<PAGE>


                                                                     EXHIBIT 4.1

                           MIDAMERICAN ENERGY COMPANY


                                       AND


                 ___________________________________, as Trustee



                                    Indenture



                        Dated as of _______________, 200_







                             Senior Debt Securities


<PAGE>


                         RECONCILIATION AND TIE BETWEEN
                         THE TRUST INDENTURE ACT OF 1939
                                 AND INDENTURE,
                          DATED AS OF __________, 200_*

TRUST INDENTURE
  ACT SECTION                                                  INDENTURE SECTION
---------------                                                -----------------

Section 3.10(a)(1)..........................................................6.09
          (a)(2)............................................................6.09
          (a)(3)..................................................Not Applicable
          (a)(4)..................................................Not Applicable
          (a)(5)......................................................6.08, 6.10
          (b).........................................................6.08, 6.10
          (c).....................................................Not Applicable
Section 3.11(a).............................................................6.13
          (b)...............................................................6.13
Section 3.12(a)....................................................7.01, 7.02(a)
          (b)............................................................7.02(b)
          (c)...............................................................7.03
Section 3.13(a).............................................................7.03
          (b)...............................................................7.03
          (c)...............................................................7.03
          (d)...............................................................7.03
Section 3.14(a)......................................................7.04, 10.05
          (b).....................................................Not Applicable
          (c)(1)............................................................1.02
          (c)(2)............................................................1.02
          (c)(3)..................................................Not Applicable
          (d).....................................................Not Applicable
          (e)...............................................................1.02
          (f).....................................................Not Applicable
Section 3.15(a).............................................................6.01
          (b)...............................................................6.02
          (c)...............................................................6.01
          (d)...............................................................6.01
          (e)...............................................................5.14
Section 3.16(a).............................................................1.01
          (a)(1)(A).........................................................5.12
          (a)(1)(B).........................................................5.13
          (a)(2)..................................................Not Applicable
          (b)...............................................................5.08
Section 3.17(a)(1)..........................................................5.03
          (a)(2)............................................................5.04
          (b)..............................................................10.03
Section 3.18(a).............................................................1.07
          (c)...............................................................1.07

* This table shall not, for any purpose, be deemed to be a part of the
Indenture.

                                        i

<PAGE>


                                TABLE OF CONTENTS

                                                                            PAGE
                                                                            ----

                                   ARTICLE I.

                              DEFINITIONS AND OTHER
                        PROVISIONS OF GENERAL APPLICATION

Section 1.01      Definitions..................................................1
Section 1.02      Compliance Certificates and Opinions.........................7
Section 1.03      Form of Documents Delivered to Trustee.......................7
Section 1.04      Acts of Holders; Record Dates................................8
Section 1.05      Notices, Etc., to Trustee and Company........................9
Section 1.06      Notice to Holders; Waiver...................................10
Section 1.07      Conflict with Trust Indenture Act...........................10
Section 1.08      Effect of Headings and Table of Contents....................10
Section 1.09      Successors and Assigns......................................11
Section 1.10      Separability Clause.........................................11
Section 1.11      Benefits of Indenture.......................................11
Section 1.12      Governing Law...............................................11
Section 1.13      Legal Holidays..............................................11

                                   ARTICLE II.

                                 SECURITY FORMS

Section 2.01      Forms of Securities.........................................11
Section 2.02      Form of Trustee's Certificate of Authentication.............12
Section 2.03      Securities in Global Form...................................12

                                  ARTICLE III.

                                 THE SECURITIES

Section 3.01      Amount Unlimited; Issuable in Series........................13
Section 3.02      Denominations...............................................15
Section 3.03      Execution, Authentication, Delivery and Dating..............15
Section 3.04      Temporary Securities........................................17
Section 3.05      Registration, Registration of Transfer and Exchange and
                  Book-Entry Securities.......................................17
Section 3.06      Mutilated, Destroyed, Lost and Stolen Securities............20
Section 3.07      Payment of Interest; Interest Rights Preserved..............20
Section 3.08      Persons Deemed Owners.......................................21
Section 3.09      Cancellation................................................22
Section 3.10      Computation of Interest.....................................22

                                       ii
<PAGE>

                                   ARTICLE IV.

                           SATISFACTION AND DISCHARGE

Section 4.01      Satisfaction and Discharge of Indenture.....................22
Section 4.02      Application of Trust Money..................................24

                                   ARTICLE V.

                           EVENTS OF DEFAULT; REMEDIES

Section 5.01      Events of Default...........................................24
Section 5.02      Acceleration of Maturity; Rescission and Annulment..........26
Section 5.03      Collection of Indebtedness and Suits for Enforcement by
                  Trustee.....................................................27
Section 5.04      Trustee May File Proofs of Claim............................28
Section 5.05      Trustee May Enforce Claims Without Possession of Securities.29
Section 5.06      Application of Money Collected..............................29
Section 5.07      Limitation on Suits.........................................29
Section 5.08      Unconditional Right of Holders to Receive Principal, Premium
                  and Interest................................................30
Section 5.09      Restoration of Rights and Remedies..........................30
Section 5.10      Rights and Remedies Cumulative..............................30
Section 5.11      Delay or Omission Not Waiver................................31
Section 5.12      Control by Holders..........................................31
Section 5.13      Waiver of Defaults..........................................31
Section 5.14      Undertaking for Costs.......................................32
Section 5.15      Waiver of Stay or Extension Laws............................32

                                   ARTICLE VI.

                                   THE TRUSTEE

Section 6.01      Certain Duties and Responsibilities.........................33
Section 6.02      Notice of Defaults..........................................34
Section 6.03      Certain Rights of Trustee...................................34
Section 6.04      Not Responsible for Recitals or Issuance of Securities......35
Section 6.05      May Hold Securities.........................................35
Section 6.06      Money Held in Trust.........................................35
Section 6.07      Compensation and Reimbursement..............................36
Section 6.08      Disqualification; Conflicting Interests.....................36
Section 6.09      Corporate Trustee Required; Eligibility.....................36
Section 6.10      Resignation and Removal; Appointment of Successor...........37
Section 6.11      Acceptance of Appointment by Successor......................38
Section 6.12      Merger, Conversion, Consolidation or Succession to Business.39
Section 6.13      Preferential Collection of Claims Against Company...........39
Section 6.14      Appointment of Authenticating Agent.........................39

                                  ARTICLE VII.

                                       iii
<PAGE>

                           HOLDERS' LISTS AND REPORTS
                             BY TRUSTEE AND COMPANY

Section 7.01      Company to Furnish Trustee Names and Addresses of Holders...41
Section 7.02      Preservation of Information; Communications to Holders......41
Section 7.03      Reports by Trustee..........................................42
Section 7.04      Reports by Company..........................................42
Section 7.05      Holders' Meetings...........................................42

                                  ARTICLE VIII.

                                              CONSOLIDATION, MERGER,
                          CONVEYANCE, TRANSFER OR LEASE

Section 8.01      Company May Consolidate, Etc., Only on Certain Terms........44
Section 8.02      Successor Substituted.......................................45

                                   ARTICLE IX.

                             SUPPLEMENTAL INDENTURES

Section 9.01      Supplemental Indentures Without Consent of Holders..........46
Section 9.02      Supplemental Indentures With Consent of Holders.............47
Section 9.03      Execution of Supplemental Indentures........................47
Section 9.04      Effect of Supplemental Indentures...........................48
Section 9.05      Conformity with Trust Indenture Act.........................48
Section 9.06      Reference in Securities to Supplemental Indentures..........48
Section 9.07      Notice of Supplemental Indenture............................48

                                   ARTICLE X.

                                    COVENANTS

Section 10.01     Payment of Principal, Premium and Interest..................48
Section 10.02     Maintenance of Office or Agency.............................49
Section 10.03     Money for Securities Payments to Be Held in Trust...........49
Section 10.04     Corporate Existence.........................................50
Section 10.05     Notice of Defaults..........................................50
Section 10.06     Waiver of Certain Covenants.................................51

                                   ARTICLE XI.

                            REDEMPTION OF SECURITIES

Section 11.01     Applicability of Article....................................51
Section 11.02     Election to Redeem; Notice to Trustee.......................51
Section 11.03     Selection by Trustee of Securities to Be Redeemed...........51
Section 11.04     Notice of Redemption........................................52
Section 11.05     Deposit of Redemption Price.................................53


                                       iv


<PAGE>

Section 11.06     Securities Payable on Redemption Date.......................53
Section 11.07     Securities Redeemed in Part.................................53

                                  ARTICLE XII.

                                  SINKING FUNDS

Section 12.01     Applicability of Article....................................54
Section 12.02     Satisfaction of Mandatory Sinking Fund Payments with
                  Securities..................................................54
Section 12.03     Redemption of Securities for Mandatory Sinking Fund.........54

                                  ARTICLE XIII.

                             REPAYMENT OF SECURITIES
                              AT OPTION OF HOLDERS

Section 13.01     Applicability of Article....................................55
Section 13.02     Notice of Repayment Date....................................55
Section 13.03     Deposit of Repayment Price..................................55
Section 13.04     Securities Payable on Repayment Date........................56
Section 13.05     Securities Repaid in Part...................................56

                                  ARTICLE XIV.

                       DEFEASANCE AND COVENANT DEFEASANCE

Section 14.01     Applicability of Article; Company's Option to Effect
                  Defeasance or Covenant Defeasance...........................56
Section 14.02     Defeasance and Discharge....................................57
Section 14.03     Covenant Defeasance.........................................57
Section 14.04     Conditions to Defeasance or Covenant Defeasance.............58
Section 14.05     Deposited Money and U.S. Government Obligations to be Held
                  in Trust; Other Miscellaneous Provisions....................59
Section 14.06     Reinstatement...............................................60

                                   ARTICLE XV.

                           IMMUNITY OF INCORPORATORS,
                      STOCKHOLDERS, OFFICERS AND DIRECTORS

Section 15.01     Immunity of Incorporators, Stockholders, Officers and
                  Directors...................................................60



                                       v


<PAGE>


         INDENTURE, dated as of __________, 200_, between MIDAMERICAN ENERGY
COMPANY, a corporation duly organized and existing under the laws of the State
of Iowa (herein called the "Company"), having its principal office at 666 Grand
Avenue, Des Moines, Iowa 50303, and _____________________, a national banking
association duly organized and existing under the laws of the United States, as
Trustee (herein called the "Trustee"), having its Corporate Trust Office at
___________________________.

                             RECITALS OF THE COMPANY

         The Company has duly authorized the execution and delivery of this
Indenture to provide for the issuance from time to time of its unsubordinated
debentures, notes or other evidences of indebtedness (herein called the
"Securities"), to be issued in one or more series as in this Indenture provided.

         All things necessary to make this Indenture a valid agreement of the
Company, in accordance with its terms, have been done.

                   NOW, THEREFORE, THIS INDENTURE WITNESSETH:

         For and in consideration of the premises and the purchase of the
Securities by the Holders thereof, it is mutually covenanted and agreed, for the
equal and proportionate benefit of all Holders of the Securities or of any
series thereof, as follows:

                                   ARTICLE I.

                              DEFINITIONS AND OTHER
                        PROVISIONS OF GENERAL APPLICATION

         Section 1.01 Definitions.

         For all purposes of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:

               (1) the terms defined in this Article have the meanings assigned
          to them in this Article and include the plural as well as the
          singular;

               (2) all other terms used herein which are defined in the Trust
          Indenture Act, either directly or by reference therein, have the
          meanings assigned to them therein;

               (3) all accounting terms not otherwise defined herein have the
          meanings assigned to them in accordance with generally accepted
          accounting principles;

               (4) the words "herein," "hereof" and "hereunder" and other words
          of similar import refer to this Indenture as a whole and not to any
          particular Article, Section or other subdivision.

         Certain terms, used principally in Article VI, are defined in that
Article.


<PAGE>

         "Act," when used with respect to any Holder, has the meaning specified
in Section 1.04.

         "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person. For the purposes of this definition,
"control," when used with respect to any specified Person, means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

         "Authenticating Agent" means any Person authorized by the Trustee
pursuant to Section 6.14 to act on behalf of the Trustee to authenticate
Securities of one or more series.

         "Authorized Newspaper" means a newspaper of general circulation in the
relevant area, printed in the English language and customarily published on each
Business Day therein.

         "Board of Directors" means either the board of directors of the Company
or any duly authorized committee of that board or any director or directors
and/or officer or officers of the Company to whom that board or committee shall
have duly delegated its authority.

         "Board Resolution" means a copy of a resolution certified by the
Secretary or an Assistant Secretary of the Company to have been duly adopted by
the Board of Directors and to be in full force and effect on the date of such
certification, and delivered to the Trustee.

         "Business Day," when used with respect to any Place of Payment, means
each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day on which
banking institutions in that Place of Payment are authorized or obligated by law
or executive order to close.

         "Capital Stock," as applied to the stock of any corporation, means the
capital stock of every class whether now or hereafter authorized, regardless of
whether such capital stock shall be limited to a fixed sum or percentage with
respect to the rights of the holders thereof to participate in dividends and in
the distribution of assets upon the voluntary or involuntary liquidation,
dissolution or winding up of such corporation.

         "Commission" means the Securities and Exchange Commission, as from time
to time constituted, created under the Securities Exchange Act of 1934, as
amended or, if at any time after the execution of this Indenture such Commission
is not existing and performing the duties now assigned to it under the Trust
Indenture Act, then the body performing such duties at such time.

         "Company" means the Person named as the "Company" in the first
paragraph of this Indenture until a successor corporation shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Company" shall mean such successor corporation.

         "Company Request" or "Company Order" means a written request or order
signed in the name of the Company by its Chairman of the Board, its President or
a Vice President, and by its Treasurer, an Assistant Treasurer, its Secretary or
an Assistant Secretary, and delivered to the Trustee.

                                       2
<PAGE>

         "Corporate Trust Office" means the principal corporate trust office of
the Trustee at which, at any particular time, its corporate trust business shall
be administered, which office at the date hereof is located at________________.

         "Corporation" includes corporations, associations, companies and
business trusts.

         "Debt" means, with respect to any Person, (a) any liability of such
Person (i) for borrowed money or (ii) evidenced by a bond, note, debenture or
similar instrument (including purchase money obligations but excluding trade
payables), or (iii) for the payment of money relating to a lease that is
required to be classified as a capitalized lease obligation in accordance with
generally accepted accounting principles; (b) any liability of others described
in the preceding clause (a) that such Person has guaranteed, that is recourse to
such Person or that is otherwise such Person's legal liability; and (c) any
amendment, supplement, modification, deferral, renewal, extension or refunding
of any liability of the types referred to in clauses (a) and (b) above.

         "Defaulted Interest" has the meaning specified in Section 3.07.

         "Depositary" means, with respect to the Securities of any series
issuable or issued in the form of a Global Security, a clearing agency
registered under the Securities Exchange Act of 1934, as amended, or any
successor thereto, which shall in either case be designated by the Company
pursuant to Section 3.01 or 3.05 until a successor Depositary shall have become
such pursuant to the applicable provisions of this Indenture, and thereafter
"Depositary" shall mean or include each Person who is then a Depositary
hereunder, and if at any time there is more than one such Person, "Depositary"
as used with respect to the Securities of any such series shall mean the
Depositary with respect to the Securities of that series.

         "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended, including the regulations and published interpretations thereunder.

         "Event of Default" has the meaning specified in Section 5.01.

         "generally accepted accounting principles" or "GAAP" means, as of any
date of computation, generally accepted accounting principles in the United
States, consistently applied, that are in effect on the date of such
computation.

         "Global Security or Securities" means one or more fully registered
Securities in global form evidencing all or a part of a series of Securities
issued to the Depositary for such series or its nominee or registered in the
name of the Depositary or its nominee.

         "Holder" means a Person in whose name a Security is registered in the
Security Register.

         "Indenture" means this instrument as originally executed or as it may
from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof
and shall include the terms of particular series of Securities established as
contemplated by Section 3.01.

                                       3
<PAGE>

         "Independent Investment Banker" means one of the Reference Treasury
Dealers appointed by the Trustee after consultation with the Company.

         "interest," when used with respect to an Original Issue Discount
Security which by its terms bears interest only after Maturity, means interest
payable after Maturity.

         "Interest Payment Date," when used with respect to any Security, means
the Stated Maturity of an installment of interest on such Security.

         "Loan Document" has the meaning specified in Section 5.01(5).

         "Maturity," when used with respect to any Security, means the date on
which the principal of such Security or an installment of principal becomes due
and payable as therein or herein provided, whether at the Stated Maturity or by
declaration of acceleration, call for redemption or by repayment or otherwise.

         "Notice of Default" has the meaning specified in Section 5.01(4).

         "Officers' Certificate" means a certificate signed by at least two
officers of the Company, one signature being that of the Chairman of the Board,
the Vice Chairman of the Board, the President or a Vice President, and the other
signature being that of the Treasurer, an Assistant Treasurer, the Secretary or
an Assistant Secretary, of the Company, and delivered to the Trustee.

         "Opinion of Counsel" means a written opinion of counsel, who may be
counsel for the Company, and who shall be acceptable to the Trustee.

         "Original Issue Discount Security" means any Security which provides
for an amount less than the principal amount thereof to be due and payable upon
a declaration of acceleration of the Maturity thereof pursuant to Section 5.02.

         "Outstanding," when used with respect to Securities, means, as of the
date of determination, all Securities theretofore authenticated and delivered
under this Indenture, except:

               (i) Securities theretofore canceled by the Trustee or delivered
          to the Trustee for cancellation;

               (ii) Securities for whose payment or redemption money in the
          necessary amount has been theretofore deposited with the Trustee or
          any Paying Agent (other than the Company) in trust or set aside and
          segregated in trust by the Company (if the Company shall act as its
          own Paying Agent) for the Holders of such Securities; provided that,
          if such Securities are to be redeemed, notice of such redemption has
          been duly given pursuant to this Indenture or provision therefor
          satisfactory to the Trustee has been made;

               (iii) Securities which have been paid pursuant to Section 3.06 or
          in exchange for or in lieu of which other Securities have been
          authenticated and delivered pursuant to this Indenture, other than any
          such Securities in respect of which there shall have been presented to
          the Trustee proof satisfactory to it that such Securities are held by
          a bona fide purchaser in whose hands such Securities are valid
          obligations of the Company; and

                                       4
<PAGE>

               (iv) Securities with respect to which the Company has effected
          defeasance as provided in Article XIV;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder, (a) the principal
amount of an Original Issue Discount Security that shall be deemed to be
Outstanding shall be the amount of the principal thereof that would be due and
payable as of the date of such determination upon a declaration of acceleration
of the Maturity thereof pursuant to Section 5.02, and (b) Securities owned by
the Company or any other obligor upon the Securities or any Affiliate of the
Company or of such other obligor shall be disregarded and deemed not to be
Outstanding, except that, in determining whether the Trustee shall be protected
in relying upon any such request, demand, authorization, direction, notice,
consent or waiver, only Securities which the Trustee knows to be so owned shall
be so disregarded. Securities so owned which have been pledged in good faith may
be regarded as Outstanding if the pledgee establishes to the satisfaction of the
Trustee the pledgee's right so to act with respect to such Securities and that
the pledgee is not the Company or any other obligor upon the Securities or any
Affiliate of the Company or of such other obligor.

         "Paying Agent" means any Person authorized by the Company to pay the
principal of (and premium, if any) or interest on any Securities on behalf of
the Company.

