Document:

Exhibit 4.4 CIPS Supplemental Indenture, dated August 1, 2006

    Exhibit
      4.4

    When
      recorded mail to:

    
      	
               

              James
                A. Tisckos

              Central
                Illinois Public 

              Service
                Company 

              607
                East Adams Street 

              Springfield,
                IL 62739 

            	 

    

     

    
      	 
	
              Executed
                in 100 Counterparts, No. __.

               

            
	
              Supplemental
                Indenture

               

            
	
              dated
                as of August 1, 2006

               

            
	
              Central
                Illinois Public Service Company

            
	
              to

               

            
	
              U.S.
                Bank National Association

            
	
              and
                Patrick J. Crowley,

              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, 2006 Credit Agreement Series)

            
	
              This
                instrument was prepared by Steven R. Sullivan, Senior Vice President,
                General Counsel and Secretary of Central Illinois Public Service
                Company,
                c/o Ameren Corporation, One Ameren Plaza, 1901 Chouteau Avenue, St.
                Louis,
                Missouri 63103.

               

            

    

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    This
      Supplemental Indenture, dated as of August 1, 2006, 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
      U.S. BANK NATIONAL ASSOCIATION (formerly U.S. Bank Trust National Association,
      formerly First Trust National Association, formerly First Trust of Illinois,
      National Association, successor trustee to Bank of America Illinois, formerly
      Continental Bank, formerly Continental Bank, National Association and formerly
      Continental Illinois National Bank and Trust Company of Chicago), a national
      banking association 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
      Patrick J. Crowley (successor Co-Trustee), of the City of Montvale, Bergen
      County, State of New Jersey, 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, April 1, 1993, June 1,
      1995, March 15, 1997, June 1, 1997, December 1, 1998, June 1, 2001, October
      1,
      2004 and June 1, 2006 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 U.S. Bank National Association and Patrick J. Crowley, as such Trustees,
      being hereinafter sometimes referred to as the “Trustees”
or
      the
“Trustees
      under the Indenture”;

     

    WITNESSETH:

     

    WHEREAS,
      the Company has entered into a Credit Agreement, dated as of July 14, 2006
      (as
      amended or otherwise modified from time to time, the “Credit
      Agreement”)
      by and
      among the Company, Central Illinois Light Company, Illinois Power Company,
      AmerenEnergy Resources Generating Company and CILCORP Inc., as borrowers, the
      lenders from time to time party thereto (the “Lenders”)
      and
      JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, the
“Agent”)
      for
      the Lenders, providing for the making of certain financial accommodations
      thereunder to the Company, and pursuant to such Credit Agreement, the Company
      has agreed to issue to the Agent, as evidence of and security for the
      Obligations (as such term is defined in the Credit Agreement) of the Company
      (the “Company
      Obligations”),
      a new
      series of bonds under the Indenture;

     

    WHEREAS,
      for such purposes, the Company has determined, by resolutions duly adopted
      by
      its Board of Directors, 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, 2006 Credit Agreement Series (hereinafter sometimes referred
      to
      as the “bonds
      of 2006 Credit Agreement 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, Section 6 of
      Article II and Article XVI of the Indenture, for the purpose of (1) creating
      and

     

    
      
        
        

      

      
        2

        
          

        

      

      
        
        

      

    

     

    authorizing
      not to exceed $135,000,000 aggregate principal amount of bonds of 2006 Credit
      Agreement Series and setting forth the form, terms, provisions and
      characteristics thereof, and (2) modifying or amending certain provisions of
      the
      Indenture in the particulars and to the extent hereinafter specifically
      provided; and

     

    WHEREAS,
      the bonds of 2006 Credit Agreement Series shall
      be
      issued to the Agent as evidence of and security for the Company Obligations
      under the Credit Agreement;

     

    WHEREAS,
      the execution and delivery by the Company of this supplemental indenture have
      been duly authorized by the Board of Directors of the Company; 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 2006 Credit Agreement Series are to be authorized, authenticated
      and issued only in the form of registered bonds without coupons, and the bonds
      of 2006 Credit Agreement Series and the certificate of the Trustee thereon
      shall
      be substantially in the following form, to wit:

     

    [FORM
      OF
      BOND]

     

    
      	
              No.
                _______

               

            	
              $__________

               

            

    

    Illinois
      Commerce Commission

    Identification
      No.: Ill. C.C. No. ____

     

    Notwithstanding
      any provisions hereof or in the Indenture

    this
      Bond is not assignable or transferable except to a successor Agent appointed
      in

    accordance
      with the Credit Agreement, dated 

    as
      of July 14, 2006, hereinafter referred to.

     

    Central
      Illinois Public Service Company

    First
      Mortgage Bond, 2006 Credit Agreement Series 

     

    
      	
              REGISTERED
                OWNER: JPMorgan Chase Bank, N.A., 

            
	
               

              PRINCIPAL
                AMOUNT _________________________________ 
                DOLLARS

            

    

    

     

    CENTRAL
      ILLINOIS PUBLIC SERVICE COMPANY, an Illinois corporation (hereinafter referred
      to as the “Company”),
      for
      value received, hereby promises to pay to the Registered Owner specified above,
      as administrative agent (in such capacity, the “Agent”) for the Lenders (as
      defined below) under the Credit Agreement, dated as of July 14, 2006, by and
      among the Company, Central Illinois Light Company, Illinois Power Company,
      AmerenEnergy Resources Generating Company and CILCORP Inc., as borrowers, the
      lenders from time to time party thereto (the “Lenders”)
      and
      JPMorgan Chase Bank, N.A., as administrative agent (as amended or otherwise
      modified from time to time, the “Credit
      Agreement”),
      or
      registered assigns, the Principal Amount specified above or such lesser
      principal amount as shall be equal to the Borrower Credit Exposure (as defined
      in the Credit Agreement) of the Company 

     

    
      
        
        

      

      
        3

        
          

        

      

      
        
        

      

    

     

    outstanding
      on the Maturity Date (having at any time the meaning such term has at such
      time
      under the Credit Agreement) of the Company, but not in excess of the Principal
      Amount of this bond, and to pay interest thereon at the Interest Rate (as
      defined below) until the principal hereof is paid or duly made available for
      payment on the Maturity Date or in the event of redemption of this bond, until
      the redemption date. 

     

    Interest
      on this bond shall be payable on each Interest Payment Date (as defined below),
      commencing on the first Interest Payment Date next succeeding the date of this
      bond. If the Maturity Date falls on a day which is not a Business Day, as
      defined below, principal and any interest and/or fees payable with respect
      to
      the Maturity Date will be paid on the next succeeding Business Day. The interest
      payable, and punctually paid or duly provided for, on any Interest Payment
      Date
      will, subject to certain exceptions provided in the Supplemental Indenture
      dated
      as of June 15, 2006, hereinafter referred to, be paid to the person in whose
      name this bond (or one or more predecessor bonds) is registered at the close
      of
      business on the Record Date (as defined below); provided, however, that interest
      payable on the Maturity Date will be payable to the person to whom the principal
      hereof shall be payable. Should the Company default in the payment of interest
      (“Defaulted Interest”), the Defaulted Interest shall be paid to the person in
      whose name this bond is registered on the Record Date to be established by
      the
      Trustee for payment of such Defaulted Interest. As used herein, (A) “Business
      Day” shall have the meaning assigned thereto in the Credit Agreement; (B)
“Interest Payment Date” shall mean each date on which Company Obligations
      constituting interest and/or fees are due and payable from time to time pursuant
      to the Credit Agreement; (C) “Interest Rate” shall mean a rate of interest per
      annum, adjusted as necessary, to result in an interest payment equal to the
      aggregate amount of Company Obligations constituting interest and fees of the
      Company due under the Credit Agreement on the applicable Interest Payment Date;
      and (D) “Record Date” with respect to any Interest Payment Date shall mean the
      day (whether or not a Business Day) immediately next preceding such Interest
      Payment Date.

