YORK INTERNATIONAL CORP /DE/
8-K, 1998-06-02
AIR-COND & WARM AIR HEATG EQUIP & COMM & INDL REFRIG EQUIP
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<PAGE>   1

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    Form 8-K

                                 CURRENT REPORT

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

         Date of Report (Date of earliest event reported): May 28, 1998

                         YORK INTERNATIONAL CORPORATION
             (Exact Name of registrant as specified in its charter)

                                    Delaware
                 (State or other jurisdiction of incorporation)

                 1-10863                                  13-3473472
        (Commission File Number)              (IRS Employer Identification No.)

                            631 South Richland Avenue
                            York, Pennsylvania 17403
                    (Address of principal executive offices)

                                 (717) 771-7890
              (Registrant's telephone number, including area code)

                                       N/A
          (Former Name or Former Address, if Changed Since Last Report)

<PAGE>   2
                                                                               2


Item 5. Other Events

      On July 6, 1995, York International Corporation (the "Company") filed a
Shelf Registration Statement on Form S-3 (the "Registration Statement") with the
Securities and Exchange Commission, thereby registering debt securities and
warrants to purchase debt securities in an aggregate principal amount of up to
$200,000,000. Filed as an exhibit to the Registration Statement was the
statement of eligibility on Form T-1 of The First National Bank of Boston ("Bank
of Boston") as trustee. Also filed as exhibits thereto were the Form of Senior
Indenture, the Form of Senior Subordinated Indenture and the Form of
Subordinated Indenture, each between the Company and Bank of Boston, as trustee.

      State Street Bank and Trust Company ("State Street") purchased
substantially all of the corporate trust assets of Bank of Boston on October 2,
1995. On that date, to the extent permitted by the operative documents, State
Street succeeded Bank of Boston as Trustee under each of the Indentures. On 
May 28, 1998, the Company began an offering (the "Offering"), co-managed by 
Goldman, Sachs & Co. and CIBC Oppenheimer Corp., of $200,000,000 aggregate 
principal amount of a new series of 6.70% Senior Notes due June 1, 2008 (the 
"Notes"). Filed herewith as exhibits in connection with the Offering of the 
Notes are the Senior Indenture executed between the Company and State Street as
trustee, the computation of ratios of earnings to fixed charges and the 
statement of eligibility on Form T-1 of State Street as trustee.

Item 7. Exhibits.

            Senior Indenture, dated as of June 1, 1998, between the Company and
            State Street Bank and Trust Company, as Trustee.

            Computation of Ratio of Earnings to Fixed Charges.

            Statement of Eligibility of State Street Bank and Trust Company as
            Trustee.

<PAGE>   3

                                   SIGNATURES

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

York International Corporation

                                       By: /s/ Robert N. Pokelwaldt
                                           ------------------------------------
                                               Robert N. Pokelwaldt
                                               Chairman of the Board and Chief
                                               Executive Officer

Date:  June 1, 1998

<PAGE>   4
                                                                               4


                                  EXHIBIT INDEX

Exhibit No.             Description

4                 Senior Indenture, dated as of June 1, 1998, between the
                  Company and State Street Bank and Trust Company, as Trustee.

12                Computation of Ratio of Earnings to Fixed Charges.

25                Statement of Eligibility of State Street Bank and Trust
                  Company as Trustee.

<PAGE>   1

                                                                       Exhibit 4

================================================================================

                         YORK INTERNATIONAL CORPORATION

                                       AND

                      STATE STREET BANK AND TRUST COMPANY,

                                   as Trustee

                                Senior Indenture

                            Dated as of June 1, 1998

================================================================================

<PAGE>   2

                             CROSS REFERENCE SHEET*
                                   -----------

      Provisions of Trust Indenture Act of 1939 and Indenture to be dated as of
June 1, 1998 between YORK INTERNATIONAL CORPORATION and STATE STREET BANK AND
TRUST COMPANY, as Trustee:

Section of the Act                  Section of Indenture
- ------------------                  --------------------

3113(a)(1), (2) and (5).............6.9
310(a)(3) and (4)...................Inapplicable
310(b)..............................6.8 and 6.10(a), (b) and (d)
310(c)..............................Inapplicable
311(a)..............................6.13
311(b)..............................6.13
311(c)..............................Inapplicable
312(a)..............................4.1 and 4.2(a)
312(b)..............................4.2(a) and (b)(i) and (ii)
312(c)..............................4.2(c)
313(a)..............................4.4(a)(i), (ii), (iii), (iv), (v), (vi)
                                      and (vii)
313(a)(5)...........................Inapplicable
313(b)(1)...........................Inapplicable
313(b)(2)...........................4.4(b)
313(c)..............................4.4(c)
313(d)..............................4.4(d)
314(a)..............................4.3
314(b)..............................Inapplicable
314(c)(1) and (2)...................11.5
314(c)(3)...........................Inapplicable
314(d)..............................Inapplicable
314(e)..............................11.5
314(f)..............................Inapplicable
315(a), (c) and (d).................6.1
315(b)..............................5.8
315(e)..............................5.9
316(a)(1)...........................5.7
316(a)(2)...........................Not required
316(a) (last sentence)..............7.4
316(b)..............................5.4
317(a)..............................5.2
317(b)..............................3.5(a)
318(a)..............................11.7

- ----------
*This Cross Reference Sheet is not part of the Indenture.

<PAGE>   3

                                TABLE OF CONTENTS

                                  ARTICLE ONE
                                  DEFINITIONS..............................  1
       SECTION 1.1  Definitions............................................  1
       Affiliate      .....................................................  2
       Attributable Debt...................................................  2
       Authenticating Agent................................................  2
       Board Resolution....................................................  2
       Business Day   .....................................................  2
       Commission     .....................................................  2
       Corporate Trust Office..............................................  3
       Debt           .....................................................  3
       Default        .....................................................  3
       Depositary     .....................................................  3
       Dollars        .....................................................  3
       $              .....................................................  3
       Exchange Act   .....................................................  3
       Event of Default....................................................  3
       Funded Debt    .....................................................  3
       GAAP           .....................................................  3
       Global Security.....................................................  3
       Holder         .....................................................  3
       Holder of Securities................................................  3
       Securityholder .....................................................  3
       Indenture      .....................................................  3
       interest       .....................................................  4
       Issuer         .....................................................  4
       Issuer Order   .....................................................  4
       Lien           .....................................................  4
       Officers' Certificate...............................................  4
       Opinion of Counsel..................................................  4
       original issue date.................................................  4
       original issue discount.............................................  4
       Original Issue Discount Security....................................  5
       Outstanding    .....................................................  5
       Periodic Offering...................................................  5
       Person         .....................................................  5
       Place of Payment....................................................  6
       principal      .....................................................  6
       principal amount....................................................  6
       record date    .....................................................  6
       Responsible Officer.................................................  6
       Restricted Subsidiary...............................................  6
       Sale and Lease-Back Transaction.....................................  6
       Securities Act .....................................................  6

<PAGE>   4

                                                                          Page
                                                                          ----

       Security       .....................................................  6
       Securities     .....................................................  6
       Shareholders' Equity in the Issuer and its Consolidated Subsidiaries  7
       Stated Maturity.....................................................  7
       Subsidiary     .....................................................  7
       Trust Indenture Act of 1939.........................................  7
       Trustee        .....................................................  7
       U.S. Government Obligations.........................................  7
       vice president .....................................................  7
       Yield to Maturity...................................................  7

                                  ARTICLE TWO
                                  SECURITIES...............................  7
       SECTION 2.1  Forms Generally........................................  7
       SECTION 2.2  Form of Trustee's Certificate of Authentication........  8
       SECTION 2.3  Amount Unlimited, Issuable in Series...................  9
       SECTION 2.4  Authentication and Delivery of Securities.............. 11
       SECTION 2.5  Execution of Securities................................ 14
       SECTION 2.6  Certificate of Authentication.......................... 14
       SECTION 2.7  Denomination and Date of Securities; Payments
                      of Interest.......................................... 15
       SECTION 2.8  Registration Transfer and Exchange..................... 15
       SECTION 2.9  Mutilated, Defaced, Destroyed, Lost and Stolen
                      Securities........................................... 18
       SECTION 2.10 Cancellation of Securities; Disposition Thereof........ 18
       SECTION 2.11 Temporary Securities................................... 19
       SECTION 2.12 CUSIP Numbers.......................................... 19

                                 ARTICLE THREE
                            COVENANTS OF THE ISSUER........................ 19
       SECTION 3.1  Payment of Principal and Interest...................... 19
       SECTION 3.2  Maintenance of Office or Agency for Notices and
                      Demands.............................................. 20
       SECTION 3.3  Officers' Annual Compliance Certificate Filed with
                      the Trustee.......................................... 20
       SECTION 3.4  Corporate Existence.................................... 20
       SECTION 3.5  Payment of Taxes and Other Claims...................... 20
       SECTION 3.6  Limitation on Liens.................................... 21
       SECTION 3.7  Limitation on Sale and Lease-Back Transactions......... 22

                                 ARTICLE FOUR
                   SECURITYHOLDERS LISTS AND REPORTS BY THE
                            ISSUER AND THE TRUSTEE......................... 23
       SECTION 4.1  Issuer to Furnish Trustee Information as to Names and
                      Addresses of Securityholders......................... 23
       SECTION 4.2  Preservation and Disclosure of Securityholders Lists... 23
       SECTION 4.3  Reports by the Issuer.................................. 25
       SECTION 4.4  Reports by the Trustee................................. 25


                                      -ii-

<PAGE>   5

                                                                          Page
                                                                          ----

                                  ARTICLE FIVE
                  REMEDIES OF THE TRUSTEE AND SECURITY HOLDERS
                               ON EVENT OF DEFAULT......................... 27
       SECTION 5.1  Events of Default...................................... 27
       SECTION 5.2  Payment of Securities on Default; Suit Therefor........ 29
       SECTION 5.3  Application of Moneys Collected by Trustee............. 30
       SECTION 5.4  Proceedings by Securityholders......................... 31
       SECTION 5.5  Proceedings by Trustee................................. 32
       SECTION 5.6  Remedies Cumulative and Continuing..................... 32
       SECTION 5.7  Direction of Proceedings; Waiver of Defaults by
                      Majority of Securityholders.......................... 32
       SECTION 5.8  Notice of Defaults..................................... 33
       SECTION 5.9  Undertaking to Pay Costs............................... 33

                                  ARTICLE SIX
                            CONCERNING THE TRUSTEE......................... 34
       SECTION 6.1  Duties and Responsibilities of the Trustee;
                      During Default; Prior to Default..................... 34
       SECTION 6.2  Certain Rights of the Trustee.......................... 35
       SECTION 6.3  Trustee Not Responsible for Recitals, Disposition of
                      Securities or Application of Proceeds Thereof........ 36
       SECTION 6.4  Trustee and Agents May Hold Securities;
                      Collections, etc..................................... 36
       SECTION 6.5  Moneys Held by Trustee................................. 36
       SECTION 6.6  Compensation and Indemnification of Trustee and
                      Its Prior Claim...................................... 37
       SECTION 6.7  Right of Trustee to Rely on Officers' Certificate, etc. 37
       SECTION 6.8  Qualification of Trustee; Conflicting Interests........ 38
       SECTION 6.9  Persons Eligible for Appointment as Trustee;
                      Different Trustees for Different Series.............. 38
       SECTION 6.10 Resignation and Removal; Appointment of
                      Successor Trustee.................................... 38
       SECTION 6.11 Acceptance of Appointment by Successor Trustee......... 40
       SECTION 6.12 Merger, Conversion, Consolidation or Succession
                     to Business of Trustee................................ 41
       SECTION 6.13 Preferential Collection of Claims Against the Issuer... 41
       SECTION 6.14 Appointment of Authenticating Agent.................... 41

                                 ARTICLE SEVEN
                        CONCERNING THE SECURITYHOLDERS..................... 42
       SECTION 7.1  Evidence of Action Taken by Securityholders............ 42
       SECTION 7.2  Proof of Execution of Instruments and of Holding
                      of Securities........................................ 42
       SECTION 7.3  Holders to be Treated as Owners........................ 43
       SECTION 7.4  Securities Owned by Issuer Deemed Not Outstanding...... 43
       SECTION 7.5  Right of Revocation of Action Taken.................... 43
       SECTION 7.6  Record Date for Consents and Waivers................... 44


                                      -iii-

<PAGE>   6

                                                                          Page
                                                                          ----

                                  ARTICLE EIGHT
                            SUPPLEMENTAL INDENTURES........................ 44
       SECTION 8.1  Supplemental Indentures Without Consent of
                      Securityholders...................................... 44
       SECTION 8.2  Supplemental Indentures with Consent of
                      Securityholders...................................... 46
       SECTION 8.3  Effect of Supplemental Indenture....................... 48
       SECTION 8.4  Documents to Be Given to Trustee....................... 48
       SECTION 8.5  Notation on Securities in Respect of
                      Supplemental Indentures.............................. 48

                                  ARTICLE NINE
                                  SUCCESSORS............................... 48
       SECTION 9.1  When Issuer May Merge, etc. ........................... 48
       SECTION 9.2  Successor Corporation Substituted...................... 49

                                   ARTICLE TEN
                    SATISFACTION AND DISCHARGE OF INDENTURE;
                     COVENANT DEFEASANCE; UNCLAIMED MONEYS................. 49
       SECTION 10.1  Satisfaction and Discharge of Indenture; Covenant
                      Defeasance........................................... 49
       SECTION 10.2  Application by Trustee of Funds Deposited for
                      Payment of Securities................................ 52
       SECTION 10.3  Repayment of Moneys Held by Paying Agent.............. 53
       SECTION 10.4  Return of Moneys Held by Trustee and Paying Agent
                      Unclaimed for Two Years.............................. 53
       SECTION 10.5  Indemnity for U.S. Government Obligations............. 53

                                 ARTICLE ELEVEN
                           MISCELLANEOUS PROVISIONS........................ 53
       SECTION 11.1  Partners, Incorporators, Stockholders, Officers and
                      Directors of Issuer Exempt from Individual Liability. 53
       SECTION 11.2  Provisions of Indenture for the Sole Benefit of
                      Parties and Holders of Securities.................... 54
       SECTION 11.3  Successors and Assigns of Issuer Bound by Indenture... 54
       SECTION 11.4  Notices and Demands on Issuer, Trustee and Holders of
                      Securities........................................... 54
       SECTION 11.5  Officers' Certificates and Opinions of Counsel;
                      Statements to Be Contained Therein................... 54
       SECTION 11.6  Payments Due on Saturdays, Sundays and Holidays....... 55
       SECTION 11.7  Conflict of Any Provision of Indenture with
                      Trust Indenture Act of 1939.......................... 56
       SECTION 11.8  GOVERNING LAW......................................... 56
       SECTION 11.9  Counterparts.......................................... 56
       SECTION 11.10  Effect of Headings................................... 56


                                      -iv-

<PAGE>   7

                                                                          Page
                                                                          ----

                                 ARTICLE TWELVE
                  REDEMPTION OF SECURITIES AND SINKING FUNDS............... 56
       SECTION 12.1  Applicability of Article.............................. 56
       SECTION 12.2  Notice of Redemption; Partial Redemptions............. 56
       SECTION 12.3  Payment of Securities Called for Redemption........... 57
       SECTION 12.4  Exclusion of Certain Securities from Eligibility
                      for Selection for Redemption......................... 58
       SECTION 12.5  Mandatory and Optional Sinking Funds.................. 58


                                       -v-

<PAGE>   8

      THIS SENIOR INDENTURE, dated as of June 1, 1998 between YORK INTERNATIONAL
CORPORATION, a Delaware corporation (the "Issuer"), and STATE STREET BANK AND
TRUST COMPANY, a Massachusetts chartered trust company, as trustee (the
"Trustee").

                              W I T N E S S E T H :

      WHEREAS, the Issuer has duly authorized the issuance from time to time of
its unsecured debentures, notes or other evidences of indebtedness to be issued
in one or more series (the "Securities") up to such principal amount or amounts
as may from time to time be authorized in accordance with the terms of this
Indenture;

      WHEREAS, the Issuer has duly authorized the execution and delivery of this
Indenture to provide, among other things, for the authentication, delivery and
administration of the Securities; and

      WHEREAS, all things necessary to make this Indenture a valid indenture and
agreement according to its terms have been undertaken and completed;

      NOW, THEREFORE:

      In consideration of the premises and the purchases of the Securities by
the Holders (as hereinafter defined) thereof, the Issuer and the Trustee
mutually covenant and agree for the equal and proportionate benefit of the
respective Holders from time to time of the Securities as follows:

                                  ARTICLE ONE
                                  DEFINITIONS

      SECTION 1.1 Definitions. For all purposes of this Indenture and of any
indenture supplemental hereto the following terms shall have the respective
meanings specified in this Section 1.1 (except as otherwise expressly provided
herein or in any indenture supplemental hereto or unless the context otherwise
clearly requires). All other terms used in this Indenture that are defined in
the Trust Indenture Act of 1939, including terms defined therein by reference to
the Securities Act (as hereinafter defined), shall have the meanings assigned to
such terms in said Trust Indenture Act of 1939 and in said Securities Act as in
force at the date of this Indenture (except as otherwise expressly provided
herein or in any indenture supplemental hereto or unless the context otherwise
clearly requires).

      All accounting terms used herein and not expressly defined shall have the
meanings assigned to such terms in accordance with GAAP (as hereinafter
defined).

<PAGE>   9
                                                                               2


      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. The expressions "date of this Indenture", "date
hereof", "date as of which this Indenture is dated" and "date of execution and
delivery of this Indenture" and other expressions of similar import refer to the
effective date of the original execution and delivery of this Indenture, viz.
as of June 1, 1998.

      The terms defined in this Article have the meanings assigned to them in
this Article and include the plural as well as the singular.

      "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.

      "Attributable Debt" means, with respect to any particular series of
Securities and as of any particular time, the present value, discounted at a
rate per annum equal to the interest rate borne by the Securities of such series
(or, in the case of Original Issue Discount Securities, the Yield to Maturity),
of the obligation of a lessee for rental payments (not including amounts payable
by the lessee for maintenance, property taxes and insurance) during the
remaining term of any lease (including any period for which such lease has been
extended or may, at the option of the lessor, be extended).

      "Authenticating Agent" shall have the meaning set forth in Section 6.14.

      "Bankruptcy Law" means Title 11, United States Code or any similar Federal
or state law for the relief of debtors.

      "Board Resolution" means one or more resolutions, certified by the
secretary or an assistant secretary of the Issuer to have been duly adopted or
consented to by the Board of Directors and to be in full force and effect, and
delivered to the Trustee.

      "Business Day" means, with respect to any Security, unless otherwise
specified in a Board Resolution and an Officers Certificate with respect to a
particular series of Securities, a day that (a) in the Place of Payment (or in
any of the Places of Payment, if more than one) in which amounts are payable, as
specified in the form of such Security, and (b) in the city in which the
Corporate Trust Office is located, is not a day on which banking institutions
are authorized or required by law or regulation to close.

      "Commission" means the Securities and Exchange Commission, as from time to
time constituted, created under the Exchange Act or, if at any time after the
execution and delivery of this Indenture such Commission is not existing and
performing the duties now assigned to it under the Trust Indenture Act of 1939,
then the body performing such duties on such date.

<PAGE>   10
                                                                               3


      "Corporate Trust Office" means the office of the Trustee at which the
corporate trust business of the Trustee shall, at any particular time, be
principally administered, which office is, at the date as of which this
Indenture is dated, located in Boston, Massachusetts.

      "Debt" means indebtedness for borrowed money.

      "Default" means any event which is, or after the giving of notice or
passage of time or both would be, an Event of Default.

      "Depositary" means, with respect to the Securities of any series issuable
or issued in the form of one or more Global Securities, the Person designated as
Depositary by the Issuer pursuant to Section 2.3 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 Global Securities of such series.

      "Dollars" and the sign "$" means the coin and currency of the United
States of America as at the time of payment is legal tender for the payment of
public and private debts.

      "Exchange Act" means the Securities Exchange Act of 1934, as amended.

      "Event of Default" means any event or condition specified as such in
Section 5.1.

      "Funded Debt" means Debt which by its terms matures at, or is extendible
or renewable at the option of the obligor to, a date more than twelve months
after the date of the creation of such Debt, including but not limited to,
outstanding revolving credit loans.

      "GAAP" means generally accepted accounting principles set forth in the
opinions and pronouncements of the Accounting Principles Board of the American
Institute of Certified Public Accountants and statements and pronouncements of
the Financial Accounting Standards Board or in such other statements by such
other entity as may be approved by a significant segment of the accounting
profession, consistently applied, which are applicable to the circumstances as
of the date of determination.

      "Global Security" means a Security evidencing all or a part of a series of
Securities issued to the Depositary for such series in accordance with Section
2.3 and bearing the legend prescribed in Section 2.4.

      "Holder", "Holder of Securities", "Securityholder" or other similar terms
mean, in the case of any Security, the Person in whose name such Security is
registered in the security register kept by the Issuer for that purpose in
accordance with the terms hereof.

      "Indenture" means this instrument as originally executed and delivered or,
if amended or supplemented as herein provided, as so amended or supplemented or
both, including, for all purposes of this instrument and any such supplement,
the provisions of the Trust Indenture

<PAGE>   11
                                                                               4


Act of 1939 that are deemed to be a part of and govern this instrument and any
such supplement, respectively, and shall include the forms and terms of
particular series of Securities established as contemplated hereunder.

      "interest" means, when used with respect to non-interest bearing
Securities (including, without limitation, any Original Issue Discount Security
that by its terms bears interest only after maturity or upon default in any
other payment due on such Security), interest payable after maturity (whether at
stated maturity, upon acceleration or redemption or otherwise) or after the
date, if any, on which the Issuer becomes obligated to acquire a Security,
whether upon conversion, by purchase or otherwise.

      "Issuer" means York International Corporation, a Delaware corporation,
and, subject to Article Nine, its successors and assigns.

      "Issuer Order" means a written statement, request or order of the Issuer
which is signed in its name by the chairman of the Board of Directors, the
president or any vice president of the Issuer, and delivered to the Trustee.