         "Person" means any individual, corporation, limited liability company,
partnership, joint venture, association, joint-stock company, trust,
unincorporated organization or government or any agency or political subdivision
thereof.

         "Place of Payment," when used with respect to the Securities of any
series, means the place or places where the principal of (and premium, if any)
and interest on the Securities of that series are payable as specified as
contemplated by Section 3.01.

         "Predecessor Security" of any particular Security means every previous
Security evidencing all or a portion of the same debt as that evidenced by such
particular Security; and, for the purposes of this definition, any Security
authenticated and delivered under Section 3.06 in exchange for or in lieu of a
mutilated, destroyed, lost or stolen Security shall be deemed to evidence the
same debt as the mutilated, destroyed, lost or stolen Security.

         "Redemption Date," when used with respect to any Security to be
redeemed, means the date fixed for such redemption by or pursuant to this
Indenture.

         "Redemption Price," when used with respect to any Security to be
redeemed, means the price at which it is to be redeemed pursuant to this
Indenture.

         "Reference Treasury Dealer" means each of __________________, ________
_________________ and ____________________ and their respective successors;
provided, however, that if any of the foregoing shall cease to be a primary U.S.
Government securities dealer in New York City (a "Primary Treasury Dealer"), the
Company shall substitute therefor another Primary Treasury Dealer.

                                       5
<PAGE>

         "Reference Treasury Dealer Quotations" means, with respect to each
Reference Treasury Dealer and any redemption date, the average, as determined by
the Trustee, of the bid and asked prices for the Comparable Treasury Issue
(expressed in each case as a percentage of its principal amount) quoted in
writing to the Trustee by such Reference Treasury Dealer by 5:00 p.m. on the
third Business Day preceding such redemption date.

         "Regular Record Date" for the interest payable on any Interest Payment
Date on the Securities of any series means the date specified for that purpose
as contemplated by Section 3.01.

         "Repayment Date" means, when used with respect to any Security to be
repaid at the option of the Holder, the date fixed for such repayment by or
pursuant to this Indenture.

         "Repayment Price" means, when used with respect to any Security to be
repaid at the option of the Holder, the price at which it is to be repaid by or
pursuant to this Indenture.

         "Responsible Officer," when used with respect to the Trustee, means any
officer of the Trustee customarily performing corporate trust functions.

         "Securities" has the meaning stated in the first recital of this
Indenture and more particularly means any Securities authenticated and delivered
under this Indenture.

         "Security Register" and "Security Registrar" have the respective
meanings specified in Section 3.05.

         "Special Record Date" for the payment of any Defaulted Interest means a
date fixed by the Trustee pursuant to Section 3.07.

         "Stated Maturity," when used with respect to any Security or any
installment of principal thereof or interest thereon, means the date specified
in such Security as the fixed date on which the principal or such installment of
principal of (and premium, if any) or interest on such Security is due and
payable.

         "Subsidiary" means a corporation more than 50% of the outstanding
voting stock of which is owned, directly or indirectly, by the Company or by one
or more other Subsidiaries, or by the Company and one or more other
Subsidiaries. For the purposes of this definition, "voting stock" means stock
which ordinarily has voting power for the election of directors, whether at all
times or only so long as no senior class of stock has such voting power by
reason of any contingency.

         "Trustee" means the Person named as the "Trustee" in the first
paragraph of this indenture until a successor Trustee shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Trustee" shall mean or include each Person who is then a Trustee hereunder, and
if at any time there is more than one such Person, "Trustee" as used with
respect to the Securities of any series shall mean the Trustee with respect to
Securities of that series.

                                       6
<PAGE>

         "Trust Indenture Act" means the Trust Indenture Act of 1939 as in force
at the date as of which this Indenture was executed; provided, however, that in
the event the Trust Indenture Act of 1939 is amended after such date, "Trust
Indenture Act" means, to the extent required by any such amendment, the Trust
Indenture Act of 1939 as so amended.

         "United States" means the United States of America.

         "U.S. Government Obligations" has the meaning specified in Section
14.04.

         "Vice President," when used with respect to the Company, means any vice
president, whether or not designated by a number or a word or words added before
or after the title "vice president."

         Section 1.02 Compliance Certificates and Opinions.

         Upon any application or request by the Company to the Trustee to take
any action under any provision of this Indenture, the Company shall furnish to
the Trustee an Officers' Certificate stating that all conditions precedent, if
any, provided for in this Indenture relating to the proposed action have been
complied with and an Opinion of Counsel stating that in the opinion of such
counsel all such conditions precedent, if any, have been complied with, except
that in the case of any such application or request as to which the furnishing
of such documents is specifically required by any provision of this Indenture
relating to such particular application or request, no additional certificate or
opinion need be furnished.

         Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture (other than the certificate
provided for in Section 10.05) shall include:

               (1) a statement that each individual signing such certificate or
          opinion has read such covenant or condition and the definitions herein
          relating thereto;

               (2) a brief statement as to the nature and scope of the
          examination or investigation upon which the statements or opinions
          contained in such certificate or opinion are based;

               (3) a statement that, in the opinion of each such individual, he
          has made such examination or investigation as is necessary to enable
          him to express an informed opinion as to whether or not such covenant
          or condition has been complied with; and

               (4) a statement as to whether, in the opinion of each such
          individual, such condition or covenant has been complied with.

         Section 1.03 Form of Documents Delivered to Trustee.

         In any case where several matters are required to be certified by, or
covered by an opinion of, any specified Person, it is not necessary that all
such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or give an opinion with respect to some matters


                                       7
<PAGE>

and one or more other such Persons as to other matters, and any such Person may
certify or give an opinion as to such matters in one or several documents.

         Any certificate or opinion of an officer of the Company may be based,
insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to the matters upon which his certificate or opinion are based are
erroneous. Any such certificate or Opinion of Counsel may be based, insofar as
it relates to factual matters, upon a certificate or opinion of, or
representations by, an officer or officers of the Company stating that the
information with respect to such factual matters is in the possession of the
Company, unless such counsel knows, or in the exercise of reasonable care should
know, that the certificate or opinion or representations with respect to such
matters are erroneous.

         Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

         Section 1.04 Acts of Holders; Record Dates.

         (a) Any request, demand, authorization, direction, notice, consent,
waiver or other action provided by this Indenture to be given or taken by
Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by an agent duly
appointed in writing; and, except as herein otherwise expressly provided, such
action shall become effective when such instrument or instruments are delivered
to the Trustee and, where it is hereby expressly required, to the Company. Such
instrument or instruments (and the action embodied therein and evidenced
thereby) are herein sometimes referred to as the "Act" of the Holders signing
such instrument or instruments. Proof of execution of any such instrument or of
a writing appointing any such agent shall be sufficient for any purpose of this
Indenture and (subject to Section 6.01) conclusive in favor of the Trustee and
the Company, if made in the manner provided in this Section.

         (b) The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof. Where such
execution is by a signer acting in a capacity other than his individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of his authority. The fact and date of the execution of any such instrument or
writing, or the authority of the Person executing the same, may also be proved
in any other manner which the Trustee deems sufficient.

         (c) The ownership of Securities shall be proved by the Security
Register.

         (d) Any request, demand, authorization, direction, notice, consent,
waiver or other Act of the Holder of any Security shall bind every future Holder
of the same Security and the Holder of every Security issued upon the
registration of transfer thereof or in exchange therefor or in lieu thereof in
respect of anything done, omitted or suffered to be done by the Trustee or the
Company in reliance thereon, whether or not notation of such action is made upon
such Security.

                                       8
<PAGE>

         (e) The Company may, in the circumstances permitted by the Trust
Indenture Act, fix any day as the record date for the purpose of determining the
Holders of Securities of any series entitled to give or take any request,
demand, authorization, direction, notice, consent, waiver or other action, or to
vote on any action, authorized or permitted to be given or taken by Holders of
Securities of such series. If not set by the Company prior to the first
solicitation of a Holder of Securities of such series made by any Person in
respect of any such action, or in the case of any such vote, prior to such vote,
the record date for any such action or vote shall be the 30th day (or, if later,
the date of the most recent list of Holders required to be provided pursuant to
Section 7.01) prior to such first solicitation or vote, as the case may be. With
regard to any record date for action to be taken by the Holders of one or more
series of Securities, only the Holders of Securities of such series on such date
(or their duly designated proxies) shall be entitled to give or take, or vote
on, the relevant action.

         (f) Without limiting the foregoing, a Holder entitled hereunder to take
any action hereunder with regard to any particular Security may do so with
regard to all or any part of the principal amount of such Security or by one or
more duly appointed agents each of which may do so pursuant to such appointment
with regard to all or any part of such principal amount. Any notice given or
action taken by a Holder or its agents with regard to different parts of such
principal amount pursuant to this paragraph shall have the same effect as if
given or taken by separate Holders of each such different part.

         (g) Without limiting the generality of the foregoing, unless otherwise
specified pursuant to Section 3.01 or pursuant to one or more indentures
supplemental hereto, a Holder, including a Depositary that is the Holder of a
Global Security, may make, give or take, by a proxy or proxies duly appointed in
writing, any request, demand, authorization, direction, notice, consent, waiver
or other action provided in this Indenture to be made, given or taken by
Holders, and a Depositary that is the Holder of a Global Security may provide
its proxy or proxies to the beneficial owners of interests in any such Global
Security through such Depositary's standing instructions and customary
practices.

         (h) The Trustee shall fix a record date for the purpose of determining
the Persons who are beneficial owners of interests in any Global Security held
by a Depositary entitled under the procedures of such Depositary to make, give
or take, by a proxy or proxies duly appointed in writing, any request, demand,
authorization, direction, notice, consent, waiver or other action provided in
this Indenture to be made, given or taken by Holders. If such a record date is
fixed, the Holders on such record date or their duly appointed proxy or proxies,
and only such Persons, shall be entitled to make, give or take such request,
demand, authorization, direction, notice, consent, waiver or other action,
whether or not such Holders remain Holders after such record date. No such
request, demand, authorization, direction, notice, consent, waiver or other
action shall be valid or effective if made, given or taken more than 90 days
after such record date.

         Section 1.05 Notices, Etc., to Trustee and Company.

         Any request, demand, authorization, direction, notice, consent, waiver
or Act of Holders or other document provided or permitted by this Indenture to
be made upon, given or furnished to, or filed with,

                                       9
<PAGE>

               (1) the Trustee by any Holder or by the Company shall be
          sufficient for every purpose hereunder if made, given, furnished or
          filed in writing to or with the Trustee at its Corporate Trust Office,
          Attention: ___________________________, or

               (2) the Company by the Trustee or by any Holder shall be
          sufficient for every purpose hereunder (unless otherwise herein
          expressly provided) if in writing and mailed, first-class postage
          prepaid, to the Company addressed to it at the address of its
          principal office specified in the first paragraph of this Indenture,
          Attention: Secretary, or at any other address previously furnished in
          writing to the Trustee by the Company.

         Section 1.06 Notice to Holders; Waiver.

         Where this Indenture provides for notice to Holders of any event, such
notice shall be sufficiently given (unless otherwise herein expressly provided)
if in writing and mailed, first-class postage prepaid, to each Holder affected
by such event, at his address as it appears in the Security Register, not later
than the latest date, and not earlier than the earliest date, prescribed for the
giving of such notice. In any case where notice to Holders is given by mail,
neither the failure to mail such notice, nor any defect in any notice so mailed,
to any particular Holder shall affect the sufficiency of such notice with
respect to other Holders. Any notice to a Holder which is mailed in the manner
herein provided shall be conclusively presumed to have been duly given, whether
or not such Holder receives such notice. Where this Indenture provides for
notice in any manner, such notice may be waived in writing by the Person
entitled to receive such notice, either before or after the event, and such
waiver shall be the equivalent of such notice. Waivers of notice by Holders
shall be filed with the Trustee, but such filing shall not be a condition
precedent to the validity of any action taken in reliance upon such waiver.

         In case, by reason of the suspension of or irregularities in regular
mail service or by reason of any other cause, it shall be impracticable to give
notice of any event to Holders by mail when such notice is required to be given
pursuant to any provision of this Indenture, then such notification as shall be
made with the approval of the Trustee shall constitute a sufficient notification
for every purpose hereunder.

         Section 1.07 Conflict with Trust Indenture Act.

         If any provision hereof limits, qualifies or conflicts with the duties
imposed by any of Sections 3.10 through 3.17, inclusive, of the Trust Indenture
Act through the operation of Section 3.18(c) thereof, such imposed duties shall
control. If any provision of this Indenture modifies or excludes any provision
of the Trust Indenture Act that may be so modified or excluded, the latter
provision shall be deemed to apply to this Indenture as so modified or shall be
deemed to be so excluded, as the case may be.

         Section 1.08 Effect of Headings and Table of Contents.

         The Article and Section headings herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.

                                       10
<PAGE>

         Section 1.09 Successors and Assigns.

         All covenants and agreements in this Indenture by the Company shall
bind its successors and assigns, whether so expressed or not.

         Section 1.10 Separability Clause.

         In case any provision in this Indenture or in the Securities shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.

         Section 1.11 Benefits of Indenture.

         Nothing in this Indenture or in the Securities, express or implied,
shall give to any Person, other than the parties hereto and their successors
hereunder, any Paying Agent and the Holders, any benefit or any legal or
equitable right, remedy or claim under this Indenture; provided that this
Section 1.11 shall not limit the rights of any Holder of a Global Security to
give any notice or take any action, or appoint any agents, with regard to any
part or different parts of the principal amount of such Global Security pursuant
to Section 1.04.

         Section 1.12 Governing Law.

         This Indenture and the Securities shall be governed by and construed in
accordance with the laws of the State of New York and for all purposes shall be
governed by and construed in accordance with the laws of said state without
regard to the conflicts of laws and rules of said state.

         Section 1.13 Legal Holidays.

         In any case where any Interest Payment Date, Redemption Date, Repayment
Date, sinking fund payment date or Stated Maturity of any Security shall not be
a Business Day at any Place of Payment, then (notwithstanding any other
provision of this Indenture or of the Securities) payment of interest or
principal (and premium, if any) need not be made on such date, but may be made
on the next succeeding Business Day with the same force and effect as if made on
the Interest Payment Date, Redemption Date, Repayment Date, sinking fund payment
date or at the Stated Maturity, provided that no interest shall accrue for the
period from and after such Interest Payment Date, Redemption Date, Repayment
Date, sinking fund payment date or Stated Maturity, as the case may be.

                                  ARTICLE II.

                                 SECURITY FORMS

         Section 2.01 Forms of Securities.

         The Securities of each series shall be in such form or forms (including
global form) as shall be established by or pursuant to a Board Resolution or in
one or more indentures supplemental hereto, in each case with such appropriate
insertions, omissions, substitutions and


                                       11
<PAGE>

other variations as are required or permitted by this Indenture, and may have
such letters, numbers or other marks of identification and such legends or
endorsements placed thereon as may be required to comply with any law or with
any rules made pursuant thereto or the rules of any securities exchange or as
may, consistently herewith, be determined by the officers executing such
Securities, as evidenced by their execution of such Securities. If the form of
Securities of any series is established by action taken pursuant to a Board
Resolution, a copy of an appropriate record of such action shall be certified by
the Secretary or an Assistant Secretary of the Company and delivered to the
Trustee at or prior to the delivery of the Company Order contemplated by Section
3.03 for the authentication and delivery of such Securities.

         The Trustee's certificates of authentication shall be in substantially
the form set forth in this Article.

         The definitive Securities shall be printed, lithographed or engraved or
may be produced in any other manner permitted by the rules of any securities
exchange upon which the Securities may be listed and (with respect to Global
Securities of any Series) the rules of the Depositary, all as determined by the
officers executing such Securities, as evidenced by their execution of such
Securities.

         Section 2.02 Form of Trustee's Certificate of Authentication.

         This is one of the Securities of the series designated therein referred
to in the within-mentioned Indenture.


                                   -------------------------,
                                   as Trustee



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


         Section 2.03 Securities in Global Form.

         If any Security of a series is issuable in global form, such Security
may provide that it shall represent the aggregate amount of Outstanding
Securities from time to time endorsed thereon and also may provide that the
aggregate amount of Outstanding Securities represented thereby may from time to
time be reduced to reflect exchanges. Any endorsement of a Security in global
form to reflect the amount, or any increase or decrease in the amount, of
Outstanding Securities represented thereby shall be made by the Trustee and in
such manner as shall be specified in such Security. Any instructions by the
Company with respect to a Security in global form, after its initial issuance,
shall be in writing but need not comply with Section 1.02.

                                       12
<PAGE>

                                  ARTICLE III.

                                 THE SECURITIES

         Section 3.01 Amount Unlimited; Issuable in Series.

         The aggregate principal amount of Securities which may be authenticated
and delivered under this Indenture is unlimited.

         The Securities may be issued in one or more series. All Securities of
each series issued under this Indenture shall in all respects be equally and
ratably entitled to the benefits hereof with respect to such series without
preference, priority or distinction on account of the actual time of the
authentication and delivery or Maturity of the Securities of such series. There
shall be established in or pursuant to a Board Resolution, and, to the extent
not set forth therein, set forth in an Officers' Certificate, or established in
one or more indentures supplemental hereto, prior to the issuance of Securities
of any series:

               (1) the title of the Securities of the series (which shall
          distinguish the Securities of the series from all other series of
          Securities);

               (2) the price or prices (expressed as a percentage of the
          aggregate principal amount thereof) at which the Securities will be
          issued;

               (3) any limit upon the aggregate principal amount of the
          Securities of the series which may be authenticated and delivered
          under this Indenture (except for Securities authenticated and
          delivered upon registration of transfer of, or in exchange for, or in
          lieu of, other Securities of that series pursuant to Section 3.04,
          3.05, 3.06, 9.06, 11.06, 13.05 or 14.03);

               (4) the date or dates on which the principal and premium, if any,
          of the Securities of the series is payable;

               (5) the rate or rates (which may be fixed or variable), or the
          method of determination thereof, at which the Securities of the series
          shall bear interest, if any, the date or dates from which such
          interest shall accrue, the Interest Payment Dates on which such
          interest shall be payable and the Regular Record Date for the interest
          payable on any Interest Payment Date or, if the principal amount
          payable at the Stated Maturity of any of the Securities will not be
          determinable as of any one or more dates prior to the Stated Maturity,
          the amount which will be deemed to be such principal amount as of any
          such date for any purpose, including the principal amount thereof
          which will be due and payable upon any Maturity other than the Stated
          Maturity or which will be deemed to be Outstanding as of any such date
          (or, in any such case, the manner in which such deemed principal
          amount is to be determined);

               (6) if other than the Corporate Trust Office, the place or places
          where the principal of (and premium, if any) and interest on
          Securities of the series shall be payable;

                                       13
<PAGE>

               (7) the period or periods within which, the price or prices at
          which and the terms and conditions upon which Securities of the series
          may be redeemed, in whole or in part, at the option of the Company;

               (8) the obligation, if any, of the Company to redeem or purchase
          Securities of the series pursuant to any mandatory sinking fund or
          analogous provisions or at the option of a Holder thereof and the
          period or periods within which, the price or prices at which and the
          terms and conditions upon which Securities of the series shall be
          redeemed or purchased, in whole or in part, pursuant to such
          obligation;

               (9) if other than denominations of $1,000 and any integral
          multiple thereof, the denominations in which Securities of the series
          shall be issuable;

               (10) if other than the principal amount thereof, the portion of
          the principal amount of Securities of the series which shall be
          payable upon declaration of acceleration of the Maturity thereof
          pursuant to Section 5.02;

               (11) if the Securities of the series shall be issued in whole or
          in part in the form of a Global Security or Securities, the terms and
          conditions upon which such Global Security may be exchanged in whole
          or in part for other individual securities and the Depositary for such
          Global Security or Securities;

               (12) any addition to or change in the Events of Default which
          applies to any Securities of the series;

               (13) any addition to or change in the covenants set forth in
          Article X which applies to Securities of the series;

               (14) the nature and terms of the security for any secured
          Securities;

               (15) the form and terms of any guarantee of the Securities;

               (16) the application, if any, of Section 14.02 or 14.03 to the
          Securities of the series and any provisions in modification of, in
          addition to or in lieu of any of the provisions of Article XIV;

               (17) the listing of the Securities on any securities exchange or
          the inclusion in any other market or quotation or trading system;

               (18) any Trustee, Authenticating Agent, Paying Agent, issuing or
          transfer agent or Securities Registrar or any other Person appointed
          to act in connection with such Securities for or on behalf of the
          Holders thereof or the Company; and

               (19) any other terms of the series (which terms shall not be
          inconsistent with the provisions of this Indenture).

