INDIANA MICHIGAN POWER CO
POS AMC, 1999-09-17
ELECTRIC SERVICES
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                                                                File No. 70-6458



                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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


                         Post-Effective Amendment No. 23

                                       to

                                    FORM U-1

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


                           APPLICATION OR DECLARATION

                                      under

                THE PUBLIC UTILITY HOLDING COMPANY ACT OF 1935

                                      ***

                         INDIANA MICHIGAN POWER COMPANY
            One Summit Square, P.0. Box 60, Fort Wayne, Indiana 46801
                  (Name of company filing this statement and
                    address of principal executive offices)

                                      ***

                      AMERICAN ELECTRIC POWER COMPANY, INC.
                     1 Riverside Plaza, Columbus, Ohio 43215
                     (Name of top registered holding company
                     parent of each applicant or declarant)

                                      ***

                        A. A. Pena, Senior Vice President
                  American Electric Power Service Corporation
                     1 Riverside Plaza, Columbus, Ohio 43215

                         Susan Tomasky, General Counsel
                  American Electric Power Service Corporation
                   1 Riverside Plaza, Columbus,  Ohio 43215
                  (Names and addresses of agents for service)

The  undersigned  Indiana  Michigan Power Company,  formerly  Indiana & Michigan
Electric  Company   ("I&M"),   hereby  amends  as  follows  its  Application  or
Declaration on Form U-1 in File No. 70-6458, as heretofore amended:

      1. By substituting "Eighth Supplemental  Indenture" for the words "Seventh
      Supplemental  Indenture"  where they appear in the fifth  paragraph of the
      paragraphs  added to Item 1 by  Post-Effective  Amendment  No.  22 in this
      File.

      2. By supplying the following exhibits:

            B-4-6       Form of Fourth Amendment to Agreement of Sale

            B-7-7       Form of  Eighth  Supplemental  Indenture  between  the
                        City and the Trustee


                                    SIGNATURE

      Pursuant to the  requirements of the Public Utility Holding Company Act of
1935, the undersigned company has duly caused this Post-Effective  Amendment No.
23 to be signed on its behalf by the undersigned thereunto duly authorized.


                              INDIANA MICHIGAN POWER COMPANY



                              By      /s/ A. A. Pena
                           Vice President




Dated:  September 17, 1999

                                                                   EXHIBIT B-4-6

      FOURTH AMENDMENT TO AGREEMENT OF SALE


      FOURTH  AMENDMENT,  dated as of the ____ day of  _________,  1999,  by and
between the CITY OF ROCKPORT,  INDIANA,  a municipal  corporation  and political
subdivision  of the State of Indiana  ("Issuer"),  and  INDIANA  MICHIGAN  POWER
COMPANY,  a corporation  organized  and existing  under the laws of the State of
Indiana ("Company"),  to the Agreement of Sale, dated as of December 1, 1984, as
amended by the First  Amendment to the  Agreement  of Sale,  dated as of July 1,
1985,  the Second  Amendment to the Agreement for Sale,  dated as of February 1,
1995,  and the Third  Amendment to the Agreement  for Sale,  dated as of June 1,
1995, between the Issuer and the Company ("Existing Agreement");


                             W I T N E S S E T H :


      WHEREAS,  the Issuer  proposes to issue  $50,000,000  aggregate  principal
amount of its Pollution  Control Revenue Refunding Bonds (Indiana Michigan Power
Company  Project),  Series 1999 Bonds ("Series 1999 Bonds"),  as Refunding Bonds
pursuant  to Section  2.11 of its  Indenture  of Trust,  dated as of December 1,
1984, as supplemented and amended ("Indenture"), with Norwest Bank Indiana, N.A.
(formerly  Lincoln  National Bank and Trust  Company of Fort Wayne),  as Trustee
("Trustee"); and

      WHEREAS, the Issuer and the Company desire to amend the Existing Agreement
in  connection  with the issuance of the Series 1999 Bonds,  pursuant to Section
9.6 of the Existing Agreement and Section 11.01(v) of the Indenture; and

      WHEREAS,  Section 9.6 of the Existing Agreement provides that the Existing
Agreement may not be amended, changed, modified, altered or terminated except in
accordance with the Indenture; and

      WHEREAS,  Section  11.01(v) of the Indenture  provides that the Issuer and
the Trustee shall, without the consent of or notice to the bondholders,  consent
to any amendment, change or modification of the Existing Agreement in connection
with the issuance of Refunding  Bonds pursuant to Section 2.11 of the Indenture;
and

      WHEREAS,  the  Trustee has so  consented  to this  Fourth  Amendment  to
Agreement of Sale;

      NOW, THEREFORE, the Issuer and the Company covenant and agree as follows:

      Section 1. The  definition  of "Bond Fund" in Section 1.1 of the  Existing
Agreement is amended to read as follows:

            "'Bond Fund' shall mean, as the context may require:

            (i)     the 1985 Bond Fund  established by the First  Supplemental
      Indenture relating to the Series 1985 A Bonds;

            (ii)  the  Adjustable  1985  Bond  Fund  established  by the  Second
      Supplemental Indenture relating to the Adjustable Series 1985 A Bonds;

            (iii)  the  Fixed  Rate  1985  Bond  Fund  established  by the Third
      Supplemental Indenture relating to the Fixed Rate Series 1985 A Bonds;

            (iv)  the 1995  Bond  Fund  established  by the  Fifth  Supplemental
      Indenture relating to the Series 1995 A Bonds;

            (v)  the  Series  1995  B  Bond  Fund   established   by  the  Sixth
      Supplemental Indenture relating to the Series 1995 B Bonds; or

            (iv)  the  Series  1999  Bond  Fund   established   by  the  Seventh
      Supplemental Indenture relating to the Series 1999 Bonds."

      Section 2.  Section 3.7 of the  Existing  Agreement  is amended to add the
following paragraph at the end thereof:

            "The  Issuer will cause any moneys held as a part of the Series 1999
      Bond Fund to be invested or  reinvested  by the Trustee  (through its bond
      department  if it so  desires),  at the  request  of and  directed  by the
      Company,  only in (a) Government  Obligations;  (b) obligations  issued or
      guaranteed by an  instrumentality of the United States of America pursuant
      to authority  granted by the Congress of the United  States;  (c) interest
      bearing  accounts,  time  deposits or  certificates  of deposit  which are
      secured  by  obligations  of the type  described  in clause (a) above with
      maturities of less than 365 days and ratings of A-1 by S&P or F-1 by Fitch
      or which are issued by banks or trust  companies,  including  the Trustee,
      with  maturities of less than 365 days and ratings of A-1 by S&P or F-1 by
      Fitch,  organized  under the laws of the  United  States of America or any
      state  thereof,  which  have  combined  capital  and  surplus  of at least
      $10,000,000;  (d)  obligations  issued or  guaranteed  by any state of the
      United States or the District of Columbia, or any political subdivision of
      any such  state or  District,  rated AAA or  better  by S&P or Fitch;  (e)
      commercial  paper or  finance  company  paper  rated  A-1 by S&P or F-1 by
      Fitch,  respectively;  (f) bankers  acceptances  drawn on and  accepted by
      commercial banks; or (g) repurchase agreements fully secured by any one or
      more of the foregoing with maturities of less than 365 days and ratings of
      A-1 by S&P or F-1 by Fitch.  Any moneys  held as part of the  Series  1999
      Bond Fund invested or reinvested as described  above and to be used to pay
      holders of the Series 1999 Bonds shall  mature as needed to make  payments
      when due on such Series 1999 Bonds."

      IN WITNESS  WHEREOF,  the Issuer and the  Company  have caused this Fourth
Amendment  to  Agreement  of Sale to be executed in their  respective  corporate
names and their  respective  corporate seals to be hereunto affixed and attested
by their duly authorized officers, all as of the date first above written.

                                          CITY OF ROCKPORT, INDIANA


                                          By  __________________________
                                                        Mayor

(SEAL)


Attest:


- -----------------------------
      Clerk-Treasurer



                                          INDIANA MICHIGAN POWER COMPANY


                                          By ___________________________
                                                      Vice President
(SEAL)

Attest:


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

                                                                   EXHIBIT B-7-7

                                                                           DRAFT
                                                                        08/27/99

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


                     EIGHTH SUPPLEMENTAL INDENTURE OF TRUST

                                     BETWEEN

                            CITY OF ROCKPORT, INDIANA

                                       and

                           NORWEST BANK INDIANA, N.A.

                                     Trustee


                        Dated as of ____________ 1, 1999

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



                                       This instrument was prepared by:

                                       Theodore J. Esping, Esq.
                                       Baker & Daniels
                                       300 North Meridian Street
                                   Suite 2700
                           Indianapolis, Indiana 46204


            THIS   EIGHTH   SUPPLEMENTAL   INDENTURE   OF  TRUST  (the   "Eighth
Supplemental Indenture"),  made as of the first day of __________,  1999, by and
between the CITY OF ROCKPORT,  INDIANA,  a municipal  corporation  and political
subdivision  of the State of Indiana (the  "Issuer"),  and NORWEST BANK INDIANA,
N.A.,  a national  banking  association  existing and  authorized  to accept and
execute  trusts of the character  herein set out under and by virtue of the laws
of the United States,  with its principal corporate trust office located in Fort
Wayne, Indiana, as Trustee (the "Trustee");


                             W I T N E S S E T H :

            WHEREAS,  the  Issuer has issued  $110,000,000  aggregate  principal
amount of its  Pollution  Control  Revenue  Bonds  (Indiana & Michigan  Electric
Company Project), Series 1984 A (the "Series A Bonds"), pursuant to Indiana Code
36-7-11.9 and Indiana Code 36-7-12 (collectively, the "Act") and an Indenture of
Trust dated as of December  1, 1984 (the "1984  Indenture"),  between the Issuer
and  the  Trustee  for  the  purpose  of  acquiring,  constructing,  installing,
equipping  and  financing  the portion of certain  facilities  designed  for the
abatement or control of atmospheric and water pollution, including collection of
sewage or disposal of solid waste (the  "Project"),  at the Rockport  Generating
Station owned by Indiana  Michigan  Power  Company (the  "Company") as tenant in
common without right of partition with AEP Generating Company,  which facilities
were sold to the Company  pursuant to an  Agreement of Sale dated as of December
1, 1984, as amended (the "Agreement"), between the Issuer and the Company; and

            WHEREAS,  the  Issuer  has  issued  simultaneously  (a)  $50,000,000
aggregate  principal amount of its Floating Rate Weekly Demand Pollution Control
Revenue Refunding Bonds (Indiana & Michigan  Electric Company  Project),  Series
1985 A (the  "Floating  Rate Weekly Demand Series 1985 A Bonds"),  pursuant to a
First  Supplemental  Indenture  of Trust,  dated as of July 1, 1985 (the  "First
Supplemental  Indenture"),  as Refunding  Bonds  pursuant to Section 2.11 of the
1984 Indenture to refund a portion of $110,000,000 aggregate principal amount of
the Series A Bonds  which  matured by their  terms on  December  16,  1985,  (b)
$50,000,000  aggregate  principal amount of its Adjustable Rate Tender Pollution
Control Revenue  Refunding Bonds (Indiana & Michigan  Electric Company Project),
Series  1985 A (the  "Adjustable  Series  1985 A Bonds"),  pursuant  to a Second
Supplemental  Indenture  of  Trust,  dated  as of  July  1,  1985  (the  "Second
Supplemental Indenture") as Refunding Bonds pursuant to Section 2.11 of the 1984
Indenture to refund a portion of $110,000,000  aggregate principal amount of the
Series A Bonds  which  matured by their  terms on  December  16,  1985,  and (c)
$50,000,000  aggregate  principal  amount of its Fixed  Rate  Pollution  Control
Revenue Bonds (Indiana & Michigan Electric Company Project),  Series 1985 A (the
"Fixed Rate Series 1985 A Bonds"), pursuant to a Third Supplemental Indenture of
Trust,  dated  as of  July 1,  1985  (the  "Third  Supplemental  Indenture")  as
Refunding  Bonds  pursuant  to Section  2.11 of the 1984  Indenture  to refund a
portion of $110,000,000  aggregate  principal amount of the Series A Bonds which
matured by their terms on December 16, 1985 and as Additional  Bonds pursuant to
Section 2.10 of the 1984 Indenture to finance a portion of the estimated Cost of
Construction,  as defined in the Agreement,  of the Project not theretofore paid
by application of the Series A Bond proceeds;

