CENTRAL ILLINOIS PUBLIC SERVICE CO
S-3, 1994-10-18
ELECTRIC & OTHER SERVICES COMBINED
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<PAGE>   1


     As filed with Securities and Exchange Commission on October 18, 1994

                                                    Registration No. 33-

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                                   

                                    FORM S-3
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                                                   

                    CENTRAL ILLINOIS PUBLIC SERVICE COMPANY
             (Exact name of registrant as specified in its charter)

            Illinois                                          37-0211380
   (State or other jurisdiction                            (I.R.S. Employer
      of incorporation or                                 Identification No.)
        organization)

                             607 East Adams Street
                          Springfield, Illinois  62739
                                  217/523-3600
                         (Address, including zip code,
                             and telephone number,
                            including area code, of
                             registrant's principal
                               executive offices)

                                  R.W. Jackson
                      Senior Vice President and Secretary
                             607 East Adams Street
                          Springfield, Illinois  62739
                                  217/523-3600
                           (Name, address, including
                            zip code, and telephone
                          number, including area code,
                             of agent for service)

<TABLE>
<S>                                                            <C>
With copy to:                                                  With copy to:
Robert A. Yolles, Esq.                                         Peter D. Clarke, Esq.
Jones, Day, Reavis & Pogue                                     Gardner, Carton & Douglas
77 West Wacker Drive                                           Quaker Tower
Suite 3500                                                     321 North Clark Street
Chicago, Illinois  60601-1692                                  Chicago, Illinois 60610-4795
312/269-4145                                                   312/245-8685
</TABLE>
<PAGE>   2
   Approximate date of commencement of proposed sale to the public:  From time
to time, after the effective date of this Registration Statement.

   If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [ ]

   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, other than securities offered only in connection with dividend or
interest reinvestment plans, check the following box.  [x]

                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
                                                        Proposed             Proposed
                                                        maximum              maximum
Title of each                     Amount                offering             aggregate           Amount of
class of securities               to be                 price                offering            registration
to be registered                  registered            per unit             price               fee
                                                                       
- -----------------------  ------------------------  -----------------  --------------------  -----------------------

<S>                                  <C>                  <C>                <C>                  <C>
First Mortgage Bonds

Medium-Term Notes                    (1)                  (1)                $50,000,000          $17,242(2)

Cumulative Preferred
  Stock Par Value
  $100 Per Share
</TABLE>


  (1)       Not applicable pursuant to General Instruction II.D. to Form S-3;
            however, in no event will the aggregate maximum offering price of
            all securities issued and sold pursuant to this Registration
            Statement exceed $50,000,000.  Any securities registered hereunder
            may be sold separately or as units with other securities registered
            hereunder.
  (2)       Calculated pursuant to Rule 457(o).

                                                                   
   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 this Registration Statement shall become
effective on such date as the Commission, acting pursuant to said Section 8(a),
may determine.
<PAGE>   3
PRELIMINARY PROSPECTUS
Subject to completion dated October 18, 1994


                                  $50,000,000

                    CENTRAL ILLINOIS PUBLIC SERVICE COMPANY

                              First Mortgage Bonds

                               Medium-Term Notes
                        (Series of First Mortgage Bonds)

                           Cumulative Preferred Stock
                            Par Value $100 Per Share

   Central Illinois Public Service Company (the "Company") may offer from time
to time, in one or more series, not more than $50,000,000 in the aggregate of
the following securities, at prices and on terms to be determined at or prior
to the time or times of sale:  (i) First Mortgage Bonds (the "Bonds"), (ii)
Medium-Term Notes, as series of First Mortgage Bonds (the "Notes"), and (iii)
shares of Cumulative Preferred Stock, par value $100 per share (the "New
Preferred") (the Bonds and the Notes are herein collectively called the "Debt
Securities", and the New Preferred and the Debt Securities are herein
collectively called the "Securities").

   The specific terms of each issue of the Securities, together with the terms
of the offering of such issue, will be set forth in an accompanying prospectus
supplement and, in the case of the Notes, a pricing supplement (collectively, a
"Prospectus Supplement").  The applicable Prospectus Supplement will set forth
with regard to the particular Securities being offered (the "Offered
Securities"), without limitation, the following:  (i) in the case of each
series of the Debt Securities, the designation or designations, aggregate
principal amount, maturity or maturities, rate or rates of interest, times of
payment of interest, any sinking fund or other redemption terms and any other
special terms of such Debt Securities; and (ii) in the case of each series of
the New Preferred, the designation thereof and the number of shares
constituting such series, dividend payment dates and dividend rate or rates (or
method of determination or calculation thereof), redemption provisions, if any,
sinking fund or purchase fund provisions, if any, and any other special terms
of such New Preferred.

The Securities will be represented either by global securities registered in
the name of a nominee of The Depository Trust Company ("DTC"), as depository
(the "Depository"), or by securities in certificated form issued to the
registered owners thereof, as set forth in the applicable Prospectus
Supplement.  Interests in any global securities will be shown on, and transfers
thereof will be effected only through, records maintained by the Depository
(with respect to its participants' interests) and by its participants or
persons that hold through such participants (with respect to the 

<PAGE>   4

        
interest of persons other than such participants).  Except in the circumstances 
described herein, certificated securities will not be issued in exchange for
global securities.

   For further information relating to the Debt Securities, see "Description of
Debt Securities" and "Book-Entry System" herein and the applicable Prospectus
Supplement.  For further information relating to the New Preferred, see
"Description of New Preferred" and "Book-Entry System" herein and the
applicable Prospectus Supplement.

THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS
A CRIMINAL OFFENSE.

   The Company may sell the Securities to or through underwriters, dealers or
agents or directly to one or more purchasers.  The applicable Prospectus
Supplement will set forth the names of any underwriters, dealers or agents
involved in the distribution of the Offered Securities, any applicable
commissions, discounts or allowances, the net proceeds to the Company, or the
means of determining the same, from any such sale and any initial public
offering price.  See "Plan of Distribution" for possible indemnification
arrangements for underwriters, dealers, agents and purchasers.



              The date of this Prospectus is              , 199 .


[SIDE:]INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT.  A
REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION.  THESE SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT BECOMES
EFFECTIVE.  THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE SECURITIES
IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
<PAGE>   5
                             AVAILABLE INFORMATION

         The Company is subject to the informational requirements of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and in
accordance therewith files reports and other information with the Securities
and Exchange Commission (the "Commission").  Reports, proxy statements and
other information filed by the Company may be inspected and copied, at
prescribed rates, at the public reference facilities maintained by the
Commission at 450 Fifth Street, N.W., Washington, D.C. 20549, and at its
regional offices located at 500 West Madison Street, Chicago, Illinois 60661
and 7 World Trade Center, New York, New York 10048.  Copies of such material
can be obtained from the Public Reference Section of the Commission, 450 Fifth
Street, N.W., Washington, D.C. 20549, at prescribed rates.

         The Company has filed with the Commission a Registration Statement on
Form S-3 under the Securities Act of 1933, as amended (the "Securities Act"),
with respect to the Securities.  This Prospectus does not contain all of the
information set forth in such Registration Statement, certain parts of which
are omitted in accordance with the rules and regulations of the Commission.
Reference is made to such Registration Statement and the exhibits thereto for
further information with respect to the Company and the Securities.  The
Company is not required to, and does not, provide annual reports to holders of
its debt securities unless specifically requested by a holder.


               INCORPORATION OF CERTAIN INFORMATION BY REFERENCE

         The following documents heretofore filed by the Company with the
Commission pursuant to the Exchange Act are incorporated herein by reference:

         1.      The Company's Annual Report on Form 10-K for the year ended
December 31, 1993 (the "1993 Form 10-K").

         2.      The Company's Quarterly Reports on Form 10-Q for the quarters
ended March 31, 1994 and June 30, 1994.

         All documents subsequently filed by the Company pursuant to Section
13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of this Prospectus
and prior to the termination of the offering or offerings made by this
Prospectus shall be deemed to be incorporated in this Prospectus by reference
and to be a part hereof from the respective dates of filing of such documents.
Any statement contained in a document incorporated by reference in this
Prospectus shall be deemed to be modified or superseded for purposes of this
Prospectus to the extent that a statement in this Prospectus or in any other
subsequently filed document which also is or is deemed to be incorporated by
reference in this Prospectus modifies or supersedes such statement.  Any
statement





                                      -2-
<PAGE>   6
so modified or superseded shall not be deemed, except as so modified or
superseded, to constitute a part of this Prospectus.

         The Company will provide without charge to each person, including any
beneficial owner, to whom this Prospectus is delivered, upon written or oral
request of such person, a copy of any or all of the documents that have been or
may be incorporated in this Prospectus by reference, other than certain
exhibits to such documents that have not been specifically incorporated by
reference herein.  Requests should be directed to C.D. Nelson, 607 East Adams
Street, Springfield, Illinois 62739, 217/523-3600.


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





                                      -3-
<PAGE>   7
                               SELECTED INFORMATION

         The following information is qualified in its entirety by the detailed
information and the financial statements and notes appearing elsewhere in this
Prospectus or in the documents incorporated in this Prospectus by reference.

                                  THE OFFERING

<TABLE>  
<S>                                         <C>
Securities Offered                          $50,000,000 aggregate amount of
                                            (i)           First Mortgage Bonds,
                                            (ii)          Medium-Term Notes (series of First Mortgage Bonds), and
                                            (iii)         Cumulative Preferred Stock, par value $100 per share

Use of Proceeds                             To redeem, refund, refinance, purchase or pay at maturity certain currently 
                                            outstanding securities of the Company and for general corporate purposes as described 
                                            under "Use of Proceeds" herein.

                                                                   THE COMPANY

Business  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electric and gas utility

Service area  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Portions of central and
                                                                                                               southern Illinois

Estimated Population of Service Area  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  820,000

Revenue Sources for 1993  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83% Electric and
                                                                                                                         17% Gas

Sources of KWH Generation for 1993  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . More than 99% coal and
                                                                                                                less than 1% oil

Estimated 1994-1998 Construction Expenditures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $431 million

Estimated Clean Air Act Construction
     Expenditures (expenditures through 1998
     included in total construction
     expenditures above)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Less than $50 million
</TABLE>





                                      -4-
<PAGE>   8
                  CERTAIN FINANCIAL INFORMATION OF THE COMPANY
                             (Dollars in thousands)

SELECTED INCOME STATEMENT DATA:


<TABLE>
<CAPTION>
                                                     YEAR ENDED DECEMBER 31,                       TWELVE
                                                 -------------------------------                MONTHS ENDED
                                            1991               1992             1993           August 31, 1994
                                            ----               ----             ----           ---------------
                                                                                                 (unaudited)
<S>                                          <C>               <C>              <C>                   <C>
OPERATING
  REVENUES  . . . . . . . . . . . . .        $710,205          $729,402         $834,556              $840,145

INCOME BEFORE
  INTEREST CHARGES  . . . . . . . . .         117,152           107,523          118,111               115,398

NET INCOME  . . . . . . . . . . . . .          75,683            72,601           84,011                82,689
</TABLE>


                   RATIO OF EARNINGS TO FIXED CHARGES AND TO
              COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS

         The ratio of earnings to fixed charges is computed by dividing
earnings by fixed charges.  The ratio of earnings to fixed charges plus
preferred stock dividends is computed by dividing earnings by the sum of fixed
charges plus preferred stock dividend requirements before income taxes.  For
the purposes of such computations (i) earnings consist of net income plus fixed
charges and income taxes; (ii) fixed charges consist of interest on long-term
debt, net of amortization of debt discount, premium and expense, interest on
provision for revenue refund and other interest charges; and (iii) preferred
stock dividend requirements before income taxes represent the preferred stock
dividends adjusted to a pre-income tax amount computed at the effective income
tax rate for the applicable period.

<TABLE>
<CAPTION>
                                                        YEAR ENDED DECEMBER 31,                       TWELVE
                                                     ------------------------------                MONTHS ENDED
                                              1989      1990      1991      1992      1993        August 31, 1994
                                              ----      ----      ----      ----      ----        ---------------
                                                                                                    (unaudited)
<S>                                          <C>       <C>       <C>       <C>        <C>                 <C>
RATIO OF EARNINGS
  TO FIXED CHARGES  . . . . . . . . . .      3.57      3.60      3.79       4.12      4.82                4.94

RATIO OF EARNINGS TO
  FIXED CHARGES PLUS
  PREFERRED STOCK
  DIVIDENDS . . . . . . . . . . . . . .      2.95      2.99      3.16       3.45      4.12                4.24
</TABLE>


                                  THE COMPANY

         The Company was organized in 1902 under the laws of the State of
Illinois.  The Company is a public utility operating





                                      -5-
<PAGE>   9
company engaged in the sale of electricity and natural gas in portions of
central and southern Illinois.  The Company generates, transmits and
distributes electricity and, through interchange agreements with other utility
systems, purchases and sells power on a firm basis, in emergency situations or
when economical to do so.  The Company sells natural gas, which it purchases
from suppliers and distributes in various parts of the territory served, and
transports natural gas purchased by end-users directly from suppliers.  CIPSCO
Incorporated is the owner of all of the outstanding Common Stock of the
Company.  The principal executive offices of the Company are located at 607
East Adams Street, Springfield, Illinois 62739, and its telephone number is
217/523-3600.


                                USE OF PROCEEDS

         The net proceeds to be received by the Company from the sale of the
Securities will be used (i) in connection with the payment at maturity or the
redemption, refunding, refinancing or purchase of certain currently outstanding
first mortgage bonds of the Company (the "Prior Securities") and (ii) for
general corporate purposes (including payment of short-term debt incurred to
finance construction expenditures and for issuance costs).  The specific
allocation of the net proceeds of a particular series of Offered Securities and
information relating to the particular Prior Securities, if any, to be paid at
maturity, redeemed, refunded, refinanced or purchased will be described in the
Prospectus Supplement related thereto.  Any Prior Securities purchased will be
purchased at a price not in excess of the then-current redemption price
applicable to such securities.  In case of the redemption, refunding or
purchase of Prior Securities, proceeds of the Offered Securities may be applied
to pay any redemption premium or purchase price in excess of the principal
amount.


                         DESCRIPTION OF DEBT SECURITIES

         The Debt Securities will be issued as one or more additional series
under, and secured by, the Indenture of Mortgage or Deed of Trust dated October
1, 1941, as amended and supplemented, and as to be further amended by one or
more supplemental indentures (each a "Supplemental Indenture") to be entered
into in connection with each series of Debt Securities, between the Company and
Bank of America Illinois (formerly Continental Bank, N.A. and formerly
Continental Illinois National Bank and Trust Company of Chicago), Chicago,
Illinois (the "Trustee") and an individual successor Co-Trustee (collectively,
the "Trustees").  Said Indenture of Mortgage or Deed of Trust, as amended and
supplemented, and each Supplemental Indenture, copies of which are filed as
exhibits to the Registration Statement (and are incorporated herein by
reference), are herein called the "Indenture."





                                      -6-
<PAGE>   10
         The following statements, unless the context otherwise indicates, are
brief summaries of the substance or general effect of certain provisions of the
Indenture.  The statements make use of defined terms and are not complete; they
are subject to all the provisions of the Indenture and are qualified in their
entirety by reference to the Indenture.

GENERAL

         Reference is made to the applicable Prospectus Supplement for the
following terms and other information with respect to the Debt Securities being
offered hereby and thereby (the "Offered Debt Securities"):  (1) the
designation or designations and the principal amount or amounts of the Offered
Debt Securities; (2) the date or dates on which the principal of the Offered
Debt Securities shall be payable; (3) the rate or rates (or method of
calculation) at which the Offered Debt Securities shall bear interest, the date
or dates from which such interest shall accrue and the dates on which such
interest shall be payable; (4) the price or prices at which, the period or
periods within which and the terms and conditions upon which the Offered Debt
Securities may be redeemed at the option of the Company; and (5) the price or
prices at which, the period or periods within which and the terms and
conditions upon which the Offered Debt Securities shall be redeemed pursuant to
any mandatory or optional sinking or debt retirement fund.  The holders of the
outstanding first mortgage bonds do not have the right to tender such first
mortgage bonds to the Company for repurchase upon the Company becoming involved
in a highly leveraged or change in control transaction, and the Company does
not currently intend to afford the holders of the Debt Securities such a right.

         Principal of and interest on the Debt Securities will be payable in
Chicago, Illinois, or New York, New York and interest is payable, at the option
of the Company, by check mailed to the registered owners of the Debt
Securities.  The Debt Securities may be issued in fully registered form without
coupons in denominations of $1,000 each or any integral multiple thereof or by
a global security registered in the name of the Depository.  Transfers and
exchanges of Debt Securities for other registered Debt Securities will be made
without charge other than for any taxes or other government charges.  The
Company will not be required (a) to issue, register, transfer or exchange Debt
Securities of a particular series and maturity during a period beginning at the
opening of business on the tenth business day next preceding any selection of
Debt Securities of such series and maturity to be redeemed and ending at the
close of business on the day on which the applicable notice of redemption is
given, (b) to register, transfer or exchange any Debt Securities selected,
called or being called for redemption in whole or in part or (c) to transfer,
exchange or register Debt Securities during the 10 days  next preceding an
interest payment date applicable to such Debt Securities.





                                      -7-
<PAGE>   11
         At August 31, 1994, the Company had outstanding $295,000,000 in
principal amount of first mortgage bonds issued under the Indenture.  Debt
Securities may be authenticated against an equivalent principal amount of first
mortgage bonds previously issued under the Indenture ("Prior Bonds") and/or
against net expenditures for bondable property, which aggregated not less than
$1,060,000,000 on August 31, 1994.  See "Issuance of Additional Debt
Securities" below.  For the five years and eight months ended August 31, 1994,
gross additions to the utility properties of the Company aggregated
approximately $517,075,000.  Gross retirements for such period were
approximately $76,444,000.

DEBT RETIREMENT

         Except as expressly set forth in any Prospectus Supplement relating to
the Offered Debt Securities, the Debt Securities will not be entitled to any
covenant providing for the retirement or amortization of Debt Securities
outstanding or for the certification of expenditures for bondable property in
lieu of such retirement.  However, with respect to the Company's first mortgage
bonds of Series K and L, the Indenture provides that during each calendar year
the Company will retire, or pay the Trustee cash sufficient to redeem, 1% of
the amount of each such Series then outstanding; or, in lieu thereof, certify
to the Trustee $1,666.67 of net expenditures for bondable property on which the
Indenture is a first mortgage lien, for each $1,000 of such first mortgage
bonds otherwise required to be retired.  Unapplied net expenditures for
bondable property and, as to first mortgage bonds of such Series K and L,
unapplied excess retirements of first mortgage bonds of such series, made in
prior years may be used to satisfy the foregoing provisions.  Certain retired
series of first mortgage bonds may be applied, to the extent of 100% of the
principal amount thereof, and any net expenditures for bondable property used
or applied to satisfy the debt retirement provisions applicable to said retired
series may be used again, as the basis for authentication of the Company's
first mortgage bonds, the withdrawal of cash or the release of property under
the Indenture.

MAINTENANCE AND RENEWAL

         The Indenture provides that so long as any first mortgage bonds,
including the Debt Securities, are outstanding, the Company will expend during
each calendar year, and certify to the Trustees, an amount equal to 15% of its
utility operating revenues for such year (after deducting from such revenues
the cost of electricity and gas purchased for resale) for (1) the maintenance
and repair of its mortgaged utility properties, (2) bondable property on which
the Indenture is a first mortgage lien and/or (3) the retirement of the
Company's first mortgage bonds (including any Debt Securities) of any series
heretofore or hereafter issued under the Indenture.  In lieu of such
requirement, the Company may pay to the Trustees, in cash, any





                                      -8-
<PAGE>   12
deficiency in the amount required to be so expended, after deducting any
unapplied excess expenditures previously made for any of such purposes.  Any
such cash may be applied to the retirement, through purchase, payment or
redemption, of the Company's first mortgage bonds (including any Debt
Securities)(such retirement by redemption to be only if the Debt Securities or
such first mortgage bonds are otherwise redeemable) or be withdrawn by the
Company to the extent of 100% of either gross or net expenditures for bondable
property on which the Indenture is a first mortgage lien.

         The Indenture also provides that (i) the Company shall maintain the
mortgaged properties in good repair and working order, (ii) the Trustee may,
and if requested by holders of a majority in principal amount of all
outstanding first mortgage bonds and furnished with the necessary funds
therefor shall, cause such properties to be inspected by an independent
engineer (not more often than at five-year intervals) to determine whether they
have been so maintained and whether any property, not retired on the Company's
books, should be so classified for the purpose of computing net expenditures
for bondable property or otherwise and (iii) the Company shall make good any
deficiency in maintenance disclosed by such engineer's report as rendered or as
modified by arbitration.

SECURITY

         The Debt Securities will be secured by the lien of the Indenture and
will rank equally with all the Company's first mortgage bonds at any time
outstanding under and secured by the Indenture, except as to differences
between series permitted by the Indenture and not affecting the rank of the
lien thereof.  In the opinion of Sorling, Northrup, Hanna, Cullen & Cochran,
Ltd., Springfield, Illinois, counsel for the Company, the Indenture constitutes
a first mortgage lien, subject only to permitted encumbrances and liens, on all
or substantially all the permanent fixed properties (other than excepted
property) now owned by the Company.  The Indenture contains provisions
subjecting after-acquired property, other than excepted property, to the lien
thereof.  Such provisions might not be effective as to proceeds, products,
rents, issues or profits of property subject to the lien of the Indenture
realized, and additional property acquired, within 90 days prior and subsequent
to the filing of a case with respect to the Company under the United States
Bankruptcy Code, state insolvency laws or other similar laws affecting the
enforcement of creditor's rights.  The Indenture excepts or excludes from the
lien thereof all cash, securities, accounts and bills receivable, choses in
action and certain judgments not deposited or pledged with the Trustees, all
[tangible] personal property held for sale, lease, rental or consumption in the
ordinary course of business, the last day of each term under any lease of
property, all gas, oil and other minerals under any property subject thereto,
and certain real estate described therein.





                                      -9-
<PAGE>   13
ISSUANCE OF ADDITIONAL DEBT SECURITIES

         The Indenture does not fix an overall dollar limitation on the
aggregate principal amount of all first mortgage bonds that may be issued or
outstanding thereunder.  First mortgage bonds may be issued from time to time
under the Indenture in a principal amount equal to: (a) 60% of eligible net
expenditures made by the Company for bondable property constructed or acquired
by it and on which the Indenture is a first mortgage lien, subject only to
permitted encumbrances and liens and prepaid liens, (b) the principal amount of
previously authenticated first mortgage bonds which have been retired or for
the retirement of which the Trustee holds the necessary funds, other than
certain first mortgage bonds not usable for the purpose under the terms of the
Indenture, and (c) the amount of money deposited with the Trustee for the
purpose, which money may be applied to the retirement of bonds or may be
withdrawn in lieu of the authentication of an equivalent principal amount of
first mortgage bonds under the Indenture provisions referred to in clauses (a)
and (b).  Upon the retirement of certain series of first mortgage bonds, any
bonds of such series and any net expenditures for bondable property used or
applied to satisfy the debt retirement provisions applicable to such series may
be used as the basis for the authentication of additional first mortgage bonds
under the Indenture.  Net expenditures for bondable property are determined as
provided in the Indenture.  In general, bondable property means any utility
plant, property or equipment owned  by the Company on January 1, 1941 or
constructed or otherwise acquired by it on or after that date and used or
useful in its utility business.  The Company has disposed of all of its
operating water utility properties and now owns and operates only electric and
gas utility properties.

         No additional first mortgage bonds may be authenticated under the
Indenture provisions referred to in clauses (a) and (c) above, or authenticated
as provided in clause (b) above, bearing a higher rate of interest than the
first mortgage bonds to be retired (unless such first mortgage bonds to be
retired would mature within five years) unless the Company's net earnings (as
described below) for a 12-month period ending within 90 days next preceding
such authentication were at least equal to twice the interest for one year on
(1) all first mortgage bonds to be outstanding under the Indenture immediately
after such authentication, other than first mortgage bonds for the retirement
of which the Trustees hold the necessary funds and (2) all other indebtedness
then secured by a lien equal or prior to the Indenture on property of the
Company, with certain exceptions.

         "Net earnings" of the Company for any period means, presently, the
earnings of the Company, computed in accordance with accepted principles of
accounting and determined by deducting from the Company's total gross earnings
and income for the period, all its operating expenses for the period, including





                                      -10-
<PAGE>   14
maintenance, repairs, rentals, insurance, taxes on income and other taxes,
depreciation, retirements, renewals and replacements, but not amortization, all
as provided in the Indenture.  The Supplemental Indenture dated December 1,
1973 amended the foregoing definition of "net earnings" to require the
deduction, in computing such net earnings, of all taxes other than income taxes
(instead of all taxes, including income taxes).  The definition of "net
earnings" as it read immediately prior to the amendment thereof will remain in
effect, and said definition as amended will not become effective and operative,
until all the first mortgage bonds of Series K and L now outstanding under the
Indenture shall have been retired or all the holders thereof shall have
consented to said amendment, as provided in said Supplemental Indenture dated
December 1, 1973.  Holders of first mortgage bonds of Series W, X, Y and Z and
Newton Series are bound, and holders of first mortgage bonds of each subsequent
series issued under the Indenture (including the Debt Securities) will likewise
be bound, by the amended definition of "net earnings" when it becomes effective
and operative.

ACQUISITION OF PROPERTY SUBJECT TO A PRIOR LIEN

         The Indenture presently provides that, so long as first mortgage bonds
of Series K and L and Newton Series are outstanding, the Company will not
acquire any property of a value in excess of $1,000,000 which at the time of
acquisition is subject to a lien equal or prior to the Indenture (other than
permitted encumbrances and liens and prepaid liens) unless, at that time, (a)
the principal amount of all outstanding obligations secured by such equal or
prior lien shall not exceed 60% of the fair value of any bondable property so
acquired and (b) the net earnings of such property during a 12-month period
ending within 90 days next preceding such acquisition were at least equal to
twice the annual interest charge on such obligations, except any of such
obligations for the retirement of which the necessary funds are deposited under
such lien or with the Trustee.  The foregoing covenant will be extended to
Offered Debt Securities only to the extent specified in the accompanying
Prospectus Supplement and only as amended as described below.  The Supplemental
Indenture dated May 15, 1992 amended the Indenture to provide that upon the
effectiveness of such amendment as described below the dollar amount referred
to above shall be the lesser of (i) $25,000,000 or (ii) 10 percent of utility
plant, less accumulated depreciation, of the Company at the time of
acquisition, but in no event less than $1,000,000.  Such amendment will be
effective upon the retirement or with the consent of the holders of all the
Company's first mortgage bonds Series K and L and Newton Series.  Holders of
first mortgage bonds of Series W, X, Y and Z are bound, and holders of first
mortgage bonds of each subsequent series issued under the Indenture (including
the Debt Securities) will likewise be bound, by the foregoing amendment when it
becomes effective as described.





                                      -11-
<PAGE>   15
LIMITATIONS ON COMMON STOCK DIVIDENDS

         The Indenture provides in effect that, so long as any first mortgage
bonds of all prior series are outstanding, the Company will not declare or pay
any dividends on its Common Stock (other than in stock), or make any other
distribution on or purchase any of its Common Stock, unless, for the period
beginning January 1, 1941 to the date of such payment, distribution or
purchase, the total amount charged or provided by the Company for maintenance
and repairs and provided for depreciation of properties subject to the lien of
the Indenture, plus the earned surplus (retained earnings) of the Company
earned during such period and  remaining after any such payment, distribution
or purchase, shall aggregate not less than 15% of the Company's total utility
operating revenues for the period, after deducting from such revenues the cost
of electricity and gas purchased for exchange or resale.  For the period
January 1, 1941 to August 31, 1994, the total of the amounts so expended and
provided by the Company for such maintenance, repairs and depreciation, plus
the undistributed earned surplus accumulated during the period, aggregated
about 22.9% of such revenues and, exclusive of such earned surplus, aggregated
about 19.3% of such revenues.  First mortgage bonds (including the Debt
Securities) may be issued in the future which are entitled to the benefits of
more stringent or less stringent covenants with respect to payments of
dividends by the Company, or may be entitled to no such covenants.  The
foregoing covenant will be extended to Offered Debt Securities only to the
extent specified in the accompanying Prospectus Supplement.

MODIFICATION OF INDENTURE

         The terms and provisions of the Indenture may be modified or amended
from time to time by a supplemental indenture executed by the Company and the
Trustees and without the consent of bondholders, for any one or more of the
purposes provided in the Indenture.  Such purposes include, among others, (1)
any change or modification of any of the terms or conditions of the Indenture,
provided that such change or modification would not adversely affect the first
mortgage bonds then outstanding and is made effective only with respect to
first mortgage bonds authenticated after the execution of such supplemental
indenture and (2) any other change or modification of such terms or conditions
which is not inconsistent with the terms, and which shall not impair the
security, of the Indenture.