         All Securities of any one series shall be substantially identical
except as to denomination and except as may otherwise be provided in or pursuant
to such Board Resolution and set forth in


                                       14
<PAGE>

such Officers' Certificate, to the extent applicable, or in any such indenture
supplemental hereto. All Securities of any one series need not be issued at the
same time and, unless otherwise provided, a series may be reopened, without the
consent of the Holders, for issuance of additional Securities of such series.

         If any of the terms of the series are established by action taken
pursuant to a Board Resolution, a copy of an appropriate record of such action
shall be certified by the Secretary or an Assistant Secretary of the Company and
delivered to the Trustee at or prior to the delivery of the Board Resolution or
the Officers' Certificate setting forth the terms of the series.

         Section 3.02 Denominations.

         The Securities of each series shall be issuable in registered form with
or without coupons in such denominations as shall be specified as contemplated
by Section 3.01. In the absence of any such provisions with respect to the
Securities of any series, the Securities of such series shall be issuable in
denominations of $1,000 and any integral multiple thereof.

         Section 3.03 Execution, Authentication, Delivery and Dating.

         The Securities shall be executed on behalf of the Company by its
Chairman of the Board, its Vice Chairman of the Board, its President or one of
its Vice Presidents and attested by its Secretary or one of its Assistant
Secretaries. The signature of any of these officers on the Securities may be
manual or facsimile.

         Securities bearing the manual or facsimile signatures of individuals
who were at any time the proper officers of the Company shall bind the Company,
notwithstanding that such individuals or any of them have ceased to hold such
offices prior to the authentication and delivery of such Securities or did not
hold such offices at the date of such Securities.

         At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities of any series executed by the
Company to the Trustee for authentication, and the Trustee shall authenticate
and deliver such Securities upon Company Order. If all the Securities of any one
series are not to be originally issued at one time and if a Board Resolution
relating to such Securities shall so permit, such Company Order may set forth
procedures (acceptable to the Trustee) for the issuance and authentication of
such Securities.

         If the form or terms of the Securities of the series have been
established in or pursuant to one or more Board Resolutions as permitted by
Sections 2.01 and 3.01, in authenticating such Securities, and accepting the
additional responsibilities under this Indenture in relation to such Securities,
the Trustee shall be entitled to receive, and (subject to Section 6.01) shall be
fully protected in relying upon, an Opinion of Counsel stating:

               (a) if the form of such Securities has been established by or
          pursuant to Board Resolution as permitted by Section 2.01, that such
          form has been established in conformity with the provisions of this
          Indenture;

                                       15
<PAGE>

               (b) if the terms of such Securities have been established by or
          pursuant to Board Resolution as permitted by Section 3.01, that such
          terms have been established in conformity with the provisions of this
          Indenture; and

               (c) that such Securities, when authenticated and delivered by the
          Trustee and issued by the Company in the manner and subject to any
          conditions specified in such Opinion of Counsel, will constitute valid
          and legally binding obligations of the Company enforceable in
          accordance with their terms, subject to bankruptcy, insolvency,
          fraudulent transfer, reorganization, moratorium and similar laws of
          general applicability relating to or affecting creditors' rights and
          to general equity principles.

         If such form or terms have been so established, the Trustee shall not
be required to authenticate such Securities if the issue of such Securities
pursuant to this Indenture will affect the Trustee's own rights, duties or
immunities under the Securities and this Indenture or otherwise in a manner
which is not reasonably acceptable to the Trustee.

         Notwithstanding the provisions of Section 3.01 and of the preceding
paragraph, if all Securities of a series are not to be originally issued at one
time, it shall not be necessary to deliver the Board Resolution or Officers'
Certificate otherwise required pursuant to Section 3.01 or the Company Order and
Opinion of Counsel otherwise required pursuant to this Section 3.03 at or prior
to the time of authentication of each Security of such series if such documents
are delivered at or prior to the authentication upon original issuance of the
first Security of such series to be issued and such documents reasonably
contemplate the issuance of all Securities of such series.

         Unless otherwise provided in the form of Security for any series, each
Security shall be dated the date of its authentication.

         No Security shall be entitled to any benefit under this Indenture or be
valid or obligatory for any purpose unless there appears on such Security a
certificate of authentication substantially in the form provided for herein
executed by the Trustee by manual signature of an authorized officer, and such
certificate upon any Security shall be conclusive evidence, and the only
evidence, that such Security has been duly authenticated and delivered hereunder
and is entitled to the benefits of this Indenture.

         If the Company shall establish pursuant to Section 3.01 that the
Securities of a series are to be issued in the form of one or more Global
Securities, then the Company shall execute and the Trustee shall, in accordance
with this Section and the Company Order with respect to such series,
authenticate and deliver one or more Global Securities that (i) shall represent
and shall be denominated in an amount equal to the aggregate principal amount of
all of the Securities of such series having the same terms issued and not yet
canceled, (ii) shall be registered in the name of the Depositary for such Global
Security or Securities or the nominee of such Depositary, (iii) shall be
delivered by the Trustee to such Depositary or pursuant to such Depositary's
instructions and (iv) shall bear a legend substantially to the following effect:
"Unless and until it is exchanged in whole or in part for Securities in
definitive registered form, this Security may not be transferred except as a
whole by the Depositary to the nominee of the Depositary or by a nominee of the
Depositary to the Depositary or another nominee of the Depositary or by the

                                       16
<PAGE>

Depositary or any such nominee to a successor Depositary or a nominee of such
successor Depositary."

         Section 3.04 Temporary Securities.

         Pending the preparation of definitive Securities of any series, the
Company may execute, and upon Company Order the Trustee shall authenticate and
deliver, temporary Securities which are printed, lithographed, typewritten,
mimeographed or otherwise produced, in any authorized denomination,
substantially of the tenor of the definitive Securities in lieu of which they
are issued and with such appropriate insertions, omissions, substitutions and
other variations as the officers executing such Securities may determine, as
evidenced by their execution of such Securities. Every such temporary Security
shall be executed by the Company and shall be authenticated and delivered by the
Trustee upon the same conditions and in substantially the same manner, and with
the same effect, as the definitive Security in lieu of which it is issued.

         If temporary Securities of any series are issued, the Company will
cause definitive Securities of that series to be prepared without unreasonable
delay. After the preparation of definitive Securities of such series, the
temporary Securities of such series shall be exchangeable for definitive
Securities of such series upon surrender of the temporary Securities of such
series at the office or agency of the Company in a Place of Payment for that
series, without charge to the Holder. Upon surrender for cancellation of any one
or more temporary Securities of any series the Company shall execute and the
Trustee shall authenticate and deliver in exchange therefor a like principal
amount of definitive Securities of the same series of authorized denominations.
Until so exchanged the temporary Securities of any series shall in all respects
be entitled to the same benefits under this Indenture as definitive Securities
of such series.

         Section 3.05 Registration, Registration of Transfer and Exchange and
Book-Entry Securities.

         The Company shall cause to be kept at one of its offices or agencies
maintained pursuant to Section 10.02 a register (the register maintained in such
office being herein sometimes referred to as the "Security Register") in which,
subject to such reasonable regulations as it may prescribe, the Company shall
provide for the registration of exchanges and transfers of Securities. The
Person responsible for the maintenance of the Security Register is referred to
herein as the "Security Registrar." The Trustee is hereby initially appointed
Security Registrar for the purpose of registering Securities and transfers of
Securities as herein provided. The exchange of and the transfer of Securities
also may be registered at the office of the Trustee.

         Upon surrender for registration of transfer of any Security of any
series at the office or agency in a Place of Payment for that series, the
Company shall execute, and the Trustee shall authenticate and deliver, in the
name of the designated transferee or transferees, one or more new Securities of
the same series, of any authorized denominations and of a like aggregate
principal amount.

         At the option of the Holder, Securities of any series (except Global
Securities) may be exchanged for other Securities of the same series (except
Global Securities) of any authorized denominations and of a like aggregate
principal amount, upon surrender of the Securities to be


                                       17
<PAGE>

exchanged at such office or agency. Whenever any Securities are so surrendered
for exchange, the Company shall execute, and the Trustee shall authenticate and
deliver, the Securities which the Holder making the exchange is entitled to
receive.

         All Securities issued upon any registration of transfer or exchange of
Securities shall be valid obligations of the Company, evidencing the same debt,
and entitled to the same benefits under this Indenture, as the Securities
surrendered upon such registration of transfer or exchange.

         Every Security presented or surrendered for registration of transfer or
for exchange shall (if so required by the Company or the Security Registrar) be
duly endorsed, or be accompanied by a written instrument of transfer in form
satisfactory to the Company and the Security Registrar duly executed, by the
Holder thereof or his attorney duly authorized in writing.

         No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any registration of transfer or exchange of Securities, other than
exchanges pursuant to Section 3.04, 9.06, 11.06, 13.05 or 14.03 not involving
any transfer.

         The Company shall not be required (i) to issue, register the transfer
of or exchange Securities of any series during a period beginning at the opening
of business 15 days before the day of the mailing of a notice of redemption of
Securities of that series selected for redemption under Section 11.02 and ending
at the close of business on the day of such mailing, or (ii) to register the
transfer or exchange of any Security so selected for redemption in whole or in
part, except the unredeemed portion of any Security being redeemed in part.

         Notwithstanding any other provision of this Section 3.05, unless and
until it is exchanged in whole or in part for Securities in definitive
registered form, a Global Security representing all or a portion of the
Securities of a series may not be transferred except as a whole by the
Depositary for such series to a nominee of such Depositary or by a nominee of
such Depositary to such Depositary or another nominee of such Depositary or by
such Depositary or any such nominee to a successor Depositary for such series or
a nominee of such successor Depositary.

         If at any time the Depositary for the Securities of a series notifies
the Company that it is unwilling or unable to continue as Depositary for the
Securities of such series or if at any time the Depositary for the Securities of
a series shall no longer be registered or in good standing under the Securities
Exchange Act of 1934, as amended, or other applicable statute or regulation, the
Company shall appoint a successor Depositary with respect to the Securities of
such series. If a successor Depositary for the Securities of such series is not
appointed by the Company within 90 days after the Company receives such notice
or becomes aware of such condition, the Company shall execute, and the Trustee,
upon receipt of a Company Order for the authentication and delivery of
definitive Securities of such series, shall authenticate and deliver Securities
of such series in definitive form in an aggregate principal amount equal to the
principal amount of the Global Security or Securities representing such series
in exchange for such Global Security or Securities.

                                       18
<PAGE>

         The Company may at any time and in its sole discretion determine that
the Securities of any series issued in the form of one or more Global Securities
shall no longer be represented by a Global Security or Securities. In such event
the Company shall execute, and the Trustee, upon receipt of a Company Order for
the authentication and delivery of definitive Securities of such series, shall
authenticate and deliver, Securities of such series in definitive registered
form without coupons, in any authorized denominations, in an aggregate principal
amount equal to the principal amount of the Global Security or Securities
representing such series, in exchange for such Global Security or Securities.

         If (1) an Event of Default shall occur and be continuing and (2)
beneficial owners of interests representing a majority in aggregate principal
amount of the Securities of a series represented by a Global Security or
Securities shall advise the Trustee through the Depositary for such Global
Security or Securities in writing that the maintenance of a Depositary for such
series is no longer in such beneficial owners' best interests, the Company shall
execute, and the Trustee, upon receipt of a Company Order for the authentication
and delivery of definitive Securities of such series, shall authenticate and
deliver, Securities of such series in definitive registered form without
coupons, in any authorized denominations, in an aggregate principal amount equal
to the principal amount of the such Global Security or Securities, in exchange
for such Global Security or Securities.

         If specified by the Company pursuant to Section 3.01 with respect to a
series of Securities, the Depositary for such series of Securities may surrender
a Global Security for such series of Securities in exchange in whole or in part
for Securities of such series in definitive registered form on such terms as are
acceptable to the Company and such Depositary. Thereupon, the Company shall
execute, and the Trustee shall authenticate and deliver, without service charge,

               (i) to the Person specified by such Depositary a new Security or
          Securities of the same series, of any authorized denomination as
          requested by such Person, in an aggregate principal amount equal to
          and in exchange for such Person's beneficial interest in the Global
          Security; and

               (ii) to such Depositary a new Global Security in a denomination
          equal to the difference, if any, between the principal amount of the
          surrendered Global Security and the aggregate principal amount of
          Securities authenticated and delivered pursuant to Clause (i) above.

         Upon the exchange of a Global Security for Securities in definitive
registered form, in authorized denominations, such Global Security shall be
canceled by the Trustee. Securities in definitive registered form issued in
exchange for a Global Security pursuant to this Section 3.05 shall be registered
in such names and in such authorized denominations as the Depositary for such
Global Security, pursuant to instructions from its direct or indirect
participants or otherwise, shall instruct the Trustee. The Trustee shall not be
liable for any delay in delivery of such instructions and may conclusively rely
on, and shall be protected in relying on, such instructions. The Trustee shall,
at Company expense, deliver such Securities to or as directed by the Persons in
whose names such Securities are so registered.

                                       19
<PAGE>

         Section 3.06 Mutilated, Destroyed, Lost and Stolen Securities.

         If any mutilated Security is surrendered to the Trustee, together with
such other security or indemnity as may be reasonably required by the Trustee to
save it harmless, the Company shall execute and the Trustee shall authenticate
and deliver in exchange therefor a new Security of the same series and of like
tenor and principal amount and bearing a number not contemporaneously
outstanding.

         If there shall be delivered to the Company and the Trustee (i) evidence
to their satisfaction of the destruction, loss or theft of any Security and (ii)
such security or indemnity as may be required by them to save each of them and
any agent of either of them harmless, then, in the absence of notice to the
Company or the Trustee that such Security has been acquired by a bona fide
purchaser, the Company shall execute and upon its request the Trustee shall
authenticate and deliver, in lieu of any such destroyed, lost or stolen
Security, a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

         In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Company in its discretion may,
instead of issuing a new Security, pay such Security, subject to satisfaction of
the foregoing conditions. Upon the issuance of any new Security under this
Section, the Company may require the payment of a sum sufficient to cover any
tax or other governmental charge that may be imposed in relation thereto and any
other expenses (including the fees and expenses of the Trustee) connected
therewith.

         Every new Security of any series issued pursuant to this Section in
lieu of any destroyed, lost or stolen Security shall constitute an original
additional contractual obligation of the Company, whether or not the destroyed,
lost or stolen Security shall be at any time enforceable by anyone, and shall be
entitled to all the benefits of this Indenture equally and proportionately with
any and all other Securities of that series duly issued hereunder.

         The provisions of this Section are exclusive and shall preclude (to the
extent lawful) all other rights and remedies with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities.

         Section 3.07 Payment of Interest; Interest Rights Preserved.

         Except as otherwise provided as contemplated by Section 3.01 with
respect to any series of Securities, interest on any Security which is payable,
and is punctually paid or duly provided for, on any Interest Payment Date shall
be paid to the Person in whose name that Security (or one or more Predecessor
Securities) is registered at the close of business on the Regular Record Date
for such interest. The Company and the Trustee understand that interest on any
Global Security will be disbursed or credited by the Depositary to the Persons
having ownership thereof pursuant to a book entry or other system maintained by
the Depositary.

         Any interest on any Security of any series which is payable, but is not
punctually paid or duly provided for, on any Interest Payment Date (herein
called "Defaulted Interest") shall forthwith cease to be payable to the Holder
on the relevant Regular Record Date by virtue of


                                       20
<PAGE>

having been such Holder, and such Defaulted Interest may be paid by the Company,
at its election in each case, as provided in Clause (1) or Clause (2) below:

              (1) The Company may elect to make payment of any Defaulted
         Interest to the Persons in whose names the Securities of such series
         (or their respective Predecessor Securities) are registered at the
         close of business on a Special Record Date for the payment of such
         Defaulted Interest, which shall be fixed in the following manner. The
         Company shall notify the Trustee in writing of the amount of Defaulted
         Interest proposed to be paid on each Security of such series and the
         date of the proposed payment, and at the same time the Company shall
         deposit with the Trustee an amount of money equal to the aggregate
         amount proposed to be paid in respect of such Defaulted Interest or
         shall make arrangements satisfactory to the Trustee for such deposit
         prior to the date of the proposed payment, such money when deposited
         to be held in trust for the benefit of the Persons entitled to such
         Defaulted Interest as in this Clause provided. Thereupon the Trustee
         shall fix a Special Record Date for the payment of such Defaulted
         Interest which shall be not more than 15 days and not less than 10
         days prior to the date of the proposed payment and not less than 10
         days after the receipt by the Trustee of the notice of the proposed
         payment. The Trustee shall promptly notify the Company of such Special
         Record Date and, in the name and at the expense of the Company, shall
         cause notice of the proposed payment of such Defaulted Interest and
         the Special Record Date therefor to be mailed, first-class postage
         prepaid, to each Holder of Securities of such series at his address as
         it appears in the Security Register, not less than 10 days prior to
         such Special Record Date. Notice of the proposed payment of such
         Defaulted Interest and the Special Record Date therefor having been so
         mailed, such Defaulted Interest shall be paid to the Persons in whose
         names the Securities of such series (or their respective Predecessor
         Securities) are registered at the close of business on such Special
         Record Date and shall no longer be payable pursuant to the following
         Clause (2).

              (2) The Company may make payment of any Defaulted Interest on the
         Securities of any series in any other lawful manner not inconsistent
         with the requirements of any securities exchange on which such
         Securities may be listed, and upon such notice as may be required by
         such exchange, if, after notice given by the Company to the Trustee of
         the proposed payment pursuant to this Clause, such manner of payment
         shall be deemed practicable by the Trustee.

         Subject to the foregoing provisions of this Section, each Security
delivered under this Indenture upon registration of transfer of or in exchange
for or in lieu of any other Security shall carry the rights to interest accrued
and unpaid, and to accrue, which were carried by such other Security.

         Section 3.08 Persons Deemed Owners.

         The Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name such Security is registered as the owner of
such Security for the purpose of receiving payment of principal of (and premium,
if any) and (subject to Section 3.07) interest on such Security and for all
other purposes whatsoever, whether or not such Security be overdue,


                                       21
<PAGE>

and neither the Company, the Trustee nor any agent of the Company or the Trustee
shall be affected by notice to the contrary.