            WHEREAS,  the  Issuer  has  simultaneously  issued  (a)  $50,000,000
aggregate  principal  amount of its 6.55% Pollution  Control  Revenue  Refunding
Bonds  (Indiana  Michigan  Power Company  Project),  Series 1995 A ("Series 1995
Bonds"),  pursuant to the Fifth  Supplemental  Indenture  of Trust,  dated as of
February 1, 1995 ("Fifth Supplemental  Indenture"),  as Refunding Bonds pursuant
to Section  2.11 of the 1984  Indenture  to refund the Fixed Rate  Series 1985 A
Bonds; and (b) $50,000,000  aggregate  principal amount of its Pollution Control
Revenue Refunding Bonds (Indiana Michigan Power Company Project),  Series 1995 B
("Series 1995 B Bonds"),  pursuant to the Sixth Supplemental  Indenture of Trust
dated as of June 1, 1995,  as  Refunding  Bonds  pursuant to Section 2.11 of the
1984 Indenture to refund the Adjustable Series 1985 A Bonds; and

            WHEREAS,  the Issuer has determined to issue  $50,000,000  aggregate
principal  amount of its Pollution  Control  Revenue  Refunding  Bonds  (Indiana
Michigan  Power  Company  Project),  Series 1999 (the "Series 1999  Bonds"),  as
Refunding  Bonds  pursuant to Section  2.11 of the 1984  Indenture to refund the
Floating Rate Weekly Demand Series 1985 A Bonds at their  redemption on December
1, 1999 pursuant to the Act and Indiana Code 5-1-5; and

            WHEREAS,  the Issuer has determined that the Series 1999 Bonds to be
issued  hereunder and the  certificate  of  authentication  by the Trustee to be
endorsed on all Series 1999 Bonds shall be,  respectively,  substantially in the
following forms with such  variations,  omissions and insertions as are required
or permitted by the 1984 Indenture, as amended and supplemented,  or this Eighth
Supplemental Indenture:

                             (FORM OF FRONT OF BOND)


No. R-_____                                                        $__________


                            UNITED STATES OF AMERICA
                                STATE OF INDIANA

                            CITY OF ROCKPORT, INDIANA
                   POLLUTION CONTROL REVENUE REFUNDING BOND
                   (INDIANA MICHIGAN POWER COMPANY PROJECT)
                                   SERIES 1999


MATURITY DATE:  _______________                         CUSIP:  ______________

REGISTERED OWNER:

PRINCIPAL AMOUNT:                                                      DOLLARS


            The  City  of  Rockport,  a  municipal   corporation  and  political
subdivision of the State of Indiana (the "Issuer"),  for value received,  hereby
promises to pay,  solely from the sources and as  hereinafter  provided,  to the
registered  owner stated  above,  or  registered  assigns,  on the maturity date
stated  above  or upon  earlier  redemption  hereof  upon the  presentation  and
surrender  hereof,  the principal  amount stated above together with interest on
said principal amount from _________ 1 or _________ 1 next preceding the date on
which it is authenticated (unless this Bond is authenticated prior to __________
1, 1999,  in which case it shall bear  interest  from the date  hereof or unless
this Bond is  authenticated on a __________ 1 or ___________ 1, in which case it
shall bear interest from such ________ 1 and ________ 1), payable  semi-annually
on ______ 1 and __________ 1 of each year commencing  ____________ 1, 1999 until
payment of said principal sum at the rate of  ________________  per cent (____%)
per annum.  The  principal  of this Bond is payable at the  principal  office of
Norwest Bank Indiana,  N.A. (formerly Lincoln National Bank and Trust Company of
Fort Wayne), in Fort Wayne,  Indiana, as Trustee, or its successor in trust (the
"Trustee")  under the  Indenture;  provided,  however,  interest on this Bond is
payable by check mailed to the  registered  owner  hereof.  Both  principal  and
interest are payable in lawful money of the United States of America.

            REFERENCE IS HEREBY MADE TO THE FURTHER  PROVISIONS OF THIS BOND SET
FORTH ON THE REVERSE SIDE HEREOF WHICH, FOR ALL PURPOSES HEREOF,  SHALL HAVE THE
FORCE AND EFFECT AS IF PRINTED IN FULL ON THE FRONT HEREOF.

            All acts,  conditions  and  things  required  to happen  exist or be
performed  precedent to the issuance of this bond have happened,  exist and have
been performed.

            This Bond shall not become obligatory for any purpose or be entitled
to any  security or benefit  under the  Indenture  or be valid until the Trustee
shall have executed the Certificate of Authentication appearing hereon.

            This  Bond and the  issue  of  which  it is a part and the  interest
thereon are limited  obligations  of the Issuer payable solely from the revenues
and receipts  derived from the  Agreement of Sale (except to the extent paid out
of money  attributable to Bond proceeds),  which revenues and receipts have been
pledged and assigned to the Trustee to secure payment thereof. The Bonds and the
interest  thereon  shall not be deemed to  constitute  a debt or a pledge of the
faith and credit of the State of Indiana or any  political  subdivision  thereof
other  than the  Issuer,  whose  obligations  in  respect  of the  Bonds and the
interest  thereon are limited as set forth herein and in the Indenture.  Neither
the Issuer,  the State of Indiana nor any other  political  subdivision  thereof
shall be obligated to pay the  principal of the Bonds,  the premium,  if any, or
the interest  thereon or other costs  incident  thereto except from the revenues
and receipts pledged therefor. Neither the faith and credit nor the taxing power
of the Issuer or the State of Indiana or any other political subdivision thereof
is pledged to the payment of the principal of the Bonds, the premium, if any, or
the interest thereon or other costs incident thereto.

            IN WITNESS  WHEREOF,  the City of Rockport,  Indiana has caused this
Bond to be signed by the manual or facsimile signature of its Mayor, its seal to
be affixed  hereto or a facsimile  thereof to be printed  hereon and attested by
the manual or facsimile  signature of its  Clerk-Treasurer,  and this Bond to be
dated ________ 1, 1999.

                                    CITY OF ROCKPORT, INDIANA

                                          By________________________
                                                Mayor

(SEAL)

Attest:


- --------------------------
Clerk-Treasurer

                            (FORM OF REVERSE OF BOND)

            This  Bond is one of an  issue  of  $50,000,000  City  of  Rockport,
Indiana  Pollution  Control  Revenue  Refunding  Bonds  (Indiana  Michigan Power
Company Project),  Series 1999 (the "Bonds"),  of like date and tenor, except as
to number and principal  amount,  authorized and issued pursuant to Indiana Code
36-7-11.9,  Indiana  Code  36-7-12  and Indiana  Code 5-1-5,  for the purpose of
refunding  Floating Rate Weekly Demand Pollution Control Revenue Refunding Bonds
(Indiana  &  Michigan  Electric  Company  Project)  Series  1985 A,  which  were
previously  issued  by  the  Issuer  in  part  for  the  purpose  of  acquiring,
constructing,  installing,  equipping  and  financing,  in part,  the portion of
certain  air and water  pollution  abatement  or control  facilities,  including
sewage or solid  waste  disposal  facilities  (the  "Project")  at the  Rockport
Generating  Station (the "Plant") owned by Indiana  Michigan  Power  Company,  a
corporation  organized and existing  under the laws of the State of Indiana (the
"Company"),  as tenant in common  without right of partition with AEP Generating
Company,  a corporation  organized  and existing  under the laws of the State of
Ohio and duly qualified to do business as a foreign  corporation in the State of
Indiana,  and selling the same to the Company  pursuant to an  Agreement of Sale
dated as of  December  1, 1984 (the "1984  Agreement"),  as amended by the First
Amendment to Agreement of Sale dated as of July 1, 1985, the Second Amendment to
Agreement of Sale dated as of February 1, 1995, the Third Amendment to Agreement
of Sale dated as of June 1, 1995 and as to be amended by the Fourth Amendment to
Agreement of Sale dated as of _______ __, 1999 (the 1984  Agreement,  as amended
by the First  Amendment to Agreement,  the Second  Amendment to  Agreement,  the
Third  Amendment  to Agreement  and the Fourth  Amendment  to  Agreement,  being
hereinafter referred to as the "Agreement of Sale"),  between the Issuer and the
Company.  The Bonds are issued  under an Indenture of Trust dated as of December
1, 1984, as supplemented and amended by a First Supplemental  Indenture of Trust
dated  as of July  1,  1985  (the  "First  Supplemental  Indenture"),  a  Second
Supplemental  Indenture  of  Trust  dated  as  of  July  1,  1985  (the  "Second
Supplemental  Indenture"),  a Third Supplemental  Indenture of Trust dated as of
July 1,  1985  (the  "Third  Supplemental  Indenture"),  a  Fourth  Supplemental
Indenture  of  Trust  dated  as  of  June  1,  1990  (the  "Fourth  Supplemental
Indenture"),  a Fifth  Supplemental  Indenture  of Trust dated as of February 1,
1995 (the "Fifth  Supplemental  Indenture"),  a Sixth Supplemental  Indenture of
Trust dated as of June 1, 1995 (the "Sixth Supplemental  Indenture"),  a Seventh
Supplemental  Indenture  of Trust  dated as of  August  1,  1995  (the  "Seventh
Supplemental Indenture"), and an Eighth Supplemental Indenture of Trust dated as
of _________ 1, 1999 (the "Eighth  Supplemental  Indenture")  (the  Indenture of
Trust,  as supplemented  and amended by the First  Supplemental  Indenture,  the
Second  Supplemental  Indenture,  the Third Supplemental  Indenture,  the Fourth
Supplemental Indenture, the Fifth Supplemental Indenture, the Sixth Supplemental
Indenture,  the  Seventh  Supplemental  Indenture  and the  Eighth  Supplemental
Indenture being referred to herein as the  "Indenture"),  between the Issuer and
the  Trustee  which  assigns to the  Trustee,  as  security  for the Bonds,  the
Issuer's  rights  under the  Agreement  of Sale  (except  for  payment of Issuer
expenses and for indemnification of the Issuer). Reference is hereby made to the
Indenture,  the Agreement of Sale and to all amendments and supplements  thereto
for a description of the  provisions,  among others,  with respect to the nature
and extent of the security, the rights, duties and obligations of the Issuer and
the  Trustee and the rights of the holders of the Bonds and the terms upon which
the Bonds are issued and secured.

            The Bonds may not be called  for  redemption  prior to  ________  1,
____,  except that in the event of the  exercise by the Company of its option to
prepay the entire  purchase price of the Project under  circumstances  involving
(i) the imposition of unreasonable burdens or excessive liabilities with respect
to the  Project  or the Plant,  or the  operation  of the  Project or the Plant,
including taxes not imposed on December 1, 1984 and economic,  technological  or
other changes  making the continued  operation of the Plant  uneconomical,  (ii)
damage to or destruction of the Project or a portion thereof or all or a portion
of the Plant,  (iii)  condemnation of all or substantially all of the Project or
all or a portion of the Plant or (iv) the operation of the Plant being enjoined,
all as provided in Section  8.1(b)  through (e) of the  Agreement  of Sale,  the
Bonds are  subject to  redemption  in whole,  but not in part,  at any time upon
payment of 100% of the principal  amount  thereof plus  interest  accrued to the
redemption date.

            The Bonds are subject to optional  redemption by (at the election of
the Company  without any further  action by the Issuer)  prior to maturity on or
after  ______  __,  ____,  at any time in whole or in part (less than all of the
Bonds to be  redeemed  to be selected  by lot),  upon  payment of the  following
redemption prices (expressed as a percentage of the principal amount of Bonds to
be redeemed) plus accrued interest to the redemption date:

Redemption Dates                                            Redemption
(Dates Inclusive)                                             Price



            If less than all of the Bonds are called for redemption, each $5,000
principal  amount of a Bond having a principal  amount of more than $5,000 shall
be counted as one Bond for the purpose of selecting by lot.

            If any of the Bonds or portions  thereof are called for  redemption,
the Trustee shall cause a notice thereof identifying the Bonds to be redeemed to
be sent by registered  or certified  mail to the  registered  owner of each such
Bond to be redeemed at his address as it appears on the  registration  books not
less than 30 nor more than 60 days prior to the redemption date.  Provided funds
for their  redemption  are on deposit at the place of payment on the  redemption
date, all Bonds or portions thereof so called for redemption shall cease to bear
interest on the redemption date, shall no longer be secured by the Indenture and
shall not be deemed to be outstanding under the provisions of the Indenture.  If
a portion of this Bond shall be called for  redemption,  a new Bond in principal
amount equal to the  unredeemed  portion hereof will be issued to the registered
owner upon the surrender hereof.

