.V.P.            Liberty Funds Distributor,
                                         Inc.                              Mng. Director

Feloney, Joseph L.  V.P.               Colonial Advisory Services,
                    Asst. Treas.         Inc.                              Asst. Treas.
                                       Liberty Funds Group LLC             Asst. Treas.

Finnemore,          Sr.V.P.            Colonial Advisory Services,
  Leslie W.                              Inc.                              Sr. V.P.

Franklin,           Sr. V.P.           AlphaTrade Inc.                     President
  Fred J.           IPC Mbr.           Liberty Financial Companies,        Chief
                                         Inc.                              Compliance Ofcr

Garrison, William   V.P.               Stein Roe & Farnham
                                         Incorporated                      V.P.

Gibson, Stephen E.  Dir.; Pres.;       Liberty Funds Group LLC             Dir.;
                    CEO;                                                   Pres.; CEO;
                    Chairman of                                            Exec. Cmte.
                    the Board;                                             Mbr.; Chm.
                    IPC Mbr.           Liberty Funds Distributor,
                                         Inc.                              Dir.; Chm.
                                       Colonial Advisory Services,
                                         Inc.                              Dir.; Chm.
</TABLE>


                                     C-9

<PAGE>   107

<TABLE>
<CAPTION>
<S>                   <C>             <C>                                  <C>
                                       Liberty Funds Services, Inc.        Dir.; Chm.
                                       AlphaTrade Inc.                     Dir.
                                       Liberty Trusts I through VIII       President
                                       Colonial High Income
                                         Municipal Trust                   President
                                       Colonial InterMarket Income
                                         Trust I                           President
                                       Colonial Intermediate High
                                         Income Fund                       President
                                       Colonial Investment Grade
                                         Municipal Trust                   President
                                       Colonial Municipal Income
                                         Trust                             President
                                       Liberty Financial Advisors,
                                         Inc.                              Director
                                       Stein Roe & Farnham
                                         Incorporated                      Asst. Chairman
                                       Liberty Variable Investment
                                         Trust                             President


Hanson, Loren       Sr. V.P.;
                    IPC Mbr.

Harasimowicz,       V.P.
 Stephen

Hartford, Brian     Sr.V.P.

Haynie, James P.    Sr.V.P.            Colonial Advisory Services,
                                         Inc.                              Sr. V.P.

Held, Dorothy       V.P.

Hernon, Mary        V.P.

Hounsell, Clare     V.P.               Stein Roe & Farnham
                                         Incorporated                      V.P.

Iudice, Jr.         V.P.;              Liberty Funds Group LLC             Controller,
 Philip J.          Controller                                             CAO, Asst.

</TABLE>



                                     C-10
<PAGE>   108
<TABLE>
<CAPTION>
<S>                   <C>             <C>                                  <C>
                    Asst.                                                  Treas.
                    Treasurer          Liberty Funds Distributor,          CFO,
                                         Inc.                              Treasurer
                                       Colonial Advisory Services,         Controller;
                                         Inc.                              Asst. Treas.
                                       AlphaTrade Inc.                     CFO, Treas.
                                       Liberty Financial Advisors,
                                         Inc.                              Asst. Treas.

Jacoby, Timothy J.  Sr. V.P.;          Liberty Funds Group LLC             V.P., Treasr.,
                    CFO;                                                   CFO
                    Treasurer          Liberty Trusts I through VIII       Treasr.,CFO
                                       Colonial High Income
                                         Municipal Trust                   Treasr.,CFO
                                       Colonial InterMarket Income
                                         Trust I                           Treasr.,CFO
                                       Colonial Intermediate High
                                         Income Fund                       Treasr.,CFO
                                       Colonial Investment Grade
                                         Municipal Trust                   Treasr.,CFO
                                       Colonial Municipal Income
                                         Trust                             Treasr.,CFO
                                       Colonial Advisory Services,
                                         Inc.                              CFO, Treasr.
                                       Liberty Financial Advisors,
                                         Inc.                              Treasurer
                                       Stein Roe & Farnham
                                         Incorporated                      Snr. V.P.
                                       Liberty Variable Investment
                                         Trust                             Treasurer, CFO
                                       Liberty All-Star Equity Fund        Treasurer
                                       Liberty All-Star Growth Fund,
                                         Inc.                              Treasurer
                                       Liberty Trust IX                    Treasurer

Jansen, Deborah     Sr.V.P.            Stein Roe & Farnham
                                         Incorporated                      Sr. V.P.

Jersild, North      V.P.               Stein Roe & Farnham
                                         Incorporated                      V.P.
</TABLE>


                                     C-11
<PAGE>   109

<TABLE>
<CAPTION>
<S>                   <C>             <C>                                  <C>
Johnson, Gordon     V.P.