         None of the Company, the Trustee, any Paying Agent or the Security
Registrar will have any responsibility or liability for any aspect of the
records relating to or payments made on account of beneficial ownership
interests in a Global Security or for maintaining, supervising or reviewing any
records relating to such beneficial ownership interests.

         Section 3.09 Cancellation.

         Unless otherwise specified pursuant to Section 3.01(6) for Securities
of any series all Securities surrendered for payment, redemption, registration
of transfer or exchange or for credit against any mandatory sinking fund payment
shall, if surrendered to any Person other than the Trustee, be delivered to the
Trustee and shall be promptly canceled by it. The Company may at any time
deliver to the Trustee for cancellation any Securities previously authenticated
and delivered hereunder which the Company may have acquired in any manner
whatsoever, and all Securities so delivered shall be promptly canceled by the
Trustee, except that if a Global Security is so surrendered, the Company shall
execute and the Trustee shall authenticate and deliver to the Depositary for
such Global Security, without service charge, a new Global Security or
Securities in a denomination equal to and in exchange for the portion of the
Global Security so surrendered not to be paid, redeemed, repaid or registered
for transfer or exchange or for credit. No Securities shall be authenticated in
lieu of or in exchange for any Securities canceled as provided in this Section,
except as expressly permitted by this Indenture. All canceled Securities held by
the Trustee shall be disposed of in accordance with its customary procedures and
a certificate of disposition shall be delivered to the Company, unless, by a
Company Order, the Company shall direct the canceled Securities be returned to
it.

         Section 3.10 Computation of Interest.

         Except as otherwise specified as contemplated by Section 3.01 for
Securities of any series, interest on the Securities of each series shall be
computed on the basis of a 360-day year of twelve 30-day months.

                                  ARTICLE IV.

                           SATISFACTION AND DISCHARGE

         Section 4.01 Satisfaction and Discharge of Indenture.

         Upon Company Request, this Indenture shall cease to be of further
effect with respect to the Securities of a particular series, and the Trustee,
at the expense of the Company, shall execute proper instruments acknowledging
satisfaction and discharge of this Indenture as to such Securities, when:

               (1) either:

                    (A) all Securities of such series theretofore authenticated
               and delivered (other than (i) Securities which have been
               destroyed, lost or stolen and which

                                       22
<PAGE>

               have been replaced or paid as provided in Section 3.06 and (ii)
               Securities for whose payment money has theretofore been deposited
               in trust or segregated and held in trust by the Company and
               thereafter repaid to the Company or discharged from such trust,
               as provided in Section 10.03) have been delivered to the Trustee
               for cancellation; or

                    (B) all Securities of such series not theretofore delivered
               to the Trustee for cancellation

                         (i) have become due and payable, or

                         (ii) will become due and payable at their Stated
                    Maturity within one year, or

                         (iii) are to be called for redemption within one year,
                    under arrangements satisfactory to the Trustee for the
                    giving of notice of redemption by the Trustee in the name,
                    and at the expense, of the Company;

               and the Company, in the case of (i), (ii) or (iii) above, has
               irrevocably deposited or caused to be irrevocably deposited with
               the Trustee as trust funds in trust for such purpose sums
               sufficient to pay and discharge the entire indebtedness on such
               Securities not theretofore delivered to the Trustee for
               cancellation, for principal (and premium, if any) and interest to
               the date of such deposit (in the case of Securities which have
               become due and payable) or to the Stated Maturity or Redemption
               Date, as the case may be; and

               (2) the Company has paid or caused to be paid all other sums
          payable hereunder by the Company with respect to such Securities; and

               (3) the Company has delivered to the Trustee an Officers'
          Certificate and an Opinion of Counsel, each stating that all
          conditions precedent herein provided for relating to the satisfaction
          and discharge of this Indenture with respect to the Securities of such
          series have been complied with.

         Notwithstanding the satisfaction and discharge of this Indenture with
respect to the Securities of a particular series, the obligations of the Company
to the Trustee under Section 6.07, the obligations, if any, of the Trustee to
any Authenticating Agent under Section 6.14 and, if money shall have been
deposited with the Trustee pursuant to subclause (B) of clause (1) of this
Section, the obligations of the Trustee under Section 4.02 and the last
paragraph of Section 10.03, in each case with respect to such Securities, shall
survive.

         Notwithstanding the cessation, termination and discharge of all
obligations, covenants and agreements of the Company under this Indenture with
respect to any series of Securities, the obligations of the Company to the
Trustee under Section 6.07 and the obligations of the Trustee under Section 4.02
and the last paragraph of Section 10.03 shall survive with respect to such
series of Securities.

                                       23
<PAGE>

         Section 4.02 Application of Trust Money.

         Subject to the provisions of the last paragraph of Section 10.03, all
money deposited with the Trustee pursuant to Section 4.01 shall be held in trust
and applied by it, in accordance with the provisions of the Securities and this
Indenture, to the payment, either directly or through any Paying Agent
(including the Company acting as its own Paying Agent), as the Trustee may
determine, to the Persons entitled thereto, of the principal (and premium, if
any) and interest for whose payment such money has been deposited with the
Trustee.

                                   ARTICLE V.

                           EVENTS OF DEFAULT; REMEDIES

         Section 5.01 Events of Default.

         Unless otherwise provided in a supplemental indenture hereto, "Event of
Default," wherever used herein with respect to Securities of any series, means
any one of the following events (whatever the reason for such Event of Default
and whether it shall be voluntary or involuntary or be effected by operation of
law or pursuant to any judgment, decree or order of any court or any order, rule
or regulation of any administrative or governmental body):

               (1) default in the payment of any interest upon any Security of
          that series when it becomes due and payable, and continuance of such
          default for a period of 30 days; or

               (2) default in the payment of the principal of (and premium, if
          any, on) any Security of that series at its Maturity; or

               (3) default in the deposit of any mandatory sinking fund payment,
          when and as due by the terms of the Securities of that series, and
          continuance of such default for a period of 30 days; or

               (4) default in the performance of any covenant or warranty of the
          Company in this Indenture (other than a covenant or warranty a default
          in whose performance or whose breach is elsewhere in this Section 5.01
          specifically dealt with or which has expressly been included in this
          Indenture solely for the benefit of a series of Securities other than
          that series), and continuance of such default for a period of 60 days
          after there has been given, by registered or certified mail, to the
          Company by the Trustee or to the Company and the Trustee by the
          Holders of at least 25% in aggregate principal amount of the
          Outstanding Securities of that series, a written notice specifying
          such default or breach and requiring it to be remedied and stating
          that such notice is a "Notice of Default" hereunder; or

               (5) default (i) in the payment of any principal of or interest on
          any Debt of the Company (other than Securities of that series),
          aggregating more than $60,000,000 in principal amount, when due after
          giving effect to any applicable grace period or (ii) in the
          performance of any other term or provision of any Debt of the Company
          (other than Securities of that series) in excess of $60,000,000 in
          principal amount that results in such


                                       24
<PAGE>

          Debt becoming or being declared due and payable prior to the date on
          which it would otherwise become due and payable, and such acceleration
          shall not have been rescinded or annulled, or such Debt shall not have
          been discharged, within a period of 30 days after there has been
          given, by registered or certified mail, to the Company by the Trustee
          or to the Company and the Trustee by the Holders of at least 25% in
          aggregate principal amount of the Outstanding Securities of that
          series, a written notice specifying such default or defaults and
          stating that such notice is a "Notice of Default" hereunder; or

               (6) the entry against the Company of one or more judgments,
          decrees or orders by a court having jurisdiction in the premises from
          which no appeal may be or is taken for the payment of money, either
          individually or in the aggregate, in excess of $60,000,000, and the
          continuance of such judgment, decree or order unsatisfied and in
          effect for any period of 45 consecutive days after the amount thereof
          is due without a stay of execution and there has been given, by
          registered or certified mail, to the Company by the Trustee or to the
          Company and the Trustee by the Holders of at least 25% in aggregate
          principal amount of the Outstanding Securities of that series, a
          written notice specifying such entry and continuance of such judgment,
          decree or order and stating that such notice is a "Notice of Default"
          hereunder; or

               (7) the entry of a decree or order for relief in respect of the
          Company by a court having jurisdiction in the premises in an
          involuntary case under the federal bankruptcy laws, as now or
          hereafter constituted, or any other applicable federal or state
          bankruptcy, insolvency or other similar law, or a decree or order
          adjudging the Company a bankrupt or insolvent, or approving as
          properly filed a petition seeking reorganization, arrangement,
          adjustment or composition of or in respect of the Company under any
          applicable federal or state law, or appointing a receiver, liquidator,
          assignee, custodian, trustee, sequestrator (or other similar official)
          of the Company or of any substantial part of its property, or ordering
          the winding up or liquidation of its affairs, and the continuance of
          any such decree or order unstayed and in effect for a period of 60
          consecutive days; or

               (8) the commencement by the Company of a voluntary case under the
          federal bankruptcy laws, as now or hereafter constituted, or any other
          applicable federal or state bankruptcy, insolvency or other similar
          law, or the consent by it to the entry of an order for relief in an
          involuntary case under any such law or to the appointment of a
          receiver, liquidator, assignee, custodian, trustee, sequestrator (or
          other similar official) of the Company or of any substantial part of
          its property, or the making by it of an assignment for the benefit of
          its creditors, or the admission by it in writing of its inability to
          pay its debts generally as they become due, or the taking of corporate
          action by the Company in furtherance of any such action.

         Upon receipt by the Trustee of any proposed Notice of Default from any
Holder with respect to Securities of a series all or part of which is
represented by a Global Security, a record date shall be established for
determining Holders of Outstanding Securities of such series entitled to join in
such proposed Notice of Default, which record date shall be at the close of
business on the day the Trustee receives such proposed Notice of Default. The
Holders on such record date, or their duly designated proxies, and only such
Persons, shall be entitled to join in such proposed


                                       25
<PAGE>

Notice of Default, whether or not such Holders remain Holders after such record
date; provided, that unless Holders of at least 25% in principal amount of the
Outstanding Securities of such series, or their proxies, shall have joined in
such proposed Notice of Default prior to the day which is 90 days after such
record date, such proposed Notice of Default shall automatically and without
further action by any Holder be canceled and of no further effect. Nothing in
this paragraph shall prevent a Holder, or a proxy of a Holder, from giving (i)
after expiration of such 90-day period, a new proposed Notice of Default
identical to a proposed Notice of Default which has been canceled pursuant to
the proviso to the preceding sentence, or (ii) during any such 90-day period, an
additional proposed Notice of Default with respect to any new or different fact
or circumstance permitting the giving of a proposed Notice of Default with
respect to Securities of such series, in either of which events a new record
date shall be established pursuant to the provisions of this Section 5.01. Any
such proposed Notice of Default shall be considered a Notice of Default
hereunder at such time, if any, that Holders of at least 25% in principal amount
of the Outstanding Securities shall have joined in such proposed Notice of
Default by giving timely notice to the Trustee hereunder.

         Section 5.02 Acceleration of Maturity; Rescission and Annulment.

         If an Event of Default with respect to Securities of any series (other
than an Event of Default specified in Section 5.01(6) or (7)) at the time
Outstanding occurs and is continuing, then in every such case, the Trustee or
the Holders of not less than 25% in principal amount of the Outstanding
Securities of that series may declare the principal amount (or, if any of the
Securities of that series are Original Issue Discount Securities, such portion
of the principal amount of such Securities as may be specified in the terms
thereof) of all of the Securities of that series to be due and payable
immediately, by a notice in writing to the Company (and to the Trustee if given
by Holders), and upon any such declaration such principal amount (or specified
amount) shall become immediately due and payable. Upon payment of said amounts,
all obligations of the Company in respect of payment of principal of the
Securities of such series shall terminate. Notwithstanding the foregoing, if an
Event of Default specified in Section 5.01(6) or (7) hereof occurs with respect
to the Company, all Outstanding Securities shall become immediately due and
payable without further action or notice.

         At any time after such a declaration of acceleration with respect to
Securities of any series has been made and before a judgment or decree for
payment of the money due has been obtained by the Trustee as hereinafter in this
Article provided, the Holders of a majority in principal amount of the
Outstanding Securities of that series, by written notice to the Company and the
Trustee, may rescind and annul such declaration and its consequences if:

               (1) the Company has paid or deposited with the Trustee a sum
          sufficient to pay

                    (A) all overdue interest on all Securities of that series,

                    (B) the principal of (and premium, if any, on) any
               Securities of that series which have become due otherwise than by
               such declaration of acceleration and any interest thereon at the
               rate or rates prescribed therefor in such Securities,

                                       26
<PAGE>

                    (C) to the extent that payment of such interest is lawful,
               interest upon overdue interest at the rate or rates prescribed
               therefor in such Securities, and

                    (D) all sums paid or advanced by the Trustee hereunder and
               the reasonable compensation, expenses, disbursements and advances
               of the Trustee, its agents and counsel;

          and

               (2) all Events of Default with respect to Securities of that
          series, other than the non-payment of the principal of Securities of
          that series which have become due solely by such declaration of
          acceleration, have been cured or waived as provided in Section 5.13.

         No such rescission shall affect any subsequent default or impair any
right consequent thereon.

         Upon receipt by the Trustee of written notice declaring such an
acceleration, or rescission and annulment thereof, with respect to Securities of
a series all or part of which is represented by a Global Security, a record date
shall be established for determining Holders of Outstanding Securities of such
series entitled to join in such notice, which record date shall be at the close
of business on the day the Trustee receives such notice. The Holders on such
record date, or their duly designated proxies, and only such Persons, shall be
entitled to join in such notice, whether or not such Holders remain Holders
after such record date; provided, that unless such declaration of acceleration,
or rescission and annulment, as the case may be, shall have become effective by
virtue of the requisite percentage having joined in such notice prior to the day
which is 90 days after such record date, such notice of declaration of
acceleration, or rescission and annulment, as the case may be, shall
automatically and without further action by any Holder be canceled and of no
further effect. Nothing in this paragraph shall prevent a Holder, or a proxy of
a Holder, from giving (i) after expiration of such 90-day period, a new written
notice of declaration of acceleration, or rescission and annulment, as the case
may be, that is identical to a written notice which has been canceled pursuant
to the proviso to the preceding sentence, or (ii) during any such 90-day period,
an additional written notice of declaration of acceleration with respect to
Securities of such series, or an additional written notice of rescission and
annulment of any declaration of acceleration with respect to any other Event of
Default with respect to Securities of such series, in either of which events a
new record date shall be established pursuant to the provisions of this Section
5.02.

         Section 5.03 Collection of Indebtedness and Suits for Enforcement by
Trustee.

         The Company covenants that if:

               (1) default is made in the payment of any interest upon any
          Security when it becomes due and payable and such default continues
          for a period of 30 days, or

               (2) default is made in the payment of the principal of (or
          premium, if any, on) any Security at its Maturity, or

                                       27
<PAGE>

               (3) default is made in the making or satisfaction of any
          mandatory sinking fund payment when it becomes due pursuant to the
          terms of the Securities of any series,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the
Holders of such Securities, the whole amount then due and payable on such
Securities for principal (and premium, if any) and interest and, to the extent
that payment of such interest shall be legally enforceable, interest on any
overdue principal (and premium, if any) and on any overdue interest, at the rate
or rates prescribed therefor in such Securities and, in addition thereto, such
further amount as shall be sufficient to cover the costs and expenses of
collection, including the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel.

         If the Company fails to pay such amounts forthwith upon such demand,
the Trustee, in its own name and as trustee of an express trust, may, but shall
not be obligated to, institute a judicial proceeding for the collection of the
sums so due and unpaid, may prosecute such proceeding to judgment or final
decree, and may enforce the same against the Company or any other obligor upon
such Securities and collect the moneys adjudged or decreed to be payable in the
manner provided by law out of the property of the Company or any other obligor
upon such Securities, wherever situated.

         If an Event of Default with respect to Securities of any series occurs
and is continuing, the Trustee may in its discretion proceed to protect and
enforce its rights and the rights of the Holders of Securities of such series by
such appropriate judicial proceedings as the Trustee shall deem most effectual
to protect and enforce any such rights, whether for the specific enforcement of
any covenant or agreement in this Indenture or in aid of the exercise of any
power granted herein, or to enforce any other proper remedy.

         Section 5.04 Trustee May File Proofs of Claim.

         In case of any judicial proceeding relative to the Company (or any
other obligor upon the Securities), its property or its creditors, the Trustee
shall be entitled and empowered, by intervention in such proceeding or
otherwise, to take any and all actions authorized under the Trust Indenture Act
in order to have claims of the Holders and the Trustee allowed in any such
proceeding. In particular, the Trustee shall be authorized to file and prove a
claim for the whole amount of principal, premium and interest owing and unpaid
in respect of the Securities and to file such other papers or documents as may
be necessary or advisable in order to have claims of the Trustee (including any
claim for the reasonable compensation, expenses, disbursements and advances of
the Trustee, its agents and counsel) and of the Holders allowed in such judicial
proceeding, and to collect and receive any moneys or other property payable or
deliverable on any such claims and to distribute the same; and any custodian,
receiver, assignee, trustee, liquidator, sequestrator or other similar official
in any such judicial proceeding is hereby authorized by each Holder to make such
payments to the Trustee and, in the event that the Trustee shall consent to the
making of such payments directly to the Holders, to pay to the Trustee any
amount due it for the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel, and any other amounts due the
Trustee under Section 6.07.

                                       28
<PAGE>

         No provision of this Indenture shall be deemed to authorize the Trustee
to authorize or consent to or accept or adopt on behalf of any Holder any plan
of reorganization, arrangement, adjustment or composition affecting the
Securities or the rights of any Holder thereof or to authorize the Trustee to
vote in respect of the claim of any Holder in any such proceeding.

         Section 5.05 Trustee May Enforce Claims Without Possession of
Securities.

         All rights of action and claims under this Indenture or the Securities
may be prosecuted and enforced by the Trustee without the possession of any of
the Securities or the production thereof in any proceeding relating thereto, and
any such proceeding instituted by the Trustee shall be brought in its own name
as trustee of an express trust, and any recovery of judgment shall, after
provision for the payment of the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel, be for the
ratable benefit of the Holders of the Securities in respect of which such
judgment has been recovered.

         Section 5.06 Application of Money Collected.

         Any money collected by the Trustee pursuant to this Article with
respect to the Securities of any series shall be applied in the following order,
at the date or dates fixed by the Trustee and, in case of the distribution of
such money on account of principal (or premium, if any) or interest, upon
presentation of the Securities of any series and the notation thereon of the
payment if only partially paid and upon surrender thereof if fully paid:

                  FIRST: To the payment of all amounts due the Trustee under
         Section 6.07;

                  SECOND: To the payment of the amounts then due and unpaid for
         principal of (and premium, if any) and interest on the Securities of
         such series in respect of which or for the benefit of which such money
         has been collected, ratably, without preference or priority of any
         kind, according to the amounts due and payable on such Securities for
         principal (and premium, if any) and interest, respectively; and

                  THIRD: The balance, if any, to the Company or to whomsoever
         may be lawfully entitled to receive the same or as a court of
         competent jurisdiction may direct.

         Section 5.07 Limitation on Suits.

