Document:

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                                                                     EXHIBIT 4.1

                            MICRO GENERAL CORPORATION

                            1999 STOCK INCENTIVE PLAN

         This 1999 STOCK INCENTIVE PLAN (the "Plan") is hereby established by
Micro General Corporation, a Delaware corporation (the "Company"), and adopted
by its Board of Directors as of the 17th day of November, 1999 (the "Effective
Date").

                                   ARTICLE 1.

                              PURPOSES OF THE PLAN

         1.1 PURPOSES. The purposes of the Plan are (a) to enhance the Company's
ability to attract and retain the services of qualified employees, officers and
directors (including non-employee officers and directors), and consultants and
other service providers upon whose judgment, initiative and efforts the
successful conduct and development of the Company's business largely depends,
and (b) to provide additional incentives to such persons or entities to devote
their utmost effort and skill to the advancement and betterment of the Company,
by providing them an opportunity to participate in the ownership of the Company
and thereby have an interest in the success and increased value of the Company.

                                   ARTICLE 2.

                                   DEFINITIONS

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

         2.1 ADMINISTRATOR. "Administrator" means the Board or, if the Board
delegates responsibility for any matter to the Committee, the term Administrator
shall mean the Committee.

         2.2 AFFILIATED COMPANY. "Affiliated Company means any subsidiary of the
Company, any business venture which the Company has a significant interest, as
determined at the discretion of the Administrator.

         2.3 BOARD. "Board" means the Board of Directors of the Company.

         2.4 CHANGE IN CONTROL. "Change in Control" shall mean (i) the
acquisition, directly or indirectly, by any person or group (within the meaning
of Section 13(d)(3) of the Securities Exchange Act of 1934, as amended) of the
beneficial ownership of securities of the Company possessing more than fifty
percent (50%) of the total combined voting power of all outstanding securities
of the Company; (ii) a merger or consolidation in which the Company is not the
surviving entity, except for a transaction in which the holders of the
outstanding voting securities of the Company immediately prior to such merger or
consolidation hold, in the aggregate, securities possessing more than fifty
percent (50%) of the total combined voting power of all outstanding voting
securities of the surviving entity immediately after such merger or
consolidation; (iii) a reverse merger in which the Company is the surviving
entity but in which securities possessing more than fifty percent (50%) of the
total combined voting power of all outstanding voting securities of the Company
are transferred to or acquired by a person or persons different from the persons
holding those securities immediately prior to such merger; (iv) the sale,
transfer or other disposition (in one transaction or a series of related
transactions) of all or substantially all of the assets of the Company; or (v)
the approval by the shareholders of a plan or proposal for the liquidation or
dissolution of the Company.

         2.5 CODE. "Code" means the Internal Revenue Code of 1986, as amended
from time to time.

         2.6 COMMITTEE. "Committee" means a committee of two or more members of
the Board appointed to administer the Plan, as set forth in Section 7.1 hereof.

         2.7 COMMON STOCK. "Common Stock" means the Common Stock, $.05 par value
of the Company, subject to adjustment pursuant to Section 4.2 hereof.

         2.8 DISABILITY. "Disability" means permanent and total disability as
defined in Section 22(e)(3) of the Code. The Administrator's determination of a
Disability or the absence thereof shall be conclusive and binding on all
interested parties.

         2.9 EFFECTIVE DATE. "Effective Date" means the date on which the Plan
is adopted by the Board, as set forth on the first page hereof.

<PAGE>   2

         2.10 EXERCISE PRICE. "Exercise Price" means the purchase price per
share of Common Stock payable upon exercise of an Option.

         2.11 FAIR MARKET VALUE. "FAIR MARKET VALUE" ON ANY GIVEN DATE MEANS THE
VALUE OF ONE SHARE OF COMMON STOCK, DETERMINED AS FOLLOWS:

                  (a) If the Common Stock is then listed or admitted to trading
         on a national stock exchange or a NASDAQ market system which reports
         closing sale prices, the Fair Market Value shall be the closing sale
         price on the date of valuation on the principal stock exchange or
         NASDAQ market system on which the Common Stock is then listed or
         admitted to trading, or, if no closing sale price is quoted on such
         day, then the Fair Market Value shall be the closing sale price of the
         Common Stock on such exchange or NASDAQ market system on the next
         preceding day for which a closing sale price is reported.

                  (b) If the Common Stock is not then listed or admitted to
         trading on a national stock exchange or NASDAQ market system which
         reports closing sale prices, the Fair Market Value shall be the average
         of the closing bid and asked prices of the Common Stock in the
         over-the-counter market on the date of valuation.

                  (c) If neither (a) nor (b) is applicable as of the date of
         valuation, then the Fair Market Value shall be determined by the
         Administrator in good faith using any reasonable method of evaluation,
         which determination shall be conclusive and binding on all interested
         parties.

         2.12 NASD DEALER. "NASD Dealer" means a broker-dealer that is a member
of the National Association of Securities Dealers, Inc.

         2.13 NONQUALIFIED OPTION. "Nonqualified Option" means any Option that
is not an Incentive Option.

         2.14 NONQUALIFIED OPTION AGREEMENT. "Nonqualified Option Agreement"
means an Option Agreement with respect to a Nonqualified Option.

         2.15 OPTION. "Option" means any option to purchase Common Stock granted
pursuant to the Plan.

         2.16 OPTION AGREEMENT. "Option Agreement" means the written agreement
entered into between the Company and the Optionee with respect to an Option
granted under the Plan.

         2.17 OPTIONEE. "Optionee" means a Participant who holds an Option.

         2.18 PARTICIPANT. "Participant" means an individual or entity who holds
an Option under the Plan.

         2.19 SERVICE PROVIDER. "Service Provider" means a consultant or other
person or entity who provides services to the Company or an Affiliated Company
and who the Administrator authorizes to become a Participant in the Plan.

         2.20 STOCK PURCHASE AGREEMENT. "Stock Purchase Agreement" means the
written agreement entered into between the Company and the Offeree with respect
to a Right to Purchase offered under the Plan.

         2.21 10% SHAREHOLDER. "10% Shareholder" means a person who, as of a
relevant date, owns or is deemed to own (by reason of the attribution rules
applicable under Section 424(d) of the Code) stock possessing more than 10% of
the total combined voting power of all classes of stock of the Company or of an
Affiliated Company.

                                   ARTICLE 3.

                                   ELIGIBILITY

         3.1 NONQUALIFIED OPTIONS. Officers and other key employees of the
Company or of an Affiliated Company, members of the Board (whether or not
employed by the Company or an Affiliated Company), and Service Providers are
eligible to receive Nonqualified Options.

         3.2 LIMITATION ON SHARES. In no event shall any Participant be granted
Options in any one calendar year pursuant to which the aggregate number of
shares of Common Stock that may be acquired thereunder exceeds 500,000 shares.

<PAGE>   3

                                   ARTICLE 4.

                                   PLAN SHARES

         4.1 SHARES SUBJECT TO THE PLAN. A total of 2,000,000 shares of Common
Stock may be issued under the Plan subject to adjustment as to the number and
kind of shares pursuant to Section 4.2 hereof. For purposes of this limitation,
in the event that (a) all or any portion of any Option granted or offered under
the Plan can no longer under any circumstances be exercised, or (b) any shares
of Common Stock are reacquired by the Company pursuant to a Nonqualified Option
Agreement or Stock Purchase Agreement, the shares of Common Stock allocable to
the unexercised portion of such Option, or the shares so reacquired, shall again
be available for grant or issuance under the Plan.

         4.2 CHANGES IN CAPITAL STRUCTURE. In the event that the outstanding
shares of Common Stock are hereafter increased or decreased or changed into or
exchanged for a different number or kind of shares or other securities of the
Company by reason of a recapitalization, stock split, combination of shares,
reclassification, stock dividend, or other change in the capital structure of
the Company, then appropriate adjustments shall be made by the Administrator to
the aggregate number and kind of shares subject to this Plan, and the number and
kind of shares and the price per share subject to outstanding Option Agreements
and Stock Purchase Agreements in order to preserve, as nearly as practical, but
not to increase, the benefits to Participants.

                                   ARTICLE 5.

                                     OPTIONS

         5.1 OPTION AGREEMENT. Each Option granted pursuant to this Plan shall
be evidenced by an Option Agreement which shall specify the number of shares
subject thereto, the Exercise Price per share, and that such Option is a
Nonqualified Option. As soon as is practical following the grant of an Option,
an Option Agreement shall be duly executed and delivered by or on behalf of the
Company to the Optionee to whom such Option was granted. Each Option Agreement
shall be in such form and contain such additional terms and conditions, not
inconsistent with the provisions of this Plan, as the Administrator shall, from
time to time, deem desirable, including, without limitation, the imposition of
any rights of first refusal and resale obligations upon any shares of Common
Stock acquired pursuant to an Option Agreement. Each Option Agreement may be
different from each other Option Agreement.

         5.2 EXERCISE PRICE. The Exercise Price per share of Common Stock
covered by each Option shall be determined by the Administrator, however, the
Option shall not be less than 100% of Fair Market Value on the date the Option
is granted.