     

    Both
      the
      principal of and the interest on this bond shall be payable in immediately
      available funds at the office or agency of the Trustee, 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. 

     

    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 U.S. Bank
      National Association (formerly U.S. Bank Trust National Association, formerly
      First Trust National Association, formerly First Trust of Illinois, National
      Association, successor trustee to Bank of America Illinois, formerly Continental
      Bank, 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,
      including the Supplemental Indenture pursuant to which $135,000,000 in aggregate
      principal amount of the First Mortgage Bonds, 2006 Credit Agreement Series
      (the
“2006
      Credit Agreement Series Bonds”)
      are
      authorized, each executed and delivered by the Company to the Trustees

     

    
      
        
        

      

      
        4

        
          

        

      

      
        
        

      

    

     

    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 U.S. Bank National Association and Patrick J. Crowley (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
      2006
      Credit Agreement Series Bonds are
      to be
      issued and delivered to the Agent in order to evidence and secure the
      obligations of the Company under the Credit Agreement to make payments to the
      Lenders under the Credit Agreement and to provide the Lenders the benefit of
      the
      lien of the Indenture with respect to the 2006 Credit Agreement Series
      Bonds.

     

    The
      obligation of the Company to make payments with respect to principal under
      the
      Credit Agreement shall not give rise to an obligation to pay principal of the
      2006 Credit Agreement Series Bonds except on the Maturity Date of the Company
      or
      upon redemption hereof. If at any time any permanent reduction of the Borrower
      Sublimit (as defined in the Credit Agreement) of the Company or the Borrower
      Credit Exposure (as defined in the Credit Agreement) of the Company shall result
      in the principal of the 2006 Credit Agreement Series Bonds being greater than
      the greater of the Borrower Sublimit and the Borrower Credit Exposure, a payment
      obligation with respect to the principal of the 2006 Credit Agreement Series
      Bonds in the amount of such excess shall be deemed discharged upon the
      effectiveness of such permanent reduction. No payment of principal under the
      Credit Agreement shall reduce the principal amount of the 2006
      Credit Agreement Series Bonds to an amount less than the greater of the Borrower
      Sublimit and the Borrower Credit Exposure.

     

    The
      obligation of the Company to make payments with respect to the interest on
      the
      2006 Credit
      Agreement Series Bonds shall be fully or partially, as the case may be,
      satisfied and discharged to the extent that, at the time that any such payment
      shall be due, the then due interest and/or fees of the Company under the Credit
      Agreement shall have been fully or partially paid. Satisfaction of any
      obligation to the extent that payment is made with respect to the interest
      and/or fees of the Company under the Credit Agreement means that if any payment
      is made on the interest and/or fees of the Company under the Credit Agreement,
      a
      corresponding payment obligation with respect to the interest on the 2006 Credit
      Agreement Series Bonds shall be deemed discharged in the same amount as such
      payment made on the interest and/or fees of the Company under the Credit
      Agreement.

     

    The
      Trustee may at any time and all times conclusively assume that the obligation
      of
      the Company to make payments with respect to the principal of and interest
      on
      the 2006 Credit Agreement Series Bonds, so far as such payments at the time
      have
      become due, has been fully satisfied and discharged pursuant to the foregoing
      paragraphs unless and until the Trustee shall have received a written notice
      from the Agent stating (i) that timely payment of principal of or interest
      on
      the 2006 Credit Agreement Series Bonds has not been made, (ii) that the Company
      is in arrears as to the payments required to be made by it to the Agent in
      connection with the Company Obligations pursuant to the Credit Agreement, and
      (iii) the amount of the arrearage.

     

    
      
        
        

      

      
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    This
      bond
      is not redeemable except upon written demand of the Agent following the
      occurrence of a Default by the Company under the Credit Agreement and the
      acceleration of the Company Obligations, as provided under the Credit Agreement.
      

     

    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
      shall not be assignable or transferable except to a successor Agent appointed
      in
      accordance with the Credit Agreement. This bond is exchangeable 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 exchange a new registered bond
      or
      bonds without coupons, of the same series and maturity and for the same
      aggregate principal amount, will be issued in exchange heretofore; provided,
      that the Company shall not be required to exchange any bonds of 2006 Credit
      Agreement Series for a period of ten (10) days next preceding an Interest
      Payment Date with respect to such bonds.

     

    The
      Agent
      shall surrender this bond to the Trustee when each of the Borrower Sublimit
      and
      the Borrower Credit Exposure have been reduced to zero and all fees and other
      amounts payable by the Company pursuant to the Credit Agreement with respect
      to
      the Company Obligations shall have been duly paid.

     

    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.

     

     

    
      
        
        

      

      
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    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 facsimile signature
      of
      its Secretary or one of its Assistant Secretaries.

     

    
      	
               

               

            	
              CENTRAL
                ILLINOIS PUBLIC SERVICE 

              COMPANY

               

              By
                ______________________________

              President

            
	
              Attest:

               

              By_____________________________

              Secretary

            	 

    

     

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

     

    
      	
               

            	
              U.S.
                BANK NATIONAL ASSOCIATION, as 

              Trustee

               

              By_______________________________

              Authorized
                Officer

            

    

     

    [END
      OF
      FORM OF BOND]

     

    

    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 securing the due and punctual payment of the principal of and
      interest 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 $135,000,000 aggregate
      principal amount of the bonds of 2006 Credit Agreement Series, 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 U.S. Bank National Association and Patrick J. Crowley,
      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, 

     

    
      
        
        

      

      
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    of
      every
      kind and description, real and personal, which have been acquired by the Company
      through construction, purchase, consolidation or merger, or otherwise,
      subsequent to January 1, 2006, 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 chooses in action
      not specifically assigned to and pledged with the Trustee or Trustees under
      the
      Indenture, and (c) all 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.

     

    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 2006 Credit Agreement Series and to fix the terms,
      provisions and characteristics of the bonds of 2006 Credit Agreement Series,
      and
      to modify or amend the Indenture in the particulars and to the extent
      hereinafter in this supplemental indenture specifically provided, the Company
      hereby covenants and agrees with the Trustees as follows:

     

    Article
      I   

     

    Section
      1.1  A
      series
      of bonds issuable under the Indenture, as hereby amended, to be known and
      designated as “First
      Mortgage Bonds, 2006 Credit Agreement 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 2006
      Credit Agreement Series and the Trustee’s Certificate to be endorsed thereon
      shall be substantially in the form thereof hereinbefore recited (the
“Bond
      Form”).
      Each
      bond of 2006 Credit Agreement Series is to be issued and registered in the
      name
      of the Agent under the Credit Agreement to evidence and secure any and all
      Obligations (as such term is defined in the Credit Agreement) of the Company
      (the “Company
      Obligations”)
      under
      the Credit Agreement. Each bond of 2006 Credit Agreement Series shall be dated
      as of the Interest Payment Date (as defined below) 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
      such issue date, 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 the date of original issuance. 

     

    The
      bonds
      of 2006 Credit Agreement Series shall be issued in the aggregate principal
      amount of $135,000,000 and shall mature on the Maturity Date (having at any
      time
      the meaning such term has at such time under the Credit Agreement) of the
      Company.

     

    
      
        
        

      

      
        8

        
          

        

      

      
        
        

      

    

    The
      bonds
      of 2006 Credit Agreement Series shall bear interest from their date as set
      forth
      in the Bond Form. Interest on the bonds of 2006 Credit Agreement Series shall
      be
      payable on each Interest Payment Date (as defined below), commencing on the
      first Interest Payment Date next succeeding the date of the bonds of 2006 Credit
      Agreement Series. If the Maturity Date falls on a day which is not a Business
      Day, as defined below, principal and any interest and/or fees payable by the
      Company with respect to the Maturity Date will be paid on the next succeeding
      Business Day. 