         No Holder of any Security of any series shall have any right to
institute any proceeding, judicial or otherwise, with respect to this Indenture,
or for the appointment of a receiver or trustee, or for any other remedy
hereunder, unless:

               (1) such Holder has previously given written notice to the
          Trustee of a continuing Event of Default with respect to the
          Securities of that series;

               (2) the Holders of not less than 25% in principal amount of the
          Outstanding Securities of that series shall have made written request
          to the Trustee to institute proceedings in respect of such Event of
          Default in its own name as Trustee hereunder;

                                       29
<PAGE>

               (3) such Holder or Holders have offered to the Trustee reasonable
          security or indemnity against the costs, expenses and liabilities to
          be incurred in compliance with such request;

               (4) the Trustee for 60 days after its receipt of such notice,
          request and offer of indemnity has failed to institute any such
          proceeding; and

               (5) no direction inconsistent with such written request has been
          given to the Trustee during such 60-day period by the Holders of a
          majority in principal amount of the Outstanding Securities of that
          series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or of the Holders of Outstanding Securities of any other series,
or to obtain or to seek to obtain priority or preference over any other of such
Holders or to enforce any right under this Indenture, except in the manner
herein provided and for the equal and ratable benefit of all of such Holders.

         Section 5.08 Unconditional Right of Holders to Receive Principal,
Premium and Interest.

         Notwithstanding any other provision in this Indenture, the Holder of
any Security shall have the right, which is absolute and unconditional, to
receive payment of the principal of (and premium, if any) and (subject to
Section 3.07) interest on such Security on the Stated Maturity or Maturities
expressed in such Security (or, in the case of redemption or repayment at the
option of the Holder, on the Redemption Date or the Repayment Date, as the case
may be) and to institute suit for the enforcement of any such payment, and such
rights shall not be impaired without the consent of such Holder.

         Section 5.09 Restoration of Rights and Remedies.

         If the Trustee or any Holder has instituted any proceeding to enforce
any right or remedy under this Indenture and such proceeding has been
discontinued or abandoned for any reason, or has been determined adversely to
the Trustee or to such Holder, then and in every such case, subject to any
determination in such proceeding, the Company, the Trustee and the Holders shall
be restored severally and respectively to their former positions hereunder and
thereafter all rights and remedies of the Trustee and the Holders shall continue
as though no such proceeding had been instituted.

         Section 5.10 Rights and Remedies Cumulative.

         Except as otherwise provided with respect to the replacement or payment
of mutilated, destroyed, lost or stolen Securities in the last paragraph of
Section 3.06, no right or remedy herein conferred upon or reserved to the
Trustee or to the Holders is intended to be exclusive of any other right or
remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or
now or hereafter existing at law or in equity or otherwise. The assertion or
employment of any right or remedy


                                       30
<PAGE>

hereunder, or otherwise, shall not prevent the concurrent assertion or
employment of any other appropriate right or remedy.

         Section 5.11 Delay or Omission Not Waiver.

         No delay or omission of the Trustee or of any Holder of any Securities
to exercise any right or remedy accruing upon any Event of Default shall impair
any such right or remedy or constitute a waiver of any such Event of Default or
an acquiescence therein. Every right and remedy given by this Article or by law
to the Trustee or to the Holders may be exercised from time to time, and as
often as may be deemed expedient, by the Trustee or by the Holders, as the case
may be.

         Section 5.12 Control by Holders.

         The Holders of at least a majority in principal amount of the
Outstanding Securities of any series shall have the right to direct the time,
method and place of conducting any proceeding for any remedy available to the
Trustee, or exercising any trust or power conferred on the Trustee, with respect
to the Securities of such series, provided that

               (1) such direction shall not be in conflict with any rule of law
          or with this Indenture, expose the Trustee to personal liability or be
          unduly prejudicial to Holders not joining therein, and

               (2) the Trustee may take any other action deemed proper by the
          Trustee which is not inconsistent with such direction.

         Upon receipt by the Trustee of any such direction with respect to
Securities of a series all or part of which is represented by a Global Security,
a record date shall be established for determining Holders of Outstanding
Securities of such series entitled to join in such direction, which record date
shall be determined in accordance with Section 1.04(e). The Holders on such
record date, or their duly designated proxies, and only such Persons, shall be
entitled to join in such direction, whether or not such Holders remain Holders
after such record date; provided, that unless Holders of at least a majority in
principal amount of the outstanding Securities of such series, or their proxies,
shall have been joined in such direction prior to the day which is 90 days after
such record date, such direction shall automatically and without further action
by any Holder be canceled and of no further effect. Nothing in this paragraph
shall prevent a Holder, or a proxy of a Holder, from giving (i) after expiration
of such 90-day period, a new direction identical to a direction which has been
canceled pursuant to the provisions of the preceding sentence or (ii) during any
such 90-day period, a new direction contrary to or different from such
direction, in either of which events a new record date shall be established
pursuant to the provisions of this Section 5.12.

         Section 5.13 Waiver of Defaults.

         By Act delivered to the Company and the Trustee, the Holders of not
less than a majority in principal amount of the Outstanding Securities of any
affected series may on behalf of the Holders of all the Securities of such
series waive any existing Event of Default hereunder with respect to such series
and its consequences (including an acceleration and its consequences,


                                       31
<PAGE>

including any related payment default that resulted from such acceleration),
except an Event of Default

               (1) in the payment of the principal of (or premium, if any) or
          interest on any Security of such series or in the payment of any
          mandatory sinking fund installment with respect to the Securities of
          such series, or

               (2) in respect of a covenant or provision hereof which under
          Article IX cannot be modified or amended without the consent of the
          Holder of each Outstanding Security of such series affected thereby.

         The Company may, but shall not be obligated to, fix a record date for
the purpose of determining the Persons entitled to waive any past default
hereunder. If a record date is fixed, the Holders on such record date, or their
duly designated proxies, and only such Persons, shall be entitled to waive any
default hereunder, whether or not such Holders remain Holders after such record
date; provided, that unless such majority in principal amount shall have been
obtained prior to the date which is 90 days after such record date, any such
waiver previously given shall automatically and without further action by any
Holder be canceled and of no further effect.

         Upon any such waiver, such default shall cease to exist, and any Event
of Default arising therefrom shall be deemed to have been cured for every
purpose of this Indenture; but no such waiver shall extend to any subsequent or
other default or impair any right consequent thereon.

         Section 5.14 Undertaking for Costs.

         In any suit for the enforcement of any right or remedy under this
Indenture, or in any suit against the Trustee for any action taken, suffered or
omitted by it as Trustee, a court may require any party litigant in such suit to
file an undertaking to pay the costs of such suit, and may assess costs against
any such party litigant, in the manner and to the extent provided in the Trust
Indenture Act; provided that neither this Section nor the Trust Indenture Act
shall be deemed to authorize any court to require such an undertaking or to make
such an assessment in any suit instituted by the Trustee, by any Holder, or
group of Holders, holding in the aggregate more than 10% in principal amount of
the Outstanding Securities of any series, or by any Holder for the enforcement
of the payment of the principal of (or premium, if any) or interest on any
Security on or after the Stated Maturity expressed in such Security (or, in the
case of redemption or repayment at the option of the Holder, on or after the
Redemption Date or Repayment Date, as the case may be).

         Section 5.15 Waiver of Stay or Extension Laws.

         The Company covenants (to the extent that it may lawfully do so) that
it will not at any time insist upon, or plead, or in any manner whatsoever claim
or take the benefit or advantage of, any stay or extension law wherever enacted,
now or at any time hereafter in force, which may affect the covenants or the
performance of this Indenture; and the Company (to the extent that it may
lawfully do so) hereby expressly waives all benefit or advantage of any such law
and covenants that it will not hinder, delay or impede the execution of any
power herein granted to the Trustee, but will suffer and permit the execution of
every such power as though no such law had been enacted.

                                       32
<PAGE>

                                  ARTICLE VI.

                                   THE TRUSTEE

         Section 6.01 Certain Duties and Responsibilities.

         (a) Except during the continuance of an Event of Default:

               (1) the Trustee undertakes to perform such duties and only such
          duties as are specifically set forth in this Indenture, and no implied
          covenants or obligations shall be read into this Indenture against the
          Trustee; and

               (2) in the absence of bad faith on its part, the Trustee may
          conclusively rely, as to the truth of the statements and the
          correctness of the opinions expressed therein, upon certificates or
          opinions furnished to the Trustee and conforming to the requirements
          of this Indenture; but in the case of any such certificates or
          opinions which by any provision of this Indenture are specifically
          required to be furnished to the Trustee, the Trustee shall be under a
          duty to examine the same to determine whether or not they conform to
          the requirements of this Indenture.

         (b) In case an Event of Default has occurred and is continuing, the
Trustee shall exercise such of the rights and powers vested in it by this
Indenture, and use the same degree of care and skill in their exercise, as a
prudent man would exercise or use under the circumstances in the conduct of his
own affairs.

         (c) No provision of this Indenture shall be construed to relieve the
Trustee from liability for its own negligent action, its own negligent failure
to act, or its own willful misconduct, except that:

               (1) this Subsection shall not be construed to limit the effect of
          Subsection (a) of this Section;

               (2) the Trustee shall not be liable for any error of judgment
          made in good faith by a Responsible Officer, unless it shall be proved
          that the Trustee was negligent in ascertaining the pertinent facts;

               (3) the Trustee shall not be liable with respect to any action
          taken or omitted to be taken by it in good faith in accordance with
          the direction of the Holders of a majority in principal amount of the
          Outstanding Securities of any series relating to the time, method and
          place of conducting any proceeding for any remedy available to the
          Trustee, or exercising any trust or power conferred upon the Trustee,
          under this Indenture; and

               (4) no provision of this Indenture shall require the Trustee to
          expend or risk its own funds or otherwise incur any financial
          liability in the performance of any of its duties hereunder, or in the
          exercise of any of its rights or powers, if it shall have reasonable
          grounds for believing that repayment of such funds or adequate
          indemnity against such risk or liability is not reasonably assured to
          it.

                                       33
<PAGE>

         (d) Whether or not therein expressly so provided, every provision of
this Indenture relating to the conduct or affecting the liability of or
affording protection to the Trustee shall be subject to the provisions of this
Section.

         Section 6.02 Notice of Defaults.

         Within 90 days after the occurrence of any default hereunder with
respect to Securities of any series, the Trustee shall transmit by mail to all
Holders of Securities of such series, as their names and addresses appear in the
Security Register, notice of such default hereunder known to the Trustee, unless
such default shall have been cured or waived; provided, however, that, except in
the case of a default in the payment of the principal, premium or interest on
any Security of such series or in the payment of any mandatory sinking fund
installment with respect to the Securities of such series, the Trustee shall be
protected in withholding such notice if and so long as the board of directors,
the executive committee of the board of directors and/or Responsible Officers of
the Trustee in good faith determine that the withholding of such notice is in
the interests of the Holders of the Securities of such series; and provided,
further, that in the case of any default of the character specified in Section
5.01(4) with respect to the Securities of such series no such notice to Holders
shall be given until at least 60 days after the occurrence thereof. For the
purpose of this Section, the term "default" means any event which is, or after
notice or lapse of time or both would become, an Event of Default.

         Section 6.03 Certain Rights of Trustee.

         Subject to the provisions of Section 6.01:

         (a) the Trustee may rely and shall be protected in acting or refraining
from acting upon any resolution, certificate, statement, instrument, opinion,
report, notice, request, direction, consent, order, bond, debenture, note, other
evidence of indebtedness or other paper or document believed by it to be genuine
and to have been signed or presented by the proper party or parties;

         (b) any request or direction of the Company mentioned herein shall be
sufficiently evidenced by a Company Request or Company Order and any resolution
of the Board of Directors may be sufficiently evidenced by a Board Resolution;

         (c) whenever in the administration of this Indenture the Trustee shall
deem it desirable that a matter be proved or established prior to taking,
suffering or omitting any action hereunder, the Trustee (unless other evidence
be herein specifically prescribed) may, in the absence of bad faith on its part,
rely upon an Officers' Certificate;

         (d) the Trustee may consult with counsel and the written advice of such
counsel or any Opinion of Counsel shall be full and complete authorization and
protection in respect of any action taken, suffered or omitted by it hereunder
in good faith and in reliance thereon;

         (e) the Trustee shall be under no obligation to exercise any of the
rights or powers vested in it by this Indenture at the request or direction of
any of the Holders pursuant to this Indenture, unless such Holders shall have
offered to the Trustee reasonable security or indemnity against the costs,
expenses and liabilities which might be incurred by it in compliance with such
request or direction;

                                       34
<PAGE>

         (f) the Trustee shall not be bound to make any investigation into the
facts or matters stated in any resolution, certificate, statement, instrument,
opinion, report, notice, request, direction, consent, order, bond, debenture,
note, other evidence of indebtedness or other paper or document, but the
Trustee, in its discretion, may make such further inquiry or investigation into
such facts or matters as it may see fit, and, if the Trustee shall determine to
make such further inquiry or investigation, it shall be entitled to examine the
books, records and premises of the Company, personally or by agent or attorney;

         (g) the Trustee may execute any of the trusts or powers hereunder or
perform any duties hereunder either directly or by or through agents or
attorneys and the Trustee shall not be responsible for any misconduct or
negligence on the part of any agent or attorney appointed with due care by it
hereunder; and

         (h) the Trustee shall not be required to take notice or be deemed to
have notice of any default hereunder (except failure by the Company to pay
principal of (or premium, if any) or interest on any series of Securities so
long as the Trustee is also acting as Paying Agent for such series of
Securities) unless the Trustee shall be specifically notified in writing of such
default by the Company or by the Holders of at least a 10% in aggregate
principal amount of all Outstanding Securities, and all such notices or other
instruments required by this Indenture to be delivered to the Trustee must, in
order to be effective, be delivered at the principal Corporate Trust Office of
the Trustee, and in the absence of such notice the Trustee may conclusively
assume there is no default except as aforesaid.

         Section 6.04 Not Responsible for Recitals or Issuance of Securities.

         The recitals contained herein and in the Securities, except the
Trustee's certificates of authentication, shall be taken as the statements of
the Company, and the Trustee or any Authenticating Agent assumes no
responsibility for their correctness. The Trustee makes no representations as to
the validity or sufficiency of this Indenture or of the Securities. The Trustee
or any Authenticating Agent shall not be accountable for the use or application
by the Company of Securities or the proceeds thereof. The Trustee shall not be
deemed to have knowledge of the identity of any Subsidiary unless either (A) a
Responsible Officer of the Trustee shall have actual knowledge thereof or (B)
the Trustee shall have received written notice thereof from the Company or any
Holder.

         Section 6.05 May Hold Securities.

         The Trustee, any Authenticating Agent, any Paying Agent, any Security
Registrar or any other agent of the Company, in its individual or any other
capacity, may become the owner or pledgee of Securities and, subject to Sections
6.08 and 6.13, may otherwise deal with the Company with the same rights it would
have if it were not Trustee, Authenticating Agent, Paying Agent, Security
Registrar or such other agent.

         Section 6.06 Money Held in Trust.

         Money held by the Trustee in trust hereunder need not be segregated
from other funds except to the extent required by law. The Trustee shall be
under no liability for interest on any money received by it hereunder except as
otherwise agreed with the Company.

                                       35
<PAGE>

         Section 6.07 Compensation and Reimbursement.

         The Company agrees:

              (1) to pay to the Trustee from time to time reasonable
         compensation for the Trustee's services rendered hereunder (which
         compensation shall not be limited by any provision of law in regard to
         the compensation of a trustee of an express trust);

              (2) except as otherwise expressly provided herein, to reimburse
         the Trustee upon its request for all reasonable expenses,
         disbursements and advances incurred or made by the Trustee in
         accordance with any provision of this Indenture (including the
         reasonable compensation and the expenses and disbursements of its
         agents and counsel), except any such expense, disbursement or advance
         as may be attributable to the Trustee's negligence or bad faith; and

              (3) to indemnify the Trustee for, and to hold it harmless
         against, any loss, liability or expense incurred without negligence or
         bad faith on the Trustee's part, arising out of or in connection with
         the acceptance or administration of the trust or trusts hereunder,
         including the Trustee's costs and expenses of defending itself against
         any claim or liability in connection with the exercise or performance
         of any of the Trustee's powers or duties hereunder.

         As security for the performance of the obligations of the Company under
this Section, the Trustee shall have a lien prior to the Securities upon all
property and funds held or collected by the Trustee as such, except funds held
in trust for the benefit of the Holders of particular Securities.

         Section 6.08 Disqualification; Conflicting Interests.

         If the Trustee has or shall acquire a conflicting interest within the
meaning of Section 3.10 of the Trust Indenture Act, the Trustee shall either
eliminate such interest or resign, to the extent and in the manner provided by,
and subject to the provisions of, the Trust Indenture Act and this Indenture. To
the extent permitted by the Trust Indenture Act, the Trustee shall not be deemed
to have a conflicting interest with respect to the Securities of any series by
virtue of being Trustee with respect to the Securities of any particular series
of Securities except as may be otherwise provided by the terms of the Securities
of that series.

         Section 6.09 Corporate Trustee Required; Eligibility.

         There shall at all times be a Trustee hereunder which shall be a Person
that is eligible pursuant to the Trust Indenture Act to act as such and has a
combined capital and surplus of at least $50,000,000. If such Person publishes
reports of condition at least annually, pursuant to law or to the requirements
of Federal, State, Territorial or District of Columbia supervising or examining
authority, then for the purposes of this Section, the combined capital and
surplus of such Person shall be deemed to be its combined capital and surplus as
set forth in its most recent report of condition so published. If at any time
the Trustee shall cease to be eligible in accordance with the provisions of this
Section, it shall resign immediately in the manner and with the effect
hereinafter specified in this Article.

                                       36
<PAGE>

         Section 6.10 Resignation and Removal; Appointment of Successor.

         (a) No resignation or removal of the Trustee and no appointment of a
successor Trustee pursuant to this Article shall become effective until the
acceptance of appointment by the successor Trustee in accordance with the
applicable requirements of Section 6.11.

         (b) The Trustee may resign at any time with respect to the Securities
of one or more series by giving written notice thereof to the Company. If the
instrument of acceptance by a successor Trustee required by Section 6.11 shall
not have been delivered to the Trustee within 30 days after the giving of such
notice of resignation, the resigning Trustee may petition any court of competent
jurisdiction for the appointment of a successor Trustee with respect to the
Securities of such series.

         (c) The Trustee may be removed at any time with respect to the
Securities of any series by Act of the Holders of a majority in principal amount
of the Outstanding Securities of such series, delivered to the Trustee and to
the Company.

         (d) If at any time:

               (1) the Trustee shall fail to comply with Section 6.08 after
          written request therefor by the Company or by any Holder who has been
          a bona fide Holder of a Security for at least six months, or

               (2) the Trustee shall cease to be eligible under Section 6.09 and
          shall fail to resign after written request therefor by the Company or
          by any such Holder, or

               (3) the Trustee shall become incapable of acting or shall be
          adjudged a bankrupt or insolvent or a receiver of the Trustee or of
          its property shall be appointed or any public officer shall take
          charge or control of the Trustee or of its property or affairs for the
          purpose of rehabilitation, conservation or liquidation,

then, in any such case, (i) the Company may remove the Trustee with respect to
any or all Securities, or (ii) subject to Section 5.14, any Holder who has been
a bona fide Holder of a Security for at least six months may, on behalf of
himself and all others similarly situated, petition any court of competent
jurisdiction for the removal of the Trustee with respect to any or all
Securities and the appointment of a successor Trustee or Trustees with respect
to such series.