         By Supplemental Indenture dated December 1, 1973, the Indenture was
amended, effective upon the retirement or with the consent of the holders of
all of the Company's first mortgage bonds Series K and L, to provide that the
Indenture may be amended in any respect with the consent of the holders of not
less than 66-2/3% in principal amount of all first mortgage bonds of all series
then outstanding that would be affected thereby, except that, without the
consent of the holder of each outstanding first mortgage bond affected thereby,
no such





                                      -12-
<PAGE>   16
amendment shall, among other things, (i) extend the time or times or otherwise
affect the terms of payment of the principal, interest or premium in respect of
any first mortgage bond, or reduce the principal amount of any first mortgage
bond or any premium thereon or the rate of interest thereon, (ii) impair the
right of any bondholder to institute suit for the enforcement of any such
payment in respect of its first mortgage bonds, (iii) permit the creation of
any lien ranking prior to, or on a parity with, the lien of the Indenture,
other than permitted encumbrances and liens or prepaid liens, (iv) deprive any
nonassenting bondholder of a lien on the mortgaged property for the security of
the bondholder's first mortgage bonds or (v) reduce the percentage in principal
amount of first mortgage bonds, the consent of the holders of which is required
for any such amendment.  Holders of first mortgage bonds of Series W, X, Y and
Z and Newton Series are bound, and holders of first mortgage bonds of each
subsequent series issued under the Indenture (including the Debt Securities)
will likewise be bound, by the foregoing amendment when it becomes effective as
described.

         The Supplemental Indenture dated May 15, 1992 further amended the
Indenture to provide that the percentage of bondholders necessary to consent to
amendments shall be 51% (instead of 66-2/3% as described above).  Such
amendment will be effective upon (i) the effectiveness of the amendment
included in the Supplemental Indenture dated December 1, 1973 described above
and (ii) the retirement or with the consent of the holders of all the Company's
first mortgage bonds Series K and L and Newton Series.  Holders of first
mortgage bonds of Series W, X, Y and Z are bound, and holders of first mortgage
bonds of subsequent series issued under the Indenture (including the Debt
Securities) will likewise be bound, by the foregoing amendment when it becomes
effective as described.

OTHER INDENTURE PROVISIONS

         Holders of a majority in principal amount of the first mortgage bonds
secured by the Indenture have the right to direct the time, method and place of
conducting proceedings for remedies available to, or exercising any trust or
power of, the Trustees.  However, the Trustees may decline to follow such
directions in certain circumstances specified in the Indenture; the Trustees
are not required to exercise powers of entry or sale under the Indenture; and
the Trustees are entitled to be indemnified against expenditures incurred in
connection with taking any directed action or proceeding.

         A "default" or an "event of default" under the Indenture means:  (a)
failure to pay the principal of any first mortgage bond when due at maturity or
otherwise; (b) failure to pay first mortgage bond interest within 60 days after
its due date; (c) failure to pay the principal of, or interest on, any prior
lien bond, continued beyond the grace period (if any) specified





                                      -13-
<PAGE>   17
in the lien securing such bond; (d) failure of the Company for 90 days after
written demand to comply with any other covenant or condition in the Indenture
or in any first mortgage bond or any prior lien bond or lien; or (e) certain
events relating to bankruptcy, insolvency, assignment or receivership.  The
Trustees are required to give notice to bondholders of defaults known to the
Trustees, within 90 days after the occurrence thereof; provided that the
Trustees may withhold giving notice to bondholders of defaults (other than any
default in payment of interest, principal or sinking or purchase fund
installment in respect of any first mortgage bond) if the Trustees determine in
good faith that such withholding is in the interest of the bondholders.  Upon
default, the Trustees may, among other remedies, and upon written notice from
the holders of a majority in principal amount of first mortgage bonds then
outstanding under the Indenture shall, declare the principal of all first
mortgage bonds to be immediately due and payable.  Upon certain terms and
conditions, the declaration of acceleration may be rescinded and waived.

         The Company is required to furnish to the Trustee certificates of
officers and engineers and, in certain cases, of accountants in connection with
the authentication of first mortgage bonds, withdrawal of money, release of
property and other matters, and opinions of counsel as to the lien of the
Indenture and other matters.  The Company also is required to furnish to the
Trustee, not less frequently than annually, a certificate as to the Company's
compliance with all the conditions and covenants under the Indenture, including
the satisfaction of the maintenance and renewal, and the debt retirement,
provisions of the Indenture and an opinion of counsel with respect to the lien
of the Indenture.

RELATIONSHIP WITH THE TRUSTEE

         The Company maintains a general checking account with and may use
other services of Bank of America Illinois, Chicago, Illinois, the Trustee.





                                      -14-
<PAGE>   18
                          DESCRIPTION OF NEW PREFERRED

GENERAL

         The authorized capital stock of the Company is divided into three
classes:  45,000,000 shares of Common Stock without par value ("Common Stock"),
of which 25,452,373 shares (all owned by CIPSCO Incorporated) were outstanding
at August 31, 1994; 2,600,000 shares of the Cumulative Preferred Stock without
par value ("No Par Preferred"), issuable in series, of which no shares were
outstanding at August 31, 1994; and 2,000,000 shares of the Cumulative
Preferred Stock, par value $100 per share ("$100 Par Value Preferred"),
issuable in series.  At August 31, 1994 nine series totaling 800,000 shares of
the $100 Par Value Preferred were outstanding.  When used in this Prospectus,
the term "Preferred Stock," unless the context indicates otherwise, means all
the authorized shares of No Par Preferred and the $100 Par Value Preferred
(including the New Preferred), whether currently outstanding or hereafter
issued.

         Reference is made to the applicable Prospectus Supplement for the
following terms and other information with respect to the New Preferred being
offered hereby and thereby (the "Offered New Preferred"): (1) the class and
series designation; (2) the number of shares in such series; (3) the dividend
payment dates and the dividend rate or rates or method of determination or
calculation thereof; (4) applicable redemption provisions, if any; (5) sinking
fund or purchase fund provisions, if any; (6) stated value, if any; and (7) any
other special terms applicable thereto.  The New Preferred may be issued in
certificated form or in "book-entry form" through the facilities of the
Depository.

         Certain of the terms and provisions of the Preferred Stock are set
forth in the Company's Restated Articles of Incorporation (the "Articles").
The other terms and provisions of each series of New Preferred will be set
forth in the resolution adopted by the Company's Board of Directors (the
"Board") establishing such series of New Preferred.  The following statements,
unless the context otherwise indicates, are brief summaries of the substance or
general effect of certain provisions of the Articles.  Such statements make use
of defined terms, are not complete, and are intended only to outline such
provisions in general terms.  Reference is made to the provisions of the
Articles (a copy of which is filed as an exhibit to this Registration Statement
and which is incorporated herein by reference) and the laws of the State of
Illinois.

ISSUANCE IN SERIES

         The authorized but unissued shares of Preferred Stock may be issued in
one or more series from time to time upon such terms and in such manner, with
such variations as to dividend rates (which may be fixed or variable), dividend
periods and payment dates, the prices at which, and the terms and conditions on





                                      -15-
<PAGE>   19
which, shares may be redeemed or repurchased, and sinking fund provisions, if
any, as may be determined by the Board.  Except for such characteristics, as to
which the Board has discretion, all series of the $100 Par Value Preferred rank
equally and are alike in all respects.  Except for such characteristics and the
amount payable upon the liquidation, dissolution or winding up of the Company,
the stated value and the terms and conditions, if any, upon which shares may be
converted, as to which the Board has discretion, all series of the No Par
Preferred rank equally and are alike in all respects.  The aggregate stated
value of the issued and outstanding No Par Preferred shall not exceed
$65,000,000 at any time.

DIVIDEND RIGHTS

         Holders of Preferred Stock are entitled to receive in respect of each
share held, from (and including) the date of issue thereof, cumulative
dividends on the par or stated value thereof at the rate or rates applicable
thereto, and no more, in preference to the Common Stock, payable quarterly or
for such other periods as may be fixed by the Board, when and as declared by
the Board out of any surplus or net profits of the Company legally available
for the purpose.  No dividend may be paid on or set apart for any share of
Preferred Stock in respect of a dividend period unless, at the same time, there
shall be paid on or set apart for all shares of such stock then outstanding and
having a dividend period ending on the same date, dividends in such an amount
that the holders of all such shares of such stock shall receive or have set
apart for them a uniform percentage of the full dividend to which they are
respectively entitled and unless all dividends on the Preferred Stock, for all
preceding dividend periods, have been fully paid or declared and funds set
apart for the payment thereof.  Further, no dividend may be paid on or set
apart for any share of Preferred Stock unless all amounts required to be paid
and set aside for any sinking fund for the redemption or purchase of shares of
any series of Preferred Stock outstanding, with respect to all preceding
sinking fund dates, have been paid or set aside in accordance with the terms of
such series of Preferred Stock.

OPTIONAL REDEMPTION AND REPURCHASE PROVISIONS

         Subject to restrictions, if any, on redemptions set forth in the
applicable Prospectus Supplement, the New Preferred will be redeemable, at the
option of the Company, in whole at any time or in part from time to time, on
not less than 30 days' notice.  See the accompanying Prospectus Supplement for
a description of provisions, if any, for mandatory redemption and redemption at
the option of the Company of the Offered New Preferred.

SINKING FUND OR PURCHASE FUND PROVISIONS

         No sinking fund redemptions or purchases in respect of the New
Preferred may be made, or funds set aside for such purposes,





                                      -16-
<PAGE>   20
unless dividends on all shares of Preferred Stock of any series for all past
dividend periods shall have been made in full or declared and funds set apart
for their payment.  See the accompanying Prospectus Supplement for a
description of provisions, if any, for purchase through a sinking fund or
otherwise of the Offered New Preferred.

VOTING RIGHTS

         Under Illinois law, each share of Common Stock and each share of
Preferred Stock is entitled to one vote on each matter voted on at all meetings
of stockholders, with the right of cumulative voting in the election of
directors and the right to vote as a class on certain questions.  CIPSCO
Incorporated owns 100% of the outstanding Common Stock of the Company.  The
Articles give to holders of the Preferred Stock certain special voting rights
designed to protect their interests with respect to specified corporate
actions, including certain amendments to the Articles, the issuance of
Preferred Stock or parity stock, the issuance or assumption of certain
unsecured indebtedness, and mergers, consolidations or sales or leases of
substantially all of the Company's assets.  See "Restrictions on Certain
Corporate Actions."

LIQUIDATION RIGHTS

         In the event of any liquidation, dissolution or winding up (voluntary
or involuntary) of the Company, holders of Preferred Stock are entitled to
receive an amount equal to the aggregate par or stated value of their shares
and any unpaid accrued dividends thereon, before any payment or distribution is
made to holders of the Common Stock.  Each series of Preferred Stock otherwise
ranks on a parity with each other series as to liquidation rights.

RESTRICTIONS ON CERTAIN CORPORATE ACTIONS

         The Articles provide in effect that, so long as any Preferred Stock is
outstanding:

                 (A)  The Company shall not, without a two-thirds vote of each
         class of the Preferred Stock (the $100 Par Value Preferred and the No
         Par Preferred each voting separately as a class), unless the
         retirement of such stock is provided for, (1) amend the Articles to
         create any prior ranking stock or security convertible into such
         stock, or issue any such stock or convertible security, or (2) change
         the terms and provisions of the Preferred Stock so as to affect
         adversely the holders' rights or preferences, except that the
         requisite vote of the shares of only the class or series (if less than
         all series) so affected shall be required, or (3) issue any shares of
         Preferred Stock or of equal ranking stock, except to retire or in
         exchange for an equal amount thereof, unless (a) the gross income of
         the Company





                                      -17-
<PAGE>   21
         available for interest for a 12-month period ending within the 15
         months next preceding such issue was at least 1-1/2 times the sum of
         (i) one year's interest (adjusted by provision for amortization of
         debt discount and expense or of premium, as the case may be) on all
         the funded debt and notes of the Company maturing more than 12 months
         after the date of issue of such shares that will be outstanding at
         such date, and (ii) one year's dividends on the Preferred Stock and
         all equal or prior ranking stock to be outstanding after the issue of
         such shares or convertible securities, and (b) the sum of the Common
         Stock capital and surplus accounts of the Company shall be not less
         than the total amount of the involuntary liquidation preference of all
         Preferred Stock and all equal or prior ranking stock to be outstanding
         after the issue of such shares or convertible securities; and

                 (B)  The Company shall not, without a majority vote of each
         class of the Preferred Stock (the $100 Par Value Preferred and the No
         Par Preferred each voting separately as a class), unless the
         retirement of such stock is provided for, (1) issue or assume any
         "unsecured debt securities," except to refund any secured or unsecured
         debt of the Company or to retire any Preferred Stock or equal or prior
         ranking stock, if immediately after such issue or assumption the total
         amount of all its unsecured debt securities to be outstanding would
         exceed 20% of the sum of all outstanding secured debt securities and
         the capital and surplus of the Company, or (2) merge or consolidate
         with any other corporation, or sell or lease substantially all of its
         assets, unless the transaction has been approved by all regulatory
         bodies having jurisdiction.  "Unsecured debt securities" is defined in
         the Articles to mean all unsecured notes, debentures or other
         securities representing unsecured indebtedness which have a final
         maturity, determined as of the date of issuance or assumption, of less
         than two years.

         For purposes of making the calculations referred to in paragraph
(A)(3) above, the "dividend requirement for one year" applicable to any shares
of Preferred Stock or such parity stock or convertible securities proposed to
be issued which will have dividends determined according to an adjustable,
floating or variable rate shall be determined on the basis of the dividend rate
to be applicable to such series of Preferred Stock or such parity stock or
convertible securities on the date of such issuance and the "interest for one
year" on funded indebtedness or notes outstanding and the "dividend requirement
for one year" on any outstanding shares of any series of Preferred Stock or
shares of stock, if any, ranking prior to or on a parity with the Preferred
Stock, or securities convertible into such stock, and having interest or
dividends determined according to an adjustable, floating or variable rate
shall be determined on the basis of the daily weighted average annual interest
or dividend rate applicable to such security (a) during any consecutive





                                      -18-
<PAGE>   22
twelve-month period selected by the Company, which period ends within 90 days
prior to the issue of the shares or convertible securities proposed to be
issued or (b) if the security has been outstanding for less than twelve full
calendar months, during such shorter period beginning on the date of issuance
of such security and ending on a date selected by the Company, which date is
not more than 45 days prior to the issue of the shares or convertible
securities proposed to be issued; provided that if such security shall have
been issued within 45 days prior to the issue of the shares or convertible
securities proposed to be issued, the interest or dividend rates shall be that
applicable on the date of issuance of such security.

PREEMPTIVE RIGHTS

         Holders of the Preferred Stock have no preemptive rights to subscribe
for or purchase any securities issued by the Company.

MISCELLANEOUS

         The $100 Par Value Preferred has no conversion rights.  There is no
restriction on the repurchase or redemption by the Company of its stock while
there is any arrearage in the payment of dividends or sinking fund installments
in respect of its shares, except in circumstances when the repurchase or
redemption of its shares is otherwise prohibited or restricted by statute or
common law or, as summarized herein, by the Articles or by the Indenture.

         The Company reserves the right to increase, decrease or reclassify its
authorized stock of any class or series thereof, and to amend or repeal any
provision in the Articles or any amendment thereto, in the manner prescribed by
law, subject to the conditions and limitations prescribed in the Articles; and
all rights conferred on stockholders in the Articles are subject to this
reservation.

         The New Preferred, when issued by the Company upon receipt of the
consideration therefor, will be fully paid and non-assessable.

         Except as otherwise provided in a Prospectus Supplement, the Transfer
Agents for the New Preferred will be Illinois Stock Transfer Company, Chicago,
Illinois, and Harris Trust and Savings Bank, Chicago, Illinois; and the
Registrar will be Harris Trust and Savings Bank, Chicago, Illinois.





                                      -19-
<PAGE>   23
                               BOOK-ENTRY SYSTEM

         The Securities, at the option of the Company, may be issued as either
securities in certificated form or global securities.  If, as described in the
applicable Prospectus Supplement, the Company elects to use a book-entry system
with respect to any Offered Securities, upon issuance, all Debt Securities
having the same issuance date, maturity date, redemption provisions and
interest rate or rates, and all shares of each series of New Preferred will be
represented by one fully-registered global security (the "Global Security").
The Global Security will be deposited with, or on behalf of, the Depository,
and registered in the name of the Depository or a nominee of the Depository.

         So long as the Depository, or its nominee, is the registered owner of
a Global Security, such Depository or such nominee, as the case may be, will be
considered the owner of such Global Security for all purposes, including any
notices and voting.  Except in the circumstances described below,  the owners
of beneficial interests in a Global Security will not be entitled to have any
individual Securities registered in their names, will not receive or be
entitled to receive physical delivery of any such Securities and will not be
considered the owners of Debt Securities under the Indenture or of New
Preferred, as the case may be.  Accordingly, each person holding a beneficial
interest in a Global Security must rely on the procedures of the Depository
and, if such person is not a Direct Participant (as herein defined), on
procedures of the Direct Participant through which such person holds its
interest, to exercise any of the rights of a registered owner of such Security.

         If the Depository is at any time unwilling or unable to continue as
depository and a successor depository is not appointed, the Company will issue
individual securities in certificated form ("Certificated Securities") in
exchange for the Global Security or Global Securities representing the
corresponding book-entry Securities represented by one or more Global
Securities and, in such event, will issue Certificated Securities in exchange
for the Global Securities representing the corresponding book-entry Securities.
Further, in such event, an owner of a beneficial interest in a Global Security
representing book-entry Securities may, on terms acceptable to the Company and
the Depository for such Global Security, receive such book-entry Securities as
Certificated Securities.  In any such instance, an owner of a beneficial
interest in a Global Security representing book-entry Securities will be
entitled to physical delivery of individual Certificated Securities equal in
principal amount to, or in the case of New Preferred, equal to the aggregate
number of shares of New Preferred of, such beneficial interest and to have such
Certificated Securities registered in the name of such owner.  Certificated
Debt Securities will be issued as registered book-entry Debt Securities in
denominations, of $1,000 unless otherwise specified in a Prospectus Supplement.





                                      -20-
<PAGE>   24
         The following is based solely on information furnished by DTC:

         DTC will act as securities depository for the Global Securities.  The
Global Securities will be issued as fully-registered securities registered in
the name of Cede & Co. (DTC's partnership nominee).  One fully-registered
Global Security certificate will be issued for each issue of the Global
Securities, each in the aggregate principal amount (or aggregate number of
shares) of such issue and will be deposited with DTC.

         DTC is a limited-purpose trust company organized under the New York
Banking Law, a "banking organization" within the meaning of the New York
Banking Law, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered pursuant to the provisions of Section 17A of the Securities
Exchange Act of 1934.  DTC holds securities that its participants 
("Participants") deposit with DTC.  DTC also facilitates the settlement among
Participants of securities transactions, such as transfers and pledges, in
deposited securities through electronic computerized book-entry changes in
Participants' accounts, thereby eliminating the need for physical movement of
securities certificates.

         Direct Participants include securities brokers and dealers, banks,
trust companies, clearing corporations, and certain other organizations.  DTC
is owned by a number of its Direct Participants and by the New York Stock
Exchange, Inc., the American Stock Exchange, Inc.  and the National Association
of Securities Dealers, Inc.  Access to the DTC system is also available to
others such as securities brokers and dealers, banks, and trust companies that
clear through or maintain a custodial relationship with a Direct Participant,
either directly or indirectly ("Indirect Participants").  The rules applicable
to DTC and its Participants are on file with the Commission.

         Purchases of Global Securities under the DTC system must be made by or
through Direct Participants, which will receive a credit for such purchases of
Global Securities on DTC's records.  The ownership interest of each actual
purchaser of each Global Security ("Beneficial Owner") is in turn to be
recorded on the Direct and Indirect Participants' records.  Beneficial Owners
will not receive written confirmation from DTC of their purchase, but
Beneficial Owners are expected to receive written confirmations providing
details of the transaction, as well as periodic statements of their holdings,
from the Direct or Indirect Participant through which the Beneficial Owner
entered into the transaction.  Transfers of ownership interests in the Global
Securities are to be accomplished by entries made on the books of Participants
acting on behalf of Beneficial Owners.  Beneficial Owners will not receive
certificates representing their ownership interests in the Global Securities,
except in the





                                      -21-
<PAGE>   25
event that use of the book-entry system for the Global Securities is
discontinued.

         To facilitate subsequent transfers, all Global Securities deposited by
Participants with DTC are registered in the name of DTC's partnership nominee,
Cede & Co.  The deposit of Global Securities with DTC and their registration
in the name of Cede & Co. effect no change in beneficial ownership.  DTC has no
knowledge of the actual Beneficial Owners of the Global Securities; DTC's
records reflect only the identity of the Direct Participants to whose accounts
such Global Securities are credited which may or may not be the Beneficial
Owners.  The Participants will remain responsible for keeping account of their
holdings on behalf of their customers.

         Conveyance of notices and other communications by DTC to Direct
Participants, by Direct Participants to Indirect Participants, and by Direct
Participants and Indirect Participants to Beneficial Owners will be governed by
arrangements among them, subject to any statutory or regulatory requirements as
may be in effect from time to time.

         If the Global Securities are redeemable, redemption notices shall be
sent to Cede & Co.  If less than all of the Global Securities are being
redeemed, DTC's practice is to determine by lot the amount of the interest of
each Direct Participant in such issue to be redeemed.

         Neither DTC nor Cede & Co. will consent or vote with respect to the
Global Securities.  Under its usual procedures, DTC mails an omnibus proxy to
the Company as soon as possible after the record date.  The omnibus proxy
assigns Cede & Co.'s consenting or voting rights to those Direct Participants
whose accounts the Global Securities are credited on the record date
(identified in a listing attached to the omnibus proxy).

         Principal and interest payments or dividends on the Global Securities
will be made to DTC.  DTC's practice is to credit Direct Participants' accounts
on the date on which interest or a dividend is payable in accordance with the
respective holdings shown on DTC's records, unless DTC has reason to believe
that it will not receive payment on such date.  Payments by Participants to
Beneficial Owners will be governed by standing instructions and customary
practices, as is the case with securities held for the accounts of customers in
bearer form or registered in "street name," and will be the responsibility of
such Participant and not of DTC, the Trustee, or the Company, subject to any
statutory or regulatory requirements as may be in effect from time to time.
Payment of principal and interest on Debt Securities represented by Global
Securities to DTC is the responsibility of the Company and the Trustee; and
payments of dividends or other amounts relating to New Preferred represented by
Global Securities is the responsibility of the Company.  Disbursement of such
payments to Direct Participants shall be the responsibility of DTC, and





                                      -22-
<PAGE>   26
disbursement of such payments to the Beneficial Owners shall be the
responsibility of Direct and Indirect Participants.

         DTC may discontinue providing its services as securities depository
with respect to the Global Securities at any time by giving reasonable notice
to the Company and, if applicable, the Trustee.  Under such circumstances, in
the event that a successor securities depository is not obtained, Securities in
certificated form are required to be printed and delivered.  The Company may 
decide to discontinue use of the system of book-entry transfers through DTC (or 
a successor securities depository).  In that event, Securities in certificated
form are required to be printed and delivered.

         The information in this section concerning DTC and DTC's book-entry
system has been obtained from sources (including DTC) that the Company believes
to be reliable, but the Company takes no responsibility for the accuracy
thereof.

         The underwriters, dealers or agents of any Offered Securities may be
Direct Participants of DTC.

         NONE OF THE COMPANY, THE TRUSTEE, OR ANY AGENT FOR PAYMENT ON OR
REGISTRATION OF TRANSFER OR EXCHANGE OF ANY GLOBAL SECURITY WILL HAVE ANY
RESPONSIBILITY OR LIABILITY FOR ANY ASPECT OF THE RECORDS RELATING TO OR
PAYMENTS MADE ON ACCOUNT OF BENEFICIAL INTERESTS IN SUCH GLOBAL SECURITY OR FOR
MAINTAINING, SUPERVISING OR REVIEWING ANY RECORDS RELATING TO SUCH BENEFICIAL
INTERESTS.


                              PLAN OF DISTRIBUTION

         The Company may sell the Securities (i) through underwriters or
dealers; (ii) directly to one or more institutional purchasers; or (iii)
through agents.  The Prospectus Supplement with respect to each series of
Offered Securities will set forth the terms of the offering of such Offered
Securities, including the name or names of any underwriters, the purchase price
of such Offered Securities and the proceeds to the Company from such sale, any
underwriting discounts and other items constituting underwriters' compensation,
any initial offering price and any discounts, commissions or concessions
allowed or reallowed or paid to dealers.  Any initial offering price and any
discounts, concessions or commissions allowed or reallowed or paid to dealers
may be changed from time to time.

         If underwriters are used in an offering, the Offered Securities will
be acquired by the underwriters for their own account and may be resold from
time to time in one or more transactions, including negotiated transactions, at
a fixed public offering price or at varying prices determined at the time of
sale.  The Offered Securities may be offered to the public either through
underwriting syndicates represented by one or more managing underwriters or
directly by one or more of such firms.





                                      -23-
<PAGE>   27
The specific managing underwriter or underwriters, if any, will be named in the
Prospectus Supplement relating to the particular Offered Securities together
with the members of the underwriting syndicate, if any.  Unless otherwise set
forth in the Prospectus Supplement, the obligations of the underwriters to
purchase the particular Offered Securities will be subject to certain
conditions precedent and the underwriters will be obligated to purchase all
such Offered Securities if any are purchased.

         Offered Securities may be sold directly by the Company or through
agents designated by the Company from time to time.  The Prospectus Supplement
will set forth the name of any agent involved in the offer or sale of the
Offered Securities in respect of which the Prospectus Supplement is delivered
and any commissions payable by the Company to such agent.  Unless otherwise
indicated in the Prospectus Supplement, any such agent will be acting on a best
efforts basis for the period of its appointment.

         Any underwriters, dealers or agents participating in the distribution
of the Offered Securities may be deemed to be underwriters and any discounts or
commissions received by them on the sale or resale of the Offered Securities
may be deemed to be underwriting discounts and commissions under the Securities
Act.  Agents, dealers and underwriters may be entitled, under agreements
entered into with the Company, to indemnification by the Company against
certain liabilities, including liabilities under the Securities Act, and to
contribution with respect to payments which the agents, dealers or underwriters
may be required to make in respect thereof.  Agents, dealers and  underwriters
may engage in transactions with or perform services for the Company in the
ordinary course of business.

         Unless otherwise specified in a Prospectus Supplement, the Securities
will not be listed on a national securities exchange.  No assurance can be
given that any broker-dealer will make a market in any series of Offered
Securities, and, in any event, no assurance can be given as to the liquidity of
the trading market for any of the Offered Securities.  The Prospectus
Supplement will state, if known, whether or not any broker-dealer intends to
make a market in the Offered Securities.  If no such determination has been
made, the Prospectus Supplement will so state.


                                 LEGAL OPINIONS

         The validity of the Securities will be passed upon for the Company by
Jones, Day, Reavis & Pogue, 77 West Wacker Drive, Chicago, Illinois 60601-1692.
Certain legal matters will be passed upon for any underwriters, dealers,
purchasers or agents by Gardner, Carton & Douglas, Quaker Tower, 321 North
Clark Street, Chicago, Illinois 60610-4795.





                                      -24-
<PAGE>   28
         The statements as to matters of law or legal conclusions with respect
to the jurisdiction of certain regulatory commissions expressed under Item 1,
Business -- Regulation in the 1993 Form 10-K have been prepared or reviewed by
Jones, Day, Reavis & Pogue.  The statements as to matters of law or legal
conclusions expressed under the caption "Description of Debt Securities --
Security" in this Prospectus have been prepared or reviewed by Sorling,
Northrup, Hanna, Cullen & Cochran, Ltd.  Such statements are made upon the
authority of such counsel, who have given their opinions that such statements
as to such matters are correct.


                                    EXPERTS

         The audited financial statements and schedules of the Company, as of
December 31, 1993 and 1992 and for each of the three years in the period ended
December 31, 1993 included in the 1993 Form 10-K and incorporated by reference
in this Prospectus and elsewhere in the Registration Statement, have been
audited by Arthur Andersen LLP, independent public accountants, as indicated in
their report with respect thereto, and are incorporated by reference herein in
reliance upon the authority of said firm as experts in giving said report.





                                      -25-
<PAGE>   29
<TABLE>
<CAPTION>
                <S>                                                            <C>   
                ----------------------------------------------------            -------------------------------------------------
                ----------------------------------------------------            -------------------------------------------------
                          No dealer, salesman or any other person
                 has been authorized to give any information or to
                 make any representations other than those                                       $50,000,000
                 contained in this Prospectus and, if given or
                 made, such information or representations must not
                 be relied upon as having been authorized.  This                   Central Illinois Public Service Company
                 Prospectus does not constitute an offer to sell or
                 the solicitation of an offer to buy any securities
                 other than the securities described in this                                First Mortgage Bonds
                 Prospectus or an offer to sell or the solicitation
                 of an offer to buy such securities in any                                    Medium-Term Notes
                 circumstances in which such offer or solicitation                    (Series of First Mortgage Bonds)
                 is unlawful.  Neither the delivery of this
                 Prospectus nor any sale made  hereunder or                              Cumulative Preferred Stock
                 thereunder shall create, under any circumstances,                        Par Value $100 Per Share
                 any implication that the information contained
                 herein or therein is correct as of any time
                 subsequent to the date of such information.