     

    Both
      the
      principal of and the interest on the bonds of 2006 Credit Agreement Series
      shall
      be payable at the times and in the manner set forth in the form of bond set
      out
      herein and in immediately available funds at the office or agency of the
      Trustee, 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. 

     

    Section
      1.2  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 bonds
      of 2006 Credit Agreement Series are registered (the “Registered
      Owner”)
      at the
      close of business on the Record Date (as defined below) 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 2006 Credit Agreement Series are
      registered on the Record Date to be established by the Trustee for payment
      of
      such defaulted interest.

     

    The
      obligation of the Company to make payments with respect to principal under
      the
      Credit Agreement shall not give rise to an obligation to pay principal of the
      2006 Credit Agreement Series Bonds except on the Maturity Date of the Company
      or
      upon redemption as provided in this Supplemental Indenture. If at any time
      any
      permanent reduction of the Borrower Sublimit (as defined in the Credit
      Agreement) of the Company or the Borrower Credit Exposure (as defined in the
      Credit Agreement) of the Company shall result in the principal of the 2006
      Credit Agreement Series Bonds being greater than the greater of the Borrower
      Sublimit and the Borrower Credit Exposure, a payment obligation with respect
      to
      the principal of the 2006 Credit Agreement Series Bonds in the amount of such
      excess shall be deemed discharged upon the effectiveness of such permanent
      reduction. No payment of principal under the Credit Agreement shall reduce
      the
      principal amount of the 2006
      Credit Agreement Series Bonds to an amount less than the greater of the Borrower
      Sublimit and the Borrower Credit Exposure.

     

    The
      obligation of the Company to make payments with respect to the interest on
      the
      bonds of 2006 Credit Agreement Series shall be fully or partially, as the case
      may be, satisfied and discharged to the extent that, at the time that any such
      payment shall be due, the then due interest and/or fees of the Company under
      the
      Credit Agreement shall have been fully or partially paid. Satisfaction of any
      obligation to the extent that payment is made with respect to the interest
      and/or fees of the Company under the Credit Agreement means that if any payment
      is made on the interest and/or fees of the Company under the Credit Agreement,
      a
      corresponding payment obligation with respect to the interest on the bonds
      of
      2006 Credit Agreement Series 

     

    
      
        
        

      

      
        9

        
          

        

      

      
        
        

      

    

     

    shall
      be
      deemed discharged in the same amount as such payment made on the interest and/or
      fees of the Company under the Credit Agreement.

     

    The
      Trustee may at any time and all times conclusively assume that the obligation
      of
      the Company to make payments with respect to the principal of and interest
      on
      the bonds of 2006 Credit Agreement Series, so far as such payments at the time
      have become due, has been fully satisfied and discharged pursuant to the
      foregoing paragraphs unless and until the Trustee shall have received a written
      notice from the Agent stating (i) that timely payment of principal of or
      interest on the bonds of 2006 Credit Agreement Series has not been made, (ii)
      that the Company is in arrears as to the payments required to be made by it
      to
      the Agent in connection with the Company Obligations pursuant to the Credit
      Agreement, and (iii) the amount of the arrearage.

     

    Section
      1.3  As
      used
      herein, (A) “Business
      Day”
shall
      have the meaning assigned thereto in the Credit Agreement; (B) “Interest
      Payment Date”
shall
      mean each date on which Company Obligations constituting interest and/or fees
      are due and payable from time to time pursuant to the Credit Agreement; (C)
      “Interest
      Rate”
shall
      mean a rate of interest per annum, adjusted as necessary, to result in an
      interest payment equal to the aggregate amount of Company Obligations
      constituting interest and fees of the Company due under the Credit Agreement
      on
      the applicable Interest Payment Date; and (D) “Record
      Date”
with
      respect to any Interest Payment Date shall mean the day (whether or not a
      Business Day) immediately next preceding such Interest Payment
      Date.

     

    Section
      1.4  Except
      as
      set forth herein, the bonds of 2006 Credit Agreement Series are not redeemable.
      Upon the occurrence of a Default by the Company under the Credit Agreement
      and
      the acceleration of the Company Obligations, the bonds of 2006 Credit Agreement
      Series shall be redeemable in whole upon receipt by the Trustee of a written
      demand from the Agent stating that there has occurred under the Credit Agreement
      both a Default by the Company and a declaration of acceleration of the Company
      Obligations and demanding redemption of the bonds of 2006 Credit Agreement
      Series (including a description of the amount of principal, interest, fees,
      cash
      collateralization obligations and other amounts which comprise such Company
      Obligations). The Company waives any right it may have to prior notice of such
      redemption under the Indenture and any other notice required under the
      Indenture, including notice to be given by the Company, shall be deemed
      satisfied by the notice given by the Agent as aforesaid. Upon surrender of
      the
      bonds of 2006 Credit Agreement Series by the Agent to the Trustee, the bonds
      of
      2006 Credit Agreement Series shall be redeemed at a redemption price equal
      to
      the aggregate amount of the Company Obligations.

     

    Section
      1.5  The
      bonds
      of 2006 Credit Agreement Series shall not be assignable or transferable except
      to a successor Agent appointed in accordance with the Credit Agreement. The
      bonds of 2006 Credit Agreement Series are
      exchangeable by the Registered Owner thereof, 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 said bonds and the payment
      of any stamp tax or other governmental charge, and upon any such exchange a
      new
      registered bond or bonds without coupons, of the same series and maturity and
      for the same aggregate principal amount, will be issued in exchange theretofore;
      provided, that the Company shall not be required to exchange any bonds of 2006
      Credit Agreement Series for a period of ten (10) days next preceding an Interest
      Payment Date with respect to such bonds.

     

    
      
        
        

      

      
        10

        
          

        

      

      
        
        

      

    

    Section
      1.6  The
      bonds
      of 2006 Credit Agreement 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
      2006 Credit Agreement 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 2006 Credit
      Agreement 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.

     

    Section
      1.7  As
      provided in Section 8.4 of the Credit Agreement, the Agent shall surrender
      the
      bonds of 2006 Credit Agreement Series to the Trustee for cancellation when
      each
      of the Borrower Sublimit and the Borrower Credit Exposure have been reduced
      to
      zero and all fees and other amounts payable by the Company pursuant to the
      Credit Agreement with respect to the Company Obligations shall have been duly
      paid.

     

    Article
      II   

     

    Section
      2.1  Sections
      10 and 16 of Article III of the Indenture are, and each of them is, hereby
      amended by striking out the words “Series
      1997-2, Senior Notes Series AA-1, Senior Notes Series AA-2, Senior Notes Series
      BB, Environmental Improvement Series 2004 and Senior Notes Series
      CC”
      wherever the same occur in each of said sections, and by inserting, in lieu
      thereof, the words “Series
      1997-2, Senior Notes Series AA-1, Senior Notes Series AA-2, Senior Notes Series
      BB, Environmental Improvement Series 2004, Senior Notes Series CC and 2006
      Credit Agreement Series”
and
      the
      Company hereby covenants and agrees to observe and comply with the provisions
      of
      said sections as hereby amended.

     

    
      
        
        

      

      
        11

        
          

        

      

      
        
        

      

    

    Article
      III   

     

    Section
      3.1  The
      provisions of this supplemental indenture shall become and be effective from
      and
      after the execution hereof, and the Indenture, as hereby amended, shall remain
      in full force and effect.

     

    Section
      3.2  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
      3.3  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 of 2006 Credit Agreement Series and of
      the
      coupons issued and outstanding from time to time under and secured by the
      Indenture, as hereby amended, and the Agent, for the benefit of the Lenders
      under the Credit Agreement.