         (e) If the Trustee shall resign, be removed or become incapable of
acting, or if a vacancy shall occur in the office of Trustee for any cause, with
respect to the Securities of one or more series, the Company shall promptly
appoint a successor Trustee or Trustees with respect to the Securities of that
or those series (it being understood that any such successor Trustee may be
appointed with respect to the Securities of one or more or all of such series
and that at any time there shall be only one Trustee with respect to the
Securities of any particular series) and shall comply with the applicable
requirements of Section 6.11. If, within one year after such resignation,
removal or incapability, or the occurrence of such vacancy, a successor Trustee
with respect to the Securities of that or those series shall be appointed by Act
of the Holders of a majority in principal amount of the Outstanding Securities
of such series delivered to the Company and the retiring Trustee, the successor
Trustee so appointed shall, forthwith upon its


                                       37
<PAGE>

acceptance of such appointment in accordance with the applicable requirements of
Section 6.11, become the successor Trustee with respect to the Securities of
such series and to that extent supersede the successor Trustee appointed by the
Company. If no successor Trustee with respect to the Securities of any series
shall have been so appointed by the Company or the Holders and accepted
appointment in the manner required by Section 6.11, any Holder who has been a
bona fide Holder of a Security of such series for at least six months may, on
behalf of himself and all others similarly situated, petition any court of
competent jurisdiction for the appointment of a successor Trustee with respect
to the Securities of such series.

         (f) The Company shall give notice of each resignation and each removal
of the Trustee with respect to the Securities of any series and each appointment
of a successor Trustee with respect to the Securities of any series to all
Holders of Securities of such series in the manner provided in Section 1.06.
Each notice of appointment shall include the name of the successor Trustee with
respect to the Securities of such series and the address of its Corporate Trust
Office.

         Section 6.11 Acceptance of Appointment by Successor.

         (a) In case of the appointment hereunder of a successor Trustee with
respect to all Securities, every such successor Trustee so appointed shall
execute, acknowledge and deliver to the Company and to the retiring Trustee an
instrument accepting such appointment, and thereupon the resignation or removal
of the retiring Trustee shall become effective and such successor Trustee,
without any further act, deed or conveyance, shall become vested with all the
rights, powers, trusts and duties of the retiring Trustee; but, on the request
of the Company or the successor Trustee, such retiring Trustee shall, upon
payment of its charges, execute and deliver an instrument transferring to such
successor Trustee all the rights, powers and trusts of the retiring Trustee and
shall duly assign, transfer and deliver to such successor Trustee all property
and money held by such retiring Trustee hereunder, subject nevertheless to its
lien, if any, provided for in Section 6.07.

         (b) In case of the appointment hereunder of a successor Trustee with
respect to the Securities of one or more (but not all) series, the Company, the
retiring Trustee and each successor Trustee with respect to the Securities of
one or more series shall execute and deliver an indenture supplemental hereto
wherein each successor Trustee shall accept such appointment and which (1) shall
contain such provisions as shall be necessary or desirable to transfer and
confirm to, and to vest in, each successor Trustee all the rights, powers,
trusts and duties of the retiring Trustee with respect to the Securities of that
or those series to which the appointment of such successor Trustee relates, (2)
if the retiring Trustee is not retiring with respect to all Securities, shall
contain such provisions as shall be deemed necessary or desirable to confirm
that all the rights, powers, trusts and duties of the retiring Trustee with
respect to the Securities of that or those series as to which the retiring
Trustee is not retiring shall continue to be vested in the retiring Trustee, and
(3) shall add to or change any of the provisions of this Indenture as shall be
necessary to provide for or facilitate the administration of the trusts
hereunder by more than one Trustee, it being understood that nothing herein or
in such supplemental indenture shall constitute such Trustees co-trustees of the
same trust and that each such Trustee shall be trustee of a trust or trusts
hereunder separate and apart from any trust or trusts hereunder administered by
any other such Trustee; and upon the execution and delivery of such supplemental
indenture


                                       38
<PAGE>

the resignation or removal of the retiring Trustee shall become effective to the
extent provided therein and each such successor Trustee, without any further
act, deed or conveyance, shall become vested with all the rights, powers, trusts
and duties of the retiring Trustee with respect to the Securities of that or
those series to which the appointment of such successor Trustee relates; but, on
request of the Company or any successor Trustee, such retiring Trustee shall
duly assign, transfer and deliver to such successor Trustee all property and
money held by such retiring Trustee hereunder with respect to the Securities of
that or those series to which the appointment of such successor Trustee relates.

         (c) Upon request of any such successor Trustee, the Company shall
execute any and all instruments for more fully and certainly vesting in and
confirming to such successor Trustee all such rights, powers and trusts referred
to in paragraph (a) or (b) of this Section, as the case may be.

         (d) No successor Trustee shall accept its appointment unless at the
time of such acceptance such successor Trustee shall be qualified and eligible
under this Article.

         Section 6.12 Merger, Conversion, Consolidation or Succession to
Business.

         Any corporation into which the Trustee may be merged or converted or
with which it may be consolidated, or any corporation resulting from any merger,
conversion or consolidation to which the Trustee shall be a party, or any
corporation succeeding to all or substantially all the corporate trust business
of the Trustee, shall be the successor of the Trustee hereunder, provided such
corporation shall be otherwise qualified and eligible under this Article,
without the execution or filing of any paper or any further act on the part of
any of the parties hereto. In case any Securities shall have been authenticated,
but not delivered, by the Trustee then in office, any successor by merger,
conversion or consolidation to such authenticating Trustee may adopt such
authentication and deliver the Securities so authenticated with the same effect
as if such successor Trustee had itself authenticated such Securities. In case
any Securities shall not have been authenticated by such predecessor Trustee,
any such successor Trustee may authenticate and deliver such Securities, in
either its own name or that of its predecessor Trustee, with the full force and
effect which this Indenture provides for the certificate of authentication of
the Trustee.

         Section 6.13 Preferential Collection of Claims Against Company.

         If and when the Trustee shall be or become a creditor of the Company
(or any other obligor upon the Securities), the Trustee shall be subject to the
provisions of Section 3.11 of the Trust Indenture Act regarding the collection
of such claims against the Company (or any such other obligor). A Trustee that
has resigned or been removed shall be subject to and comply with said Section
3.11 to the extent required thereby.

         Section 6.14 Appointment of Authenticating Agent.

         The Trustee may appoint an Authenticating Agent or Agents with respect
to one or more series of Securities (which may be an Affiliate of the Company)
which shall be authorized to act on behalf of the Trustee to authenticate
Securities issued upon registration of transfer or partial redemption or
repayment thereof or pursuant to Section 3.06, and Securities so authenticated
shall be entitled to the benefits of this Indenture and shall be valid and
obligatory for all purposes


                                       39
<PAGE>

as if authenticated by the Trustee hereunder. Wherever reference is made in this
Indenture to the authentication and delivery of Securities by the Trustee or the
Trustee's certificate of authentication, such reference shall be deemed to
include authentication and delivery on behalf of the Trustee by an
Authenticating Agent and a certificate of authentication executed on behalf of
the Trustee by an Authenticating Agent. Each Authenticating Agent shall be
acceptable to the Company and shall at all times be a corporation organized and
doing business and in good standing under the laws of the United States, any
State or the District of Columbia, authorized under such laws to act as
Authenticating Agent, having a combined capital and surplus of no less than
$50,000,000 and subject to supervision or examination by Federal or State
authority. If such Authenticating Agent publishes reports of condition at least
annually, pursuant to law or to the requirements of said supervising or
examining authority, then for the purposes of this Section, the combined capital
and surplus of such Authenticating Agent shall be deemed to be its combined
capital and surplus as set forth in its most recent report of condition so
published. If at any time an Authenticating Agent shall cease to be eligible in
accordance with the provisions of this Section, such Authenticating Agent shall
resign immediately in the manner and with the effect specified in this Section.

         Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to the corporate agency or
corporate trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation shall be otherwise eligible
under this Section, without the execution or filing of any paper or any further
act on the part of the Trustee or the Authenticating Agent. An Authenticating
Agent for any series of Securities may resign at any time by giving written
notice thereof to the Trustee for such series and to the Company. The Trustee
for any series of Securities may at any time terminate the agency of an
Authenticating Agent for such series by giving written notice thereof to such
Authenticating Agent and to the Company. Upon receiving such a notice of
resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, the Trustee of such series may appoint a successor
Authenticating Agent which shall be acceptable to the Company and shall mail
written notice of such appointment by first-class mail, postage prepaid, to all
Holders of Securities of the series with respect to which such Authenticating
Agent will serve, as their names and addresses appear in the Security Register.
Any successor Authenticating Agent upon acceptance of its appointment hereunder
shall become vested with all the rights, powers and duties of its predecessor
hereunder, with like effect as if originally named as an Authenticating Agent.
No successor Authenticating Agent shall be appointed unless eligible under the
provisions of this Section.

         Except with respect to an Authenticating Agent appointed at the request
of the Company, the Trustee agrees to pay to each Authenticating Agent from time
to time reasonable compensation for its services under this Section, and the
Trustee shall be entitled to be reimbursed for such payments, pursuant to the
provisions of Section 6.07.

         If an appointment with respect to one or more series is made pursuant
to this Section, the Securities of such series may have endorsed thereon, in
addition to the Trustee's certificate of authentication, an alternative
certificate of authentication in the following form:

                                       40
<PAGE>

         This is one of the Securities of the series described therein referred
to in the within-mentioned Indenture.

                                             -------------------------,
                                             as Trustee

                                             By:
                                                ---------------------------
                                                As Authenticating Agent

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


                                  ARTICLE VII.

                           HOLDERS' LISTS AND REPORTS
                             BY TRUSTEE AND COMPANY

         Section 7.01 Company to Furnish Trustee Names and Addresses of Holders.

         With respect to each series of Securities, the Company will furnish or
cause to be furnished to the Trustee for the Securities of such Series

         (a) semiannually, not more than 15 days after each Regular Record Date
relating to that series (or, if there is no Regular Record Date relating to that
series, on June 30 and December 31), a list, in such form as such Trustee may
reasonably require, of the names and addresses of the Holders of that series as
of such date, and

         (b) at such other times as the Trustee may request in writing, within
30 days after the receipt by the Company of any such request, a list of similar
form and content as of a date not more than 15 days prior to the time such list
is furnished; provided, however, that if and so long as the Trustee is Security
Registrar with respect to Securities of a particular series no such list shall
be required with respect to the Securities of such series.

         Section 7.02 Preservation of Information; Communications to Holders.

         (a) The Trustee shall preserve, in as current a form as is reasonably
practicable, the names and addresses of Holders contained in the most recent
list furnished to the Trustee as provided in Section 7.01 and the names and
addresses of Holders received by the Trustee in its capacity as Security
Registrar. The Trustee may destroy any list furnished to it as provided in
Section 7.01 upon receipt of a new list so furnished.

         (b) The rights of Holders to communicate with other Holders with
respect to their rights under this Indenture or under the Securities, and the
corresponding rights and privileges of the Trustee, shall be as provided by the
Trust Indenture Act.

         (c) Every Holder of Securities, by receiving and holding the same,
agrees with the Company and the Trustee that neither the Company nor the Trustee
nor any agent of either of



                                       41
<PAGE>

them shall be held accountable by reason of the disclosure of information as to
the names and addresses of the Holders made pursuant to the Trust Indenture Act.

         Section 7.03 Reports by Trustee.

         (a) Within 60 days after May 15 of each year commencing with the year
_____, the Trustee shall transmit to Holders such reports concerning the Trustee
and its actions under this Indenture as may be required pursuant to the Trust
Indenture Act if and to the extent and in the manner provided pursuant thereto.

         (b) A copy of each such report shall, at the time of such transmission
to Holders, be filed by the Trustee with each stock exchange upon which any
Securities are listed, with the Commission and with the Company. The Company
will notify the Trustee when any Securities are listed on any stock exchange.

         Section 7.04 Reports by Company.

         The Company shall file with the Trustee and the Commission, and
transmit to Holders, such information, documents and other reports, and such
summaries thereof, as may be required pursuant to the Trust Indenture Act at the
times and in the manner provided pursuant to such Act; provided that any such
information, documents or reports required to be filed with the Commission
pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as
amended, shall be filed with the Trustee within 15 days after the same is so
required to be filed with the Commission. Delivery of such reports to the
Trustee is for informational purposes only and the Trustee's receipt of such
reports shall not constitute constructive notice of any information contained
therein or determinable from information contained therein, including the
Company's compliance with any of its covenants hereunder (as to which the
Trustee is entitled to rely exclusively on Officers' Certificates).

         Section 7.05 Holders' Meetings.

         (a) A meeting of Holders of any or all series may be called at any time
and from time to time pursuant to the provisions of this Section 7.05 for any of
the following purposes:

               (1) to give any notice to the Company or to the Trustee for such
          series, or to give any directions to the Trustee for such series, or
          to consent to the waiving of any default hereunder and its
          consequences, or to take any other action authorized to be taken by
          Holders pursuant to any of the provisions of Article V;

               (2) to remove the Trustee for such series and appoint a successor
          Trustee pursuant to the provisions of Article VI;

               (3) to consent to the execution of an indenture or supplemental
          indentures hereto pursuant to the provisions of Section 9.02; and

               (4) to take any other action authorized to be taken by or on
          behalf of the Holders of any specified aggregate principal amount of
          the Outstanding Securities of any

                                       42
<PAGE>

          one or more or all series, as the case may be, under any other
          provision of this Indenture or under applicable law.

         (b) The Trustee for any series may at any time call a meeting of
Holders of such series to take any action specified in paragraph (a) of this
Section 7.05, to be held at such time or times and at such place or places as
the Trustee for such series shall determine. Notice of every meeting of the
Holders of any series, setting forth the time and the place of such meeting and
in general terms the action proposed to be taken at such meeting, shall be given
to Holders of such series in the manner and to the extent provided in Section
1.05. Such notice shall be given not less than 20 days nor more than 90 days
prior to the date fixed for the meeting.

         (c) In case at any time the Company, or the Holders of at least 10% in
aggregate principal amount of the Outstanding Securities of a series or of all
series, as the case may be, shall have requested the Trustee for such series to
call a meeting of Holders of any or all such series by written request setting
forth in reasonable detail the action proposed to be taken at the meeting, and
the Trustee shall not have given the notice of such meeting within 20 days after
the receipt of such request, then the Company or such Holders may determine the
time or times and the place or places for such meetings and may call such
meetings to take any action authorized by giving notice thereof as provided in
the preceding paragraph.

         (d) To be entitled to vote at any meeting of Holders a Person shall be
(a) a Holder of a Security of the series with respect to which such meeting is
being held or (b) a Person appointed by an instrument in writing as agent or
proxy by such Holder. The only Persons who shall be entitled to be present or to
speak at any meeting of Holders shall be the Persons entitled to vote at such
meeting and their counsel and any representatives of the Trustee for the series
with respect to which such meeting is being held and its counsel and any
representatives of the Company and its counsel.

         (e) Notwithstanding any other provisions of this Indenture, the Trustee
for any series may make such reasonable regulations as it may deem advisable for
any meeting of Holders of such series, in regard to proof of the holding of
Securities of such series and of the appointment of proxies, and in regard to
the appointment and duties of inspectors of votes, the submission and
examination of proxies, certificates and other evidence of the right to vote,
and such other matters concerning the conduct of the meeting as it shall deem
appropriate.

         The Trustee shall, by an instrument in writing, appoint a temporary
chairman of the meeting, unless the meeting shall have been called by the
Company or by Holders of such series as provided in paragraph (c) of this
Section 7.05, in which case the Company or the Holders calling the meeting, as
the case may be, shall in like manner appoint a temporary chairman. A permanent
chairman and a permanent secretary of the meeting shall be elected by a majority
vote of the meeting.

         Subject to the provisos in the definition of "Outstanding," at any
meeting each Holder of a Debt Security of the series with respect to which such
meeting is being held or proxy therefor shall be entitled to one vote for each
$1,000 principal amount (or such other amount as shall be specified as
contemplated by Section 3.01) of Securities of such series held or represented
by him; provided, however, that no vote shall be cast or counted at any meeting
in respect of any


                                       43
<PAGE>

Security challenged as not Outstanding and ruled by the chairman of the meeting
to be not Outstanding. The chairman of the meeting shall have no right to vote
other than by virtue of Outstanding Securities of such series held by him or
instruments in writing duly designating him as the person to vote on behalf of
Holders of Securities of such series. Any meeting of Holders with respect to
which a meeting was duly called pursuant to the provisions of paragraph (b) or
(c) of this Section 7.05 may be adjourned from time to time by a majority of
such Holders present and the meeting may be held as so adjourned without further
notice.

         (f) The vote upon any resolution submitted to any meeting of Holders
with respect to which such meeting is being held shall be by written ballots on
which shall be subscribed the signatures of such Holders or of their
representatives by proxy and the serial number or numbers of the Securities held
or represented by them. The permanent chairman of the meeting shall appoint two
inspectors of votes who shall count all votes cast at the meeting for or against
any resolution and who shall make and file with the secretary of the meeting
their verified written reports in duplicate of all votes cast at the meeting. A
record in duplicate of the proceedings of each meeting of Holders shall be
prepared by the secretary of the meeting and there shall be attached to said
record the original reports of the inspectors of votes on any vote by ballot
taken thereat and affidavits by one or more persons having knowledge of the
facts setting forth a copy of the notice of the meeting and showing that said
notice was transmitted as provided in paragraph (b) of this Section 7.05. The
record shall show the serial numbers of the Securities voting in favor of or
against any resolution. The record shall be signed and verified by the
affidavits of the permanent chairman and secretary of the meeting and one of the
duplicates shall be delivered to the Company and the other to the Trustee to be
preserved by the Trustee.

         Any record so signed and verified shall be conclusive evidence of the
matters therein stated.

         (g) Nothing contained in this Section 7.05 shall be deemed or construed
to authorize or permit, by reason of any call of a meeting of Holders or any
rights expressly or impliedly conferred hereunder to make such call, any
hindrance or delay in the exercise of any right or rights conferred upon or
reserved to the Trustee or to any Holder under any of the provisions of this
Indenture or of the Securities of any series.

                                 ARTICLE VIII.

                             CONSOLIDATION, MERGER,
                          CONVEYANCE, TRANSFER OR LEASE

         Section 8.01 Company May Consolidate, Etc., Only on Certain Terms.

         The Company shall not consolidate with or merge with or into any other
Person or sell, assign, transfer, lease, convey or otherwise dispose of all or
substantially all of its property or assets to any Person unless:

               (1) in case the Company shall consolidate with or merge into
          another Person or sell, assign, transfer, lease, convey or otherwise
          dispose of all or substantially all of its property or assets to any
          Person, the Person formed by such consolidation or into which


                                       44
<PAGE>

          the Company is merged or the Person which acquires by conveyance or
          transfer, or which leases, the properties and assets of the Company
          shall be either the Company or a corporation or limited liability
          company, shall be organized and validly existing under the laws of the
          United States, any State thereof or the District of Columbia and shall
          expressly assume, by an indenture supplemental hereto executed and
          delivered to the Trustee, all obligations hereunder, including the due
          and punctual payment of the principal of and any premium and interest
          on all the Securities and the performance or observance of every
          covenant of this Indenture on the part of the Company to be performed
          or observed;

               (2) after giving effect to such transaction, no Event of Default,
          and no event which, after notice or lapse of time or both, would
          become an Event of Default, shall have occurred and be continuing; and

               (3) the Company has delivered to the Trustee an Officers'
          Certificate and an Opinion of Counsel, each stating that such
          consolidation, merger, sale, assignment, transfer, lease, conveyance
          or other disposition and, if a supplemental indenture is required in
          connection with such transaction, such supplemental indenture, comply
          with this Article and that all conditions precedent herein provided
          for relating to such transaction have been complied with.