Knudsen, Gail E.    V.P.               Liberty Trusts I through IX         Asst. Treas.
                                       Colonial High Income
                                         Municipal Trust                   Asst. Treas.
                                       Colonial InterMarket Income
                                         Trust I                           Asst. Treas.
                                       Colonial Intermediate High
                                         Income Fund                       Asst. Treas.
                                       Colonial Investment Grade
                                         Municipal Trust                   Asst. Treas.
                                       Colonial Municipal Income
                                         Trust                             Asst. Treas.
                                       Liberty Variable Investment
                                         Trust                             Asst. Treas.
                                       Liberty All-Star Equity Fund        Asst. Treas.
                                       Liberty All-Star Growth Fund,
                                         Inc.                              Asst. Treas.
Lapointe, Thomas    V.P.

Lasman, Gary        V.P.

Lennon, John E.     Sr.V.P.            Colonial Advisory Services,
                                         Inc.                              V.P.
Lenzi, Sharon       V.P.

Lessard, Kristen    V.P.

Loring, William
   C., Jr.          Sr.V.P.

MacKinnon,
    Donald S.       Sr.V.P.

Marcus, Harold      V.P.

Muldoon, Robert     V.P.

Newman, Maureen     Sr.V.P.

O'Brien, David      Sr.V.P.

Ostrander, Laura    Sr.V.P.            Colonial Advisory Services,
                                         Inc.                              V.P.
Palombo, Joseph R.  Dir.;              Colonial Advisory Services,
                    Exe.V.P.;            Inc.                              Dir.
                    IPC Mbr.;          Colonial High Income
</TABLE>



                                     C-12
<PAGE>   110
<TABLE>
<CAPTION>
<S>                   <C>             <C>                                  <C>
                                         Municipal Trust                   V.P.
                                       Colonial InterMarket
                                         Income Trust I                    V.P.
                                       Colonial Intermediate High
                                         Income Fund                       V.P.
                                       Colonial Investment Grade
                                         Municipal Trust                   V.P.
                                       Colonial Municipal Income
                                         Trust                             V.P.
                                       Liberty Trusts I through IX         V.P.
                                       Liberty Funds Services, Inc.        Director
                                       Liberty Funds Group LLC             CAO; Ex. V.P.
                                       Liberty Funds Distributor,
                                         Inc.                              Director
                                       AlphaTrade Inc.                     Director
                                       Liberty Financial Advisors,
                                         Inc.                              Director
                                       Stein Roe & Farnham
                                         Incorporated                      Exec. V.P.
                                       Liberty Variable Investment
                                         Trust                             V.P.
                                       Liberty All-Star Equity Fund        V.P.
                                       Liberty All-Star Growth Fund,
                                         Inc.                              V.P.

Peishoff, William   V.P.

Peterson, Ann T.    V.P.               Colonial Advisory Services,
                                         Inc.                              V.P.
Pielech, Mitchell   V.P.

Pope, David         V.P.

Rao, Gita           Sr.V.P.

Reading, John       V.P.;              Liberty Funds Services, Inc.        Asst. Clerk
                    Asst.              Liberty Funds Group LLC             Asst. Sec.
                    Sec.;              Colonial Advisory Services,
                    Asst.                Inc.                              Asst. Clerk
                    Clerk and          Liberty Funds Distributor,
                    Counsel              Inc.                              Asst. Clerk
                                       AlphaTrade Inc.                     Asst. Clerk
                                       Liberty Trusts I through IX         Asst. Sec.
                                       Colonial High Income
                                         Municipal Trust                   Asst. Sec.
                                       Colonial InterMarket Income
                                         Trust I                           Asst. Sec.

</TABLE>


                                     C-13
<PAGE>   111

<TABLE>
<CAPTION>
<S>                   <C>             <C>                                  <C>
                                       Colonial Intermediate High
                                         Income Fund                       Asst. Sec.
                                       Colonial Investment Grade
                                         Municipal Trust                   Asst. Sec.
                                       Colonial Municipal Income
                                         Trust                             Asst. Sec.
                                       Liberty Financial Advisors,
                                         Inc.                              Asst. Sec.
                                       Liberty Variable Investment
                                         Trust                             Asst. Sec.
                                       Liberty All-Star Equity Fund        Asst. Sec.
                                       Liberty All-Star Growth Fund,
                                         Inc.                              Asst. Sec.

Rega, Michael       V.P.               Colonial Advisory Services,
                                         Inc.                              V.P.

Richards, Scott B.  Sr.V.P.            Colonial Advisory Services,
                                         Inc.                              Snr.V.P.

Schermerhorn, Scott Sr. V.P.

Seibel, Sandra L.   V.P.               Colonial Advisory Services,
                                         Inc.                              V.P.

Shields, Yvonne     V.P.               Stein Roe & Farnham
                                         Incorporated                      V.P.

Smalley, Gregg      V.P.

Spanos, Gregory J.  Sr. V.P.           Colonial Advisory Services,
                                         Inc.                              Exec. V.P.

Stevens, Richard    V.P.               Colonial Advisory Services,
                                         Inc.                              V.P.

Stoeckle, Mark      Sr.V.P.            Colonial Advisory Services,
                                         Inc.                              V.P.

Swayze, Gary        Sr.V.P.

Thomas, Ronald      V.P.