     

    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, is
      $496,500,000, evidenced by First Mortgage Bonds of the series listed below,
      issued by the Company under said Indenture and now outstanding or to be
      presently issued by it under said Indenture, as follows:

    
      
        
        

      

      
        12

        
          

        

      

      
        
        

      

    

    

     

    
      	
               

                                                    Series                                      

            	
               

                                 Interest
                Rate
                (%)                
                

            	
               

                                          Maturity
                Date                           
                

            	
                   
                Principal

                                     
                Amount
                ($)               
                

            
	
               

            	 	 	 
	
              1997-2

            	
              7.61

            	
              June
                1, 2017

            	
              40,000,000

            
	
              Senior
                Notes AA-1

            	
              5.375

            	
              December
                15, 2008

            	
                                     
                15,000,000

            
	
              Senior
                Notes AA-2

            	
              6.125%

            	
              December
                15, 2028

            	
              60,000,000

            
	
              Senior
                Notes BB

            	
              6.625%

            	
              June
                15, 2011

            	
                                   
                150,000,000

            
	
              Series
                2004

            	
              * 

            	
              July
                1, 2025

            	
              35,000,000
                

            
	
              Senior
                Notes CC 

            	
              6.70%

            	
              June
                15, 2036

            	
              61,500,000

            
	
              2006
                Credit Agreement 

            	
              **

            	
              **

            	
                                   
                135,000,000(a)

            
	
               

            	 	 	 
	 	 	
              Total........

            	
                                   
                496,500,000

            

    

    

     

    Section
      3.4  The
      Company acknowledges and intends that all advances made to it by the Lenders
      under the Credit Agreement, including future advances whenever hereafter made,
      shall be a lien from the time this Supplemental Indenture is
      recorded, as provided in Section 15-1302(b)(1) of the Illinois Mortgage
      Foreclosure Law (the “Act”), 735 ILCS 15-1101, et seq. The amount of the bonds
      of the 2006 Credit Agreement Series which comprises the principal amount then
      outstanding of the Obligations under the Credit Agreement constitutes revolving
      credit indebtedness secured by a mortgage on real property, pursuant to the
      terms and conditions of 205 ILCS 5/5d from the date of this Supplemental
      Indenture.

     

    

     

    ________________________

      
        *
          As
          determined in accordance with the Indenture of Trust dated as of October
          1, 2004
          between the Illinois Finance Authority and UMB Bank, N.A., as
          Trustee.

         

        **
          As
          determined in accordance with the Credit Agreement.

         

        (a)
          To be
          presently issued by the Company under said Indenture.

         

        
          
            
            

          

          
            13

            
              

            

          

          
            
            

          

        

      

    

    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 U.S.
      Bank National Association, 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
      Assistant Vice Presidents, and said Patrick J. Crowley, 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
                 /s/
                Jerre E.
                Birdsong                         
                   

              Name: 
                Jerre E. Birdsong 

              Title:    Vice
                President and Treasurer 

            
	
              (Corporate
                Seal)

               

              Attest:

               

              By:
                 /s/
                G.L. Waters        
                  

              Name:
                G.L.Waters

              Title:
                Assistant Secretary

            	 

    

     

    
 

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    
      	 	 
	 	
              U.S.
                Bank National Association

               

               

              By:
                 /s/
                Beverly A.
                Freeney          
                 

              Name:  
                Beverly A. Freeney 

              Title:    
                Vice
                President

            
	
              (Corporate
                Seal)

               

              Attest:

               

              By:
                 /s/
                Jean
                Clarke                      
                   

              Name:
                Jean Clarke

              Title: Assistant
                Vice President

            	 
	 	
               

              By:
                 /s/
                Patrick J. Crowley (Seal)       

                   
Patrick
                J. Crowley 

            

    

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    State
      of
      Missouri )

                                   
      ) SS

    City
      of
      St. Louis   )

     

    I,
      Carol
      A. Head, a Notary Public, do hereby certify that Jerre E. Birdsong, Vice
      President and Treasurer of Central Illinois Public Service Company, a
      corporation organized and existing under the laws of the State of Illinois,
      and
      G.L. Waters, 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 31st day of August 2006, in the City and
      State aforesaid.

     

    
      	 	
               

               

              /s/
                Carol A.
                Head              
                

            
	 	
                           
                Carol A. Head

                           
                Notary Public

            
	
              (Notarial
                Seal)

            	 

    

    

    My
      commission expires September 23, 2006

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    State
      of
      New York    )

    ) SS

    County
      of
      Queens   )

     

    I,
      Janet
      P. O’Hara, a Notary Public in and for Queens County in the State aforesaid, do
      hereby certify that:

     

    (a)
      Beverly A. Freeney, a Vice President of U.S. Bank National Association, a
      national banking association, and Jean Clarke, an Assistant Vice President
      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)
      Patrick J. Crowley, 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 31st day of August, 2006.

     

    
      	 	
              /s/
                Janet P. O’Hara  

                          
                Notary Public

            
	 	 
	
              (Notarial
                Seal)

            	 

    

    

    My
      Commission expires November 3, 2009Exhibit 4.6 Illinois Power Company Supplemental Indenture, dated August 1,
      2006

    Exhibit
      4.6

    When
      Recorded Mail to:

    Illinois
      Power Company

    Craig
      W.
      Stensland

    One
      Ameren Plaza (MC 1310)

    1901
      Chouteau Avenue

    St.
      Louis, MO 63103

    

    

    
 

     

      
        

      

    

     

    ILLINOIS
      POWER COMPANY

     

    TO

     

    BNY
      MIDWEST TRUST COMPANY,

     

    AS
      SUCCESSOR TRUSTEE TO

     

    HARRIS
      TRUST AND SAVINGS BANK

     

     

      
        

      

    

     

    SUPPLEMENTAL
      INDENTURE 

     

    DATED
      AS
      OF AUGUST
      1,
      2006

     

    TO

     

    GENERAL
      MORTGAGE INDENTURE AND DEED OF TRUST

     

    DATED
      AS
      OF NOVEMBER 1, 1992

     

      
        

      

    

    

    This
      instrument was prepared by Steven R. Sullivan, Senior Vice President, General
      Counsel and Secretary of Illinois Power Company c/o Ameren Corporation, One
      Ameren Plaza, 1901 Chouteau Avenue, St. Louis, Missouri 63103.

    

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    SUPPLEMENTAL
      INDENTURE dated as of August 1, 2006 (“Supplemental Indenture”), made by and
      between ILLINOIS POWER COMPANY, a corporation organized and existing under
      the
      laws of the State of Illinois (the “Company”), party of the first part, and BNY
      MIDWEST TRUST COMPANY, a corporation organized and existing under the laws
      of
      the State of Illinois, as successor trustee to Harris Trust and Savings Bank,
      a
      corporation organized and existing under the laws of the State of Illinois
      (the
“Trustee”), as Trustee under the General Mortgage Indenture and Deed of Trust
      dated as of November 1, 1992, hereinafter mentioned, party of the second
      part;

     

    WHEREAS,
      the Company has heretofore executed and delivered its General Mortgage Indenture
      and Deed of Trust dated as of November 1, 1992 as from time to time amended
      (the
“Indenture”), to the Trustee, for the security of the Bonds of the Company
      issued and to be issued thereunder (the “Bonds”); and

     

    WHEREAS,
      pursuant to the terms and provisions of the Indenture there were created and
      authorized by supplemental indentures thereto bearing the following dates,
      respectively, the Mortgage Bonds of the series issued thereunder and
      respectively identified opposite such dates:

     

    
      	
              DATE
                OF 

              SUPPLEMENTAL
                INDENTURE

               

            	
              IDENTIFICATION
                OF SERIES

               

            	
              CALLED

               

            
	
              February
                15, 1993

               

            	
              8%
                Series due 2023 (redeemed)

               

            	
              Bonds
                of the 2023 Series

               

            
	
              March
                15, 1993

               

            	
              6
                1/8% Series due 2000 (paid at maturity)

               

            	
              Bonds
                of the 2000 Series

               

            
	
              March
                15, 1993

               

            	
              6
                3/4% Series due 2005 (paid at maturity)

               

            	
              Bonds
                of the 2005 Series

               