            The owner of this Bond shall have no right to enforce the provisions
of the  Indenture,  to institute  action to enforce the covenants  therein or to
take any action with respect to any Event of Default  under the  Indenture or to
institute,  appear  in or  defend  any suit or  other  proceeding  with  respect
thereto,  except as provided in the Indenture. In certain events, on conditions,
in the manner and with the effect set forth in the  Indenture,  the principal of
all the Bonds issued under the Indenture and then  outstanding may become or may
be declared  due and payable  before  their  stated  maturities,  together  with
interest accrued thereon.  Modifications or alterations of the Indenture,  or of
any supplements thereto, may be made only to the extent and in the circumstances
permitted by the Indenture.

            The Bonds are issuable as registered  bonds  without  coupons in the
denominations of $5,000 or any integral multiple thereof.

            This Bond is  transferable  by the  registered  owner  hereof at the
designated  office of the Trustee,  upon surrender of this Bond accompanied by a
duly  executed  instrument  of transfer in form and with  guaranty of  signature
satisfactory  to the  Trustee,  subject to such  reasonable  regulations  as the
Trustee may prescribe,  and upon payment of any tax or other governmental charge
incident to such transfer.  Upon any such  transfer,  a new Bond or Bonds in the
same aggregate principal amount will be issued to the transferee.  Except as set
forth in this Bond and as  otherwise  provided in the  Indenture,  the person in
whose  name this Bond is  registered  shall be deemed  the owner  hereof for all
purposes, and the Issuer, any Paying Agent and the Trustee shall not be affected
by any notice to the contrary.

               (FORM OF TRUSTEE'S CERTIFICATE OF AUTHENTICATION)


            This  Bond is one of the  Bonds  described  in the  within-mentioned
Indenture.

                                    NORWEST BANK INDIANA, N. A.
                                           as Trustee


                                    By__________________________

                                          Authorized Officer
Date:  _________________


                             [FORM OF ABBREVIATIONS]

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

            TEN COM     -     as tenants in common
            TEN ENT     -     as tenants by the entireties
             JT TEN     -     as joint tenants with right of survivorship and
                            not as tenants in common

UNIF TRANF MIN ACT      -     ___________ Custodian _________________
                              (Cust)                        (Minor)

                              Under Uniform Transfer to Minors Act

                              ---------------------------------
                                     (State)

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

                              [FORM OF ASSIGNMENT]

            FOR VALUE  RECEIVED,  the  undersigned  hereby  sells,  assigns  and
transfers unto  ___________________________  (Please  insert Social  Security or
taxpayer identification number of assignee)
================================================================
- ----------------------------------------------------------------
(Please Print or Typewrite Name and Address of Assignee)
- ----------------------------------------------------------------
the  within  Bond,  and all  rights  thereunder,  and  hereby  does  irrevocably
constitute  and appoint  _____________________________  Attorney to transfer the
within Bond on the books kept for the registration  thereof,  with full power of
substitution in the premises.

Dated:

                                    ------------------------------
                                    NOTICE:  The  signature  to this  assignment
                                    must  correspond with the name as it appears
                                    upon  the face of the  within  Bond in every
                                    particular,     without     alteration    or
                                    enlargement or any change whatever.

Signature Guaranteed:         ________________________________
                                    NOTICE:  Signature(s) must be guaranteed
                                    by an Eligible Guarantor Institution such
                                    as a Commercial Bank, Trust Company,
                                    Securities Broker/Dealer, Credit Union,
                                    or Savings Association who is a member of
                                    a medallion program approved by The
                                    Securities Transfer Association, Inc.


                            [STATEMENT OF INSURANCE]

            Municipal Bond  Insurance  Policy No. (the "Policy") with respect to
payments due for principal of and interest on this bond has been issued by AMBAC
Indemnity Corporation ("AMBAC Indemnity").  The Policy has been delivered to the
United  States Trust Company of New York,  New York,  New York, as the Insurance
Trustee  under  said  Policy and will be held by such  Insurance  Trustee or any
successor insurance trustee.  The policy is on file and available for inspection
at the  principal  office of the  Insurance  Trustee  and a copy  thereof may be
secured from AMBAC Indemnity or the Insurance Trustee.  All payments required to
be made  under  the  Policy  shall be made in  accordance  with  the  provisions
thereof.  The owner of this bond  acknowledges  and consents to the  subrogation
rights of AMBAC Indemnity as more fully set forth in the Policy.

and

            WHEREAS,  all  things  necessary  have  been done and  performed  to
constitute  this Eighth  Supplemental  Indenture  a valid and binding  agreement
securing the payment of the principal of,  premium,  if any, and interest on all
bonds issued and to be issued  hereunder and under the 1984  Indenture (the 1984
Indenture,  as  supplemented  by the First  Supplemental  Indenture,  the Second
Supplemental   Indenture,   the  Third   Supplemental   Indenture,   the  Fourth
Supplemental   Indenture  of  Trust,  dated  as  of  June  1,  1990,  the  Fifth
Supplemental  Indenture  of  Trust,  dated as of  February  1,  1995,  the Sixth
Supplemental  Indenture  of  Trust,  dated  as of  June  1,  1995,  the  Seventh
Supplemental  Indenture  of Trust,  dated as of August 1, 1995,  and this Eighth
Supplemental  Indenture,  being referred to herein as the  "Indenture")  and the
execution and delivery of this Eighth  Supplemental  Indenture and the execution
and issuance of the Series 1999 Bonds have in all respects been authorized;


            NOW,  THEREFORE,  the Issuer hereby  agrees and  covenants  with the
Trustee and with the respective  owners,  from time to time of the Series 1985 A
Bonds, the Fixed Rate Series 1995 A Bonds,  the Adjustable  Series 1995 B Bonds,
and the Series 1999 Bonds, or any part thereof, as follows:



                                    ARTICLE I

                          PURPOSE OF SERIES 1999 BONDS


            SECTION 1.01 Purpose of Series 1999 Bonds.  The Series 1999 Bonds of
the Issuer are  authorized for the purpose of refunding the Floating Rate Weekly
Demand Series 1985 A Bonds at their redemption on December 1, 1999.


                                   ARTICLE II

                             THE SERIES 1999 BONDS;
                                 1999 BOND FUND

            SECTION  2.01.  Issuance  of Series  1999  Bonds.  There are  hereby
authorized  to be issued  Pollution  Control  Revenue Bonds of the Issuer in the
aggregate  principal amount of Fifty Million Dollars  ($50,000,000) as Refunding
Bonds pursuant to Section 2.11 of the Indenture.  Said Bonds shall be designated
"City of Rockport,  Indiana  Pollution  Control Revenue Refunding Bonds (Indiana
Michigan Power Company  Project),  Series 1999",  shall be dated as of the first
day of ________,  1999,  shall bear interest  payable  semiannually on the first
days of _______ and _____________,  at the rate of _________ per centum (_____%)
per  annum  and  shall  mature,  subject  to the  right of prior  redemption  as
hereinafter set forth, on __________ 1, ____.

            Both  principal  of and  interest  on the Series 1999 Bonds shall be
payable  in lawful  money of the  United  States of  America,  but only from the
revenues and receipts  pledged to the payment  thereof as provided herein and in
the Indenture.

            SECTION 2.02. Form of Series 1999 Bonds. The Series 1999 Bonds shall
be issued  substantially  in the form of the Series  1999 Bond  hereinabove  set
forth,  with  such  appropriate  variations,  omissions  and  insertions  as are
permitted or required by the Indenture or this Eighth Supplemental Indenture.

            Initially,  one certificate for the Series 1999 Bonds will be issued
and registered to the Securities  Depository (as defined below), or its nominee.
The  Issuer  and the  Trustee  may enter  into a Letter of  Representations  (as
defined  below)  relating  to a  book-entry  system  to  be  maintained  by  the
Securities Depository with respect to the Series 1999 Bonds.

            In the event that (a) the  Securities  Depository  determines not to
continue to act as a securities  depository  for the Series 1999 Bonds by giving
notice to the Trustee and the Issuer discharging its responsibilities hereunder,
or (b) the  Issuer  determines  (at  the  direction  of the  Company)  (i)  that
beneficial  owners of Series  1999  Bonds  shall be able to obtain  certificated
Series  1999  Bonds or (ii) to  select  a new  Securities  Depository,  then the
Trustee  shall,  at the direction of the Issuer (at the request of the Company),
attempt to locate another qualified securities depository to serve as Securities
Depository or  authenticate  and deliver  certificated  Series 1999 Bonds to the
beneficial  owners or to the  Securities  Depository  participants  on behalf of
beneficial  owners  substantially  in the form provided for in this Section.  In
delivering certificated Series 1999 Bonds, the Trustee shall be entitled to rely
on the records of the Securities  Depository as to the beneficial  owners or the
records of the Securities Depository participants acting on behalf of beneficial
owners.   Such  certificated   Series  1999  Bonds  will  then  be  registrable,
transferable and exchangeable as set forth in this Indenture.

            So long as there is a  Securities  Depository  for the  Series  1999
Bonds (1) it or its  nominee  shall be the  registered  owner of the Series 1999
Bonds,  (2)   notwithstanding   anything  to  the  contrary  in  the  Indenture,
determinations of persons entitled to payment of principal, premium, if any, and
interest,  transfers of ownership  and exchanges and receipt of notices shall be
the  responsibility of the Securities  Depository and shall be effected pursuant
to rules and  procedures  established  by such  Securities  Depository,  (3) the
Issuer,  the  Company  and the Trustee  shall not be  responsible  or liable for
maintaining,  supervising or reviewing the records  maintained by the Securities
Depository,  its participants or persons acting through such  participants,  (4)
references in the Indenture to registered  owners of the Series 1999 Bonds shall
mean such Securities Depository or its nominee and shall not mean the beneficial
owners  of the  Series  1999  bonds  and (5) in the  event of any  inconsistency
between the  provisions  of the  Indenture  and the  provisions of the Letter of
Representations such provisions of the Letter of Representations,  except to the
extent  set forth in this  paragraph  and the next  preceding  paragraph,  shall
control.

            For purposes of this  Section,  the  following  terms shall have the
following meanings:

            "Letter of Representations" means the Letter of Representations from
the Issuer and the Trustee to the Securities Depository and (with the consent of
the Company) any amendments thereto, or successor  agreements between the Issuer
and  the  Trustee  and  any  successor  Securities  Depository,  relating  to  a
book-entry system to be maintained by the Securities  Depository with respect to
the Series 1999 Bonds.

            "Securities  Depository"  means  The  Depository  Trust  Company,  a
corporation  organized and existing under the laws of the State of New York, and
any other securities  depository for the Series 1999 Bonds appointed pursuant to
this Section, and their successors.

            SECTION 2.03. Execution,  Authentication and Delivery of Series 1999
Bonds. The Series 1999 Bonds shall be executed, authenticated and delivered, and
the  proceeds  therefrom  deposited,  as  provided  in Section  2.11 of the 1984
Indenture and Section 3.2(c) of the Agreement.

            SECTION 2.04.  Creation of 1999 Bond Fund.

            (a) There is hereby created and established with the Trustee a trust
fund in the name of the  Issuer  to be  designated  "City of  Rockport,  Indiana
Pollution  Control  Revenue  Refunding  Bonds  (Indiana  Michigan  Power Company
Project),  Series  1999 Bond Fund" (the  "1999 Bond  Fund").  The 1999 Bond Fund
shall be a  segregated  trust  fund held for the  benefit  of the  owners of the
Series 1999 Bonds.

            (b) There shall be deposited into the 1999 Bond Fund (i) all accrued
interest,  if any,  received  upon the sale of the 1999 Bonds and (ii) all other
moneys  received by the Trustee  under and pursuant to any of the  provisions of
the Indenture or the Agreement  which are required or which are  accompanied  by
directions  from the Company  that such moneys are to be paid into the 1999 Bond
Fund.


                                   ARTICLE III

                            REDEMPTION OF SERIES 1999
                              BONDS BEFORE MATURITY

            SECTION 3.01. Redemption. Any and all of the Series 1999 Bonds shall
be  redeemable  as set forth in the form of Series  1999  Bond  hereinabove  set
forth.  Reference  is  hereby  made  to  Article  III of the  Indenture  for the
provisions describing the methods and effects of redemption.