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

                        TABLE OF CONTENTS

                                                                  Page
                                                                  ----
                 Available Information . . . . . . . . . . . .     2
                 Incorporation of Certain
                   Information by Reference  . . . . . . . . .     2
                 Selected Information  . . . . . . . . . . . .     4
                 The Company . . . . . . . . . . . . . . . . .     5
                 Use of Proceeds . . . . . . . . . . . . . . .     6
                 Description of Debt Securities  . . . . . . . .   6                             PROSPECTUS
                 Description of New Preferred  . . . . . . . . .  15
                 Book-Entry System . . . . . . . . . . . . . . .  20                      ----------------------------
                 Plan of Distribution  . . . . . . . . . . . . .  23  
                 Legal Opinions  . . . . . . . . . . . . . . . .  24                      Dated
                 Experts . . . . . . . . . . . . . . . . . . . .  25        
                ----------------------------------------------------            -------------------------------------------------
                ----------------------------------------------------            -------------------------------------------------
</TABLE>


<PAGE>   30
              PART II.  INFORMATION NOT REQUIRED IN THE PROSPECTUS


ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

<TABLE>        
   <S>                                                                                                                  <C>
   Securities and Exchange Commission,
      registration fee    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 17,242*
   Illinois Commerce Commission Fee   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  100,000**
   Illinois Franchise Fees on New Preferred Stock   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   75,000
   Printing of Registration Statement, Prospectus,                                                      
      Supplemental Indentures, Bonds, Notes,                                                            
       Stock Certificates, Etc  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26,000
   Fees of Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   33,250
   Fees of Rating Agencies  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28,750
   Fees of Accountants  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   25,000
   Expenses and counsel fees for qualification or                                                       
      registration of the Bonds, Notes and New                                                          
       Preferred Stock under "blue sky" laws  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    7,500
   Counsel fees   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   90,000
   Miscellaneous expenses, including traveling,                                                         
      telephone, copying, shipping, recording, etc                                                                         7,258
                                                                                                                         =======
                                                                                                        
                        Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   $410,000
                                                                                                                        ========
</TABLE>                                                      
                                                              
- ----------------                    
   *  Exact amount
  **  May be less if certain credits are available

ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS

   Section 8.75 of the Illinois Business Corporation Act provides that the
registrant may, and in some cases must, indemnify each director and each
officer of the registrant against expenses (including attorneys' fees),
judgments, fines and amounts paid in settlement actually and reasonably
incurred by him or her by reason of the fact that he or she is or was a
director or officer of the registrant, subject to certain conditions and
limitations.

   The registrant's Bylaws provide, in general, for mandatory indemnification
of directors and officers by the registrant to the fullest extent permitted by
law.  In addition, certain officers of the Company have entered into
Indemnification Agreements with the Company pursuant to which the Company is
obligated to provide certain indemnification to such officers.

   Officers and directors of the registrant are covered by insurance policies
purchased by the registrant under which they are insured (subject to exceptions
and limitations specified in the policies) against expenses and liabilities
arising out of actions, suits or proceedings to which they are parties by
reason of being or having been such directors or officers.





                                      II-1
<PAGE>   31
ITEM 16.  EXHIBITS

<TABLE>
<CAPTION>
EXHIBIT
NUMBER              DESCRIPTION OF DOCUMENTS
- -------             ------------------------
<S>                 <C>
1.01                Form of First Mortgage Bond Underwriting Agreement.
                    (Exhibit 1.01 in File No. 33-59674) Incorporated by reference.

1.02                Form of Preferred Stock Underwriting Agreement. (Exhibit 1.02 in File No. 33-59674) Incorporated by reference.

1.03                Form of Medium-Term Note Distribution Agreement.

3.01                Restated Articles of Incorporation of the Company (Exhibit 3(b) to the Company's Form 10-Q for the quarter 
                    ended March 31, 1994, File No. 1-3672).  Incorporated by reference.

3.02                Form of proposed resolution establishing the New Preferred.  (Exhibit 3.02 in File No. 33-59674) Incorporated 
                    by reference.

4.01                Indenture of Mortgage or Deed of Trust dated October 1, 1941 from the Company to Bank of America Illinois 
                    (formerly Continental Bank, N.A. and formerly Continental Illinois National Bank and Trust Company of Chicago)
                    and Edmond B. Stofft, as Trustees.  (Exhibit 2.01 in File No. 2-60232.)  Supplemental Indentures dated,     
                    respectively, September 1, 1947, January 1, 1949, February 1, 1952, September 1, 1952, June 1, 1954, February 1,
                    1958, January 1, 1959, May 1, 1963, May 1, 1964, June 1, 1965, May 1, 1967, April 1, 1970, April 1, 1971,
                    September 1, 1971, May 1, 1972, December 1, 1973, March 1, 1974, April 1, 1975, October 1, 1976, November 1,
                    1976, October 1, 1978, August 1, 1979, February 1, 1980, February 1, 1986, May 15, 1992, July 1, 1992, September
                    15, 1992 and April 1, 1993, between the Company and the Trustees under the Indenture of Mortgage or Deed of
                    Trust referred to above (Amended Exhibit 7(b) in File No. 2-7341; Second Amended Exhibit 7.03 in File No.
                    2-7795; Second Amended Exhibit 4.07 in File No. 2-9353; Amended Exhibit 4.05 in File No. 2-9802; Amended Exhibit
                    4.02 in File No. 2-10944; Amended Exhibit 2.02 in File No. 2-13866; Amended Exhibit 2.02 in File No. 2-14656;
                    Amended Exhibit 2.02 in File No. 2-21345; Amended Exhibit 2.02 in File No. 2-22326; Amended Exhibit 2.02 in File
                    No. 2-23569; Amended Exhibit 2.02 in File No. 2-26284; Amended Exhibit 2.02 in File 
</TABLE>





                                      II-2
<PAGE>   32
<TABLE>
<S>                 <C>
                    No. 2-36388; Amended Exhibit 2.02 in File No. 2-39587; Amended Exhibit 2.02 in File No. 2-41468; Amended Exhibit
                    2.02 in File No. 2-43912; Exhibit 2.03 in File No. 2-60232; Amended Exhibit 2.02 in File No. 2-50146; Amended
                    Exhibit 2.02 in File No. 2-52886; Second Amended Exhibit 2.04 in File No. 2-57141; Amended Exhibit 2.04 in File
                    No. 2-57557; Amended Exhibit 2.06 in File No. 2-62564; Exhibit 2.02(a) in File No. 2-65914 and Exhibit      
                    2.02(a) in File No. 2-66380; Amended Exhibit 4.02 in File No. 33-3188; Exhibit 4.02 to Form 8-K dated May 15,
                    1992; Exhibit 4.02 to Form 8-K dated July 1, 1992; Exhibit 4.02 to Form 8-K dated September 15, 1992; Exhibit
                    4.02 to Form 8-K dated March 30, 1993. Incorporated by reference.

4.02                Form of proposed Supplemental Indenture providing for Bonds or Notes and amending the Indenture in certain 
                    respects.

5                   Opinion of Jones, Day, Reavis & Pogue regarding legality.

12                  Computation of Ratios

23.01               Consent of Jones, Day, Reavis & Pogue (included in Exhibit 5).

23.02               Consent of Sorling, Northrup, Hanna, Cullen & Cochran, Ltd.

23.03               Consent of Arthur Andersen LLP.

24                  Powers of Attorney.

25                  Form T-1 and Form T-2 statements of eligibility of trustees.

</TABLE>




                                      II-3
<PAGE>   33
ITEM 17.  UNDERTAKINGS

   The undersigned registrant hereby undertakes as follows:

   (1)      To file, during any period in which offers or sales are being made,
a post-effective amendment to this registration statement:

         (i)        To include any prospectus required by section 10(a)(3) of
                    the Securities Act of 1933;

        (ii)        To reflect in the prospectus any facts or events arising
                    after the effective date of the registration statement (or
                    the most recent post-effective amendment thereof) which,
                    individually or in the aggregate, represent a fundamental
                    change in the information set forth in the registration
                    statement;

       (iii)        To include any material information with respect to the
                    plan of distribution not previously disclosed in the
                    registration statement or any material change to such
                    information in the registration statement;


       Provided, however, that paragraphs (1)(i) and (1)(ii) do not apply if
   the information required to be included in a post-effective amendment by
   those paragraphs is contained in periodic reports filed by the registrant
   pursuant to section 13 or section 15(d) of the Securities Exchange Act of
   1934 that are incorporated by reference in the registration statement.

   (2)      That, for the purpose of determining any liability under the
Securities Act of 1933, each such post-effective amendment shall be deemed to
be a new registration statement relating to the securities offered therein, and
the offering of such securities at that time shall be deemed to be the initial
bona fide offering thereof.

   (3)      To remove from registration by means of a post-effective amendment
any of the securities being registered which remain unsold at the termination
of the offering.

   (4)      That, for purposes of determining any liability under the
Securities Act of 1933, each filing of the registrant's annual report pursuant
to section 13(a) or section 15(d) of the Securities Exchange Act of 1934 that
is incorporated by reference in this registration statement shall be deemed to
be a new registration statement relating to the securities offered herein, and
the offering of such securities at that time shall be deemed to be the initial
bona fide offering thereof.

   (5)      Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors,





                                      II-4
<PAGE>   34
officers and controlling persons of the registrant pursuant to the provisions
referred to in Item 15, 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 that Act and is, therefore,
unenforceable.  In the event that a claim for indemnification against such
liabilities (other than the payment by the registrant of expenses incurred or
paid by a director, officer or controlling person of the registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the
matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in that Act and will be governed by the
final adjudication of such issue.





                                      II-5
<PAGE>   35
                                   SIGNATURES

     THE REGISTRANT.  Pursuant to the requirements of the Securities Act of
1933, as amended, the registrant certifies that it has reasonable grounds to
believe that it meets all of the requirements for filing on Form S-3 (including
the reasonable belief that the security rating requirement of General
Instruction I.B.2. will be met by the time of sale of any Securities registered
hereunder) and has duly caused this registration statement or amendment
thereto, as the case may be, to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Springfield and State of Illinois.

Dated:    October 18, 1994      
                
                          Central Illinois Public Service Company
                
                
                
                          By:     /s/ C.L. Greenwalt
                                  -----------------------------
                                  C.L. Greenwalt
                                  President and Chief Executive Officer
                
   Pursuant to the requirements of the Securities Act of 1933, as amended, this
registration statement or amendment thereto, as the case may be, has been
signed by the following persons in the capacities and on the date indicated.

Dated:    October 18, 1994      


   Signature                        Title
   ---------                        -----
                                   
                                   
                                   
/s/ C.L. Greenwalt                                   
- --------------------------         
C.L. Greenwalt                      President and Chief Executive Officer 
                                    and Director (principal executive officer)
/s/ R.W. Jackson                                   
- --------------------------         
R.W. Jackson                        Senior Vice President Finance and Secretary 
                                    (principal financial officer) and Director
/s/ J.C. Fiaush
- --------------------------         
J.C. Fiaush                         Controller (principal accounting officer)
                                   




                                      II-6
<PAGE>   36
           *             
- -------------------------
William J. Alley                                   Director


           *             
- -------------------------
John L. Heath                                      Director


           *             
- -------------------------
Gordon R. Lohman                                   Director


           *             
- -------------------------
Hanne M. Merriman                                  Director


           *             
- -------------------------
Donald G. Raymer                                   Director


           *             
- -------------------------
Thomas L. Shade                                    Director


           *             
- -------------------------
James W. Wogsland                                  Director




*  The undersigned by signing his name hereunto has hereby signed this
   registration statement or amendment thereto, as the case may be, on behalf
   of the above-named officers and/or directors on the date stated above,
   pursuant to a power of attorney executed on behalf of each such officer
   and/or director and filed as Exhibit 24 to this registration statement.


/s/ R.W. Jackson                               
- -------------------------
   R.W. Jackson





                                      II-7
<PAGE>   37
EXHIBIT INDEX

<TABLE>
<CAPTION>
EXHIBIT
NUMBER              DESCRIPTION OF DOCUMENTS
- -------             ------------------------
<S>                 <C>
1.01                Form of First Mortgage Bond Underwriting Agreement.  (Exhibit 1.01 in File No. 33-59674) Incorporated by 
                    reference.

1.02                Form of Preferred Stock Underwriting Agreement. (Exhibit 1.02 in File No. 33-59674) Incorporated by reference.

*1.03               Form of Medium-Term Note Distribution Agreement.

3.01                Restated Articles of Incorporation of the Company (Exhibit 3(b) to the Company's Form 10-Q for the quarter 
                    ended March 31, 1994, File No. 1-3672).  Incorporated by reference.

3.02                Form of proposed resolution establishing the New Preferred.  (Exhibit 3.02 in File No. 33-59674) Incorporated 
                    by reference.

4.01                Indenture of Mortgage or Deed of Trust dated October 1, 1941 from the Company to Bank of America Illinois 
                    (formerly Continental Bank, N.A. and formerly Continental Illinois National Bank and Trust Company of Chicago)
                    and Edmond B. Stofft, as Trustees.  (Exhibit 2.01 in File No. 2-60232.)  Supplemental Indentures dated,
                    respectively, September 1, 1947, January 1, 1949, February 1, 1952, September 1, 1952, June 1, 1954, February 1,
                    1958, January 1, 1959, May 1, 1963, May 1, 1964, June 1, 1965, May 1, 1967, April 1, 1970, April 1, 1971,
                    September 1, 1971, May 1, 1972, December 1, 1973, March 1, 1974, April 1, 1975, October 1, 1976, November 1,
                    1976, October 1, 1978, August 1, 1979, February 1, 1980, February 1, 1986, May 15, 1992, July 1, 1992, September
                    15, 1992 and April 1, 1993, between the Company and the Trustees under the  Indenture of Mortgage or Deed of
                    Trust referred to above (Amended Exhibit 7(b) in File No. 2-7341; Second Amended Exhibit 7.03 in File No.
                    2-7795; Second Amended Exhibit 4.07 in File No. 2-9353; Amended Exhibit 4.05 in File No. 2-9802; Amended Exhibit
                    4.02 in File No. 2-10944; Amended Exhibit 2.02 in File No. 2-13866; Amended Exhibit 2.02 in File No. 2-14656;
                    Amended Exhibit 2.02 in File No. 2-21345; Amended Exhibit 2.02 in File No. 2-22326; Amended Exhibit 2.02 in File
                    No. 2-23569; Amended Exhibit 2.02 in File No. 2-26284; Amended Exhibit 2.02 in File No. 2-36388; Amended Exhibit
                    2.02 in File 
</TABLE>
<PAGE>   38
<TABLE>
<S>                 <C>
                    No. 2-39587; Amended Exhibit 2.02 in File No. 2-41468; Amended Exhibit 2.02 in File No. 2-43912; Exhibit 2.03 
                    in File No. 2-60232; Amended Exhibit 2.02 in File No. 2-50146; Amended Exhibit 2.02 in File No. 2-52886; Second
                    Amended Exhibit 2.04 in File No. 2-57141; Amended Exhibit 2.04 in File No. 2-57557; Amended Exhibit 2.06 in File
                    No. 2-62564; Exhibit 2.02(a) in File No. 2-65914 and Exhibit 2.02(a) in File No. 2-66380; Amended Exhibit 4.02
                    in File No. 33-3188; Exhibit 4.02 to Form 8-K dated May 15, 1992; Exhibit 4.02 to Form 8-K dated July 1, 1992;
                    Exhibit 4.02 to Form 8-K dated September 15, 1992; Exhibit 4.02 to Form 8-K dated March 30, 1993.  Incorporated
                    by reference.

*4.02               Form of proposed Supplemental Indenture providing for Bonds or Notes and amending the Indenture in certain 
                    respects.

*5                  Opinion of Jones, Day, Reavis & Pogue regarding legality.

*12                 Computation of Ratios

23.01               Consent of Jones, Day, Reavis & Pogue (included in Exhibit 5).

*23.02              Consent of Sorling, Northrup, Hanna, Cullen & Cochran, Ltd.

*23.03              Consent of Arthur Andersen LLP.

*24                 Powers of Attorney.

*25                 Form T-1 and Form T-2 statements of eligibility of trustees.
</TABLE>





- --------------------------                         
*  Filed herewith

<PAGE>   1
                                                                    Exhibit 1.03

                                                                  Draft 10/17/94





                    CENTRAL ILLINOIS PUBLIC SERVICE COMPANY
                 FIRST MORTGAGE BONDS, MEDIUM-TERM NOTE SERIES


                             DISTRIBUTION AGREEMENT



                                                                          , 1994















Dear Sirs:

  Central Illinois Public Service Company, an Illinois corporation (the
"Company"), confirms its agreement with ____________________________________
_______________________________________________________ (each referred to as an
"Agent" and collectively referred to as the "Agents") with respect to the issue
and sale by the Company of its First Mortgage Bonds, Medium-Term Note Series
described herein (the "Bonds").  The Bonds will be issued under its Indenture
of Mortgage or Deed of Trust dated October 1, 1941, executed by the Company to
Bank of America Illinois, Chicago, Illinois, as trustee (the "Trustee") and
____________________, co-trustee (collectively, the "Trustees"), as previously
supplemented and amended by supplemental trust indentures and as to be further
supplemented and amended by a supplemental trust indenture relating to each
series of Bonds (such Indenture of Mortgage or Deed of Trust as so supplemented
and amended and as to be so supplemented and amended is referred to as the
"Indenture").  Each series of Bonds shall have the maturity range, interest
rate, if any, optional and mandatory redemption provisions and other terms set
forth in the Prospectus referred to below as it may be amended or supplemented
from time to time.  Each series of Bonds will be issued, and the terms and
rights thereof established, from 


<PAGE>   2

time to time by the Company in accordance with the Indenture.  As of the date
hereof, the Company has authorized the issuance and sale of up to $50,000,000
aggregate principal amount of Bonds through the Agents pursuant to the terms of
this Agreement.  It is understood, however, that the Company may from time to
time authorize the issuance of additional Bonds and that such additional Bonds
may be sold through or to the Agents pursuant to the terms of this Agreement,
all as though the issuance of such Bonds were authorized as of the date hereof.

  This Agreement provides both for the sale of Bonds by the Company directly to
purchasers, in which case the Agents will act as agents of the Company in
soliciting Bond purchases, and (as may from time to time be agreed to by the
Company and the applicable Agent) to an Agent as principal for resale to
purchasers.

  The Company has filed with the Securities and Exchange Commission (the "SEC")
a registration statement on Form S-3 (No. 33-_______) for the registration of
debt securities and preferred stock, including the Bonds, under the Securities
Act of 1933, as amended (the "1933 Act"), and the offering thereof from time to
time in accordance with Rule 415 of the rules and regulations of the SEC under
the 1933 Act (the "1933 Act Regulations").  Such registration statement has
been declared effected by the SEC.  Such registration statement (and any
further registration statements which may be filed by the Company for the
purpose of registering additional Bonds and in connection with which this
Agreement is included or incorporated by reference as an exhibit) and the
prospectus constituting a part thereof, and any prospectus supplements relating
to the Bonds, including all documents incorporated therein by reference, as
from time to time amended or supplemented by the filing of documents pursuant
to the Securities Exchange Act of 1934 (the "1934 Act") or the 1933 Act or
otherwise, are referred to herein as the "Registration Statement" and the
"Prospectus", respectively, except that if any revised prospectus shall be
provided to the Agents by the Company for use in connection with the offering
of the Bonds which is not required to be filed by the Company pursuant to Rule
424(b) of the 1933 Act Regulations, the term "Prospectus" shall refer to such
revised prospectus from and after the time it is first provided to each Agent
for such use.





                                       2
<PAGE>   3
SECTION 1.         APPOINTMENT AS AGENTS.

         (a)     Appointment of Agents.  Subject to the terms and conditions
stated herein and subject to the reservation by the Company of the right to
sell Bonds directly on its own behalf, the Company hereby appoints the Agents
as its agents for the purpose of soliciting purchases of the Bonds from the
Company by others and agrees that, except as otherwise contemplated herein,
whenever the Company determines to sell Bonds directly to an Agent as principal
for resale to others, it will enter into a Terms Agreement (hereafter defined)
relating to such sale in accordance with the provisions of Section 3(b) hereof.
The Agents are authorized to appoint sub-agents or to engage the services of
any other broker or dealer in connection with the offer or sale of the Bonds.
The Company agrees that, during the period the Agents are acting as the
Company's agents hereunder, the Company will not contract or solicit potential
investors introduced to it by an Agent to purchase the Bonds.  The Company may
appoint, upon 30 days prior written notice to the Agents, additional persons to
serve as Agents hereunder, but only if each such additional person agrees to be
bound by all of the terms of this Agreement as an Agent.

         (b)     Reasonable Efforts Solicitations; Right to Reject Offers.
Upon receipt of instructions from the Company, each Agent will use its
reasonable efforts to solicit purchases of such principal amount of the Bonds
as the Company and such Agent shall agree upon from time to time during the
term of this Agreement, it being understood that the Company shall not approve
the solicitation of purchases of Bonds in excess of the amount that shall be
authorized by the Company from time to time or in excess of the principal
amount of Bonds registered pursuant to the Registration Statement.  The Agents
will have no responsibility for maintaining records with respect to the
aggregate principal amount of Bonds sold, or of otherwise monitoring the
availability of Bonds for sale under the Registration Statement.  Each Agent
will communicate to the Company, orally or in writing, each offer to purchase
Bonds, other than those offers rejected by such Agent.  Each Agent shall have
the right, in its discretion reasonably exercised, to reject any proposed
purchase of Bonds, as a whole or in part, and any such rejection shall not be
deemed a breach of such Agent's agreement contained herein.  The Company may
accept or reject any proposed purchase of the Bonds, in whole or in part.

         (c)     Solicitations as Agent; Purchases as Principal.  In soliciting
purchases of the Bonds on behalf of the Company, the Agents shall act solely as
agents for the Company and not as principal.  Each Agent shall make reasonable
efforts to assist the Company in obtaining performance by each purchaser whose
offer to purchase Bonds  has been solicited by such Agent and accepted by the
Company.  The Agents shall not have any liability to the Company if any such
purchase is not consummated for any reason.  The Agents shall not have any
obligation to purchase Bonds from the Company as principal, but each Agent may
agree from time to time to purchase Bonds as principal.  Any such purchase of
Bonds by an





                                       3
<PAGE>   4
Agent as principal shall be made pursuant to a Terms Agreement in accordance
with Section 3(b) hereof.

         (d)     Reliance.  The Company and each Agent agree that any Bonds the
placement of which such Agent arranges shall be placed by such Agent, and any
Bonds purchased by such Agent shall be purchased, in reliance on the
representations, warranties, covenants and agreements of the Company contained
herein and on the terms and conditions and in the manner provided herein.

SECTION 2.         REPRESENTATIONS AND WARRANTIES.

         (a)     The Company represents and warrants to each Agent as of the
date hereof, as of the date of each acceptance by the Company of an offer for
the purchase of Bonds (whether through an Agent as agent or to an Agent as
principal), as of the date of each delivery of Bonds (whether through such
Agent as agent or to the Agent as principal) (the date of each such delivery to
an Agent as principal being hereafter referred to as a "Settlement Date"), and
as of any time that the Registration Statement or the Prospectus shall be
amended or supplemented (other than by an amendment or supplement providing
solely for a change in the interest rates of Bonds or similar changes) or there
is filed with the SEC any document incorporated by reference into the
Prospectus (other than any Current Report on Form 8-K relating exclusively to
the issuance of debt securities or preferred stock under the Registration
Statement, unless the Agents shall otherwise specify) (each of the times
referenced above being referred to herein as a "Representation Date") as
follows:

                 (i)      Registration Statement and Prospectus.  The Company
         meets the requirements for use of Form S-3 under the 1933 Act.  There
         are no contracts or documents of the Company that are required to be
         filed as exhibits to the Registration Statement or any documents
         incorporated by reference therein by the 1933 Act, the 1933 Act
         Regulations, the 1934 Act or the rules and regulations of the SEC
         thereunder (the "1934 Act Regulations") which have not been so filed.
         No order preventing or suspending the use of the Prospectus or the
         Registration Statement has been issued by the SEC.  The Registration
         Statement complied, at the date of this Agreement, and as of the
         applicable Representation Date will comply, in all material respects
         with the requirements of the 1933 Act and the 1933 Act Regulations and
         the Trust Indenture Act of 1939, as amended (the "1939 Act") and the
         rules and regulations of the SEC thereunder.  The Registration
         Statement, at the date of this Agreement did not, and at each time
         thereafter at which any amendment to the Registration Statement
         becomes effective or any Annual Report on Form 10-K is filed by the
         Company with the SEC and as of each Representation Date will not,
         contain an untrue statement of a material fact or omit to state a
         material fact required to be stated therein or necessary to make the
         statements therein, in the light of the circumstances under which they
         were made, not misleading.  The





                                       4
<PAGE>   5
         Prospectus, as of the date of this Agreement complies, and as
         of each Representation Date will comply, in all material respects with
         the 1933 Act and the 1933 Act Regulations, and the Prospectus, as of
         the date of this Agreement does not, and as of each Representation
         Date will not, contain any untrue statement of a material fact or omit
         to state any material fact required to be stated therein or necessary
         to make the statements therein not misleading.  The Company makes no
         representations or warranties in this subsection as to (A) that part
         of the Registration Statement which shall constitute the Statements of
         Eligibility (Forms T-1 and T-2) under the 1939 Act of the Trustees or
         (B) the information contained in or omitted from the Registration
         Statement or the Prospectus in reliance upon and in conformity with
         information furnished in writing to the Company by the Agents
         specifically for use in the Registration Statement or Prospectus.

                (ii)     Incorporated Documents.  The documents incorporated by
         reference in the Prospectus as of the date of this Agreement, when
         they were filed with the SEC, conformed in all material respects to
         the requirements of the 1934 Act and the 1934 Act Regulations, and
         none of such documents contained an untrue statement of a material
         fact or omitted to state a material fact required to be stated therein
         or necessary to make the statements therein, in light of the
         circumstances under which they were made, not misleading; and any
         further documents so filed and incorporated by reference subsequent to
         the date hereof, when they are filed with the SEC, will conform in all
         material respects to the requirements of the 1934 Act and the 1934 Act
         Regulations and will not contain an untrue statement of material fact
         or omit to state a material fact required to be stated therein or
         necessary to make the statements therein, in light of the
         circumstances under which they were made, not misleading; provided
         that the Company makes no representations or warranties as to (A) that
         part of the Registration Statement which shall constitute the
         Statements of Eligibility (Forms T-1 and T-2) under the 1939 Act of
         the Trustees or (B) the information contained in or omitted from the
         Registration Statement or the Prospectus in reliance upon and in
         conformity with information furnished in writing to the Company by the
         Agents specifically for use in the Registration Statement or
         Prospectus.

                 (iii)    Financial Statements and Accountants.  The financial
         statements of the Company filed as part of or incorporated by
         reference in the Registration Statement and Prospectus fairly present
         the financial condition of the Company as of the dates indicated and
         the results of its operations and cash flows for the periods therein
         specified; and have been prepared in conformity with generally
         accepted accounting principles applied on a consistent basis
         throughout the periods involved, except as otherwise indicated
         therein.  Arthur Andersen LLP, who have certified or examined
         certain financial statements incorporated by reference in the





                                       5
<PAGE>   6
         Registration Statement, are independent public accountants as required
         by the 1933 Act and the 1933 Act Regulations.

                 (iv)     Due Incorporation and Qualification.  The Company has
         been incorporated and is validly existing as a corporation and is in
         good standing under the laws of the State of Illinois, with due
         corporate authority to own and operate the properties now used by it
         and to carry on its business as now being carried on by it, as
         described in the Prospectus; and the Company is not required by the
         nature of its business to be licensed or qualified as a foreign
         corporation in any other state or jurisdiction; and except as set
         forth in the Prospectus, the Company has all material licenses and
         approvals required to conduct its business.  The Company has no
         majority- owned subsidiaries (within the meaning of Rule 1-02(m) of
         Regulation S-X (17 CFR Part 210) with total assets or total
         liabilities in excess of $100,000.

                 (v)      Authorization and Validity of the Bonds and the
         Indenture.  On or prior to the applicable date of each delivery of
         Bonds (whether through an Agent as agent or pursuant to a Terms
         Agreement), the Indenture and the Bonds will be duly authorized by the
         Company.  The Indenture has been duly qualified under the 1939 Act.
         When duly executed and delivered by the Company, assuming due
         authorization, execution and delivery of the Indenture by the
         Trustees, and when the Bonds have been duly executed, authenticated,
         issued and delivered as contemplated by this Agreement and by the
         Indenture, the Indenture and the Bonds will constitute valid and
         binding obligations of the Company enforceable in accordance with
         their respective terms, except as enforcement of provisions of the
         Indenture may be limited by the laws of the State of Illinois
         affecting the remedies for the enforcement of the security provided
         for in the Indenture or limited by bankruptcy, insolvency or other
         applicable laws affecting the enforcement of creditors' rights
         generally and except for the availability of equitable remedies.