         5.3 PAYMENT OF EXERCISE PRICE. Payment of the Exercise Price shall be
made upon exercise of an Option and may be made, in the discretion of the
Administrator, subject to any legal restrictions, by: (a) cash; (b) check; (c)
the surrender of shares of Common Stock owned by the Optionee that have been
held by the Optionee for at least six (6) months, which surrendered shares shall
be valued at Fair Market Value as of the date of such exercise; (d) the
Optionee's promissory note in a form and on terms acceptable to the
Administrator; (e) the cancellation of indebtedness of the Company to the
Optionee; (f) the waiver of compensation due or accrued to the Optionee for
services rendered; (g) provided that a public market for the Common Stock
exists, a "same day sale" commitment from the Optionee and an NASD Dealer
whereby the Optionee irrevocably elects to exercise the Option and to sell a
portion of the shares so purchased to pay for the Exercise Price and whereby the
NASD Dealer irrevocably commits upon receipt of such shares to forward the
Exercise Price directly to the Company; (h) provided that a public market for
the Common Stock exists, a "margin" commitment from the Optionee and an NASD
Dealer whereby the Optionee irrevocably elects to exercise the Option and to
pledge the shares so purchased to the NASD Dealer in a margin account as
security for a loan from the NASD Dealer in the amount of the Exercise Price,
and whereby the NASD Dealer irrevocably commits upon receipt of such shares to
forward the Exercise Price directly to the Company; or (I) any combination of
the foregoing methods of payment or any other consideration or method of payment
as shall be permitted by applicable corporate law.

         5.4 TERM AND TERMINATION OF OPTIONS. The term and provisions for
termination of each Option shall be as fixed by the Administrator, but no Option
may be exercisable more than ten (10) years after the date it is granted.

         5.5 VESTING AND EXERCISE OF OPTIONS. Each Option shall vest and become
exercisable in one or more installments at such time or times and subject to
such conditions, including without limitation the achievement of specified
performance goals or objectives, as shall be determined by the Administrator.

<PAGE>   4

         5.6 NONTRANSFERABILITY OF OPTIONS. Except as otherwise provided by the
Administrator, no Option shall be assignable or transferable except by will or
the laws of descent and distribution, and during the life of the Optionee shall
be exercisable only by such Optionee.

         5.7 RIGHTS AS SHAREHOLDER. An Optionee or permitted transferee of an
Option shall have no rights or privileges as a shareholder with respect to any
shares covered by an Option until such Option has been duly exercised and
certificates representing shares purchased upon such exercise have been issued
to such person.

                                   ARTICLE 6.

                           ADMINISTRATION OF THE PLAN

         6.1 ADMINISTRATOR. Authority to control and manage the operation and
administration of the Plan shall be vested in the Board, which may delegate such
responsibilities in whole or in part to a committee consisting of two (2) or
more members of the Board (the "Committee"). Members of the Committee may be
appointed from time to time by, and shall serve at the pleasure of, the Board.
As used herein, the term "Administrator" means the Board or, with respect to any
matter as to which responsibility has been delegated to the Committee, the term
Administrator shall mean the Committee.

         6.2 POWERS OF THE ADMINISTRATOR. In addition to any other powers or
authority conferred upon the Administrator elsewhere in the Plan or by law, the
Administrator shall have full power and authority: (a) to determine the persons
to whom, and the time or times at which, Nonqualified Options shall be granted,
the number of shares to be represented by each Option and the consideration to
be received by the Company upon the exercise thereof; (b) to interpret the Plan;
(c) to create, amend or rescind rules and regulations relating to the Plan; (d)
to determine the terms, conditions and restrictions contained in, and the form
of, Option Agreements and Stock Purchase Agreements; (e) to determine the
identity or capacity of any persons who may be entitled to exercise a
Participant's rights under any Option under the Plan; (f) to correct any defect
or supply any omission or reconcile any inconsistency in the Plan or in any
Option Agreement or Stock Purchase Agreement; (g) to accelerate the vesting of
any Option; (h) to extend the exercise date of any Option; (i) to provide for
rights of first refusal and/or repurchase rights; (j) to amend outstanding
Option Agreements and Stock Purchase Agreements to provide for, among other
things, any change or modification which the Administrator could have provided
for upon the grant of an Option or in furtherance of the powers provided for
herein; and (k) to make all other determinations necessary or advisable for the
administration of the Plan, but only to the extent not contrary to the express
provisions of the Plan. Any action, decision, interpretation or determination
made in good faith by the Administrator in the exercise of its authority
conferred upon it under the Plan shall be final and binding on the Company and
all Participants.

         6.3 LIMITATION ON LIABILITY. No employee of the Company or member of
the Board or Committee shall be subject to any liability with respect to duties
under the Plan unless the person acts fraudulently or in bad faith. To the
extent permitted by law, the Company shall indemnify each member of the Board or
Committee, and any employee of the Company with duties under the Plan, who was
or is a party, or is threatened to be made a party, to any threatened, pending
or completed proceeding, whether civil, criminal, administrative or
investigative, by reason of such person's conduct in the performance of duties
under the Plan.

                                   ARTICLE 7.

                                CHANGE IN CONTROL

         7.1 CHANGE IN CONTROL. In order to preserve a Participant's rights in
the event of a Change in Control of the Company, (I) the time period relating to
the exercise or realization of all outstanding Options shall automatically
accelerate immediately prior to the consummation of such Change in Control, and
(ii) with respect to Options, the Administrator in its discretion may, at any
time an Option is granted, or at any time thereafter, take one or more of the
following actions: (A) provide for the purchase or exchange of each Option or
Right to Purchase for an amount of cash or other property having a value equal
to the difference, or spread, between (x) the value of the cash or other
property that the Participant would have received pursuant to such Change in
Control transaction in exchange for the shares issuable upon exercise of the
Option had the Option been exercised immediately prior to such Change in Control
transaction and (y) the Exercise Price of such Option, (B) adjust the terms of
the Options in a manner determined by the Administrator to reflect the Change in
Control, (C) cause the Options to be assumed, or new rights substituted
therefor, by another entity, through the continuance of the Plan and the
assumption of outstanding Options, or the substitution for such Options of new
options of comparable value covering shares of a successor corporation, with
appropriate adjustments as to the number and kind of shares and Exercise Prices,
in which event the Plan and such Options, or the new options substituted
therefor, shall continue in the

<PAGE>   5

manner and under the terms so provided, or (D) make such other provision as the
Administrator may consider equitable. If the Administrator does not take any of
the forgoing actions, all Options shall terminate upon the consummation of the
Change in Control, unless the Common Stock remains listed or admitted to trading
on a national stock exchange or a NASDAQ market system. The Administrator shall
cause written notice of the proposed Change in Control transaction to be given
to all Participants not less than fifteen (15) days prior to the anticipated
effective date of the proposed transaction.

                                   ARTICLE 8.

                      AMENDMENT AND TERMINATION OF THE PLAN

         8.1 AMENDMENTS. The Board may from time to time alter, amend, suspend
or terminate the Plan in such respects as the Board may deem advisable. The
Board may alter or amend the Plan to comply with requirements under the Code
relating to Options which give Optionees more favorable tax treatment than that
applicable to Options granted under this Plan as of the date of its adoption.
Upon any such alteration or amendment, any outstanding Option granted hereunder
may, if the Administrator so determines and if permitted by applicable law, be
subject to the more favorable tax treatment afforded to an Optionee pursuant to
such terms and conditions.

         8.2 PLAN TERMINATION. Unless the Plan shall theretofore have been
terminated, the Plan shall terminate on the tenth (10th) anniversary of the
Effective Date and no Options may be granted under the Plan thereafter, but
Option Agreements then outstanding shall continue in effect in accordance with
their respective terms.

                                   ARTICLE 9.

                                 TAX WITHHOLDING

         9.1 WITHHOLDING. The Company shall have the power to withhold, or
require a Participant to remit to the Company, an amount sufficient to satisfy
any applicable Federal, state, and local tax withholding requirements with
respect to any Options exercised issued under the Plan. To the extent
permissible under applicable tax, securities and other laws, the Administrator
may, in its sole discretion and upon such terms and conditions as it may deem
appropriate, permit a Participant to satisfy his or her obligation to pay any
such tax, in whole or in part, up to an amount determined on the basis of the
highest marginal tax rate applicable to such Participant, by (a) directing the
Company to apply shares of Common Stock to which the Participant is entitled as
a result of the exercise of an Option or (b) delivering to the Company shares of
Common Stock owned by the Participant. The shares of Common Stock so applied or
delivered in satisfaction of the Participant's tax withholding obligation shall
be valued at their Fair Market Value as of the date of measurement of the amount
of income subject to withholding.

                                   ARTICLE 10.

                                  MISCELLANEOUS

         10.1 BENEFITS NOT ALIENABLE. Other than as provided above, benefits
under the Plan may not be assigned or alienated, whether voluntarily or
involuntarily. Any unauthorized attempt at assignment, transfer, pledge or other
disposition shall be without effect.

         10.2 NO ENLARGEMENT OF EMPLOYEE RIGHTS. This Plan is strictly a
voluntary undertaking on the part of the Company and shall not be deemed to
constitute a contract between the Company and any Participant to be
consideration for, or an inducement to, or a condition of, the employment of any
Participant. Nothing contained in the Plan shall be deemed to give the right to
any Participant to be retained as an employee of the Company or any Affiliated
Company or to limit the right of the Company or any Affiliated Company to
discharge any Participant at any time.

         10.3 APPLICATION OF FUNDS. The proceeds received by the Company from
the sale of Common Stock pursuant to Option Agreements and Stock Purchase
Agreements, except as otherwise provided herein, will be used for general
corporate purposes.<PAGE>   1
                                   EXHIBIT 4.1

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

                         UNIVERSAL HEALTH SERVICES, INC.