      "Lien" means any mortgage, lien, pledge, security interest, conditional
sale or other title retention agreement or other security interest or
encumbrance of any kind (including any agreement to give any security interest).

      "Officers' Certificate", when used with respect to the Issuer, means a
certificate signed by the chairman of the Board of Directors, the president, or
any vice president and by the treasurer, any assistant treasurer, the
controller, any assistant controller, the secretary or any assistant secretary
of the Issuer. Each such certificate shall include the statements provided for
in Section 11.5 if and to the extent required by the provisions of such Section
11.5. One of the officers signing an Officers' Certificate given pursuant to
Section 4.3 shall be the principal executive, financial or accounting officer of
the Issuer.

      "Opinion of Counsel" means an opinion in writing signed by the chief
counsel of the Issuer or by such other legal counsel who may be an employee of
or counsel to the Issuer and who shall be reasonably satisfactory to the
Trustee. Each such opinion shall include the statements provided for in Section
11.5, if and to the extent required by the provisions of such Section 11.5.

      "original issue date" of any Security (or portion thereof) means the
earlier of (a) the date of such Security or (b) the date of any Security (or
portion thereof) for which such Security was issued (directly or indirectly) on
registration of transfer, exchange or substitution.

      "original issue discount" of any debt security, including any Original
Issue Discount Security, means the difference between the principal amount of
such debt security and the initial issue price of such debt security (as set
forth in the case of an Original Issue Discount Security on the face of such
Security).

<PAGE>   12
                                                                               5


       "Original Issue Discount Security" means any Security that 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 Article Five.

      "Outstanding", when used with reference to Securities, shall, subject to
the provisions of Section 7.4, mean, as of any particular time, all Securities
authenticated and delivered by the Trustee under this Indenture, except:

            (a) Securities theretofore cancelled by the Trustee or delivered to
      the Trustee for cancellation;

            (b) Securities (other than Securities of any series as to which the
      provisions of Article Ten hereof shall not be applicable), or portions
      thereof, for the payment or redemption of which moneys or U.S. Government
      Obligations (as provided for in Section 10.1) in the necessary amount
      shall have been deposited in trust with the Trustee or with any paying
      agent (other than the Issuer) or shall have been set aside, segregated and
      held in trust by the Issuer for the Holders of such Securities (if the
      Issuer shall act as its own paying agent), provided that, if such
      Securities, or portions thereof, are to be redeemed prior to the maturity
      thereof, notice of such redemption shall have been given as herein
      provided, or provision satisfactory to the Trustee shall have been made
      for giving such notice; and

            (c) Securities which shall have been paid or in substitution for
      which other Securities shall have been authenticated and delivered
      pursuant to the terms of Section 2.9 (except with respect to any such
      Security as to which proof satisfactory to the Trustee is presented that
      such Security is held by a Person in whose hands such Security is a legal,
      valid and binding obligation of the Issuer).

      In determining whether the Holders of the requisite aggregate principal
amount of Outstanding Securities of any or all series have given any request,
demand, authorization, direction, notice, consent or waiver hereunder, the
principal amount of an Original Issue Discount Security that shall be deemed to
be Outstanding for such purposes shall be the portion of the principal amount
thereof that would be due and payable as of the date of such determination (as
certified by the Issuer to the Trustee) upon a declaration of acceleration of
the maturity thereof pursuant to Article Five.

      "Periodic Offering" means an offering of Securities of a series from time
to time, the specific terms of which Securities, including, without limitation,
the rate or rates of interest, if any, thereon, the stated maturity or
maturities thereof and the redemption provisions, if any, with respect thereto,
are to be determined by the Issuer or its agents upon the issuance of such
Securities.

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

<PAGE>   13
                                                                               6


      "Place of Payment", when used with respect to the Securities of any
series, means the place or places where the principal of and interest, if any,
on the Securities of such series are payable as determined in accordance with
Section 2.3.

      "principal" of a debt security, including any Security, means the amount
(including, without limitation, if and to the extent applicable, any premium
and, in the case of an Original Issue Discount Security, any accrued original
issue discount, but excluding interest) that is payable with respect to such
debt security as of any date and for any purpose (including, without limitation,
in connection with any sinking fund, if any, upon any redemption at the option
of the Issuer, upon any purchase or exchange at the option of the Issuer or the
holder of such debt security and upon any acceleration of the maturity of such
debt security).

      "principal amount" of a debt security, including any Security, means the
principal amount as set forth on the face of such debt security.

      "Principal Property" means all property, assets or revenue of the Issuer
and of each Restricted Subsidiary now owned or hereafter acquired and all shares
of stock and Debt of any Restricted Subsidiary now owned or hereafter acquired.

      "record date" shall have the meaning set forth in Section 2.7.

      "Responsible Officer", when used with respect to the Trustee, means any
officer of the Trustee with direct responsibility for the administration of this
Indenture.

      "Restricted Subsidiary" means any Subsidiary organized and existing under
the laws of the United States of America, Canada or Mexico, including any branch
of any such Subsidiary whether such branch is located in the United States of
America, Canada, Mexico or any other country.

      "Sale and Lease-Back Transaction" means an arrangement with any Person
providing for the leasing by the Issuer or any Subsidiary of any property, title
to which property has been or is to be sold or transferred by the Issuer or such
Subsidiary to such Person; provided, however, that the term Sale and Lease-Back
Transaction shall not include any arrangement with the United States of America,
any of its territories or possessions, or any State thereof, or any department,
agency, instrumentality or political subdivision of any thereof, or any
department, agency or instrumentality of any such political subdivision, entered
into for the purpose of financing all or any part of the purchase price or the
cost of constructing or improving the property subject to such arrangement.

      "Securities Act" means the Securities Act of 1933, as amended.

      "Security" or "Securities" has the meaning stated in the first recital of
this Indenture or, as the case may be, Securities that have been authenticated
and delivered pursuant to this Indenture.

<PAGE>   14
                                                                               7


      "Shareholders' Equity in the Issuer and its Consolidated Subsidiaries"
means the consolidated capital stock, capital surplus, if any, and retained
earnings of the Issuer and its consolidated Subsidiaries, after deducting the
cost of shares of the Issuer held in its treasury.

      "Stated Maturity", when used with respect to any Security or any
installment of interest thereon, shall mean the date specified in such Security
as the fixed date on which the principal of such Security or such installment of
interest is due and payable.

      "Subsidiary" means, with respect to any Person, any corporation or other
entity of which a majority of the total voting power of the voting stock
outstanding is, or other ownership interests having voting power under ordinary
circumstances with the power to elect a majority of the board of directors or
other Persons performing similar functions are, at the time directly or
indirectly owned by such Person. Unless otherwise indicated, "Subsidiary" shall
refer only to Subsidiaries of the Issuer.

      "Trust Indenture Act of 1939" (except as otherwise provided in Sections
8.1 and 8.2) means the Trust Indenture Act of 1939, as amended by the Trust
Indenture Reform Act of 1990, as in force at the date as of which this Indenture
is originally executed.

      "Trustee" means the Person identified as "Trustee" in the first paragraph
hereof and, subject to the provisions of Article Six, shall also include any
successor trustee. "Trustee" shall also 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 the Securities of such series.

      "U.S. Government Obligations" shall have the meaning set forth in Section
10.1(B).

      "vice president," when used with respect to the Issuer or the Trustee,
means any vice president, regardless of whether designated by a number or a word
or words added before or after the title "vice president."

      "Yield to Maturity" means the yield to maturity on a series of Securities,
calculated at the time of issuance of such series, or, if applicable, at the
most recent redetermination of interest on such series, and calculated in
accordance with generally accepted financial practice or as otherwise provided
in the terms of such series of Securities.

                                   ARTICLE TWO
                                   SECURITIES

      SECTION 2.1 Forms Generally. The Securities of each series shall be
substantially in such form (not inconsistent with this Indenture) as shall be
established by or pursuant to one or more Board Resolutions (as set forth in a
Board Resolution or, to the extent established pursuant to rather than set forth
in a Board Resolution, an Officers' Certificate detailing such establishment) or
in one or more indentures supplemental hereto, in each case with such
appropriate insertions, omissions, substitutions and other variations as are
required

<PAGE>   15
                                                                               8


or permitted by this Indenture, and may have imprinted or otherwise reproduced
thereon such legend or legends or endorsements, not inconsistent with the
provisions of this Indenture, as may be required to comply with any law or with
any rules or regulations pursuant thereto, or with any rules of any securities
exchange or to conform to general usage, all as may be determined by the
officers executing such Securities, as evidenced by their execution of such
Securities.

      The definitive Securities shall be printed, lithographed or engraved on
steel engraved borders or may be produced in any other manner, all as determined
by the officers executing such Securities as evidenced by their execution of
such Securities.

      SECTION 2.2 Form of Trustee's Certificate of Authentication. The Trustee's
certificate of authentication on all Securities shall be substantially as
follows:

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

                              STATE STREET BANK AND TRUST COMPANY, as Trustee


                              By___________________________________________
                                     Authorized Signatory

      If at any time there shall be an Authenticating Agent appointed with
respect to any series of Securities, then the Securities of such series shall
bear, in addition to the Trustee's certificate of authentication, an alternate
Certificate of Authentication which shall be substantially as follows:

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

                              STATE STREET BANK AND TRUST COMPANY, as Trustee

                                                                             
                              By __________________________________________  
                                      as Authenticating Agent                
                                                                             

                              By _______________________________             
                                      Authorized Signatory                   
<PAGE>   16
                                                                               9


      SECTION 2.3 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 and the Securities of
each such series shall rank equally and pari passu with the Securities of each
other series and with all other unsecured and unsubordinated debt of the Issuer.
There shall be established in or pursuant to one or more Board Resolutions (and,
to the extent established pursuant to rather than set forth in a Board
Resolution, in an Officers' Certificate detailing such establishment) or
established in one or more indentures supplemental hereto, prior to the initial
issuance of Securities of any series:

            (1) the designation of the Securities of the series, which shall
      distinguish the Securities of such series from the Securities of all other
      series;

            (2) any limit upon the aggregate principal amount of the Securities
      of the series that 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 the
      series pursuant to Section 2.8, 2.9, 2.11, 8.5 or 12.3);

            (3) the date or dates on which the principal of the Securities of
      the series is payable;

            (4) the rate or rates at which the Securities of the series shall
      bear interest, if any, the date or dates from which any such interest
      shall accrue, on which any such interest shall be payable and on which a
      record shall be taken for the determination of Holders to whom any such
      interest is payable or the method by which such rate or rates or date or
      dates shall be determined or both;

            (5) the place or places where and the manner in which the principal
      of, premium, if any, and interest, if any, on Securities of the series
      shall be payable (if other than as provided in Section 3.2) and the office
      or agency for the Securities of the series maintained by the Issuer
      pursuant to Section 3.2;

            (6) the right, if any, of the Issuer to redeem, purchase or repay
      Securities of the series, in whole or in part, at its option and the
      period or periods within which, the price or prices (or the method by
      which such price or prices shall be determined or both) at which, the form
      or method of payment therefor if other than in cash and any terms and
      conditions upon which and the manner in which (if different from the
      provisions of Article Twelve) Securities of the series may be so redeemed,
      purchased or repaid, in whole or in part, pursuant to any sinking fund or
      otherwise;

            (7) the obligation, if any, of the Issuer to redeem, purchase or
      repay Securities of the series in whole or in part pursuant to any
      mandatory redemption, sinking fund or analogous provisions or at the
      option of a Holder thereof and the period or periods within which the
      price or prices (or the method by which such price or prices shall be

<PAGE>   17
                                                                              10


      determined or both) at which, the form or method of payment therefor if
      other than in cash and any terms and conditions upon which and the manner
      in which (if different from the provisions of Article Twelve) Securities
      of the series shall be redeemed, purchased or repaid, in whole or in part,
      pursuant to such obligation;

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

            (9) if other than the principal amount thereof, the portion of the
      principal amount of Securities of the series which shall be payable upon
      acceleration of the maturity thereof;

            (10) whether Securities of the series will be issuable as Global
      Securities;

            (11) if the Securities of such series are to be issuable in
      definitive form (whether upon original issue or upon exchange of a
      temporary Security of such series) only upon receipt of certain
      certificates or other documents or satisfaction of other conditions, the
      form and terms of such certificates, documents or conditions;

            (12) any trustees, depositaries, authenticating or paying agents,
      transfer agents or registrars or any other agents with respect to the
      Securities of such series;

            (13) any deleted, modified or additional events of default or
      remedies or any additional covenants with respect to the Securities of
      such series;

            (14) whether the provisions of Section 10.1(C) will be applicable to
      Securities of such series;

            (15) any provision relating to the issuance of Securities of such
      series at an original issue discount (including, without limitation, the
      issue price thereof, the rate or rates at which such original issue
      discount shall accrete, if any, and the date or dates from or to which or
      period or periods during which such original issue discount shall accrete
      at such rate or rates);

            (16) if other than Dollars, the foreign currency in which payment of
      the principal of, premium, if any, and interest, if any, on the Securities
      of such series shall be payable;

            (17) if other than State Street Bank and Trust Company is to act as
      Trustee for the Securities of such series, the name and Corporate Trust
      Office of such Trustee;

            (18) if the amounts of payments of principal of, premium, if any,
      and interest, if any, on the Securities of such series are to be
      determined with reference to an index, the manner in which such amounts
      shall be determined; and

<PAGE>   18
                                                                              11


            (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 by or pursuant to the
Board Resolution or Officers' Certificate referred to above or as set forth in
any such indenture supplemental hereto. All Securities of any one series need
not be issued at the same time and may be issued from time to time, consistent
with the terms of this Indenture, if so provided by or pursuant to such Board
Resolution, such Officers' Certificate or in any such indenture supplemental
hereto.

      Any such Board Resolution or Officers' Certificate referred to above with
respect to Securities of any series filed with the Trustee on or before the
initial issuance of the Securities of such series shall be incorporated herein
by reference with respect to Securities of such series and shall thereafter be
deemed to be a part of the Indenture for all purposes relating to Securities of
such series as fully as if such Board Resolution or Officers' Certificate were
set forth herein in full.

      SECTION 2.4 Authentication and Delivery of Securities. The Issuer may
deliver Securities of any series executed by the Issuer to the Trustee for
authentication together with the applicable documents referred to below in this
Section 2.4, and the Trustee shall thereupon authenticate and deliver such
Securities to, or upon the order of, the Issuer (contained in the Issuer Order
referred to below in this Section 2.4) or pursuant to such procedures acceptable
to the Trustee and to such recipients as may be specified from time to time by
an Issuer Order. The maturity date, original issue date, interest rate, if any,
and any other terms of the Securities of such series shall be determined by or
pursuant to such Issuer Order and procedures. If provided for in such procedures
and agreed to by the Trustee, such Issuer Order may authorize authentication and
delivery pursuant to oral instructions from the Issuer or its duly authorized
agent, which instructions shall be promptly confirmed in writing. In
authenticating the Securities of such series and accepting the additional
responsibilities under this Indenture in relation to such Securities, the
Trustee shall be entitled to receive (in the case of subparagraphs (2), (3) and
(4) below only at or before the time of the first request of the Issuer to the
Trustee to authenticate Securities of such series) and (subject to Section 6.1)
shall be fully protected in relying upon, unless and until such documents have
been superseded or revoked:

            (1) an Issuer Order requesting such authentication and setting forth
      delivery instructions if the Securities of such series are not to be
      delivered to the Issuer, provided that, with respect to Securities of a
      series subject to a Periodic Offering, (a) such Issuer Order may be
      delivered by the Issuer to the Trustee prior to the delivery to the
      Trustee of such Securities for authentication and delivery, (b) the
      Trustee shall authenticate and deliver Securities of such series for
      original issue from time to time, in an aggregate principal amount not
      exceeding the aggregate principal amount established for such series,
      pursuant to an Issuer Order or pursuant to procedures acceptable to the
      Trustee as may be specified from time to time by an Issuer Order, (c) the
      maturity date or dates, original issue date or dates, interest rate or
      rates, if any,

<PAGE>   19
                                                                              12


      and any other terms of Securities of such series shall be determined by an
      Issuer Order or pursuant to such procedures, (d) if provided for in such
      procedures, such Issuer Order may authorize authentication and delivery
      pursuant to oral or electronic instructions from the Issuer or its duly
      authorized agent or agents, which oral instructions shall be promptly
      confirmed in writing and (e) after the original issuance of the first
      Security of such series to be issued, any separate request by the Issuer
      that the Trustee authenticate Securities of such series for original
      issuance will be deemed to be a certification by the Issuer that it is in
      compliance with all conditions precedent provided for in this Indenture
      relating to the authentication and delivery of such Securities;

            (2) the Board Resolution, Officers' Certificate or executed
      supplemental indenture referred to in Sections 2.1 and 2.3 by or pursuant
      to which the forms and terms of the Securities of such series were
      established;

            (3) an Officers' Certificate setting forth the form or forms and
      terms of the Securities stating that the form or forms and terms of the
      Securities have been established pursuant to Sections 2.1 and 2.3 and
      comply with this Indenture and covering such other matters as the Trustee
      may reasonably request; and

            (4) at the option of the Issuer, either an Opinion of Counsel, or a
      letter from legal counsel addressed to the Trustee permitting it to rely
      on an Opinion of Counsel, substantially to the effect that:

                  (a) the form or forms of the Securities of such series have
            been duly authorized and established in conformity with the
            provisions of this Indenture;

                  (b) in the case of an underwritten offering, the terms of the
            Securities of such series have been duly authorized and established
            in conformity with the provisions of this Indenture, and, in the
            case of an offering that is not underwritten, certain terms of the
            Securities of such series have been established pursuant to a Board
            Resolution, an Officers' Certificate or a supplemental indenture in
            accordance with this Indenture, and when such other terms as are to
            be established pursuant to procedures set forth in an Issuer Order
            shall have been established, all such terms will have been duly
            authorized by the Issuer and will have been established in
            conformity with the provisions of this Indenture;

                  (c) when the Securities of such series have been executed by
            the Issuer and authenticated by the Trustee in accordance with the
            provisions of this Indenture and delivered to and duly paid for by
            the purchasers thereof, they will have been duly issued under this
            Indenture and will be valid and legally binding obligations of the
            Issuer, enforceable in accordance with their respective terms, and
            will be entitled to the benefits of this Indenture; and

<PAGE>   20
                                                                              13


                  (d) the execution and delivery by the Issuer of, and the
            performance by the Issuer of its obligations under, the Securities
            of such series will not contravene any provision of applicable law
            or the articles of incorporation or bylaws of the Issuer or any
            agreement or other instrument binding upon the Issuer or any of its
            Subsidiaries that is material to the Issuer and its Subsidiaries,
            considered as one enterprise, or, to such counsel's knowledge after
            the inquiry indicated therein, any judgment, order or decree of any
            governmental agency or any court having jurisdiction over the Issuer
            or any Subsidiary, and no consent, approval or authorization of any
            governmental body or agency is required for the performance by the
            Issuer of its obligations under the Securities, except such as are
            specified and have been obtained and such as may be required by the
            securities or blue sky laws of the various states in connection with
            the offer and sale of the Securities.

      In addition, if the authentication and delivery relates to a new series of
Securities created by an indenture supplemental hereto, such Opinion of Counsel
shall also state that all laws and requirements with respect to the form and
execution by the Issuer of the supplemental indenture with respect to the series
of Securities have been complied with, the Issuer has corporate power to execute
and deliver any such supplemental indenture and has taken all necessary
corporate action for those purposes and any such supplemental indenture has been
executed and delivered and constitutes the legal, valid and binding obligation
of the Issuer enforceable in accordance with its terms (subject, as to
enforcement of remedies, to applicable bankruptcy, reorganization, insolvency,
moratorium or other laws and legal principles affecting creditors' rights
generally from time to time in effect and to general equitable principles
whether applied in an action at law or in equity).

      In rendering such opinions, such counsel may qualify any opinions as to
enforceability by stating that such enforceability may be limited by bankruptcy,
insolvency, reorganization, liquidation, moratorium and other similar laws
affecting the rights and remedies of creditors and is subject to general
principles of equity (regardless of whether such enforceability is considered in
a proceeding in equity or at law). Such counsel may rely, as to all matters
governed by the laws of jurisdictions other than the State of Delaware and the
federal law of the United States, upon opinions of other counsel (copies of
which shall be delivered to the Trustee), who shall be counsel reasonably
satisfactory to the Trustee, in which case the opinion shall state that such
counsel believes that both such counsel and the Trustee are entitled so to rely.
Such counsel may also state that, insofar as such opinion involves factual
matters, such counsel has relied, to the extent such counsel deems proper, upon
certificates of officers of the Issuer and its Subsidiaries and certificates of
public officials.

      The Trustee shall have the right to decline to authenticate and deliver
any Securities of any series under this Section 2.4 if the Trustee, being
advised by counsel, determines that such action may not lawfully be taken by the
Issuer or if the Trustee in good faith by its board of directors or board of
trustees, executive committee or a trust committee of directors or trustees or
Responsible Officers shall determine that such action would expose the Trustee
to personal liability to existing Holders or would adversely affect the
Trustee's own rights, duties or immunities under the Securities, this Indenture
or otherwise.

<PAGE>   21
                                                                              14


      If the Issuer shall establish pursuant to Section 2.3 that the Securities
of a series are to be issued in the form of one or more Global Securities, then
the Issuer shall execute and the Trustee shall, in accordance with this Section
2.4 and the Issuer 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 to be issued in the form of Global Securities and not yet cancelled,
(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 Depositary or any
such nominee to a successor Depositary or a nominee of such successor
Depositary."

      Each Depositary designated pursuant to Section 2.3 must, at the time of
its designation and at all times while it serves as Depositary, be a clearing
agency registered under the Securities Exchange Act of 1934, as amended, and any
other applicable statute or regulation.