                                   ARTICLE IV

                             COVENANTS AND SECURITY

            SECTION 4.01.  Authority;  Compliance  with  Conditions.  The Issuer
covenants  that it is duly  authorized  under the laws of the State of  Indiana,
including  particularly and without limitation the Act, to issue the Series 1999
Bonds  authorized  hereby and to execute  and deliver  this Eighth  Supplemental
Indenture,  to assign and pledge the  Agreement  and the  revenues  and receipts
payable under the Agreement,  to grant a security interest therein and to pledge
the revenues and  receipts in the manner and to the extent  contemplated  herein
and in the  Indenture;  that  all of the  requirements  and  conditions  for the
execution and delivery of this Eighth Supplemental Indenture have been satisfied
and complied with; that all other action on its part necessary for the execution
and delivery of this Eighth Supplemental Indenture has been duly and effectively
taken; and that the Series 1999 Bonds in the hands of the owners thereof are and
will be valid and enforceable  obligations of the Issuer  according to the terms
thereof and hereof.

            SECTION  4.02.  Security  for Series  1999  Bonds;  Confirmation  of
Indenture.  The Series 1999 Bonds shall be equally and ratably  secured  (except
insofar as any guaranty, letter of credit, insurance policy, first mortgage bond
or other  collateral or instrument  of credit  enhancement  provided by a person
other  than the  Issuer  may  afford  additional  security  for the Bonds of any
particular  series) under the Indenture with all outstanding Bonds and any other
series of bonds  which may be issued  pursuant  to  Section  2.10 or 2.11 of the
Indenture,  without  preference,  priority or  distinction of any bonds over any
other  bonds.  As  supplemented  and  amended,  the  Indenture  is ratified  and
confirmed  (except  as set forth  herein),  and the  Indenture,  including  each
supplemental  indenture,  shall be read, taken and construed as one and the same
instrument.  All  covenants,  agreements  and  provisions  of, and all  security
(except as set forth herein),  provided  under,  the Indenture  shall apply with
full force and effect to the Series 1999 Bonds and to the owners thereof (except
insofar as any guaranty, letter of credit, insurance policy, first mortgage bond
or other  collateral or instrument  of credit  enhancement  provided by a person
other  than the  Issuer  may  afford  additional  security  for the Bonds of any
particular series).


                                    ARTICLE V

                             AMENDMENT OF INDENTURE

            SECTION  5.01  Amendment  to  Section  12.01 The last  paragraph  of
Section 12.01 of the 1984 Indenture is amended by adding the following  sentence
at the end of the paragraph:

            "The Trustee may  establish a record date with respect to the Series
            1999 Bonds for purposes of this Section 12.01, with no provision for
            revocation of consents, requests, directions,  approvals, objections
            or other instruments by subsequent owners after the record date."


                                   ARTICLE VI

                          SPECIAL INSURANCE PROVISIONS

      Section 6.01. Concerning the Special Insurance Provisions.  The provisions
of this Article VI shall apply notwithstanding  anything in the Indenture to the
contrary,  but only so long as (i) the Policy  remains in full force and effect,
(ii) the  Insurer is not in default in its  obligations  under the  Policy,  and
(iii) the Series 1999 Bonds remain  outstanding (as defined in the Indenture and
Section 6.08 hereof).

      Section 6.02.  Consent of the Insurer in Addition to  Bondholder  Consent.
Unless otherwise  provided in this Section,  the Insurer's written consent shall
be required (in addition to bondholder consent, when required) for the following
purposes:  (i)  execution  and  delivery of any  supplemental  indenture  or any
amendment,  supplement  or change to or  modification  of the Agreement of Sale;
(ii) removal of the Trustee or Paying Agent and selection and appointment of any
successor  trustee or paying  agent;  and (iii)  initiation  or  approval of any
action not described in (i) or (ii) above which requires bondholder consent.

      Section 6.03. Insurer's Consent Upon Default. Anything in the Indenture to
the contrary notwithstanding, upon the occurrence and continuance of an Event of
Default under the Indenture, the Insurer shall be entitled to control and direct
the  enforcement  of all rights and remedies  granted to the  bondholders or the
Trustee  for the  benefit of the  bondholders  under the  Indenture,  including,
without limitation, (i) the right to accelerate the principal of the Series 1999
Bonds as described in the Indenture and (ii) the right to annul any  declaration
of  acceleration,  and the Insurer shall also be entitled to approve all waivers
of events of default.

      Section  6.04.  Acceleration  Rights.  Upon the  occurrence of an Event of
Default,  the Trustee may,  with the consent of the Insurer,  and shall,  at the
direction  of the  Insurer  or 25% of the  bondholders  with the  consent of the
Insurer, by written notice to the Issuer and the Insurer,  declare the principal
of the Series  1999 Bonds to be  immediately  due and  payable,  whereupon  that
portion of the  principal  of the Series 1999 Bonds  thereby  coming due and the
interest  thereon accrued to the date of payment shall,  without further action,
become and be immediately  due and payable,  anything in the Indenture or in the
Series 1999 Bonds to the contrary notwithstanding.

      Section  6.05.  Amendments.  Any  provision  of  the  Indenture  expressly
recognizing  or  granting  rights in or to the Insurer may not be amended in any
manner  which  affects  the rights of the  Insurer  hereunder  without the prior
written consent of the Insurer.

      Section 6.06.  Notices and Information.

             (a) The Trustee  shall  furnish to the Insurer a copy of any notice
to be given to the  registered  owners  of the  Series  1999  Bonds,  including,
without limitation, notice of any redemption of or defeasance of the Series 1999
Bonds, and any certificate  rendered  pursuant to the Indenture  relating to the
security for the Series 1999 Bonds.

      (b) The Trustee or the Issuer  shall  notify the Insurer of any failure of
the Company to provide relevant notices, certificates, etc.

      (c)  Notwithstanding  any other  provision of the  Indenture,  the Trustee
shall  immediately  notify the  Insurer  if at any time  there are  insufficient
moneys to make any  payments  of  principal  and/or  interest  as  required  and
immediately upon the occurrence of any Event of Default under the Indenture.

      (d) All notice or other  communication  to be given to the  Insurer  under
this Eighth  Supplemental  Indenture or the Indenture may be given by mailing or
delivering the same in writing to Ambac Assurance Corporation,  One State Street
Plaza, New York, New York 10004, Attention:, in the case of subclause (a) above,
The  Surveillance  Department,  and in all other  cases,  The General  Counsel's
Office.

      Section  6.07.  Payment   Procedures;   Subrogation.   The  Issuer,  the
Trustee and any Paying Agent agree to comply with the following provisions:

      (a) If the Trustee or Paying Agent, if any,  determines that there will be
insufficient  funds to pay the principal of or interest on the Series 1999 Bonds
at maturity or on any Interest  Payment Date, as the case may be, the Trustee or
Paying Agent,  if any, shall so notify the Insurer within one business day after
such  determination.  Such notice  shall  specify the amount of the  anticipated
deficiency,  the Series 1999 Bonds to which such  deficiency is  applicable  and
whether such Series 1999 Bonds will be deficient as to principal or interest, or
both.  The Insurer  will make  payments of  principal  of or interest due on the
Series 1999 Bonds on or before the first business day next following the date on
which the Insurer shall have received  notice of nonpayment  from the Trustee or
Paying Agent, if any.

      (b) The Trustee or Paying Agent, if any, shall, after giving notice to the
Insurer as  provided in (a) above,  make  available  to the Insurer  and, at the
Insurer's  direction,  to the Insurance  Trustee,  the registration books of the
Issuer  maintained  by the  Trustee or Paying  Agent,  if any,  and all  records
relating to the Series 1999 Bonds maintained under the Indenture.

      (c) The Trustee or Paying Agent, if any, shall provide the Insurer and the
Insurance Trustee with a list of registered owners of Series 1999 Bonds entitled
to receive  principal or interest  payments  from the Insurer under the terms of
the Policy,  and shall make  arrangements with the Insurance Trustee (i) to mail
checks to or pay by wire transfer the registered owners of the Series 1999 Bonds
entitled to receive full or partial interest  payments from the Insurer and (ii)
to pay principal upon Series 1999 Bonds  surrendered to the Insurance Trustee by
the  registered  owners of Series 1999 Bonds entitled to receive full or partial
principal payments from the Insurer.

      (d) The Trustee or Paying Agent,  if any,  shall,  at the time it provides
notice to the Insurer  pursuant to (a) above,  notify  registered  owners of the
Series  1999 Bonds  entitled to receive  the  payment of  principal  or interest
thereon from the Insurer (i) as to the fact of such  entitlement,  (ii) that the
Insurer  will remit to them all or a part of the interest  payments  next coming
due upon proof of a Series 1999 Bond owner's  entitlement  to interest  payments
and delivery to the Insurance  Trustee,  in form  satisfactory  to the Insurance
Trustee,  of an  appropriate  assignment  of the  registered  owner's  right  to
payment, (iii) that should they be entitled to receive full payment of principal
from the  Insurer,  they must  surrender  their Series 1999 Bonds (along with an
appropriate  instrument  of  assignment  in form  satisfactory  to the Insurance
Trustee to permit  ownership of such Series 1999 Bonds to be  registered  in the
name of the Insurer) for payment to the Insurance  Trustee,  and not the Trustee
or Paying  Agent,  if any,  and (iv) that  should  they be  entitled  to receive
partial payment of principal from the Insurer,  they must surrender their Series
1999 Bonds for payment thereon first to the Trustee or Paying Agent, if any, who
shall note on such Series 1999 Bonds the  portion of the  principal  paid by the
Trustee or Paying Agent, if any, and then, along with an appropriate  instrument
of assignment in form  satisfactory to the Insurance  Trustee,  to the Insurance
Trustee, which will then pay the unpaid portion of principal.

      (e) In the event that the Trustee or Paying Agent, if any, has notice that
any  payment of  principal  of or  interest  on the Series  1999 Bonds which has
become Due for  Payment (as defined in the Policy) and which is made to an owner
of a  Series  1999  Bond  by or on  behalf  of the  Issuer  has  been  deemed  a
preferential  transfer  and  theretofore  recovered  from its  registered  owner
pursuant to the United  States  Bankruptcy  Code by a trustee in  bankruptcy  in
accordance  with the  final,  nonappealable  order of a court  having  competent
jurisdiction,  the  Trustee  or Paying  Agent,  if any,  shall,  at the time the
Insurer is notified pursuant to (a) above,  notify all registered owners that in
the event that any registered  owner's payment is so recovered,  such registered
owner  will be  entitled  to  payment  from the  Insurer  to the  extent of such
recovery if  sufficient  funds are not otherwise  available,  and the Trustee or
Paying Agent,  if any,  shall furnish to the Insurer its records  evidencing the
payments of  principal  of and interest on the Series 1999 Bonds which have been
made by the Trustee or Paying Agent,  if any, and  subsequently  recovered  from
registered owners and the dates on which such payments were made.

      (f) In addition to those rights  granted the Insurer under the  Indenture,
      the  Insurer  shall,  to the extent it makes  payment of  principal  of or
      interest on the Series 1999 Bonds,  become subrogated to the rights of the
      recipients of such  payments in  accordance  with the terms of the Policy,
      and to evidence  such  subrogation  (i) in the case of  subrogation  as to
      claims for past due interest,  the Trustee or Paying Agent,  if any, shall
      note the  Insurer's  rights as subrogee on the  registration  books of the
      Issuer  maintained  by the Trustee or Paying  Agent,  if any, upon receipt
      from the  Insurer  of proof of the  payment  of  interest  thereon  to the
      registered  owners  of the  Series  1999  Bonds,  and  (ii) in the case of
      subrogation  as to claims for past due  principal,  the  Trustee or Paying
      Agent,  if any,  shall  note  the  Insurer's  rights  as  subrogee  on the
      registration  books of the  Issuer  maintained  by the  Trustee  or Paying
      Agent,  if any, upon  surrender of the Series 1999 Bonds by the registered
      owners thereof together with proof of the payment of principal thereof.

      Section 6.08.  Bonds  Outstanding  on Payment by Insurer.  Notwithstanding
anything in the  Indenture to the  contrary,  in the event that the principal of
and/or  interest  due on the  Series  1999  Bonds  shall be paid by the  Insurer
pursuant to the Policy, the Series 1999 Bonds shall remain "outstanding" for all
purposes under the Indenture,  not be defeased or otherwise satisfied and not be
considered paid by the Issuer, and the assignment and pledge of the trust estate
and all  covenants,  agreements  and  other  obligations  of the  Issuer  to the
registered owners of the Series 1999 Bonds shall continue to exist and shall run
to the benefit of the Insurer, and the Insurer shall be subrogated to the rights
of such registered owners of the Series 1999 Bonds.

      Section 6.09.  Insurer's Rights Concerning the Trustee.

      (a) The Trustee or Paying Agent may be removed at any time, at the written
request of the Insurer,  for any breach by the Trustee or Paying  Agent,  as the
case may be, of any of the provisions set forth herein or in the Indenture.