                                       AND

                     BANK ONE TRUST COMPANY, N.A., TRUSTEE

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

                                    INDENTURE

                          Dated as of ___________, 2000

--------------------------------------------------------------------------------
<PAGE>   2
                                                                     Exhibit 4.1

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                                Page
                                                                                                                                ----
<S>                                                                                                                             <C>
ARTICLE ONE         DEFINITIONS...............................................................................................     1
     SECTION 1.1    Certain Terms Defined.....................................................................................     1

ARTICLE TWO         SECURITIES................................................................................................     5
     SECTION 2.1    Forms Generally...........................................................................................     5
     SECTION 2.2    Form of Trustee's Certificate of Authentication...........................................................     5
     SECTION 2.3    Amount Unlimited; Issuable in Series......................................................................     5
     SECTION 2.4    Authentication and Delivery of Securities.................................................................     7
     SECTION 2.5    Execution of Securities...................................................................................     8
     SECTION 2.6    Certificate of Authentication.............................................................................     9
     SECTION 2.7    Denomination and Date of Securities; Payments of Interest.................................................     9
     SECTION 2.8    Registration, Transfer and Exchange.......................................................................     9
     SECTION 2.9    Mutilated, Defaced, Destroyed, Lost and Stolen Securities.................................................    11
     SECTION 2.10   Cancellation of Securities; Destruction Thereof...........................................................    12
     SECTION 2.11   Temporary Securities......................................................................................    12
     SECTION 2.12   CUSIP Numbers.............................................................................................    13

ARTICLE THREE       COVENANTS OF THE ISSUER...................................................................................    13
     SECTION 3.1    Payment of Principal and Interest.........................................................................    13
     SECTION 3.2    Offices for Payments, etc.................................................................................    13
     SECTION 3.3    Appointment to Fill a Vacancy in Office of Trustee........................................................    13
     SECTION 3.4    Paying Agents.............................................................................................    14
     SECTION 3.5    Written Statement to Trustee..............................................................................    14
     SECTION 3.6    Limitation on Liens.......................................................................................    14
     SECTION 3.7    Limitation on Sale and Leaseback..........................................................................    15

ARTICLE FOUR        SECURITYHOLDERS' LISTS AND REPORTS BY THE ISSUER AND THE TRUSTEE..........................................    16
     SECTION 4.1    Issuer to Furnish Trustee Information as to Names and Addresses of Securityholders........................    16
     SECTION 4.2    Preservation and Disclosure of Securityholders' Lists.....................................................    16
     SECTION 4.3    Reports by the Issuer.....................................................................................    17
     SECTION 4.4    Reports by the Trustee....................................................................................    17

ARTICLE FIVE        REMEDIES OF THE TRUSTEE AND SECURITYHOLDERS ON EVENT OF DEFAULT...........................................    17
     SECTION 5.1    Event of Default Defined; Acceleration of Maturity; Waiver of Default.....................................    17
     SECTION 5.2    Collection of Indebtedness by Trustee; Trustee May Prove Debt.............................................    19
     SECTION 5.3    Application of Proceeds...................................................................................    21
     SECTION 5.4    Suits for Enforcement.....................................................................................    22
     SECTION 5.5    Restoration of Rights on Abandonment of Proceedings.......................................................    22
     SECTION 5.6    Limitations on Suits by Securityholders...................................................................    22
</TABLE>

                                      -i-
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<TABLE>
<S>                                                                                                                              <C>
     SECTION 5.7    Unconditional Right of Securityholders to Institute Certain Suits.........................................    22
     SECTION 5.8    Powers and Remedies Cumulative; Delay or Omission Not Waiver of Default...................................    23
     SECTION 5.9    Control by Securityholders................................................................................    23
     SECTION 5.10   Waiver of Past Defaults...................................................................................    23
     SECTION 5.11   Trustee to Give Notice of Default, But May Withhold in Certain Circumstances..............................    24
     SECTION 5.12   Right of Court to Require Filing of Undertaking to Pay Costs..............................................    24

ARTICLE SIX         CONCERNING THE TRUSTEE....................................................................................    24
     SECTION 6.1    Duties and Responsibilities of the Trustee; During Default; Prior to Default..............................    24
     SECTION 6.2    Certain Rights of the Trustee.............................................................................    25
     SECTION 6.3    Trustee Not Responsible for Recitals, Disposition of Securities or Application of Proceeds Thereof........    26
     SECTION 6.4    Trustee and Agents May Hold Securities; Collections, etc..................................................    26
     SECTION 6.5    Moneys Held by Trustee....................................................................................    26
     SECTION 6.6    Compensation and Indemnification of Trustee and Its Prior Claim...........................................    27
     SECTION 6.7    Right of Trustee to Rely on Officers' Certificate, etc....................................................    27
     SECTION 6.8    Conflicting Interests.....................................................................................    27
     SECTION 6.9    Persons Eligible for Appointment as Trustee...............................................................    27
     SECTION 6.10   Resignation and Removal; Appointment of Successor Trustee.................................................    27
     SECTION 6.11   Acceptance of Appointment by Successor Trustee............................................................    29
     SECTION 6.12   Merger, Conversion, Consolidation or Succession to Business of Trustee....................................    29
     SECTION 6.13   Preferential Collection of Claims Against the Issuer......................................................    30

ARTICLE SEVEN       CONCERNING THE SECURITYHOLDERS............................................................................    30
     SECTION 7.1    Evidence of Action Taken by Securityholders...............................................................    30
     SECTION 7.2    Proof of Execution of Instruments and of Holding of Securities............................................    31
     SECTION 7.3    Holders to be Treated as Owners...........................................................................    31
     SECTION 7.4    Securities Owned by Issuer Deemed Not Outstanding.........................................................    31
     SECTION 7.5    Right of Revocation of Action Taken.......................................................................    31

ARTICLE EIGHT       SUPPLEMENTAL INDENTURES...................................................................................    32
     SECTION 8.1    Supplemental Indentures Without Consent of Securityholders................................................    32
     SECTION 8.2    Supplemental Indentures With Consent of Securityholders...................................................    33
     SECTION 8.3    Effect of Supplemental Indenture..........................................................................    34
     SECTION 8.4    Documents to Be Given to Trustee..........................................................................    34
     SECTION 8.5    Notation on Securities in Respect of Supplemental Indentures..............................................    34

ARTICLE NINE        CONSOLIDATION, MERGER, SALE OR CONVEYANCE.................................................................    34
     SECTION 9.1    Issuer May Consolidate, etc., on Certain Terms............................................................    34
     SECTION 9.2    Successor Corporation Substituted.........................................................................    34
     SECTION 9.3    Opinion of Counsel to Trustee.............................................................................    35
</TABLE>

                                      -ii-
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<TABLE>
<S>                                                                                                                              <C>
ARTICLE TEN         SATISFACTION AND DISCHARGE OF INDENTURE; UNCLAIMED MONEYS.................................................    35
     SECTION 10.1   Satisfaction and Discharge of Indenture...................................................................    35
     SECTION 10.2   Application by Trustee of Funds Deposited for Payment of Securities.......................................    36
     SECTION 10.3   Repayment of Moneys Held by Paying Agent..................................................................    36
     SECTION 10.4   Return of Moneys Held by Trustee and Paying Agent Unclaimed for Three Years...............................    36

ARTICLE ELEVEN      REDEMPTION OF SECURITIES AND SINKING FUNDS................................................................    36
     SECTION 11.1   Applicability of Article..................................................................................    36
     SECTION 11.2   Notice of Redemption; Partial Redemptions.................................................................    37
     SECTION 11.3   Payment of Securities Called for Redemption...............................................................    37
     SECTION 11.4   Exclusion of Certain Securities from Eligibility for Selection for Redemption.............................    38
     SECTION 11.5   Mandatory and Optional Sinking Funds......................................................................    38

ARTICLE TWELVE      DEFEASANCE................................................................................................    40
     SECTION 12.1   Applicability of Article: Issuer's Option to Effect Defeasance............................................    40
     SECTION 12.2   Defeasance and Discharge..................................................................................    40
     SECTION 12.3   Covenant Defeasance.......................................................................................    40
     SECTION 12.4   Conditions to Defeasance..................................................................................    41

ARTICLE THIRTEEN    MISCELLANEOUS PROVISIONS..................................................................................    42
     SECTION 13.1   Incorporators, Stockholders, Officers and Directors of Issuer.............................................    42
     SECTION 13.2   Provisions of Indenture for the Sole Benefit of Parties and Securityholders...............................    42
     SECTION 13.3   Successors and Assigns of Issuer Bound by Indenture.......................................................    42
     SECTION 13.4   Notices and Demands on Issuer, Trustee and Securityholders................................................    42
     SECTION 13.5   Officers' Certificates and Opinions of Counsel; Statements to Be Contained Therein........................    43
     SECTION 13.6   Payments Due on Saturdays, Sundays and Holidays...........................................................    44
     SECTION 13.7   Conflict of Any Provision of Indenture with Trust Indenture Act...........................................    44
     SECTION 13.8   New York Law to Govern....................................................................................    44
     SECTION 13.9   Counterparts..............................................................................................    44
     SECTION 13.10  Effect of Headings........................................................................................    44
</TABLE>

                                      -iii-
<PAGE>   5
                             CROSS REFERENCE SHEET*

                                     Between

         Provisions of Trust Indenture Act of 1939, as amended, and the
Indenture dated as of ___________, 2000 between Universal Health Services, Inc.,
Issuer, and Bank One Trust Company, N.A., Trustee:

<TABLE>
<CAPTION>
                  Section of the Act                                   Section of Indenture
<S>                                                                    <C>
                  310(a)(1) and (2)..................                  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)
                  312(c).............................                  4.2(c)
                  313(a).............................                  4.4(a)
                  313(b)(1)..........................                  Inapplicable
                  313(b)(2)..........................                  4.4
                  313(c).............................                  4.4
                  313(d).............................                  4.4
                  314(a).............................                  4.3
                  314(b).............................                  Inapplicable
                  314(c)(1) and (2)..................                  13.5
                  314(c)(3)..........................                  Inapplicable
                  314(d).............................                  Inapplicable
                  314(e).............................                  13.5
                  314(f).............................                  Inapplicable
                  315(a), (c) and (d)................                  6.1
                  315(b).............................                  5.11
                  315(e).............................                  5.12
                  316(a)(1)..........................                  5.9
                  316(a)(2)..........................                  Not required
                  316(a) (last sentence).............                  7.4
                  316(b).............................                  5.7
                  316(c).............................                  7.1
                  317(a).............................                  5.2
                  317(b).............................                  3.4(a) and (b)
                  318(a).............................                  13.7
</TABLE>

-----------

*This Cross Reference Sheet in not part of the Indenture.