      SECTION 2.5 Execution of Securities. The Securities shall be signed on
behalf of the Issuer by the chairman of the Board of Directors, the president,
any vice president or the treasurer of the Issuer, under its corporate seal
which may, but need not, be attested by its secretary or one of its assistant
secretaries. Such signatures may be the manual or facsimile signatures of the
present or any future such officers. The seal of the Issuer may be in the form
of a facsimile thereof and may be impressed, affixed, imprinted or otherwise
reproduced on the Securities. Typographical and other minor errors or defects in
any such reproduction of the seal or any such signature shall not affect the
validity or enforceability of any Security that has been duly authenticated and
delivered by the Trustee.

      In case any officer of the Issuer who shall have signed any of the
Securities shall cease to be such officer before the Security so signed shall be
authenticated and delivered by the Trustee or disposed of by the Issuer, such
Security nevertheless may be authenticated and delivered or disposed of as
though the person who signed such Security had not ceased to be such officer of
the Issuer; and any Security may be signed on behalf of the Issuer by such
persons as, at the actual date of the execution of such Security, shall be the
proper officers of the Issuer, although at the date of the execution and
delivery of this Indenture any such person was not such an officer.

      SECTION 2.6 Certificate of Authentication. Only such Securities as shall
bear thereon a certificate of authentication substantially in the form
hereinbefore recited, executed by the Trustee by the manual signature of one of
its authorized signatories, or its Authenticating Agent, shall be entitled to
the benefits of this Indenture or be valid or obligatory for any purpose. The
execution of such certificate by the Trustee or its Authenticating Agent upon
any Security executed by the Issuer shall be conclusive evidence that the
Security so authenticated has been duly authenticated and delivered hereunder
and that the Holder is entitled to the benefits of this Indenture. Each
reference in this Indenture

<PAGE>   22
                                                                              15


to authentication by the Trustee includes authentication by an agent appointed
pursuant to Section 6.14.

      SECTION 2.7 Denomination and Date of Securities; Payments of Interest. The
Securities of each series shall be issuable in registered form in denominations
established as contemplated by Section 2.3 or, with respect to the Securities of
any series, if not so established, in denominations of $1,000 and any integral
multiple thereof. The Securities of each series shall be numbered, lettered or
otherwise distinguished in such manner or in accordance with such plan as the
officers of the Issuer executing the same may determine with the approval of the
Trustee, as evidenced by the execution and authentication thereof.

       Each Security shall be dated the date of its authentication. The
Securities of each series shall bear interest, if any, from the date of its
authentication, and such interest, if any, shall be payable on the dates,
established as contemplated by Section 2.3.

      The Person in whose name any Security of any series is registered at the
close of business on any record date applicable to a particular series with
respect to any interest payment date for such series shall be entitled to
receive the interest, if any, payable on such interest payment date
notwithstanding any transfer or exchange of such Security subsequent to the
record date and prior to such interest payment date, except if and to the extent
the Issuer shall default in the payment of the interest due on such interest
payment date for such series, in which case such defaulted interest shall be
paid to the Persons in whose names Outstanding Securities for such series are
registered (a) at the close of business on a subsequent record date (which shall
be not less than five Business Days prior to the date of payment of such
defaulted interest) established by notice given by mail by or on behalf of the
Issuer to the Holders of Securities not less than 15 days preceding such
subsequent record date or (b) as determined by such other procedure as is
mutually acceptable to the Issuer and the Trustee. The term "record date" as
used with respect to any interest payment date (except a date for payment of
defaulted interest) for the Securities of any series shall mean the date
specified as such in the terms of the Securities of such series established as
contemplated by Section 2.3, or, if no such date is so established, if such
interest payment date is the first day of a calendar month, the fifteenth day of
the next preceding calendar month or, if such interest payment date is the
fifteenth day of a calendar month, the first day of such calendar month, whether
or not such record date is a Business Day.

      SECTION 2.8 Registration Transfer and Exchange. The Issuer will keep at
each office or agency to be maintained for the purpose as provided in Section
3.2 for each series of Securities a register or registers in which, subject to
such reasonable regulations as it may prescribe, it will provide for the
registration of Securities of each series and the registration of transfer of
Securities of such series. Each such register shall be in written form in the
English language or in any other form capable of being converted into such form
within a reasonable time. At all reasonable times such register or registers
shall be open for inspection and available for copying by the Trustee.

      Upon due presentation for registration of transfer of any Security of any
series at any such office or agency to be maintained for the purpose as provided
in Section 3.2, the Issuer

<PAGE>   23
                                                                              16


shall execute and the Trustee shall authenticate and deliver in the name of the
transferee or transferees a new Security or Securities of the same series,
maturity date, interest rate, if any, and original issue date in authorized
denominations for a like aggregate principal amount.

      All Securities presented for registration of transfer shall (if so
required by the Issuer or the Trustee) be duly endorsed by, or be accompanied by
a written instrument or instruments of transfer in form satisfactory to the
Issuer and the Trustee duly executed by, the Holder or his attorney duly
authorized in writing.

      At the option of the Holder thereof, Securities of any series (other than
a Global Security, except as set forth below) may be exchanged for a Security or
Securities of such series having authorized denominations and an equal aggregate
principal amount, upon surrender of such Securities to be exchanged at the
agency of the Issuer that shall be maintained for such purpose in accordance
with Section 3.2. All Securities surrendered upon any exchange or registration
of transfer provided for in this Indenture shall be promptly cancelled and
returned to the Issuer.

      The Issuer 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 of Securities. No service charge shall be made for any
such transaction or for any exchange of Securities of any series as contemplated
by the immediately preceding paragraph.

      The Issuer shall not be required to exchange or register a transfer of (a)
any Securities of any series for a period of 15 days next preceding the first
mailing or publication of notice of redemption of Securities of such series to
be redeemed, (b) any Securities selected, called or being called for redemption,
in whole or in part, except, in the case of any Security to be redeemed in part,
the portion thereof not so to be redeemed or (c) any Security if the Holder
thereof has exercised his right, if any, to require the Issuer to repurchase
such Security in whole or in part, except the portion of such Security not
required to be repurchased.

      Notwithstanding any other provision of this Section 2.8, unless and until
it is exchanged in whole or in part for Securities in definitive registered
form, a Global Security representing all or a part 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 any Securities of a series represented
by one or more Global Securities notifies the Issuer that it is unwilling or
unable to continue as Depositary for such Securities or if at any time the
Depositary for such Securities shall no longer be eligible under Section 2.4,
the Issuer shall appoint a successor Depositary with respect to such Securities.
If a successor Depositary for such Securities is not appointed by the Issuer
within 90 days after the Issuer receives such notice or becomes aware of such
ineligibility, the Issuer's election pursuant to Section 2.3 that such
Securities be represented by one or more Global Securities shall no longer be
effective and the Issuer shall execute, and the Trustee,

<PAGE>   24
                                                                              17


upon receipt of an Issuer Order for the authentication and delivery of
definitive Securities of such series, will authenticate and deliver Securities
of such series in definitive registered form, in any authorized denominations,
in an aggregate principal amount equal to the principal amount of the Global
Security or Securities representing such Securities in exchange for such Global
Security or Securities.

      The Issuer 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 Issuer shall execute, and the Trustee, upon receipt of an Issuer Order for
the authentication and delivery of definitive Securities of such series, shall
authenticate and deliver, Securities of such series in definitive registered
form, in any authorized denominations, in an aggregate principal amount equal to
the principal amount of the Global Security or Securities representing such
Securities, in exchange for such Global Security or Securities.

      If specified by the Issuer pursuant to Section 2.3 with respect to
Securities represented by a Global Security, the Depositary for such Global
Security may surrender such Global Security in exchange in whole or in part for
Securities of the same series in definitive registered form on such terms as are
acceptable to the Issuer and such Depositary. Thereupon, the Issuer 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 denominations 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
cancelled by the Trustee or an agent of the Issuer or the Trustee. Securities in
definitive registered form issued in exchange for a Global Security pursuant to
this Section 2.8 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 or an agent of the Trustee or the Issuer or an agent of the
Issuer. The Trustee or such agent shall deliver at its office such Securities to
or as directed by the Persons in whose names such Securities are so registered.

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

<PAGE>   25
                                                                              18


      SECTION 2.9 Mutilated, Defaced, Destroyed, Lost and Stolen Securities. In
case any temporary or definitive Security shall become mutilated, defaced or be
destroyed, lost or stolen, the Issuer in its discretion may execute, and upon
the written request of any officer of the Issuer, the Trustee shall authenticate
and deliver a new Security of the same series, maturity date, interest rate, if
any, and original issue date, bearing a number or other distinguishing symbol
not contemporaneously outstanding, in exchange and substitution for the
mutilated or defaced Security, or in lieu of and in substitution for the
Security so destroyed, lost or stolen. In every case the applicant for a
substitute Security shall furnish to the Issuer and to the Trustee and any agent
of the Issuer or the Trustee such security or indemnity as may be required by
the Trustee or the Issuer or any such agent to indemnify and defend and to save
each of the Trustee and the Issuer and any such agent harmless and, in every
case of destruction, loss or theft, evidence to their satisfaction of the
destruction, loss or theft of such Security and of the ownership thereof and in
the case of mutilation or defacement, shall surrender the Security to the
Trustee or such agent.

      Upon the issuance of any substitute Security, the Issuer 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 or its agent) connected therewith. In case any
Security which has matured or is about to mature or has been called for
redemption in full shall become mutilated or defaced or be destroyed, lost or
stolen, the Issuer may instead of issuing a substitute Security, pay or
authorize the payment of the same (without surrender thereof except in the case
of a mutilated or defaced Security), if the applicant for such payment shall
furnish to the Issuer and to the Trustee and any agent of the Issuer or the
Trustee such security or indemnity as any of them may require to hold each of
them harmless, and, in every case of destruction, loss or theft, the applicant
shall also furnish to the Issuer and the Trustee and any agent of the Issuer or
the Trustee evidence to the Trustee's satisfaction of the destruction, loss or
theft of such Security and of the ownership thereof.

      Every substitute Security of any series issued pursuant to the provisions
of this Section by virtue of the fact that any such Security is destroyed, lost
or stolen shall constitute an additional contractual obligation of the Issuer,
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 (but shall be
subject to all the limitations of rights set forth in) this Indenture equally
and proportionately with any and all other Securities of such series duly
authenticated and delivered hereunder. All Securities shall be held and owned
upon the express condition that, to the extent permitted by law, the foregoing
provisions are exclusive with respect to the replacement or payment of
mutilated, defaced, destroyed, lost or stolen Securities and shall preclude any
and all other rights or remedies notwithstanding any law or statute existing or
hereafter enacted to the contrary with respect to the replacement or payment of
negotiable instruments or other securities without their surrender.

      SECTION 2.10 Cancellation of Securities; Disposition Thereof. All
Securities surrendered for payment, redemption, registration of transfer or
exchange, or for credit against any payment in respect of a sinking or analogous
fund, if surrendered to the Issuer or any agent of the Issuer or the Trustee or
any agent of the Trustee, shall be delivered to the

<PAGE>   26
                                                                              19


Trustee or its agent for cancellation or, if surrendered to the Trustee, shall
be cancelled by it; and no Securities shall be issued in lieu thereof except as
expressly permitted by any of the provisions of this Indenture. The Trustee
shall return all cancelled Securities to the Company. If the Issuer or its agent
shall acquire any of the Securities, such acquisition shall not operate as a
redemption or satisfaction of the indebtedness represented by such Securities
unless and until the same are delivered to the Trustee or its agent for
cancellation.

      SECTION 2.11 Temporary Securities. Pending the preparation of definitive
Securities for any series, the Issuer may execute and the Trustee shall
authenticate and deliver temporary Securities for such series (printed,
lithographed, typewritten or otherwise reproduced, in each case in form
satisfactory to the Trustee). Temporary Securities of any series shall be
issuable in any authorized denomination, and substantially in the form of the
definitive Securities of such series but with such omissions, insertions and
variations as may be appropriate for temporary Securities, all as may be
determined by the Issuer with the concurrence of the Trustee as evidenced by the
execution and authentication thereof. Temporary Securities may contain such
references to any provisions of this Indenture as may be appropriate. Every
temporary Security shall be executed by the Issuer and be authenticated by the
Trustee upon the same conditions and in substantially the same manner, and with
like effect, as the definitive Securities. Without unreasonable delay the Issuer
shall execute and shall furnish definitive Securities of such series and
thereupon temporary Securities of such series may be surrendered in exchange
therefor without charge at each office or agency to be maintained by the Issuer
for that purpose pursuant to Section 3.2 and the Trustee shall authenticate and
deliver in exchange for such temporary Securities of such series an equal
aggregate principal amount of definitive Securities of the same series having
authorized denominations. Until so exchanged, the temporary Securities of any
series shall be entitled to the same benefits under this Indenture as definitive
Securities of such series, unless otherwise established pursuant to Section 2.3.

      SECTION 2.12 CUSIP Numbers. The Issuer in issuing the Securities may use
"CUSIP" numbers (if then generally in use), and, if so, the Trustee shall use
"CUSIP" numbers in notices of redemption as a convenience to Holders; provided
that any such notice may state that no representation is made as to the
correctness of such numbers either as printed on the Securities or as contained
in any notice of a redemption and that reliance may be placed only on the other
identification numbers printed on the Securities, and any such redemption shall
not be affected by any defect in or omission of such numbers.

                                  ARTICLE THREE
                             COVENANTS OF THE ISSUER

      Subject to the provisions of Article Ten, the Company covenants for the
benefit of the Securityholders that:

      SECTION 3.1 Payment of Principal and Interest. (a) The Issuer will
punctually pay the principal and interest, if any, to become due in respect of
the Securities according to the

<PAGE>   27
                                                                              20


terms of the Securities and this Indenture. Payments of principal and interest
shall be made at the Corporate Trust Office.

      (b) The Issuer shall pay interest on overdue principal and interest on
overdue installments of interest, to the extent lawful, at the rate per annum
set forth in the Securities.

      SECTION 3.2 Maintenance of Office or Agency for Notices and Demands. The
Issuer will maintain in The City of New York an office or agency where the
Securities may be presented for payment, an office or agency where the
Securities may be presented for registration of transfer and for exchange as
provided in this Indenture and an office or agency where notices and demands to
or upon the Issuer in respect of such Securities or of this Indenture may be
served. Until otherwise designated by the Issuer in a written notice to the
Trustee, such office or agency in The City of New York shall be the State Street
Bank and Trust Company, N.A., an Affiliate of the Trustee, located at 61
Broadway, 15th Floor, New York, New York 10006. If at any time the Issuer shall
fail to maintain any such required office, such presentations and demands may
also be made and notices may also be served at the Corporate Trust Office.

      SECTION 3.3 Officers' Annual Compliance Certificate Filed with the
Trustee. Within 120 days after the close of each fiscal year of the Issuer
ending after the date hereof, the Issuer will file with the Trustee a
certificate signed by the Chairman of the Board of Directors, the Chief
Executive Officer, the President or any Vice President and by the Chief
Financial Officer, Treasurer or any Assistant Treasurer or the Secretary or any
Assistant Secretary of the Issuer (provided, that one of such signatories shall
be the Issuer's principal executive officer, principal financial officer or
principal accounting officer), as to such Officers' knowledge of the Issuer's
compliance with all conditions and covenants under this Indenture (without
regard to any period of grace or requirement of notice provided hereunder) and
in the event any Default of the Issuer exists, such Officers shall specify the
nature of such Default.

      SECTION 3.4 Corporate Existence. Subject to Article Nine, the Issuer will
do or cause to be done all things necessary to preserve and keep in full force
and effect its corporate existence and its material rights (charter and
statutory) and franchises; provided, however, that the Issuer shall not be
required to preserve any such material right or franchise if the preservation
thereof is no longer desirable in the conduct of the business of the Issuer or
the loss thereof is not materially adverse to the Holders of the Securities.

      SECTION 3.5 Payment of Taxes and Other Claims. The Issuer will pay or
discharge or cause to be paid or discharged, before any penalty accrues thereon,
(a) all material taxes, assessments and governmental charges levied or imposed
upon the Issuer or any Subsidiary or upon the income, profits or property of the
Issuer or any Subsidiary, and (b) all material lawful claims for labor,
materials and supplies which, if unpaid, might by law become a Lien upon the
property of the Issuer or any Restricted Subsidiary; provided, however, that the
Issuer shall not be required to pay or discharge or cause to be paid or
discharged any such tax, assessment, charge or claim whose amount, applicability
or validity is being contested in good faith by appropriate proceedings.

<PAGE>   28
                                                                              21


      SECTION 3.6 Limitation on Liens. (a) The Issuer will not, nor will it
permit any Restricted Subsidiary to, (i) issue, assume or guarantee any Debt, if
such Debt is secured by a Lien upon, or (ii) directly or indirectly secure any
outstanding Debt of the Issuer or any Restricted Subsidiary by a Lien upon, any
Principal Property now owned or hereafter acquired, without in any such case
effectively providing, concurrently with the issuance, assumption or guarantee
of any such Debt, or the granting of security with respect to any such
outstanding Debt, that the Securities (together with, if the Issuer shall so
determine, any other Debt of or guaranteed by the Issuer or any Restricted
Subsidiary ranking equally with the Securities then existing or thereafter
created) shall be secured equally and ratably with (or prior to) such Debt;
provided, however, that the foregoing restriction shall not apply to:

            (1) Liens on any Principal Property acquired after the date of this
      Indenture which are created or assumed contemporaneously with, or within
      90 days after, such acquisition solely for the purpose of securing Debt
      (including, but not limited to, deferred purchase price obligations)
      representing, or incurred to finance, refinance or refund, the purchase
      price or acquisition cost of the Principal Property subject thereto,
      provided that (A) the principal amount of the Debt secured by such Lien
      does not exceed 100% of such purchase price or acquisition cost and (B)
      such Lien does not extend to or cover any Principal Property other than
      such Principal Property and any improvements on or rights appurtenant
      thereto acquired in such transaction;

            (2) Liens on any Principal Property acquired after the date of this
      Indenture existing at the time such Principal Property is acquired;

            (3) Liens on any Principal Property or shares of stock or Debt
      acquired from or through a corporation which is merged with or into the
      Issuer or a Restricted Subsidiary;

            (4) Liens to secure Debt of a Subsidiary to the Issuer or to another
      Subsidiary;

            (5) Liens on any Principal Property in existence on the date of this
      Indenture;

            (6) Liens on any Principal Property constituting unimproved real
      property constructed or improved by the Issuer or any Restricted
      Subsidiary after the date of this Indenture which are created or assumed
      contemporaneously with, or within 90 days after, such construction or
      improvement solely for the purpose of securing Debt (including, but not
      limited to, deferred purchase price obligations) representing, or incurred
      to finance, refinance or refund, the cost of such construction or
      improvement, provided that (A) the principal amount of the Debt secured by
      such Lien does not exceed 100% of such cost and (B) such Lien does not
      extend to or cover any Principal Property other than such unimproved real
      property and any improvements on or rights appurtenant thereto constructed
      or improved in such transaction;

            (7) Liens in favor of the United States of America, any of its
      territories or possessions, or any State thereof, or any department,
      agency, instrumentality or political subdivision of any thereof, or any
      department, agency or instrumentality of

<PAGE>   29
                                                                              22


      any such political subdivision, to secure partial progress, advance or
      other payments pursuant to any contract or statute or to secure any Debt
      incurred for the purpose of financing all or any part of the purchase
      price or the cost of constructing or improving the Principal Property
      subject to such Lien;

            (8) pledges or deposits securing Debt incurred in connection with
      workers' compensation, unemployment insurance and other social security
      legislation and deposits securing Debt to insurance carriers under
      insurance or self-insurance arrangements;

            (9) Liens securing Debt incurred in connection with taxes not yet
      due or which are being contested in good faith by appropriate proceedings,
      provided that adequate reserves with respect thereto are maintained on the
      books of the Issuer or its Subsidiaries, as the case may be, in conformity
      with GAAP (or, in the case of Foreign Subsidiaries, generally accepted
      accounting principles in effect from time to time in their respective
      jurisdictions of incorporation);

            (10) Liens securing any extension, renewal, substitution or
      replacement (or successive extensions, renewals, substitutions or
      replacements) of Debt of the Issuer or any Restricted Subsidiary which is
      outstanding on December 31, 1994; provided, however, that the principal
      amount of Debt secured thereby shall not exceed the principal amount of
      Debt so secured at December 31, 1994; and

            (11) any extension, renewal, substitution or replacement (or
      successive extensions, renewals, substitutions or replacements), in whole
      or in part, of any Lien referred to in the foregoing clauses (1) through
      (10), inclusive; provided, however, that such extension, renewal,
      substitution or replacement shall be limited to all or part of the
      Principal Property which secured the Lien so extended, renewed,
      substituted or replaced (plus improvements on such Principal Property).

      (b) Notwithstanding the provisions of Section 3.6(a), the Issuer or any
Restricted Subsidiary may (without equally and ratably securing the Securities)
issue, assume or guarantee secured Debt which would otherwise be subject to the
foregoing Lien restrictions in an aggregate amount which, together with all
other such secured Debt of the Issuer and its Restricted Subsidiaries (that is,
not including secured Debt of the Issuer and its Restricted Subsidiaries
permitted in accordance with Section 3.6(a)) and all Attributable Debt in
respect of Sale and Lease-Back Transactions existing at such time (other than
Sale and Lease-Back Transactions permitted in accordance with Section 3.7(a)),
does not at the time exceed 15% of Shareholders' Equity in the Issuer and its
Consolidated Subsidiaries, as shown on the audited consolidated balance sheet
contained in the latest annual report to shareholders of the Issuer.

      SECTION 3.7 Limitation on Sale and Lease-Back Transactions. (a) The Issuer
will not, nor will it permit any Restricted Subsidiary to, enter into any Sale
and Lease-Back Transaction of any Principal Property unless the proceeds of such
sale or transfer are at least equal to the fair value (as determined by the
Board of Directors) of the Principal Property to be leased pursuant to such Sale
and Lease-Back Transaction and either (i) the Issuer or such

<PAGE>   30
                                                                              23


Restricted Subsidiary would be entitled to incur Debt secured by a Lien on such
Principal Property without equally and ratably securing the Securities pursuant
to Section 3.6, (ii) such Sale and Lease-Back Transaction is entered into
between or among the Issuer and a Subsidiary or between or among Subsidiaries,
(iii) the lease in such Sale and Lease-Back Transaction is for a period,
including renewal rights, of not in excess of three years, and the Issuer or
such Restricted Subsidiary that is a party to such lease intends that its use of
such Principal Property will be discontinued on or before the expiration of such
period, or (iv) the Issuer covenants that it will apply, or cause such
Restricted Subsidiary to apply, an amount equal to the fair value (as determined
by the Board of Directors) of the Principal Property sold to (1) the retirement
(other than any mandatory retirement), within 60 days of the effective date of
any such Sale and Lease-Back Transaction, of Funded Debt of the Issuer or of
such Restricted Subsidiary or (2) the purchase of property that will constitute
Principal Property.