      (b) The  Insurer  shall  receive  prior  written  notice of any Trustee or
Paying Agent resignation.

      (c) Notwithstanding  any other provision of the Indenture,  in determining
whether the rights of the bondholders will be adversely affected in any material
respect  by any  action  taken  pursuant  to the  terms  and  provisions  of the
Indenture,  the  Trustee  or  Paying  Agent  shall  consider  the  effect on the
bondholders  as if there were no Policy.  The  Trustee  shall not  consider  any
payments  made under the Policy in  determining  whether a default under Section
8.01(a) or (b) of the Indenture shall have occurred.

      (d) The Trustee  shall be deemed to waive notice of any default  under the
Indenture of which it shall be specifically advised in writing by the Insurer.

      (e)  Notwithstanding  any other  provision of the  Indenture,  no removal,
resignation  or  termination  of the  Trustee or Paying  Agent shall take effect
until a successor, reasonably acceptable to the Insurer, shall be appointed.

      Section 6.10.  Insurer's Right to Information.  The Issuer will permit the
Insurer to discuss  the  affairs,  finances  and  accounts  of the Issuer or any
information  the Insurer may reasonably  request  regarding the security for the
Series  1999 Bonds with  appropriate  officers  of the  Issuer.  The  Trustee or
Issuer,  as  appropriate,  will permit the Insurer to have access to and to make
copies  of all  books and  records  relating  to the  Series  1999  Bonds at any
reasonable time.

      Section 6.11.  Intervention.  Intervention  by the Trustee in any judicial
proceeding pursuant to Section 9.04 of the Indenture shall be made in accordance
therewith  on the  request  of the  Insurer  and any  intervention  based on the
request of the  bondholders as provided  therein may only be made with the prior
written consent of the Insurer.

      Section 6.12. Insurer as Third Party  Beneficiary.  To the extent that the
Indenture  confers  upon or gives or grants to the Insurer any right,  remedy or
claim,  the  Insurer  is hereby  explicitly  recognized  as being a  third-party
beneficiary hereunder and may enforce any such right, remedy or claim conferred,
given or granted thereunder.

      Section 6.13. Parties in Interest.  Nothing in the Indenture  expressed or
implied is intended or shall be construed  to confer  upon,  or to give or grant
to, any person or entity,  other than the Issuer, the Trustee,  the Insurer, the
Paying Agent,  if any, and the registered  owners of the Series 1999 Bonds,  any
right,  remedy or claim  under or by reason of the  Indenture  or any  covenant,
condition or stipulation thereof, and all covenants, stipulations,  promises and
agreements in the Indenture by and on behalf of the Issuer shall be for the sole
and exclusive benefit of the Issuer, the Trustee, the Insurer, the Paying Agent,
if any, and the registered owners of the Series 1999 Bonds.


                                   ARTICLE VII

                                  MISCELLANEOUS

            SECTION  7.01.  Successors  and  Assigns.  This Eighth  Supplemental
Indenture  shall be binding upon,  inure to the benefit of and be enforceable by
the parties and their respective successors and assigns.

            SECTION 7.02.  Applicable Law.  This Eighth Supplemental
Indenture shall be governed by the laws of the State of Indiana.

            SECTION 7.03.  Counterparts.  This Eighth Supplemental Indenture
may be executed in several counterparts, each of which shall be an original,
and all of which together shall constitute but one and the same instrument.

            IN WITNESS  WHEREOF,  the City of Rockport,  Indiana has caused this
Eighth Supplemental Indenture to be executed by its Mayor and its corporate seal
to be hereunto  affixed and  attested by its  Clerk-Treasurer,  and Norwest Bank
Indiana, N.A. has caused this Eighth Supplemental  Indenture to be executed by a
First Vice President and attested by a Vice President,  all as of the date first
above written.

                                    CITY OF ROCKPORT, INDIANA



                                    By  _______________________________
                                                      Mayor



(SEAL)


Attest:


- -----------------------------
      Clerk-Treasurer




                                    NORWEST BANK INDIANA, N.A.
                                   As Trustee


                                    By  _______________________________
                                                Vice President

(SEAL)



Attest:


- -----------------------------
      First Vice President

                                                                           DRAFT
                                                                        08/27/99

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


                     EIGHTH SUPPLEMENTAL INDENTURE OF TRUST

                                     BETWEEN

                            CITY OF ROCKPORT, INDIANA

                                       and

                           NORWEST BANK INDIANA, N.A.

                                     Trustee


                        Dated as of ____________ 1, 1999

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



                                       This instrument was prepared by:

                                       Theodore J. Esping, Esq.
                                       Baker & Daniels
                                       300 North Meridian Street
                                   Suite 2700
                           Indianapolis, Indiana 46204


            THIS   EIGHTH   SUPPLEMENTAL   INDENTURE   OF  TRUST  (the   "Eighth
Supplemental Indenture"),  made as of the first day of __________,  1999, by and
between the CITY OF ROCKPORT,  INDIANA,  a municipal  corporation  and political
subdivision  of the State of Indiana (the  "Issuer"),  and NORWEST BANK INDIANA,
N.A.,  a national  banking  association  existing and  authorized  to accept and
execute  trusts of the character  herein set out under and by virtue of the laws
of the United States,  with its principal corporate trust office located in Fort
Wayne, Indiana, as Trustee (the "Trustee");


                             W I T N E S S E T H :

            WHEREAS,  the  Issuer has issued  $110,000,000  aggregate  principal
amount of its  Pollution  Control  Revenue  Bonds  (Indiana & Michigan  Electric
Company Project), Series 1984 A (the "Series A Bonds"), pursuant to Indiana Code
36-7-11.9 and Indiana Code 36-7-12 (collectively, the "Act") and an Indenture of
Trust dated as of December  1, 1984 (the "1984  Indenture"),  between the Issuer
and  the  Trustee  for  the  purpose  of  acquiring,  constructing,  installing,
equipping  and  financing  the portion of certain  facilities  designed  for the
abatement or control of atmospheric and water pollution, including collection of
sewage or disposal of solid waste (the  "Project"),  at the Rockport  Generating
Station owned by Indiana  Michigan  Power  Company (the  "Company") as tenant in
common without right of partition with AEP Generating Company,  which facilities
were sold to the Company  pursuant to an  Agreement of Sale dated as of December
1, 1984, as amended (the "Agreement"), between the Issuer and the Company; and

            WHEREAS,  the  Issuer  has  issued  simultaneously  (a)  $50,000,000
aggregate  principal amount of its Floating Rate Weekly Demand Pollution Control
Revenue Refunding Bonds (Indiana & Michigan  Electric Company  Project),  Series
1985 A (the  "Floating  Rate Weekly Demand Series 1985 A Bonds"),  pursuant to a
First  Supplemental  Indenture  of Trust,  dated as of July 1, 1985 (the  "First
Supplemental  Indenture"),  as Refunding  Bonds  pursuant to Section 2.11 of the
1984 Indenture to refund a portion of $110,000,000 aggregate principal amount of
the Series A Bonds  which  matured by their  terms on  December  16,  1985,  (b)
$50,000,000  aggregate  principal amount of its Adjustable Rate Tender Pollution
Control Revenue  Refunding Bonds (Indiana & Michigan  Electric Company Project),
Series  1985 A (the  "Adjustable  Series  1985 A Bonds"),  pursuant  to a Second
Supplemental  Indenture  of  Trust,  dated  as of  July  1,  1985  (the  "Second
Supplemental Indenture") as Refunding Bonds pursuant to Section 2.11 of the 1984
Indenture to refund a portion of $110,000,000  aggregate principal amount of the
Series A Bonds  which  matured by their  terms on  December  16,  1985,  and (c)
$50,000,000  aggregate  principal  amount of its Fixed  Rate  Pollution  Control
Revenue Bonds (Indiana & Michigan Electric Company Project),  Series 1985 A (the
"Fixed Rate Series 1985 A Bonds"), pursuant to a Third Supplemental Indenture of
Trust,  dated  as of  July 1,  1985  (the  "Third  Supplemental  Indenture")  as
Refunding  Bonds  pursuant  to Section  2.11 of the 1984  Indenture  to refund a
portion of $110,000,000  aggregate  principal amount of the Series A Bonds which
matured by their terms on December 16, 1985 and as Additional  Bonds pursuant to
Section 2.10 of the 1984 Indenture to finance a portion of the estimated Cost of
Construction,  as defined in the Agreement,  of the Project not theretofore paid
by application of the Series A Bond proceeds;

            WHEREAS,  the  Issuer  has  simultaneously  issued  (a)  $50,000,000
aggregate  principal  amount of its 6.55% Pollution  Control  Revenue  Refunding
Bonds  (Indiana  Michigan  Power Company  Project),  Series 1995 A ("Series 1995
Bonds"),  pursuant to the Fifth  Supplemental  Indenture  of Trust,  dated as of
February 1, 1995 ("Fifth Supplemental  Indenture"),  as Refunding Bonds pursuant
to Section  2.11 of the 1984  Indenture  to refund the Fixed Rate  Series 1985 A
Bonds; and (b) $50,000,000  aggregate  principal amount of its Pollution Control
Revenue Refunding Bonds (Indiana Michigan Power Company Project),  Series 1995 B
("Series 1995 B Bonds"),  pursuant to the Sixth Supplemental  Indenture of Trust
dated as of June 1, 1995,  as  Refunding  Bonds  pursuant to Section 2.11 of the
1984 Indenture to refund the Adjustable Series 1985 A Bonds; and

            WHEREAS,  the Issuer has determined to issue  $50,000,000  aggregate
principal  amount of its Pollution  Control  Revenue  Refunding  Bonds  (Indiana
Michigan  Power  Company  Project),  Series 1999 (the "Series 1999  Bonds"),  as
Refunding  Bonds  pursuant to Section  2.11 of the 1984  Indenture to refund the
Floating Rate Weekly Demand Series 1985 A Bonds at their  redemption on December
1, 1999 pursuant to the Act and Indiana Code 5-1-5; and

            WHEREAS,  the Issuer has determined that the Series 1999 Bonds to be
issued  hereunder and the  certificate  of  authentication  by the Trustee to be
endorsed on all Series 1999 Bonds shall be,  respectively,  substantially in the
following forms with such  variations,  omissions and insertions as are required
or permitted by the 1984 Indenture, as amended and supplemented,  or this Eighth
Supplemental Indenture:

                             (FORM OF FRONT OF BOND)


No. R-_____                                                        $__________


                            UNITED STATES OF AMERICA
                                STATE OF INDIANA

                            CITY OF ROCKPORT, INDIANA
                   POLLUTION CONTROL REVENUE REFUNDING BOND
                   (INDIANA MICHIGAN POWER COMPANY PROJECT)
                                   SERIES 1999


MATURITY DATE:  _______________                         CUSIP:  ______________

REGISTERED OWNER:

PRINCIPAL AMOUNT:                                                      DOLLARS


            The  City  of  Rockport,  a  municipal   corporation  and  political
subdivision of the State of Indiana (the "Issuer"),  for value received,  hereby
promises to pay,  solely from the sources and as  hereinafter  provided,  to the
registered  owner stated  above,  or  registered  assigns,  on the maturity date
stated  above  or upon  earlier  redemption  hereof  upon the  presentation  and
surrender  hereof,  the principal  amount stated above together with interest on
said principal amount from _________ 1 or _________ 1 next preceding the date on
which it is authenticated (unless this Bond is authenticated prior to __________
1, 1999,  in which case it shall bear  interest  from the date  hereof or unless
this Bond is  authenticated on a __________ 1 or ___________ 1, in which case it
shall bear interest from such ________ 1 and ________ 1), payable  semi-annually
on ______ 1 and __________ 1 of each year commencing  ____________ 1, 1999 until
payment of said principal sum at the rate of  ________________  per cent (____%)
per annum.  The  principal  of this Bond is payable at the  principal  office of
Norwest Bank Indiana,  N.A. (formerly Lincoln National Bank and Trust Company of
Fort Wayne), in Fort Wayne,  Indiana, as Trustee, or its successor in trust (the
"Trustee")  under the  Indenture;  provided,  however,  interest on this Bond is
payable by check mailed to the  registered  owner  hereof.  Both  principal  and
interest are payable in lawful money of the United States of America.

            REFERENCE IS HEREBY MADE TO THE FURTHER  PROVISIONS OF THIS BOND SET
FORTH ON THE REVERSE SIDE HEREOF WHICH, FOR ALL PURPOSES HEREOF,  SHALL HAVE THE
FORCE AND EFFECT AS IF PRINTED IN FULL ON THE FRONT HEREOF.