                                      -iv-
<PAGE>   6
         THIS INDENTURE, dated as of ___________, 2000 between UNIVERSAL HEALTH
SERVICES, INC., a Delaware corporation (the "Issuer"), and BANK ONE TRUST
COMPANY, N.A., a national banking association (the "Trustee").

                              W I T N E S S E T H:

         WHEREAS, the Issuer has duly authorized the issue from time to time of
its unsecured debentures, notes and 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 and to provide, among other things, for the authentication, delivery
and administration thereof, the Issuer has duly authorized the execution and
delivery of this Indenture; and

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

         NOW, THEREFORE:

         In consideration of the premises and the purchases of the Securities by
the holders thereof, the receipt and sufficiency of which is hereby
acknowledged, 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 Certain Terms Defined. The following terms (except as
otherwise expressly provided or unless the context otherwise clearly requires)
for all purposes of this Indenture and of any indenture supplemental hereto
shall have the respective meanings specified in this Section. All other terms
used in this Indenture that are defined in the Trust Indenture Act or the
definitions of which in the Securities Act of 1933 are referred to in the Trust
Indenture Act, including terms defined therein by reference to the Securities
Act of 1933 (except as herein otherwise expressly provided or unless the context
otherwise clearly requires), shall have the meanings assigned to such terms in
said Trust Indenture Act and in said Securities Act as in force at the date of
this Indenture. All accounting terms used herein and not expressly defined shall
have the meanings assigned to such terms in accordance with generally accepted
accounting principles, and the term "generally accepted accounting principles"
means such accounting principles as are generally accepted at the time of any
computation. 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 terms defined in this Article have
the meanings assigned to them in this Article and include the plural as well as
the singular.

         "Board of Directors" means either the Board of Directors of the Issuer
or any committee of such Board duly authorized to act hereunder.

         "Business Day" means, with respect to any Security, a day that in the
city (or in any of the cities, if more than one) in which amounts are payable,
as specified in the form of such Security, is not a day on which banking
institutions are authorized by law or regulation to close.

         "Commission" means the Securities and Exchange Commission, as from time
to time constituted, created under the Securities Exchange Act of 1934, as
amended, or if at any time after the execution and
<PAGE>   7
delivery of this Indenture such Commission is not existing and performing the
duties now assigned to it under the Trust Indenture Act, then the body
performing such duties on such date.

         "Consolidated Net Tangible Assets" means the aggregate amount of assets
after deducting therefrom (a) all current liabilities (excluding liabilities
which could be classified as long-term debt in conformity with generally
accepted accounting principles) and (b) all goodwill, trade names, trademarks,
patents, unamortized debt discount and expense and deferred charges (other than
prepaid items such as insurance, taxes, interest, commissions, rents and similar
items and tangible assets being amortized), all as set forth on the most recent
quarterly consolidated balance sheet of the Issuer and its consolidated
Subsidiaries and computed in accordance with generally accepted accounting
principles.

         "Corporate Trust Office" means the office of the Trustee at which the
corporate trust business of the Trustee shall, at any particular time, be
administered, which office is, at the date as of which this Indenture is dated,
located at One Bank One Plaza, Suite 0126, Chicago, Illinois 60670-0126,
Attention: Corporate Trust Administration.

         "Depositary" means, with respect to the Securities of any series
issuable or issued in whole or in part 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 hereof, and thereafter "Depositary" shall mean or include
each Person who is then a Depositary hereunder, and if at any time there is more
than one such Person, "Depositary" as used with respect to the Securities of any
such series shall mean the Depositary with respect to the Securities of that
series.

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

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

         "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 2.4, and bearing the legend prescribed in Section 2.4.

         "Holder," "holder of securities," "Securityholder" or other similar
terms mean the registered holder of any Security.

         "Indenture" means this instrument as originally executed and delivered
or, if amended or supplemented as herein provided, as so amended or supplemented
or both, 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, interest payable after maturity.

         "Issuer" means (except as otherwise provided in Article Six) Universal
Health Services, Inc., a Delaware corporation, and, subject to Article Nine, its
successors and assigns.

         "Officers' Certificate" means a certificate signed by the chairman of
the Board of Directors or any vice chairman of the Board of Directors or the
president or any vice president and by the treasurer or the secretary or any
assistant secretary of the Issuer and delivered to the Trustee. Each such
certificate shall include the statements provided for in Section 13.5.

                                       -2-
<PAGE>   8
         "Opinion of Counsel" means an opinion in writing signed by legal
counsel who may be an employee of or counsel to the Issuer and who shall be
satisfactory to the Trustee. Each such opinion shall include the statements
provided for in Section 13.5, if and to the extent required hereby.

         "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.

         "Outstanding" (except as otherwise provided in Section 6.8), 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, or portions thereof, for the payment or redemption of
which moneys 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;

         (c) Securities in substitution for which other Securities shall have
been authenticated and delivered, or which shall have been paid, 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); and

         (d) Except to the extent provided in Sections 12.2 and 12.3, Securities
with respect to which the Issuer has effected defeasance and/or covenant
defeasance as provided in Article Twelve.

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

         "principal" whenever used with reference to the Securities or any
Security or any portion thereof, shall be deemed to include "and premium, if
any."

         "Principal Property" shall mean any property, plant, equipment or
facility of the Issuer or any Restricted Subsidiary, except that any property,
plant, equipment or facility of the Issuer or any Restricted Subsidiary which
does not equal or exceed 3% of the Issuer's Consolidated Net Tangible Assets
shall not constitute a Principal Property of the Issuer unless the Board of
Directors or the Issuer's management deems it to be material to the Issuer and
its Restricted Subsidiaries, taken as a whole. Principal Property shall not
include accounts receivable or inventory of the Issuer or any Restricted
Subsidiary; provided, however, that individual items of property, plant,
equipment or individual facilities of the Issuer or any Restricted Subsidiary
shall not be combined in determining whether that property, plant, equipment or
facility constitutes a Principal Property of the Issuer, whether or not they are
the subject of the same transaction or series of transactions.

         "record date" has the meaning given in Section 2.7.

                                       -3-
<PAGE>   9
         "Responsible Officer" shall mean, when used with respect to the
Trustee, any officer within the corporate trust department of the Trustee,
including any vice president, assistant vice president, assistant secretary,
assistant treasurer, trust officer or any other officer of the Trustee who
customarily performs functions similar to those performed by the Persons who at
the time shall be such officers, respectively, or to whom any corporate trust
matter is referred because of such person's knowledge of and familiarity with
the particular subject and who shall have direct responsibility for the
administration of this Indenture.

         "Restricted Subsidiary" shall mean any Subsidiary (i) substantially all
the property of which is located within the continental United States of America
and (ii) which owns any Principal Property; provided, however, that the term
"Restricted Subsidiary" shall not include any Subsidiary which is principally
engaged in leasing or in financing receivables or which is principally engaged
in financing the Issuer's operations outside the continental United States of
America.

         "Security" or "Securities" (except as otherwise provided in Section
6.8) has the meaning stated in the first recital of this Indenture, or, as the
case may be, Securities that have been authenticated and delivered under this
Indenture.

         "Subsidiary" shall mean any corporation of which stock having by the
terms thereof ordinary voting power to elect at least a majority of the board of
directors of said corporation (irrespective of whether at the time stock of any
other class or classes of such corporation shall have or may have voting power
by reason of the happening of any contingency) is at the time directly or
indirectly owned by the Issuer or by the Issuer and one or more Subsidiaries or
by one or more Subsidiaries.

         "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.

         "Trust Indenture Act" (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 and in force at the date as of which this Indenture was
originally executed.

         "U.S. Government Obligations" means securities that are (x) direct
obligations of the United States of America for the payment of which its full
faith and credit is pledged or (y) obligations of a Person controlled or
supervised by and acting as an agency or instrumentality of the United States of
America the payment of which is unconditionally guaranteed as a full faith and
credit obligation by the United States of America, which, in either case, are
not callable or redeemable at the option of the issuer thereof, and shall also
include a depository receipt issued by a bank (as defined in Section 3(a)(2) of
the Securities Act of 1933, as amended) as custodian with respect to any such
U.S. Government Obligation or a specific payment of principal of or interest on
any such U.S. Government Obligation held by such custodian for the account of
the holder of such depository receipt, provided that (except as required by law)
such custodian is not authorized to make any deduction from the amount payable
to the holder of such depository receipt from any amount received by the
custodian in respect of the U.S. Government Obligation or the specific payment
of principal of or interest on the U.S. Government Obligation evidenced by such
depository receipt.

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

                                       -4-
<PAGE>   10
                                   ARTICLE TWO
                                   SECURITIES

         SECTION 2.1 Forms Generally. The Securities of each series shall be
substantially in such form (including global form) (not inconsistent with this
Indenture) as shall be established by or pursuant to a resolution of the Board
of Directors or in one or more indentures supplemental hereto, in each case with
such appropriate insertions, omissions, substitutions and other variations as
are required or permitted by this Indenture and may have imprinted or otherwise
reproduced thereon such legend or legends, 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 the Securities.

         If any Security of a series is issuable in the form of a Global
Security or Securities, each such Global Security may provide that it shall
represent the aggregate amount of Outstanding Securities from time to time
endorsed thereon and may also provide that the aggregate amount of Outstanding
Securities represented thereby may from time to time be reduced to reflect
exchanges. Any endorsement of a Global Security to reflect the amount of
Outstanding Securities represented thereby shall be made by the Trustee and in
such manner as shall be specified on such Global Security. Any instructions by
the Issuer with respect to a Global Security, after its initial issuance, shall
be in writing but need not comply with Section 13.5.