            
	
              July
                15, 1993

               

            	
              7
                1/2% Series due 2025 (redeemed)

               

            	
              Bonds
                of the 2025 Series

               

            
	
              August
                1, 1993

               

            	
              6
                1/2% Series due 2003 (paid at maturity)

               

            	
              Bonds
                of the 2003 Series

               

            
	
              October
                15, 1993

               

            	
              5
                5/8% Series due 2000 (paid at maturity)

               

            	
              Bonds
                of the Second 2000 Series

               

            
	
              November
                1, 1993

               

            	
              Pollution
                Control Series M (redeemed)

               

            	
              Bonds
                of the Pollution Control Series M

               

            
	
              November
                1, 1993

               

            	
              Pollution
                Control Series N (redeemed)

               

            	
              Bonds
                of the Pollution Control Series N

               

            
	
              November
                1, 1993

               

            	
              Pollution
                Control Series O (redeemed)

               

            	
              Bonds
                of the Pollution Control Series O

               

            

    

     

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

       

       

        	
                DATE
                  OF 

                SUPPLEMENTAL
                  INDENTURE

                 

              	
                IDENTIFICATION
                  OF SERIES

                 

              	
                CALLED

                 

              

      

    

    
      	
              April
                1, 1997

               

            	
              Pollution
                Control Series P

               

            	
              Bonds
                of the Pollution Control Series P

               

            
	
              April
                1, 1997

               

            	
              Pollution
                Control Series Q

               

            	
              Bonds
                of the Pollution Control Series Q

               

            
	
              April
                1, 1997

               

            	
              Pollution
                Control Series R

               

            	
              Bonds
                of the Pollution Control Series R

               

            
	
              March
                1, 1998

               

            	
              Pollution
                Control Series S

               

            	
              Bonds
                of the Pollution Control Series S

               

            
	
              March
                1, 1998

               

            	
              Pollution
                Control Series T

               

            	
              Bonds
                of the Pollution Control Series T

               

            
	
              July
                15, 1998

               

            	
              6
                1/4% Series due 2002 (paid at maturity)

               

            	
              Bonds
                of the 2002 Series

               

            
	
              September
                15, 1998

               

            	
              6%
                Series due 2003 (paid at maturity)

               

            	
              Bonds
                of the Second 2003 Series

               

            
	
              June
                15, 1999

               

            	
              7.50%
                Series due 2009

               

            	
              Bonds
                of the 2009 Series

               

            
	
              July
                15, 1999

               

            	
              Pollution
                Control Series U

               

            	
              Bonds
                of the Pollution Control Series U

               

            
	
              July
                15, 1999

               

            	
              Pollution
                Control Series V (redeemed)

               

            	
              Bonds
                of the Pollution Control Series V

               

            
	
              May
                1, 2001

               

            	
              Pollution
                Control Series W

               

            	
              Bonds
                of the Pollution Control Series W

               

            
	
              May
                1, 2001

               

            	
              Pollution
                Control Series X

               

            	
              Bonds
                of the Pollution Control Series X

               

            
	
              July
                1, 2002

               

            	
              10
                5/8% Series due 2007 (not issued)

               

            	
              Bonds
                of the 2007 Series 

               

            
	
              July
                1, 2002

               

            	
              10
                5/8% Series due 2012 (not issued)

               

            	
              Bonds
                of the 2012 Series

               

            
	
              December
                15, 2002

               

            	
              11.50%
                Series due 2010

               

            	
              Bonds
                of the 2010 Series

               

            
	
              June
                1, 2006

               

            	
              Mortgage
                Bonds, Senior Notes Series AA

               

            	
              Bonds
                of Series AA

               

            

    

    and

     

    
      
        
        

      

      
        2

        
          

        

      

      
        
        

      

    

    WHEREAS,
      a supplemental indenture with respect to the Bonds of the 2007 Series and the
      Bonds of the 2012 Series listed above was executed and filed but such Bonds
      of
      the 2007 Series and Bonds of the 2012 Series were never issued and a release
      with respect to such supplemental indenture was subsequently executed and filed;
      and

     

    WHEREAS,
      the Company has entered into a Credit Agreement, dated as of July 14, 2006
      (as
      amended or otherwise modified from time to time, the “Credit Agreement”) by and
      among the Company, Central Illinois Light Company, Central Illinois Public
      Service Company, AmerenEnergy Resources Generating Company and CILCORP Inc.,
      as
      borrowers, the lenders from time to time party thereto (the “Lenders”) and
      JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, the
“Agent”) for the Lenders, providing for the making of certain financial
      accommodations thereunder to the Company, and pursuant to such Credit Agreement,
      the Company has agreed to issue to the Agent, as evidence of and security for
      the Obligations (as such term is defined in the Credit Agreement) of the Company
      (the “Company Obligations”), a new series of Bonds under the Indenture;
      and

     

    WHEREAS,
      for such purposes, the Company desires to create a new series of Bonds to be
      issued under the Indenture to be known as Mortgage Bonds, 2006 Credit Agreement
      Series (the “2006 Credit Agreement Series Bonds”); and

     

    WHEREAS,
      the 2006 Credit Agreement Series Bonds shall be issued to the Agent as evidence
      of and security for the Company Obligations under the Credit Agreement;
      and

     

    WHEREAS,
      the Company, in the exercise of the powers and authority conferred upon and
      reserved to it under the provisions of the Indenture, and pursuant to
      appropriate resolutions of the Board of Directors, has duly resolved and
      determined to make, execute and deliver to the Trustee this Supplemental
      Indenture in the form hereof for the purposes herein provided; and

     

    WHEREAS,
      all conditions and requirements necessary to make this Supplemental Indenture
      a
      valid, binding and legal instrument have been done, performed and fulfilled
      and
      the execution and delivery hereof have been in all respects duly
      authorized;

     

    NOW,
      THEREFORE, THIS SUPPLEMENTAL INDENTURE

    

    WITNESSETH:

    

    THAT
      Illinois Power Company, in consideration of the purchase and ownership from
      time
      to time of the Bonds and the service by the Trustee, and its successors, under
      the Indenture and of One Dollar to it duly paid by the Trustee at or before
      the
      ensealing and delivery of these presents, the receipt whereof is hereby
      acknowledged, hereby covenants and agrees to and with the Trustee and its
      successors in the trust under the Indenture, for the benefit of those who shall
      hold the Bonds as follows:

     

    
      
        
        

      

      
        3

        
          

        

      

      
        
        

      

    

    ARTICLE
      I  

     

    DESCRIPTION
      OF 2006
      CREDIT AGREEMENT SERIES BONDS.

     

    SECTION
      1.  The
      Company hereby creates a new series of Bonds to be known as “2006 Credit
      Agreement Series Bonds.” The 2006 Credit Agreement Series Bonds shall be
      executed, authenticated and delivered in accordance with the provisions of,
      and
      shall in all respects be subject to, all of the terms, conditions and covenants
      of the Indenture, as supplemented and modified. The 2006 Credit Agreement Series
      Bonds shall be issued only to and in the name of the Agent under the Credit
      Agreement to evidence and secure any and all Company Obligations under the
      Credit Agreement. 

     

    The
      2006
      Credit Agreement Series Bonds shall be dated as of the Interest Payment Date
      (as
      defined below) 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 such issue date, 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 the date of original
      issuance.

     

    The
      2006
      Credit Agreement Series Bonds shall be issued in the aggregate principal amount
      of $150,000,000 and shall mature on the Maturity Date (having at any time the
      meaning such term has at such time under the Credit Agreement) applicable to
      the
      Company.