            All acts,  conditions  and  things  required  to happen  exist or be
performed  precedent to the issuance of this bond have happened,  exist and have
been performed.

            This Bond shall not become obligatory for any purpose or be entitled
to any  security or benefit  under the  Indenture  or be valid until the Trustee
shall have executed the Certificate of Authentication appearing hereon.

            This  Bond and the  issue  of  which  it is a part and the  interest
thereon are limited  obligations  of the Issuer payable solely from the revenues
and receipts  derived from the  Agreement of Sale (except to the extent paid out
of money  attributable to Bond proceeds),  which revenues and receipts have been
pledged and assigned to the Trustee to secure payment thereof. The Bonds and the
interest  thereon  shall not be deemed to  constitute  a debt or a pledge of the
faith and credit of the State of Indiana or any  political  subdivision  thereof
other  than the  Issuer,  whose  obligations  in  respect  of the  Bonds and the
interest  thereon are limited as set forth herein and in the Indenture.  Neither
the Issuer,  the State of Indiana nor any other  political  subdivision  thereof
shall be obligated to pay the  principal of the Bonds,  the premium,  if any, or
the interest  thereon or other costs  incident  thereto except from the revenues
and receipts pledged therefor. Neither the faith and credit nor the taxing power
of the Issuer or the State of Indiana or any other political subdivision thereof
is pledged to the payment of the principal of the Bonds, the premium, if any, or
the interest thereon or other costs incident thereto.

            IN WITNESS  WHEREOF,  the City of Rockport,  Indiana has caused this
Bond to be signed by the manual or facsimile signature of its Mayor, its seal to
be affixed  hereto or a facsimile  thereof to be printed  hereon and attested by
the manual or facsimile  signature of its  Clerk-Treasurer,  and this Bond to be
dated ________ 1, 1999.

                                    CITY OF ROCKPORT, INDIANA

                                          By________________________
                                                Mayor

(SEAL)

Attest:


- --------------------------
Clerk-Treasurer

                            (FORM OF REVERSE OF BOND)

            This  Bond is one of an  issue  of  $50,000,000  City  of  Rockport,
Indiana  Pollution  Control  Revenue  Refunding  Bonds  (Indiana  Michigan Power
Company Project),  Series 1999 (the "Bonds"),  of like date and tenor, except as
to number and principal  amount,  authorized and issued pursuant to Indiana Code
36-7-11.9,  Indiana  Code  36-7-12  and Indiana  Code 5-1-5,  for the purpose of
refunding  Floating Rate Weekly Demand Pollution Control Revenue Refunding Bonds
(Indiana  &  Michigan  Electric  Company  Project)  Series  1985 A,  which  were
previously  issued  by  the  Issuer  in  part  for  the  purpose  of  acquiring,
constructing,  installing,  equipping  and  financing,  in part,  the portion of
certain  air and water  pollution  abatement  or control  facilities,  including
sewage or solid  waste  disposal  facilities  (the  "Project")  at the  Rockport
Generating  Station (the "Plant") owned by Indiana  Michigan  Power  Company,  a
corporation  organized and existing  under the laws of the State of Indiana (the
"Company"),  as tenant in common  without right of partition with AEP Generating
Company,  a corporation  organized  and existing  under the laws of the State of
Ohio and duly qualified to do business as a foreign  corporation in the State of
Indiana,  and selling the same to the Company  pursuant to an  Agreement of Sale
dated as of  December  1, 1984 (the "1984  Agreement"),  as amended by the First
Amendment to Agreement of Sale dated as of July 1, 1985, the Second Amendment to
Agreement of Sale dated as of February 1, 1995, the Third Amendment to Agreement
of Sale dated as of June 1, 1995 and as to be amended by the Fourth Amendment to
Agreement of Sale dated as of _______ __, 1999 (the 1984  Agreement,  as amended
by the First  Amendment to Agreement,  the Second  Amendment to  Agreement,  the
Third  Amendment  to Agreement  and the Fourth  Amendment  to  Agreement,  being
hereinafter referred to as the "Agreement of Sale"),  between the Issuer and the
Company.  The Bonds are issued  under an Indenture of Trust dated as of December
1, 1984, as supplemented and amended by a First Supplemental  Indenture of Trust
dated  as of July  1,  1985  (the  "First  Supplemental  Indenture"),  a  Second
Supplemental  Indenture  of  Trust  dated  as  of  July  1,  1985  (the  "Second
Supplemental  Indenture"),  a Third Supplemental  Indenture of Trust dated as of
July 1,  1985  (the  "Third  Supplemental  Indenture"),  a  Fourth  Supplemental
Indenture  of  Trust  dated  as  of  June  1,  1990  (the  "Fourth  Supplemental
Indenture"),  a Fifth  Supplemental  Indenture  of Trust dated as of February 1,
1995 (the "Fifth  Supplemental  Indenture"),  a Sixth Supplemental  Indenture of
Trust dated as of June 1, 1995 (the "Sixth Supplemental  Indenture"),  a Seventh
Supplemental  Indenture  of Trust  dated as of  August  1,  1995  (the  "Seventh
Supplemental Indenture"), and an Eighth Supplemental Indenture of Trust dated as
of _________ 1, 1999 (the "Eighth  Supplemental  Indenture")  (the  Indenture of
Trust,  as supplemented  and amended by the First  Supplemental  Indenture,  the
Second  Supplemental  Indenture,  the Third Supplemental  Indenture,  the Fourth
Supplemental Indenture, the Fifth Supplemental Indenture, the Sixth Supplemental
Indenture,  the  Seventh  Supplemental  Indenture  and the  Eighth  Supplemental
Indenture being referred to herein as the  "Indenture"),  between the Issuer and
the  Trustee  which  assigns to the  Trustee,  as  security  for the Bonds,  the
Issuer's  rights  under the  Agreement  of Sale  (except  for  payment of Issuer
expenses and for indemnification of the Issuer). Reference is hereby made to the
Indenture,  the Agreement of Sale and to all amendments and supplements  thereto
for a description of the  provisions,  among others,  with respect to the nature
and extent of the security, the rights, duties and obligations of the Issuer and
the  Trustee and the rights of the holders of the Bonds and the terms upon which
the Bonds are issued and secured.

            The Bonds may not be called  for  redemption  prior to  ________  1,
____,  except that in the event of the  exercise by the Company of its option to
prepay the entire  purchase price of the Project under  circumstances  involving
(i) the imposition of unreasonable burdens or excessive liabilities with respect
to the  Project  or the Plant,  or the  operation  of the  Project or the Plant,
including taxes not imposed on December 1, 1984 and economic,  technological  or
other changes  making the continued  operation of the Plant  uneconomical,  (ii)
damage to or destruction of the Project or a portion thereof or all or a portion
of the Plant,  (iii)  condemnation of all or substantially all of the Project or
all or a portion of the Plant or (iv) the operation of the Plant being enjoined,
all as provided in Section  8.1(b)  through (e) of the  Agreement  of Sale,  the
Bonds are  subject to  redemption  in whole,  but not in part,  at any time upon
payment of 100% of the principal  amount  thereof plus  interest  accrued to the
redemption date.

            The Bonds are subject to optional  redemption by (at the election of
the Company  without any further  action by the Issuer)  prior to maturity on or
after  ______  __,  ____,  at any time in whole or in part (less than all of the
Bonds to be  redeemed  to be selected  by lot),  upon  payment of the  following
redemption prices (expressed as a percentage of the principal amount of Bonds to
be redeemed) plus accrued interest to the redemption date:

Redemption Dates                                            Redemption
(Dates Inclusive)                                             Price



            If less than all of the Bonds are called for redemption, each $5,000
principal  amount of a Bond having a principal  amount of more than $5,000 shall
be counted as one Bond for the purpose of selecting by lot.

            If any of the Bonds or portions  thereof are called for  redemption,
the Trustee shall cause a notice thereof identifying the Bonds to be redeemed to
be sent by registered  or certified  mail to the  registered  owner of each such
Bond to be redeemed at his address as it appears on the  registration  books not
less than 30 nor more than 60 days prior to the redemption date.  Provided funds
for their  redemption  are on deposit at the place of payment on the  redemption
date, all Bonds or portions thereof so called for redemption shall cease to bear
interest on the redemption date, shall no longer be secured by the Indenture and
shall not be deemed to be outstanding under the provisions of the Indenture.  If
a portion of this Bond shall be called for  redemption,  a new Bond in principal
amount equal to the  unredeemed  portion hereof will be issued to the registered
owner upon the surrender hereof.

            The owner of this Bond shall have no right to enforce the provisions
of the  Indenture,  to institute  action to enforce the covenants  therein or to
take any action with respect to any Event of Default  under the  Indenture or to
institute,  appear  in or  defend  any suit or  other  proceeding  with  respect
thereto,  except as provided in the Indenture. In certain events, on conditions,
in the manner and with the effect set forth in the  Indenture,  the principal of
all the Bonds issued under the Indenture and then  outstanding may become or may
be declared  due and payable  before  their  stated  maturities,  together  with
interest accrued thereon.  Modifications or alterations of the Indenture,  or of
any supplements thereto, may be made only to the extent and in the circumstances
permitted by the Indenture.

            The Bonds are issuable as registered  bonds  without  coupons in the
denominations of $5,000 or any integral multiple thereof.

            This Bond is  transferable  by the  registered  owner  hereof at the
designated  office of the Trustee,  upon surrender of this Bond accompanied by a
duly  executed  instrument  of transfer in form and with  guaranty of  signature
satisfactory  to the  Trustee,  subject to such  reasonable  regulations  as the
Trustee may prescribe,  and upon payment of any tax or other governmental charge
incident to such transfer.  Upon any such  transfer,  a new Bond or Bonds in the
same aggregate principal amount will be issued to the transferee.  Except as set
forth in this Bond and as  otherwise  provided in the  Indenture,  the person in
whose  name this Bond is  registered  shall be deemed  the owner  hereof for all
purposes, and the Issuer, any Paying Agent and the Trustee shall not be affected
by any notice to the contrary.

               (FORM OF TRUSTEE'S CERTIFICATE OF AUTHENTICATION)


            This  Bond is one of the  Bonds  described  in the  within-mentioned
Indenture.

                                    NORWEST BANK INDIANA, N. A.
                                           as Trustee


                                    By__________________________

                                          Authorized Officer
Date:  _________________


                             [FORM OF ABBREVIATIONS]

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

            TEN COM     -     as tenants in common
            TEN ENT     -     as tenants by the entireties
             JT TEN     -     as joint tenants with right of survivorship and
                            not as tenants in common

UNIF TRANF MIN ACT      -     ___________ Custodian _________________
                              (Cust)                        (Minor)

                              Under Uniform Transfer to Minors Act

                              ---------------------------------
                                     (State)

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

                              [FORM OF ASSIGNMENT]

            FOR VALUE  RECEIVED,  the  undersigned  hereby  sells,  assigns  and
transfers unto  ___________________________  (Please  insert Social  Security or
taxpayer identification number of assignee)
================================================================
- ----------------------------------------------------------------
(Please Print or Typewrite Name and Address of Assignee)
- ----------------------------------------------------------------
the  within  Bond,  and all  rights  thereunder,  and  hereby  does  irrevocably
constitute  and appoint  _____________________________  Attorney to transfer the
within Bond on the books kept for the registration  thereof,  with full power of
substitution in the premises.

Dated:

                                    ------------------------------
                                    NOTICE:  The  signature  to this  assignment
                                    must  correspond with the name as it appears
                                    upon  the face of the  within  Bond in every
                                    particular,     without     alteration    or
                                    enlargement or any change whatever.

Signature Guaranteed:         ________________________________
                                    NOTICE:  Signature(s) must be guaranteed
                                    by an Eligible Guarantor Institution such
                                    as a Commercial Bank, Trust Company,
                                    Securities Broker/Dealer, Credit Union,
                                    or Savings Association who is a member of
                                    a medallion program approved by The
                                    Securities Transfer Association, Inc.