                 (vi)     Material Changes.  Except as contemplated in the
         Prospectus, subsequent to the respective dates as of which information
         is given in the Registration Statement and the Prospectus, (A) the
         Company has not sustained any loss or interference material to the
         Company with its business from fire, explosion, flood or other
         calamity, whether or not covered by insurance, or from any labor
         dispute or court or governmental action, order or decree, (B) the
         Company has not incurred any liabilities or obligations, direct or
         contingent, or entered into any transactions, not in the ordinary
         course of business, that are material to the Company, and (C) there
         has not been any material change in the capital stock, short-term debt
         or long-term debt of the Company, or any material adverse change, or
         any development involving a prospective material adverse change, in
         the condition (financial or





                                       6
<PAGE>   7
         other), business, net worth or results of operations of the Company.

                 (vii)    Legal Proceedings.  Except as set forth in the
         Prospectus, there is not pending or, to the knowledge of the Company,
         threatened, any action, suit or proceeding, to which the Company is a
         party, before or by any court or governmental agency or body, that
         might result in any material adverse change in the condition
         (financial or other), business, net worth or results of operations of
         the Company, or might materially and adversely affect the properties
         or assets of the Company.


                (viii)   No Defaults; Regulatory Approvals.  The execution,
         delivery and performance of this Agreement and the consummation of the
         transactions herein contemplated will not conflict with or result in a
         breach or violation of any of the terms and provisions of, or
         constitute a default under, any contract, indenture, mortgage, deed of
         trust, loan or note agreement, lease or other agreement or instrument
         to which the Company is a party or by which it is bound and that is
         material to the Company or to which any material property of the
         Company is subject, the Company's Restated Articles of Incorporation,
         or by-laws, or any order, rule or regulation of any court or
         governmental agency or body having jurisdiction over the Company and
         that is material to the Company or any of its material properties; the
         Illinois Commerce Commission (the "ICC") has issued its final order
         (the "ICC Order") authorizing the issuance and sale of the Bonds, the
         ICC Order is in full force and effect, and no other consent, approval,
         authorization or order of any court or governmental agency or body is
         required for the consummation of the transactions contemplated by this
         Agreement in connection with the issuance or sale of the Bonds by the
         Company hereunder, except such as may be required under state
         securities laws and except for the approval of the ICC as described
         above, and the Company has full power and lawful authority to
         authorize, issue and sell the Bonds on the terms and conditions herein
         set forth.

                 (ix)     ICC Application.  The written information contained
         in any application filed by the Company with the ICC in connection
         with the Company's request for authorization of the transactions
         contemplated hereby and the information contained in the certificates
         and the other documents delivered by the Company in connection
         therewith is true, correct and complete in all material respects.

                 (x)      Authorization of this Agreement.  This Agreement has
         been duly authorized, executed and delivered by the Company.

                 (xi)     Title to Property.  Substantially all of the
         permanent, fixed properties of the Company are owned in fee simple or
         are held under valid leases, in each case subject





                                       7
<PAGE>   8
         only to (A) the liens of current mortgages (including the lien of the
         Indenture), (B) "permitted encumbrances and liens" as defined in the
         Indenture and (C) such minor imperfections of titles and encumbrances,
         if any, that are not substantial in amount, do not materially detract
         from the value or marketability of the properties subject thereto and
         do not materially impair the Company's operations.

                 (xii)    Investment Company.  The Company is not an
         "investment company" or an entity "controlled" by an "investment
         company," as such terms are defined in the Investment Company Act of
         1940, as amended.

                 (xiii)   Environmental Compliance.  Except as set forth in the
         Prospectus, the Company (A) is in compliance with any and all
         applicable federal, state and local laws and regulations relating to
         the protection of human health and safety, the environment or
         hazardous or toxic substances or wastes, pollutants or contaminants
         ("Environmental Laws"), (B) has received all permits, licenses or
         other approvals required of it under applicable Environmental Laws to
         conduct its business and (C) is in compliance with all terms and
         conditions of any such permit, license or approval, except as to
         clauses (A), (B) and (C) where such noncompliance with Environmental
         Laws, failure to receive required permits, licenses or other approvals
         or failure to comply with the terms and conditions of such permits,
         licenses or approvals would not, singly or in the aggregate, have a
         material adverse effect on the Company.

         (b)     Additional Certifications.  Any certificate signed by any
director or officer of the Company and delivered to the Agents or to counsel
for the Agents in connection with an offering of Bonds or the sale of Bonds to
an Agent as principal shall be deemed a representation and warranty by the
Company to the Agents as to the matters covered thereby on the date of such
certificate and at each Representation Date subsequent thereto.

SECTION 3.         SOLICITATIONS AS AGENT; PURCHASES AS PRINCIPAL.

         (a)     Solicitations as Agent.  On the basis of the representations
and warranties herein contained, but subject to the terms and conditions herein
set forth, each Agent agrees, as an agent of the Company, to use its reasonable
efforts to solicit offers to purchase the Bonds upon the terms and conditions
set forth herein and in the Prospectus.





                                       8
<PAGE>   9
         The Company reserves the right, in its sole discretion, to suspend
solicitation of purchases of the Bonds through an Agent, as agent, commencing
at any time for any period of time or permanently.  Upon receipt of
instructions from the Company, such Agent will forthwith suspend solicitation
of purchases from the Company until such time as the Company has advised such
Agent that such solicitation may be resumed.

         The Company agrees to pay each Agent a commission, in the form of a
discount, equal to the applicable percentage of the principal amount of each
Bond sold by the Company as a result of a solicitation made by such Agent as
set forth in Schedule A hereto.  An Agent may reallow any portion of the
commission payable pursuant hereto to dealers or purchasers in connection with
the offer and sale of any Bonds.

         The purchase price, interest rate, maturity date, redemption
provisions and other terms of the Bonds shall be agreed upon by the Company and
the Agents and set forth in a pricing supplement to be prepared following each
acceptance by the Company of an offer for the purchase of Bonds (a "Pricing
Supplement").  Except as may be otherwise provided in such supplement to the
Prospectus, the Bonds will be issued in denominations of $100,000 or any larger
amount that is an integral multiple of $1,000.  All Bonds sold through an Agent
as agent will be sold at 100% of their principal amount unless otherwise agreed
to by the Company and such Agent.

         (b)     Purchases as Principal.  Each sale of Bonds to an Agent as
principal shall be made in accordance with the terms contained herein and
(unless the Company and such Agent shall otherwise agree) pursuant to a
separate agreement that will provide for the sale of such Bonds to, and the
purchase and reoffering thereof by, such Agent.  Each such separate agreement
(which may be an oral agreement) between such Agent and the Company is herein
referred to as a "Terms Agreement".  Unless the context otherwise requires,
each reference contained herein to "this Agreement" shall be deemed to include
any applicable Terms Agreement between the Company and the applicable Agent.
Each such Terms Agreement, whether oral or in writing, shall be with respect to
such information (as applicable) as is specified in Exhibit A hereto.  An
Agent's commitment to purchase Bonds as principal pursuant to any Terms
Agreement or otherwise shall be deemed to have been made on the basis of the
representations and warranties of the Company herein contained and shall be
subject to the terms and conditions herein set forth.  Each Terms Agreement
shall specify the principal amount of Bonds to be purchased by such Agent
pursuant thereto, the price to be paid to the Company for such Bonds (which, if
not so specified in a Terms Agreement, shall be at a discount equivalent to the
applicable commission set forth in Schedule A hereto), the time and place of
delivery of and payment for such Bonds, any provisions relating to rights of,
and default by purchasers acting together with such Agent in the reoffering of
the Bonds, and such other provisions (including further terms of the Bonds) as
may be





                                       9
<PAGE>   10
mutually agreed upon.  Each Agent may utilize a selling or dealer group in
connection with the resale of the Bonds purchased.  Such Terms Agreement shall
also specify the requirements for the officer's certificate, opinions of
counsel and comfort letter pursuant to Sections 7(b), 7(c) and 7(d) hereof.

         (c)     Administrative Procedures.  Administrative procedures with
respect to the sale of Bonds shall be agreed upon from time to time by the
Agents and the Company (the "Procedures").  The Agents and the Company agree to
perform the respective duties and obligations specifically provided to be
performed by them in the Procedures.

SECTION 4.         COVENANTS OF THE COMPANY.

         The Company covenants with each Agent as follows:

         (a)     Notice of Certain Events.  The Company will notify the Agents
immediately (i) of the effectiveness of any amendment to the Registration
Statement, (ii) of the transmittal to the SEC for filing of any supplement to
the Prospectus or any document to be filed pursuant to the 1934 Act that will
be incorporated by reference in the Prospectus, (iii) of the receipt of any
comments from the SEC with respect to the Registration Statement or the
Prospectus (including, in each case, any document incorporated by reference
therein), (iv) of any request by the SEC for any amendment to the Registration
Statement or any amendment or supplement to the Prospectus or for additional
information, and (v) of the issuance by the SEC of any stop order suspending
the effectiveness of the Registration Statement or the initiation of any
proceedings for that purpose.  The Company will make every reasonable effort to
prevent the issuance of any stop order and, if any stop order is issued, to
obtain the lifting thereof at the earliest possible moment.

         (b)     Notice of Certain Proposed Filings.  The Company will give the
Agents notice of its intention to file or prepare any additional registration
statement with respect to the registration of additional Bonds, any amendment
to the Registration Statement or any amendment or supplement to the Prospectus
(other than an amendment or supplement providing solely for a change in the
interest rates of Bonds), whether by the filing of documents pursuant to the
1934 Act, the 1933 Act or otherwise, and will furnish the Agents with copies of
any such amendment or supplement or other documents proposed to be filed or
prepared a reasonable time in advance of such proposed filing or preparation,
as the case may be, and will not file any such amendment or supplement or other
documents in a form to which the Agents or counsel for the Agents shall
reasonably object.

         (c)     Copies of the Registration Statement and the Prospectus.  The
Company will deliver to the Agents as many signed and conformed copies of the
Registration Statement (as originally filed) and of each amendment thereto
(including exhibits filed therewith or





                                       10
<PAGE>   11
incorporated by reference therein and documents incorporated by reference in
the Prospectus) as the Agents may reasonably request.  The Company will furnish
to the Agents as many copies of the Prospectus (as amended or supplemented) as
the Agents shall reasonably request so long as the Agents are required to
deliver a Prospectus in connection with sales or solicitations of offers to
purchase the Bonds.

         (d)     Preparation of Pricing Supplements. The Company will prepare,
with respect to any Bonds to be sold through or to any Agent pursuant to this
Agreement, a Pricing Supplement with respect to such Bonds in a form previously
approved by such Agent and will file such Pricing Supplement pursuant to Rule
424(b)(3) under the 1933 Act not later than the close of business of the SEC on
the fifth business day after the date on which such Pricing Supplement is first
used.

         (e)     Revisions of Prospectus -- Material Changes.  Except as
otherwise provided in subsection (1) of this Section, if at any time during the
term of this Agreement any event shall occur or condition exist as a result of
which it is necessary, in the reasonable opinion of counsel for the Agents or
counsel for the Company, to further amend or supplement the Prospectus in order
that the Prospectus will not include an untrue statement of a material fact or
omit to state any material fact necessary in order to make the statements
therein not misleading in the light of the circumstances existing at the time
the Prospectus is delivered to a purchaser, or if it shall be necessary, in the
reasonable opinion of either such counsel, to amend or supplement the
Registration Statement or the Prospectus in order to comply with the
requirements of the 1933 Act or the 1933 Act Regulations, immediate notice
shall be given, and confirmed in writing, to the Agents to cease the
solicitation of offers to purchase the Bonds in the Agents' capacity as agents
and to cease sales of any Bonds the Agents may then own as principal pursuant
to a Terms Agreement, and the Company will promptly prepare and file with the
SEC such amendment or supplement, whether by filing documents pursuant to the
1934 Act, the 1933 Act or otherwise, as may be necessary to correct such untrue
statement or omission or to make the Registration Statement and Prospectus
comply with such requirements.

         (f)     Prospectus Revisions -- Periodic Financial Information.
Except as otherwise provided in subsection (1) of this Section, on or prior to
the date on which there shall be released to the general public interim
financial statement information related to the Company with respect to each of
the first three quarters of any fiscal year or preliminary financial statement
information with respect to any fiscal year, the Company shall furnish such
information to the Agents, confirmed in writing, and shall cause the Prospectus
to be amended or supplemented to include or incorporate by reference financial
information with respect thereto and corresponding information for the
comparable period of the preceding fiscal year, as well as such other
information and





                                       11
<PAGE>   12
explanations as shall be necessary for an understanding thereof or as shall be
required by the 1933 Act or the 1933 Act Regulations.

         (g)     Prospectus Revisions -- Audited Financial Information.  Except
as otherwise provided in subsection (1) of this Section, on or prior to the
date on which there shall be released to the general public financial
information included in or derived from the audited financial statements of the
Company for the preceding fiscal year, the Company shall cause the Registration
Statement and the Prospectus to be amended, whether by the filing of documents
pursuant to the 1934 Act, the 1933 Act or otherwise, to include or incorporate
by reference such audited financial statements and the report or reports, and
consent or consents to such inclusion or incorporation by reference, of the
independent accountants with respect thereto, as well as such other information
and explanations as shall be necessary for an understanding of such financial
statements or as shall be required by the 1933 Act or the 1933 Act Regulations.

         (h)     Earnings Statements.  The Company will make generally
available to its security holders as soon as practicable, but not later than 90
days after the close of the period covered thereby, an earnings statement (in
form complying with the provisions of Rule 158 under the 1933 Act) covering
each twelve month period beginning, in each case, not later than the first day
of the Company's fiscal quarter next following the "effective date" (as defined
in such Rule 158) of the Registration Statement with respect to each sale of
Bonds.

         (i)     Blue Sky Qualifications.  The Company will endeavor, in
cooperation with the Agents, to qualify the Bonds for offering and sale under
the applicable securities laws of such states and other jurisdictions of the
United States as the Agents may designate, and will maintain such
qualifications in effect for as long as may be required for the distribution of
the Bonds; provided that the Company shall not be obligated to file any general
consent to service of process or to qualify as a foreign corporation in any
jurisdiction in which it is not so qualified.  The Company will file such
statements and reports as may be required by the laws of each jurisdiction in
which the Bonds have been qualified as above provided.  The Company will
promptly advise the Agents of the receipt by the Company of any notification
with respect to the suspension of the qualification of the Bonds for sale in
any such state or jurisdiction or the initiating or threatening of any
proceeding for such purpose.

         (j)     1934 Act Filings.  The Company, during the period when the
Prospectus is required to be delivered under the 1933 Act, will file promptly
all documents required to be filed with the SEC pursuant to Sections 13(a),
13(c), 14 or 15(d) of the 1934 Act.

         (k)     Stand-Off Agreement.  If required pursuant to the terms of a
Terms Agreement, between the date of any Terms Agreement and the Settlement
Date with respect to such Terms Agreement, the





                                       12
<PAGE>   13
Company will not, without the applicable Agent's prior consent, offer or sell,
or enter into any agreement to sell, any debt securities of the Company (other
than the Bonds that are to be sold pursuant to such Terms Agreement and
commercial paper in the ordinary course of business).

         (l)     Suspension of Certain Obligations.  The Company shall not be
required to comply with the provisions of subsections (e), (f) or (g) of this
Section during any period from the time (i) the Agents shall have suspended
solicitation of purchases of the Bonds in their capacity as agents pursuant to
a request from the Company and (ii) the Agents shall not then hold any Bonds as
principal purchased pursuant to a Terms Agreement, to the time the Company
shall determine that solicitation of purchases of the Bonds should be resumed
or shall subsequently enter into a new Terms Agreement with any or all of the
Agents.

         (m)     Condition to Agency Transactions.  Any person who has agreed
to purchase Bonds as the result of an offer to purchase solicited by an Agent
shall have the right to refuse to purchase and pay for such Bonds if, on the
related settlement date fixed pursuant to the Procedures, (i) there has been,
since the date on which such person agreed to purchase the Bonds (the "Trade
Date"), or since the respective date as of which information is given in the
Registration Statement, any material adverse change in the condition, financial
or otherwise, or in the earnings, business affairs or business prospects of the
Company whether or not arising in the ordinary course of business, or (ii)
there shall have occurred any outbreak or escalation of hostilities or other
national or international calamity or crisis the effect of which is such as to
make it, in the judgment of such person, impracticable or inadvisable to
purchase the Bonds, or (iii) trading in any securities of the Company or CIPSCO
Incorporated has been suspended by the SEC or a national securities exchange,
or if trading generally on either the American Stock Exchange or the New York
Stock Exchange shall have been suspended, or minimum or maximum prices for
trading have been fixed, or maximum ranges for prices for securities have been
required, by either of said exchanges or by order of the SEC or any other
governmental authority, or if a banking moratorium shall have been declared by
either federal or New York authorities, or (iv) the rating assigned by any
nationally recognized securities rating agency to any debt securities of the
Company as of the Trade Date shall have been lowered since that date or if any
such rating agency shall have publicly announced that it has under surveillance
or review, with possible negative implications, its rating of any debt
securities of the Company, or (v) any condition set forth in Section 5(d) shall
not have been satisfied.

SECTION 5.         CONDITIONS OF OBLIGATIONS.

         The obligations of each Agent to solicit offers to purchase the Bonds
as agent of the Company, the obligations of any purchasers of the Bonds sold
through each Agent as agent, and any





                                       13
<PAGE>   14
obligation of an Agent to purchase Bonds pursuant to a Terms Agreement or
otherwise will be subject to the accuracy of the representations and warranties
on the part of the Company herein and to the accuracy of the statements of the
Company's officers made in any certificate furnished pursuant to the provisions
hereof, to the performance and observance by the Company of all its covenants
and agreements herein contained and to the following additional conditions
precedent:

         (a)     Legal Opinions.  On the date hereof, the Agents shall have
received the following legal opinions, dated as of the date hereof and in form
and substance satisfactory to the Agents:

                 (1)      Opinion of Jones, Day, Reavis & Pogue.  The opinion
         of Jones, Day, Reavis & Pogue, counsel to the Company, to the effect
         that:

                 (i)      The Company is a duly organized and validly existing
         corporation and is in good standing under the laws of the State of
         Illinois with corporate power and authority to own and operate the
         properties now owned by it and to conduct the business now being
         conducted by it as described in the Prospectus.

                 (ii)     The Indenture has been duly authorized, executed and
         delivered by the Company and constitutes a valid and legally binding
         obligation of the Company enforceable in accordance with its terms,
         and the Indenture has been qualified under the 1939 Act.

                (iii)    The Bonds have been duly authorized by all necessary
         corporate action on the part of the Company, and when duly executed,
         authenticated, issued and delivered pursuant to this Agreement or any
         applicable Terms Agreement and the Indenture, upon receipt by the
         Company of the consideration therefor, will constitute legal, valid
         and binding obligations of the Company enforceable in accordance with
         their terms and the terms of the Indenture, entitled to the security
         and benefits of the Indenture and secured equally and ratably with all
         other bonds issued under the Indenture except as to differences
         between series permitted by the Indenture and not affecting the rank
         of the lien thereof.

                 (iv)     This Agreement and any applicable Terms Agreement
         have been duly authorized, executed and delivered by the Company and,
         assuming that each such agreement has been duly and validly
         authorized, executed and delivered by the Agents, each such agreement
         constitutes a valid and legally binding obligation of the Company
         enforceable in accordance with its terms, except as enforceability of
         the indemnification or contribution provisions hereof may be limited
         by applicable securities laws.





                                       14
<PAGE>   15
                 (v)      An order or orders have been entered by the ICC
         permitting the issuance and sale of the Bonds as contemplated by this
         Agreement or any applicable Terms Agreement and, to the best knowledge
         of such counsel, are still in full force and effect, and no further
         authorization or consent of any public body or board is legally
         required for the issuance and sale by the Company of the Bonds as
         contemplated by this Agreement, or any applicable Terms Agreement
         except as may be required by state securities laws.  The approval of
         the SEC under the Public Utility Holding Company Act of 1935 is not
         required in connection with the issuance and sale of the Bonds by the
         Company.

                 (vi)     The consummation of the transactions contemplated in
         this Agreement or any applicable Terms Agreement and the fulfillment
         of the terms of this Agreement or any applicable Terms Agreement and
         compliance by the Company with all the terms and provisions of the
         Indenture will not result in a breach of any of the terms or
         provisions of, or constitute a default under, any indenture, mortgage,
         deed of trust or other agreement or instrument known to such counsel
         to which the Company is a party or by which it is bound, or the
         Restated and Amended Articles of Incorporation, as amended, or by-laws
         of the Company or, to the best of such counsel's knowledge, any order,
         rule or regulation applicable to the Company of any court or of any
         federal or state regulatory body or administrative agency or other
         governmental body having jurisdiction over the Company or its
         property.

                 (vii)    The Company is not an "investment company" or an
         entity "controlled" by an "investment company" as such terms are
         defined in the Investment Company Act of 1940, as amended.

                 Such opinion also shall state that such counsel have
         participated in the preparation of the Registration Statement and the
         Prospectus; that from time to time they have participated in
         conferences with representatives of the Company, its other counsel,
         its independent accountants who examined certain of the financial
         statements of the Company included or incorporated in the Registration
         Statement and the Prospectus, and representatives and counsel for the
         Agents concerning the information contained in the Registration
         Statement and the Prospectus and the proposed responses to various
         items in Form S-3, and that they have participated in prior financings
         of the Company.  Such opinion shall state that based thereupon such
         counsel are of the opinion that the Registration Statement and the
         Prospectus, except for the operating statistics, financial statements
         and schedules and other financial and statistical data contained or
         incorporated by reference in the Registration Statement and the
         Prospectus, except for the information referred to under the caption
         "Legal Opinions" as having been included in the Prospectus on the
         authority of Sorling, Northrup, Hanna, Cullen and Cochran,





                                       15
<PAGE>   16
         Ltd., as experts and except as to the Trustees' Statement of
         Eligibility on Forms T-1 and T-2, as to which such counsel need
         express no opinion, at the time the Registration Statement became
         effective under the Act, complied as to form in all material respects
         with the 1933 Act and the 1933 Act Regulations and the 1939 Act and
         the rules and regulations of the SEC thereunder; and that such counsel
         do not know of any legal or governmental proceedings required to be
         described in the Prospectus that are not described as required, or of
         any contracts or other documents of a character required to be
         described in the Registration Statement or the Prospectus or to be
         filed as exhibits to the Registration Statement that are not described
         and filed or incorporated therein by reference as permitted by the
         rules and regulations under the 1939 Act as required.  For purposes of
         this paragraph, such counsel may assume the adequacy of the written
         information supplied by the Agents for use in the Registration
         Statement or the Prospectus.

                 Such opinion also shall state that the statements in the
         Prospectus which are stated therein to have been made on authority of
         such counsel have been reviewed by such counsel and, as to matters of
         law and legal conclusions, are correct; and that the statements
         contained in the Prospectus under the captions "Description of First
         Mortgage Bonds, Medium-Term Note Series" and "Description of Debt
         Securities", insofar as they purport to summarize the provisions of
         the documents referred to therein, present fair summaries of such
         provisions.

                 Such opinion also shall state that the Registration Statement
         has become effective under the 1933 Act, any prospectus supplement to
         the Prospectus required to be filed pursuant to Rule 424 under the
         1933 Act has been filed with the SEC, and to the best knowledge of
         such counsel no stop order suspending the effectiveness of the
         Registration Statement has been issued and no proceedings for that
         purpose are pending or threatened by the SEC.

                 Such opinion also shall state that while such counsel have not
         independently verified and are not passing upon, and do not assume any
         responsibility for, the accuracy, completeness, or fairness (except as
         set forth in the second preceding paragraph above) of the information
         contained in the Registration Statement and the Prospectus, including
         any document incorporated or deemed to be incorporated therein by
         reference, based upon the participation and discussions described
         above, however, no facts have come to the attention of such counsel
         that cause them to believe that the Registration Statement (except for
         the operating statistics, financial statements, financial schedules
         and other financial and statistical data contained or incorporated by
         reference in the Registration Statement and the Prospectus, except for
         the information referred to under the caption "Legal Opinions" as 





                                       16
<PAGE>   17
         having been included in the Prospectus on the authority of
         Sorling, Northrup, Hanna, Cullen and Cochran, Ltd., as experts, and
         except for the Trustees' Statements of Eligibility on Form T-1 and
         T-2, as to which such counsel need express no opinion), at the time it
         became effective, and if an amendment to the Registration Statement or
         an Annual Report on Form 10-K has been filed by the Company with the
         SEC subsequent to the effectiveness of the Registration Statement,
         then at the time such amendment became effective or at the time of the
         most recent such filing, and at the date hereof, or (if such opinion
         is being delivered in connection with a Terms Agreement pursuant to
         Section 3(b) hereof) at the date of any Terms Agreement and at the
         Settlement Date with respect thereto, as the case may be, contains or
         contained any untrue statement of a material fact or omits or omitted
         to state a material fact required to be stated therein or necessary in
         order to make the statements therein not misleading, or that the
         Prospectus (with the foregoing exceptions) as amended or supplemented
         as of the date of this Agreement, or (if such opinion is being
         delivered in connection with a Terms Agreement pursuant to Section
         3(b) hereof) at the date of any Terms Agreement and at the Settlement
         Date with respect thereto, as the case may be, contains or contained
         any untrue statement of a material fact or omits or omitted to state a
         material fact required to be stated therein or necessary in order to
         make the statements therein, in the light of the circumstances under
         which they were made, not misleading.

                 For purposes of such opinion, such counsel need express no
         opinion with respect to the requirements of any state securities or
         "blue sky" laws.  Furthermore, such opinion in paragraph (iii) may
         assume (but express no opinion thereon) that the Company has title to
         the properties purported to be owned by it and which are, by the terms
         of the Indenture, subject to the lien of the Indenture and that the
         liens or security interests created, or intended or purported to be
         created, by the Indenture have been perfected and are prior to all
         other liens except for "permitted encumbrances" and "prepaid liens" as
         defined in the Indenture.

                 With respect to the opinions expressed in paragraphs (ii),
         (iii) and (iv) above, (a) such counsel need express no opinion as to
         the availability of specific performance or other equitable remedies,
         (b) such opinions shall be subject to the effect of bankruptcy,
         insolvency, reorganization, moratorium and other similar laws
         affecting creditors' rights from time to time in effect, (c) federal
         bankruptcy laws may affect the validity of the lien of the Indenture
         with respect to proceeds, products, rents, issues or profits of the
         property subject to such lien realized, and additional property
         acquired, within 90 days prior to and after commencement of a case
         under such laws and (d) enforcement of the provisions of the Indenture
         may be limited by the laws of





                                       17
<PAGE>   18
         Illinois affecting the remedies for the enforcement of the security
         provided for in the Indenture.

                 In rendering the opinion expressed in paragraph (i) above,
         such counsel may state that they have reviewed and relied on the
         opinion of Sorling, Northrup, Hanna, Cullen and Cochran, Ltd. as to
         the validity and sufficiency of the franchises, licenses and permits
         of the Company, and shall state that they and the Agents are justified
         in relying on such opinion.

                 (2)      Opinion of Sorling, Northrup, Hanna, Cullen &
         Cochran, Ltd.  The opinion of Sorling, Northrup, Hanna, Cullen and
         Cochran, Ltd., counsel to the Company,  covering the matters set forth
         in subsection 5(a)(1)(i) of this Section and such other matters
         incident to the transactions contemplated hereby as the Agents may
         reasonably request, and also to the effect that:

                 (i)      The statements in the Prospectus which are stated
         therein to have been made on the authority of such counsel have been
         reviewed by such counsel and, as to matters of law and legal
         conclusions, are correct.

                 (ii)     The Company has good and sufficient title to all or
         substantially all the permanent fixed properties and the material
         franchises, permits and licenses now owned by it, including those
         described or referred to in the Prospectus, except as may be otherwise
         indicated therein, subject to the lien of the Indenture and to
         permitted encumbrances and liens, as defined in the Indenture, and no
         notice has been given to the Company by any governmental authority of
         any proceeding to condemn, purchase or otherwise acquire any material
         properties of the Company and, so far as such counsel knows, no such
         proceeding is contemplated.

                 (iii)    The Indenture has been duly filed for recording and
         recorded in each county in Illinois in which any permanent fixed
         property described in and conveyed by the Indenture and now owned by
         the Company is located, and constitutes a legally valid and direct
         enforceable first mortgage lien (except as federal bankruptcy laws may
         affect the validity of the lien of the Indenture with respect to
         proceeds, products, rents, issues or profits of the property subject
         to such lien realized and additional property acquired within 90 days
         prior to and after the commencement of a case under such laws and
         except as enforcement of provisions thereof may be limited by the laws
         of the State of Illinois affecting the remedies for the enforcement of
         the security provided for in the Indenture, which laws do not, in the
         opinion of such counsel, make such remedies inadequate for realization
         of the benefits of such security, or limited by bankruptcy or
         insolvency laws or other applicable laws affecting the enforcement of
         creditors' rights generally or by general principles of equity) upon





                                       18
<PAGE>   19
         substantially all of the Company's fixed properties and franchises
         used or useful in its public utility business free from all prior or
         equal ranking liens, charges or encumbrances, subject only to
         permitted encumbrances and liens, as defined in the Indenture, and to
         the provisions contained in the Indenture for the release, or
         substitution and release, of property from the lien thereof.