      (b) Notwithstanding the provisions of Section 3.7(a), the Issuer or any
Restricted Subsidiary may enter into any Sale and Lease-Back Transaction which
would otherwise be subject to the foregoing restrictions if the amount of the
Attributable Debt in respect of such Sale and Lease-Back Transaction, together
with all secured Debt of the Issuer and its Restricted Subsidiaries (other than
secured Debt of the Issuer and its Restricted Subsidiaries permitted in
accordance with Section 3.6(a)) and all other Attributable Debt in respect of
Sale and Lease-Back Transactions existing at such time (other than Sale and
Lease-Back Transactions permitted in accordance with Section 3.7(a)), does not
at the time exceed 15% of Shareholders' Equity in the Issuer and its
Consolidated Subsidiaries, as shown on the audited consolidated balance sheet
contained in the latest annual report to shareholders of the Issuer.

                                  ARTICLE FOUR
                    SECURITYHOLDERS LISTS AND REPORTS BY THE
                             ISSUER AND THE TRUSTEE

      SECTION 4.1 Issuer to Furnish Trustee Information as to Names and
Addresses of Securityholders. The Issuer and any other obligor on the Securities
covenant and agree that they will furnish or cause to be furnished to the
Trustee a list in such form as the Trustee may reasonably require of the names
and addresses of the Holders of the Securities of each series:

            (a) semiannually and not more than 15 days after each January 1 and
      July 1, and

            (b) at such other times as the Trustee may request in writing,
      within 30 days after receipt by the Issuer of any such request,

provided that if and so long as the Trustee shall be the registrar for such
series, such list shall not be required to be furnished.

      SECTION 4.2 Preservation and Disclosure of Securityholders Lists. (a) The
Trustee shall preserve, in as current a form as is reasonably practicable, all
information as to the

<PAGE>   31
                                                                              24


names and addresses of the Holders of each series of Securities (i) contained in
the most recent list furnished to it as provided in Section 4.1, and (ii)
received by it in the capacity of registrar or paying agent for such series, if
so acting. The Trustee may destroy any list furnished to it as provided in
Section 4.1 upon receipt of a new list so furnished.

      (b) In case three or more Holders of Securities (hereinafter referred to
as "applicants") apply in writing to the Trustee and furnish to the Trustee
reasonable proof that each such applicant has owned a Security for a period of
at least six months preceding the date of such application, and such application
states that the applicants desire to communicate with other Holders of
Securities of a particular series (in which case the applicants must all hold
Securities of such series) or with Holders of all Securities with respect to
their rights under this Indenture or under such Securities and such application
is accompanied by a copy of the form of proxy or other communication which such
applicants propose to transmit, then the Trustee shall, within five Business
Days after the receipt of such application, at its election, either

            (i) afford to such applicants access to the information preserved at
      the time by the Trustee in accordance with the provisions of subsection
      (a) of this Section 4.2, or

            (ii) inform such applicants as to the approximate number of Holders
      of Securities of such series or of all Securities, as the case may be,
      whose names and addresses appear in the information preserved at the time
      by the Trustee, in accordance with the provisions of subsection (a) of
      this Section 4.2, and as to the approximate cost of mailing to such
      Securityholders the form of proxy or other communication, if any,
      specified in such application.

      If the Trustee shall elect not to afford to such applicants access to such
information, the Trustee shall, upon the written request of such applicants,
mail to each Securityholder of such series or all Holders of Securities, as the
case may be, whose name and address appears in the information preserved at the
time by the Trustee in accordance with the provisions of subsection (a) of this
Section 4.2 a copy of the form of proxy or other communication which is
specified in such request, with reasonable promptness after a tender to the
Trustee of the material to be mailed and of payment, or provision for the
payment, of the reasonable expenses of mailing, unless within five days after
such tender, the Trustee shall mail to such applicants and file with the
Commission, together with a copy of the material to be mailed, a written
statement to the effect that, in the opinion of the Trustee, such mailing would
be contrary to the best interests of the Holders of Securities of such series or
of all Securities, as the case may be, or would be in violation of applicable
law. Such written statement shall specify the basis of such opinion. If the
Commission, after opportunity for a hearing upon the objections specified in the
written statement so filed, shall enter an order refusing to sustain any of such
objections or if, after the entry of an order sustaining one or more of such
objections, the Commission shall find, after notice and opportunity for hearing,
that all the objections so sustained have been met, and shall enter an order so
declaring, the Trustee shall mail copies of such material to all such
Securityholders with reasonable promptness after the entry of such order and the
renewal of such tender; otherwise the Trustee shall be relieved of any
obligation or duty to such applicants respecting their application.

<PAGE>   32
                                                                              25


      (c) Each and every Holder of Securities, by receiving and holding the
same, agrees with the Issuer and the Trustee that neither the Issuer nor the
Trustee nor any agent of the Issuer or the Trustee shall be held accountable by
reason of the disclosure of any such information as to the names and addresses
of the Holders of Securities in accordance with the provisions of subsection (b)
of this Section 4.2, regardless of the source from which such information was
derived, and that the Trustee shall not be held accountable by reason of mailing
any material pursuant to a request made under such subsection (b).

      SECTION 4.3  Reports by the Issuer.  The Issuer covenants:

      (a) to file with the Trustee, within 15 days after the Issuer is required
to file the same with the Commission, copies of the annual reports and of the
information, documents and other reports (or copies of such portions of any of
the foregoing as the Commission may from time to time by rules and regulations
prescribe) which the Issuer may be required to file with the Commission pursuant
to Section 13 or Section 15(d) of the Exchange Act; or, if the Issuer is not
required to file information, documents or reports pursuant to either of such
Sections, then to file with the Trustee and the Commission, in accordance with
rules and regulations prescribed from time to time by the Commission, such of
the supplementary and periodic information, documents and reports which may be
required pursuant to Section 13 of the Exchange Act, in respect of a debt
security listed and registered on a national securities exchange as may be
prescribed from time to time in such rules and regulations;

      (b) to file with the Trustee and the Commission, in accordance with rules
and regulations prescribed from time to time by the Commission, such additional
information, documents and reports with respect to compliance by the Issuer with
the conditions and covenants provided for in this Indenture as may be required
from time to time by such rules and regulations; and

      (c) to transmit by mail to the Holders of Securities within 30 days after
the filing thereof with the Trustee, in the manner and to the extent provided in
Section 4.4(c), such summaries of any information, documents and reports
required to be filed by the Issuer pursuant to subsections (a) and (b) of this
Section 4.3 as may be required to be transmitted to such Holders by rules and
regulations prescribed from time to time by the Commission.

      SECTION 4.4 Reports by the Trustee. (a) Within 60 days after May 15 of
each year commencing with the May 15 following the date of this Indenture, the
Trustee shall transmit by mail to the Holders of Securities, as provided in
subsection (c) of this Section 4.4, a brief report dated as of such May 15 with
respect to any of the following events which may have occurred within the last
12 months (but if no such event has occurred within such period, no report need
be transmitted):

            (i) any change to its eligibility under Section 6.9 and its
      qualification under Section 6.8;

            (ii) the creation of, or any material change to, a relationship
      specified in paragraph (1) through (10) of Section 3.10(b) of the Trust
      Indenture Act of 1939;

<PAGE>   33
                                                                              26


            (iii) the character and amount of any advances (and if the Trustee
      elects so to state, the circumstances surrounding the making thereof) made
      by the Trustee (as such) which remain unpaid on the date of such report
      and for the reimbursement of which it claims or may claim a lien or
      charge, prior to that of the Securities of any series, on any property or
      funds held or collected by it as Trustee, except that the Trustee shall
      not be required (but may elect) to report such advances if such advances
      so remaining unpaid aggregate not more than 1/2 of 1% of the principal
      amount of all Securities Outstanding on the date of such report;

            (iv) the amount, interest rate, if any, and maturity date of all
      other indebtedness owing by the Issuer (or by any other obligor on the
      Securities) to the Trustee in its individual capacity on the date of such
      report, with a brief description of any property held as collateral
      security therefor, except any indebtedness based upon a creditor
      relationship arising in any manner described in Section 6.13;

            (v) any change to the property and funds, if any, physically in the
      possession of the Trustee (as such) on the date of such report;

            (vi) any additional issue of Securities which the Trustee has not
      previously reported; and

            (vii) any action taken by the Trustee in the performance of its
      duties under this Indenture which it has not previously reported and which
      in its opinion materially affects the Securities, except action in respect
      of a default, notice of which has been or is to be withheld by it in
      accordance with the provisions of Article Five.

      (b) The Trustee shall transmit to the Securityholders of each series, as
provided in subsection (c) of this Section 4.4, a brief report with respect to
the character and amount of any advances (and if the Trustee elects so to state,
the circumstances surrounding the making thereof) made by the Trustee, as such,
since the date of the last report transmitted pursuant to the provisions of
subsection (a) of this Section 4.4 (or if no such report has yet been so
transmitted, since the date of this Indenture) for the reimbursement of which it
claims or may claim a lien or charge prior to that of the Securities of such
series on property or funds held or collected by it as Trustee and which it has
not previously reported pursuant to this subsection (b), except that the Trustee
shall not be required (but may elect) to report such advances if such advances
remaining unpaid at any time aggregate 10% or less of the principal amount of
all Securities Outstanding at such time, such report to be transmitted within 90
days after such time.

      (c) Reports pursuant to this Section shall be transmitted by mail:

            (i) to all Holders of Securities, as the names and addresses of such
      Holders appear upon the registry books of the Issuer; and

            (ii) to all other Persons to whom such reports are required to be
      transmitted pursuant to Section 313(c) of the Trust Indenture Act of 1939.

<PAGE>   34
                                                                              27


      (d) A copy of each such report shall, at the time of such transmission to
Securityholders, be furnished to the Issuer and be filed by the Trustee with
each stock exchange upon which the Securities of any applicable series are
listed and also with the Commission. The Issuer agrees to promptly notify the
Trustee with respect to any series when and as the Securities of such series
become admitted to trading on any national securities exchange.

                                  ARTICLE FIVE
                  REMEDIES OF THE TRUSTEE AND SECURITY HOLDERS
                               ON EVENT OF DEFAULT

      SECTION 5.1 Events of Default. "Event of Default", wherever used herein
with respect to Securities of any series, means any one or more of the following
events (whatever the reason for such Event of Default), unless it is either
inapplicable to a particular series or it is specifically deleted or modified in
or pursuant to the Board Resolution, Officers' Certificate or supplemental
indenture establishing such series of Securities or in the form of Security, for
such series:

            (a) Failure to pay any installment of interest on any of the
      Securities of such series, when and as the same shall become payable as
      therein expressed, and such failure shall continue for a period of 30 days
      (it being understood that if the entire amount of such payment of interest
      is irrevocably deposited by the Issuer with the Trustee, or with another
      paying agent duly appointed hereunder, before the expiration of such
      period of 30 days, such default shall no longer be considered to be
      continuing under this Indenture); or

            (b) Failure to pay the principal of the Securities of such series
      when and as the same shall become due and payable, whether at Stated
      Maturity thereof or otherwise; or

            (c) Failure to perform or observe any other of the covenants,
      conditions or agreements on the part of the Issuer in this Indenture
      (other than a covenant, condition or agreement a Default in whose
      performance or whose breach is elsewhere in this Section specifically
      dealt with) or in the Securities of such series, and such failure shall
      continue for a period of 60 days after written notice specifying the
      failure and that the same is a Default and requiring the Issuer to remedy
      such failure shall have been given to the Issuer from the Trustee or to
      the Issuer and to the Trustee from the Holders of not less than 25% of the
      principal amount of the Securities of such series then Outstanding; or

            (d) If the Issuer or any Subsidiary shall file a petition commencing
      a voluntary case under any provision of Bankruptcy Law; or the Issuer or
      any Subsidiary shall file a petition or answer or consent seeking
      reorganization, arrangement, adjustment, or composition under any
      Bankruptcy Law, or shall consent to the filing of any such petition,
      answer, or consent; or the Issuer or any Subsidiary shall appoint, or
      consent

<PAGE>   35
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      to the appointment of, a custodian, receiver, liquidator, trustee,
      assignee, sequestrator or other similar official in bankruptcy or
      insolvency of the Issuer or any Subsidiary or of any substantial part of
      its property; or shall make an assignment for the benefit of creditors; or

            (e) If any order for relief against the Issuer or any Subsidiary
      shall have been entered by a court having jurisdiction in the premises
      under any provision of Bankruptcy Law and such order shall have continued
      undischarged or unstayed for a period of 120 days; or a decree or order by
      a court having jurisdiction in the premises shall have been entered
      approving as properly filed a petition seeking reorganization,
      arrangement, adjustment, or composition of the Issuer under any Bankruptcy
      Law, and such decree or order shall have continued undischarged or
      unstayed for a period of 120 days; or a decree or order of a court having
      jurisdiction in the premises for the appointment of a custodian, receiver,
      liquidator, trustee, assignee, sequestrator, or other similar official in
      bankruptcy or insolvency of the Issuer or any Subsidiary or of any
      substantial part of its property, or for the winding up or liquidation of
      its affairs, shall have been entered, and such decree or order shall have
      remained in force undischarged or unstayed for a period of 120 days.

      If an Event of Default specified in Section 5.1(a), 5.1(b) or 5.1(c) with
respect to Securities of any series then Outstanding occurs and is continuing,
then and in each and every such case, unless the principal of all of the
Securities of such series shall have already become due and payable, either the
Trustee or the Holders of not less than 25% in aggregate principal amount of the
Securities of such series then Outstanding, by notice in writing to the Issuer
(and to the Trustee if given by Securityholders), may declare the principal (or,
if the Securities of such series are Original Issue Discount Securities, such
portion of the principal amount as may be specified in the terms of such series)
of all the Securities of such series and the interest, if any, accrued thereon
to be due and payable immediately, and upon any such declaration the same shall
become and shall be immediately due and payable, notwithstanding anything to the
contrary contained in this Indenture or in the Securities of such series. This
provision, however, is subject to the condition that, if at any time after the
unpaid principal amount (or such specified amount) of the Securities of such
series shall have been so declared due and payable and before any judgment or
decree for the payment of the moneys due shall have been obtained or entered as
hereinafter provided, the Issuer shall pay or shall deposit with the Trustee a
sum sufficient to pay all matured installments of interest, if any, upon all of
the Securities of such series and the principal of any and all Securities of
such series which shall have become due otherwise than by acceleration (with
interest on overdue installments of interest, if any, to the extent that payment
of such interest is enforceable under applicable law and on such principal at
the rate borne by the Securities of such series to the date of such payment or
deposit) and the reasonable compensation, disbursements, expenses and advances
of the Trustee and all other amounts due the Trustee under Section 6.6, and any
and all defaults under this Indenture, other than the nonpayment of such portion
of the principal amount of and accrued interest, if any, on Securities of such
series which shall have become due by acceleration, shall have been cured or
shall have been waived in accordance with Section 5.7 or provision deemed by the
Trustee to be adequate shall have been made therefor, then and in every such
case the Holders of a majority in

<PAGE>   36
                                                                              29


aggregate principal amount of the Securities of such series then Outstanding, by
written notice to the Issuer and to the Trustee, may rescind and annul such
declaration and its consequences; but no such rescission and annulment shall
extend to or shall affect any subsequent default, or shall impair any right
consequent thereon. If any Event of Default specified in Section 5.1(d) or
5.1(e) occurs, all unpaid principal amount (or, if the Securities of any series
then Outstanding are Original Issue Discount Securities, such portion of the
principal amount as may be specified in the terms of each such series) and
accrued interest on all Securities of each series then Outstanding shall ipso
facto become and be immediately due and payable without any declaration or other
act by the Trustee or any Securityholder.

      If the Trustee shall have proceeded to enforce any right under this
Indenture and such proceedings shall have been discontinued or abandoned because
of such rescission or annulment or for any other reason or shall have been
determined adversely to the Trustee, then and in every such case the Issuer, the
Trustee and the Securityholders shall be restored respectively to their several
positions and rights hereunder, and all rights, remedies and powers of the
Issuer, the Trustee and the Securityholders shall continue as though no such
proceeding had been taken.

      Except with respect to an Event of Default pursuant to Section 5.1 (a) or
(b), the Trustee shall not be charged with knowledge of any Event of Default
unless written notice thereof shall have been given to a Responsible Officer by
the Issuer, a paying agent or any Securityholder.

      SECTION 5.2 Payment of Securities on Default; Suit Therefor. The Issuer
covenants that (a) if default shall be made in the payment of any installment of
interest upon any of the Securities of any series then Outstanding as and when
the same shall become due and payable, and such default shall have continued for
a period of 30 days, or (b) if default shall be made in the payment of the
principal of any of the Securities of such series as and when the same shall
have become due and payable, whether at maturity of the Securities of such
series or upon redemption or by declaration or otherwise, then, upon demand of
the Trustee, the Issuer will pay to the Trustee, for the benefit of the Holders
of the Securities, the whole amount that then shall have become due and payable
on all such Securities of such series for principal or interest, if any, or
both, as the case may be, with interest upon the overdue principal and (to the
extent that payment of such interest is enforceable under applicable law) upon
the overdue installments of interest, if any, at the rate borne by the
Securities of such series; and, in addition thereto, such further amount as
shall be sufficient to cover the costs and expenses of collection, including a
reasonable compensation to the Trustee, its agents, attorneys and counsel, and
any expenses or liabilities incurred by the Trustee hereunder other than through
its negligence or bad faith.

      If the Issuer shall fail forthwith to pay such amounts upon such demand,
the Trustee, in its own name and as trustee of an express trust, shall be
entitled and empowered to institute any actions or proceedings at law or in
equity for the collection of the sums so due and unpaid, and may prosecute any
such action or proceeding to judgment or final decree, and may enforce any such
judgment or final decree against the Issuer or any other obligor on the
Securities of such series and collect in the manner provided by law out of the
property of

<PAGE>   37
                                                                              30


the Issuer or any other obligor on the Securities of such series, wherever
situated, the moneys adjudged or decreed to be payable.

      If there shall be pending proceedings for the bankruptcy or for the
reorganization of the Issuer or any other obligor on the Securities of any
series then Outstanding under any bankruptcy, insolvency or other similar law
now or hereafter in effect, or if a receiver or trustee or similar official
shall have been appointed for the property of the Issuer or such other obligor,
or in the case of any other similar judicial proceedings relative to the Issuer
or other obligor upon the Securities of such series, or to the creditors or
property of the Issuer or such other obligor, the Trustee, irrespective of
whether the principal of the Securities of such series shall then be due and
payable as therein expressed or by declaration or otherwise and irrespective of
whether the Trustee shall have made any demand pursuant to the provisions of
this Section 5.2, shall be entitled and empowered by intervention in such
proceedings or otherwise to file and prove a claim or claims for the whole
amount of principal and interest, if any, owing and unpaid in respect of the
Securities of such series, and, in case of any judicial proceedings, to file
such proofs of claim and other papers or documents as may be necessary or
advisable in order to have the claims of the Trustee and of the Securityholders
allowed in such judicial proceedings relative to the Issuer or any other obligor
on the Securities of such series, its or their creditors, or its or their
property, and to collect and receive any moneys or other property payable or
deliverable on any such claims, and to distribute the same after the deduction
of its charges and expenses, and any receiver, assignee or trustee or similar
official in bankruptcy or reorganization is hereby authorized by each of the
Securityholders to make such payments to the Trustee, and, if the Trustee shall
consent to the making of such payments directly to the Securityholders, to pay
to the Trustee any amount due it for compensation and expenses or otherwise
pursuant to Section 6.6, including counsel fees and expenses incurred by it up
to the date of such distribution. To the extent that such payment of reasonable
compensation, expenses and counsel fees and expenses out of the estate in any
such proceedings shall be denied for any reason, payment of the same shall be
secured by a lien on, and shall be paid out of, any and all distributions,
dividends, moneys, securities and other property which the Holders of the
Securities of such series may be entitled to receive in such proceedings,
whether in liquidation or under any plan of reorganization or arrangement or
otherwise.

      All rights of action and of asserting claims under this Indenture, or
under any of the Securities, may be enforced by the Trustee without the
possession of any of the Securities, or the production thereof at any trial or
other proceeding relative thereto, and any such suit or proceeding instituted by
the Trustee shall be brought in its own name as trustee of an express trust, and
any recovery of judgment shall be for the ratable benefit of the Holders of the
Securities of the series in respect of which such judgment has been recovered.

      SECTION 5.3 Application of Moneys Collected by Trustee. Any moneys
collected by the Trustee pursuant to Section 5.2 with respect to Securities of
any series then Outstanding shall be applied in the order following, at the date
or dates fixed by the Trustee for the distribution of such moneys, upon
presentation of the several Securities of such series, and stamping thereon the
payment, if only partially paid, and upon surrender thereof, if fully paid:

<PAGE>   38
                                                                              31


            FIRST: To the payment of costs and expenses of collection and
      reasonable compensation to the Trustee, its agents, attorneys and counsel,
      and of all other expenses and liabilities incurred, and all advances made,
      by the Trustee pursuant to Section 6.6 except as a result of its
      negligence or bad faith;

            SECOND: If the principal of the Outstanding Securities of such
      series shall not have become due and be unpaid, to the payment of
      interest, if any, on the Securities of such series, in the order of the
      maturity of the installments of such interest, if any, with interest (to
      the extent that such interest has been collected by the Trustee) upon the
      overdue installments of interest, if any, at the rate borne by the
      Securities of such series, such payment to be made ratably to the Persons
      entitled thereto;

            THIRD: If the principal of the Outstanding Securities of such series
      shall have become due, by declaration or otherwise, to the payment of the
      whole amount then owing and unpaid upon the Securities of such series for
      principal and interest, if any, with interest on the overdue principal and
      (to the extent that such interest has been collected by the Trustee) upon
      overdue installments of interest, if any, at the rate borne by the
      Securities of such series; and in case such moneys shall be insufficient
      to pay in full the whole amounts so due and unpaid upon the Securities of
      such series, then to the payment of such principal and interest, if any,
      without preference or priority of principal over interest or of interest
      over principal, or of any installment of interest over any other
      installment of interest, or of any Security over any other Security,
      ratably to the aggregate of such principal and accrued and unpaid
      interest; and

            FOURTH: To the payment of any surplus then remaining to the Issuer,
      its successors or assigns, or to whomsoever may be lawfully entitled to
      receive the same.