                            [STATEMENT OF INSURANCE]

            Municipal Bond  Insurance  Policy No. (the "Policy") with respect to
payments due for principal of and interest on this bond has been issued by AMBAC
Indemnity Corporation ("AMBAC Indemnity").  The Policy has been delivered to the
United  States Trust Company of New York,  New York,  New York, as the Insurance
Trustee  under  said  Policy and will be held by such  Insurance  Trustee or any
successor insurance trustee.  The policy is on file and available for inspection
at the  principal  office of the  Insurance  Trustee  and a copy  thereof may be
secured from AMBAC Indemnity or the Insurance Trustee.  All payments required to
be made  under  the  Policy  shall be made in  accordance  with  the  provisions
thereof.  The owner of this bond  acknowledges  and consents to the  subrogation
rights of AMBAC Indemnity as more fully set forth in the Policy.

and

            WHEREAS,  all  things  necessary  have  been done and  performed  to
constitute  this Eighth  Supplemental  Indenture  a valid and binding  agreement
securing the payment of the principal of,  premium,  if any, and interest on all
bonds issued and to be issued  hereunder and under the 1984  Indenture (the 1984
Indenture,  as  supplemented  by the First  Supplemental  Indenture,  the Second
Supplemental   Indenture,   the  Third   Supplemental   Indenture,   the  Fourth
Supplemental   Indenture  of  Trust,  dated  as  of  June  1,  1990,  the  Fifth
Supplemental  Indenture  of  Trust,  dated as of  February  1,  1995,  the Sixth
Supplemental  Indenture  of  Trust,  dated  as of  June  1,  1995,  the  Seventh
Supplemental  Indenture  of Trust,  dated as of August 1, 1995,  and this Eighth
Supplemental  Indenture,  being referred to herein as the  "Indenture")  and the
execution and delivery of this Eighth  Supplemental  Indenture and the execution
and issuance of the Series 1999 Bonds have in all respects been authorized;


            NOW,  THEREFORE,  the Issuer hereby  agrees and  covenants  with the
Trustee and with the respective  owners,  from time to time of the Series 1985 A
Bonds, the Fixed Rate Series 1995 A Bonds,  the Adjustable  Series 1995 B Bonds,
and the Series 1999 Bonds, or any part thereof, as follows:



                                    ARTICLE I

                          PURPOSE OF SERIES 1999 BONDS


            SECTION 1.01 Purpose of Series 1999 Bonds.  The Series 1999 Bonds of
the Issuer are  authorized for the purpose of refunding the Floating Rate Weekly
Demand Series 1985 A Bonds at their redemption on December 1, 1999.


                                   ARTICLE II

                             THE SERIES 1999 BONDS;
                                 1999 BOND FUND

            SECTION  2.01.  Issuance  of Series  1999  Bonds.  There are  hereby
authorized  to be issued  Pollution  Control  Revenue Bonds of the Issuer in the
aggregate  principal amount of Fifty Million Dollars  ($50,000,000) as Refunding
Bonds pursuant to Section 2.11 of the Indenture.  Said Bonds shall be designated
"City of Rockport,  Indiana  Pollution  Control Revenue Refunding Bonds (Indiana
Michigan Power Company  Project),  Series 1999",  shall be dated as of the first
day of ________,  1999,  shall bear interest  payable  semiannually on the first
days of _______ and _____________,  at the rate of _________ per centum (_____%)
per  annum  and  shall  mature,  subject  to the  right of prior  redemption  as
hereinafter set forth, on __________ 1, ____.

            Both  principal  of and  interest  on the Series 1999 Bonds shall be
payable  in lawful  money of the  United  States of  America,  but only from the
revenues and receipts  pledged to the payment  thereof as provided herein and in
the Indenture.

            SECTION 2.02. Form of Series 1999 Bonds. The Series 1999 Bonds shall
be issued  substantially  in the form of the Series  1999 Bond  hereinabove  set
forth,  with  such  appropriate  variations,  omissions  and  insertions  as are
permitted or required by the Indenture or this Eighth Supplemental Indenture.

            Initially,  one certificate for the Series 1999 Bonds will be issued
and registered to the Securities  Depository (as defined below), or its nominee.
The  Issuer  and the  Trustee  may enter  into a Letter of  Representations  (as
defined  below)  relating  to a  book-entry  system  to  be  maintained  by  the
Securities Depository with respect to the Series 1999 Bonds.

            In the event that (a) the  Securities  Depository  determines not to
continue to act as a securities  depository  for the Series 1999 Bonds by giving
notice to the Trustee and the Issuer discharging its responsibilities hereunder,
or (b) the  Issuer  determines  (at  the  direction  of the  Company)  (i)  that
beneficial  owners of Series  1999  Bonds  shall be able to obtain  certificated
Series  1999  Bonds or (ii) to  select  a new  Securities  Depository,  then the
Trustee  shall,  at the direction of the Issuer (at the request of the Company),
attempt to locate another qualified securities depository to serve as Securities
Depository or  authenticate  and deliver  certificated  Series 1999 Bonds to the
beneficial  owners or to the  Securities  Depository  participants  on behalf of
beneficial  owners  substantially  in the form provided for in this Section.  In
delivering certificated Series 1999 Bonds, the Trustee shall be entitled to rely
on the records of the Securities  Depository as to the beneficial  owners or the
records of the Securities Depository participants acting on behalf of beneficial
owners.   Such  certificated   Series  1999  Bonds  will  then  be  registrable,
transferable and exchangeable as set forth in this Indenture.

            So long as there is a  Securities  Depository  for the  Series  1999
Bonds (1) it or its  nominee  shall be the  registered  owner of the Series 1999
Bonds,  (2)   notwithstanding   anything  to  the  contrary  in  the  Indenture,
determinations of persons entitled to payment of principal, premium, if any, and
interest,  transfers of ownership  and exchanges and receipt of notices shall be
the  responsibility of the Securities  Depository and shall be effected pursuant
to rules and  procedures  established  by such  Securities  Depository,  (3) the
Issuer,  the  Company  and the Trustee  shall not be  responsible  or liable for
maintaining,  supervising or reviewing the records  maintained by the Securities
Depository,  its participants or persons acting through such  participants,  (4)
references in the Indenture to registered  owners of the Series 1999 Bonds shall
mean such Securities Depository or its nominee and shall not mean the beneficial
owners  of the  Series  1999  bonds  and (5) in the  event of any  inconsistency
between the  provisions  of the  Indenture  and the  provisions of the Letter of
Representations such provisions of the Letter of Representations,  except to the
extent  set forth in this  paragraph  and the next  preceding  paragraph,  shall
control.

            For purposes of this  Section,  the  following  terms shall have the
following meanings:

            "Letter of Representations" means the Letter of Representations from
the Issuer and the Trustee to the Securities Depository and (with the consent of
the Company) any amendments thereto, or successor  agreements between the Issuer
and  the  Trustee  and  any  successor  Securities  Depository,  relating  to  a
book-entry system to be maintained by the Securities  Depository with respect to
the Series 1999 Bonds.

            "Securities  Depository"  means  The  Depository  Trust  Company,  a
corporation  organized and existing under the laws of the State of New York, and
any other securities  depository for the Series 1999 Bonds appointed pursuant to
this Section, and their successors.

            SECTION 2.03. Execution,  Authentication and Delivery of Series 1999
Bonds. The Series 1999 Bonds shall be executed, authenticated and delivered, and
the  proceeds  therefrom  deposited,  as  provided  in Section  2.11 of the 1984
Indenture and Section 3.2(c) of the Agreement.

            SECTION 2.04.  Creation of 1999 Bond Fund.

            (a) There is hereby created and established with the Trustee a trust
fund in the name of the  Issuer  to be  designated  "City of  Rockport,  Indiana
Pollution  Control  Revenue  Refunding  Bonds  (Indiana  Michigan  Power Company
Project),  Series  1999 Bond Fund" (the  "1999 Bond  Fund").  The 1999 Bond Fund
shall be a  segregated  trust  fund held for the  benefit  of the  owners of the
Series 1999 Bonds.

            (b) There shall be deposited into the 1999 Bond Fund (i) all accrued
interest,  if any,  received  upon the sale of the 1999 Bonds and (ii) all other
moneys  received by the Trustee  under and pursuant to any of the  provisions of
the Indenture or the Agreement  which are required or which are  accompanied  by
directions  from the Company  that such moneys are to be paid into the 1999 Bond
Fund.


                                   ARTICLE III

                            REDEMPTION OF SERIES 1999
                              BONDS BEFORE MATURITY

            SECTION 3.01. Redemption. Any and all of the Series 1999 Bonds shall
be  redeemable  as set forth in the form of Series  1999  Bond  hereinabove  set
forth.  Reference  is  hereby  made  to  Article  III of the  Indenture  for the
provisions describing the methods and effects of redemption.


                                   ARTICLE IV

                             COVENANTS AND SECURITY

            SECTION 4.01.  Authority;  Compliance  with  Conditions.  The Issuer
covenants  that it is duly  authorized  under the laws of the State of  Indiana,
including  particularly and without limitation the Act, to issue the Series 1999
Bonds  authorized  hereby and to execute  and deliver  this Eighth  Supplemental
Indenture,  to assign and pledge the  Agreement  and the  revenues  and receipts
payable under the Agreement,  to grant a security interest therein and to pledge
the revenues and  receipts in the manner and to the extent  contemplated  herein
and in the  Indenture;  that  all of the  requirements  and  conditions  for the
execution and delivery of this Eighth Supplemental Indenture have been satisfied
and complied with; that all other action on its part necessary for the execution
and delivery of this Eighth Supplemental Indenture has been duly and effectively
taken; and that the Series 1999 Bonds in the hands of the owners thereof are and
will be valid and enforceable  obligations of the Issuer  according to the terms
thereof and hereof.

            SECTION  4.02.  Security  for Series  1999  Bonds;  Confirmation  of
Indenture.  The Series 1999 Bonds shall be equally and ratably  secured  (except
insofar as any guaranty, letter of credit, insurance policy, first mortgage bond
or other  collateral or instrument  of credit  enhancement  provided by a person
other  than the  Issuer  may  afford  additional  security  for the Bonds of any
particular  series) under the Indenture with all outstanding Bonds and any other
series of bonds  which may be issued  pursuant  to  Section  2.10 or 2.11 of the
Indenture,  without  preference,  priority or  distinction of any bonds over any
other  bonds.  As  supplemented  and  amended,  the  Indenture  is ratified  and
confirmed  (except  as set forth  herein),  and the  Indenture,  including  each
supplemental  indenture,  shall be read, taken and construed as one and the same
instrument.  All  covenants,  agreements  and  provisions  of, and all  security
(except as set forth herein),  provided  under,  the Indenture  shall apply with
full force and effect to the Series 1999 Bonds and to the owners thereof (except
insofar as any guaranty, letter of credit, insurance policy, first mortgage bond
or other  collateral or instrument  of credit  enhancement  provided by a person
other  than the  Issuer  may  afford  additional  security  for the Bonds of any
particular series).


                                    ARTICLE V

                             AMENDMENT OF INDENTURE

            SECTION  5.01  Amendment  to  Section  12.01 The last  paragraph  of
Section 12.01 of the 1984 Indenture is amended by adding the following  sentence
at the end of the paragraph:

            "The Trustee may  establish a record date with respect to the Series
            1999 Bonds for purposes of this Section 12.01, with no provision for
            revocation of consents, requests, directions,  approvals, objections
            or other instruments by subsequent owners after the record date."


                                   ARTICLE VI

                          SPECIAL INSURANCE PROVISIONS

      Section 6.01. Concerning the Special Insurance Provisions.  The provisions
of this Article VI shall apply notwithstanding  anything in the Indenture to the
contrary,  but only so long as (i) the Policy  remains in full force and effect,
(ii) the  Insurer is not in default in its  obligations  under the  Policy,  and
(iii) the Series 1999 Bonds remain  outstanding (as defined in the Indenture and
Section 6.08 hereof).

      Section 6.02.  Consent of the Insurer in Addition to  Bondholder  Consent.
Unless otherwise  provided in this Section,  the Insurer's written consent shall
be required (in addition to bondholder consent, when required) for the following
purposes:  (i)  execution  and  delivery of any  supplemental  indenture  or any
amendment,  supplement  or change to or  modification  of the Agreement of Sale;
(ii) removal of the Trustee or Paying Agent and selection and appointment of any
successor  trustee or paying  agent;  and (iii)  initiation  or  approval of any
action not described in (i) or (ii) above which requires bondholder consent.

      Section 6.03. Insurer's Consent Upon Default. Anything in the Indenture to
the contrary notwithstanding, upon the occurrence and continuance of an Event of
Default under the Indenture, the Insurer shall be entitled to control and direct
the  enforcement  of all rights and remedies  granted to the  bondholders or the
Trustee  for the  benefit of the  bondholders  under the  Indenture,  including,
without limitation, (i) the right to accelerate the principal of the Series 1999
Bonds as described in the Indenture and (ii) the right to annul any  declaration
of  acceleration,  and the Insurer shall also be entitled to approve all waivers
of events of default.