                 (iv)     Substantially all physical properties and franchises
         used or useful in the Company's public utility businesses (other than
         those of the character not subject to the lien of the Indenture) and
         now owned by the Company are subject to the lien of the Indenture,
         subject only to permitted encumbrances and liens, as defined in the
         Indenture, and to the provisions contained in the Indenture for the
         release, or substitution and release, of property from the lien
         thereof.  All physical properties and franchises used or useful in the
         Company's public utility business (other than those of the character
         not subject to the lien of the Indenture) hereafter acquired by the
         Company and situated in counties in Illinois in which the Indenture
         shall be of record will, upon such acquisition, become subject to the
         lien of the Indenture, subject, however, to such encumbrances and
         liens as are permitted thereby.

                 (v)      Except as otherwise set forth in the Prospectus, the
         Company has such valid franchises, certificates of convenience and
         necessity, operating rights, licenses, permits, consents, approvals,
         authorizations and/or orders of governmental bodies, political
         subdivisions or regulatory authorities then obtainable, free from
         unduly burdensome restrictions, as are necessary for the acquisition,
         construction, ownership, maintenance and operation of the properties
         now owned by it and the conduct of the business now carried on by it
         as described in the Registration Statement and Prospectus, with minor
         exceptions which, in the opinion of such counsel, do not interfere
         with the practical operation of the Company's business, and, to the
         best of the knowledge of such counsel, the Company is not in default
         or violation thereof in any material respect and is carrying on its
         business in substantial compliance therewith and with all applicable
         federal, state and other laws and regulations which are material to
         the Company.

                 In rendering the opinions expressed in paragraphs (ii) and
         (iii) of this Section, counsel may rely upon prior opinions furnished
         by Nafziger & Otten as to matters of titles to properties acquired by
         the Company prior to May 14, 1980 and as to filings or recordings of
         the Indenture prior to May 14, 1980, provided that such opinion shall
         state that such counsel believe that they and the Agents are justified
         in relying on such prior opinions of Nafziger & Otten.

                 (3)      Opinion of Counsel to the Agents.  The opinion of
          Gardner, Carton & Douglas, counsel to the Agents, covering





                                       19
<PAGE>   20
         such matters with respect to the incorporation of the Company, the
         validity of Bonds, the Registration Statement, the Prospectus and
         other related matters as the Agents may reasonably request, and
         Gardner, Carton & Douglas shall have received such papers and
         information as they may reasonably request to enable them to pass upon
         such matters.  In rendering their opinion, Gardner, Carton & Douglas
         may rely upon the opinion of Jones, Day, Reavis & Pogue referred to
         above as to all matters enumerated in Section 5(a)(i)(v) hereof,
         provided that such opinion shall state that said counsel believe that
         they and the Agents are justified in relying on the opinion of Jones,
         Day, Reavis & Pogue.

                 (4)      In rendering the opinions contemplated by subsections
         5(a)(1), 5(a)(2) and 5(a)(3) of this Section, counsel may rely upon
         certificates of state officials as to the Company's good standing and
         upon certificates of officers of the Company as to matters of fact
         relevant to such opinions.  In giving such opinions, counsel may
         assume (i) that the signatures on all documents examined by them are
         genuine, (ii) the adequacy of the written information supplied by the
         Agents for use in the Registration Statement or the Prospectus and
         (iii) if the foregoing opinion of counsel is to be delivered on any
         date other than a Settlement Date, the conditions set forth in Section
         4(d) hereof have been satisfied.

         (b)     Officer's Certificate.  At the date hereof the Agents shall
have received a certificate of the President, the Vice President or the
Treasurer of the Company and dated as of the date hereof, to the effect that to
the best of his knowledge based on reasonable investigation:

                 (1)      The representations and warranties of the Company in
         this Agreement are true and correct with the same force and effect as
         though expressly made at and as of the date of such certificate, and
         the Company has complied with all the agreements and satisfied all the
         conditions on its part to be performed or satisfied at or prior to the
         date of such certificate.

                 (2)      No stop order suspending the effectiveness of the
         Registration Statement has been issued, and no proceeding for that
         purpose has been instituted or is pending or is threatened by the SEC,
         under the 1933 Act.

                 (3)      Subsequent to the respective dates as of which
         information is given in the Registration Statement and Prospectus,
         except as contemplated in the Prospectus and except for payment of
         interest on the outstanding debt securities of the Company or the
         payment or declaration of or provision for distributions on the
         outstanding capital stock of the Company, (i) the Company has not
         sustained any loss or interference material to the Company with its
         business from fire, explosion, flood or other calamity, whether or not





                                       20
<PAGE>   21
         covered by insurance, or from any labor dispute or court or
         governmental action, order or decree, (ii) the Company has not
         incurred any material liabilities or obligations, direct or
         contingent, and has not entered into any material transaction not in
         the ordinary course of business, (iii) there has not been any material
         change in the capital stock or long-term debt of the Company or any
         material adverse change in the condition (financial or other) or the
         Company, and (iv) no material legal or governmental proceeding,
         domestic or foreign, affecting the Company or the transactions
         contemplated by this Agreement has been instituted or threatened.

                 (4)      The ICC Order approving the issuance and sale of the
         Bonds on the terms and in the manner contemplated by this Agreement
         and the Prospectus remains in full force and effect.

         (c)     Comfort Letter.  On the date hereof, the Agents shall have
received a letter from Arthur Andersen LLP dated as of the date hereof and in
form and substance satisfactory to the Agents, to the effect that:

                 (i)      They are independent public accountants with respect
         to the Company within the meaning of the 1933 Act and the 1933 Act
         Regulations.

                 (ii)     In their opinion, the financial statements and
         supporting schedules of the Company examined by them and included or
         incorporated by reference in the Registration Statement comply as to
         form in all material respects with the applicable accounting
         requirements of the 1933 Act and the 1933 Act Regulations with respect
         to registration statements on Form S-3 and the 1934 Act and the 1934
         Act Regulations.

                 (iii)    They have performed specified procedures, not
         constituting an audit, including a reading of the latest available
         interim financial statements of the Company, a reading of the minute
         books of the Company since the end of the most recent fiscal year with
         respect to which an audit report has been issued, inquiries of and
         discussions with certain officials of the Company responsible for
         financial and accounting matters with respect to the unaudited
         financial statements included in the Registration Statement and
         Prospectus and the latest available interim unaudited financial
         statements of the Company, and such other inquiries and procedures as
         may be specified in such letter, and on the basis of such inquiries
         and procedures nothing came to their attention that caused them to
         believe that:  (A) the unaudited financial statements of the Company
         included in the Registration Statement and Prospectus do not comply as
         to form in all material respects with the applicable accounting
         requirements of the 1934 Act and the 1934 Act Regulations or were not
         fairly presented in conformity with generally accepted accounting
         principles in the United States applied on a basis substantially
         consistent with that of the audited





                                       21
<PAGE>   22
         financial statements included therein, or (B) at a specified date not
         more than five days prior to the date of such letter, there was any
         change in the capital stock or any increase in long-term debt of the
         Company or any decrease in the net assets of the Company, in each case
         as compared with the amounts shown on the most recent balance sheet of
         the Company included in the Registration Statement and Prospectus or,
         during the period from the date of such balance sheet to a specified
         date not more than five days prior to the date of such letter, there
         were any decreases, as compared with the corresponding period in the
         preceding year, in revenues or net income of the Company, except in
         each such case as set forth in or contemplated by the Registration
         Statement and Prospectus or except for such exceptions enumerated in
         such letter as shall have been agreed to by the Agents and the
         Company.

                 (iv)     In addition to the examination referred to in their
         report included or incorporated by reference in the Registration
         Statement and the Prospectus, and the limited procedures referred to
         in clause (iii) above, they have carried out certain other specified
         procedures, not constituting an audit, with respect to certain
         amounts, percentages and financial information which are included or
         incorporated by reference in the Registration Statement and Prospectus
         and which are specified by the Agents, and have found such amounts,
         percentages and financial information to be in agreement with the
         relevant accounting, financial and other records of the Company
         identified in such letter.

         (d)     Indenture Documents.  On or prior to a Settlement Date and on
or prior to each other date that Bonds are to be delivered by the Company for
sale hereunder, all certificates, opinions and other documents required to be
delivered under the Indenture to the Trustee in connection with such Bonds
shall have been delivered and the Company shall have furnished to the Agents a
certificate to such effect in such form and executed by such officers of the
Company as shall be satisfactory to such Agents.

         (e)     Other Documents.  On the date hereof and on each Settlement
Date with respect to any applicable Terms Agreement, counsel to the Agents
shall have been furnished with such documents and opinions as such counsel may
reasonably require for the purpose of enabling such counsel to pass upon the
issuance and sale of Bonds as herein contemplated and related proceedings, or
in order to evidence the accuracy and completeness of any of the
representations and warranties, or the fulfillment of any of the conditions,
herein contained; and all proceedings taken by the Company in connection with
the issuance and sale of Bonds as herein contemplated shall be satisfactory in
form and substance to the Agents and to counsel to the Agents.

         If any condition specified in this Section 5 shall not have been
fulfilled when and as required to be fulfilled, this Agreement





                                       22
<PAGE>   23
(or, at the option of the applicable Agent, any applicable Terms Agreement) may
be terminated by the Agents by notice to the Company at any time and any such
termination shall be without liability of any party to any other party, except
that the covenant regarding provision of an earnings statement set forth in
Section 4(h) hereof, the provisions concerning payment of expenses under
Section 9 hereof, the indemnity and contribution agreement set forth in Section
8 hereof, the provisions concerning the representations, warranties and
agreements to survive delivery of Section 10 hereof and the provisions set
forth under "Parties" of Section 14 hereof shall remain in effect.

SECTION 6.         DELIVERY OF AND PAYMENT FOR BONDS SOLD THROUGH THE AGENTS.

         Delivery of Bonds sold through an Agent as agent shall be made by the
Company to such Agent for the account of any purchaser only against payment
therefor in immediately available funds.  If a purchaser shall fail either to
accept delivery of or to make payment for a Bond on the date fixed for
settlement, the applicable Agent shall promptly notify the Company and deliver
the Bond to the Company, and, if such Agent has theretofore paid the Company
for such Bond, the Company will promptly return such funds to such Agent.  If
such failure occurred for any reason other than default by such Agent in the
performance of its obligations hereunder, the Company will reimburse such Agent
on an equitable basis for its loss of the use of the funds for the period such
funds were credited to the Company's account.

SECTION 7.         ADDITIONAL COVENANTS OF THE COMPANY.

         The Company covenants and agrees with the Agents that:

         (a)     Reaffirmation of Representations and Warranties.  Each
acceptance by the Company of an offer for the purchase of Bonds, and each
delivery of Bonds to the applicable Agent pursuant to a Terms Agreement, shall
be deemed to be an affirmation that the representations and warranties of the
Company contained in this Agreement and in any certificate theretofore
delivered to the Agents pursuant hereto are true and correct at the time of
such acceptance or sale, as the case may be, and an undertaking that such
representations and warranties will be true and correct at the time of delivery
to the purchaser or its agent, or to the Agents, of the Bond or Bonds relating
to such acceptance or sale, as the case may be, as though made at and as of
each such time (and it is understood that such representations and warranties
shall relate to the Registration Statement and Prospectus as amended and
supplemented to each such time).

         (b)     Subsequent Delivery of Certificates.  Each time that the
Registration Statement or the Prospectus shall be amended or supplemented
(other than by an amendment or supplement providing solely for a change in the
interest rates of Bonds or similar changes, and, unless the Agents shall
otherwise specify, other than





                                       23
<PAGE>   24
by an amendment or supplement that relates exclusively to an offering of debt
securities other than the Bonds or preferred stock) or there is filed with the
SEC any document incorporated by reference into the Prospectus (other than any
Current Report on Form 8-K relating exclusively to the issuance of debt
securities or preferred stock under the Registration Statement, unless the
Agents shall otherwise specify), the Company shall furnish or cause to be
furnished to the Agents forthwith a certificate dated the date of filing with
the SEC of such supplement or document, or the date of effectiveness of such
amendment, as the case may be, in form satisfactory to the Agents to the effect
that the statements contained in the certificate referred to in Section 5(b)
hereof that was last furnished to the Agents are true and correct at the time
of such amendment, supplement, or filing, as the case may be, as though made at
and as of such time (except that such statements shall be deemed to relate to
the Registration Statement and the Prospectus as amended and supplemented to
such time) or, in lieu of such certificate, a certificate of the same tenor as
the certificate referred to in said Section 5(b), modified as necessary to
relate to the Registration Statement and the Prospectus as amended and
supplemented to the time of delivery of such certificate.  If the Company sells
Bonds to an Agent pursuant to a Terms Agreement and if required by such Terms
Agreement, the Company shall furnish or cause to be furnished to the Agents a
certificate dated the Settlement Date for such sale stating that, except as set
forth on contemplated in the Prospectus as of the date of such Terms Agreement,
the statements in clauses (i), (ii), (iii) and (iv) of Section 5(b) hereof are
true and correct.

         (c)     Subsequent Delivery of Legal Opinions.  Each time that the
Registration Statement or the Prospectus shall be amended or supplemented
(other than by an amendment or supplement providing solely for a change in the
interest rates of the Bonds or similar changes or solely for the inclusion of
additional financial information, and, unless the Agents shall otherwise
specify, other than by an amendment or supplement that relates exclusively to
an offering of debt securities other than the Bonds or preferred stock) or
there is filed with the SEC any document incorporated by reference into the
Prospectus (other than any Current Report on Form 8-K or Quarterly Report on
Form 10-Q, unless the Agent shall otherwise specify), or (if required pursuant
to the terms of a Terms Agreement) the Company sells Bonds to an Agent pursuant
to a Terms Agreement, the Company shall furnish or cause to be furnished
forthwith to the Agents and to counsel to the Agents the written opinions of
Jones, Day, Reavis & Pogue and Sorling, Northrup, Hanna, Cullen and Cochran,
Ltd., counsel to the Company, or other counsel satisfactory to the Agents dated
the date of filing with the SEC of such supplement or document, the date of
effectiveness of such amendment, or the date of such sale, as the case may be,
in form and substance satisfactory to the Agents, of the same tenor as the
opinions referred to in Sections 5(a)(1) and 5(a)(2) hereof, but modified, as
necessary, to relate to the Registration Statement and the Prospectus as
amended and supplemented to the time of delivery of such opinion; or, in lieu
of such opinions, counsel





                                       24
<PAGE>   25
last furnishing each such opinion to the Agents shall furnish the Agents with a
letter to the effect that the Agents may rely on such last opinion to the same
extent as though it was dated the date of such letter authorizing reliance
(except that statements in such last opinion shall be deemed to relate to the
Registration Statement and the Prospectus as amended and supplemented to the
time of delivery of such letter authorizing reliance).

         (d)     Subsequent Delivery of Comfort Letters.  Each time that the
Registration Statement or the Prospectus shall be amended or supplemented to
include additional financial information or there is filed with the SEC any
document incorporated by reference into the Prospectus that contains additional
financial information or (if required pursuant to the terms of a Terms
Agreement) the Company sells Bonds to an Agent pursuant to a Terms Agreement,
the Company shall cause Arthur Andersen LLP forthwith to furnish the Agents a
letter, dated the date of filing such supplement or document with the SEC or
the date of effectiveness of such amendment, or the date of such sale, as the
case may be, in form satisfactory to the Agents, of the same tenor as the
portions of the letter referred to in clauses (i) and (ii) of Section 5(c)
hereof but modified to relate to the Registration Statement and Prospectus, as
amended and supplemented to the date of such letter, and of the same general
tenor as the portions of the letter referred to in clauses (iii) and (iv) of
said Section 5(c) with such changes as may be necessary to reflect changes in
the financial statements and other information derived from the accounting
records of the Company; provided that if the Registration Statement or the
Prospectus is amended or supplemented solely to include financial information
as of and for a fiscal quarter, Arthur Andersen LLP may limit the scope of
such letter to the unaudited financial statements included in such amendment or
supplement unless any other information included therein of an accounting,
financial or statistical nature is of such a nature that, in the reasonable
judgment of the Agents, such letter should cover such other information.





                                       25
<PAGE>   26
SECTION 8.         INDEMNIFICATION AND CONTRIBUTION.

         (a)     The Company agrees to indemnify and hold harmless each Agent
and each person, if any, who controls such Agent within the meaning of either
Section 15 of the 1933 Act or Section 20 of the 1934 Act, from and against any
and all losses, claims, damages and liabilities (including, without limitation,
any legal or other expenses reasonably incurred by any Agent or any such
controlling person in connection with defending or investigating any such
action or claim) caused by any untrue statement or alleged untrue statement of
a material fact contained in the Registration Statement or any amendment
thereof, or the Prospectus (as amended or supplemented if the Company shall
have furnished any amendments or supplements thereto), or caused by any
omission or alleged omission to state therein a material fact required to be
stated therein or necessary to make the statements therein not misleading,
except insofar as such losses, claims, damages or liabilities are caused by (i)
any such untrue statement or omission or alleged untrue statement or omission
based upon information relating to any Agent furnished to the Company in
writing by such Agent expressly for use therein or (ii) statements in or
omissions from that part of the Registration Statement which shall constitute
the Trustees' Statements of Eligibility on Forms T-1 and T-2.

         (b)     Each Agent agrees, severally and not jointly, to indemnify and
hold harmless the Company, its directors, its officers who sign the
Registration Statement and each person, if any, who controls the Company within
the meaning of either Section 15 of the 1933 Act or Section 20 of the 1934 Act
to the same extent as the foregoing indemnity from the Company to such Agent,
but only with reference to information relating to such Agent furnished to the
Company in writing by such Agent expressly for use in the Registration
Statement, the Prospectus or any amendments or supplements thereto.

         (c)     If any proceeding (including any governmental investigation)
shall be instituted involving any person in respect of which indemnity may be
sought pursuant to either of the two preceding paragraphs, such person (the
"indemnified party") shall promptly notify the person against whom such
indemnity may be sought (the "indemnifying party") in writing and the
indemnifying party, upon request of the indemnified party, shall retain counsel
reasonably satisfactory to the indemnified party to represent the indemnified
party and any others the indemnifying party may designate in such proceeding
and shall pay the fees and disbursements of such counsel related to such
proceeding.  In any such proceeding, any indemnified party shall have the right
to retain its own counsel, but the fees and expenses of such counsel shall be
at the expense of such indemnified party unless (i) the indemnifying party and
the indemnified party shall have mutually agreed to the retention of such
counsel or (ii) the named parties to any such proceeding (including any
impleaded parties) include both the indemnifying party and the indemnified
party and representation of both parties by the same counsel would be





                                       26
<PAGE>   27
inappropriate due to actual or potential differing interests between them.  It
is understood that the indemnifying party shall not, in respect to the legal
expenses of any indemnified party in connection with any proceeding or related
proceedings in the same jurisdiction, be liable for the fees and expenses of
more than one separate firm (in addition to any local counsel) for all such
indemnified parties and that all such fees and expenses shall be reimbursed as
they are incurred.  Such firm shall be designated in writing by the Agents, in
the case of parties indemnified pursuant to paragraph (b) of this Section, and
by the Company, in the case of parties indemnified pursuant to paragraph (a) of
this Section.  The indemnifying party shall not be liable for any settlement of
any proceeding effected without its written consent, but if settled with such
consent or if there be a final judgment for the plaintiff, the indemnifying
party agrees to indemnify the indemnified party from and against any loss or
liability by reason of such settlement or judgment.  Notwithstanding the
foregoing sentence, if at any time an indemnified party shall have requested an
indemnifying party to reimburse the indemnified party for fees and expenses of
counsel as contemplated by the second and third sentences of this paragraph,
the indemnifying party agrees that it shall be liable for any settlement of any
proceeding effected without its written consent if (i) such settlement is
entered into more than 30 days after receipt by such indemnifying party of the
aforesaid request and (ii) such indemnifying party shall not have reimbursed
the indemnified party in accordance with such request prior to the date of such
settlement.  No indemnifying party shall, without the prior written consent of
the indemnified party, effect any settlement of any pending or threatened
proceeding in respect of which any indemnified party is or could have been a
party and indemnity could have been sought hereunder by such indemnified party,
unless such settlement includes an unconditional release of such indemnified
party from all liability on claims that are the subject matter of such
proceeding.

         (d)     If the indemnification provided for in paragraph (a) or (b) of
this Section 8 is unavailable to an indemnified party or insufficient in
respect of any losses, claims, damages or liabilities referred to therein, then
each indemnifying party under such paragraph, in lieu of indemnifying such
indemnified party thereunder, shall contribute to the amount paid or payable by
such indemnified party as a result of such losses, claims, damages or
liabilities (i) in such proportion as is appropriate to reflect the relative
benefits received by the Company on the one hand and the Agents on the other
hand from the offering of the Bonds or (ii) if the allocation provided by
clause (i) above is not permitted by applicable law, in such proportion as is
appropriate to reflect not only the relative benefits referred to in clause (i)
above but also the relative fault of the Company on the one hand and of the
Agents on the other hand in connection with the statements or omissions that
resulted in such losses, claims, damages or liabilities, as well as any other
relevant equitable considerations.  The relative benefits received by the
Company on the one hand and each Agent on the other hand in connection with the
offering of the Bonds shall





                                       27
<PAGE>   28
be deemed to be in the same respective proportions as the net proceeds from the
offering of the Bonds (before deducting expenses) received by the Company and
the total underwriting discounts and commissions received by such Agent to the
date of such liability bears to the total sales price from the sale of the
Bonds sold to or through such Agent to the date of such liability.  The
relative fault of the Company on the one hand and of the Agents on the other
hand shall be determined by reference to, among other things, whether the
untrue or alleged untrue statement of a material fact or the omission or
alleged omission to state a material fact relates to information supplied by
the Company or by the Agents and the parties' relative intent, knowledge,
access to information and opportunity to correct or prevent such statement or
omission.

         (e)     The Company and the Agents agree that it would not be just or
equitable if contribution pursuant to this Section 8 were determined by pro
rata allocation (even if the Agents were treated as one entity for such
purpose) or by any other method of allocation that does not take account of the
equitable considerations referred to in paragraph (d) of this Section.  The
amount paid or payable by an indemnified party as a result of the losses,
claims, damages and liabilities referred to in the immediately preceding
paragraph shall be deemed to include, subject to the limitations set forth
above, any legal or other expenses reasonably incurred by such indemnified
party in connection with investigating or defending any such action or claim.
Notwithstanding the provisions of this Section 8, no Agent shall be required to
contribute any amount in excess of the amount by which the total sales price of
the Bonds sold to or through such Agent exceeds the amount of any damages that
such Agent has otherwise been required to pay by reason of such untrue or
alleged untrue statement or omission or alleged omission.  No person guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the 1933
Act) shall be entitled to contribution from any person who was not guilty of
such fraudulent misrepresentation.  The remedies provided for in this Section 8
are not exclusive and shall not limit any rights or remedies which may
otherwise be available to any indemnified party at law or in equity.

SECTION 9.       PAYMENT OF EXPENSES.

The Company will pay all expenses incident to the performance of its
obligations under this Agreement, including:

         (f)     The preparation and filing of the Registration Statement and
all amendments thereto and the Prospectus and any amendments or supplements
thereto;

         (g)     The preparation, filing and reproduction of this Agreement;

         (h)     The preparation, printing, issuance and delivery of the Bonds,
including any fees and expenses relating to the use of book-entry bonds;





                                       28
<PAGE>   29
         (i)     The fees and disbursements of the Company's accountants and
counsel, of the Trustee and its counsel,

         (j)     The reasonable fees and disbursements of counsel to the Agents
incurred from time to time in connection with the transactions contemplated
hereby;

         (k)     The qualification of the Bonds under state securities laws in
accordance with the provisions of Section 4(i) hereof, including filing fees
and the reasonable fees and disbursements of counsel for the Agents in
connection therewith and in connection with the preparation of any Blue Sky
Memorandum and any Legal Investment Survey;

         (l)     The printing and delivery to the Agents in quantities as
hereinabove stated of copies of the Registration Statement and any amendments
thereto, and of the Prospectus and any amendments or supplements thereto, and
the delivery by the Agents of the Prospectus and any amendments or supplements
thereto in connection with solicitations or confirmations of sales of the
Bonds;

         (m)     The preparation, printing, reproducing and delivery to the
Agents of copies of the Indenture and all supplements and amendments thereto;

         (n)     Any fees charged by rating agencies for the rating of the
Bonds;

         (o)     The fees and expenses, if any, incurred with respect to any
filing with the National Association of Securities Dealers, Inc.;

         (p)     Any advertising and other out-of-pocket expenses of the Agents
incurred with the approval of the Company;

         (q)     The cost of preparing, and providing any CUSIP or other
identification numbers for, the Bonds;

         (r)     The fees and expenses of any book-entry depositary and any
nominees thereof in connection with the Bonds; and

         (s)     The fees and expenses, if any, incurred in connection with any
filing with or approval by the ICC in connection with the issuance of the
Bonds.

SECTION 10.        REPRESENTATIONS, WARRANTIES AND AGREEMENTS TO SURVIVE
DELIVERY.

         All representations, warranties and agreements contained in this
Agreement or in certificates of officers of the Company submitted pursuant
hereto or thereto, shall remain operative and in full force and effect,
regardless of any investigation made by or on behalf of the Agents or any
controlling person of any Agent, or





                                       29
<PAGE>   30
by or on behalf of the Company, and shall survive each delivery of and payment
for any of the Bonds.

SECTION 11.        TERMINATION.

         (t)     Termination of this Agreement.  This Agreement (excluding any
Terms Agreement) may be terminated for any reason, at any time by either the
Company or an Agent upon the giving of 30 days' written notice of such
termination to the other party hereto.

         (u)     Termination of a Terms Agreement.  The applicable Agent may
terminate any Terms Agreement, immediately upon notice to the Company, at any
time prior to the Settlement Date relating thereto (i) if there has been, since
the date of such Terms Agreement or since the respective dates as of which
information is given in the Registration Statement, any material adverse change
in the condition, financial or otherwise, or in the earnings, business affairs
or business prospects of the Company, whether or not arising in the ordinary
course of business, or (ii) if there shall have occurred any material adverse
change in the financial markets in the United States or any outbreak or
escalation of hostilities or other national or international calamity or crisis
the effect of which is such as to make it, in the judgment of such Agent,
impracticable to market the Bonds or enforce contracts for the sale of the
Bonds, or (iii) if trading in any securities of the Company or CIPSCO
Incorporated has been suspended by the SEC or a national securities exchange,
or if trading generally on either the American Stock Exchange or the New York
Stock Exchange shall have been suspended, or minimum or maximum prices for
trading have been fixed, or maximum ranges for prices for securities have been
required, by either of said exchanges or by order of the SEC or any other
governmental authority, or if a banking moratorium shall have been declared by
either federal or New York authorities, or (iv) if the rating assigned by any
nationally recognized securities rating agency to any debt securities of the
Company as of the date of any applicable Terms Agreement shall have been
lowered since that date or if any such rating agency shall have publicly
announced that it has under surveillance or review, with possible negative
implications, its rating of any debt securities of the Company, or (v) if there
shall have come to the applicable Agent's attention any facts that would cause
such Agent to believe that the Prospectus, at the time it was required to be
delivered to a purchaser of Bonds, contained an untrue statement of a material
fact or omitted to state a material fact necessary in order to make the
statements therein, in light of the circumstances existing at the time of such
delivery, not misleading.

         (v)     General.  In the event of any such termination, neither party
will have any liability to the other party hereto, except that (i) each Agent
shall be entitled to any commission earned in accordance with the third
paragraph of Section 3(a) hereof, (ii) if at the time of termination (a) each
Agent shall own any Bonds purchased pursuant to a Terms Agreement with the
intention of reselling them or (b) an offer to purchase any of the Bonds has





                                       30
<PAGE>   31
been accepted by the Company but the time of delivery to the purchaser or his
agent of the Bond or Bonds relating thereto has not occurred, the covenants set
forth in Sections 4 and 7 hereof shall remain in effect until such Bonds are so
resold or delivered, as the case may be, and (iii) the covenant set forth in
Section 4(h) hereof, the provisions of Section 5 hereof, the indemnity and
contribution agreements set forth in Section 8 hereof, and the provisions of
Sections 9, 10 and 14 hereof shall remain in effect.

SECTION 12.        NOTICES.

         Unless otherwise provided herein, all notices required under the terms
and provisions hereof shall be in writing, either delivered by hand, by mail or
by telex, telecopier or telegram, and any such notice shall be effective when
received at the address specified below:

         If to the Company:

                 Central Illinois Public Service Company
                 607 East Adams Street
                 Springfield, Illinois 62701
                 Attention:  Treasurer

         If to the Agents:

                 _________________________________
                 _________________________________
                 _________________________________
                 _________________________________

         ______________________

                 _________________________________
                 _________________________________
                 _________________________________
                 _________________________________

         ______________________

                 _________________________________
                 _________________________________
                 _________________________________
                 _________________________________



or at such other address as such party may designate from time to time by
notice duly given in accordance with the terms of this Section 12.