      No claim for interest which in any manner at or after maturity shall have
been transferred or pledged separate or apart from the Securities to which it
relates, or which in any manner shall have been kept alive after maturity by an
extension (otherwise than pursuant to an extension made pursuant to a plan
proposed by the Issuer to the Holders of all Securities of any series then
Outstanding), purchase, funding or otherwise by or on behalf or with the consent
or approval of the Issuer shall be entitled, in case of a default hereunder, to
any benefit of this Indenture, except after prior payment in full of the
principal of all Securities of any series then Outstanding and of all claims for
interest not so transferred, pledged, kept alive, extended, purchased or funded.

      SECTION 5.4 Proceedings by Securityholders. No Holder of any Securities of
any series then Outstanding shall have any right by virtue of or by availing of
any provision of this Indenture to institute any suit, action or proceeding in
equity or at law upon or under or with respect to this Indenture or for the
appointment of a receiver or trustee or similar official, or for any other
remedy hereunder, unless such Holder previously shall have given to the Trustee
written notice of default and of the continuance thereof, as hereinbefore
provided, and unless the Holders of not less than 25% in aggregate principal
amount of the Securities of

<PAGE>   39
                                                                              32


such series then Outstanding shall have made written request to the Trustee to
institute such action, suit or proceeding in its own name as Trustee hereunder
and shall have offered to the Trustee such reasonable indemnity as it may
require against the costs, expenses and liabilities to be incurred therein or
thereby, and the Trustee for 60 days after its receipt of such notice, request
and offer of indemnity, shall have neglected or refused to institute any such
action, suit or proceeding, it being understood and intended, and being
expressly covenanted by the Holder of every Security of such series with every
other taker and Holder and the Trustee, that no one or more Holders of
Securities of such series shall have any right in any manner whatever by virtue
of or by availing of any provision of this Indenture or of the Securities to
affect, disturb or prejudice the rights of any other Holder of such Securities
of such series, or to obtain or seek to obtain priority over or preference as to
any other such Holder, or to enforce any right under this Indenture or the
Securities, except in the manner herein provided and for the equal, ratable and
common benefit of all Holders of Securities of such series.

      Notwithstanding any other provisions in this Indenture, however, the right
of any Holder of any Security to receive payment of the principal of, premium,
if any, and interest, if any, on such Security, on or after the respective due
dates expressed in such Security, or to institute suit for the enforcement of
any such payment on or after such respective dates shall not be impaired or
affected without the consent of such Holder.

      SECTION 5.5 Proceedings by Trustee. In case of an Event of Default
hereunder, the Trustee may in its discretion proceed to protect and enforce the
rights vested in it by this Indenture by such appropriate judicial proceedings
as the Trustee shall deem most effectual to protect and enforce any of such
rights, either by suit in equity or by action at law or by proceedings in
bankruptcy or otherwise, whether for the specific enforcement of any covenant or
agreement contained in this Indenture or in aid of the exercise of any power
granted in this Indenture, or to enforce any other legal or equitable right
vested in the Trustee by this Indenture or by law.

      SECTION 5.6 Remedies Cumulative and Continuing. All powers and remedies
given by this Article Five to the Trustee or to the Securityholders shall, to
the extent permitted by law, be deemed cumulative and not exclusive of any
thereof or of any other powers and remedies available to the Trustee or the
Securityholders, by judicial proceedings or otherwise, to enforce the
performance or observance of the covenants and agreements contained in this
Indenture, and no delay or omission of the Trustee or of any Securityholder to
exercise any right or power accruing upon any Default occurring and continuing
as aforesaid shall impair any such right or power, or shall be construed to be a
waiver of any such Default or an acquiescence therein; and, subject to the
provisions of Section 5.4, every power and remedy given by this Article Five or
by law to the Trustee or to the Securityholders may be exercised from time to
time, and as often as shall be deemed expedient, by the Trustee or by the
Securityholders.

      SECTION 5.7 Direction of Proceedings; Waiver of Defaults by Majority of
Securityholders. The Holders of a majority in aggregate principal amount of the
Securities of any series then Outstanding 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

<PAGE>   40
                                                                              33


power conferred on the Trustee with respect to Securities of such series;
provided, however, that (subject to the provisions of Section 6.1) the Trustee
shall have the right to decline to follow any such direction if the Trustee
shall determine upon advice of counsel that the action or proceeding so directed
may not lawfully be taken or if the Trustee in good faith by its board of
directors, its executive committee, or a trust committee of directors or
Responsible Officers or both shall determine that the action or proceeding so
directed would involve the Trustee in personal liability unless such Holders
provide the Trustee with indemnity satisfactory to it. The Holders of a majority
in aggregate principal amount of the Securities of any series then Outstanding
may on behalf of the Holders of all of the Securities of such series waive any
past Default or Event of Default hereunder and its consequences except a Default
in the payment of interest, if any, on, or the principal of, the Securities of
such series. Upon any such waiver the Issuer, the Trustee and the Holders of the
Securities of such series shall be restored to their former positions and rights
hereunder, respectively; but no such waiver shall extend to any subsequent or
other Default or Event of Default or impair any right consequent thereon.
Whenever any Default or Event of Default hereunder shall have been waived as
permitted by this Section 5.7, said Default or Event of Default shall for all
purposes of the Securities and this Indenture be deemed to have been cured and
to be not continuing.

      SECTION 5.8 Notice of Defaults. The Trustee shall, within 90 days after
the occurrence of a default, with respect to Securities of any series then
Outstanding, mail to all Holders of Securities of such series, as the names and
the addresses of such Holders appear upon the Securities register, notice of all
defaults known to the Trustee with respect to such series, unless such defaults
shall have been cured before the giving of such notice (the term "defaults" for
the purpose of this Section 5.8 being hereby defined to be the events specified
in clauses (a), (b), (c), (d) and (e) of Section 5.1, not including periods of
grace, if any, provided for therein and irrespective of the giving of the
written notice specified in said clause (c) but in the case of any default of
the character specified in said clause (c) no such notice to Securityholders
shall be given until at least 60 days after the giving of written notice thereof
to the Issuer pursuant to said clause (c)); provided, however, that, except in
the case of default in the payment of the principal of or interest, if any, on
any of the Securities, or in the payment or satisfaction of any sinking fund or
other purchase obligation, the Trustee shall be protected in withholding such
notice if and so long as the board of directors, the executive committee, or a
trust committee of directors or Responsible Officers or both of the Trustee in
good faith determines that the withholding of such notice is in the best
interests of the Securityholders.

      SECTION 5.9 Undertaking to Pay Costs. All parties to this Indenture agree,
and each Holder of any Security by his acceptance thereof shall be deemed to
have agreed, that any court may in its discretion require, 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 or omitted by it as Trustee, the filing by any
party litigant in such suit of an undertaking to pay the cost of such suit, and
that such court may in its discretion assess reasonable costs, including
reasonable attorneys' fees and expenses, against any party litigant in such
suit, having due regard to the merits and good faith of the claims or defenses
made by such party litigant; but the provisions of this Section 5.9 shall not
apply to any suit instituted by the Trustee, to any suit instituted

<PAGE>   41
                                                                              34


by any Securityholder, or group of Securityholders, holding in the aggregate
more than 10% in principal amount of the Securities of any series then
Outstanding, or to any suit instituted by any Securityholders for the
enforcement of the payment of the principal of or interest, if any, on any
Security against the Issuer on or after the due date expressed in such Security.

                                   ARTICLE SIX
                             CONCERNING THE TRUSTEE

      SECTION 6.1 Duties and Responsibilities of the Trustee; During Default;
Prior to Default. With respect to the Holders of any series of Securities issued
hereunder, the Trustee, prior to the occurrence of an Event of Default with
respect to the Securities of a particular series and after the curing or waiving
of all Events of Default which may have occurred with respect to such series,
undertakes to perform such duties and only such duties as are specifically set
forth in this Indenture. In case an Event of Default with respect to the
Securities of a series has occurred (which has not been cured or waived) the
Trustee shall exercise with respect to such series of Securities 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.

      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 wilful misconduct, except that

            (a) prior to the occurrence of an Event of Default with respect to
      the Securities of any series and after the curing or waiving of all such
      Events of Default with respect to such series which may have occurred:

                (i) the duties and obligations of the Trustee with respect to
            the Securities of any series shall be determined solely by the
            express provisions of this Indenture, and the Trustee shall not be
            liable except for the performance of such duties and obligations as
            are specifically set forth in this Indenture, and no implied
            covenants or obligations shall be read into this Indenture against
            the Trustee; and

               (ii) in the absence of bad faith on the part of the Trustee, the
            Trustee may conclusively rely, as to the truth of the statements and
            the correctness of the opinions expressed therein, upon any
            statements, certificates or opinions furnished to the Trustee and
            conforming to the requirements of this Indenture; but in the case of
            any such statements, certificates or opinions which by any provision
            hereof 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;

<PAGE>   42
                                                                              35


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

            (c) 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 pursuant to Article Five 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.

      None of the provisions contained in this Indenture shall require the
Trustee to expend or risk its own funds or otherwise incur personal financial
liability in the performance of any of its duties or in the exercise of any of
its rights or powers, if there shall be reasonable ground for believing that the
repayment of such funds or adequate indemnity against such liability is not
reasonably assured to it.

      SECTION 6.2 Certain Rights of the Trustee. Subject to Section 6.1:

      (a) the Trustee may rely and shall be protected in acting or refraining
from acting upon any resolution, Officers' Certificate or any other certificate,
statement, instrument, opinion, report, notice, request, consent, order, bond,
debenture, note, coupon, security 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, direction, order or demand of the Issuer mentioned herein
shall be sufficiently evidenced by an Officers' Certificate or Issuer Order
(unless other evidence in respect thereof be herein specifically prescribed);
and any resolution of the Board of Directors may be evidenced to the Trustee by
a Board Resolution;

      (c) the Trustee may consult with counsel of its selection and any advice
of such counsel promptly confirmed in writing shall be full and complete
authorization and protection in respect of any action taken, suffered or omitted
to be taken by it hereunder in good faith and in reliance thereon in accordance
with such advice or Opinion of Counsel;

      (d) the Trustee shall be under no obligation to exercise any of the trusts
or powers vested in it by this Indenture at the request, order or direction of
any of the Securityholders pursuant to the provisions of this Indenture
(including, without limitation, pursuant to Article Five) unless such
Securityholders shall have offered to the Trustee reasonable security or
indemnity against the costs, expenses and liabilities which might be incurred
therein or thereby;

      (e) the Trustee shall not be liable for any action taken or omitted by it
in good faith and believed by it to be authorized or within the discretion,
rights or powers conferred upon it by this Indenture;

<PAGE>   43
                                                                              36


      (f) prior to the occurrence of an Event of Default hereunder and after the
curing or waiving of all Events of Default, 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, consent,
order, approval, appraisal, bond, debenture, note, coupon, security, or other
paper or document unless requested in writing so to do by the Holders of not
less than a majority in aggregate principal amount of the Securities of all
series affected then Outstanding; provided that, if the payment within a
reasonable time to the Trustee of the costs, expenses or liabilities likely to
be incurred by it in the making of such investigation is, in the opinion of the
Trustee, not reasonably assured to the Trustee by the security afforded to it by
the terms of this Indenture, the Trustee may require reasonable indemnity
against such expenses or liabilities as a condition to proceeding; the
reasonable expenses of every such investigation shall be paid by the Issuer or,
if paid by the Trustee or any predecessor Trustee, shall be repaid by the Issuer
upon demand;

      (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 not regularly in its employ and the Trustee shall not be responsible
for any misconduct or negligence on the part of any such agent or attorney
appointed with due care by it hereunder; and

      (h) the Trustee shall not be charged with knowledge of any Default or
Event of Default with respect to a series of Securities unless either (i) a
Responsible Officer of the Trustee assigned to the Corporate Trust Office of the
Trustee (or any successor division or department of the Trustee) shall have
actual knowledge of such Default or Event of Default or (ii) written notice of
such Default or Event of Default shall have been given to the Trustee by the
Issuer or any other obligor on such series of Securities or by any Holder of
Securities of such series.

      SECTION 6.3 Trustee Not Responsible for Recitals, Disposition of
Securities or Application of Proceeds Thereof. The recitals contained herein and
in the Securities, except the Trustee's certificates of authentication, shall be
taken as the statements of the Issuer, and the Trustee assumes no responsibility
for the correctness of the same. The Trustee makes no representation as to the
validity or sufficiency of this Indenture, of the Securities or of any
prospectus used to sell the Securities. The Trustee shall not be accountable for
the use or application by the Issuer of any of the Securities or of the proceeds
thereof.

      SECTION 6.4 Trustee and Agents May Hold Securities; Collections, etc. The
Trustee or any agent of the Issuer or the Trustee, in its individual or any
other capacity, may become the owner or pledgee of Securities with the same
rights it would have if it were not the Trustee or such agent and, subject to
Sections 6.8 and 6.13, may otherwise deal with the Issuer and receive, collect,
hold and retain collections from the Issuer with the same rights it would have
if it were not the Trustee or such agent.

      SECTION 6.5 Moneys Held by Trustee. Subject to the provisions of Section
10.4 hereof, all moneys received by the Trustee shall, until used or applied as
herein provided, be held in trust for the purposes for which they were received,
but need not be segregated from other funds except to the extent required by
mandatory provisions of law. Neither the Trustee

<PAGE>   44
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nor any agent of the Issuer or the Trustee shall be under any liability for
interest on any moneys received by it hereunder.

      SECTION 6.6 Compensation and Indemnification of Trustee and Its Prior
Claim. The Issuer covenants and agrees to pay to the Trustee from time to time,
and the Trustee shall be entitled to, such compensation as shall be agreed to in
writing between the Issuer and the Trustee (which shall not be limited by any
provision of law in regard to the compensation of a trustee of an express trust)
and the Issuer covenants and agrees to pay or reimburse the Trustee and each
predecessor Trustee upon its request for all reasonable expenses, disbursements
and advances incurred or made by or on behalf of it in accordance with any of
the provisions of this Indenture (including the reasonable compensation and the
expenses and disbursements of its counsel and of all agents and other persons
not regularly in its employ) except any such expense, disbursement or advance as
may arise from its negligence or bad faith. The Issuer also covenants to
indemnify the Trustee and each predecessor Trustee for, and to hold it harmless
against, any and all loss, liability, damage, claim or expense, including taxes
(other than taxes based on the income of the Trustee), incurred without
negligence or bad faith on its part, arising out of or in connection with the
acceptance or administration of this Indenture or the trusts hereunder and its
duties hereunder, including the costs and expenses of defending itself against
or investigating any claim or liability in the premises. The obligations of the
Issuer under this Section 6.6 to compensate and indemnify the Trustee and each
predecessor Trustee and to pay or reimburse the Trustee and each predecessor
Trustee for expenses, disbursements and advances shall constitute additional
indebtedness hereunder and shall survive the satisfaction and discharge of this
Indenture or the resignation or removal of the Trustee. Such additional
indebtedness shall be a senior claim to that of 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, and the Securities are
hereby subordinated to such senior claim. When the Trustee incurs expenses or
renders services in connection with an Event of Default specified in Section
5.1(d) or (e) or in connection with Article Five hereof, the expenses (including
the reasonable fees and expenses of its counsel) and the compensation for the
service in connection therewith are intended to constitute expenses of
administration under any bankruptcy law without any need to demonstrate
substantial contribution under any bankruptcy law. The provisions of this
Section 6.6 shall survive the resignation or removal of the Trustee and the
termination of this Indenture.

      SECTION 6.7 Right of Trustee to Rely on Officers' Certificate, etc.
Subject to Sections 6.1 and 6.2, whenever in the administration of the trusts of
this Indenture the Trustee shall deem it necessary or desirable that a matter be
proved or established prior to taking or suffering or omitting any action
hereunder, such matter (unless other evidence in respect thereof be herein
specifically prescribed) may, in the absence of negligence or bad faith on the
part of the Trustee, be deemed to be conclusively proved and established by an
Officers' Certificate delivered to the Trustee, and such certificate, in the
absence of negligence or bad faith on the part of the Trustee, shall be full
warrant to the Trustee for any action taken, suffered or omitted by it under the
provisions of this Indenture upon the faith thereof.

<PAGE>   45
                                                                              38


      SECTION 6.8 Qualification of Trustee; Conflicting Interests. This
Indenture shall always have a Trustee who satisfies the requirements of Section
310(a)(1) of the Trust Indenture Act of 1939. The Trustee shall have a combined
capital and surplus of at least $25,000,000 as set forth in its most recent
published annual report of condition. The Trustee shall comply with Section
310(b) of the Trust Indenture Act of 1939 regarding disqualification of a
trustee upon acquiring a conflicting interest.

      SECTION 6.9 Persons Eligible for Appointment as Trustee; Different
Trustees for Different Series. The Trustee for each series of Securities
hereunder shall at all times be a corporation organized and doing business under
the laws of the United States of America or of any state or the District of
Columbia having a combined capital and surplus of at least $25,000,000, and
which is authorized under such laws to exercise corporate trust powers and is
subject to supervision or examination by federal, state or District of Columbia
authority, or a corporation or other Person permitted to act as trustee by the
Commission. If such corporation publishes reports of condition at least
annually, pursuant to law or to the requirements of the aforesaid supervising or
examining authority, then for the purposes of this Section, the combined capital
and surplus of such corporation shall be deemed to be its combined capital and
surplus as set forth in its most recent report of condition so published. No
obligor upon the Securities or any Affiliate of such obligor shall serve as
trustee upon the Securities. In case at any time the Trustee shall cease to be
eligible in accordance with the provisions of this Section 6.9, the Trustee
shall resign immediately in the manner and with the effect specified in Section
6.10.

      A different Trustee may be appointed by the Issuer for any series of
Securities prior to the issuance of such Securities. If the initial Trustee for
any series of Securities is to be a trustee other than State Street Bank and
Trust Company, the Issuer and such Trustee shall, prior to the issuance of such
Securities, execute and deliver an indenture supplemental hereto, which shall
provide for the appointment of such Trustee as Trustee for the Securities of
such series and 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.

      SECTION 6.10 Resignation and Removal; Appointment of Successor Trustee.
(a) The Trustee, or any trustee or trustees hereafter appointed, may at any time
resign with respect to one or more or all series of Securities by giving written
notice of resignation to the Issuer. Upon receiving such notice of resignation,
the Issuer shall promptly appoint a successor trustee or trustees with respect
to the applicable series by written instrument in duplicate, executed by
authority of the Board of Directors, one copy of which instrument shall be
delivered to the resigning trustee and one copy to the successor trustee or
trustees. If no successor trustee shall have been so appointed with respect to
any series and have accepted appointment within 30 days after the mailing of
such notice of resignation, the resigning trustee may petition any court of
competent jurisdiction for the appointment of a successor trustee, or any
Securityholder who has been a bona fide Holder of a Security or Securities of

<PAGE>   46
                                                                              39


the applicable series for at least six months may, subject to the provisions of
Article Five, on behalf of himself and all others similarly situated, petition
any such court for the appointment of a successor trustee. Such court may
thereupon, after such notice, if any, as it may deem proper and prescribe,
appoint a successor trustee.

      (b) In case at any time any of the following shall occur:

            (i) the Trustee shall fail to comply with the provisions of Section
      6.8 with respect to any series of Securities after written request
      therefor by the Issuer or by any Securityholder who has been a bona fide
      Holder of a Security or Securities of such series for at least six months;
      or

            (ii) the Trustee shall cease to be eligible in accordance with the
      provisions of Section 6.9 and shall fail to resign after written request
      therefor by the Issuer or by any such Securityholder; or

            (iii) the Trustee shall become incapable of acting with respect to
      any series of Securities, or shall be adjudged a bankrupt or insolvent, or
      a receiver or liquidator 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, the Issuer may remove the Trustee with respect to the
applicable series of Securities and appoint a successor trustee for such series
by written instrument, in duplicate, executed by order of the Board of Directors
one copy of which instrument shall be delivered to the Trustee so removed and
one copy to the successor trustee, or, subject to the provisions of Article
Five, any Securityholder who has been a bona fide Holder of a Security or
Securities 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 removal of the Trustee and the appointment of a successor trustee with
respect to such series. Such court may thereupon, after such notice, if any, as
it may deem proper and prescribe, remove the Trustee and appoint a successor
trustee.

      (c) The Holders of a majority in aggregate principal amount of the
Securities of each series then Outstanding may at any time remove the Trustee
with respect to Securities of such series and appoint a successor trustee with
respect to the Securities of such series by delivering to the Trustee so
removed, to the successor trustee so appointed and to the Issuer the evidence
provided for in Section 7.1 of the action in that regard taken by the
Securityholders. If no successor trustee shall have been so appointed with
respect to any series and have accepted appointment within 30 days after the
delivery of such evidence of removal, the Trustee may petition any court of
competent jurisdiction for the appointment of a successor trustee, or any
Securityholder who has been a bona fide Holder of a Security or Securities of
the applicable series for at least six months may, subject to the provisions of
Section 5.9, on behalf of himself and all others similarly situated, petition
any such court for the appointment of a successor trustee. Such court may
thereupon, after such notice, if any, as it may deem proper and prescribe,
appoint a successor trustee.

