8-K/A

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549



                                   FORM 8-K/A


                                 CURRENT REPORT




     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934




                Date of report (Date of earliest event reported):
                                  June 23, 1998





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




         Illinois                       1-3672                   37-0211380
(State or other jurisdiction         (Commission              (I.R.S. Employer
     of incorporation)               File Number)            Identification No.)





               607 East Adams Street, Springfield, Illinois 62739
              (Address of principal executive offices and Zip Code)






       Registrant's telephone number, including area code: (217) 523-3600









ITEM 4.  Changes in Registrant's Certifying Accountants

     On June 12, 1998, the Board of Directors of the Registrant's parent, Ameren
Corporation  ("Ameren"),  approved the  recommendation  of the Board's  Auditing
Committee  and  appointed  Price  Waterhouse  LLP as auditors for the year 1998.
Ameren is the holding  company which  emerged from the merger of Union  Electric
Company and Registrant's former parent, CIPSCO Incorporated.

     Ameren's  appointment of Price Waterhouse LLP also covers auditing services
for Ameren's  subsidiaries,  which means that Registrant's  previous  certifying
accountant, Arthur Andersen LLP ("Andersen"), has, in effect, been dismissed.

     Andersen's  report of the Registrant's  financial  statements for either of
the last two fiscal years did not contain an adverse  opinion or a disclaimer of
opinion,  and was not qualified or modified as to  uncertainty,  audit scope, or
accounting  principles.  Further,  during such  period,  and through the date of
dismissal, there were no disagreements with Andersen on any matter of accounting
principles or practices,  financial statement  disclosure,  or auditing scope or
procedure.  Also,  there  was no  occurrence  of any  kind of  event  set out in
paragraphs (a)(1)(v)(A) through (D) of Item 304 of Regulation S-K.


ITEM 7.   Financial Statements, Pro Forma Financial Information and Exhibits

          The following exhibit is filed herewith:

          16. Letter dated June 23, 1998 from Arthur Andersen LLP, in accordance
              with subparagraph (a)(3) of Item 304 of Regulation S-K.



                                    SIGNATURE

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.


                                        CENTRAL ILLINOIS PUBLIC SERVICE COMPANY
                                                      (Registrant)


                                              By  /s/ James C. Thompson
                                                 -------------------------- 
                                                      James C. Thompson
                                                      Assistant Secretary

Date:  June 23, 1998

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EX-16

                                                                    EXHIBIT 16





[LETTERHEAD OF ARTHUR ANDERSEN]






June 23, 1998


Office of the Chief Accountant
Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C.  20549



Dear Sir/Madam:

     We have  read  Item 4  included  in the Form 8-K dated  June 23,  1998,  of
Central  Illinois  Public Service Company filed with the Securities and Exchange
Commission and are in agreement with the statements contained therein.

Very truly yours,


/s/ Arthur Andersen LLP

Arthur Andersen LLP

RAM

Copy to:
Mr. Warner L. Baxter
Vice President and Controller
Ameren Corporation

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