         The definitive Securities shall be printed, lithographed or 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 in
substantially the following form:

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

         Dated:        Bank One Trust Company, N.A.
                         as Trustee

                       By: ______________________________
                           Authorized Signatory

         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. There shall be
established in or pursuant to a resolution of the Board of Directors and set
forth in an Officers' Certificate, or established in one or more indentures
supplemental hereto, prior to the issuance of Securities of any series,

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

         (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

                                       -5-
<PAGE>   11
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, 5.3, 8.5 or 12.3);

         (3) if other than U.S. dollars, the currency, currencies or currency
units in which the principal of, premium, if any, and interest on the Securities
of the series is payable, and the Person who shall serve as Exchange Rate Agent
for purposes of making any related calculations of the Market Exchange Rate;

         (4) the date or dates on which the principal of the Securities of the
series is payable, or the method by which such date or dates will be determined
or extended;

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

         (6) the place or places where the principal and any interest on
Securities of the series shall be payable (if other than as provided in Section
3.2);

         (7) the price or prices at which, the period or periods within which
and the terms and conditions upon which Securities of the series may be
redeemed, in whole or in part, at the option of the Issuer, pursuant to any
sinking fund or otherwise;

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

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

         (10) if other than the principal amount thereof, the portion of the
principal amount of Securities of the series which shall be payable upon
declaration of acceleration of the maturity thereof pursuant to Section 5.1 or
provable in bankruptcy pursuant to Section 5.2;

         (11) any limitations on the applicability of Section 12.2 or 12.3 to
the Securities of the series;

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

         (13) the coin or currency in which the Securities of that series are
denominated and, if other than the coin or currency in which the Securities of
that series are denominated, the coin or currency in which payment of the
principal of and/or interest, if any, on the Securities of such series shall be
payable;

         (14) if the amount of payments of principal of and interest, if any, on
the Securities of the series may be determined with reference to an index based
on a coin or currency other than that in which the Securities of the series are
denominated, the manner in which such amounts shall be determined;

                                       -6-
<PAGE>   12
         (15) whether the Securities of such series shall be issued in whole or
in part in the form of one or more Global Securities and, in such case, the
Depositary for such Global Security or Securities and whether beneficial owners
of interests in any such Global Securities may exchange such interests for other
Securities of such series in the manner provided in Section 2.8, and the manner
and the circumstances under which and the place or places where any such
exchanges may occur if other than in the manner provided in Section 2.8, and any
other terms of the series relating to the global nature of the Securities of
such series and the exchange, registration or transfer thereof and the payment
of any principal thereof, or interest thereon; and

         (16) any Events of Default with respect to the Securities of such
Series which may be in addition to, or modification or deletion of, those
provided herein, and any covenants or obligations of the Issuer to the Holders
of such Securities in addition to, or modification or deletion of, those set
forth herein;

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

         All Securities of any one series shall be substantially identical
except as to denomination and except as may otherwise be provided in or pursuant
to such resolution of the Board of Directors or in any such indenture
supplemental hereto. Except as provided in such resolution, the Securities of
any one series need not be issued at the same time and a series may be reopened
without the consent of the Holders, for issuances of additional Securities of
such series.

         SECTION 2.4 Authentication and Delivery of Securities. At any time and
from time to time after the execution and delivery of this Indenture, the Issuer
may deliver Securities of any series executed by the Issuer to the Trustee for
authentication, and the Trustee shall thereupon authenticate and deliver such
Securities to or upon the written order of the Issuer, signed by both (a) the
chairman of its Board of Directors, or any vice chairman of its Board of
Directors, or its president or any vice president and (b) by its treasurer or
any assistant treasurer, without any further action by the Issuer. If any
Security of a series shall be represented by a Global Security, then, for
purposes of this Section and Section 2.11, the notation of the record owner's
interest therein upon original issuance of such Security shall be deemed to be
delivery in connection with the original issuance of each beneficial owner's
interest in such Global Security. In authenticating such Securities and
accepting the additional responsibilities under this Indenture in relation to
such Securities, the Trustee shall be entitled to receive, and (subject to
Section 6.1) shall be fully protected in relying upon:

         (a) a certified copy of any resolution or resolutions of the Board of
Directors authorizing the action taken pursuant to the resolution or resolutions
delivered under clause (2) below;

         (b) a copy of any resolution or resolutions of the Board of Directors
relating to such series, in each case certified by the secretary or an assistant
secretary of the Issuer;

         (c) an executed supplemental indenture, if any;

         (d) an Officers' Certificate setting forth the form and terms of the
Securities as required pursuant to Section 2.1 and 2.3, respectively and
prepared in accordance with Section 13.5; and

         (e) an Opinion of Counsel, prepared in accordance with Section 13.5,
which shall state

                                       -7-
<PAGE>   13
                  (i) if the form or forms of such Securities have been
established by or pursuant to a resolution or resolutions of the Board of
Directors or by a supplemental indenture as permitted by Section 2.1, that such
form or forms have been established in conformity with the provisions of this
Indenture;

                  (ii) if the terms of such Securities have been established by
or pursuant to a resolution or resolutions of the Board of Directors or by a
supplemental indenture as permitted by Section 2.3, that such terms have been
established in conformity with the provisions of this Indenture;

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

                  (iv) such other matters as the Trustee may reasonably request.

         If the Issuer shall establish pursuant to Section 2.3 that the
Securities of a series are to be issued in whole or in part in the form of one
or more Global Securities, then the Issuer shall execute and the Trustee shall,
in accordance with this Section and the authentication order of the Issuer with
respect to such series, authenticate and deliver one or more Global Securities
in temporary or permanent form that shall (i) represent and be denominated in an
aggregate amount equal to the aggregate principal amount of the Outstanding
Securities of such series to be represented by one or more Global Securities,
(ii) be registered in the name of the Depositary for such Global Security or
Securities or the nominee of such Depositary, (iii) be delivered by the Trustee
to such Depositary or pursuant to such Depositary's instruction; and (iv) bear a
legend substantially to the following effect or in other form satisfactory to
the Depositary: "Unless and until it is exchanged in whole or in part for
Securities in definitive form, this Security may not be transferred except as a
whole by the Depositary to a 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 nominee to a successor Depositary or a nominee of any
successor Depositary."

         Each Depositary designated pursuant to Section 2.3 for a Global
Security in registered form must, at the time of its designation and at all
times while it serves as a Depositary, be a clearing agency registered under the
Exchange Act and shall be eligible to serve as such under any other applicable
statute or regulation.

         The Trustee shall have the right to decline to authenticate and deliver
any Securities under this Section 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 affect the Trustee's rights, duties or immunities
under the Securities or this Indenture.

         SECTION 2.5 Execution of Securities. The Securities shall be signed on
behalf of the Issuer by both (a) the chairman of its Board of Directors or any
vice chairman of its Board of Directors or its president or any vice president
and (b) by its treasurer or any assistant treasurer or its secretary or any
assistant secretary, under its corporate seal which may, but need not, be
attested. Such signatures may be manual or facsimile. 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

                                       -8-
<PAGE>   14
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, shall be entitled to the benefits of this Indenture
or be valid or obligatory for any purpose. Such certificate by the Trustee 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.

         SECTION 2.7 Denomination and Date of Securities; Payments of Interest.
The Securities shall be issuable as registered securities without coupons and in
denominations as shall be specified as contemplated by Section 2.3. In the
absence of any such specification with respect to the Securities of any series,
the Securities of such series shall be issuable in denominations of $1,000 and
any multiple thereof. The Securities 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, shall bear
interest, if any, from the date and shall be payable on the dates, in each case,
which shall be specified 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 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. The term "record date" as used with respect to any interest payment date
(except a date for payment of defaulted interest) shall mean the date specified
as such in the terms of the Securities of any particular series, or, if no such
date is so specified, 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. With respect to each
series of Securities, the Issuer will cause to be kept at each office or agency
to be maintained for the purpose as provided in Section 3.2 a register or
registers in which, subject to such reasonable regulations as it may prescribe,
it will

                                       -9-
<PAGE>   15
provide for the registration and transfer thereof as in this Article provided.
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. In the
event that such registers are not maintained by the Trustee, at all reasonable
times such register or registers shall be open for inspection 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 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 in authorized denominations for a like
aggregate principal amount.

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

         Any Security or Securities of any series (other than a Global Security,
except as set forth herein) may be exchanged for a Security or Securities of the
same series in other authorized denominations, in an equal aggregate principal
amount. Securities of any series to be exchanged shall be surrendered at any
office or agency to be maintained by the Issuer for the purpose as provided in
Section 3.2, and the Issuer shall execute and the Trustee shall authenticate and
deliver in exchange therefor the Security or Securities of the same series which
the Securityholder making the exchange shall be entitled to receive, bearing
numbers not contemporaneously outstanding.

         If at any time the Depositary for the Securities of a series notifies
the Issuer that it is unwilling or unable to continue as Depositary for the
Securities of such series or if at any time the Depositary for the Securities of
such series shall no longer be eligible under Section 2.4, the Issuer shall
appoint a successor Depositary with respect to the Securities of such series. If
a successor Depositary for the Securities of such series is not appointed by the
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(15) shall no
longer be effective with respect to the Securities of such series and the Issuer
will execute, and the Trustee, upon receipt of an order of the Issuer for the
authentication and delivery of definitive Securities of such series, will
authenticate and deliver Securities of such series in definitive form in the
aggregate principal amount equal to the principal amount of the Global Security
or Securities representing such series in exchange for such Global Security or
Securities.