<PAGE>   47
                                                                              40


      (d) Any resignation or removal of the Trustee with respect to any series
and any appointment of a successor trustee with respect to such series pursuant
to any of the provisions of this Section 6.10 shall become effective upon
acceptance of appointment by the successor trustee as provided in Section 6.11.

      SECTION 6.11 Acceptance of Appointment by Successor Trustee. Any successor
trustee appointed as provided in Section 6.10 shall execute and deliver to the
Issuer and to its predecessor trustee an instrument accepting such appointment
hereunder, and thereupon the resignation or removal of the predecessor trustee
with respect to all or any applicable series shall become effective and such
successor trustee, without any further act, deed or conveyance, shall become
vested with all rights, powers, duties and obligations with respect to such
series of its predecessor hereunder, with like effect as if originally named as
trustee for such series hereunder; but, nevertheless, on the written request of
the Issuer or of the successor trustee, upon payment of its charges then unpaid,
the trustee ceasing to act shall, subject to Section 10.4, pay over to the
successor trustee all moneys at the time held by it hereunder and shall execute
and deliver an instrument transferring to such successor trustee all such
rights, powers, duties and obligations. Upon request of any such successor
trustee, the Issuer shall execute any and all instruments in writing for more
fully and certainly vesting in and confirming to such successor trustee all such
rights, powers duties and obligations. Any trustee ceasing to act shall,
nevertheless, retain a prior claim upon all property or funds held or collected
by such trustee to secure any amounts then due it pursuant to the provisions of
Section 6.6.

      If a successor trustee is appointed with respect to the Securities of one
or more (but not all) series, the Issuer, the predecessor Trustee and each
successor trustee with respect to the Securities of any applicable series shall
execute and deliver an indenture supplemental hereto which shall contain such
provisions as shall be deemed necessary or desirable to confirm that all the
rights, powers, trusts and duties of the predecessor Trustee with respect to the
Securities of any series as to which the predecessor Trustee is not retiring
shall continue to be vested in the predecessor Trustee, and 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 under separate
indentures.

      No successor trustee with respect to any series of Securities shall accept
appointment as provided in this Section 6.11 unless at the time of such
acceptance such successor trustee shall be qualified under the provisions of
Section 6.8 and eligible under the provisions of Section 6.9.

      Upon acceptance of appointment by any successor trustee as provided in
this Section 6.11, the Issuer shall give notice thereof to the Holders of
Securities of each series affected, by mailing such notice to such Holders at
their addresses as they shall appear on the registry books. If the Issuer fails
to give such notice within ten days after acceptance of appointment by the
successor trustee, the successor trustee shall cause such notice to be given at
the expense of the Issuer.

<PAGE>   48
                                                                              41


      SECTION 6.12 Merger, Conversion, Consolidation or Succession to Business
of Trustee. 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 of the corporate trust
business of the Trustee, shall be the successor of the Trustee hereunder,
provided that such corporation shall be qualified under the provisions of
Section 6.8 and eligible under the provisions of Section 6.9, without the
execution or filing of any paper or any further act on the part of any of the
parties hereto, anything herein to the contrary notwithstanding.

      In case at the time such successor to the Trustee shall succeed to the
trusts created by this Indenture any of the Securities of any series shall have
been authenticated but not delivered, any such successor to the Trustee may
adopt the certificate of authentication of any predecessor Trustee and deliver
such Securities so authenticated; and, in case at that time any of the
Securities of any series shall not have been authenticated, any successor to the
Trustee may authenticate such Securities either in the name of any predecessor
hereunder or in the name of the successor Trustee; and in all such cases such
certificate shall have the full force which it is anywhere in the Securities of
such series or in this Indenture provided that the certificate of the Trustee
shall have; provided, that the right to adopt the certificate of authentication
of any predecessor Trustee or to authenticate Securities of any series in the
name of any predecessor Trustee shall apply only to its successor or successors
by merger, conversion or consolidation.

      SECTION 6.13 Preferential Collection of Claims Against the Issuer. The
Trustee shall comply with Section 311(a) of the Trust Indenture Act of 1939,
excluding any creditor relationship listed in Section 311(b) of the Trust
Indenture Act of 1939. A Trustee who has resigned or been removed shall be
subject to Section 311(a) of the Trust Indenture Act of 1939 to the extent
indicated therein.

      SECTION 6.14 Appointment of Authenticating Agent. As long as any
Securities of a series remain Outstanding, the Trustee may, by an instrument in
writing, appoint with the approval of the Issuer an authenticating agent (the
"Authenticating Agent") which shall be authorized to act on behalf of the
Trustee to authenticate Securities, including Securities issued upon exchange,
registration of transfer, partial redemption or pursuant to Section 2.9.
Securities of each such series authenticated by such Authenticating Agent shall
be entitled to the benefits of this Indenture and shall be valid and obligatory
for all purposes as if authenticated by the Trustee. Whenever reference is made
in this Indenture to the authentication and delivery of Securities of any series
by the Trustee or to 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 for such series and a Certificate of Authentication
executed on behalf of the Trustee by such Authenticating Agent. Such
Authenticating Agent shall at all times be a corporation organized and doing
business under the laws of the United States of America or of any state or the
District of Columbia, authorized under such laws to exercise corporate trust
powers, having a combined capital and surplus of at least $25,000,000
(determined as provided in Section 6.9 with respect to the Trustee) and subject
to supervision or examination by federal or state authority.

<PAGE>   49
                                                                              42


      Any corporation into which any 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 any Authenticating Agent
shall be a party, or any corporation succeeding to the corporate agency business
of any Authenticating Agent, shall continue to be the Authenticating Agent with
respect to all series of Securities for which it served as Authenticating Agent
without the execution or filing of any paper or any further act on the part of
the Trustee or such Authenticating Agent. Any Authenticating Agent may at any
time, and if it shall cease to be eligible shall, resign by giving written
notice of resignation to the Trustee and to the Issuer. The Trustee may at any
time terminate the agency of an Authenticating Agent by giving written notice
thereof to such Authenticating Agent and to the Issuer.

      Upon receiving such a notice of resignation or upon such a termination, or
in case at any time any Authenticating Agent shall cease to be eligible in
accordance with the provisions of this Section 6.14 with respect to one or more
series of Securities, the Trustee may appoint a successor Authenticating Agent
which shall be acceptable to the Issuer and the Issuer shall provide notice of
such appointment to all Holders of Securities of such series in the manner and
to the extent provided in Section 11.4. Any successor Authenticating Agent upon
acceptance of its appointment hereunder shall become vested with all rights,
powers, duties and responsibilities of its predecessor hereunder, with like
effect as if originally named as Authenticating Agent. The Issuer agrees to pay
to the Authenticating Agent for such series from time to time reasonable
compensation. The Authenticating Agent for the Securities of any series shall
have no responsibility or liability for any action taken by it as such at the
direction of the Trustee.

      Sections 6.2, 6.3, 6.4 and 7.3 shall be applicable to any Authenticating
Agent.

                                  ARTICLE SEVEN
                         CONCERNING THE SECURITYHOLDERS

      SECTION 7.1 Evidence of Action Taken by Securityholders. Any request,
demand, authorization, direction, notice, consent, waiver or other action
provided by this Indenture to be given or taken by a specified percentage in
principal amount of the Securityholders of any or all series may be embodied in
and evidenced by one or more instruments of substantially similar tenor signed
by such specified percentage of Securityholders in person or by 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. Proof of execution of any instrument or of a writing appointing
any such agent shall be sufficient for any purpose of this Indenture and
(subject to Sections 6.1 and 6.2) conclusive in favor of the Trustee and the
Issuer, if made in the manner provided in this Article Seven.

      SECTION 7.2 Proof of Execution of Instruments and of Holding of
Securities. Subject to Sections 6.1 and 6.2, the execution of any instrument by
a Securityholder or his agent or proxy may be proved in the following manner:

<PAGE>   50
                                                                              43


            (a) The fact and date of the execution by any Holder of any
      instrument may be proved by the certificate of any notary public or other
      officer of any jurisdiction authorized to take acknowledgments of deeds or
      administer oaths that the person executing such instruments acknowledged
      to him the execution thereof, or by an affidavit of a witness to such
      execution sworn to before any such notary or other such officer. Where
      such execution is by or on behalf of any legal entity other than an
      individual, such certificate or affidavit shall also constitute sufficient
      proof of the authority of the person executing the same.

            (b) The ownership of Securities shall be proved by the Security
      register or by a certificate of the Security registrar.

      SECTION 7.3 Holders to be Treated as Owners. The Issuer, the Trustee and
any agent of the Issuer or the Trustee may deem and treat the Person in whose
name any Security shall be registered upon the Security register for such series
as the absolute owner of such Security (whether or not such Security shall be
overdue and notwithstanding any notation of ownership or other writing thereon)
for the purpose of receiving payment of or on account of the principal of and,
subject to the provisions of this Indenture, interest, if any, on such Security
and for all other purposes; and neither the Issuer nor the Trustee nor any agent
of the Issuer or the Trustee shall be affected by any notice to the contrary.

      SECTION 7.4 Securities Owned by Issuer Deemed Not Outstanding. In
determining whether the Holders of the requisite aggregate principal amount of
Outstanding Securities of any or all series have concurred in any direction,
consent or waiver under this Indenture, Securities which are owned by the Issuer
or any other obligor on the Securities with respect to which such determination
is being made or by any Affiliate of the Issuer or by any other obligor on the
Securities with respect to which such determination is being made shall be
disregarded and deemed not to be Outstanding for the purpose of any such
determination, except that for the purpose of determining whether the Trustee
shall be protected in relying on any such direction, consent or waiver only
Securities which a Responsible Officer of the Trustee knows are 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 Issuer or any other obligor upon the Securities or any
Affiliate of the Issuer or any other obligor on the Securities. In case of a
dispute as to such right, the advice of counsel shall be full protection in
respect of any decision made by the Trustee in accordance with such advice. Upon
request of the Trustee, the Issuer shall furnish to the Trustee promptly an
Officers' Certificate listing and identifying all Securities, if any, known by
the Issuer to be owned or held by or for the account of any of the
above-described Persons; and, subject to Sections 6.1 and 6.2, the Trustee shall
be entitled to accept such Officers' Certificate as conclusive evidence of the
facts therein set forth and of the fact that all Securities not listed therein
are Outstanding for the purpose of any such determination.

      SECTION 7.5 Right of Revocation of Action Taken. At any time prior to (but
not after) the evidencing to the Trustee, as provided in Section 7.1, of the
taking of any action by the Holders of the percentage in aggregate principal
amount of the Securities of any or all

<PAGE>   51
                                                                              44


series, as the case may be, specified in this Indenture in connection with such
action, any Holder of a Security the serial number of which is shown by the
evidence to be included among the serial numbers of the Securities the Holders
of which have consented to such action may, by filing written notice at the
Corporate Trust Office and upon proof of holding as provided in this Article
Seven, revoke such action so far as concerns such Security provided that such
revocation shall not become effective until three Business Days after such
filing. Except as aforesaid, any such action taken by the Holder of any Security
shall be conclusive and binding upon such Holder and upon all future Holders and
owners of such Security and of any Securities issued in exchange or substitution
therefor or on registration of transfer thereof, irrespective of whether or not
any notation in regard thereto is made upon any such Security. Any action taken
by the Holders of the percentage in aggregate principal amount of the Securities
of any or all series, as the case may be, specified in this Indenture in
connection with such action shall be conclusively binding upon the Issuer, the
Trustee and the Holders of all the Securities affected by such action.

      SECTION 7.6 Record Date for Consents and Waivers. The Issuer may, but
shall not be obligated to, establish a record date for the purpose of
determining the Persons entitled to (a) waive any past Event of Default with
respect to the Securities of such series in accordance with Section 5.7 of the
Indenture, (b) consent to any supplemental indenture in accordance with Section
8.2 of the Indenture or (c) waive compliance with any term, condition or
provision of any covenant hereunder. If a record date is fixed, the Holders on
such record date, or their duly designated proxies, and any such Persons, shall
be entitled to waive any such past default, consent to any such supplemental
indenture or waive compliance with any such term, condition or provision,
whether or not such Holder remains a Holder after such record date; provided,
however, that unless such waiver or consent is obtained from the Holders, or
duly designated proxies, of the requisite principal amount of Outstanding
Securities of such series prior to the date which is the 180th day after such
record date, any such waiver or consent previously given shall automatically
and, without further action by any Holder be cancelled and of no further effect.

                                  ARTICLE EIGHT
                             SUPPLEMENTAL INDENTURES

      SECTION 8.1 Supplemental Indentures Without Consent of Securityholders.
The Issuer, when authorized by a Board Resolution (which resolution may provide
general terms or parameters for such action and may provide that the specific
terms of such action may be determined in accordance with or pursuant to an
Issuer Order), and the Trustee may from time to time and at any time enter into
an indenture or indentures supplemental hereto (which shall conform to the
provisions of the Trust Indenture Act of 1939 as in force at the date of the
execution thereof) for one or more of the following purposes:

            (a) to convey, transfer, assign, mortgage or pledge to the Trustee
      as security for the Securities of one or more series any property or
      assets;

<PAGE>   52
                                                                              45


            (b) to evidence the succession of another Person to the Issuer, or
      successive successions, and the assumption by the successor Person of the
      covenants, agreements and obligations of the Issuer pursuant to Article
      Nine;

            (c) to add to the covenants of the Issuer such further covenants,
      restrictions, conditions or provisions as the Issuer and the Trustee shall
      consider to be for the protection of the Holders of all or any series of
      Securities (and if such covenants, restrictions, conditions or provisions
      are to be for the protection of less than all series of Securities,
      stating that the same are expressly being included solely for the
      protection of such series) and to make the occurrence, or the occurrence
      and continuance, of a default in any such additional covenants,
      restrictions, conditions or provisions an Event of Default permitting the
      enforcement of all or any of the several remedies provided in this
      Indenture as herein set forth; provided, however, that in respect of any
      such additional covenant, restriction, condition or provision such
      supplemental indenture may provide for a particular period of grace after
      default (which period may be shorter or longer than that allowed in the
      case of other defaults) or may provide for an immediate enforcement upon
      such an Event of Default or may limit the remedies available to the
      Trustee upon such an Event of Default or may limit the right of the
      Holders of a majority in aggregate principal amount of the Securities of
      such series to waive such an Event of Default;

            (d) to cure any ambiguity or to correct or supplement any provision
      contained herein or in any supplemental indenture which may be defective
      or inconsistent with any other provision contained herein or in any
      supplemental indenture, or to make any other provisions as the Issuer may
      deem necessary or desirable, provided, however, that no such action shall
      materially adversely affect the interests of the Holders of the
      Securities;

            (e) to establish the form or terms of Securities of any series as
      permitted by Sections 2.1 and 2.3;

            (f) to provide for the issuance of Securities of any series in
      coupon form (including Securities registrable as to principal only) and to
      provide for exchangeability of such Securities for the Securities issued
      hereunder in fully registered form and to make all appropriate changes for
      such purpose;

            (g) to modify, eliminate or add to the provisions of this Indenture
      to such extent as shall be necessary to effect the qualification of this
      Indenture under the Trust Indenture Act of 1939, or under any similar
      federal statute hereafter enacted, and to add to this Indenture such other
      provisions as may be expressly permitted by the Trust Indenture Act of
      1939, excluding, however, the provisions referred to in Section 316(a)(2)
      of the Trust Indenture Act of 1939 as in effect at the date as of which
      this instrument was executed or any corresponding provision provided for
      in any similar federal statute hereafter enacted;

<PAGE>   53
                                                                              46


            (h) to evidence and provide for the acceptance of appointment
      hereunder of a Trustee other than State Street Bank and Trust Company as
      Trustee for a series of Securities and to 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, pursuant to the requirements of Section 6.9 hereof;

            (i) subject to Section 8.2 hereof, to add to or modify the
      provisions hereof as may be necessary or desirable to provide for the
      denomination of Securities in foreign currencies which shall not adversely
      affect the interests of the Holders of the Securities in any material
      respect;

            (j) to modify the covenants or Events of Default of the Issuer
      solely in respect of, or add new covenants or Events of Default of the
      Issuer that apply solely to, Securities not Outstanding on the date of
      such supplemental indenture; and

            (k) to evidence and provide for the acceptance of appointment
      hereunder by a successor trustee with respect to the Securities of one or
      more series and to 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, pursuant
      to the requirements of Section 6.11.

      The Trustee is hereby authorized to join with the Issuer in the execution
of any such supplemental indenture, to make any further appropriate agreements
and stipulations which may be therein contained and to accept the conveyance,
transfer, assignment, mortgage or pledge of any property thereunder, but the
Trustee 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.

      Any supplemental indenture authorized by the provisions of this Section
may be executed without the consent of the Holders of any of the Securities then
Outstanding, notwithstanding any of the provisions of Section 8.2.

      SECTION 8.2 Supplemental Indentures with Consent of Securityholders. With
the consent (evidenced as provided in Article Seven) of the Holders of not less
than a majority in aggregate principal amount of the Securities then Outstanding
of any series affected by such supplemental indenture, the Issuer, when
authorized by a Board Resolution (which resolution may provide general terms or
parameters for such action and may provide that the specific terms of such
action may be determined in accordance with or pursuant to an Issuer Order), and
the Trustee may, from time to time and at any time, enter into an indenture or
indentures supplemental hereto (which shall conform to the provisions of the
Trust Indenture Act of 1939 as in force at the date of execution thereof) for
the purpose of adding any provisions to or changing in any manner or eliminating
any of the provisions of this Indenture or of any supplemental indenture or of
modifying in any manner the rights of the Holders of the Securities of such
series; provided that no such supplemental indenture shall (a) extend the stated
final maturity of the principal of any Security, or reduce the principal amount
thereof, or reduce the rate or extend the time of payment of interest, if any,
thereon (or, in the case of

<PAGE>   54
                                                                              47


an Original Issue Discount Security, reduce the rate of accretion of original
issue discount thereon), or reduce or alter the method of computation of any
amount payable on redemption, repayment or purchase by the Issuer thereof (or
the time at which any such redemption, repayment or purchase may be made), or
make the principal thereof (including any amount in respect of original issue
discount), or interest, if any, thereon payable in any coin or currency other
than that provided in the Securities or in accordance with the terms of the
Securities, or reduce the amount of the principal of an Original Issue Discount
Security that would be due and payable upon an acceleration of the maturity
thereof or the amount thereof provable in bankruptcy in each case pursuant to
Section Article Five, or impair or affect the right of any Securityholder to
institute suit for the payment thereof or, if the Securities provide therefor,
any right of repayment or purchase at the option of the Securityholder, in each
case without the consent of the Holder of each Security so affected, or (b)
reduce the aforesaid percentage of Securities of any series, the consent of the
Holders of which is required for any such supplemental indenture, without the
consent of the Holders of each Security so affected. No consent of any Holder of
any Security shall be necessary under this Section 8.2 to permit the Trustee and
the Issuer to execute supplemental indentures pursuant to Sections 8.1 and 9.2.

      A supplemental indenture which changes or eliminates any covenant, Event
of Default 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 Holders of Securities of such series, with
respect to such covenant or provision, shall be deemed not to affect the rights
under this Indenture of the Holders of Securities of any other series.

      Upon the request of the Issuer, accompanied by a copy of a resolution of
the Board of Directors (which resolution may provide general terms or parameters
for such action and may provide that the specific terms of such action may be
determined in accordance with or pursuant to an Issuer Order) certified by the
secretary or an assistant secretary of the Issuer authorizing the execution of
any such supplemental indenture, and upon the filing with the Trustee of
evidence of the consent of the Holders of the Securities as aforesaid and other
documents, if any, required by Section 7.1, the Trustee shall join with the
Issuer in the execution of such supplemental indenture unless such supplemental
indenture affects the Trustee's own rights, duties or immunities under this
Indenture or otherwise, in which case the Trustee may at its discretion, but
shall not be obligated to, enter into such supplemental indenture.

      It shall not be necessary for the consent of the Securityholders under
this Section 8.2 to approve the particular form of any proposed supplemental
indenture, but it shall be sufficient if such consent shall approve the
substance thereof.

      Promptly after the execution by the Issuer and the Trustee of any
supplemental indenture pursuant to the provisions of this Section 8.2, the
Issuer (or the Trustee at the request and expense of the Issuer) shall give
notice thereof to the Holders of then Outstanding Securities of each series
affected thereby, as provided in Section 11.4. Any failure of the Issuer to give
such notice, or any defect therein, shall not, however, in any way impair or
affect the validity of any such supplemental indenture.

<PAGE>   55
                                                                              48


      SECTION 8.3 Effect of Supplemental Indenture. Upon the execution of any
supplemental indenture pursuant to the provisions hereof, this Indenture shall
be and shall be deemed to be modified and amended in accordance therewith and
the respective rights, limitations of rights, obligations, duties and immunities
under this Indenture of the Trustee, the Issuer and the Holders of Securities of
each series affected thereby shall thereafter be determined, exercised and
enforced hereunder subject in all respects to such modifications and amendments,
and all the terms and conditions of any such supplemental indenture shall be and
shall be deemed to be part of the terms and conditions of this Indenture for any
and all purposes.

      SECTION 8.4 Documents to Be Given to Trustee. The Trustee, subject to the
provisions of Sections 6.1 and 6.2, shall be entitled to receive an Officers'
Certificate and an Opinion of Counsel as conclusive evidence that any
supplemental indenture executed pursuant to this Article Eight complies with the
applicable provisions of this Indenture and that all conditions precedent to the
execution and delivery of such supplemental indenture have been satisfied.

      SECTION 8.5 Notation on Securities in Respect of Supplemental Indentures.
Securities of any series authenticated and delivered after the execution of any
supplemental indenture pursuant to the provisions of this Article Eight may bear
a notation in form approved by the Trustee for such series as to any matter
provided for by such supplemental indenture or as to any action taken by
Securityholders. If the Issuer or the Trustee shall so determine, new Securities
of any series so modified as to conform, in the opinion of the Trustee and the
Issuer, to any modification of this Indenture contained in any such supplemental
indenture may be prepared by the Issuer, authenticated by the Trustee and
delivered in exchange for the Securities of such series then Outstanding.