         Notwithstanding the foregoing, any Subsidiary of the Company may
consolidate with, merge into or transfer all or part of its properties and
assets to the Company.

         Section 8.02 Successor Substituted.

         Upon any consolidation of the Company with, or merger of the Company
into, any other Person or any sale, assignment, transfer, lease, conveyance or
other disposition of all or substantially all of the property or assets of the
Company in accordance with Section 8.01, the successor Person formed by such
consolidation or into which the Company is merged or to which such sale,
assignment, transfer, lease, conveyance or other disposition of all or
substantially all of its property or assets is made shall succeed to, and be
substituted for, and may exercise every right and power of, the Company under
this Indenture with the same effect as if such successor Person had been named
as the Company herein, and thereafter, except in the case of a lease, the
predecessor Person shall be relieved of all obligations and covenants under this
Indenture and the Securities. In the case of a lease, the predecessor Person
shall not be released from its obligations to pay the principal of, premium, if
any, and interest on the Securities. All Securities issued by the successor
Person shall in all respects have the same legal priority as the Securities
theretofore or thereafter authenticated, issued and delivered in accordance with
the terms of this Indenture.





                                       45
<PAGE>


                                  ARTICLE IX.

                             SUPPLEMENTAL INDENTURES

         Section 9.01 Supplemental Indentures Without Consent of Holders.

         Without the consent of any Holders, the Company and the Trustee, at any
time and from time to time, may amend the Securities of a series or enter into
one or more indentures supplemental hereto, in form satisfactory to the Trustee,
for any of the following purposes:

               (1) to make such provision in regard to matters or questions
          arising under this Indenture as may be necessary or desirable and not
          inconsistent with this Indenture or for the purpose of supplying any
          omission, curing any ambiguity, or curing, correcting or supplementing
          any defective or inconsistent provision, provided that such provision
          shall not adversely affect the interests of Holders of Outstanding
          Securities created prior to the execution of such supplemental
          indenture in any material respect; or

               (2) to change or eliminate any of the provisions of this
          Indenture, provided that any such change or elimination shall become
          effective only when there is no Outstanding Security of any series
          created prior to the execution of such supplemental indenture which is
          entitled to the benefit of such provision; or

               (3) to secure the Securities; or

               (4) to establish the form of Securities of any series as
          permitted by Sections 2.01 and 3.01; or

               (5) to evidence the succession of another Person to the Company,
          and the assumption by any such successor of the covenants of the
          Company herein and in the Securities; or

               (6) to grant to or confer upon the Trustee for the benefit of the
          Holders any additional rights, remedies, powers or authority; or

               (7) to permit the Trustee to comply with any duties imposed upon
          it by law; or

               (8) to specify further the duties and responsibilities of, and to
          define further the relationships among, the Trustee, any
          Authenticating Agent and any Paying Agent; or

               (9) to add to the covenants of the Company for the benefit of the
          Holders of all or any series of Securities (and if such covenants are
          to be for the benefit of less than all series of Securities, stating
          that such covenants are expressly being included solely for the
          benefit of such series) or to surrender a right or power conferred on
          the Company herein; or

               (10) to add any additional Events of Default (and if such Events
          of Default are to be applicable to less than all series of Securities,
          stating that such Events of Default are expressly being included for
          the benefit of such series).

                                       46
<PAGE>

         Section 9.02 Supplemental Indentures With Consent of Holders.

         With the consent of the Holders of not less than a majority in
principal amount of the Outstanding Securities of each series affected by such
supplemental indenture, by Act of said Holders delivered to the Company and the
Trustee, the Company and the Trustee may enter into an indenture or indentures
supplemental hereto for the purpose of adding any provisions to or changing in
any manner or eliminating any of the provisions of this Indenture or of
modifying in any manner the rights of the Holders of Securities of such series
under this Indenture; provided, however, that no such supplemental indenture
shall:

               (1) change the Stated Maturity of any Security; or reduce the
          rate of interest on any Security; or change the method of calculating
          interest, or any term used in the calculation of interest, or the
          period for which interest is payable, on any Security; or reduce the
          principal amount of any Security or any premium thereon; or reduce the
          payment of any mandatory sinking fund or analogous obligation; or
          reduce the amount of the principal of an Original Issue Discount
          Security that would be due and payable upon a declaration of
          acceleration of the Maturity thereof; or adversely affect the right of
          repayment or renewal, if any, at the option of the Holders; or change
          the coin or currency in which the principal of any Security or any
          premium or interest thereon is payable; or change the date on which
          any Security may be redeemed; or adversely affect the rights of any
          Holding to institute suit for the enforcement of any payment of
          principal of or any premium or interest on any Security, in each case
          without the consent of the Holder of each Outstanding Security that
          would be affected thereby (for purposes of this Section 9.02(1) only,
          the term "Security" shall include Securities for which an offer to
          purchase has been accepted by the Company); or

               (2) reduce the aforesaid percentage of Securities, the Holders of
          which are required to consent to any such supplemental indenture, or
          the percentage in aggregate principal amount of the Outstanding
          Securities the consent of the Holders of which is required for any
          waiver of certain past defaults or Events of Default hereunder or the
          consequences thereof, in each case without the consent of the Holders
          of all of the Outstanding Securities.

         A supplemental indenture which changes or eliminates any covenant or
other provision of this Indenture which has expressly been included solely for
the benefit of one or more particular series of Securities, or which modifies
the rights of the Holders of Securities of such series with respect to such
covenant or other provision, shall be deemed not to affect the rights under this
Indenture of the Holders of Securities of any other series.

         It shall not be necessary for any Act of Holders under this Section to
approve the particular form of any proposed supplemental indenture, but it shall
be sufficient if such Act shall approve the substance thereof.

         Section 9.03 Execution of Supplemental Indentures.

         In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications thereby of
the trusts created by this Indenture, the


                                       47
<PAGE>

Trustee shall be entitled to receive, and (subject to Section 6.01) shall be
fully protected in relying upon, an Opinion of Counsel stating that the
execution of such supplemental indenture is authorized or permitted by this
Indenture. The Trustee may, but shall not be obligated to, enter into any such
supplemental indenture which affects the Trustee's own rights, duties or
immunities under this Indenture or otherwise.

         Section 9.04 Effect of Supplemental Indentures.

         Upon the execution of any supplemental indenture under this Article,
this Indenture shall be modified in accordance therewith, and such supplemental
indenture shall form a part of this Indenture for all purposes; and every Holder
of Securities theretofore or thereafter authenticated and delivered hereunder
shall be bound thereby.

         Section 9.05 Conformity with Trust Indenture Act.

         Every supplemental indenture executed pursuant to this Article shall
conform to the requirements of the Trust Indenture Act as then in effect.

         Section 9.06 Reference in Securities to Supplemental Indentures.

         Securities of any series authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article may, and shall
if required by the Trustee, bear a notation in form approved by the Trustee as
to any matter provided for in such supplemental indenture. If the Company shall
so determine, new Securities of any series so modified as to conform, in the
opinion of the Trustee and the Company, to any such supplemental indenture may
be prepared and executed by the Company and authenticated and delivered by the
Trustee in exchange for Outstanding Securities of such series.

         Section 9.07 Notice of Supplemental Indenture.

         Promptly after the execution by the Company and the appropriate Trustee
of any supplemental indenture, the Company shall transmit, as provided herein,
to all Holders of any series of the Securities affected thereby, a notice
setting forth in general terms the substance of such supplemental indenture.

                                   ARTICLE X.

                                    COVENANTS

         Section 10.01 Payment of Principal, Premium and Interest.

         The Company covenants and agrees for the benefit of each series of
Securities that it will duly and punctually pay the principal of (and premium,
if any) and interest on the Securities of that series in accordance with the
terms of the Securities and this Indenture.

                                       48
<PAGE>

         Section 10.02 Maintenance of Office or Agency.

         The Company will maintain in each Place of Payment an office or agency
where Securities may be presented or surrendered for payment, where Securities
may be surrendered for registration of transfer or exchange and where notices
and demands to or upon the Company in respect of the Securities and this
Indenture may be served. The Company will give prompt written notice to the
Trustee of the location, and any change in the location, of such office or
agency. If at any time the Company terminates the appointment of a Paying Agent
or Security Registrar or otherwise shall fail to maintain any such required
office or agency, the Company shall use its reasonable best efforts to appoint a
successor Paying Agent or Security Registrar reasonably acceptable to the
Trustee. If the Company fails to maintain a Paying Agent or Security Registrar,
the Trustee will act as such, and the Company hereby appoints the Trustee as its
agent to receive all such presentations, surrenders, notices and demands.

         The Company may also from time to time designate one or more other
offices or agencies where the Securities may be presented or surrendered for any
or all such purposes and may from time to time rescind such designations;
provided, however, that no such designation or rescission shall in any manner
relieve the Company of its obligation to maintain an office or agency in each
Place of Payment for such purposes. The Company will give prompt written notice
to the Trustee of any such designation or rescission and of any change in the
location of any such other office or agency.

         Section 10.03 Money for Securities Payments to Be Held in Trust.

         If the Company shall at any time act as its own Paying Agent with
respect to any series of Securities, it will, on or before each due date of the
principal of (and premium, if any) or interest on any of the Securities of that
series, segregate and hold in trust for the benefit of the Persons entitled
thereto a sum sufficient to pay the principal (and premium, if any) or interest
so becoming due until such sums shall be paid to such Persons or otherwise
disposed of as herein provided and will promptly notify the Trustee in writing
of its action or failure so to act.

         Whenever the Company shall have one or more Paying Agents for any
series of Securities, it will, prior to each due date of the principal of (and
premium, if any) or interest on any Securities of that series, deposit with a
Paying Agent a sum sufficient to pay the principal (and premium, if any) or
interest so becoming due, such sum to be held in trust for the benefit of the
Persons entitled to such principal, premium or interest, and (unless such Paying
Agent is the Trustee) the Company will promptly notify the Trustee in writing of
its action or failure so to act.

         The Company will cause each Paying Agent for any series of Securities
other than the Trustee to execute and deliver to the Trustee an instrument in
which such Paying Agent shall agree with the Trustee, subject to the provisions
of this Section, that such Paying Agent will:

               (1) hold all sums held by it for the payment of the principal of
          (and premium, if any) or interest on Securities of that series in
          trust for the benefit of the Persons entitled thereto until such sums
          shall be paid to such Persons or otherwise disposed of as herein
          provided;

                                       49
<PAGE>

               (2) give the Trustee written notice of any default by the Company
          (or any other obligor upon the Securities of that series) in the
          making of any payment of principal (and premium, if any) or interest
          on the Securities of that series; and

               (3) at any time during the continuance of any such default, upon
          the written request of the Trustee, forthwith pay to the Trustee all
          sums so held in trust by such Paying Agent.

         The Company may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose, pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held in
trust by the Company or such Paying Agent, such sums to be held by the Trustee
upon the same trusts as those upon which such sums were held by the Company or
such Paying Agent; and, upon such payment by any Paying Agent to the Trustee,
such Paying Agent shall be released from all further liability with respect to
such money.

         Any money deposited with the Trustee or any Paying Agent, or then held
by the Company, in trust for the payment of the principal of (and premium, if
any) or interest on any Security of any series and remaining unclaimed for two
years after such principal (and premium, if any) or interest has become due and
payable shall be paid to the Company on Company Request, or (if then held by the
Company) shall be discharged from such trust; and the Holder of such Security
shall thereafter, as an unsecured general creditor, look only to the Company for
payment thereof, and all liability of the Trustee or such Paying Agent with
respect to such trust money, and all liability of the Company as trustee
thereof, shall thereupon cease; provided, however, that the Trustee or such
Paying Agent, before being required to make any such repayment, may at the
expense of the Company cause to be published once, in an Authorized Newspaper in
the Borough of Manhattan, The City of New York, notice that such money remains
unclaimed and that, after a date specified therein, which shall not be less than
30 days from the date of such publication, any unclaimed balance of such money
then remaining will be repaid to the Company.

         Section 10.04 Corporate Existence.

         Subject to Article VIII, the Company will do or cause to be done all
things necessary to preserve and keep in full force and effect its corporate
existence, rights (charter and statutory) and franchises; provided, however,
that the Company shall not be required to preserve any such right or franchise
if the Company shall determine that the preservation thereof is no longer
desirable in the conduct of the business of the Company.

         Section 10.05 Notice of Defaults.

         The Company will give to the Trustee written notice of the occurrence
of an Event of Default within five days after the Company becomes aware of such
occurrence.

                                       50
<PAGE>

         Section 10.06 Waiver of Certain Covenants.

         The Company may omit in any particular instance to comply with any
term, provision or condition set forth in Section 8.01(3) or Section 10.04 with
respect to the Securities of any series if, before the time for such compliance,
the Holders of at least a majority in principal amount of the Outstanding
Securities of such series shall, by Act of such Holders, either waive compliance
in such instance or generally waive compliance with such term, provision or
condition, but no such waiver shall extend to or affect such term, provision or
condition except to the extent so expressly waived, and, until such waiver shall
become effective, the obligations of the Company and the duties of the Trustee
in respect of any such term, provision or condition shall remain in full force
and effect.

                                  ARTICLE XI.

                            REDEMPTION OF SECURITIES

         Section 11.01 Applicability of Article.

         Securities of any series which are redeemable before their Stated
Maturity shall be redeemable in accordance with their terms and (except as
otherwise specified as contemplated in Section 3.01 for Securities of any
series) in accordance with this Article.

         Section 11.02 Election to Redeem; Notice to Trustee.

         The election of the Company to redeem any Securities shall be evidenced
by a Board Resolution. In case of any redemption at the election of the Company
of less than all the Securities of any series, the Company shall, at least 60
days prior to the Redemption Date fixed by the Company (unless a shorter notice
shall be satisfactory to the Trustee), notify the Trustee of such Redemption
Date, of the principal amount of Securities of such series to be redeemed and,
if applicable, of the tenor of the Securities to be redeemed. In the case of any
redemption of Securities prior to the expiration of any restriction on such
redemption provided in the terms of such Securities or elsewhere in this
Indenture, the Company shall furnish the Trustee with an Officers' Certificate
evidencing compliance with such restriction.

         Section 11.03 Selection by Trustee of Securities to Be Redeemed.

         If less than all the Securities of any series are to be redeemed
(unless all of the Securities of such series and of a specified tenor are to be
redeemed), the particular Securities to be redeemed shall be selected not more
than 60 days prior to the Redemption Date by the Trustee, from the Outstanding
Securities of such series not previously called for redemption, in a manner
which the Trustee deems fair and appropriate, which may provide for the
selection for redemption of portions (equal to the minimum authorized
denomination for Securities of that series or any integral multiple thereof) of
the principal amount of Securities of such series of a denomination larger than
the minimum authorized denomination for Securities of that series. If the
Company shall so specify and identify the appropriate Securities, Securities
owned of record and beneficially by the Company or any Subsidiary shall not be
included in the Securities selected for redemption.

                                       51
<PAGE>

         The Trustee shall promptly notify the Company in writing of the
Securities selected for redemption and, in the case of any Securities selected
for partial redemption, the principal amount thereof to be redeemed.

         For all purposes of this Indenture, unless the context otherwise
requires, all provisions relating to the redemption of Securities shall relate,
in the case of any Securities redeemed or to be redeemed only in part, to the
portion of the principal amount of such Securities which has been or is to be
redeemed.

         Section 11.04 Notice of Redemption.

         Notice of redemption shall, unless otherwise specified by the terms of
the Securities to be redeemed, be given not less than 30 nor more than 60 days
prior to the Redemption Date, to each Holder of Securities to be redeemed, in
accordance with Section 1.06.

         All notices of redemption shall state:

               (1) the Redemption Date;

               (2) the Redemption Price;

               (3) the place or places where such Securities are to be
          surrendered for payment of the Redemption Price, which shall be the
          office or agency of the Company in each Place of Payment;

               (4) that payment of the Redemption Price will be made on the
          surrender of such Securities at such place or places of redemption;

               (5) that accrued interest to the Redemption Date will be paid as
          specified in such notice and that from and after the Redemption Date
          interest on such Securities will cease to accrue;

               (6) if less than all the Outstanding Securities of any series are
          to be redeemed (unless all the Securities of such series of a
          specified tenor are to be redeemed), the identification (and, in the
          case of partial redemption of any Securities, the principal amounts)
          of the particular Securities to be redeemed;

               (7) in the case of partial redemption of any Securities, that
          upon surrender of such Securities, a new Security or new Securities
          having the same terms will be issued in aggregate principal amount
          equal to the unredeemed portion;

               (8) that redemption is subject to the receipt by the Trustee or a
          Paying Agent prior to the Redemption Date of sufficient funds to make
          the redemption, if such is the case; and

               (9) that the redemption is for a sinking fund, if such is the
          case.

                                       52
<PAGE>

         Notice of redemption of Securities to be redeemed at the election of
the Company shall be given by the Company or, at the Company's request, by the
Trustee in the name and at the expense of the Company.

         Section 11.05 Deposit of Redemption Price.

         Prior to any Redemption Date, the Company shall deposit with the
Trustee or with a Paying Agent (or, if the Company is acting as its own Paying
Agent, segregate and hold in trust as provided in Section 10.03) an amount of
money sufficient to pay the Redemption Price of, and (except if the Redemption
Date shall be an Interest Payment Date) accrued interest on, all the Securities
which are to be redeemed on that date.

         Section 11.06 Securities Payable on Redemption Date.

         Notice of redemption having been given as aforesaid, the Securities so
to be redeemed shall, on the Redemption Date, become due and payable at the
Redemption Price therein specified, and from and after such date (unless the
Company shall default in the payment of the Redemption Price and accrued
interest) such Securities shall cease to bear interest. Upon surrender of any
such Security for redemption in accordance with said notice, such Security shall
be paid by the Company at the Redemption Price, together with accrued interest
to the Redemption Date; provided, however, that, unless otherwise specified as
contemplated by Section 3.01, installments of interest whose Stated Maturity is
on or prior to the Redemption Date will be payable to the Holders of such
Securities, or one or more Predecessor Securities, registered as such at the
close of business on the relevant Record Dates according to their terms and the
provisions of Section 3.07.

         If any Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal and any premium shall, until
paid, bear interest from the Redemption Date at the rate prescribed therefor in
the Security.

         Section 11.07 Securities Redeemed in Part.

         Any Security which is to be redeemed only in part shall be surrendered
at a Place of Payment therefor (with, if the Company or the Trustee so requires,
due endorsement by, or a written instrument of transfer in form satisfactory to
the Company and the Trustee duly executed by, the Holder thereof or his attorney
duly authorized in writing), and the Company shall execute, and the Trustee
shall authenticate and deliver to the Holder of such Security without service
charge, a new Security or Securities of the same series and of like tenor, of
any authorized denomination as requested by such Holder, in aggregate principal
amount equal to and in exchange for the unredeemed portion of the principal of
the Security so surrendered. If a Global Security is so surrendered, such new
Security so issued shall be a new Global Security.