         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 such Global Security or Securities. In the
event of such a determination by the Issuer or if an Event of Default has
occurred and is continuing and the beneficial owners representing a majority in
principal amount of the applicable series of Securities represented by one or
more Global Securities advise the Depositary to cease acting as depositary for
such Global Security or Securities, the Issuer will execute, and the Trustee,
upon receipt of an order of the Issuer for the authentication and delivery of
definitive Securities of such series, will authenticate and deliver Securities
of such series in definitive form in an aggregate principal amount equal to the
principal amount of the Global Security or Securities representing such series
in exchange for such Global Security or Securities.

                                      -10-
<PAGE>   16
         If specified by the Issuer pursuant to Section 2.3 with respect to a
series of Securities, the Depositary for such series of Securities may surrender
a Global Security for such series of Securities in exchange in whole or in part
for the Securities of such series in definitive form on such terms as are
acceptable to Issuer and such Depositary. Thereupon, the Issuer shall execute,
and the Trustee shall authenticate and deliver, without service charge:

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

         (2) 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 delivered to Holders
thereof.

         Upon the exchange of the Global Security for Securities in definitive
form, such Global Security shall be cancelled by the Trustee. Securities issued
in exchange for a Global Security pursuant to this Section shall be registered
in such names and in such authorized denominations as the Depositary for such
Global Security, pursuant to instructions from its direct or indirect
participants or otherwise, shall instruct the Trustee. The Trustee shall deliver
such Securities to the Persons in whose names such Securities are so registered.

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

         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 exchange or
registration of transfer of Securities. No service charge shall be made for any
such transaction.

         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 date
of selection of Securities of such series to be redeemed, or (b) any Securities
selected, called or being called for redemption except, in the case of any
Security where public notice has been given that such Security is to be redeemed
in part, the portion thereof not so to be redeemed.

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

         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, bearing a number not
contemporaneously outstanding, in exchange and substitution for the mutilated or
defaced Security, or in lieu of and 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 them to indemnify and
defend and to save each of them harmless and, in every case of

                                      -11-
<PAGE>   17
destruction, loss or theft, evidence to their satisfaction of the destruction,
loss or theft of such Security and of the ownership thereof.

         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) 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 save 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 their 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 or 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; Destruction Thereof. Unless
otherwise provided with respect to any series of Securities, 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, shall be
delivered to the Trustee 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 cancel Securities held by it and deliver a certificate of
cancellation to the Issuer at the Issuer's written direction. If the Issuer
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 for cancellation.

         SECTION 2.11 Temporary Securities. Pending the preparation of a
permanent Global Security or Securities or definitive Securities for any series,
the Issuer may execute and the Trustee shall authenticate and deliver temporary
Securities for such series or one or more temporary Global Securities (printed,
lithographed, typewritten or otherwise reproduced, in each case in form
satisfactory to the Trustee). Temporary Securities of any series shall be
issuable as registered Securities without coupons, of any authorized
denomination, and substantially in the form of the definitive Securities or
permanent Global Security, as the case may be, 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. Temporary Securities may contain such reference 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

                                      -12-
<PAGE>   18
Securities. Without unreasonable delay the Issuer shall execute and shall
furnish a permanent Global Security or Securities or 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 a like aggregate principal amount of permanent global securities or
definitive Securities of the same series of authorized denominations. Until so
exchanged, the temporary Securities of any series shall be entitled to the same
benefits under this Indenture as permanent global securities or definitive
Securities of such series.

         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. The Issuer will
promptly notify the Trustee of any change in the "CUSIP" numbers.

                                  ARTICLE THREE
                             COVENANTS OF THE ISSUER

         SECTION 3.1 Payment of Principal and Interest. The Issuer covenants and
agrees for the benefit of the Holders of each series of Securities that it will
duly and punctually pay or cause to be paid the principal of, and interest on,
each of the Securities of such series at the office or agency of the Issuer
maintained for such purpose pursuant to Section 3.2 or at such other place or
places, at the respective times and in the manner provided in such Securities.
Unless otherwise specified with respect to the Securities of any series in
accordance with Section 2.3, at the option of the Issuer, each installment on
any such series may be paid (i) by mailing a check for such interest, payable to
or upon the written order of the Person entitled thereto pursuant to Section
2.7, to the address of such Person as it appears on the Security register or
(ii) by wire transfer to an account maintained by the payee and located inside
the United States.

         SECTION 3.2 Offices for Payments, etc. So long as any of the Securities
remain outstanding, the Issuer will maintain the following for each series: an
office or agency (a) where the Securities may be presented for payment, (b)
where the Securities may be presented for registration of transfer and for
exchange as in this Indenture provided and (c) where notices and demands to or
upon the Issuer in respect of the Securities or of this Indenture may be served.
The Issuer will give to the Trustee written notice of the location of any such
office or agency and of any change of location thereof. Unless otherwise
specified in accordance with Section 2.3, the Issuer hereby appoints the Trustee
as paying agent and registrar and designates the corporate trust office of Bank
One Trust Company, N.A., 14 Wall Street, 8th Floor, New York, New York, 10005,
as the office to be maintained by it for each such purpose. In case the Issuer
shall fail to so designate or maintain any such office or agency or shall fail
to give such notice of the location or any change in the location thereof,
presentations and demands may be made and notices may be served at the Corporate
Trust Office.

         SECTION 3.3  Corporate Existence. Subject to Article 9, the Company
will do or cause to be done all things necessary to preserve and keep in full
force and effect its corporate existence and the corporate, partnership or
other existence of each Subsidiary of the Company in accordance with the
respective organizational documents of each such Subsidiary and the rights
(charter and statutory) and material franchises of the Company and its
Subsidiaries; provided, however, that the Company shall not be required to
preserve any such right or franchise, or the corporate existence of any
Subsidiary, if the Board of Directors or management of the Company or such
Subsidiary shall determine that the preservation thereof is no longer
desirable in the conduct of business of the Company and its Subsidiaries,
taken as a whole.

         SECTION 3.4 Appointment to Fill a Vacancy in Office of Trustee. The
Issuer, whenever necessary to avoid or fill a vacancy in the office of Trustee,
will appoint, in the manner provided in Section 6.10, a Trustee, so that there
shall at all times be a Trustee with respect to each series of Securities
hereunder.

                                      -13-
<PAGE>   19
         SECTION 3.5 Paying Agents. Whenever the Issuer shall appoint a paying
agent other than the Trustee with respect to the Securities of any series, it
will cause such paying agent to execute and deliver to the Trustee an instrument
in which such agent shall agree with the Trustee, subject to the provisions of
this Section,

         (a) that it will hold all sums received by it as such agent for the
payment of the principal of or interest on the Securities of such series
(whether such sums have been paid to it by the Issuer or by any other obligor on
the Securities of such series) in trust for the benefit of the holders of the
Securities of such series or of the Trustee,

         (b) that it will give the Trustee notice of any default by the Issuer
(or by any other obligor on the Securities of such series) to make any payment
of the principal of or interest on the Securities of such series when the same
shall be due and payable, and

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

The Issuer will, on or prior to each due date of the principal of or interest on
the Securities of such series, deposit with the paying agent a sum sufficient to
pay such principal or interest so becoming due, and (unless such paying agent is
the Trustee) the Issuer will promptly notify the Trustee of any failure to take
such action.

         If the Issuer shall act as its own paying agent with respect to the
Securities of any series, it will, on or before each due date of the principal
of or interest on the Securities of such series, set aside, segregate and hold
in trust for the benefit of the holders of the Securities of such series a sum
sufficient to pay such principal or interest so becoming due. The Issuer will
promptly notify the Trustee of such action.

         Anything in this Section to the contrary notwithstanding, the Issuer
may at any time, for the purpose of obtaining a satisfaction and discharge with
respect to one or more or all series of Securities hereunder, or for any other
reason, pay or cause to be paid to the Trustee all sums held in trust for any
such series by the Issuer or any paying agent hereunder, as required by this
Section, such sums to be held by the Trustee upon the trusts herein contained.

         Anything in this Section to the contrary notwithstanding, the agreement
to hold sums in trust as provided in this Section is subject to the provisions
of Sections 10.3 and 10.4.

         SECTION 3.6 Written Statement to Trustee. The Issuer will deliver to
the Trustee on or before April 15 in each year, a brief certificate from its
principal executive, accounting or financial officer (which need not comply with
Section 13.5), as to his or her knowledge of the Issuer's compliance with all
conditions and covenants in this Indenture (without regard to any period of
grace or requirement of notice provided under this Indenture).