SECTION 13.      GOVERNING LAW.





                                       31
<PAGE>   32
         This Agreement and all the rights and obligations of the parties shall
be governed by and construed in accordance with the laws of the State of
Illinois applicable to agreements made and to be performed in the State of
Illinois.

SECTION 14.        PARTIES.              

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





                                       32
<PAGE>   33
         If the foregoing is in accordance with the Agents' understanding of
our agreement, please sign and return to the Company a counterpart hereof,
whereupon this instrument along with all counterparts will become a binding
agreement between the Agents and the Company in accordance with its terms.

                                         Very truly yours,

                                         CENTRAL ILLINOIS PUBLIC SERVICE COMPANY



                                             By:  . . . . . . . . . . . . . . . 
                                                Name:
                                                Title:

Accepted:

[Agents]


By: . . . . . . . . . . . . . . . . . . . . .
     Name:
     Title:






                                       33
<PAGE>   34
                                                                       EXHIBIT A



         The following terms, if applicable, shall be agreed to by the
applicable Agent and the Company pursuant to each Terms Agreement:

                 Principal Amount:  $         
                   (or principal amount of foreign currency)
                 Interest Rate:

                     If Redeemable:

                          Initial Redemption Date:
                          Initial Redemption Percentage:
                          Annual Redemption Percentage Reduction:

                 Date of Maturity:
                 Purchase Price:     %
                 Settlement Date and Time:
                 Stand-Off Period (if any):
                 Additional Terms:

Also, agreement as to whether the following will be required:

                 Officer's Certificate pursuant to Section 7(b)
                   of the Distribution Agreement.
                 Legal Opinion pursuant to Section 7(c) of the
                   Distribution Agreement.
                 Comfort Letter pursuant to Section 7(d) of the
                   Distribution Agreement.
                 Stand-off Agreement pursuant to Section 4(k) of the
                   Distribution Agreement.





<PAGE>   35
                                   SCHEDULE A


         As compensation for the services of the Agents hereunder, the Company
shall pay the applicable Agent, on a discount basis, a commission for the sale
of each Bond equal to the principal amount of such Bond multiplied by the
appropriate percentage set forth below:


<TABLE>
<CAPTION>
                                                                                        PERCENT OF 
MATURITY RANGES                                                                      PRINCIPAL AMOUNT
- ---------------                                                                      ----------------
<S>                                                                                       <C>
From 9 months but less than 1 year  . . . . . . . . . . . . . . . . . . . . .            
From 1 year but less than 18 months . . . . . . . . . . . . . . . . . . . . .             
From 18 months but less than 2 years  . . . . . . . . . . . . . . . . . . . .             
From 2 years but less than 3 years  . . . . . . . . . . . . . . . . . . . . .             
From 3 years but less than 4 years  . . . . . . . . . . . . . . . . . . . . .             
From 4 years but less than 5 years  . . . . . . . . . . . . . . . . . . . . .             
From 5 years but less than 6 years  . . . . . . . . . . . . . . . . . . . . .             
From 6 years but less than 7 years  . . . . . . . . . . . . . . . . . . . . .             
From 7 years but less than 10 years . . . . . . . . . . . . . . . . . . . . .             
From 10 years but less than 15 years  . . . . . . . . . . . . . . . . . . . .             
From 15 years but less than 20 years  . . . . . . . . . . . . . . . . . . . .             
From 20 years but less than 30 years  . . . . . . . . . . . . . . . . . . . .             
30 years or more  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .                *
</TABLE>

*        Commission on Bonds with maturities of 30 years or more shall be
         agreed to by the Company and the applicable Agent at the time of such
         transaction.






<PAGE>   1

                                                               Draft of 10/07/94


                                                                    EXHIBIT 4.02




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



                             SUPPLEMENTAL INDENTURE

                            DATED             , 199 


                    CENTRAL ILLINOIS PUBLIC SERVICE COMPANY

                                       TO

                            BANK OF AMERICA ILLINOIS
                (FORMERLY CONTINENTAL BANK, NATIONAL ASSOCIATION
                   AND FORMERLY CONTINENTAL ILLINOIS NATIONAL
                       BANK AND TRUST COMPANY OF CHICAGO)
                             AND            
                                 -----------------
                                  AS TRUSTEES


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



   (SUPPLEMENTAL TO THE INDENTURE OF MORTGAGE OR DEED OF TRUST DATED OCTOBER 1,
   1941, EXECUTED BY CENTRAL ILLINOIS PUBLIC SERVICE COMPANY TO CONTINENTAL
   ILLINOIS NATIONAL BANK AND TRUST COMPANY OF CHICAGO AND EDMOND B. STOFFT, AS
   TRUSTEES)


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



                 (PROVIDING FOR FIRST MORTGAGE BONDS, SERIES   
                        DUE                      ,     )
                            


[FIRST MORTGAGE BOND OR FIRST MORTGAGE BONDS - MEDIUM TERM NOTE SERIES]

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

THIS INSTRUMENT WAS PREPARED BY WILLIAM J. HARMON, OF JONES, DAY, REAVIS &
POGUE, 77 WEST WACKER DRIVE, SUITE 3500, CHICAGO, ILLINOIS 60601





<PAGE>   2
       THIS SUPPLEMENTAL INDENTURE, dated            , 199 , made and entered
into by and between CENTRAL ILLINOIS PUBLIC SERVICE COMPANY, a corporation
organized and existing under the laws of the State of Illinois (hereinafter
commonly referred to as the "Company"), and BANK OF AMERICA ILLINOIS (formerly
Continental Bank, National Association and formerly Continental Illinois
National Bank and Trust Company of Chicago), an Illinois banking corporation
having its office or place of business in the City of Chicago, Cook County,
State of Illinois (hereinafter commonly referred to as the "Trustee"), and
                 (successor Co-Trustee), of the City of Chicago, Cook County,
State of Illinois, as Trustees under the Indenture of Mortgage or Deed of Trust
dated October 1, 1941, heretofore executed and delivered by the Company to
Continental Illinois National Bank and Trust Company of Chicago and Edmond B.
Stofft, as Trustees, as amended by the Supplemental Indentures dated,
respectively, September 1, 1947, January 1, 1949, February 1, 1952, September
1, 1952, June 1, 1954, February 1, 1958, January 1, 1959, May 1, 1963, May 1,
1964, June 1, 1965, May 1, 1967, April 1, 1970, April 1, 1971, September 1,
1971, May 1, 1972, December 1, 1973, March 1, 1974, April 1, 1975, October 1,
1976, November 1, 1976, October 1, 1978, August 1, 1979, February 1, 1980,
February 1, 1986, May 15, 1992, July 1, 1992, September 15, 1992 and April 1,
1993, heretofore executed and delivered by the Company to the Trustees under
said Indenture of Mortgage or Deed of Trust dated October 1, 1941; said
Indenture of Mortgage or Deed of Trust dated October 1, 1941, as amended by
said Supplemental Indentures, being hereinafter sometimes referred to as the
"Indenture"; and said Bank of America Illinois and                 , as such
Trustees, being hereinafter sometimes referred to as the "Trustees" or the
"Trustees under the Indenture"; WITNESSETH:

       WHEREAS, the Company has determined, by resolutions duly adopted by its
Board of Directors and/or the Executive Committee thereof, to issue bonds of an
additional series under and to be secured by the Indenture, as hereby amended,
to be known and designated as First Mortgage Bonds, Series __  (hereinafter
sometimes referred to as the "bonds of Series __" or the "bonds of said
Series"), and the bonds of said Series shall be authorized, authenticated and
issued only as registered bonds without coupons, and to execute and deliver
this supplemental indenture, pursuant to the provisions of Article I, as
amended, paragraphs (e) and (f) of Section 6 of Article II and Article XVI of
the Indenture, for the purpose of (1) creating and authorizing not to exceed 
$       aggregate principal amount of bonds of Series   and setting forth the
form, terms, provisions and characteristics thereof, (2) modifying or amending
certain provisions of the Indenture in the particulars and to the extent
hereinafter specifically provided, and (3) specifically describing and
conveying to the Trustees, upon the trusts and for the purposes of the
Indenture, as hereby amended, certain additional properties which the Company
has constructed or otherwise acquired subsequent to                ,     ,
except property of the character of that expressly excepted or excluded from
the lien of the Indenture by the terms thereof,





<PAGE>   3
and which are owned by the Company at the date of the execution hereof and are
subject in any event to the lien and effect of the Indenture; and

       WHEREAS, the execution and delivery of the Company of this supplemental
indenture have been duly authorized by the Board of Directors of the Company
and/or the Executive Committee thereof; and the Company has requested, and
hereby requests, the Trustees to enter into and join with the Company in the
execution and delivery of this supplemental indenture; and

       WHEREAS, the bonds of Series   are to be authorized, authenticated and
issued only in the form of registered bonds without coupons, and each of the
bonds of Series   shall be substantially in the following form, to wit:



                                      2

<PAGE>   4
 (Form of face of registered bonds without coupons of Series  )

No.                                                               $             


                    CENTRAL ILLINOIS PUBLIC SERVICE COMPANY
                         First Mortgage Bond, Series  
                              Due           ,     

       Central Illinois Public Service Company, an Illinois corporation
(hereinafter referred to as the "Company"), for value received, hereby promises
to pay to           , or registered assigns, the principal sum of            on
the       day of         ,     , and to pay to the registered owner interest on
said sum from the date hereof, at the rate of                per centum per
annum, payable half-yearly on the first day of          and the first day of
in each year, until said principal sum is paid.  The interest so payable on any
1 or        1 will be paid, subject to certain exceptions provided in the
Supplemental Indenture dated           , 199 , hereinafter referred to, to the
person in whose name this bond is registered at the close of business of the
Trustee on the immediately preceding         15 or        15, as the case may
be.  Both the principal of and the interest on this bond shall be payable at
the office or agency of the Company in the City of Chicago, State of Illinois,
in any coin or currency of the United States of America which at the time of
payment is legal tender for public and private debts, or, at the option of the
registered owner, in like coin or currency, at the office or agency of the
Company in the Borough of Manhattan, City of New York, State of New York.  At
the option of the Company, interest on this bond may be paid by check mailed on
the interest payment date to the registered owner.

       The provisions of this bond are continued on the reverse side hereof and
such continued provisions shall have the same effect, for all purposes, as
though fully set forth at this place.

       This bond shall not be valid or become obligatory for any purpose unless
and until it shall have been authenticated by the execution by the Trustee or
its successor in trust under the Indenture of the Trustee's Certificate
endorsed hereon.

       IN WITNESS WHEREOF, Central Illinois Public Service Company has caused
this bond to be executed in its name by the manual or facsimile signature of
its President or one of its Vice-Presidents, and its corporate seal or a
facsimile thereof  to be affixed or imprinted hereon and attested by the manual
or



                                      3

<PAGE>   5
facsimile signature of its Secretary or one of its Assistant Secretaries.

Dated as of

                                CENTRAL ILLINOIS PUBLIC SERVICE COMPANY


                                By 
                                   -----------------------------------
                                                  President


ATTEST:


By
   ---------------------------
          Secretary



                (Form of reverse side of registered bond without
                              coupons of Series  )


       This bond is one of the bonds issued and to be issued from time to time
under and in accordance with and all secured by the indenture of mortgage or
deed of trust dated October 1, 1941, executed and delivered by the Company to
Bank of America Illinois (formerly Continental Bank, National Association and
formerly Continental Illinois National Bank and Trust Company of Chicago and
hereinafter referred to as the "Trustee") and Edmond B. Stofft, as Trustees,
and the various indentures supplemental thereto each executed and delivered by
the Company to the Trustees under said indenture of mortgage or deed of trust
dated October 1, 1941, prior to the authentication of this bond (said indenture
of mortgage or deed of trust and said supplemental indentures being hereinafter
referred to, collectively, as the "Indenture"); and said Bank of America
Illinois and                   (successor Co-Trustee) being now the Trustees
under the Indenture.  Reference to the Indenture and to all supplemental
indentures, if any, hereafter executed pursuant to the Indenture is hereby made
for a description of the property mortgaged and pledged, the nature and extent
of the security and the rights of the holders and registered owners of said
bonds and of the Trustees and of the Company in respect of such security.  By
the terms of the Indenture the bonds to be secured thereby are issuable in
series, which may vary as to date, amount, date of maturity, rate of interest,
redemption provisions, medium of payment and in other respects as in the
Indenture provided.  [The bonds of Series     are not redeemable prior to
maturity.]  [At the option of the Company and upon 30 days' notice by
first-class mail and with the effect provided  in Article V of the Indenture,
bonds of Series  , of which this is one, may be redeemed on and after         ,
as a whole at any time, or in part from time to time, at the redemption
price, expressed as a



                                      4

<PAGE>   6
percentage of the principal amount of the bonds hereinafter stated under
"Redemption Price," in effect at the date fixed for redemption, together with
accrued interest to such date on the bonds to be redeemed:

     If redeemed                           If redeemed
     during the                            during the
     12 months                             12 months
     beginning        Redemption           beginning        Redemption
     [         1]       Price              [         1]       Price  
      ----------      ----------           ------------     ----------





             (The redemption prices set forth in Article I of this
                   supplemental indenture are incorporated in
               and made a part of this form of bond by reference
                  thereto and shall be inserted at this point
                              in each such bond.)

[provided, that none of the bonds of Series   may be redeemed at the applicable
Redemption Price prior to           ,     , if such redemption is for the
purpose of refunding, or is in anticipation of the refunding, of such bonds
through the use, directly or indirectly, of funds borrowed by the Company at an
interest cost to the Company of less than [    %] per annum.]

        In case of certain events of default specified in the Indenture, the
principal of this bond may be declared or may become due and payable in the
manner and with the effect provided in the Indenture.  No recourse shall be had
for the payment of the principal of or interest on this bond, or for any claim
based hereon, or otherwise in respect hereof or of the Indenture or any
indenture supplemental thereto, to or against any incorporator, stockholder,
officer or director, past, present or future, of the Company, or of any
predecessor or successor corporation, either directly or through the Company,
or such predecessor or successor corporation, under any constitution or statute
or rule of law, or by the enforcement of any assessment, penalty, or otherwise,
all such liability of incorporators, stockholders, directors and officers being
waived and released by the registered owner hereof by the acceptance of this
bond and being likewise waived and released by the terms of the Indenture. This
bond is transferable by the registered owner hereof, in person or by attorney
duly authorized, at the principal office or place of business of the Trustee
under the Indenture, upon the surrender and cancellation of this bond and the
payment of any stamp tax or other governmental charge, and upon any such
transfer a new registered bond or bonds without coupons, of the same series
[and maturity] and for the same



                                      5

<PAGE>   7
aggregate principal amount, will be issued to the transferee in exchange
herefore; provided, that the Company shall not be required (a) to issue,
register, transfer or exchange any bonds of this series during a period
beginning at the opening of business on the tenth business day next preceding
any selection of said bonds to be redeemed and ending at the close of business
on the day on which the applicable notice of redemption is given, (b) to
register, transfer or exchange any bonds of this series selected, called or
being called for redemption in whole or in part or (c) to register, transfer or
exchange bonds of this series for a period of ten days next preceding an
interest payment date with respect to said bonds.

        AND WHEREAS, on each of the bonds of Series   (whether issued in
temporary or definitive form) there is to be endorsed a certificate of the
Trustee substantially in the following form, to wit:

                             Trustee's Certificate

        This bond is one of the bonds of the series designated therein,
described in the within mentioned Indenture.

                                        BANK OF AMERICA ILLINOIS,
                                          as Trustee


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


        NOW, THEREFORE, in consideration of the premises and of the sum of One
Dollar ($1.00) duly paid by the Trustees to the Company, and of other good and
valuable considerations, the receipt whereof is hereby acknowledged, and for
the purpose of further assuring to the Trustees under the Indenture their title
to, or lien upon, the property hereinafter described, under and pursuant to the
terms of the Indenture, as hereby amended, and for the purpose of further
securing the due and punctual payment of the principal of and interest and the
premium, if any, on all bonds which have been heretofore or shall be hereafter
issued under the Indenture and indentures supplemental thereto and which shall
be at any time outstanding thereunder and secured thereby, and for the purpose
of securing the faithful performance and observance of all the covenants and
conditions set forth in the Indenture and/or in any  indenture supplemental
thereto, the Company has given, granted, bargained, sold, transferred,
assigned, pledged, mortgaged, warranted the title to and conveyed, and by these
presents does give, grant, bargain, sell, transfer, assign, pledge, mortgage,
warrant the title to and convey unto BANK OF AMERICA ILLINOIS and
____________________, as Trustees under the Indenture as therein provided, and
their successors in the trusts thereby created, and to their assigns, all the
right, title and interest of the Company in and to any and all premises,
plants, property, leases and leaseholds, franchises, permits, rights and
powers, of



                                      6

<PAGE>   8
every kind and description, real and personal, which have been acquired by the
Company through construction, purchase, consolidation or merger, or otherwise,
subsequent to                    ,     , and which are owned by the Company at
the date of the execution hereof, together with the rents, issues, products and
profits therefrom, excepting, however, and there is hereby expressly reserved
and excluded from the lien and effect of the Indenture and of this supplemental
indenture, all right, title and interest of the Company, now owned, in and to
(a) all cash, bonds, shares of stock, obligations and other securities not
deposited with the Trustee or Trustees under the Indenture, and (b) all
accounts and bills receivable, judgments (other than for the recovery of real
property or establishing a lien or charge thereon or right therein) and choses
in action not specifically assigned to and pledged with the Trustee or Trustees
under the Indenture, and (c) all [tangible] personal property acquired or
manufactured by the Company for sale, lease, rental or consumption in the
ordinary course of business, and (d) the last day of each of the demised terms
created by any lease of property leased to the Company and under each and every
renewal of any such lease, the last day of each and every such demised term
being hereby expressly reserved to and by the Company, and (e) all gas, oil and
other minerals now or hereafter existing upon, within or under any real estate
of the Company subject to, or hereby subjected to, the lien of the Indenture.

        Without in any way limiting or restricting the generality of the
foregoing description or the foregoing exceptions and reservations, the Company
hereby expressly gives, grants, bargains, sells, transfers, assigns, pledges,
mortgages, warrants the title to and conveys unto said BANK OF AMERICA ILLINOIS
and                , as Trustees under the Indenture, and unto their successor
or successors in trust, and their assigns, under the trusts and for the
purposes of the Indenture, as hereby amended, the properties described in
Schedule A to this supplemental indenture, which is incorporated herein by
reference with the same force and effect as if set forth at length herein, and
which properties have been acquired by the Company, through construction,
purchase, consolidation or merger, or otherwise, subsequent to         , (except
as otherwise indicated in said Schedule A), and which are owned by the  Company
at the date of the execution hereof together with the tenements, hereditaments
and appurtenances thereunto belonging or appertaining, TO HAVE AND TO HOLD all
said property, rights and interests forever, BUT IN TRUST, NEVERTHELESS, upon
the trusts, for the purposes and subject to all the terms, conditions,
provisions and restrictions of the Indenture, as hereby amended.

        And upon the considerations and for the purposes aforesaid, and in
order to provide, pursuant to the terms of the Indenture, for the issuance
under the Indenture, as hereby amended, of bonds of Series   and to fix the
terms, provisions and characteristics of the bonds of said Series, and to
modify or amend the Indenture in the particulars and to the extent hereinafter
in



                                      7

<PAGE>   9
this supplemental indenture specifically provided, the Company hereby covenants
and agrees with the Trustees as follows:


                                   ARTICLE I

        SECTION 1.  A series of bonds issuable under the Indenture, as hereby
amended, to be known and designated as "First Mortgage Bonds, Series  "
(hereinafter in this Article sometimes referred to as the "bonds of Series  "
or the "bonds of said Series"), and which shall be executed, authenticated and
issued only in the form of registered bonds without coupons, is hereby created
and authorized.  The bonds of Series   and the Trustee's Certificate to be
endorsed thereon shall be substantially in the respective forms thereof
hereinbefore recited.  Each bond of said Series shall be dated as of the
interest payment date thereof to which interest was paid next preceding the
date of issue, unless (a) issued on an interest payment date thereof to which
interest was paid, in which event it shall be dated as of the date of issue, or
(b) issued prior to the occurrence of the first interest payment date thereof
to which interest was paid, in which event it shall be dated                  ;
and all bonds of said Series shall be due and payable           ,     ; shall
bear interest from      the date thereof at the rate of            per cent 
(  %) per annum payable half-yearly on the first day of       and the first day
of        in each year to the respective persons in whose names such bonds are
registered at the close of business of the Trustee on the applicable record
date as provided in Section 2 of this Article I; and shall be payable, as to
both principal and interest, at the office or agency of the Company in the City
of Chicago, State of Illinois, in any coin or currency of the United States of
America which at the time of payment is legal tender for public and private
debts, or, at the option of the registered owner, in like coin or currency, at
the office or agency of the Company in the Borough of Manhattan, City of New
York, State of New York.  At the option of the Company, interest on the bonds
of Series     may be paid by check mailed on the interest payment date to the
registered owner.

        SECTION 2.  Anything contained in Section 14 of Article I of the
Indenture, or elsewhere in the Indenture, to the contrary notwithstanding, only
the person in whose name any of the bonds of said Series is registered at the
close of business on any Record Date, as hereinafter defined, with respect to
any interest payment date shall be entitled to receive the interest payable on
such interest payment date notwithstanding the cancellation of such bonds upon
any transfer or exchange subsequent to the record date and prior to such
interest payment date; provided, however, that if and to the extent the Company
shall default in the payment of the interest due on such interest payment date,
such defaulted interest shall be paid to the persons in whose names outstanding
bonds of said Series are registered on the record date to be established by the
Trustee for payment of such defaulted interest.


                                      8


<PAGE>   10
        The term "Record Date" as used in this Article I with respect to any
interest payment date (other than an interest payment date for the payment of
defaulted interest) shall mean the               or              , as the case
may be, next preceding such interest payment date, or, if such               or
                  , shall be a legal holiday or a day on which banking 
institutions in the City of Chicago, Illinois, are authorized by law to close, 
then the next preceding day which shall not be a legal holiday or a day on 
which such institutions are so authorized to close.

        SECTION 3.  [The bonds of Series     are not redeemable prior to
maturity.]  [At the option of the Company and upon the notice and in the manner
and with the effect provided in Article V of the Indenture, except as to notice
as hereinafter provided, bonds of Series     may be redeemed on and after      
       , as a whole at any time, or in part from time to time, at the redemption
price, expressed as a percentage of the principal amount of the bonds
hereinafter stated under "Redemption Price," in effect at the date fixed for
redemption, together with accrued interest to such date on the bonds to be
redeemed:

       If redeemed                 If redeemed
       during the                  during the
       12 months                   12 months
       beginning      Redemption   beginning      Redemption
                         Price                       Price  
       ------------   ----------   ------------   ----------





[provided, that none of the bonds of Series   may be redeemed at the applicable
Redemption Price prior to [              ,     ,] if such redemption is for the
purpose of refunding, or is in anticipation of the refunding, of such bonds
through the use, directly or indirectly, of funds borrowed by the Company at an
interest cost to the Company of less than [     %] per annum.]

        The foregoing redemption prices and terms shall be set forth in each of
the bonds of Series   prior to the execution and authentication thereof.]

        [SECTION 4.  Notice of redemption of any bonds of Series   shall be
given as provided in Article V of the Indenture; provided, however, such notice
need be given only by first-class mail and no publication of notice of
redemption shall be required.]

        SECTION 5.  The Company shall not be required (a) to issue, register,
transfer or exchange any bonds of said Series during a period beginning at the
opening of business on the tenth business day next preceding any selection of
bonds of said Series to be redeemed and ending at the close of business on the
day on



                                      9

<PAGE>   11
which the applicable notice of redemption is given, (b) to register, transfer
or exchange any bonds of said Series selected, called or being called for
redemption in whole or in part or (c) to register, transfer or exchange bonds
of said Series for a period of ten (10) days next preceding an interest payment
date with respect to bonds of said Series.

        The bonds of said Series shall, from time to time, be executed on
behalf of the Company and sealed with the corporate seal of the Company, all in
the manner provided or permitted by Section 6 of Article I of the Indenture, as
follows:

        (a)      bonds of Series   executed on behalf of the Company by its
   President or a Vice-President and/or by its Secretary or an Assistant
   Secretary may be so executed by the facsimile signature of such President or
   Vice-President and/or of such Secretary or Assistant Secretary, as the case
   may be, of the Company, or of any person or persons who shall have been such
   officer or officers, as the case may be, of the Company on or subsequent to
   the date of this supplemental indenture, notwithstanding that he or they may
   have ceased to be such officer or officers of the Company at the time of the
   actual execution, authentication, issue or delivery of any of such bonds,
   and any such facsimile signature or signatures of any such officer or
   officers on any such bonds shall constitute execution of such bonds on
   behalf of the Company by such officer or officers of the Company for the
   purposes of the Indenture, as hereby amended, and shall be valid and
   effective for all purposes, provided that all bonds shall always be executed
   on behalf of the Company by the signature, manual or facsimile, of its
   President or a Vice-President and of its Secretary or an Assistant
   Secretary, and provided, further, that none of such bonds shall be executed
   on behalf of the Company by the same officer or person acting in more than
   one capacity; and

        (b)      such corporate seal of the Company may be a facsimile, and any
   bonds of said Series on which such facsimile seal shall be affixed,
   impressed, imprinted or reproduced shall be deemed to be sealed with the
   corporate seal of the Company for the purposes of the Indenture, as hereby
   amended, and such facsimile seal shall be valid and effective for all
   purposes.


                                   ARTICLE II

        SECTION 1.  Sections [10] and [16] of Article III of the Indenture are,
and each of them is, hereby amended by striking out the words "Series I, J, K,
L, Newton, W, X, Y and Z" wherever the same occur in each of said sections, and
by inserting, in lieu thereof, the words ["Series   through Series  , Newton
Series, Series   through Series  "] and the Company hereby covenants and agrees
to observe and comply with the provisions of said sections as hereby amended.



                                      10

<PAGE>   12
                                  ARTICLE III

        SECTION 1.  The provisions of this supplemental indenture shall become
and be effective from and after the execution hereof, except as otherwise
expressly provided in this Article; and the Indenture, as hereby amended, shall
remain in full force and effect.

        SECTION 2.  Each reference in the Indenture, or in this supplemental
indenture, to any article, section, term or provision of the Indenture shall
mean and be deemed to refer to such article, section, term or provision of the
Indenture, as hereby amended, except where the context otherwise indicates.

        SECTION 3.  All the covenants, provisions, stipulations and agreements
in this supplemental indenture contained are and shall be for the sole and
exclusive benefit of the parties hereto, their successors and assigns, and of
the holders and registered owners from time to time of the bonds and of the
coupons issued and outstanding from time to time under and secured by the
Indenture, as hereby amended.

        This supplemental indenture has been executed in a number of identical
counterparts, each of which so executed shall be deemed to be an original.

        At the time of the execution of this supplemental indenture, the
aggregate principal amount of all indebtedness of the Company outstanding, or
to be presently outstanding, under and secured by the Indenture, as hereby
amended, taking into account the refunding of [$             of First Mortgage
Bonds, Series  , is $             , evidenced by First Mortgage Bonds, Series
through Series  , inclusive, Series   and Newton Series] issued by the Company
under said Indenture and now outstanding or to be presently issued by it under
said Indenture, as follows:

<TABLE>
<CAPTION>
                                                                                          Principal
  Series                  Interest Rate               Maturity Date                        Amount   
- ------------              -------------               -------------                      ------------
<S>                      <C>                          <C>                               <C>
      K                   4-5/8                       June 1, 1995                        15,000,000
      L                   5-7/8                       May 1, 1997                         15,000,000
Newton Series             6-5/8                       August 1, 2009                       1,000,000
      W                   7-1/8                       May 15, 1999                        50,000,000
                          8-1/2                       May 15, 2022                        33,000,000
      X                   6-1/8                       July 1, 1997                        43,000,000
                          7-1/2                       July 1, 2007                        50,000,000
      Y                   6-3/4                       September 15, 2002                  23,000,000
      Z                   6                           April 1, 2000                       25,000,000
      Z                   6-3/8                       April 1, 2003                       40,000,000
     [  ]                 [    ]                      [            ]                       [         ](a)

                                                          TOTAL........                 $              
                                                                                        ================
</TABLE>

          



                                      11

<PAGE>   13
(a)       To be presently issued by the Company under said Indenture.
               IN WITNESS WHEREOF, said Central Illinois Public Service Company
has caused this instrument to be executed in its corporate name by its
President or a Vice-President and its corporate seal or a facsimile thereof to
be hereunto affixed and to be attested by its Secretary or an Assistant
Secretary, and said Bank of America Illinois, for the purpose of entering into
and joining with the Company in the execution of this supplemental indenture,
has caused this instrument to be executed in its corporate name by one of its
Vice-Presidents and its corporate seal to be hereunto affixed and to be
attested by one of its Trust Officers, and said              , for the purpose
of entering into and joining with the Company in the execution of this
supplemental indenture, has signed and sealed this instrument; all as of the
day and year first above written.