      Section  6.04.  Acceleration  Rights.  Upon the  occurrence of an Event of
Default,  the Trustee may,  with the consent of the Insurer,  and shall,  at the
direction  of the  Insurer  or 25% of the  bondholders  with the  consent of the
Insurer, by written notice to the Issuer and the Insurer,  declare the principal
of the Series  1999 Bonds to be  immediately  due and  payable,  whereupon  that
portion of the  principal  of the Series 1999 Bonds  thereby  coming due and the
interest  thereon accrued to the date of payment shall,  without further action,
become and be immediately  due and payable,  anything in the Indenture or in the
Series 1999 Bonds to the contrary notwithstanding.

      Section  6.05.  Amendments.  Any  provision  of  the  Indenture  expressly
recognizing  or  granting  rights in or to the Insurer may not be amended in any
manner  which  affects  the rights of the  Insurer  hereunder  without the prior
written consent of the Insurer.

      Section 6.06.  Notices and Information.

             (a) The Trustee  shall  furnish to the Insurer a copy of any notice
to be given to the  registered  owners  of the  Series  1999  Bonds,  including,
without limitation, notice of any redemption of or defeasance of the Series 1999
Bonds, and any certificate  rendered  pursuant to the Indenture  relating to the
security for the Series 1999 Bonds.

      (b) The Trustee or the Issuer  shall  notify the Insurer of any failure of
the Company to provide relevant notices, certificates, etc.

      (c)  Notwithstanding  any other  provision of the  Indenture,  the Trustee
shall  immediately  notify the  Insurer  if at any time  there are  insufficient
moneys to make any  payments  of  principal  and/or  interest  as  required  and
immediately upon the occurrence of any Event of Default under the Indenture.

      (d) All notice or other  communication  to be given to the  Insurer  under
this Eighth  Supplemental  Indenture or the Indenture may be given by mailing or
delivering the same in writing to Ambac Assurance Corporation,  One State Street
Plaza, New York, New York 10004, Attention:, in the case of subclause (a) above,
The  Surveillance  Department,  and in all other  cases,  The General  Counsel's
Office.

      Section  6.07.  Payment   Procedures;   Subrogation.   The  Issuer,  the
Trustee and any Paying Agent agree to comply with the following provisions:

      (a) If the Trustee or Paying Agent, if any,  determines that there will be
insufficient  funds to pay the principal of or interest on the Series 1999 Bonds
at maturity or on any Interest  Payment Date, as the case may be, the Trustee or
Paying Agent,  if any, shall so notify the Insurer within one business day after
such  determination.  Such notice  shall  specify the amount of the  anticipated
deficiency,  the Series 1999 Bonds to which such  deficiency is  applicable  and
whether such Series 1999 Bonds will be deficient as to principal or interest, or
both.  The Insurer  will make  payments of  principal  of or interest due on the
Series 1999 Bonds on or before the first business day next following the date on
which the Insurer shall have received  notice of nonpayment  from the Trustee or
Paying Agent, if any.

      (b) The Trustee or Paying Agent, if any, shall, after giving notice to the
Insurer as  provided in (a) above,  make  available  to the Insurer  and, at the
Insurer's  direction,  to the Insurance  Trustee,  the registration books of the
Issuer  maintained  by the  Trustee or Paying  Agent,  if any,  and all  records
relating to the Series 1999 Bonds maintained under the Indenture.

      (c) The Trustee or Paying Agent, if any, shall provide the Insurer and the
Insurance Trustee with a list of registered owners of Series 1999 Bonds entitled
to receive  principal or interest  payments  from the Insurer under the terms of
the Policy,  and shall make  arrangements with the Insurance Trustee (i) to mail
checks to or pay by wire transfer the registered owners of the Series 1999 Bonds
entitled to receive full or partial interest  payments from the Insurer and (ii)
to pay principal upon Series 1999 Bonds  surrendered to the Insurance Trustee by
the  registered  owners of Series 1999 Bonds entitled to receive full or partial
principal payments from the Insurer.

      (d) The Trustee or Paying Agent,  if any,  shall,  at the time it provides
notice to the Insurer  pursuant to (a) above,  notify  registered  owners of the
Series  1999 Bonds  entitled to receive  the  payment of  principal  or interest
thereon from the Insurer (i) as to the fact of such  entitlement,  (ii) that the
Insurer  will remit to them all or a part of the interest  payments  next coming
due upon proof of a Series 1999 Bond owner's  entitlement  to interest  payments
and delivery to the Insurance  Trustee,  in form  satisfactory  to the Insurance
Trustee,  of an  appropriate  assignment  of the  registered  owner's  right  to
payment, (iii) that should they be entitled to receive full payment of principal
from the  Insurer,  they must  surrender  their Series 1999 Bonds (along with an
appropriate  instrument  of  assignment  in form  satisfactory  to the Insurance
Trustee to permit  ownership of such Series 1999 Bonds to be  registered  in the
name of the Insurer) for payment to the Insurance  Trustee,  and not the Trustee
or Paying  Agent,  if any,  and (iv) that  should  they be  entitled  to receive
partial payment of principal from the Insurer,  they must surrender their Series
1999 Bonds for payment thereon first to the Trustee or Paying Agent, if any, who
shall note on such Series 1999 Bonds the  portion of the  principal  paid by the
Trustee or Paying Agent, if any, and then, along with an appropriate  instrument
of assignment in form  satisfactory to the Insurance  Trustee,  to the Insurance
Trustee, which will then pay the unpaid portion of principal.

      (e) In the event that the Trustee or Paying Agent, if any, has notice that
any  payment of  principal  of or  interest  on the Series  1999 Bonds which has
become Due for  Payment (as defined in the Policy) and which is made to an owner
of a  Series  1999  Bond  by or on  behalf  of the  Issuer  has  been  deemed  a
preferential  transfer  and  theretofore  recovered  from its  registered  owner
pursuant to the United  States  Bankruptcy  Code by a trustee in  bankruptcy  in
accordance  with the  final,  nonappealable  order of a court  having  competent
jurisdiction,  the  Trustee  or Paying  Agent,  if any,  shall,  at the time the
Insurer is notified pursuant to (a) above,  notify all registered owners that in
the event that any registered  owner's payment is so recovered,  such registered
owner  will be  entitled  to  payment  from the  Insurer  to the  extent of such
recovery if  sufficient  funds are not otherwise  available,  and the Trustee or
Paying Agent,  if any,  shall furnish to the Insurer its records  evidencing the
payments of  principal  of and interest on the Series 1999 Bonds which have been
made by the Trustee or Paying Agent,  if any, and  subsequently  recovered  from
registered owners and the dates on which such payments were made.

      (f) In addition to those rights  granted the Insurer under the  Indenture,
      the  Insurer  shall,  to the extent it makes  payment of  principal  of or
      interest on the Series 1999 Bonds,  become subrogated to the rights of the
      recipients of such  payments in  accordance  with the terms of the Policy,
      and to evidence  such  subrogation  (i) in the case of  subrogation  as to
      claims for past due interest,  the Trustee or Paying Agent,  if any, shall
      note the  Insurer's  rights as subrogee on the  registration  books of the
      Issuer  maintained  by the Trustee or Paying  Agent,  if any, upon receipt
      from the  Insurer  of proof of the  payment  of  interest  thereon  to the
      registered  owners  of the  Series  1999  Bonds,  and  (ii) in the case of
      subrogation  as to claims for past due  principal,  the  Trustee or Paying
      Agent,  if any,  shall  note  the  Insurer's  rights  as  subrogee  on the
      registration  books of the  Issuer  maintained  by the  Trustee  or Paying
      Agent,  if any, upon  surrender of the Series 1999 Bonds by the registered
      owners thereof together with proof of the payment of principal thereof.

      Section 6.08.  Bonds  Outstanding  on Payment by Insurer.  Notwithstanding
anything in the  Indenture to the  contrary,  in the event that the principal of
and/or  interest  due on the  Series  1999  Bonds  shall be paid by the  Insurer
pursuant to the Policy, the Series 1999 Bonds shall remain "outstanding" for all
purposes under the Indenture,  not be defeased or otherwise satisfied and not be
considered paid by the Issuer, and the assignment and pledge of the trust estate
and all  covenants,  agreements  and  other  obligations  of the  Issuer  to the
registered owners of the Series 1999 Bonds shall continue to exist and shall run
to the benefit of the Insurer, and the Insurer shall be subrogated to the rights
of such registered owners of the Series 1999 Bonds.

      Section 6.09.  Insurer's Rights Concerning the Trustee.

      (a) The Trustee or Paying Agent may be removed at any time, at the written
request of the Insurer,  for any breach by the Trustee or Paying  Agent,  as the
case may be, of any of the provisions set forth herein or in the Indenture.

      (b) The  Insurer  shall  receive  prior  written  notice of any Trustee or
Paying Agent resignation.

      (c) Notwithstanding  any other provision of the Indenture,  in determining
whether the rights of the bondholders will be adversely affected in any material
respect  by any  action  taken  pursuant  to the  terms  and  provisions  of the
Indenture,  the  Trustee  or  Paying  Agent  shall  consider  the  effect on the
bondholders  as if there were no Policy.  The  Trustee  shall not  consider  any
payments  made under the Policy in  determining  whether a default under Section
8.01(a) or (b) of the Indenture shall have occurred.

      (d) The Trustee  shall be deemed to waive notice of any default  under the
Indenture of which it shall be specifically advised in writing by the Insurer.

      (e)  Notwithstanding  any other  provision of the  Indenture,  no removal,
resignation  or  termination  of the  Trustee or Paying  Agent shall take effect
until a successor, reasonably acceptable to the Insurer, shall be appointed.

      Section 6.10.  Insurer's Right to Information.  The Issuer will permit the
Insurer to discuss  the  affairs,  finances  and  accounts  of the Issuer or any
information  the Insurer may reasonably  request  regarding the security for the
Series  1999 Bonds with  appropriate  officers  of the  Issuer.  The  Trustee or
Issuer,  as  appropriate,  will permit the Insurer to have access to and to make
copies  of all  books and  records  relating  to the  Series  1999  Bonds at any
reasonable time.

      Section 6.11.  Intervention.  Intervention  by the Trustee in any judicial
proceeding pursuant to Section 9.04 of the Indenture shall be made in accordance
therewith  on the  request  of the  Insurer  and any  intervention  based on the
request of the  bondholders as provided  therein may only be made with the prior
written consent of the Insurer.

      Section 6.12. Insurer as Third Party  Beneficiary.  To the extent that the
Indenture  confers  upon or gives or grants to the Insurer any right,  remedy or
claim,  the  Insurer  is hereby  explicitly  recognized  as being a  third-party
beneficiary hereunder and may enforce any such right, remedy or claim conferred,
given or granted thereunder.

      Section 6.13. Parties in Interest.  Nothing in the Indenture  expressed or
implied is intended or shall be construed  to confer  upon,  or to give or grant
to, any person or entity,  other than the Issuer, the Trustee,  the Insurer, the
Paying Agent,  if any, and the registered  owners of the Series 1999 Bonds,  any
right,  remedy or claim  under or by reason of the  Indenture  or any  covenant,
condition or stipulation thereof, and all covenants, stipulations,  promises and
agreements in the Indenture by and on behalf of the Issuer shall be for the sole
and exclusive benefit of the Issuer, the Trustee, the Insurer, the Paying Agent,
if any, and the registered owners of the Series 1999 Bonds.


                                   ARTICLE VII

                                  MISCELLANEOUS

            SECTION  7.01.  Successors  and  Assigns.  This Eighth  Supplemental
Indenture  shall be binding upon,  inure to the benefit of and be enforceable by
the parties and their respective successors and assigns.

            SECTION 7.02.  Applicable Law.  This Eighth Supplemental
Indenture shall be governed by the laws of the State of Indiana.

            SECTION 7.03.  Counterparts.  This Eighth Supplemental Indenture
may be executed in several counterparts, each of which shall be an original,
and all of which together shall constitute but one and the same instrument.

            IN WITNESS  WHEREOF,  the City of Rockport,  Indiana has caused this
Eighth Supplemental Indenture to be executed by its Mayor and its corporate seal
to be hereunto  affixed and  attested by its  Clerk-Treasurer,  and Norwest Bank
Indiana, N.A. has caused this Eighth Supplemental  Indenture to be executed by a
First Vice President and attested by a Vice President,  all as of the date first
above written.

                                    CITY OF ROCKPORT, INDIANA



                                    By  _______________________________
                                                      Mayor



(SEAL)


Attest:


- -----------------------------
      Clerk-Treasurer




                                    NORWEST BANK INDIANA, N.A.
                                   As Trustee


                                    By  _______________________________
                                                Vice President

(SEAL)



Attest:


- -----------------------------
      First Vice President





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