Wallace, John       V.P.               Colonial Advisory Services,
                    Asst.Treas.          Inc.                              Asst. Treas.
                                       Liberty Funds Group LLC             Asst. Treas.
Ware, Elizabeth M.  V.P.

Wiley, Christine    V.P.
</TABLE>



                                     C-14
<PAGE>   112

<TABLE>
<CAPTION>
<S>                 <C>            <C>                            <C>
Wiley, Peter        V.P.
</TABLE>

- -----------------------------------------------
*The Principal address of all of the officers and directors of the investment
 adviser is One Financial Center, Boston, MA 02111.

Item 31.  Location of Accounts and Records


          Registrant:              Colonial California Insured Municipal Fund
                                   One Financial Center
                                   Boston, Massachusetts 02111-2621

          Investment Advisor:      Colonial Management Associates, Inc.
                                   One Financial Center
                                   Boston, Massachusetts 02111-2621

          Custodian:               The Chase Manhattan Bank
                                   270 Park Avenue
                                   New York, New York 10017-2070

          Transfer Agent:          EquiServe
                                   150 Royall Street
                                   Canton, Massachusetts 02021


Item 32.  Management Services

          Not Applicable

Item 33.  Undertakings

          (1) The Registrant hereby undertakes to suspend the offering of its
              common shares of beneficial interest until it amends its
              prospectus if (a) subsequent to the effective date of its
              registration statement, the net asset value declines more than ten
              percent from its net asset value as of the effective date of the
              registration statement or (b) the net asset value increases to an
              amount greater than its net proceeds as stated in the prospectus.

          (2) Not Applicable

          (3) Not Applicable

          (4) Not Applicable

          (5) (a) For the purposes of determining any liability under the
              Securities Act of 1933, the information omitted from the form of
              prospectus filed as part of this registration statement in
              reliance upon Rule 430A and contained in a form of prospectus
              filed by the Registrant under Rule 497(h) under the Securities Act
              of 1933 shall be deemed to be part of this registration statement
              as of the time it was declared effective.

              (b) 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 the securities at that time shall be deemed to
              be the initial bona fide offering thereof.

              (c) The Registrant undertakes to send by first class mail or other
              means designed to ensure equally prompt delivery, within two
              business days of receipt of a written or oral request, any
              Statement of Additional Information.



                                     C-15
<PAGE>   113




                                   SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, and the
Investment Company Act of 1940, as amended, the Registrant has duly caused this
Amendment to its Registration Statement on Form N-2 to be signed on its behalf
by the undersigned, thereunto duly authorized, in the City of Boston and the
Commonwealth of Massachusetts on the 27th day of September, 1999.


                   COLONIAL CALIFORNIA INSURED MUNICIPAL FUND



                         By: /s/ STEPHEN E. GIBSON
                             ---------------------
                             Stephen E. Gibson
                             President

Pursuant to the requirements of the Securities Act of 1933, this Registration
Statement has been signed below by the following persons in their capacities and
on the date indicated.

SIGNATURES                    TITLE                         DATE
- ----------                    -----                         ----



/s/ STEPHEN E. GIBSON          President (chief              September 27, 1999
- ----------------------         executive officer)
Stephen E. Gibson

/s/ J. KEVIN CONNAUGHTON       Controller and Chief          September 27, 1999
- ------------------------       Accounting Officer
J. Kevin Connaughton

/s/ TIMOTHY J. JACOBY          Treasurer and Chief           September 27, 1999
- ------------------------       Financial Officer
Timothy J. Jacoby




                                      C-16
<PAGE>   114

<TABLE>
<S>                        <C>                       <C>
ROBERT J. BIRNBAUM*             Trustee
- -------------------
Robert J. Birnbaum


TOM BLEASDALE*                  Trustee
- --------------
Tom Bleasdale


JOHN CARBERRY*                  Trustee
- --------------
John Carberry


LORA S. COLLINS*                Trustee
- ----------------
Lora S. Collins


JAMES E. GRINNELL*              Trustee
- ------------------
James E. Grinnell

RICHARD W. LOWRY*               Trustee              By:*/s/ WILLIAM J. BALLOU
- -----------------                                    --------------------------
Richard W. Lowry                                          William J. Ballou
                                                            Attorney-in-fact
                                                            For each Trustee
SALVATORE MACERA*               Trustee                     September 27, 1999
- -----------------
Salvatore Macera

WILLIAM E. MAYER*               Trustee
- -----------------
William E. Mayer


JAMES L. MOODY, JR. *           Trustee
- ---------------------
James L. Moody, Jr.


JOHN J. NEUHAUSER*              Trustee
- ------------------
John J. Neuhauser


THOMAS E. STITZEL*              Trustee
- ------------------
Thomas E. Stitzel


ROBERT L. SULLIVAN*             Trustee
- -------------------
Robert L. Sullivan


ANNE-LEE VERVILLE*              Trustee
- ------------------
Anne-Lee Verville
</TABLE>






                                      C-17

<PAGE>   115



                                  EXHIBIT INDEX


          None



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