                                         CENTRAL ILLINOIS PUBLIC SERVICE 
                                         COMPANY


                                         By
                                           ------------------------------
                                           Senior Vice President-Finance
(CORPORATE SEAL)

ATTEST:


- ------------------------------                              
     Assistant Secretary


                                          BANK OF AMERICA ILLINOIS


                                          By
                                            -----------------------------
                                                      Vice President
(CORPORATE SEAL)

ATTEST:


- --------------------------------
        Trust Officer

                                          ---------------------------(SEAL)


                                      12


<PAGE>   14
STATE OF ILLINOIS   )
                    )        ss
COUNTY OF           )


               I,                     , a Notary Public in and for said County
in the State aforesaid, do hereby certify that                     , Senior
Vice President - Finance of CENTRAL ILLINOIS PUBLIC SERVICE COMPANY, a
corporation organized and existing under the laws of the State of Illinois, and
                , Assistant Secretary of said corporation, who are both 
personally known to me to be the same persons whose names are subscribed to 
the foregoing instrument as such officers, respectively, of said corporation, 
and who are both personally known to me to be such officers, appeared before 
me this day in person and severally acknowledged that they signed, sealed and 
delivered said instrument as their free and voluntary act as such officers, 
and as the free and voluntary act of said corporation, for the uses and 
purposes therein set forth.

               Given under my hand and official seal this      day of
                     , 199 .


                                           -------------------------------
                                                      Notary Public

(NOTARIAL SEAL)

                                           My commission expires 





<PAGE>   15
STATE OF ILLINOIS   )
                    )        ss
COUNTY OF           )


               I,                     , a Notary Public in and for said County
in the State aforesaid, do hereby certify that:

               (a)                     , a Vice President of BANK OF AMERICA
       ILLINOIS, a national banking association organized and existing under
       the laws of the United States of America, and             , a Trust
       Officer of said association, who are both personally known to me to be
       the same persons whose names are subscribed to the foregoing instrument
       as such officers, respectively, of said association, and who are both
       personally known to me to be such officers, appeared before me this day
       in person and severally acknowledged that they signed, sealed and
       delivered said instrument as their free and voluntary act as such
       officers, and as the free and voluntary act of said association, for the
       uses and purposes therein set forth; and

               (b)                      , personally known to me to be the same
       person whose name is subscribed to the foregoing instrument, appeared
       before me this day in person and acknowledged that he signed, sealed and
       delivered said instrument as his free and voluntary act, for the uses
       and purposes therein set forth.

               Given under my hand and official seal this      day of
                      , 199 .


                                                       
                                           -------------------------------
                                                      Notary Public

(NOTARIAL SEAL)

                                           My commission expires           





<PAGE>   16
                                   Schedule A

              TO THE SUPPLEMENTAL INDENTURE DATED          , 199 
                 OF CENTRAL ILLINOIS PUBLIC SERVICE COMPANY TO
                         BANK OF AMERICA ILLINOIS AND
                                           AS TRUSTEES
 





<PAGE>   1
                                                                       Exhibit 5



                           JONES, DAY, REAVIS & POGUE
                                 77 West Wacker
                         Chicago, Illinois  60601-1692




                                October 18, 1994




Central Illinois Public Service Company
607 East Adams Street
Springfield, Illinois  62739

Ladies and Gentlemen:

        We have examined the Form S-3 Registration Statement, dated October
18, 1994 (the "Registration Statement"), of Central Illinois Public Service
Company (the "Company"), to which this opinion is an exhibit, for the
registration under the Securities Act of 1933, as amended (the "Act"), of an
aggregate amount of $50,000,000 of (a) First Mortgage Bonds of one or more
series (the "Bonds") and Medium-Term Notes of one or more series (the "Notes,"
such Bonds and Notes, collectively the "Debt Securities") to be issued pursuant
to the Indenture of Mortgage or Deed of Trust dated October 1, 1941, as
heretofore amended and supplemented (the "Indenture of Mortgage") and as to be
further amended and supplemented by one or more proposed Supplemental
Indentures (collectively, the "New Supplemental Indentures" and each a "New
Supplemental Indenture") to Bank of America Illinois and a successor individual
co-trustee, as Trustees, and (b) shares of Cumulative Preferred Stock, par
value $100 per share ("New Preferred" and such shares of New Preferred and the
Debt Securities, collectively, the "Securities").  Each New Supplemental
Indenture will relate to a series of Debt Securities and will set forth or
provide for the maturity, interest rate, payment dates, redemption provisions,
if any, and certain other terms and conditions of such series of Debt
Securities.  The Indenture of Mortgage and New Supplemental Indentures are
herein referred to as the "Indenture."  The New Preferred will be issued
pursuant to the Restated Articles of Incorporation (the "Articles") of the
Company and resolutions of the Board of Directors establishing the series of
New Preferred ("Series Resolutions").  Each Series Resolution will relate to a
series of New Preferred and will set forth the number of shares, designation,
dividend rate (or method of calculation), redemption and other terms and
provisions of such series of New Preferred.

        We have also examined such documents, records and matters of law as we
have deemed necessary for purposes of this opinion.





<PAGE>   2
Central Illinois Public Service Company
October 18, 1994
Page 2


Based on the foregoing, and subject to the qualifications set forth herein, we
are of the opinion that:

        1. The Company is a corporation duly organized and existing under the
laws of the State of Illinois.

        2. The Indenture, other than the New Supplemental Indentures,
constitutes a valid and binding instrument of the Company.

        3. No federal commission and no state commission, other than the
Illinois Commerce Commission (the "Illinois Commission"), has jurisdiction over
the proposed issuance and sale of the Securities by the Company.  The
Registration Statement must become effective under the Act prior to the offer
or sale of any New Preferred, and the Registration Statement must become
effective under the Act and the New Supplemental Indenture relating to each
series of the Debt Securities must become qualified under the Trust Indenture
Act of 1939, as amended, prior to the offer or sale of the Debt Securities.

        4. Subject to the conditions set forth below, each New Supplemental
Indenture, the preliminary form of which is filed as an exhibit to the
Registration Statement, upon the appropriate completion thereof, will be a
valid and binding instrument of the Company and each series of Debt Securities
will be duly authorized, valid and binding obligations of the Company and will
be entitled to the benefits of the Indenture, except as the United States
Bankruptcy Code (the "Code") may affect the validity of the lien of the
Indenture with respect to proceeds, products, rents, issues or profits of the
property subject to the lien of the Indenture realized, and additional property
acquired, within 90 days prior to and subsequent to the commencement of a case
with respect to the Company under the Code, except as enforcement of the
provisions of the Indenture may be limited by bankruptcy, insolvency or other
similar laws affecting the enforcement of creditors' rights generally, and
except as enforcement of provisions of the Indenture may be limited by the laws
of Illinois affecting the remedies for the enforcement of the security provided
for in the Indenture.

        5. Subject to the conditions set forth below, each series of New
Preferred will be validly issued, fully paid and non-assessable.

        The foregoing opinions are subject to the satisfaction of the following
conditions:





<PAGE>   3
Central Illinois Public Service Company
October 18, 1994
Page 3



                (a)   the due adoption by the Board of Directors of the Company,
        or the Executive Committee of such Board, of appropriate resolutions
        authorizing the execution and delivery of each New Supplemental
        Indenture and the execution, authentication, issuance and sale of each
        series of Debt Securities;

                (b)   the due adoption by the Board of Directors of the Company
        of (i) each Series Resolution (the preliminary form of which is filed as
        an exhibit to the Registration Statement) establishing a series of New
        Preferred, and the filing thereof, as required by law, and (ii) the
        appropriate resolutions authorizing the issuance and sale of each series
        of New Preferred.

                (c)   the issuance of an order by the Illinois Commerce
        Commission authorizing, approving or permitting the issuance and sale of
        the Securities by the Company on terms contemplated by the Registration
        Statement and the continued effectiveness of such order;

                (d)   the due execution and delivery of each New Supplemental
        Indenture by the parties thereto, in substantially the form of the
        proposed New Supplemental Indenture attached as Exhibit 4.02 to the
        Registration Statement, and the filing thereof for record as required by
        law; and

                (e)   the due execution of each series of Debt Securities by the
        Company, and the authentication thereof by the Trustee, in accordance
        with the terms of the Indenture; and the issuance and sale of each
        series of Debt Securities by the Company against receipt by it of the
        agreed consideration therefor and in accordance with such authorizations
        of the Board of Directors, or the Executive Committee of such Board, of
        the Company and with the order of the Illinois Commission referred to
        above.

                (f)   the due execution by the Company and the registration and
        countersignature by the Registrar of each series of New Preferred; and
        the issuance and sale of each series of New Preferred by the Company
        against receipt by it of the agreed consideration therefor and in
        accordance with such authorizations of the Board of





<PAGE>   4
Central Illinois Public Service Company
October 18, 1994
Page 4


        Directors of the Company and with the orders of the Illinois Commission
        referred to above.

        For purposes of this opinion, we express no opinion with respect to the
requirements of any state securities or "blue sky" laws.  Furthermore, we
express no opinion as to the title of the Company to any property or as to the
priority or perfection of the liens or security interests created, or intended
or purported to be created, by the Indenture.

        We have prepared or reviewed the statements as to matters of law or
legal conclusions with respect to the jurisdiction of certain regulatory
commissions expressed under Item 1, "Business -- Regulation" in
the Company's Annual Report on Form 10-K for the year ended December 31, 1993,
which is incorporated by reference in the Prospectus which is a part of the
Registration Statement.  We are of the opinion that all such statements as to
such matters are correct and we hereby consent to the use of such statements in
the Registration Statement and to the use of our name in connection therewith.

        We hereby consent to the filing of this opinion as Exhibit 5 to the
Registration Statement and to the reference to us under the caption "Legal
Opinions" in the Prospectus which is a part of the Registration Statement.


                                     Very truly yours,



                                     Jones, Day, Reavis & Pogue






<PAGE>   1


                                                                      Exhibit 12

                    CENTRAL ILLINOIS PUBLIC SERVICE COMPANY

               COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
         PLUS PREFERRED STOCK DIVIDEND REQUIREMENTS BEFORE INCOME TAXES
                                 (in thousands)



<TABLE>
<CAPTION>
                                                                          12 Months Ended                         
                                                  ----------------------------------------------------------------
                                                                            December 31,
                                                  August 31,   ----------------------------------------------------
                                                     1994        1993      1992        1991       1990        1989  
                                                  ----------   --------  --------    --------   --------    --------
<S>                                               <C>          <C>      <C>          <C>        <C>         <C>
Net income. . . . . . . . . . . . . . . . . . .   $ 82,689     $ 84,011  $ 72,601    $ 75,683   $ 71,562    $ 71,222

Add--Federal and state income taxes:
  Current . . . . . . . . . . . . . . . . . . .     56,990       50,441     6,110      36,316     39,380      45,464
  Deferred (net). . . . . . . . . . . . . . . .     (6,078)       1,674    33,998       7,573     (2,964)     (2,774)
  Investment tax credit amortization. . . . . .     (3,367)      (3,366)   (3,336)     (3,464)    (3,306)     (3,288)
  Income tax applicable to nonoperating
    activities. . . . . . . . . . . . . . . . .        858          631     2,989       2,413      2,986       3,246
  Income tax applicable to provision
    for prior period revenue refunds. . . . . .          -            -         -           -          -      (7,465)         
                                                   -------      -------   -------     -------    -------     -------          
                                                    48,403       49,380    39,761      42,838     36,096      35,183
                                                   -------      -------   -------     -------    -------     -------
Net income before income taxes. . . . . . . . .    131,092      133,391   112,362     118,521    107,658     106,405
                                                   -------      -------   -------     -------    -------     -------

Add--Fixed charges
  Interest on long-term debt. . . . . . . . . .     31,463       32,823    35,534      36,652     36,589      36,604
  Interest on provision for revenue refunds . .          -            -      (803)      4,261      3,396       3,432
  Other interest. . . . . . . . . . . . . . . .         97          479       392       1,231      1,070       1,052
  Amortization of net debt premium and
    discount. . . . . . . . . . . . . . . . . .      1,686        1,598       863         338        326         290
                                                   -------      -------   -------     -------    -------     -------
                                                    33,246       34,900    35,986      42,482     41,381      41,378
                                                   -------      -------   -------     -------    -------     -------
Earnings as defined . . . . . . . . . . . . . .   $164,338     $168,291  $148,348    $161,003   $149,039    $147,783
                                                   =======      =======   =======     =======    =======     =======

Ratio of earnings to fixed charges. . . . . . .        4.94        4.82      4.12        3.79       3.60        3.57

Earnings required for preferred dividends:
  Preferred stock dividends . . . . . . . . . .   $  3,486     $  3,718  $  4,549    $  5,396   $  5,617    $  5,856
  Adjustment to pre-tax basis*. . . . . . . . .      2,041        2,185     2,491       3,054      2,833       2,893
                                                   -------      -------   -------     -------    -------     -------
                                                  $  5,527     $  5,903  $  7,040    $  8,450   $  8,450    $  8,749
                                                   -------      -------   -------     -------    -------     -------
Fixed charges plus preferred stock
  dividend requirements . . . . . . . . . . . .   $ 38,773     $ 40,803  $ 43,026    $ 50,932   $ 49,831    $ 50,127
                                                   =======      =======   =======     =======    =======     =======

Ratio of earnings to fixed charges plus
  preferred stock dividend requirements . . . .       4.24         4.12      3.45        3.16       2.99        2.95
</TABLE>



* An additional charge equivalent to earnings required to
  adjust dividends on preferred stock to a pre-tax basis.
  (See below.)


[ Net income before income taxes         ]
[ ------------------------------    -100 ] X preferred dividends = earnings
                                             required for preferred dividends
[           Net income                   ]






<PAGE>   1

                                                                   Exhibit 23.02



                        Sorling, Northrup, Hanna, Cullen
                               and Cochran, Ltd.
                                Attorneys at Law
                              Suite Eight Hundred
                               Illinois Building
                             607 East Adams Street
                              Post Office Box 5131
                          Springfield, Illinois 62705
                                 Area Code 217
                               Telephone 544-1144



Central Illinois Public Service Company
607 East Adams Street
Springfield, Illinois  62379


Re:     Securities and Exchange Commission
        Form S-3 Registration Statement   


        We have prepared or reviewed the statements as to matter of law or legal
conclusions relating to Central Illinois Public Service Company's First Mortgage
Bonds expressed under "Description of Debt Securities -- Security" in the
Prospectus which is part of the accompanying Registration Statement.  We are of
the opinion that all such statements as to such matters are correct and we
hereby consent to the making of such statements and to the use of our name in
connection therewith.


                                            SORLING, NORTHRUP, HANNA, CULLEN AND
                                            COCHRAN, LTD.



                                            By:  C. Clark Germann
                                                ---------------------
Springfield, Illinois

Date:  October 18, 1994






<PAGE>   1





                                                                   Exhibit 23.03





                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


As independent public accountants, we hereby consent to the incorporation by
reference in this registration statement of our report dated January 28, 1994,
included in Central Illinois Public Service Company's Form 10-K for the year
ended December 31, 1993, and to all references to our firm included in this
registration statement.


                                            ARTHUR ANDERSEN LLP


Chicago, Illinois,
October 18, 1994






<PAGE>   1



                                                                      Exhibit 24

                               POWER OF ATTORNEY



        The undersigned, as a director of Central Illinois Public Service
Company, does hereby constitute and appoint C. L. Greenwalt and R. W. Jackson,
and each of them, his or her true and lawful attorneys and agents, each with
full power and authority (acting alone and without the other) to execute in the
name and on behalf of the undersigned, in such capacity, any Registration
Statement, or amendment (including post-effective amendments) thereto, relating
to the registration thereunder of not to exceed $50,000,000, in any combination
of Central Illinois Public Service Company Medium-Term Notes, in one or more
series, First Mortgage Bonds, in one or more series, or Cumulative Preferred
Stock, Par Value $100 Per Share, in one or more series, to be filed under the
Securities Act of 1933, as amended; hereby granting to such attorneys and
agents, and each of them, full power of substitution and revocation in the
premises; and hereby ratifying and confirming all that such attorneys and
agents, or either of them, may do or cause to be done by virtue of this Power of
Attorney.

        IN WITNESS WHEREOF, I have hereunto set my hand this 4th day of October,
1994.




                                                 /s/William J. Alley        
                                                 -------------------------
                                                  William J. Alley



Subscribed and sworn to
before me this 4th day of
October, 1994.




   /s/Janet K. Cooper      
- -------------------------
     Notary Public

My commission expires:

March 27, 1995





<PAGE>   2


                               POWER OF ATTORNEY



        The undersigned, as a director of Central Illinois Public Service
Company, does hereby constitute and appoint C. L. Greenwalt and R. W. Jackson,
and each of them, his or her true and lawful attorneys and agents, each with
full power and authority (acting alone and without the other) to execute in the
name and on behalf of the undersigned, in such capacity, any Registration
Statement, or amendment (including post-effective amendments) thereto, relating
to the registration thereunder of not to exceed $50,000,000, in any combination
of Central Illinois Public Service Company Medium-Term Notes, in one or more
series, First Mortgage Bonds, in one or more series, or Cumulative Preferred
Stock, Par Value $100 Per Share, in one or more series, to be filed under the
Securities Act of 1933, as amended; hereby granting to such attorneys and
agents, and each of them, full power of substitution and revocation in the
premises; and hereby ratifying and confirming all that such attorneys and
agents, or either of them, may do or cause to be done by virtue of this Power of
Attorney.

        IN WITNESS WHEREOF, I have hereunto set my hand this 4th day of October,
1994.




                                                 /s/John L. Heath        
                                                --------------------
                                                  John L. Heath



Subscribed and sworn to
before me this 4th day of
October, 1994.




   /s/Janet K. Cooper      
  --------------------
     Notary Public

My commission expires:

March 27, 1995





<PAGE>   3


                               POWER OF ATTORNEY



        The undersigned, as a director of Central Illinois Public Service
Company, does hereby constitute and appoint C. L. Greenwalt and R. W. Jackson,
and each of them, his or her true and lawful attorneys and agents, each with
full power and authority (acting alone and without the other) to execute in the
name and on behalf of the undersigned, in such capacity, any Registration
Statement, or amendment (including post-effective amendments) thereto, relating
to the registration thereunder of not to exceed $50,000,000, in any combination
of Central Illinois Public Service Company Medium-Term Notes, in one or more
series, First Mortgage Bonds, in one or more series, or Cumulative Preferred
Stock, Par Value $100 Per Share, in one or more series, to be filed under the
Securities Act of 1933, as amended; hereby granting to such attorneys and
agents, and each of them, full power of substitution and revocation in the
premises; and hereby ratifying and confirming all that such attorneys and
agents, or either of them, may do or cause to be done by virtue of this Power of
Attorney.

        IN WITNESS WHEREOF, I have hereunto set my hand this 4th day of October,
1994.




                                                 /s/Gordon R. Lohman        
                                                ---------------------
                                                  Gordon R. Lohman



Subscribed and sworn to
before me this 4th day of
October, 1994.




   /s/Janet K. Cooper      
- ----------------------
     Notary Public

My commission expires:

March 27, 1995





<PAGE>   4





                               POWER OF ATTORNEY



        The undersigned, as a director of Central Illinois Public Service
Company, does hereby constitute and appoint C. L. Greenwalt and R. W. Jackson,
and each of them, his or her true and lawful attorneys and agents, each with
full power and authority (acting alone and without the other) to execute in the
name and on behalf of the undersigned, in such capacity, any Registration
Statement, or amendment (including post-effective amendments) thereto, relating
to the registration thereunder of not to exceed $50,000,000, in any combination
of Central Illinois Public Service Company Medium-Term Notes, in one or more
series, First Mortgage Bonds, in one or more series, or Cumulative Preferred
Stock, Par Value $100 Per Share, in one or more series, to be filed under the
Securities Act of 1933, as amended; hereby granting to such attorneys and
agents, and each of them, full power of substitution and revocation in the
premises; and hereby ratifying and confirming all that such attorneys and
agents, or either of them, may do or cause to be done by virtue of this Power of
Attorney.

        IN WITNESS WHEREOF, I have hereunto set my hand this 4th day of October,
1994.



                                                 /s/Hanne M. Merriman        
                                                 ---------------------
                                                  Hanne M. Merriman



Subscribed and sworn to
before me this 4th day of
October, 1994.




   /s/Janet K. Cooper      
    --------------------
     Notary Public

My commission expires:

March 27, 1995





<PAGE>   5





                               POWER OF ATTORNEY



        The undersigned, as a director of Central Illinois Public Service
Company, does hereby constitute and appoint C. L. Greenwalt and R. W. Jackson,
and each of them, his or her true and lawful attorneys and agents, each with
full power and authority (acting alone and without the other) to execute in the
name and on behalf of the undersigned, in such capacity, any Registration
Statement, or amendment (including post-effective amendments) thereto, relating
to the registration thereunder of not to exceed $50,000,000, in any combination
of Central Illinois Public Service Company Medium-Term Notes, in one or more
series, First Mortgage Bonds, in one or more series, or Cumulative Preferred
Stock, Par Value $100 Per Share, in one or more series, to be filed under the
Securities Act of 1933, as amended; hereby granting to such attorneys and
agents, and each of them, full power of substitution and revocation in the
premises; and hereby ratifying and confirming all that such attorneys and
agents, or either of them, may do or cause to be done by virtue of this Power of
Attorney.

        IN WITNESS WHEREOF, I have hereunto set my hand this 4th day of October,
1994.




                                                 /s/Donald G. Raymer        
                                                  ---------------------
                                                  Donald G. Raymer


Subscribed and sworn to
before me this 4th day of
October, 1994.




   /s/Janet K. Cooper      
- ------------------------
     Notary Public

My commission expires:

March 27, 1995





<PAGE>   6



                               POWER OF ATTORNEY



        The undersigned, as a director of Central Illinois Public Service
Company, does hereby constitute and appoint C. L. Greenwalt and R. W. Jackson,
and each of them, his or her true and lawful attorneys and agents, each with
full power and authority (acting alone and without the other) to execute in the
name and on behalf of the undersigned, in such capacity, any Registration
Statement, or amendment (including post-effective amendments) thereto, relating
to the registration thereunder of not to exceed $50,000,000, in any combination
of Central Illinois Public Service Company Medium-Term Notes, in one or more
series, First Mortgage Bonds, in one or more series, or Cumulative Preferred
Stock, Par Value $100 Per Share, in one or more series, to be filed under the
Securities Act of 1933, as amended; hereby granting to such attorneys and
agents, and each of them, full power of substitution and revocation in the
premises; and hereby ratifying and confirming all that such attorneys and
agents, or either of them, may do or cause to be done by virtue of this Power of
Attorney.

        IN WITNESS WHEREOF, I have hereunto set my hand this 4th day of October,
1994.




                                                 /s/Thomas L. Shade        
                                                  --------------------
                                                  Thomas L. Shade



Subscribed and sworn to
before me this 4th day of
October, 1994.




   /s/Janet K. Cooper      
- ------------------------
     Notary Public

My commission expires:

March 27, 1995





<PAGE>   7



                               POWER OF ATTORNEY



        The undersigned, as a director of Central Illinois Public Service
Company, does hereby constitute and appoint C. L. Greenwalt and R. W. Jackson,
and each of them, his or her true and lawful attorneys and agents, each with
full power and authority (acting alone and without the other) to execute in the
name and on behalf of the undersigned, in such capacity, any Registration
Statement, or amendment (including post-effective amendments) thereto, relating
to the registration thereunder of not to exceed $50,000,000, in any combination
of Central Illinois Public Service Company Medium-Term Notes, in one or more
series, First Mortgage Bonds, in one or more series, or Cumulative Preferred
Stock, Par Value $100 Per Share, in one or more series, to be filed under the
Securities Act of 1933, as amended; hereby granting to such attorneys and
agents, and each of them, full power of substitution and revocation in the
premises; and hereby ratifying and confirming all that such attorneys and
agents, or either of them, may do or cause to be done by virtue of this Power of
Attorney.

        IN WITNESS WHEREOF, I have hereunto set my hand this 4th day of October,
1994.




                                                 /s/James W. Wogsland        
                                                  -------------------
                                                  James W. Wogsland



Subscribed and sworn to
before me this 4th day of
October, 1994.




   /s/Janet K. Cooper      
- -----------------------
     Notary Public

My commission expires:


March 27, 1995






<PAGE>   1

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                                                     EXHIBIT 25 

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                            ------------------------
                                    FORM T-1
                            STATEMENT OF ELIGIBILITY
                   UNDER THE TRUST INDENTURE ACT OF 1939 OF A
                    CORPORATION DESIGNATED TO ACT AS TRUSTEE
 
                      CHECK IF AN APPLICATION TO DETERMINE
                  ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION
                           305(B)(2) ______________
 
                            ------------------------
 
                            BANK OF AMERICA ILLINOIS
              (EXACT NAME OF TRUSTEE AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                           <C>
                   ILLINOIS                                     36-0947896
      (JURISDICTION OF INCORPORATION OR                      (I.R.S. EMPLOYER
  ORGANIZATION IF NOT A U.S. NATIONAL BANK)                IDENTIFICATION NO.)
 231 SOUTH LASALLE STREET, CHICAGO, ILLINOIS                      60697
   (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                     (ZIP CODE)
</TABLE>
 
                            ------------------------
                    CENTRAL ILLINOIS PUBLIC SERVICE COMPANY
              (EXACT NAME OF OBLIGOR AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                             <C>
                  ILLINOIS                                       37-0211380
        (STATE OR OTHER JURISDICTION                          (I.R.S. EMPLOYER
      OF INCORPORATION OR ORGANIZATION)                      IDENTIFICATION NO.)
            607 EAST ADAMS STREET                                   62739
            SPRINGFIELD, ILLINOIS                                (ZIP CODE)
  (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)
</TABLE>
 
                              FIRST MORTGAGE BONDS
                        (TITLE OF INDENTURE SECURITIES)
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   2
 
ITEM 1. GENERAL INFORMATION.
 
          FURNISH THE FOLLOWING INFORMATION AS TO THE TRUSTEE:
 
     (A) NAME AND ADDRESS OF EACH EXAMINING OR SUPERVISING AUTHORITY TO WHICH IT
         IS SUBJECT.
 
             Commissioner of Banks and Trust Companies, State of Illinois,
             Springfield, Illinois.
 
             Chicago Clearing House Association, 164 W. Jackson Boulevard,
             Chicago, Illinois.
 
             Federal Deposit Insurance Corporation, Washington, D.C.
 
             The Board of Governors of the Federal Reserve System, Washington,
             D.C.
 
     (B) WHETHER IT IS AUTHORIZED TO EXERCISE CORPORATE TRUST POWERS.
 
         Yes.
 
ITEM 2. AFFILIATIONS WITH THE OBLIGOR.
 
          IF THE OBLIGOR IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH SUCH
          AFFILIATION.
 
             The obligor is not an affiliate of the trustee.
 
ITEM 3. VOTING SECURITIES OF THE TRUSTEE.
 
          FURNISH THE FOLLOWING INFORMATION AS TO EACH CLASS OF VOTING
          SECURITIES OF THE TRUSTEES:
 
                             AS OF OCTOBER 6, 1994
 
<TABLE>
<CAPTION>
                                                       COL. B
                     COL. A                            AMOUNT
                 TITLE OF CLASS                      OUTSTANDING
- -------------------------------------------------    -----------
<S>                                                  <C>
</TABLE>
 
             Not applicable by virtue of response to Item 13.
 
ITEM 4. TRUSTEESHIPS UNDER OTHER INDENTURES.
 
          IF THE TRUSTEE IS A TRUSTEE UNDER ANOTHER INDENTURE UNDER WHICH ANY
     OTHER SECURITIES, OR CERTIFICATES OF INTEREST OR PARTICIPATION IN ANY OTHER
     SECURITIES, OF THE OBLIGOR ARE OUTSTANDING, FURNISH THE FOLLOWING
     INFORMATION:
 
     (A) TITLE OF THE SECURITIES OUTSTANDING UNDER EACH SUCH OTHER INDENTURE.
 
             Not applicable by virtue of response to Item 13.
 
     (B) A BRIEF STATEMENT OF THE FACTS RELIED UPON AS A BASIS FOR THE CLAIM
         THAT NO CONFLICTING INTEREST WITHIN THE MEANING OF SECTION 310(B)(1) OF
         THE ACT ARISES AS A RESULT OF THE TRUSTEESHIP UNDER ANY SUCH OTHER
         INDENTURE, INCLUDING A STATEMENT AS TO HOW THE INDENTURE SECURITIES
         WILL RANK AS COMPARED WITH THE SECURITIES ISSUED UNDER SUCH OTHER
         INDENTURE.
 
             Not applicable by virtue of response to Item 13.
 
ITEM 5. INTERLOCKING DIRECTORATES AND SIMILAR RELATIONSHIPS WITH THE OBLIGOR OR
        UNDERWRITERS.
 
          IF THE TRUSTEE OR ANY OF THE DIRECTORS OR EXECUTIVE OFFICERS OF THE
     TRUSTEE IS A DIRECTOR, OFFICER, PARTNER, EMPLOYEE, APPOINTEE, OR
     REPRESENTATIVE OF THE OBLIGOR OR OF ANY UNDERWRITER FOR THE OBLIGOR,
     IDENTIFY EACH SUCH PERSON HAVING ANY SUCH CONNECTION AND STATE THE NATURE
     OF EACH SUCH CONNECTION.
 