                                  ARTICLE NINE
                                   SUCCESSORS

      SECTION 9.1 When Issuer May Merge, etc. The Issuer may not consolidate or
merge with any other Person or sell, convey, assign, transfer, lease or
otherwise dispose of all or substantially all its properties and assets as an
entirety in one transaction or a series of transactions to any Person, unless:

            (a) either (i) the Issuer shall be the continuing corporation or
      (ii) such Person shall be a corporation, partnership or trust organized
      and validly existing under the laws of the United States or any State
      thereof or the District of Columbia, and shall expressly assume by a
      supplemental indenture all the Issuer's obligations under the Securities
      and this Indenture; and

            (b) immediately before and after such transaction or each element of
      such series of transactions, no Default or Event of Default shall have
      occurred and be continuing.

<PAGE>   56
                                                                              49


            The Issuer shall deliver to the Trustee prior to the consummation of
the proposed transaction an Officers' Certificate to the foregoing effect and an
Opinion of Counsel stating that the proposed transaction and such supplemental
indenture comply with this Indenture.

      SECTION 9.2 Successor Corporation Substituted. Upon any consolidation or
merger, or any sale, lease, conveyance or other disposition of all or
substantially all of the assets of the Issuer or any assignment of its
obligations under this Indenture or the Securities in accordance with Section
9.1, the successor corporation formed by such consolidation or into or with
which the Issuer is merged or to which such sale, lease, conveyance or other
disposition or assignment is made shall succeed to, and be substituted for, and
may exercise every right and power of, the Issuer under this Indenture with the
same effect as if such successor corporation had been named as the Issuer
herein; and, except in the case of a lease, the predecessor corporation shall be
relieved of all obligations and covenants under this Indenture and the
Securities.

                                   ARTICLE TEN
                    SATISFACTION AND DISCHARGE OF INDENTURE;
                      COVENANT DEFEASANCE; UNCLAIMED MONEYS

      SECTION 10.1 Satisfaction and Discharge of Indenture; Covenant Defeasance.

      (A) If at any time (a) the Issuer shall have paid or caused to be paid the
principal of, premium, if any, and interest, if any, on all the Securities
Outstanding (other than Securities which have been destroyed, lost or stolen and
which have been replaced or paid as provided in Section 2.9) as and when the
same shall have become due and payable, or (b) the Issuer shall have delivered
to the Trustee for cancellation all Securities theretofore authenticated (other
than Securities which have been destroyed, lost or stolen and which have been
replaced or paid as provided in Section 2.9); and if, in any such case, the
Issuer shall also pay or cause to be paid all other sums payable hereunder by
the Issuer (including all amounts, payable to the Trustee pursuant to Section
6.6), then this Indenture shall cease to be of further effect, and the Trustee,
on demand of the Issuer accompanied by an Officers' Certificate and an Opinion
of Counsel, each stating that all conditions precedent relating to the
satisfaction and discharge contemplated by this provision have been complied
with, and at the cost and expense of the Issuer, shall execute proper
instruments acknowledging such satisfaction and discharging this Indenture. The
Issuer agrees to reimburse the Trustee for any costs or expenses thereafter
reasonably and properly incurred, and to compensate the Trustee for any services
thereafter reasonably and properly rendered, by the Trustee in connection with
this Indenture or the Securities.

      (B) If at any time (a) the Issuer shall have paid or caused to be paid the
principal of, premium, if any, and interest, if any, on all the Securities of
any series Outstanding (other than Securities of such series which have been
destroyed, lost or stolen and which have been replaced or paid as provided in
Section 2.9) as and when the same shall have become due and

<PAGE>   57
                                                                              50


payable, or (b) the Issuer shall have delivered to the Trustee for cancellation
all Securities of any series theretofore authenticated (other than any
Securities of such series which have been destroyed, lost or stolen and which
have been replaced or paid as provided in Section 2.9), or (c) in the case of
any series of Securities with respect to which the exact amount described in
clause (ii) below can be determined at the time of making the deposit referred
to in such clause (ii), (i) all the Securities of such series not theretofore
delivered to the Trustee for cancellation shall have become due and payable, or
by their terms are to become due and payable within one year or are to be called
for redemption within one year under arrangements satisfactory to the Trustee
for the giving of notice of redemption, and (ii) the Issuer shall have
irrevocably deposited or caused to be deposited with the Trustee as funds in
trust, specifically pledged as security for, and dedicated solely to, the
benefit of the Holders of Securities of such series, cash in an amount (other
than moneys repaid by the Trustee or any paying agent to the Issuer in
accordance with Section 10.4) or non-callable, nonprepayable bonds, notes, bills
or other similar obligations issued or guaranteed by the United States
government or any agency thereof the full and timely payment of which are backed
by the full faith and credit of the United States ("U.S. Government
Obligations"), maturing as to principal and interest, if any, at such times and
in such amounts as will insure the availability of cash, or a combination
thereof, sufficient in the opinion of a nationally recognized firm of
independent public accountants expressed in a written certification thereof
delivered to the Trustee, to pay (1) the principal of, premium, if any, and
interest, if any, on all Securities of such series on each date that such
principal of, premium, if any, or interest, if any, is due and payable, and (2)
any mandatory sinking fund payments on the dates on which such payments are due
and payable in accordance with the terms of the Indenture and the Securities of
such series; then the Issuer shall be deemed to have paid and discharged the
entire indebtedness on all the Securities of such series on the date of the
deposit referred to in clause (ii) above and the provisions of this Indenture
with respect to the Securities of such series shall no longer be in effect
(except, in the case of clause (c) of this Section 10.1(B), as to (i) rights of
registration of transfer and exchange of Securities of such series, (ii) rights
of substitution of mutilated, defaced, destroyed, lost or stolen Securities of
such series, (iii) rights of Holders of Securities of such series to receive
payments of principal thereof and premium, if any, and interest, if any, thereon
upon the original stated due dates therefor (but not upon acceleration), and
remaining rights of the Holders of Securities of such series to receive
mandatory sinking fund payments thereon, if any, when due, (iv) the rights,
obligations, duties and immunities of the Trustee hereunder, (v) the rights of
the Holders of Securities of such series as beneficiaries hereof with respect to
the property so deposited with the Trustee payable to all or any of them and
(vi) the obligations of the Issuer under Section 3.2 with respect to Securities
of such series) and the Trustee, on demand of the Issuer accompanied by an
Officers' Certificate and an Opinion of Counsel, each stating that all
conditions precedent contemplated by this provision have been complied with, and
at the cost and expense of the Issuer, shall execute proper instruments
acknowledging the same.

      (C) The following provisions shall apply to the Securities of each series
unless specifically otherwise provided in a Board Resolution, Officers'
Certificate or indenture supplemental hereto provided pursuant to Section 2.3.
In addition to discharge of the Indenture pursuant to the next preceding
paragraph, in the case of any series of Securities with respect to which the
exact amount described in subparagraph (a) below can be

<PAGE>   58
                                                                              51


determined at the time of making the deposit referred to in such subparagraph
(a), the Issuer shall be deemed to have paid and discharged the entire
indebtedness on all the Securities of such a series on the 91st day after the
date of the deposit referred to in subparagraph (a) below, and the provisions of
this Indenture with respect to the Securities of such series shall no longer be
in effect (except as to (i) rights of registration of transfer and exchange of
Securities of such series, (ii) substitution of mutilated, defaced, destroyed,
lost or stolen Securities of such series, (iii) rights of Holders of Securities
of such series to receive payments of principal thereof, premium, if any, and
interest, if any, thereon upon the original stated due dates therefor (but not
upon acceleration), and remaining rights of the Holders of Securities of such
series to receive mandatory sinking fund payments, if any, (iv) the rights,
obligations, duties and immunities of the Trustee hereunder, (v) the rights of
the Holders of Securities of such series as beneficiaries hereof with respect to
the property so deposited with the Trustee payable to all or any of them and
(vi) the obligations of the Issuer under Section 3.2 with respect to Securities
of such series) and the Trustee, on demand of the Issuer accompanied by an
Officers' Certificate and an Opinion of Counsel, each stating that all
conditions precedent contemplated by this provision have been complied with, and
at the cost and expense of the Issuer, shall execute proper instruments
acknowledging the same, if

            (a) with reference to this provision the Issuer has irrevocably
      deposited or caused to be irrevocably deposited with the Trustee as funds
      in trust, specifically pledged as security for, and dedicated solely to,
      the benefit of the Holders of Securities of such series (i) cash in an
      amount, or (ii) U.S. Government Obligations, maturing as to principal and
      interest, if any, at such times and in such amounts as will insure the
      availability of cash, or (iii) a combination thereof, sufficient, in the
      opinion of a nationally recognized firm of independent public accountants
      expressed in a written certification thereof delivered to the Trustee, to
      pay (A) the principal of, premium, if any, and interest, if any, on all
      Securities of such series on each date that such principal or interest, if
      any, is due and payable, and (B) any mandatory sinking fund payments on
      the dates on which such payments are due and payable in accordance with
      the terms of the Indenture and the Securities of such series;

            (b) such deposit will not result in a breach or violation of, or
      constitute a default under, any agreement or instrument to which the
      Issuer is a party or by which it is bound; and

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

<PAGE>   59
                                                                              52


      (D) The following provisions shall apply to the Securities of each series
unless specifically otherwise provided in a Board Resolution, Officers'
Certificate or indenture supplemental hereto provided pursuant to Section 2.3.
In addition to the foregoing, in the case of any series of Securities with
respect to which the exact amount described in subparagraph (a) below can be
determined at the time of making the deposit referred to in such subparagraph
(a), the Issuer shall be deemed to be, and shall be, released from its
obligations under Sections 3.6 and 3.7 hereof on the 91st day after the date of
the deposit referred to in subparagraph (a) below, and the Issuer's obligations
under all Securities of such series and this Indenture with respect to Sections
3.6 and 3.7 hereof shall thereafter be deemed to be discharged for the purposes
of any direction, waiver, consent or declaration (and the consequences of any
thereof) in connection therewith but shall continue in full force and effect for
all other purposes hereunder, and the Trustee, on demand of the Issuer
accompanied by an Officers' Certificate and an Opinion of Counsel, each stating
that all conditions precedent contemplated by this provision have been complied
with, and at the cost and expense of the Issuer, shall execute proper
instruments acknowledging the same, if

            (a) with reference to this provision the Issuer has irrevocably
      deposited or caused to be irrevocably deposited with the Trustee as funds
      in trust, specifically pledged as security for, and dedicated solely to,
      the benefit of the Holders of Securities of such series (i) cash in an
      amount, or (ii) U.S. Government Obligations, maturing as to principal and
      interest, if any, at such times and in such amounts as will insure the
      availability of cash, or (iii) a combination thereof, sufficient, in the
      opinion of a nationally recognized firm of independent public accountants
      expressed in a written certification thereof delivered to the Trustee, to
      pay (A) the principal of, premium, if any, and interest, if any, on all
      Securities of such series on each date that such principal or interest, if
      any, is due and payable, and (B) any mandatory sinking fund payments on
      the dates on which such payments are due and payable in accordance with
      the terms of the Indenture and the Securities of such series; and

            (b) such deposit will not result in a breach or violation of, or
      constitute a default under, any agreement or instrument to which the
      Issuer is a party or by which it is bound; and

            (c) the Issuer has delivered to the Trustee an Opinion of Counsel to
      the effect that, and such opinion shall confirm that, the Holders of the
      Securities of such series will not recognize income, gain or loss for
      Federal income tax purposes as a result of such deposit, defeasance and
      discharge and will be subject to Federal income tax on the same amount and
      in the same manner and at the same times, as would have been the case if
      such deposit, defeasance and discharge had not occurred.

      SECTION 10.2 Application by Trustee of Funds Deposited for Payment of
Securities. Subject to Section 10.4, all moneys and U.S. Government Obligations
deposited with the Trustee pursuant to Section 10.1 shall be held in trust, and
such moneys and all moneys from such U.S. Government Obligations shall be
applied by it to the payment, either directly or through any paying agent
(including the Issuer acting as its own paying agent), to the Holders of the
particular Securities of such series for the payment or redemption of which such

<PAGE>   60
                                                                              53


moneys and U.S. Government Obligations have been deposited with the Trustee, of
all sums due and to become due thereon for principal and interest, if any, but
such moneys and U.S. Government Obligations need not be segregated from other
funds except to the extent required by law.

      SECTION 10.3 Repayment of Moneys Held by Paying Agent. In connection with
the satisfaction and discharge of this Indenture with respect to Securities of
any series, all moneys then held by any paying agent under the provisions of
this Indenture with respect to such series of Securities shall, upon demand of
the Issuer, be repaid to it or paid to the Trustee and thereupon such paying
agent shall be released from all further liability with respect to such moneys.

      SECTION 10.4 Return of Moneys Held by Trustee and Paying Agent Unclaimed
for Two Years. Any moneys deposited with or paid to the Trustee or any paying
agent for the payment of the principal of, premium, if any, or interest, if any,
on any Security of any series and not applied but remaining unclaimed for two
years after the date upon which such principal, premium, if any, or interest, if
any, shall have become due and payable, shall, upon the written request of the
Issuer and unless otherwise required by mandatory provisions of applicable
escheat or abandoned or unclaimed property law, be repaid to the Issuer by the
Trustee for such series or such paying agent, and the Holder of the Securities
of such series shall, unless otherwise required by mandatory provisions of
applicable escheat or abandoned or unclaimed property laws, thereafter look only
to the Issuer for any payment which such Holder may be entitled to collect, and
all liability of the Trustee or any paying agent with respect to such moneys
shall thereupon cease.

      SECTION 10.5 Indemnity for U.S. Government Obligations. The Issuer shall
pay and indemnify the Trustee against any tax, fee or other charge imposed on or
assessed against the U.S. Government Obligations deposited pursuant to Section
10.1 or the principal or interest received in respect of such obligations.

                                 ARTICLE ELEVEN
                            MISCELLANEOUS PROVISIONS

      SECTION 11.1 Partners, Incorporators, Stockholders, Officers and Directors
of Issuer Exempt from Individual Liability. No recourse under or upon any
obligation, covenant or agreement contained in this Indenture, or in any
Security, or because of any indebtedness evidenced thereby, shall be had against
any incorporator, as such or against any past, present or future stockholder,
officer or director, as such, of the Issuer, or any partner of the Issuer or of
any successor, either directly or through the Issuer or any successor, under any
rule of law, statute or constitutional provision or by the enforcement of any
assessment or by any legal or equitable proceeding or otherwise, all such
liability being expressly waived and released by the acceptance of the
Securities by the Holders thereof and as part of the consideration for the issue
of the Securities.

<PAGE>   61
                                                                              54


      SECTION 11.2 Provisions of Indenture for the Sole Benefit of Parties and
Holders of Securities. Nothing in this Indenture or in the Securities, expressed
or implied, shall give or be construed to give to any Person, other than the
parties hereto and their successors and the Holders of the Securities, any legal
or equitable right, remedy or claim under this Indenture or under any covenant
or provision herein contained, all such covenants and provisions being for the
sole benefit of the parties hereto and their successors and of the Holders of
the Securities.

      SECTION 11.3 Successors and Assigns of Issuer Bound by Indenture. All the
covenants, stipulations, promises and agreements in this Indenture contained by
or on behalf of the Issuer shall bind its successors and assigns, whether so
expressed or not.

      SECTION 11.4 Notices and Demands on Issuer, Trustee and Holders of
Securities. Any notice or demand which by any provision of this Indenture is
required or permitted to be given or served by the Trustee or by the Holders of
Securities to or on the Issuer, or as required pursuant to the Trust Indenture
Act of 1939, may be given or served by being deposited postage prepaid,
first-class mail (except as otherwise specifically provided herein) addressed
(until another address of the Issuer is filed by the Issuer with the Trustee) to
York International Corporation, 631 S. Richland Avenue, York, Pennsylvania
17403, Attention: Vice President and General Counsel. Any notice, direction,
request or demand by the Issuer or any Holder of Securities to or upon the
Trustee shall be deemed to have been sufficiently given or served by being
deposited postage prepaid, first-class mail (except as otherwise specifically
provided herein) addressed (until another address of the Trustee is filed by the
Trustee with the Issuer) to State Street Bank and Trust Company, 2 International
Place, Boston, Massachusetts 02110, Attention: Corporate Trust Department.

      Where this Indenture provides for notice to Holders of Securities, such
notice shall be sufficiently given (unless otherwise herein expressly provided)
if in writing and mailed, first-class postage prepaid, to each Holder entitled
thereto, at his last address as it appears in the Security register. 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, it shall be impracticable to mail notice to the Issuer when such notice
is required to be given pursuant to any provision of this Indenture, then any
manner of giving such notice as shall be reasonably satisfactory to the Trustee
shall be deemed to be sufficient notice.

      SECTION 11.5 Officers' Certificates and Opinions of Counsel; Statements to
Be Contained Therein. Upon any application or demand by the Issuer to the
Trustee to take any action under any of the provisions of this Indenture, or as
required pursuant to the Trust Indenture Act of 1939, the Issuer shall furnish
to the Trustee an Officers' Certificate stating that all conditions precedent
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 have been complied with, except that in
the case of any

<PAGE>   62
                                                                              55


such application or demand as to which the furnishing of such documents is
specifically required by any provision of this Indenture relating to such
particular application or demand, no additional certificate or opinion need be
furnished.

      Each certificate or opinion provided for in this Indenture (other than a
certificate provided pursuant to Section 3.3) and delivered to the Trustee with
respect to compliance with a condition or covenant provided for in this
Indenture shall include (a) a statement that the person making such certificate
or opinion has read such covenant or condition, (b) 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, (c) a statement
that, in the opinion of such person, he has made such examination or
investigation as is necessary to enable him to express an opinion as to whether
or not such covenant or condition has been complied with, and (d) a statement as
to whether or not, in the opinion of such person, such condition or covenant has
been complied with.

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

      Any certificate, statement or opinion of an officer of the Issuer or of
counsel may be based, insofar as it relates to accounting matters, upon a
certificate or opinion of or representations by an accountant or firm of
accountants in the employ of the Issuer, unless such officer or counsel, as the
case may be, knows that the certificate or opinion or representations with
respect to the accounting matters upon which his certificate, statement or
opinion may be based as aforesaid are erroneous, or in the exercise of
reasonable care should know that the same are erroneous.

      Any certificate or opinion of any independent firm of public accountants
filed with and directed to the Trustee shall contain a statement that such firm
is independent.

      SECTION 11.6 Payments Due on Saturdays, Sundays and Holidays. If the date
of maturity of principal of or interest, if any, on the Securities of any series
or the date fixed for redemption, purchase or repayment of any such Security
shall not be a Business Day, then payment of interest, if any, premium, if any,
or principal 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 date of
maturity or the date fixed for redemption, purchase or repayment, and, in the
case of payment, no interest shall accrue for the period after such date.

<PAGE>   63
                                                                              56


      SECTION 11.7 Conflict of Any Provision of Indenture with Trust Indenture
Act of 1939. If and to the extent that any provision of this Indenture limits,
qualifies or conflicts with another provision included in this Indenture which
is required to be included herein by any of Sections 310 to 317, inclusive, or
is deemed applicable to this Indenture by virtue of the provisions of the Trust
Indenture Act of 1939, such required provision shall control.

      SECTION 11.8 GOVERNING LAW. THIS INDENTURE AND EACH SECURITY SHALL BE
DEEMED TO BE A CONTRACT UNDER THE LAWS OF THE STATE OF NEW YORK AND FOR ALL
PURPOSES SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF SUCH
STATE.

      SECTION 11.9 Counterparts. This Indenture may be executed in any number of
counterparts, each of which shall be an original; but such counterparts shall
together constitute but one and the same instrument.

      SECTION 11.10 Effect of Headings. The Article and Section headings herein
and the Table of Contents are for convenience only and shall not affect the
construction hereof.

                                 ARTICLE TWELVE
                   REDEMPTION OF SECURITIES AND SINKING FUNDS

      SECTION 12.1 Applicability of Article. The provisions of this Article
shall be applicable to the Securities of any series which are redeemable before
their maturity or are subject to any sinking fund for the retirement of
Securities of a series except as otherwise specified, as contemplated by Section
2.3 for Securities of such series.

      SECTION 12.2 Notice of Redemption; Partial Redemptions. Notice of
redemption to the Holders of Securities of any series to be redeemed as a whole
or in part at the option of the Issuer or as required by any mandatory sinking
fund provision herein shall be given by mailing notice of such redemption by
first class mail, postage prepaid, at least 30 days and not more than 60 days
prior to the date fixed for redemption to such Holders of Securities of such
series at their last addresses as they shall appear in the Security register.
Any notice which is mailed in the manner herein provided shall be conclusively
presumed to have been duly given, whether or not the Holder receives the notice.
Failure to give notice by mail, or any defect in the notice to the Holder of any
Security of a series designated for redemption as a whole or in part shall not
affect the validity of the proceedings for the redemption of any other Security
of such series.

      The notice of redemption to each such Holder shall specify (i) the
principal amount of each Security of such series held by such Holder to be
redeemed, (ii) the date fixed for redemption, (iii) the redemption price, (iv)
the place or places of payment, (v) the CUSIP number relating to such
Securities, (vi) that payment will be made upon presentation and surrender of
such Securities, unless otherwise specified by the terms of such Securities,
(vii) whether such redemption is pursuant to the mandatory or optional sinking
fund, or both, if such be the case, and that the redemption is subject to
receipt by the Trustee of sufficient

<PAGE>   64
                                                                              57


funds, (viii) whether interest, if any, (or, in the case of Original Issue
Discount Securities, original issue discount) accrued to the date fixed for
redemption will be paid as specified in such notice and (ix) whether on and
after said date interest, if any, (or, in the case of Original Issue Discount
Securities, original issue discount) thereon or on the portions thereof to be
redeemed will cease to accrue. In case any Security of a series is to be
redeemed in part only, the notice of redemption shall state the portion of the
principal amount thereof to be redeemed and shall state that on and after the
date fixed for redemption, upon surrender of such Security, a new Security or
Securities of such series in principal amount equal to the unredeemed portion
thereof will be issued.