                                       53
<PAGE>

                                  ARTICLE XII.

                                  SINKING FUNDS

         Section 12.01 Applicability of Article.

         The provisions of this Article shall be applicable to any sinking fund
for the retirement of Securities of a series except as otherwise specified as
contemplated by Section 3.01 for Securities of such series.

         The minimum amount of any sinking fund payment provided for by the
terms of Securities of any series is herein referred to as a "mandatory sinking
fund payment," and any payment in excess of such minimum amount provided for by
the terms of Securities of any series is herein referred to as an "optional
sinking fund payment." If provided for by the terms of Securities of any series,
the cash amount of any sinking fund payment may be subject to reduction as
provided in Section 12.02. Each sinking fund payment shall be applied to the
redemption of Securities of any series as provided for by the terms of
Securities of such series.

         Section 12.02 Satisfaction of Mandatory Sinking Fund Payments with
Securities.

         The Company (1) may deliver Outstanding Securities of a series to the
Trustee for cancellation (other than any previously called for redemption) and
(2) may apply as a credit Securities of a series which have been redeemed either
at the election of the Company or the Holders, if applicable, pursuant to the
terms of such Securities or through the application of permitted optional
sinking fund payments pursuant to the terms of such Securities, in each case in
satisfaction of all or any part of any mandatory sinking fund payment with
respect to the Securities of such series required to be made pursuant to the
terms of such Securities as provided for by the terms of such series or may
apply Securities of such series which have been previously cancelled; provided
that such Securities have not been previously so credited. Such Securities shall
be received and credited for such purpose by the Trustee at the Redemption Price
specified in such Securities for redemption through operation of such mandatory
sinking fund and the amount of such mandatory sinking fund payment shall be
reduced accordingly.

         Section 12.03 Redemption of Securities for Mandatory Sinking Fund.

         Not less than 60 days prior to each mandatory sinking fund payment date
for any series of Securities, the Company will deliver to the Trustee an
Officers' Certificate specifying the amount of the next ensuing mandatory
sinking fund payment for that series pursuant to the terms of that series, the
portion thereof, if any, which is to be satisfied by payment of cash and the
portion thereof, if any, which is to be satisfied by delivering and crediting
Securities or applying previously cancelled Securities of that series pursuant
to Section 12.02 and the basis for such credit and will also deliver to the
Trustee any Securities to be so delivered which have not theretofore been
delivered to the Trustee. Not less than 30 days before each such mandatory
sinking fund payment date, the Trustee shall select the Securities to be
redeemed upon such mandatory sinking fund payment date in the manner specified
in Section 11.02 and cause notice of the redemption thereof to be given in the
name of and at the expense of the Company in the manner provided in Section
11.03. Such notice having been duly given, the redemption of such


                                       54
<PAGE>

Securities shall be made upon the terms and in the manner stated in Sections
11.04, 11.05 and 11.06.

                                 ARTICLE XIII.

                             REPAYMENT OF SECURITIES
                              AT OPTION OF HOLDERS

         Section 13.01 Applicability of Article.

         Securities of any series that are repayable before their Stated
Maturity at the option of the Holders shall be repaid in accordance with their
terms and (except as otherwise specified as contemplated by Section 3.01 for
Securities of any series) in accordance with this Article.

         Section 13.02 Notice of Repayment Date.

         Notice of any Repayment Date with respect to Securities of any series
shall, unless otherwise specified by the terms of the Securities of such series,
be given by the Company not less than 45 nor more than 60 days prior to such
Repayment Date, to the Trustee and to each Holder of Securities of such series
in accordance with Sections 1.05 and 1.06, respectively.

         The notice as to Repayment Date shall state:

               (1) the Repayment Date;

               (2) the Repayment Price;

               (3) the place or places where such Securities are to be
          surrendered for payment of the Repayment Price, which shall be the
          office or agency of the Company in each Place of Payment, and the date
          by which Securities must be so surrendered in order to be repaid;

               (4) a description of the procedure which a Holder must follow to
          exercise a repayment right; and

               (5) that exercise of the option to elect repayment is
          irrevocable.

         No failure of the Company to give the foregoing notice shall limit any
Holder's right to exercise a repayment right.

         Section 13.03 Deposit of Repayment Price.

         On or prior to any Repayment Date, the Company shall deposit with the
Trustee or with a Paying Agent (or, if the Company is acting as its own Paying
Agent, segregate and hold in trust as provided in Section 10.03) an amount of
money sufficient to pay the Repayment Price of and (except if the Repayment Date
shall be an Interest Payment Date) accrued interest on, all the Securities of
such series which are to be repaid on that date.

                                       55
<PAGE>

         Section 13.04 Securities Payable on Repayment Date.

         The form of option to elect repayment having been delivered as
specified in the form of Security for such series as provided in Section 2.01,
the Securities so to be repaid shall, on the Repayment Date, become due and
payable at the Repayment Price applicable thereto, and from and after such date
(unless the Company shall default in the payment of the Repayment Price and
accrued interest) such Securities shall cease to bear interest. Upon surrender
of any such Security for repayment in accordance with said notice, such Security
shall be paid by the Company at the Repayment Price, together with accrued
interest to the Repayment Date; provided, however, that, unless otherwise
specified as contemplated by Section 3.01, installments of interest whose Stated
Maturity is on or prior to such Repayment Date will be payable to the Holders of
such Securities, or one or more Predecessor Securities, registered as such at
the close of business on the relevant Record Date according to their terms and
the provisions of Section 3.07.

         If any Security to be repaid shall not be so paid upon surrender
thereof for repayment, the principal shall, until paid, bear interest from the
Repayment Date at the rate prescribed in the Security.

         Section 13.05 Securities Repaid in Part.

         Any Security which by its terms may be repaid in part at the option of
the Holder thereof and which is to be repaid only in part shall be surrendered
at any office or agency of the Company designated for that purpose pursuant to
Section 10.02 (with, if the Company or the Trustee so requires, due endorsement
by, or a written instrument of transfer in form satisfactory to the Company and
the Trustee duly executed by, the Holder thereof or his attorney duly authorized
in writing), and the Company shall execute, and the Trustee shall authenticate
and deliver to the Holder of such Security, without service charge, a new
Security or Securities of the same series and of like tenor, of any authorized
denomination as requested by such Holder, in aggregate principal amount equal to
and in exchange for the unrepaid portion of the principal of the Security so
surrendered. If a Global Security is so surrendered, such new Security so issued
shall be a new Global Security.

                                  ARTICLE XIV.

                       DEFEASANCE AND COVENANT DEFEASANCE

         Section 14.01 Applicability of Article; Company's Option to Effect
Defeasance or Covenant Defeasance.

         If pursuant to Section 3.01 provision is made for either or both of (a)
defeasance of the Securities of a series under Section 14.02 or (b) covenant
defeasance of the Securities of a series under Section 14.03, then the
provisions of such Section or Sections, as the case may be, together with the
other provisions of this Article XIV, shall be applicable to the Securities of
such series, and the Company may at its option at any time with respect to the
Securities of such series, elect to have either Section 14.02 (if applicable) or
Section 14.03 (if applicable) be applied to the


                                       56
<PAGE>

Outstanding Securities of such series upon compliance with the conditions set
forth below in this Article XIV.

         Section 14.02 Defeasance and Discharge.

         Upon the Company's exercise of the above option applicable to this
Section with respect to the Outstanding Securities of a particular series, the
Company shall be deemed to have been discharged from its obligations with
respect to the Outstanding Securities of such series (except for certain
obligations to register the transfer or exchange of Securities of such series,
to replace stolen, lost or mutilated Securities of such series, and to maintain
paying agencies) on and after the date the conditions precedent set forth below
are satisfied (hereinafter, "defeasance"). For this purpose, such defeasance
means that the Company shall be deemed to have paid and discharged the entire
indebtedness represented by the Outstanding Securities of such series and to
have satisfied all its other obligations under such Securities and this
Indenture insofar as such Securities are concerned (and the Trustee, at the
expense of the Company and upon Company Request, shall execute proper
instruments acknowledging the same), except for the following which shall
survive until otherwise terminated or discharged hereunder: (A) the rights of
Holders of Outstanding Securities of such series to receive, solely from the
trust fund described in Section 14.04 as more fully set forth in such Section,
payments of the principal of and any premium and interest on such Securities
when such payments are due, (B) the Company's obligations with respect to such
Securities under Section 3.04, 3.05, 3.06, 6.07, 10.02 and 10.03 and such
obligations as shall be ancillary thereto, (C) the rights, powers, trusts,
duties, immunities and other provisions in respect of the Trustee hereunder and
(D) this Article XIV. Subject to compliance with this Article XIV, the Company
may exercise its option under this Section 14.02 notwithstanding the prior
exercise of its option under Section 14.03 with respect to the Securities of
such series.

         Section 14.03 Covenant Defeasance.

         Upon the Company's exercise of the above option applicable to this
Section with respect to the Outstanding Securities of a particular series, the
Company shall be released from its obligations under Sections 8.01 and 10.04
(and any other covenant applicable to such Securities that is determined
pursuant to Section 3.01 to be subject to covenant defeasance under this
Section) and the occurrence of an event specified in Clause (4) of Section 5.01
with respect to any of Sections 8.01 or 10.04 (and any other Event of Default
applicable to such Securities that is determined pursuant to Section 3.01 to be
subject to covenant defeasance under this Section) shall not be deemed to be an
Event of Default with respect to the Outstanding Securities of such series on
and after the date the conditions set forth below are satisfied (hereinafter,
"covenant defeasance"). For this purpose, such covenant defeasance means that,
with respect to the Outstanding Securities of such series, the Company may omit
to comply with and shall have no liability in respect of any term, condition,
limitation or restrictive covenant set forth in any such Section or Clause
whether directly or indirectly by reason of any reference elsewhere herein to
any such Section or Clause or by reason of any reference in any such Section or
Clause to any other provision herein or in any other document, including any
supplement hereto, any Board Resolution or Officers' Certificate delivered
hereto but the remainder of this Indenture and such Securities shall be
unaffected thereby.

                                       57
<PAGE>

         Section 14.04 Conditions to Defeasance or Covenant Defeasance.

         The following shall be the conditions precedent to application of
either Section 14.02 or Section 14.03 to the Outstanding Securities of a
particular series:

               (1) The Company shall irrevocably have deposited or caused to be
          deposited with the Trustee (or another trustee satisfying the
          requirements of Section 6.09 who shall agree to comply with the
          provisions of this Article XIV applicable to it) as trust funds in
          trust for the purpose of making the following payments, specifically
          pledged as security for, and dedicated solely to, the benefit of the
          Holders of such Securities, (A) money in an amount, or (B) U.S.
          Government Obligations which through the scheduled payment of
          principal and interest in respect thereof in accordance with their
          terms will provide, not later than one day before the due date of any
          payment, money in an amount, or (C) a combination thereof, sufficient,
          without reinvestment, in the opinion of a nationally recognized firm
          of independent public accountants expressed in a written certification
          thereto delivered to the Trustee, to pay and discharge, and which
          shall be applied by the Trustee (or other qualifying trustee) to pay
          and discharge, (i) the principal of and any premium, if any, and
          interest on the Outstanding Securities of such series on the maturity
          of such principal, premium or interest and (ii) any mandatory sinking
          fund payments or analogous payments applicable to the Outstanding
          Securities of such series on the day on which such payments are due in
          accordance with the terms of this Indenture and of such Securities.
          Before such a deposit, the Company may make arrangements satisfactory
          to the Trustee for the redemption of Securities at a future date or
          dates in accordance with Article XI, which shall be given effect in
          applying the foregoing. For this purpose, "U.S. Government
          Obligations" means securities that are (x) direct obligations of the
          United States for the payment of which its full faith and credit is
          pledged or (y) obligations of a Person controlled or supervised by and
          acting as an agency or instrumentality of the United States the timely
          payment of which is unconditionally guaranteed as a full faith and
          credit obligation by the United States, which, in either case, are not
          callable or redeemable at the option of the issuer thereof, and shall
          also include a depositary receipt issued by a bank (as defined in
          Section 3(a)(2) of the Securities Act of 1933, as amended) as
          custodian with respect to any such U.S. Government Obligation or a
          specific payment of principal of or interest on any such U.S.
          Government Obligation held by such custodian for the account of the
          holder of such depositary receipt, provided that (except as required
          by law) such custodian is not authorized to make any deduction from
          the amount payable to the holder of such depositary receipt from any
          amount received by the custodian in respect of the U.S. Government
          Obligation or the specific payment of principal of or interest on the
          U.S. Government Obligation evidenced by such depositary receipt.

               (2) No Event of Default or event which with notice or lapse of
          time or both would become an Event of Default with respect to the
          Securities of such series shall have occurred and be continuing (A) on
          the date of such deposit or (B) insofar as subsections 5.01(7) and (8)
          are concerned, at any time during the period ending on the 91st day
          after the date of such deposit or, if longer, ending on the day
          following the expiration of the longest preference period applicable
          to the Company in respect of such deposit (it being


                                       58
<PAGE>

          understood that the condition in this condition shall not be deemed
          satisfied until the expiration of such period).

               (3) Such defeasance or covenant defeasance shall not (A) cause
          the Trustee for the Securities of such series to have a conflicting
          interest as defined in Section 6.08 or for purposes of the Trust
          Indenture Act with respect to any securities of the Company or (B)
          result in the trust arising from such deposit to constitute, unless it
          is qualified as, a regulated investment company under the Investment
          Company Act of 1940, as amended.

               (4) Such defeasance or covenant defeasance shall not result in a
          breach or violation of, or constitute a default under, this Indenture
          or any other material agreement or instrument to which the Company is
          a party or by which it is bound.

               (5) In the case of an election under Section 14.02, the Company
          shall have delivered to the Trustee an Opinion of Counsel stating that
          (x) the Company has received from, or there has been published by, the
          Internal Revenue Service a ruling, or (y) since the date of this
          Indenture there has been a change in the applicable Federal income tax
          law, in either case to the effect that, and based thereon such opinion
          shall confirm that, the Holders of the Outstanding Securities of such
          series will not recognize income, gain or loss for United States
          federal income tax purposes as a result of such deposit, defeasance
          and discharge and will be subject to United States federal income tax
          on the same amounts, in the same manner and at the same times as would
          have been the case if such deposit, defeasance and discharge had not
          occurred.

               (6) In the case of an election under Section 14.03, the Company
          shall have delivered to the Trustee an Opinion of Counsel to the
          effect that the Holders of the Outstanding Securities of such series
          will not recognize income, gain or loss for United States federal
          income tax purposes as a result of such covenant defeasance and will
          be subject to United States federal income tax on the same amounts, in
          the same manner and at the same times as would have been the case if
          such deposit and covenant defeasance had not occurred.

               (7) Such defeasance or covenant defeasance shall be effected in
          compliance with any additional terms, conditions or limitations which
          may be imposed on the Company in connection therewith pursuant to
          Section 3.01.

               (8) The Company shall have delivered to the Trustee an Officers'
          Certificate and an Opinion of Counsel, each stating that all
          conditions precedent provided for relating to either the defeasance
          under Section 14.02 or the covenant defeasance under Section 14.03 (as
          the case may be) have been complied with.

         Section 14.05 Deposited Money and U.S. Government Obligations to be
Held in Trust; Other Miscellaneous Provisions.

         Subject to the provisions of the last paragraph of Section 10.03, all
money and U.S. Government Obligations (including the proceeds thereof) deposited
with the Trustee (or other qualifying trustee - collectively, for purposes for
this Section 14.05, the "Trustee") pursuant to Section 14.04 in respect of the
Outstanding Securities of such series shall be held in trust and


                                       59
<PAGE>

applied by the Trustee, in accordance with the provisions of such Securities and
this Indenture, to the payment, either directly or through any Paying Agent (but
not including the Company acting as its own Paying Agent) as the Trustee may
determine, to the Holders of such Securities, of all sums due and to become due
thereon in respect of principal, premium and interest, but such money need not
be segregated from other funds except to the extent required by law.

         The Company shall pay and indemnify the Trustee against any tax, fee or
other charge imposed on or assessed against the money or U.S. Government
Obligations deposited pursuant to Section 14.04 or the principal and interest
received in respect thereof.

         Anything herein to the contrary notwithstanding, the Trustee shall
deliver or pay to the Company from time to time upon Company Request any money
or U.S. Government Obligations held by it as provided in Section 14.04 which, in
the opinion of a nationally recognized firm of independent public accountants
expressed in a written certification thereof delivered to the Trustee, are in
excess of the amount thereof which would then be required to be deposited to
effect an equivalent defeasance or covenant defeasance.

         Section 14.06 Reinstatement.

         If the Trustee or the Paying Agent is unable to apply any money in
accordance with Section 14.02 or 14.03 with respect to the Securities of any
series by reason of any order or judgment of any court or governmental authority
enjoining, restraining or otherwise prohibiting such application, then the
Company's obligations under this Indenture and the Securities of such series
shall be revived and reinstated as though no deposit had occurred pursuant to
this Article XIV until such time as the Trustee or Paying Agent is permitted to
apply all such money in accordance with Section 14.02 or 10.03; provided,
however, that if the Company makes any payment of the principal of or any
premium or interest on any such Security following the reinstatement of its
obligations, the Company shall be subrogated to the rights of the Holders of
such Securities to receive such payment from the money held by the Trustee or
the Paying Agent.

                                  ARTICLE XV.

                           IMMUNITY OF INCORPORATORS,
                      STOCKHOLDERS, OFFICERS AND DIRECTORS

         Section 15.01 Immunity of Incorporators, Stockholders, Officers and
Directors.

         No recourse under or upon any obligation, covenant or agreement of this
Indenture, or of any Security, or for any claim based thereon or otherwise in
respect thereof, shall be had against any incorporator, stockholder, officer or
director, as such, past, present or future, of the Company or of any successor
corporation, either directly or through the Company, whether by virtue of any
constitution, statute or rule of law, or by the enforcement of any assessment or
penalty or otherwise; it being expressly understood that this Indenture and the
obligations issued hereunder are solely corporate obligations, and that no
personal liability whatever shall attach to, or is or shall be incurred by, the
incorporators, stockholders, officers or directors, as such, of the Company or
any successor corporation, or any of them, because of the creation of the

                                       60
<PAGE>

indebtedness hereby authorized, or under or by this Indenture or in any of the
Securities or implied therefrom; and that any and all such personal liability of
every name and nature, either at common law or in equity or by constitution or
statute, of, and any and all such rights and claims against, every such
incorporator, stockholder, officer or director, as such, because of the creation
of the indebtedness hereby authorized, or under or by reason of the obligations,
covenants or agreements contained in this Indenture or in any of the Securities
or implied therefrom are hereby expressly waived and released as a condition of,
and as a consideration for, the execution of this Indenture and the issue of
such Securities.

                                      * * *











                                       61
<PAGE>


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

         IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be
duly executed, as of the day and year first above written.

                                           MIDAMERCAN ENERGY COMPANY


                                           By:
                                              --------------------------------
                                              Name:
                                              Title:

Attest:
        --------------------------
        Name:
        Title:



                                           -----------------------, as Trustee


                                           By:
                                              --------------------------------
                                              Name:
                                              Title:

Attest:
        --------------------------
        Name:
        Title:








                                       62