          Not applicable by virtue of response to Item 13.
 
                                        1
<PAGE>   3
 
ITEM 6. VOTING SECURITIES OF THE TRUSTEE OWNED BY THE OBLIGOR OR ITS OFFICIALS.
 
          FURNISH THE FOLLOWING INFORMATION AS TO THE VOTING SECURITIES OF THE
     TRUSTEE OWNED BENEFICIALLY BY THE OBLIGOR AND EACH DIRECTOR, PARTNER AND
     EXECUTIVE OFFICER OF THE OBLIGOR.
 
                             AS OF OCTOBER 6, 1994
 
<TABLE>
<CAPTION>
           
           COL. A            COL. B                      COL. C                       COL. D
                                                                                       PERCENTAGE OF
                                                                                     VOTING SECURITIES
                                                                                      REPRESENTED BY
          NAME OF                                         AMOUNT OWNED                 AMOUNT GIVEN
            OWNER            TITLE OF CLASS               BENEFICIALLY                   IN COL. C
        ------------         --------------               ------------               -----------------
        <S>                  <C>                          <C>                        <C>
</TABLE>
 
          Not applicable by virtue of response to Item 13.
 
ITEM 7. VOTING SECURITIES OF THE TRUSTEE OWNED BY UNDERWRITERS OR THEIR
OFFICIALS.
 
          FURNISH THE FOLLOWING INFORMATION AS TO THE VOTING SECURITIES OF THE
     TRUSTEE OWNED BENEFICIALLY BY EACH UNDERWRITER FOR THE OBLIGOR AND EACH
     DIRECTOR, PARTNER, AND EXECUTIVE OFFICER OF EACH SUCH UNDERWRITER.
 
                             AS OF OCTOBER 6, 1994
 
<TABLE>
<CAPTION>
           
           COL. A            COL. B                      COL. C                       COL. D
                                                                                       PERCENTAGE OF
                                                                                     VOTING SECURITIES
                                                                                      REPRESENTED BY
          NAME OF                                         AMOUNT OWNED                 AMOUNT GIVEN
            OWNER            TITLE OF CLASS               BENEFICIALLY                   IN COL. C
        ------------         --------------               ------------               -----------------
        <S>                  <C>                          <C>                        <C>
</TABLE>
 
          Not applicable by virtue of response to Item 13.
 
ITEM 8. SECURITIES OF THE OBLIGOR OWNED OR HELD BY THE TRUSTEE.
 
          FURNISH THE FOLLOWING INFORMATION AS TO SECURITIES OF THE OBLIGOR
     OWNED BENEFICIALLY OR HELD AS COLLATERAL SECURITY FOR OBLIGATIONS IN
     DEFAULT BY THE TRUSTEE:
 
                             AS OF OCTOBER 6, 1994
 
<TABLE>
<CAPTION>
   COL. A              COL. B                             COL. C                                 COL. D
                     WHETHER THE                          
                     SECURITIES
                     ARE VOTING
                         OR                    AMOUNT OWNED BENEFICIALLY OR                 PERCENT OF CLASS
  TITLE OF            NONVOTING                HELD AS COLLATERAL SECURITY                REPRESENTED BY AMOUNT
    CLASS            SECURITIES                 FOR OBLIGATIONS IN DEFAULT                   GIVEN IN COL. C
- ------------         -----------               ----------------------------               ---------------------
<S>                  <C>                       <C>                                        <C>
</TABLE>
 
          Not applicable by virtue of response to Item 13.
 
                                        2
<PAGE>   4
 
ITEM 9. SECURITIES OF UNDERWRITERS OWNED OR HELD BY THE TRUSTEE.
 
          IF THE TRUSTEE OWNS BENEFICIALLY OR HOLDS AS COLLATERAL SECURITY FOR
     OBLIGATIONS IN DEFAULT ANY SECURITIES OF AN UNDERWRITER FOR THE OBLIGOR,
     FURNISH THE FOLLOWING INFORMATION AS TO EACH CLASS OF SECURITIES OF SUCH
     UNDERWRITER ANY OF WHICH ARE SO OWNED OR HELD BY THE TRUSTEE.
 
                             AS OF OCTOBER 6, 1994
 
<TABLE>
<CAPTION>
    
    COL. A             COL. B                             COL. C                                  COL. D
NAME OF ISSUER                                   AMOUNT OWNED BENEFICIALLY OR                  PERCENT OF CLASS
       AND               AMOUNT                 HELD AS COLLATERAL SECURITY FOR              REPRESENTED BY AMOUNT
TITLE OF CLASS         OUTSTANDING             OBLIGATIONS IN DEFAULT BY TRUSTEE                GIVEN IN COL. C
- ---------------        -----------             ---------------------------------             ---------------------
<S>                    <C>                     <C>                                           <C>
</TABLE>
 
          Not applicable by virtue of response to Item 13.
 
ITEM 10. OWNERSHIP OR HOLDINGS BY THE TRUSTEE OF VOTING SECURITIES OF CERTAIN
         AFFILIATES OR SECURITY HOLDERS OF THE OBLIGOR.
 
          IF THE TRUSTEE OWNS BENEFICIALLY OR HOLDS AS COLLATERAL SECURITY FOR
     OBLIGATIONS IN DEFAULT VOTING SECURITIES OF A PERSON WHO, TO THE KNOWLEDGE
     OF THE TRUSTEE (1) OWNS 10 PERCENT OR MORE OF THE VOTING SECURITIES OF THE
     OBLIGOR OR (2) IS AN AFFILIATE, OTHER THAN A SUBSIDIARY, OF THE OBLIGOR,
     FURNISH THE FOLLOWING INFORMATION AS TO THE VOTING SECURITIES OF SUCH
     PERSON.
 
                             AS OF OCTOBER 6, 1994
 
<TABLE>
<CAPTION>
    
    COL. A              COL. B                             COL. C                                  COL. D
NAME OF ISSUER                                   AMOUNT OWNED BENEFICIALLY OR                  PERCENT OF CLASS
       AND               AMOUNT                 HELD AS COLLATERAL SECURITY FOR              REPRESENTED BY AMOUNT
TITLE OF CLASS         OUTSTANDING             OBLIGATIONS IN DEFAULT BY TRUSTEE                GIVEN IN COL. C
- ---------------        -----------             ---------------------------------             ---------------------
<S>                    <C>                     <C>                                           <C>
</TABLE>
 
          Not applicable by virtue of response to Item 13.
 
ITEM 11. OWNERSHIP OR HOLDINGS BY THE TRUSTEE OF ANY SECURITIES OF A PERSON
         OWNING 50 PERCENT OR MORE OF THE VOTING SECURITIES OF THE OBLIGOR.
 
          IF THE TRUSTEE OWNS BENEFICIALLY OR HOLDS AS COLLATERAL SECURITY FOR
     OBLIGATIONS IN DEFAULT ANY SECURITIES OF A PERSON WHO, TO THE KNOWLEDGE OF
     THE TRUSTEE, OWNS 50 PERCENT OR MORE OF THE VOTING SECURITIES OF THE
     OBLIGOR, FURNISH THE FOLLOWING INFORMATION AS TO EACH CLASS OF SECURITIES
     OF SUCH PERSON ANY OF WHICH ARE SO OWNED OR HELD BY THE TRUSTEE.
 
                             AS OF OCTOBER 6, 1994
 
<TABLE>
<CAPTION>
    
    COL. A              COL. B                             COL. C                                  COL. D
NAME OF ISSUER                                   AMOUNT OWNED BENEFICIALLY OR                  PERCENT OF CLASS
       AND               AMOUNT                 HELD AS COLLATERAL SECURITY FOR              REPRESENTED BY AMOUNT
TITLE OF CLASS         OUTSTANDING             OBLIGATIONS IN DEFAULT BY TRUSTEE                GIVEN IN COL. C
- ---------------        -----------             ---------------------------------             ---------------------
<S>                    <C>                     <C>                                           <C>
</TABLE>
 
          Not applicable by virtue of response to Item 13.
 
                                        3
<PAGE>   5
 
ITEM 12. INDEBTEDNESS OF THE OBLIGOR TO THE TRUSTEE.
 
          EXCEPT AS NOTED IN THE INSTRUCTIONS, IF THE OBLIGOR IS INDEBTED TO THE
     TRUSTEE, FURNISH THE FOLLOWING INFORMATION:
 
                              AS OF MARCH 10, 1993
 
<TABLE>
<CAPTION>
        COL. A                   COL. B            COL. C
NATURE OF INDEBTEDNESS     AMOUNT OUTSTANDING     DATE DUE
- ----------------------     ------------------     --------
<S>                        <C>                    <C>
</TABLE>
 
             Not applicable by virtue of response to Item 13.
 
ITEM 13. DEFAULTS BY THE OBLIGOR.
 
          (A) STATE WHETHER THERE IS OR HAS BEEN A DEFAULT WITH RESPECT TO THE
     SECURITIES UNDER THIS INDENTURE. EXPLAIN THE NATURE OF ANY SUCH DEFAULT.
 
             There is not nor has there been a default with respect to the
        securities under this indenture.
 
          (B) IF THE TRUSTEE IS A TRUSTEE UNDER ANOTHER INDENTURE UNDER WHICH
     ANY OTHER SECURITIES, OR CERTIFICATES OF INTEREST OR PARTICIPATION IN ANY
     OTHER SECURITIES, OF THE OBLIGOR ARE OUTSTANDING, OR IS TRUSTEE FOR MORE
     THAN ONE OUTSTANDING SERIES OF SECURITIES UNDER THE INDENTURE, STATE
     WHETHER THERE HAS BEEN A DEFAULT UNDER ANY SUCH INDENTURE OR SERIES,
     IDENTIFY THE INDENTURE OR SERIES AFFECTED, AND EXPLAIN THE NATURE OF ANY
     SUCH DEFAULT.
 
             There is not nor has there been a default with respect to
        securities outstanding under this indenture. The trustee is a trustee
        under any another indenture under which any other securities of the
        obligor are outstanding. There is not nor has there been a default with
        respect to the securities outstanding under such other indenture.
 
ITEM 14. AFFILIATIONS WITH THE UNDERWRITERS.
 
          IF ANY UNDERWRITER IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH SUCH
     AFFILIATION.
 
             Not applicable by virtue of response to Item 13.
 
ITEM 15. FOREIGN TRUSTEE.
 
          IDENTIFY THE ORDER OR RULE PURSUANT TO WHICH THE FOREIGN TRUSTEE IS
     AUTHORIZED TO ACT AS SOLE TRUSTEE UNDER INDENTURES QUALIFIED OR TO BE
     QUALIFIED UNDER THE ACT.
 
             Not applicable.
 
ITEM 16. LIST OF EXHIBITS.
 
          LIST BELOW ALL EXHIBITS FILED AS A PART OF THIS STATEMENT OF
     ELIGIBILITY.
 
             1. A copy of the certification by the Illinois Commissioner of
        Banks and Trust Companies of Bank of America Illinois' Charter and
        Certificate of Conversion, incorporated herein by reference to Exhibit 1
        to T-1; Registration No. 33-81660.
 
             2. A copy of the certification by the Illinois Commissioner of
        Banks and Trust Companies of Bank of America Illinois' Charter and
        Certificate of Conversion, incorporated herein by reference to Exhibit 1
        to T-1; Registration No. 33-81660, includes the authority of the trustee
        to commence business.
 
             3. A copy of the certificate of authority for Bank of America
        Illinois to engage in trust activities issued by the Illinois
        Commissioner of Banks and Trust Companies, incorporated herein by
        reference to Exhibit 3 to T-1; Registration No. 33-81660.
 
                                        4
<PAGE>   6
 
             4. A copy of the existing By-laws of Bank of America Illinois as
        now in effect, incorporated herein by reference to Exhibit 4 to T-1;
        Registration No. 33-55043.
 
             5. Not applicable.
 
             6. The consent of the trustee required by Section 321(b) of the
        Trust Indenture Act of 1939, incorporated herein by reference to Exhibit
        6 to T-1; Registration No. 33-81660.
 
             7. A copy of the latest report of condition of the trustee
        published pursuant to law or the requirements of its supervising or
        examining authority, filed herewith.
 
             8. Not applicable.
 
             9. Not applicable.
 
                                   SIGNATURE
 
PURSUANT TO THE REQUIREMENTS OF THE TRUST INDENTURE ACT OF 1939, THE TRUSTEE,
BANK OF AMERICA ILLINOIS, AN ILLINOIS BANKING CORPORATION ORGANIZED AND EXISTING
UNDER THE LAWS OF THE STATE OF ILLINOIS, HAS DULY CAUSED THIS STATEMENT OF
ELIGIBILITY TO BE SIGNED ON ITS BEHALF BY THE UNDERSIGNED, THEREUNTO DULY
AUTHORIZED, ALL IN THE CITY OF CHICAGO, AND STATE OF ILLINOIS, ON THE 6TH DAY OF
OCTOBER, 1994.
 
                                            BANK OF AMERICA ILLINOIS
 
                                            By         /s/  K.L. CLARK
                                             -----------------------------------
                                                         K.L. Clark
                                                       Trust Officer
 
                                        5
<PAGE>   7
                                                                  EXHIBIT 7



                            (OFFICIAL PUBLICATION)

                     CONSOLIDATED REPORT OF CONDITION OF

                               CONTINENTAL BANK

                             of Chicago, Illinois

                    AND FOREIGN AND DOMESTIC SUBSIDIARIES

A member of the Federal Reserve System, at the close of business on June 30,
1994, published in accordance with a call made by the Federal Reserve Bank of
this District pursuant to the provisions of the Federal Reserve Act.


<TABLE>
<CAPTION>
                                                                                           IN MILLIONS
<S>                                                                                       <C>
                                            ASSETS

Cash and balances due from depository institutions:
  Noninterest-bearing balances and currency
    and coin .........................................................................      $ 1,833
  Interest-bearing balances ..........................................................        1,518
Securities
  Held-to-maturity securities ........................................................          454
  Available-for-sale securities ......................................................        1,161
Federal funds sold and securities purchased under agreements to resell in domestic
offices of the bank and of its Edge and Agreement subsidiaries, and in IBFs:
  Federal funds sold .................................................................          429
  Securities purchased under agreements to resell ....................................          704
Loans and lease financing receivables:
  Loans and leases, net of unearned income .................................. $12,009
  LESS: Allowance for loan and lease losses .................................     312
  LESS: Allocated transfer risk reserve .......................................     0
  Loans and leases, net of unearned income,
  allowance, and reserve .............................................................       11,697
Assets held in trading accounts ......................................................        1,539
Premises and fixed assets (including capitalized leases) .............................          236
Other real estate owned ..............................................................          191
Investments in unconsolidated subsidiaries and associated companies ..................            0
Customers' liability to this bank on acceptances outstanding .........................           92
Intangible assets ....................................................................            0
Other assets .........................................................................        1,455
                                                                                            -------
  TOTAL ASSETS .......................................................................      $21,309
                                                                                            =======

                                             LIABILITIES

Deposits:
  In domestic offices .................................................................     $ 8,771
  Noninterest-bearing ...................................................  $2,689
  Interest-bearing ......................................................   6,082
In foreign offices, Edge and Agreement subsidiaries, and IBFs .........................       4,408
  Noninterest-bearing ...................................................  $   61
  Interest-bearing ......................................................   4,347
Federal funds purchased and securities sold under agreements to repurchase in
domestic offices of the bank and of its Edge and Agreement subsidiaries, and in IBFs:
  Federal funds purchased ..............................................................        475
  Securities sold under agreements to repurchase .......................................        224
Demand notes issued to the U.S. Treasury ...............................................      1,300
Trading liabilities ....................................................................        984
Other borrowed money:
  With original maturity of one year or less ...........................................      1,665
  With original maturity of more than one year .........................................         38
Mortgage indebtedness and obligations under capitalized leases .........................          0
Bank's liability on acceptances executed and outstanding ...............................         92
Subordinated notes and debentures ......................................................        398
Other liabilities ......................................................................        840
                                                                                            -------
  TOTAL LIABILITIES ....................................................................     19,195
                                                                                            -------
Limited-life preferred stock and related surplus .......................................          0

                                   EQUITY CAPITAL

Perpetual preferred stock and related surplus ..........................................          0
Common stock ...........................................................................        685
Surplus ................................................................................        827
Undivided profits and capital reserves .................................................        630
  Net unrealized holding gains (losses) on available-for-sale securities ...............        (23)
Cumulative foreign currency translation adjustments ....................................         (5)
                                                                                            -------
  TOTAL EQUITY CAPITAL .................................................................      2,114
                                                                                            -------
  TOTAL LIABILITIES, LIMITED-LIFE PREFERRED STOCK,
  AND EQUITY CAPITAL ...................................................................    $21,309
                                                                                            =======


</TABLE>

I, John J. Higgins, Controller of the above-named bank do hereby declare that
this Report of Condition has been prepared in  conformance with the
instructions issued by the Board of Governors of the Federal Reserve System and
is true to the best of my knowledge and belief.


                                         /s/ John J. Higgins
                                         -------------------
                                              Controller

<PAGE>   8

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                                                     EXHIBIT 25 

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                            ------------------------
                                    FORM T-2
                   STATEMENT OF ELIGIBILITY AND QUALIFICATION
                    UNDER THE TRUST INDENTURE ACT OF 1939 OF
                   AN INDIVIDUAL DESIGNATED TO ACT AS TRUSTEE
 
                      CHECK IF AN APPLICATION TO DETERMINE
                  ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION
                           305(B)(2) _______________
 
                            ------------------------
 
<TABLE>
<S>                                           <C>
              ROBERT J. DONAHUE                                ###-##-####
              (NAME OF TRUSTEE)                          (SOCIAL SECURITY NUMBER)
           231 SOUTH LASALLE STREET
               CHICAGO ILLINOIS                                   60697
              (BUSINESS ADDRESS)                                (ZIP CODE)
</TABLE>
 
                            ------------------------
                    CENTRAL ILLINOIS PUBLIC SERVICE COMPANY
              (EXACT NAME OF OBLIGOR AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                             <C>
                  ILLINOIS                                       37-0211380
        (STATE OR OTHER JURISDICTION                          (I.R.S. EMPLOYER
      OF INCORPORATION OR ORGANIZATION)                      IDENTIFICATION NO.)
            607 EAST ADAMS STREET
            SPRINGFIELD, ILLINOIS                                   62739
  (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                       (ZIP CODE)
</TABLE>
 
                              FIRST MORTGAGE BONDS
                      (TITLE OF THE INDENTURE SECURITIES)
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   9
 
ITEM 1. AFFILIATIONS WITH THE OBLIGOR.
 
          IF THE OBLIGOR IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH SUCH
     AFFILIATION.
 
           None.
 
ITEM 2. TRUSTEESHIPS UNDER OTHER INDENTURES.
 
          IF THE TRUSTEE IS TRUSTEE UNDER ANOTHER INDENTURE UNDER WHICH ANY
     OTHER SECURITIES, OR CERTIFICATES OF INTEREST OR PARTICIPATION IN ANY OTHER
     SECURITIES, OF THE OBLIGOR ARE OUTSTANDING, FILE A COPY OF EACH SUCH
     INDENTURE AS AN EXHIBIT AND FURNISH THE FOLLOWING INFORMATION:
 
          (A) TITLE OF THE SECURITIES OUTSTANDING UNDER EACH SUCH OTHER
     INDENTURE.
 
             Not applicable by virtue of response to Item 9.
 
          (B) A BRIEF STATEMENT OF THE FACTS RELIED UPON BY THE TRUSTEE AS A
     BASIS FOR THE CLAIM THAT NO CONFLICTING INTEREST WITHIN THE MEANING OF
     SECTION 310(B)(1) OF THE ACT ARISES AS A RESULT OF THE TRUSTEESHIP UNDER
     SUCH OTHER INDENTURE, INCLUDING A STATEMENT AS TO HOW THE INDENTURE
     SECURITIES WILL RANK AS COMPARED WITH THE SECURITIES ISSUED UNDER SUCH
     OTHER INDENTURE.
 
             Not applicable by virtue of response to Item 9.
 
ITEM 3. CERTAIN RELATIONSHIPS BETWEEN THE TRUSTEE AND THE OBLIGOR OR AN
UNDERWRITER.
 
          IF THE TRUSTEE IS A DIRECTOR, OFFICER, PARTNER, EMPLOYEE, APPOINTEE OR
     REPRESENTATIVE OF THE OBLIGOR OR OF ANY UNDERWRITER FOR THE OBLIGOR, STATE
     THE NATURE OF EACH SUCH CONNECTION.
 
             Not applicable by virtue of response to Item 9.
 
ITEM 4. SECURITIES OF THE OBLIGOR OWNED OR HELD BY THE TRUSTEE.
 
          FURNISH THE FOLLOWING INFORMATION AS TO SECURITIES OF THE OBLIGOR
     OWNED BENEFICIALLY BY THE TRUSTEE OR HELD BY THE TRUSTEE AS COLLATERAL
     SECURITY FOR OBLIGATIONS IN DEFAULT.
 
                                OCTOBER 7, 1994
 
<TABLE>
<CAPTION>
   COL. A              COL. B                             COL. C                               COL. D 
                     WHETHER THE                          
                     SECURITIES
                     ARE VOTING                AMOUNT OWNED BENEFICIALLY OR                 PERCENT OF CLASS
  TITLE OF           OR NONVOTING               HELD AS COLLATERAL SECURITY                REPRESENTED BY AMOUNT
    CLASS            SECURITIES                 FOR OBLIGATIONS IN DEFAULT                   GIVEN IN COL. C
- ------------         -----------               ----------------------------               ---------------------
<S>                  <C>                       <C>                                        <C>
</TABLE>
 
             Not applicable by virtue of response of Item 9.
 
ITEM 5. SECURITIES OF UNDERWRITERS OWNED OR HELD BY THE TRUSTEE.
 
          IF THE TRUSTEE OWNS BENEFICIALLY OR HOLDS AS COLLATERAL SECURITY FOR
     OBLIGATIONS IN DEFAULT ANY SECURITIES OF AN UNDERWRITER FOR THE OBLIGOR,
     FURNISH THE FOLLOWING INFORMATION AS TO EACH CLASS OF SECURITIES OF SUCH
     UNDERWRITER ANY OF WHICH ARE SO OWNED OR HELD BY THE TRUSTEE.
 
                                        1
<PAGE>   10
 
                                OCTOBER 7, 1994
 
<TABLE>
<CAPTION>
      COL. A                COL. B                      COL. C                     COL. D
Q                                                                                PERCENTAGE OF
                                                                              VOTING SECURITIES
                                             AMOUNT OWNED BENEFICIALLY OR      REPRESENTED BY
NAME OF ISSUER AND          AMOUNT           HELD AS COLLATERAL SECURITY        AMOUNT GIVEN
  TITLE OF CLASS         OUTSTANDING          FOR OBLIGATIONS IN DEFAULT          IN COL. C
- ------------------    ------------------     ----------------------------     -----------------
<S>                   <C>                    <C>                              <C>
</TABLE>
 
             Not applicable by virtue of response to Item 9.
 
ITEM 6.HOLDINGS BY THE TRUSTEE OF VOTING SECURITIES OF CERTAIN AFFILIATES OR
       PRINCIPAL HOLDERS OF VOTING SECURITIES OF THE OBLIGOR.
 
          IF THE TRUSTEE OWNS BENEFICIALLY OR HOLDS AS COLLATERAL SECURITY FOR
     OBLIGATIONS IN DEFAULT VOTING SECURITIES OF A PERSON WHO, TO THE KNOWLEDGE
     OF THE TRUSTEE (1) OWNS 10 PERCENT OR MORE OF THE VOTING SECURITIES OF THE
     OBLIGOR OR (2) IS AN AFFILIATE, OTHER THAN A SUBSIDIARY, OF THE OBLIGOR,
     FURNISH THE FOLLOWING INFORMATION AS TO THE VOTING SECURITIES OF SUCH
     PERSON.
 
                                OCTOBER 7, 1994
 
<TABLE>
<CAPTION>
    COL. A               COL. B                             COL. C                                  COL. D
                                                 AMOUNT OWNED BENEFICIALLY OR                  PERCENT OF CLASS
NAME OF ISSUER AND       AMOUNT                   HELD AS COLLATERAL SECURITY                REPRESENTED BY AMOUNT
TITLE OF CLASS         OUTSTANDING                FOR OBLIGATIONS IN DEFAULT                    GIVEN IN COL. C
- ---------------        -----------             ---------------------------------             ---------------------
<S>                    <C>                     <C>                                           <C>
</TABLE>
 
             Not applicable by virtue of response to Item 9.
 
ITEM 7.HOLDINGS BY THE TRUSTEE OF ANY SECURITIES OF A PERSON OWNING 50 PERCENT
       OR MORE OF THE VOTING SECURITIES OF THE OBLIGOR.
 
          IF THE TRUSTEE OWNS BENEFICIALLY OR HOLDS AS COLLATERAL SECURITY FOR
     OBLIGATIONS IN DEFAULT ANY SECURITIES OF A PERSON WHO, TO THE KNOWLEDGE OF
     THE TRUSTEE, OWNS 50 PERCENT OR MORE OF THE VOTING SECURITIES OF THE
     OBLIGOR, FURNISH THE FOLLOWING INFORMATION AS TO EACH CLASS OF SECURITIES
     OF SUCH PERSON ANY OF WHICH ARE SO OWNED OR HELD BY THE TRUSTEE.
 
                                OCTOBER 7, 1994
 
<TABLE>
<CAPTION>
    COL. A               COL. B                             COL. C                                  COL. D
                                                 AMOUNT OWNED BENEFICIALLY OR                  PERCENT OF CLASS
NAME OF ISSUER AND       AMOUNT                 HELD AS COLLATERAL SECURITY FOR              REPRESENTED BY AMOUNT
TITLE OF CLASS         OUTSTANDING                  OBLIGATIONS IN DEFAULT                      GIVEN IN COL. C
- ---------------        -----------             ---------------------------------             ---------------------
<S>                    <C>                     <C>                                           <C>
</TABLE>
 
             Not applicable by virtue of response to Item 9.
 
                                        2
<PAGE>   11
 
ITEM 8. INDEBTEDNESS OF THE OBLIGOR TO THE TRUSTEE.
 
          EXCEPT AS NOTED IN THE INSTRUCTIONS, IF THE OBLIGOR IS INDEBTED TO THE
     TRUSTEE, FURNISH THE FOLLOWING INFORMATION:

<TABLE>
<CAPTION>
                           OCTOBER 7, 1994
       COL. A
                               COL. B                COL. C
      NATURE OF                AMOUNT
     INDEBTEDNESS           OUTSTANDING             DATE DUE
- ---------------------    ------------------     -----------------
<S>                      <C>                    <C>
</TABLE>
 
             Not applicable by virtue of response to Item 9.
 
ITEM 9. DEFAULTS BY THE OBLIGOR.
 
          (A) STATE WHETHER THERE IS OR HAS BEEN A DEFAULT WITH RESPECT TO THE
     SECURITIES UNDER THIS INDENTURE. EXPLAIN THE NATURE OF ANY SUCH DEFAULT.
 
             There is not nor has there been a default with respect to the
        securities under this indenture.
 
          (B) IF THE TRUSTEE IS A TRUSTEE UNDER ANOTHER INDENTURE UNDER WHICH
     ANY OTHER SECURITIES, OR CERTIFICATES OF INTEREST OR PARTICIPATION IN ANY
     OTHER SECURITIES, OF THE OBLIGOR ARE OUTSTANDING, OR IS TRUSTEE FOR MORE
     THAN ONE OUTSTANDING SERIES OR SECURITIES UNDER THE INDENTURE, STATE
     WHETHER THERE HAS BEEN A DEFAULT UNDER SUCH INDENTURE OR SERIES, IDENTIFY
     THE INDENTURE OR SERIES AFFECTED, AND EXPLAIN THE NATURE OF ANY SUCH
     DEFAULT.
 
             The trustee is not a trustee under any other indenture under which
        any other securities or certificates of interest or participation in any
        other securities of the obligor are outstanding. There is not nor has
        there been a default with respect to the securities under this
        indenture.
 
ITEM 10. AFFILIATIONS WITH THE UNDERWRITERS.
 
          IF ANY UNDERWRITER IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH SUCH
     AFFILIATION.
 
             Not applicable by virtue of response to Item 9.
 
ITEM 11. LIST OF EXHIBITS.
 
          LIST BELOW ALL EXHIBITS FILED AS A PART OF THIS STATEMENT OF
     ELIGIBILITY AND QUALIFICATION.
 
           None.
 
                                   SIGNATURE
 
PURSUANT TO THE REQUIREMENTS OF THE TRUST INDENTURE ACT OF 1939, I, ROBERT J.
DONAHUE, HAVE SIGNED THIS STATEMENT OF ELIGIBILITY AND QUALIFICATION IN THE CITY
OF CHICAGO, AND STATE OF ILLINOIS, ON THE 7TH DAY OF OCTOBER, 1994.
 
                                            By      /s/  ROBERT J. DONAHUE
                                             -----------------------------------
                                                     Robert J. Donahue
 
                                        3


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