         SECTION 3.7 Limitation on Liens. So long as the Securities of any
series are outstanding, the Issuer will not, nor will it permit any Restricted
Subsidiary to, issue, assume or guarantee any debt for money borrowed
(hereinafter in this Article Three referred to as "Debt"), which is secured by a
mortgage, security interest, pledge, lien or other encumbrance (mortgages,
security interests, pledges, liens and other encumbrances being hereinafter
called "Lien" or "Liens") upon any Principal Property of the Issuer or any
Restricted Subsidiary or upon any shares of stock or indebtedness of any
Restricted Subsidiary (whether such Principal Property, shares of stock or
indebtedness is now owned or hereafter acquired) without in any such case
effectively providing concurrently with the issuance, assumption or guaranty of
any such Debt that the Securities (together with, if the Issuer shall so
determine, any other indebtedness of or guaranteed by the Issuer or such
Restricted Subsidiary ranking equally with the Securities and then existing or
thereafter

                                      -14-
<PAGE>   20
created) shall be secured equally and ratably with such Debt; provided, however,
that the foregoing restrictions shall not apply to Debt secured by

                  (i) Liens existing on the date of the Indenture;

                  (ii) Liens in favor of governmental bodies securing progress,
advance or other payments;

                  (iii) Liens existing on property, stock or indebtedness at the
time of acquisition (including acquisition through lease, merger or
consolidation);

         (iv) Liens securing the payment of all or any part of the purchase
price of the acquired property or the purchase price of construction,
installation, renovation, improvement or development thereon or thereof or to
secure any indebtedness incurred prior to, at the time of or within 360 days
after the later of the acquisition, completion of such construction,
installation, renovation, improvement or development or the commencement of full
operation of such property, provided that the amount of such indebtedness does
not exceed the expense incurred to construct, install, renovate, improve or
develop the acquired property, or within 360 days after the acquisition of such
stock or indebtedness for the purpose of financing all or any part of the
purchase price thereof;

                  (v) Liens securing indebtedness in an aggregate amount which,
at the time of incurrence and together with all outstanding Attributable Debt
(as defined below) in respect of sale and leaseback transactions permitted under
clause (y) in the "Limitation on Sale and Leaseback" covenant, does not exceed
10% of the Issuer's Consolidated Net Tangible Assets;

                  (vi) Liens securing indebtedness owed to the Issuer or any
Restricted Subsidiary; and

                  (vii) any extension, renewal or replacement (or successive
extensions, renewals or replacements) in whole or in part of any Liens referred
to in the foregoing clauses (i) to (vi), inclusive; provided, however, that
such extension, renewal or replacement of such Lien is limited to all or any
part of the same property, stock or indebtedness that secured the Lien extended,
renewed or replaced (plus improvements on such property), and that such secured
indebtedness at such time is not increased.

         The term "Attributable Debt" shall mean, at the time of determination,
the present value (discounted at the interest rate implicit in the terms of the
lease) of the obligations of a lessee for net rental payments during the
remaining term of any lease entered into in connection with a transaction
contemplated by Section 3.8 (including any period for which such lease has been
extended).

         SECTION 3.8 Limitation on Sale and Leaseback. So long as the Securities
of any series are outstanding, the Issuer will not, nor will it permit any
Restricted Subsidiary to, enter into any arrangement with any Person providing
for the leasing by the Issuer or any Restricted Subsidiary of any Principal
Property owned by the Issuer or any Restricted Subsidiary, whether such
Principal Property is now owned or hereafter acquired, which property has been
or is to be sold or transferred by the Issuer or such Restricted Subsidiary to
such Person, unless:

         (a) such Principal Property is sold within 360 days from the date of
acquisition, or completion of the construction, or commencement of full
operations, of such Principal Property, whichever is later; or

         (b) the Issuer or such Restricted Subsidiary, within 120 days after
such sale or transfer, applies or causes to be applied to the retirement of
Funded Debt (as defined below) of the Issuer or any Restricted

                                      -15-
<PAGE>   21
Subsidiary (other than Funded Debt of the Issuer which by its terms or the terms
of the instrument pursuant to which it was issued is subordinate in right of
payment to the Securities) an amount not less than the greater of (i) the net
proceeds of the sale of such Principal Property or (ii) the fair value (as
determined in any manner approved by the Board of Directors) of such Principal
Property.

         The provisions of this covenant shall not prevent the sale and
leaseback of any Principal Property (x) if the lease entered into by the Issuer
or such Restricted Subsidiary in connection therewith is for a period, including
renewals, of not more than 36 months or (y) if the Issuer or such Restricted
Subsidiary would, at the time of entering into such sale and leaseback
transaction, be entitled, without equally and ratably securing the Securities,
to create or assume a Lien on such Principal Property securing indebtedness in
an amount at least equal to the Attributable Debt in respect of such sale and
leaseback transaction pursuant to the provisions of Section 3.6(v).

         The term "Funded Debt" shall mean all indebtedness maturing one year or
more from the date of the creation thereof, all indebtedness directly or
indirectly renewable or extendible, at the option of the debtor, by its terms or
by the terms of any instrument or agreement relating thereto, to a date one year
or more from the date of the creation thereof, and all indebtedness under a
revolving credit or similar agreement obligating the lender or lenders to extend
credit over a period of one year or more, even though such indebtedness may also
constitute short-term borrowing.

                                  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 covenants and agrees that it 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 record date for
the payment of interest on such Securities, as hereinabove specified, as of such
record date and on dates to be determined pursuant to Section 2.3 for
non-interest bearing securities in each year, 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 as of a date not more
than 15 days prior to the time such information is furnished, provided that if
and so long as the Trustee shall be the Security 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 names and addresses of the holders of each series of
Securities contained in the most recent list furnished to it as provided in
Section 4.1 or maintained by the Trustee in its capacity as Security registrar
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) The rights of Holders of Securities of any series to communicate
with other Holders of Securities of such series with respect to their rights
under this Indenture or under the Securities, and the corresponding rights and
duties of the Trustee, shall be as provided by the Trust Indenture Act.

                                      -16-
<PAGE>   22
         (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 made pursuant to the Trust Indenture Act.

         SECTION 4.3 Reports by the Issuer. The Issuer shall file with the
Trustee and the Commission, and transmit to Holders, such information, documents
and other reports, and such summaries thereof, as may be required pursuant to
the Trust Indenture Act at the times and in the manner provided pursuant to the
Trust Indenture Act; provided that any such information, documents or reports
required to be filed with the Commission pursuant to Section 13 or 15(d) of the
Exchange Act shall be filed with the Trustee within 15 days after the same is so
required to be filed with the Commission.

         SECTION 4.4 Reports by the Trustee. (a) The Trustee shall transmit to
Holders and other persons such reports concerning the Trustee and its actions
under this Indenture as may be required pursuant to the Trust Indenture Act on
or before July 15 in each year that such report is required, such reports to be
dated as of the immediately preceding May 15.

         (b) 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 notify the Trustee
with respect 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 SECURITYHOLDERS
                               ON EVENT OF DEFAULT

         SECTION 5.1 Event of Default Defined; Acceleration of Maturity; Waiver
of Default. "Event of Default" with respect to Securities of any series,
wherever used herein, means each one of the following events which shall have
occurred and be continuing (whatever the reason for such Event of Default and
whether it shall be voluntary or involuntary or be effected by operation of law
or pursuant to any judgment, decree or order of any court or any order, rule or
regulation of any administrative or governmental body):

         (a) default in the payment of any installment of interest upon any of
the Securities of such series as and when the same shall become due and payable,
and continuance of such default for a period of 30 days; or

         (b) default in the payment of all or any part of the principal of any
of the Securities of such series as and when the same shall become due and
payable either at maturity, upon redemption, by declaration or otherwise; or

         (c) default in the payment of all or any part of any sinking fund
installment or other similar obligation as and when the same shall become due
and payable by the terms of the Securities of such series; or

         (d) default in the performance, or breach, of any covenant or warranty
of the Issuer in respect of the Securities of such series (other than a covenant
or warranty in respect of the Securities of such series

                                      -17-
<PAGE>   23
a default in whose performance or whose breach is elsewhere in this Section
specifically dealt with), and continuance of such default or breach for a period
of 90 days after there has been given, by registered or certified mail, to the
Issuer by the Trustee or to the Issuer and the Trustee by the Holders of at
least 25% in principal amount of the Outstanding Securities of all series
affected thereby, a written notice specifying such default or breach and
requiring it to be remedied and stating that such notice is a "Notice of
Default" hereunder or, if there is a judicial or administrative proceeding
pending at any time during the above-referenced 90-day period in which one of
the disputed issues relates to whether or not there was a default or breach, for
a period of 90 days after the final resolution of whether or not there was a
default or breach; or

         (e) acceleration of indebtedness of the Issuer or any Restricted
Subsidiary, under the terms of the instruments evidencing such indebtedness,
aggregating more than $20,000,000 at the time outstanding; or

         (f) judgments for the payment of more than $20,000,000 at the time
outstanding rendered against the Issuer or any Restricted Subsidiary and not
discharged within 60 days after such judgment becomes final and nonappealable;
or

         (g) a court having jurisdiction in the premises shall enter a decree or
order for relief in respect of the Issuer in an involuntary case under any
applicable bankruptcy, insolvency or other similar law now or hereafter in
effect, or appointing a receiver, liquidator, assignee, custodian, trustee or
sequestrator (or similar official) of the Issuer or for any substantial part of
its property or ordering the winding up or liquidation of its affairs, and such
decree or order shall remain unstayed and in effect for a period of 60
consecutive days; or

         (h) the Issuer shall commence a voluntary case under any applicable
bankruptcy, insolvency or other similar law now or hereafter in effect, or
consent to the entry of an order for relief in an involuntary case under any
such law, or consent to the appointment of or taking possession by a receiver,
liquidator, assignee, custodian, trustee or sequestrator (or similar official)
of the Issuer or for any substantial part of its property, or make any general
assignment for the benefit of creditors, or

         (i) any other Event of Default provided in the supplemental indenture
or resolution of the Board of Directors under which such series of Securities is
issued or in the form of Security for such series.

         If an Event of Default described in clauses (a), (b), (c) or (d) above
(if the Event of Default under clause (d) is with respect to less than all
series of Securities 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 hereunder (each such series voting as a separate
class) by notice in writing to the Issuer (and to the Trustee if given by
Securityholders), may declare the entire principal of all Securities of such
series and the interest accrued thereon, if any, to be due and payable
immediately, and upon any such declaration the same shall become immediately due
and payable. If an Event of Default described in clause (d) (if the Event of
Default under clause (d) is with respect to all series of Securities then
Outstanding), (e) or (f) occurs and is continuing, then and in each and every
such case, unless the principal of all the Securities shall have already become
due and payable, either the Trustee or the Holders of not less than 25% in
aggregate principal amount of all the Securities then Outstanding hereunder
(treated as one class), by notice in writing to the Issuer (and to the Trustee
if given by Securityholders), may declare the entire principal of all the
Securities then outstanding and interest accrued thereon, if any, to be

                                      -18-
<PAGE>   24
due and payable immediately, and upon any such declaration the same shall become
immediately due and payable.