      The notice of redemption of Securities of any series to be redeemed at the
option of the Issuer or as required by any mandatory sinking fund provision
shall be given by the Issuer or, at the Issuer's request, by the Trustee in the
name and at the expense of the Issuer.

      On or before the redemption date specified in the notice of redemption
given as provided in this Section 12.2, the Issuer will deposit with the Trustee
or with one or more paying agents an amount of money sufficient to redeem on the
redemption date all the Securities of such series so called for redemption at
the appropriate redemption price, together with accrued interest, if any, to the
date fixed for redemption. The Issuer will deliver to the Trustee at least 60
days prior to the date fixed for redemption (unless a shorter notice period
shall be satisfactory to the Trustee) an Officers' Certificate stating the
aggregate principal amount of Securities to be redeemed. In case of a redemption
at the election of the Issuer prior to the expiration of any restriction on such
redemption, the Issuer shall deliver to the Trustee, prior to the giving of any
notice of redemption to Holders pursuant to this Section, an Officers'
Certificate stating that such restriction has been complied with.

      If less than all the Securities of a series are to be redeemed, the
Trustee shall select, in such manner as it shall deem appropriate and fair,
Securities of such series to be redeemed. Securities may be redeemed in part in
multiples equal to the minimum authorized denomination for Securities of such
series or any multiple thereof. The Trustee shall promptly notify the Issuer in
writing of the Securities of such series selected for redemption and, in the
case of any Securities of such series selected for partial redemption, the
principal amount thereof to be redeemed. So long as Securities of a series are
represented by a Global Security registered in the name of a nominee of the
Depositary, the particular Securities or portions thereof to be redeemed shall
be selected by the Depositary in such manner as it shall determine. For all
purposes of this Indenture, unless the context otherwise requires, all
provisions relating to the redemption of Securities of any series shall relate,
in the case of any Security redeemed or to be redeemed only in part, to the
portion of the principal amount of such Security which has been or is to be
redeemed.

      SECTION 12.3 Payment of Securities Called for Redemption. If notice of
redemption has been given as provided by this Article Twelve, the Securities or
portions of Securities specified in such notice shall become due and payable on
the date and at the place or places stated in such notice at the applicable
redemption price, together with interest, if any accrued to the date fixed for
redemption, and on and after said date (unless the Issuer shall default in the
payment of such Securities at the redemption price, together with interest, if
any, accrued

<PAGE>   65
                                                                              58


to said date) interest, if any (or, in the case of Original Issue Discount
Securities, original issue discount), on the Securities or portions of
Securities so called for redemption shall cease to accrue, and such Securities
shall cease from and after the date fixed for redemption (unless an earlier date
shall be specified in a Board Resolution, Officers' Certificate or executed
supplemental indenture referred to in Sections 2.1 and 2.3 by or pursuant to
which the form and terms of the Securities of such series were established)
except as provided in Sections 6.5 and 10.4, to be entitled to any benefit or
security under this Indenture, and the Holders thereof shall have no right in
respect of such Securities except the right to receive the redemption price
thereof and unpaid interest, if any, to the date fixed for redemption. On
presentation and surrender of such Securities at a place of payment specified in
said notice, said Securities or the specified portions thereof shall be paid and
redeemed by the Issuer at the applicable redemption price, together with
interest, if any, accrued thereon to the date fixed for redemption; provided
that payment of interest, if any, becoming due on or prior to the date fixed for
redemption shall be payable to the Holders of Securities registered as such on
the relevant record date subject to the terms and provisions of Sections 2.3 and
2.7 hereof.

      If any Security called for redemption shall not be so paid upon surrender
thereof for redemption, the redemption price shall, until paid or duly provided
for, bear interest from the date fixed for redemption at the rate of interest or
Yield to Maturity (in the case of an Original Issue Discount Security) borne by
such Security.

      Upon presentation of any Security redeemed in part only, the Issuer shall
execute and the Trustee shall authenticate and deliver to or on the order of the
Holder thereof, at the expense of the Issuer, a new Security or Securities of
such series, and of like tenor, of authorized denominations, in principal amount
equal to the unredeemed portion of the Security so presented.

      SECTION 12.4 Exclusion of Certain Securities from Eligibility for
Selection for Redemption. Securities shall be excluded from eligibility for
selection for redemption if they are identified by registration and certificate
number in an Officers' Certificate delivered to the Trustee at least 45 days
prior to the last date on which notice of redemption may be given as being owned
of record and beneficially by, and not pledged or hypothecated by either (a) the
Issuer, or (b) a Person specifically identified in such written statement as an
Affiliate of the Issuer.

      SECTION 12.5 Mandatory and Optional Sinking Funds. The minimum amount of
any sinking fund payment provided for by the terms of the 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 the
Securities of any series is herein referred to as an "optional sinking fund
payment." The date on which a sinking fund payment is to be made is herein
referred to as the "sinking fund payment date."

      In lieu of making all or any part of any mandatory sinking fund payment
with respect to any series of Securities in cash, the Issuer may at its option
(a) deliver to the Trustee Securities of such series theretofore purchased or
otherwise acquired (except upon redemption pursuant to the mandatory sinking
fund) by the Issuer or receive credit for Securities of such

<PAGE>   66
                                                                              59


series (not previously so credited) theretofore purchased or otherwise acquired
(except as aforesaid) by the Issuer and delivered to the Trustee for
cancellation pursuant to Section 2.10, (b) receive credit for optional sinking
fund payments (not previously so credited) made pursuant to this Section 12.5,
or (c) receive credit for Securities of such series (not previously so credited)
redeemed by the Issuer through any optional redemption provision contained in
the terms of such series. Securities so delivered or credited shall be received
or credited by the Trustee at the sinking fund redemption price specified in
such Securities.

      On or before the 60th day next preceding each sinking fund payment date
for any series, the Issuer will deliver to the Trustee an Officers' Certificate
(a) specifying the portion of the mandatory sinking fund payment to be satisfied
by payment of cash and the portion to be satisfied by credit of Securities of
such series and the basis for such credit, (b) stating that none of the
Securities of such series to be so credited has theretofore been so credited,
(c) stating that no defaults in the payment of interest or Events of Default
with respect to such series have occurred and are continuing, and (d) stating
whether or not the Issuer intends to exercise its right to make an optional
sinking fund payment with respect to such series and, if so, specifying the
amount of such optional sinking fund payment which the Issuer intends to pay on
or before the next succeeding sinking fund payment date. Any Securities of such
series to be credited and required to be delivered to the Trustee in order for
the Issuer to be entitled to credit therefor as aforesaid which have not
theretofore been delivered to the Trustee shall be delivered for cancellation
pursuant to Section 2.10 to the Trustee with such Officers' Certificate. Such
Officers' Certificate shall be irrevocable and upon its receipt by the Trustee
the Issuer shall become unconditionally obligated to make all the cash payments
or payments therein referred to, if any, on or before the next succeeding
sinking fund payment date. Failure of the Issuer, on or before any such 60th
day, to deliver such Officers' Certificate and Securities specified in this
paragraph, if any, shall not constitute a Default but shall constitute, on and
as of such date, the irrevocable election of the Issuer (i) that the mandatory
sinking fund payment for such series due on the next succeeding sinking fund
payment date shall be paid entirely in cash without the option to deliver or
credit Securities of such series in respect thereof, and (ii) that the Issuer
will make no optional sinking fund payment with respect to such series as
provided in this Section 12.5.

      If the sinking fund payment or payments (mandatory or optional or both) to
be made in cash on the next succeeding sinking fund payment date plus any unused
balance of any preceding sinking fund payments made in cash shall exceed
$50,000, such cash shall be applied on the next succeeding sinking fund payment
date to the redemption of Securities of such series at the sinking fund
redemption price together with accrued interest, if any, to the date fixed for
redemption. The Trustee shall select, in the manner provided in Section 12.2,
for redemption on such sinking fund payment date a sufficient principal amount
of Securities of such series to absorb said cash, as nearly as may be, and shall
(if requested in writing by the Issuer) inform the Issuer of the serial numbers
of the Securities of such series (or portions thereof) so selected. The Issuer,
or the Trustee, in the name and at the expense of the Issuer (if the Issuer
shall so request the Trustee in writing) shall cause notice of redemption of the
Securities of such series to be given in substantially the manner provided in
Section 12.2 (and with the effect provided in Section 12.3) for the redemption
of Securities of such series in part at the option of the Issuer. The amount of
any sinking fund payments not so applied or

<PAGE>   67
                                                                              60


allocated to the redemption of Securities of such series shall be added to the
next cash sinking fund payment for such series and, together with such payment,
shall be applied in accordance with the provisions of this Section 12.5. Any and
all sinking fund moneys held on the stated maturity date of the Securities of
any particular series (or earlier, if such maturity is accelerated), which are
not held for the payment or redemption of particular Securities of such series
shall be applied, together with other moneys, if necessary, sufficient for the
purpose, to the payment of the principal of, and interest, if any, on, the
Securities of such series at maturity.

      On or before each sinking fund payment date, the Issuer shall pay to the
Trustee in cash or shall otherwise provide for the payment of all interest, if
any, accrued to the date fixed for redemption on Securities to be redeemed on
such sinking fund payment date.

      The Trustee shall not redeem or cause to be redeemed any Securities of a
series with sinking fund moneys or give any notice of redemption of Securities
for such series by operation of the sinking fund during the continuance of a
Default in payment of interest on such Securities or of any Event of Default
with respect to such series except that, where the giving of notice of
redemption of any Securities shall theretofore have been made, the Trustee shall
redeem or cause to be redeemed such Securities, provided that it shall have
received from the Issuer a sum sufficient for such redemption. Except as
aforesaid, any moneys in the sinking fund for such series at the time when any
such Default or Event of Default known to a Responsible Officer of the Trustee
shall occur, and any moneys thereafter paid into the sinking fund, shall, during
the continuance of such Default or Event of Default, be deemed to have been
collected under Article Five and held for the payment of all such Securities. In
case such Event of Default shall have been waived as provided in Article Five or
the Default cured on or before the 60th day preceding the sinking fund payment
date in any year, such moneys shall thereafter be applied on the next succeeding
sinking fund payment date in accordance with this Section to the redemption of
such Securities.

<PAGE>   68
                                                                              61


      IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be
duly executed as of June 1, 1998.

                                             YORK INTERNATIONAL CORPORATION 

                                                                            
                                             By: /s/ James P. Corcoran       
                                                 ----------------------------
                                             Title: Treasurer               
                                                                            
Attest:                        

                                                                            
By: /s/ Jaime Mercado           
    ----------------------------
        Jaime Mercado         
                                                                            
                                             STATE STREET BANK AND TRUST    
                                             COMPANY, as Trustee            

                                                                            
                                             By: /s/ Brian Curtis            
                                                 ----------------------------
                                             Title: Assistant Vice President
                                                                            
                                             

<PAGE>   1
                                                                      Exhibit 12


                         YORK INTERNATIONAL CORPORATION

         STATEMENT RE: COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
                      (Amounts in thousands, except ratios)


<TABLE>
<CAPTION>
                                                                                    Three Months
                                                                                       Ended
                                                                                      March 31,
                                                                                     (unaudited)
                                                                                  -----------------
                         1993       1994         1995        1996       1997       1997       1998
                        ------     ------       ------      ------     ------     ------     ------
<S>                    <C>         <C>         <C>         <C>         <C>        <C>        <C>   
Earnings (loss)
   before taxes        $127,182    144,447     (70,782)    204,463     78,468     22,146     22,218

Interest expense         23,495     29,188      41,412      34,544     40,876      9,434     11,071

Interest component
   of rental expense      6,845      4,537       5,055       5,590      5,036      1,398      1,259
                       --------   --------    --------    --------   --------   --------   --------

                       $157,522    178,172     (24,315)    244,597    124,380     32,978     34,548
                       ========   ========    ========    ========   ========   ========   ========



Interest expense         23,495     29,188      41,412      34,544     40,876      9,434     11,071

Interest component
   of rental expense      6,845      4,537       5,055       5,590      5,036      1,398      1,259
                       --------   --------    --------    --------   --------   --------   --------

                       $ 30,340     33,725      46,467      40,134     45,912     10,832     12,330



Fixed charge
coverage ratio             5.2x       5.3x      --x(1)        6.1x       2.7x       3.0x       2.8x
</TABLE>


(1) Fixed charges for 1995 exceeded earnings before taxes, net of such fixed
charges, by $71 million, as a result of a charge for impairment loss on
long-lived assets of $244 million.

<PAGE>   1
                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549


                                    FORM T-1


                       STATEMENT OF ELIGIBILITY UNDER THE
                  TRUST INDENTURE ACT OF l939 OF A CORPORATION
                          DESIGNATED TO ACT AS TRUSTEE

                    / / CHECK IF AN APPLICATION TO DETERMINE
             ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(B)(2)


                       STATE STREET BANK AND TRUST COMPANY

               (Exact name of trustee as specified in its charter)


     Massachusetts                                          04-1867445

(State of incorporation if                               (I.R.S. Employer
   not a national bank                                  Identification No.)


                225 Franklin Street, Boston, Massachusetts 02110
               (Address of principal executive offices) (Zip Code)

          John R. Towers, Executive Vice President and General Counsel,
                225 Franklin Street, Boston, Massachusetts 02110
                                 (617) 654-3253
            (Name, address and telephone number of agent for service)

                         YORK INTERNATIONAL CORPORATION
               (Exact name of obligor as specified in its charter)


          Delaware                                         13-3473472

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


     632 South Richland Avenue, York, Pennsylvania           17403
     (Address of principal executive offices)              (Zip Code)

                              Senior Notes Due 2008
                      (Title of the indenture securities)
<PAGE>   2
Item l.           General Information.

         Furnish the following information as to the trustee:

         (a)      Name and address of each examining or supervising authority to
                  which it is subject:

                           Department of Banking and Insurance of
                           The Commonwealth of Massachusetts
                           100 Cambridge Street
                           Boston, Massachusetts

                           Board of Governors of the Federal Reserve System
                           Washington, D.C.

                           Federal Deposit Insurance Corporation
                           Washington, D.C.

         (b)      Whether it is authorized to exercise corporate trust powers:

                           The trustee is so authorized.

Item 2.           Affiliations with obligor. If the obligor is an affiliate
of the trustee, describe each such affiliation.

                  None with respect to the trustee or its parent, State Street
Corporation.

Item l6.          List of exhibits.  List below all exhibits filed as a part of
this statement of eligibility and qualification.

                  l.       A copy of the Articles of Association of the trustee
                           as now in effect.

                           A copy of the Articles of Association of the trustee,
                           as now in effect, is on file with the Securities and
                           Exchange Commission as Exhibit 1 to Amendment No. 1
                           to the Statement of Eligibility and Qualification of
                           Trustee (Form T-1) filed with Registration Statement
                           of Morse Shoe, Inc. (File No. 22-17940) and is
                           incorporated herein by reference thereto.

                  2.       A copy of the Certificate of Authority of the trustee
                           to do Business.

                           A copy of a Statement from the Commissioner of Banks
                           of Massachusetts that no certificate of authority for
                           the trustee to commence business was necessary or
                           issued is on file with the Securities

                                      - 2 -
<PAGE>   3
                           and Exchange Commission as Exhibit 2 to Amendment No.
                           1 to the Statement of Eligibility and Qualification
                           of Trustee (Form T-1) filed with Registration
                           Statement of Morse Shoe, Inc. (File No. 22-17940) and
                           is incorporated herein by reference thereto.

                  3.       A copy of the Certification of Fiduciary Powers of
                           the Trustee.

                           A copy of the authorization of the trustee to
                           exercise corporate trust powers is on file with the
                           Securities and Exchange Commission as Exhibit 3 to
                           Amendment No. 1 to the Statement of Eligibility and
                           Qualification of Trustee (Form T-1) filed with
                           Registration Statement of Morse Shoe, Inc. (File No.
                           22-17940) and is incorporated herein by reference
                           thereto.

                  4.       A copy of the By-laws of the trustee as now in
                           effect.

                           A copy of the By-Laws of the trustee, as now in
                           effect, is on file with the Securities and Exchange
                           Commission as Exhibit 4 to the Statement of
                           Eligibility and Qualification of Trustee (Form T-1)
                           filed with Registration Statement of Eastern Edison
                           Company (File No. 33-37823) and is incorporated
                           herein by reference thereto.

                  5.       A consent of the trustee required by Section 32l(b)
                           of the Act is annexed hereto as Exhibit 5 and made a
                           part hereof.

                  6.       A copy of the latest Consolidated Reports of
                           Condition of the trustee, published pursuant to law
                           or the requirements of its supervising or examining
                           authority.

                           A copy of the latest report of condition of the
                           trustee published pursuant to law or the requirements
                           of its supervising or examining authority is annexed
                           hereto as Exhibit 6 and made a part hereof.

                                      - 3 -
<PAGE>   4
                                      NOTES


         Inasmuch as this Form T-l is filed prior to the ascertainment by the
trustee of all facts on which to base its answer to Item 2, the answer to said
Item is based upon incomplete information. Said Item may, however, be considered
correct unless amended by an amendment to this Form T-l.



                                      - 4 -
<PAGE>   5
                                    SIGNATURE


                  Pursuant to the requirements of the Trust Indenture Act of
l939, the trustee, State Street Bank and Trust Company, a Massachusetts trust
company, has duly caused this statement of eligibility and qualification to be
signed on its behalf by the undersigned, thereunto duly authorized, all in the
City of Hartford, and State of Connecticut, on the 27th day of May, 1998.

                                     STATE STREET BANK AND TRUST
                                     COMPANY,
                                     Trustee



                                     By    /s/  Sheree J. Mailhot
                                          --------------------------------
                                          Name:  Sheree J. Mailhot
                                          Title:  Vice President

                                      - 5 -
<PAGE>   6
                                    EXHIBIT 5


                             CONSENT OF THE TRUSTEE
                           REQUIRED BY SECTION 321(b)
                       OF THE TRUST INDENTURE ACT OF 1939


         The undersigned, as Trustee under an Indenture entered into between
York International Corporation and State Street Bank and Trust Company, Trustee,
does hereby consent that, pursuant to Section 321(b) of the Trust Indenture Act
of 1939, reports of examinations with respect to the undersigned by Federal,
State, Territorial or District authorities may be furnished by such authorities
to the Securities and Exchange Commission upon request therefor.

                                         STATE STREET BANK AND TRUST
                                         COMPANY,
                                         Trustee



                                         By    /s/  Sheree J. Mailhot
                                              -------------------------------
                                              Name:  Sheree J. Mailhot
                                              Title:  Vice President




Dated:  May 27, 1998
<PAGE>   7
                                    EXHIBIT 6

Consolidated Report of Condition of State Street Bank and Trust Company,
Massachusetts and foreign and domestic subsidiaries, a state banking institution
organized and operating under the banking laws of this commonwealth and a member
of the Federal Reserve System, at the close of business December 31, 1997,
published in accordance with a call made by the Federal Reserve Bank of this
District pursuant to the provisions of the Federal Reserve Act and in accordance
with a call made by the Commissioner of Banks under General Laws, Chapter 172,
Section 22(a).
<TABLE>
<CAPTION>
                                                                                     Thousands of
ASSETS                                                                                    Dollars
<S>                                                                    <C>             <C>
Cash and balances due from depository institutions:
         Noninterest-bearing balances and currency and coin ........................... 2,220,829
         Interest-bearing balances ....................................................10,076,045
Securities ............................................................................10,373,821
Federal funds sold and securities purchased
         under agreements to resell in domestic offices
         of the bank and its Edge subsidiary ...........................................5,124,310
Loans and lease financing receivables:
         Loans and leases, net of unearned income ....................  6,270,348
         Allowance for loan and lease losses .........................     82,820
         Allocated transfer risk reserve .............................          0
         Loans and leases, net of unearned income and allowances ...................... 6,187,528
Assets held in trading accounts ........................................................1,241,555
Premises and fixed assets ................................................................410,029
Other real estate owned ......................................................................100
Investments in unconsolidated subsidiaries ................................................38,831
Customers' liability to this bank on acceptances outstanding ..............................44,962
Intangible assets ........................................................................224,049
Other assets ...........................................................................1,507,650
                                                                                        ---------

Total assets ..........................................................................37,449,709
                                                                                       ==========
LIABILITIES

Deposits:
         In domestic offices ..........................................................10,115,205
                  Noninterest-bearing ................................  7,739,136
                  Interest-bearing ...................................  2,376,069
         In foreign offices and Edge subsidiary .......................................14,791,134
                  Noninterest-bearing ................................     71,889
                  Interest-bearing ................................... 14,719,245
Federal funds purchased and securities sold under
         agreements to repurchase in domestic offices of
         the bank and of its Edge subsidiary ...........................................7,603,920
Demand notes issued to the U.S. Treasury and Trading Liabilities ........................ 194,059
Trading liabilities ....................................................................1,036,905
Other borrowed money .....................................................................459,252
Subordinated notes and debentures ..............................................................0
Bank's liability on acceptances executed and outstanding ................................  44,962
Other liabilities ........................................................................972,782

Total liabilities .....................................................................35,218,219

EQUITY CAPITAL
Perpetual preferred stock and related surplus ..................................................0
Common stock ..............................................................................29,931
Surplus ..................................................................................444,620
Undivided profits and capital reserves/Net unrealized holding gains (losses) ...........1,763,076
Cumulative foreign currency translation adjustments ......................................(6,137)
                                                                                                -
Total equity capital ...................................................................2,231,490

Total liabilities and equity capital ..................................................37,449,709
</TABLE>


I, Rex S. Schuette, Senior Vice President and Comptroller of the above named
bank do hereby declare that this Report of Condition has been prepared in
conformance with the instructions issued by the Board of Governors of the
Federal Reserve System and is true to the best of my knowledge and belief.

                                                              Rex S. Schuette

We, the undersigned directors, attest to the correctness of this Report of
Condition and declare that it has been examined by us and to the best of our
knowledge and belief has been prepared in conformance with the instructions
issued by the Board of Governors of the Federal Reserve System and is true and
correct.

                                                              David A. Spina
                                                              Marshall N. Carter
                                                              Truman S. Caspern



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