     

    The
      2006
      Credit Agreement Series Bonds shall bear interest from their date as set forth
      in the form thereof hereinafter recited. Interest on the 2006 Credit Agreement
      Series Bonds shall be payable on each Interest Payment Date (defined below),
      commencing on the first Interest Payment Date next succeeding the date of the
      2006 Credit Agreement Series Bonds. Payment of principal on the 2006 Credit
      Agreement Series Bonds shall be due on the Maturity Date. If the Maturity Date
      falls on a day which is not a Business Day, as defined below, principal and
      any
      interest and/or fees payable by the Company with respect to the Maturity Date
      will be paid on the next succeeding Business Day. 

     

    Both
      the
      principal of and the interest on the 2006 Credit Agreement Series Bonds shall
      be
      payable at the times and in the manner set forth in the form of bond set out
      herein and in immediately available funds at the office or agency of the
      Trustee, 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. 

     

    The
      obligation of the Company to make payments with respect to principal under
      the
      Credit Agreement shall not give rise to an obligation to pay principal of the
      2006 Credit Agreement Series Bonds except on the Maturity Date of the Company
      or
      upon redemption as provided in this Supplemental Indenture. If at any time
      any
      permanent reduction of the Borrower Sublimit (as defined in the Credit
      Agreement) of the Company or the Borrower Credit Exposure (as defined in the
      Credit Agreement) of the Company shall result in the principal of the 2006
      Credit Agreement Series Bonds being greater than the greater of the Borrower
      Sublimit and the Borrower Credit Exposure, a payment obligation with respect
      to
      the principal of the 2006 Credit Agreement Series Bonds in the amount of such
      excess shall be deemed discharged upon 

     

    
      
        
        

      

      
        4

        
          

        

      

      
        
        

      

    

     

    the
      effectiveness of such permanent reduction. No payment of principal under the
      Credit Agreement shall reduce the principal amount of the 2006
      Credit Agreement Series Bonds to an amount less than the greater of the Borrower
      Sublimit and the Borrower Credit Exposure.

     

    The
      obligation of the Company to make payments with respect to the interest on
      the
      2006 Credit Agreement Series Bonds shall be fully or partially, as the case
      may
      be, satisfied and discharged to the extent that, at the time that any such
      payment shall be due, the then due interest and/or fees of the Company under
      the
      Credit Agreement shall have been fully or partially paid. Satisfaction of any
      obligation to the extent that payment is made with respect to the interest
      and/or fees of the Company under the Credit Agreement means that if any payment
      is made on the interest and/or fees of the Company under the Credit Agreement,
      a
      corresponding payment obligation with respect to the interest on the 2006 Credit
      Agreement Series Bonds shall be deemed discharged in the same amount as such
      payment made on the interest and/or fees of the Company under the Credit
      Agreement.

     

    The
      Trustee may at any time and all times conclusively assume that the obligation
      of
      the Company to make payments with respect to the principal of and interest
      on
      the 2006 Credit Agreement Series Bonds, so far as such payments at the time
      have
      become due, has been fully satisfied and discharged pursuant to the foregoing
      paragraphs unless and until the Trustee shall have received a written notice
      from the Agent stating (i) that timely payment of principal of or interest
      on
      the 2006 Credit Agreement Series Bonds has not been made, (ii) that the Company
      is in arrears as to the payments required to be made by it to the Agent in
      connection with the Company Obligations pursuant to the Credit Agreement, and
      (iii) the amount of the arrearage. 

     

    As
      used
      herein, (A) “Business Day” shall have the meaning assigned thereto in the Credit
      Agreement; (B) “Interest Payment Date” shall mean each date on which Company
      Obligations constituting interest and/or fees are due and payable from time
      to
      time pursuant to the Credit Agreement; (C) “Interest Rate” shall mean a rate of
      interest per annum, adjusted as necessary, to result in an interest payment
      equal to the aggregate amount of Company Obligations constituting interest
      and
      fees of the Company due under the Credit Agreement on the applicable Interest
      Payment Date; and (D) “Record Date”
with
      respect to any Interest Payment Date shall mean the day (whether or not a
      Business Day) immediately next preceding such Interest Payment
      Date.

     

    The
      2006
      Credit Agreement Series Bonds shall not be assignable or transferable except
      to
      a successor Agent appointed in accordance with the Credit Agreement. The 2006
      Credit Agreement Series Bonds are
      exchangeable by the Registered Owner thereof, 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 said bonds and the payment
      of any stamp tax or other governmental charge, and upon any such exchange a
      new
      registered bond or bonds without coupons, of the same series and maturity and
      for the same aggregate principal amount, will be issued in exchange theretofore;
      provided, that the Company shall not be required to exchange any 2006 Credit
      Agreement Series Bonds for a period of ten (10) days next preceding an Interest
      Payment Date with respect to such bonds.

     

    As
      provided in Section 8.4 of the Credit Agreement, the Agent shall surrender
      the
      2006 Credit Agreement Series Bonds to the Trustee for cancellation when each
      of
      the Borrower 

     

    
      
        
        

      

      
        5

        
          

        

      

      
        
        

      

    

    Sublimit
      and the Borrower Credit Exposure of the Company have been reduced to zero and
      all fees and other amounts payable by the Company pursuant to the Credit
      Agreement with respect to the Company Obligations shall have been duly
      paid.

     

    SECTION
      2.  The
      2006
      Credit Agreement Series Bonds and the Trustee’s Certificate of Authentication
      shall be substantially in the following forms respectively:

     

    [FORM
      OF FACE OF BOND]

     

    ILLINOIS
      POWER COMPANY

     

    (Incorporated
      under the laws of the State of Illinois)

     

    Notwithstanding
      any provisions hereof or in the Indenture

    this
      Bond is not assignable or transferable except to a successor Agent appointed
      in

    accordance
      with the Credit Agreement, dated 

    as
      of July 14, 2006, hereinafter referred to.

    

    Illinois
      Commerce Commission 

    Identification
      No.: ____

    

    MORTGAGE
      BONDS, 2006 CREDIT AGREEMENT SERIES

     

    No.
      ________                                                                                                                                                                                                                                                               
$150,000,000

     

    ILLINOIS
      POWER COMPANY, a corporation organized and existing under the laws of the State
      of Illinois (the “Company”), which term shall include any successor corporation
      as defined in the Indenture hereinafter referred to, for value received, hereby
      promises to pay to JPMorgan Chase Bank, N.A., as administrative agent (in such
      capacity, the “Agent”) for the Lenders (as defined below) under the Credit
      Agreement, dated as of July 14, 2006, by and among the Company, Central Illinois
      Light Company, Central Illinois Public Service Company, AmerenEnergy Resources
      Generating Company and CILCORP Inc., as borrowers, the lenders from time to
      time
      party thereto (the “Lenders”) and JPMorgan Chase Bank, N.A., as administrative
      agent (as amended or otherwise modified from time to time, the “Credit
      Agreement”), or registered assigns, the principal sum of
      $150,000,000 or
      such
      lesser principal amount as shall be equal to the amount of the Borrower Credit
      Exposure (as defined in the Credit Agreement) of the Company outstanding on
      the
      Maturity Date (having at any time the meaning such term has at such time under
      the Credit Agreement) of the Company, but not in excess of the principal amount
      of this Bond, and to pay interest thereon at the Interest Rate (as defined
      below) until the principal hereof is paid or duly made available for payment
      on
      the Maturity Date or in the event of redemption of this Bond, until the
      redemption date.

     

    Interest
      on this Bond shall be payable on each Interest Payment Date (as defined below),
      commencing on the first Interest Payment Date next succeeding the date of this
      Bond. If the Maturity Date falls on a day which is not a Business Day, as
      defined below, principal and any interest and/or fees payable with respect
      to
      the Maturity Date will be paid on the next succeeding Business Day. The interest
      payable, and punctually paid or duly provided for, on any Interest Payment
      Date
      will, subject to certain exceptions provided in the Supplemental Indenture
      dated
      as 

     

    
      
        
        

      

      
        6

        
          

        

      

      
        
        

      

    

     

    of
      June
      15, 2006, hereinafter referred to, be paid to the person in whose name this
      Bond
      (or one or more predecessor bonds) is registered at the close of business on
      the
      Record Date (as defined below); provided, however, that interest payable on
      the
      Maturity Date will be payable to the person to whom the principal hereof shall
      be payable. Should the Company default in the payment of interest (“Defaulted
      Interest”), the Defaulted Interest shall be paid to the person in whose name
      this Bond is registered on the Record Date to be established by the Trustee
      for
      payment of such Defaulted Interest. As used herein, (A) “Business Day” shall
      have the meaning assigned thereto in the Credit Agreement; (B) “Interest Payment
      Date” shall mean each date on which Company Obligations constituting interest
      and/or fees are due and payable from time to time pursuant to the Credit
      Agreement; (C) “Interest Rate” shall mean a rate of interest per annum, adjusted
      as necessary, to result in an interest payment equal to the aggregate amount
      of
      Company Obligations constituting interest and fees of the Company due under
      the
      Credit Agreement on the applicable Interest Payment Date; and (D) “Record Date”
with respect to any Interest Payment Date shall mean the day (whether or not
      a
      Business Day) immediately next preceding such Interest Payment
      Date.

     

    Both
      the
      principal of and the interest on this Bond shall be payable in immediately
      available funds at the office or agency of the Trustee, 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.

     

    This
      Bond
      is to be issued and delivered to the Agent in order to evidence and secure
      the
      obligations of the Company under the Credit Agreement to make payments to the
      Lenders under the Credit Agreement and to provide the Lenders the benefit of
      the
      lien of the Indenture with respect to the 2006 Credit Agreement Series
      Bonds.

     

    The
      obligation of the Company to make payments with respect to principal under
      the
      Credit Agreement shall not give rise to an obligation to pay principal of the
      2006 Credit Agreement Series Bonds except on the Maturity Date of the Company
      or
      upon redemption hereof. If at any time any permanent reduction of the Borrower
      Sublimit (as defined in the Credit Agreement) of the Company or the Borrower
      Credit Exposure (as defined in the Credit Agreement) of the Company shall result
      in the principal of the 2006 Credit Agreement Series Bonds being greater than
      the greater of the Borrower Sublimit and the Borrower Credit Exposure, a payment
      obligation with respect to the principal of the 2006 Credit Agreement Series
      Bonds in the amount of such excess shall be deemed discharged upon the
      effectiveness of such permanent reduction. No payment of principal under the
      Credit Agreement shall reduce the principal amount of the 2006
      Credit Agreement Series Bonds to an amount less than the greater of the Borrower
      Sublimit and the Borrower Credit Exposure.

     

    The
      obligation of the Company to make payments with respect to the interest on
      this
      Bond shall be fully or partially, as the case may be, satisfied and discharged
      to the extent that, at the time that any such payment shall be due, the then
      due
      interest and/or fees of the Company under the Credit Agreement shall have been
      fully or partially paid. Satisfaction of any obligation to the extent that
      payment is made with respect to the interest and/or fees of the Company under
      the Credit Agreement means that if any payment is made on the interest and/or
      fees of the Company under the Credit Agreement, a corresponding payment
      obligation with respect to the interest on this Bond shall be deemed discharged
      in the same amount as such payment made on the interest and/or fees of the
      Company under the Credit Agreement.

     

    
      
        
        

      

      
        7

        
          

        

      

      
        
        

      

    

    The
      Trustee may at any time and all times conclusively assume that the obligation
      of
      the Company to make payments with respect to the principal of and interest
      on
      this Bond, so far as such payments at the time have become due, has been fully
      satisfied and discharged pursuant to the foregoing paragraphs unless and until
      the Trustee shall have received a written notice from the Agent stating (i)
      that
      timely payment of principal of or interest on this Bond has not been made,
      (ii)
      that the Company is in arrears as to the payments required to be made by it
      to
      the Agent in connection with the Company Obligations pursuant to the Credit
      Agreement, and (iii) the amount of the arrearage.

     

    The
      Agent
      shall surrender this Bond to the Trustee when each of the Borrower Sublimit
      and
      the Borrower Credit Exposure of the Company have been reduced to zero and all
      fees and other amounts payable by the Company pursuant to the Credit Agreement
      with respect to the Company Obligations shall have been duly paid.

     

    This
      Bond
      shall not be entitled to any benefit under the Indenture or any indenture
      supplemental thereto, or become valid or obligatory for any purpose, until
      the
      form of certificate endorsed hereon shall have been signed by or on behalf
      of
      BNY Midwest Trust Company, as successor trustee to Harris Trust and Savings
      Bank, the Trustee under the Indenture, or a successor trustee thereto under
      the
      Indenture (the “Trustee”).

     

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

     

     

    IN
      WITNESS WHEREOF, Illinois Power Company has caused this Bond to be signed
      (manually or by facsimile signature) in its name by an Authorized Executive
      Officer, as defined in the aforesaid Indenture, and attested (manually or by
      facsimile signature) by an Authorized Executive Officer, as defined in such
      Indenture on the date hereof.

     

    Dated
      ____________, 2006

     

    ILLINOIS
      POWER COMPANY

     

    By: 
      ________________________________

    AUTHORIZED
      EXECUTIVE OFFICER

     

    ATTEST:

     

    By:

     

     ______________________________

      AUTHORIZED
      EXECUTIVE OFFICER

     

    
      
        
        

      

      
        8

        
          

        

      

      
        
        

      

    

    

    [FORM
      OF TRUSTEE’S CERTIFICATE OF AUTHENTICATION]

     

    This
      is
      one of the Bonds of the series designated therein referred to in the
      within-mentioned Indenture and the Supplemental Indenture dated as of June
      15,
      2006.

     

    
      	
              BNY
                MIDWEST TRUST COMPANY, successor 

              trustee
                to Harris Trust and Savings, Bank, 

              TRUSTEE,

            
	 
	 
	
              By:
                __________________________________

              AUTHORIZED
                SIGNATORY

            

    

    

    

    [FORM
      OF REVERSE OF BOND]

     

    This
      Bond
      is one of a duly authorized issue of Bonds of the Company (the “Bonds”) in
      unlimited aggregate principal amount, of the series hereinafter specified,
      all
      issued and to be issued under and equally secured by the General Mortgage
      Indenture and Deed of Trust (the “Indenture”), dated as of November 1, 1992,
      executed by the Company to BNY Midwest Trust Company, as successor trustee
      to
      Harris Trust and Savings Bank (the “Trustee”) to which Indenture and all
      indentures supplemental thereto reference is hereby made for a description
      of
      the properties mortgaged and pledged, the nature and extent of the security,
      the
      rights of registered owners of the Bonds and of the Trustee in respect thereof,
      and the terms and conditions upon which the Bonds are, and are to be, secured.
      The Bonds may be issued in series, for various principal sums, may mature at
      different times, may bear interest at different rates and may otherwise vary
      as
      provided in the Indenture. This Bond is one of a series designated as the
“Mortgage Bonds, 2006 Credit Agreement Series” (the “2006 Credit Agreement
      Series Bonds”) of the Company, in an aggregate principal amount of $150,000,000
      issued under and secured by the Indenture and described in the Supplemental
      Indenture dated as of June 15, 2006 (the “Supplemental Indenture of June 15,
      2006”), between the Company and the Trustee, supplemental to the
      Indenture.

     

    This
      2006
      Credit Agreement Series Bond is not redeemable except upon written demand of
      the
      Agent following the occurrence of a Default by the Company under the Credit
      Agreement and the acceleration of the Company Obligations, as provided under
      the
      Credit Agreement. 

     

    In
      case
      an Event of Default, as defined in the Indenture, shall occur, the principal
      of
      all Bonds at any such time outstanding under the Indenture may be declared
      or
      may become due and payable, upon the conditions and in the manner and with
      the
      effect provided in the Indenture. The Indenture provides that such declaration
      may be rescinded under certain circumstances.

     

    
      
        
        

      

      
        9

        
          

        

      

      
        
        

      

    

        
      ARTICLE II  

     

    REDEMPTION.

     

    SECTION
      1.  Except
      as
      set forth herein, the 2006 Credit Agreement Series Bonds are not redeemable.
      Upon the occurrence of a Default by the Company under the Credit Agreement
      and
      the acceleration of the Company Obligations, the 2006 Credit Agreement Series
      Bonds shall be redeemable in whole upon receipt by the Trustee of a written
      demand from the Agent stating that there has occurred under the Credit Agreement
      both a Default by the Company and a declaration of acceleration of the Company
      Obligations and demanding redemption of the 2006 Credit Agreement Series Bonds
      (including a description of the amount of principal, interest, fees cash
      collateralization obligations and other amounts which comprise such Company
      Obligations). The Company waives any right it may have to prior notice of such
      redemption under the Indenture and any other notice required under the
      Indenture, including notice to be given by the Company, shall be deemed
      satisfied by the notice given by the Agent as aforesaid. Upon surrender of
      the
      2006 Credit Agreement Series Bonds by the Agent to the Trustee, the 2006 Credit
      Agreement Series Bonds shall be redeemed at a redemption price equal to the
      aggregate amount of the Company Obligations.

     

         
      ARTICLE III  

     

    ISSUE
      OF 2006
      CREDIT AGREEMENT SERIES BONDS.

     

    SECTION
      1.  The
      Company hereby exercises the right to obtain the authentication of $150,000,000
      principal amount of additional Bonds pursuant to the terms of Section 4.04
      of
      the Indenture, all of which shall be 2006 Credit Agreement Series
      Bonds.

     

    SECTION
      2.  Such
      2006
      Credit Agreement Series Bonds may be authenticated and delivered prior to the
      filing for recordation of this Supplemental Indenture.

     

          
      ARTICLE IV  

     

    THE
      TRUSTEE.

     

    The
      Trustee hereby accepts the trusts hereby declared and provided, and agrees
      to
      perform the same upon the terms and conditions in the Indenture set forth and
      upon the following terms and conditions:

     

    The
      Trustee shall not be responsible in any manner whatsoever for or in respect
      of
      the validity or sufficiency of this Supplemental Indenture or the due execution
      hereof by the Company or for or in respect of the recitals contained herein,
      all
      of which recitals are made by the Company solely. In general, each and every
      term and condition contained in Article Eleven of the Indenture shall apply
      to
      this Supplemental Indenture with the same force and effect as if the same were
      herein set forth in full, with such omissions, variations and modifications
      thereof as may be appropriate to make the same conform to this Supplemental
      Indenture.

     

    
      
        
        

      

      
        10

        
          

        

      

      
        
        

      

    

         
      ARTICLE V  

     

    MISCELLANEOUS
      PROVISIONS.

     

    This
      Supplemental Indenture may be simultaneously executed in any number of
      counterparts, each of which when so executed shall be deemed to be an original;
      but such counterparts shall together constitute but one and the same
      instrument.

     

    The
      Company acknowledges and intends that all advances made to it by the Lenders
      under the Credit Agreement, including future advances whenever hereafter made,
      shall be a lien from the time this Supplemental Indenture is
      recorded, as provided in Section 15-1302(b)(1) of the Illinois Mortgage
      Foreclosure Law (the “Act”), 735 ILCS 15-1101, et seq. The amount of the bonds
      of the 2006 Credit Agreement Series which comprises the principal amount then
      outstanding of the Obligations under the Credit Agreement constitutes revolving
      credit indebtedness secured by a mortgage on real property, pursuant to the
      terms and conditions of 205 ILCS 5/5d from the date of this Supplemental
      Indenture.

     

    
      
        
        

      

      
        11

        
          

        

      

      
        
        

      

    

    

    IN
      WITNESS WHEREOF, said Illinois Power Company has caused this Supplemental
      Indenture to be executed on its behalf by an Authorized Executive Officer as
      defined in the Indenture, and this Supplemental Indenture to be attested by
      an
      Authorized Executive Officer as defined in the Indenture; and said BNY Midwest
      Trust Company, as successor trustee to Harris Trust and Savings Bank, in
      evidence of its acceptance of the trust hereby created, has caused this
      Supplemental Indenture to be executed on its behalf by its President or one
      of
      its Vice Presidents and this Supplemental Indenture to be attested by its
      Secretary or one of its Vice Presidents; all as of the 31st day of August,
      2006.

     

    
      	 	
              ILLINOIS
                POWER COMPANY

               

            
	 	
              By 
                /s/
                Jerre E.
                Birdsong                     
                

              Name:
                Jerre E. Birdsong

              Title:  Vice
                President and Treasurer 

            
	 	 
	
              ATTEST:

            	 
	 	 
	
              By: /s/
                G. L.
                Waters             
                

            	 
	
              Name:  
                G. L. Waters

              Title:    
                Assistant Secretary

            	 

    

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    

    
      	 	 
	
              BNY
                MIDWEST TRUST COMPANY, successor 

              trustee
                to Harris Trust and Savings, Bank, 

              TRUSTEE,

            
	 
	 
	
              By:
                 /s/
                M.
                Callahan                                
                

              AUTHORIZED
                SIGNATORY

            
	 	 
	 	 
	 	 
	 	 
	
              ATTEST:

            	 
	 	 
	
              By:
                /s/
                D.G.
                Donovan           
                

            	 
	
              Name: 
                D.G. Donovan

              Title:  Vice
                President 

            	 

    

    

    

    

    STATE
      OF
      MISSOURI )

                                             
      ) SS.

    CITY
      OF
      ST. LOUIS      )

     

    BE
      IT
      REMEMBERED, that on this 31st day of August, 2006, before me, the undersigned,
      a
      Notary Public within and for the City and State aforesaid, personally came
      Jerre
      E. Birdsong, Vice President and Treasurer and G. L. Waters, Assistant Secretary,
      of Illinois Power Company, a corporation duly organized, incorporated and
      existing under the laws of the State of Illinois, who are personally known
      to me
      to be such officers, and who are personally known to me to be the same persons
      who executed as such officers the within instrument of writing, and such persons
      duly acknowledged that they signed and delivered the said instrument as their
      free and voluntary act as such officers and as the free and voluntary act of
      said Illinois Power Company for the uses and purposes therein set
      forth.

     

    IN
      WITNESS WHEREOF, I have hereunto subscribed my name and affixed my official
      seal
      on the day and year last above written.

     

    
      	
              By: /s/
                Carla J.
                Flinn           
                 

              NOTARY
                PUBLIC

            
	 

    

     

    My
      Commission Expires on 4/20/2010.

    (NOTARIAL
      SEAL)

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    STATE
      OF
      ILLINOIS )

      
      ) SS.

    COUNTY
      OF
      COOK   )

     

    BE
      IT
      REMEMBERED, that on 28th day of August, 2006, before me, the undersigned, a
      Notary Public within and for the County and State aforesaid, personally came
      M.
      Callahan, and D. G. Donovan, Authorized Signatory and D.G. Donovan, Vice
      President, of BNY Midwest Trust Company, a corporation duly organized,
      incorporated and existing under the laws of the State of Illinois, who are
      personally known to me to be the same persons who executed as such officers
      the
      within instrument of writing, and such persons duly acknowledged that they
      signed, sealed and delivered the said instrument as their free and voluntary
      act
      as such officers, and as the free and voluntary act of said BNY Midwest Trust
      Company for the uses and purposes therein set forth.

     

    IN
      WITNESS WHEREOF, I have hereunto subscribed my name and affixed my official
      seal
      on the day and year last above written.

     

    
      	
              By: /s/
                Julie
                Braun           
                 

              NOTARY
                PUBLIC, COOK COUNTY, 

              ILLINOIS

            
	 

    

     

    My
      Commission Expires on 6/23/10

    (NOTARIAL
      SEAL)

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