         The foregoing provisions, however, are subject to the condition that
if, at any time after the principal of the Securities of any series (or of all
the Securities, as the case may be) 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 upon all the Securities of such series (or of all the Securities, as
the case may be) and the principal of any and all Securities of such series (or
of all the Securities, as the case may be) which shall have become due otherwise
than by acceleration (with interest upon such principal and, to the extent that
payment of such interest is enforceable under applicable law, on overdue
installments of interest, at the same rate as the rate of interest specified in
the Securities of such series to the date of such payment or deposit) and such
amount as shall be sufficient to cover reasonable compensation to the Trustee,
its agents, attorneys and counsel, and all other expenses and liabilities
incurred, and all advances made, by the Trustee except as a result of negligence
or bad faith, and if any and all Events of Default under the Indenture, other
than the non-payment of the principal of Securities which shall have become due
by acceleration, shall have been cured, waived or otherwise remedied as provided
herein--then and in every such case the holders of a majority in aggregate
principal amount of all the Securities of such series, each series voting as a
separate class (or of all the Securities, as the case may be, voting as a single
class) then Outstanding, by written notice to the Issuer and to the Trustee, may
waive all defaults with respect to such series (or with respect to all the
Securities, as the case may be) and rescind and annul such declaration and its
consequences, but no such waiver or rescission and annulment shall extend to or
shall affect any subsequent default or shall impair any right consequent
thereon.

         SECTION 5.2 Collection of Indebtedness by Trustee; Trustee May Prove
Debt. The Issuer covenants that (a) in case default shall be made in the payment
of any installment of interest on any of the securities of any series when such
interest shall have become due and payable, and such default shall have
continued for a period of 30 days or (b) in case default shall be made in the
payment of all or any part of the principal of any of the Securities of any
series when the same shall have become due and payable, whether upon maturity of
the Securities of such series or upon any 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 of such series the whole amount
that then shall have become due and payable on all Securities of such series for
principal or interest, as the case may be (with interest to the date of such
payment upon the overdue principal and, to the extent that payment of such
interest is enforceable under applicable law, on overdue installments of
interest at the same rate as the rate of interest specified in 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 reasonable
compensation to the Trustee and each predecessor Trustee, their respective
agents, attorneys and counsel, and any expenses and liabilities incurred, and
all advances made, by the Trustee and each predecessor Trustee except as a
result of its negligence or bad faith.

         Until such demand is made by the Trustee, the Issuer may pay the
principal of and interest on the Securities of any series to the registered
holders, whether or not the principal of and interest on the Securities of such
series be overdue.

         In case 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 action or proceedings at law or in
equity for the collection of the sums so due and unpaid, and may prosecute any
such action or proceedings to judgment or final decree, and may enforce any such
judgment or final decree against the

                                      -19-
<PAGE>   25
Issuer or other obligor upon such Securities and collect in the manner provided
by law out of the property of the Issuer or other obligor upon such Securities,
wherever situated, the moneys adjudged or decreed to be payable.

         In case there shall be pending proceedings relative to the Issuer or
any other obligor upon the Securities under Title 11 of the United States Code
or any other applicable Federal or state bankruptcy, insolvency or other similar
law, or in case a receiver, assignee or trustee in bankruptcy or reorganization,
liquidator, sequestrator or similar official shall have been appointed for or
taken possession of the Issuer or its property or such other obligor, or in case
of any other comparable judicial proceedings relative to the Issuer or other
obligor upon the Securities of any series, or to the creditors or property of
the Issuer or such other obligor, the Trustee, irrespective of whether the
principal of any Securities 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, shall be
entitled and empowered, by intervention in such proceedings or otherwise:

         (a) to file and prove a claim or claims for the whole amount of
principal and interest owing and unpaid in respect of the Securities of any
series, and to file such other papers or documents as may be necessary or
advisable in order to have the claims of the Trustee (including any claim for
reasonable compensation to the Trustee and each predecessor Trustee, and their
respective agents, attorneys and counsel, and for reimbursement of all expenses
and liabilities incurred, and all advances made, by the Trustee and each
predecessor Trustee, except as a result of negligence or bad faith) and of the
Securityholders allowed in any judicial proceedings relative to the Issuer or
other obligor upon the Securities of any series, or to the creditors or property
of the Issuer or such other obligor,

         (b) unless prohibited by applicable law and regulations, to vote on
behalf of the holders of the Securities of any series in any election of a
trustee or a standby trustee in arrangement, reorganization, liquidation or
other bankruptcy or insolvency proceedings or person performing similar
functions in comparable proceedings, and

         (c) to collect and receive any moneys or other property payable or
deliverable on any such claims, and to distribute all amounts received with
respect to the claims of the Securityholders and of the Trustee on their behalf;
and any trustee, receiver, or liquidator, custodian or other similar official is
hereby authorized by each of the Securityholders to make payments to the
Trustee, and, in the event that the Trustee shall consent to the making of
payments directly to the Securityholders, to pay to the Trustee such amounts as
shall be sufficient to cover reasonable compensation to the Trustee, each
predecessor Trustee and their respective agents, attorneys and counsel, and all
other expenses and liabilities incurred, and all advances made, by the Trustee
and each predecessor Trustee except as a result of negligence or bad faith and
all other amounts due to the Trustee or any predecessor Trustee pursuant to
Section 6.6.

         Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or vote for or accept or adopt on behalf of any
Securityholder any plan of reorganization, arrangement, adjustment or
composition affecting the Securities of any series or the rights of any Holder
thereof, or to authorize the Trustee to vote in respect of the claim of any
Securityholder in any such proceeding except, as aforesaid, to vote for the
election of a trustee in bankruptcy or similar person.

         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 on any trial or
other proceedings relative thereto, and any such action or proceedings
instituted by the Trustee shall

                                      -20-
<PAGE>   26
be brought in its own name as trustee of an express trust, and any recovery of
judgment, subject to the payment of the expenses, disbursements and compensation
of the Trustee, each predecessor Trustee and their respective agents and
attorneys, shall be for the ratable benefit of the holders of the Securities in
respect of which such action was taken.

         In any proceedings brought by the Trustee (and also any proceedings
involving the interpretation of any provision of this Indenture to which the
Trustee shall be a party) the Trustee shall be held to represent all the holders
of the Securities in respect to which such action was taken, and it shall not be
necessary to make any holders of such Securities parties to any such
proceedings.

         SECTION 5.3 Application of Proceeds. Any moneys collected by the
Trustee pursuant to this Article in respect of any series shall be applied in
the following order at the date or dates fixed by the Trustee and, in case of
the distribution of such moneys on account of principal or interest, upon
presentation of the several Securities in respect of which monies have been
collected and stamping (or otherwise noting) thereon the payment, or issuing
Securities of such series in reduced principal amounts in exchange for the
presented Securities of like series if only partially paid, or upon surrender
thereof if fully paid:

         First: To the payment of all amounts due the Trustee under Section 6.6;

         Second: To the payment of any other costs and expenses applicable to
such series in respect of which monies have been collected;

         Third: In case the principal of the Securities of such series in
respect of which moneys have been collected shall not have become and be then
due and payable, to the payment of interest on the Securities of such series in
default in the order of the maturity of the installments of such interest, with
interest (to the extent that such interest has been collected by the Trustee)
upon the overdue installments of interest at the same rate as the rate of
interest specified in such Securities, such payments to be made ratably to the
persons entitled thereto, without discrimination or preference;

         Fourth: In case the principal of the Securities of such series in
respect of which moneys have been collected shall have become and shall be then
due and payable, to the payment of the whole amount then owing and unpaid upon
all the Securities of such series for principal and interest, with interest upon
the overdue principal, and (to the extent that such interest has been collected
by the Trustee) upon overdue installments of interest at the same rate as the
rate of interest specified in the Securities of such series; and in case such
moneys shall be insufficient to pay in full the whole amount so due and unpaid
upon the Securities of such series, then to the payment of such principal and
interest, 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 of such series over any other
Security of such series, ratably to the aggregate of such principal and accrued
and unpaid interest; and

         Fifth: To the payment of the remainder, if any, to the Issuer or any
other person lawfully entitled thereto.

         SECTION 5.4 Suits for Enforcement. In case an Event of Default has
occurred, has not been waived and is continuing, 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 at law or in
equity or in bankruptcy or otherwise, whether for the specific enforcement of
any covenant or agreement contained in this Indenture or in aid of the exercise

                                      -21-
<PAGE>   27
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 5.5 Restoration of Rights on Abandonment of Proceedings. In case
the Trustee shall have proceeded to enforce any right under this Indenture and
such proceedings shall have been discontinued or abandoned for any 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 former positions and rights hereunder, and all rights,
remedies and powers of the Issuer, the Trustee and the Securityholders shall
continue as though no such proceedings had been taken.

        SECTION 5.6 Limitations on Suits by Securityholders. No holder of any
Security of any series shall have any right by virtue   or by availing of any
provision of this Indenture to institute any action or proceeding at law or in
equity or in bankruptcy or otherwise upon or under or with respect to this
Indenture, or for the appointment of a trustee, receiver, liquidator, custodian
or other 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 also the holders of
not less than 25% in aggregate principal amount of the Securities of such series
then outstanding shall have made written request upon the Trustee to institute
such action 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 failed to institute any such action or proceeding and no
direction inconsistent with such written request shall have been given to the
Trustee pursuant to Section 5.9; it being understood and intended, and being
expressly covenanted by the taker and Holder of every Security with every other
taker and Holder and the Trustee, that no one or more Holders of Securities of
any series shall have any right in any manner whatever by virtue or by availing
of any provision of this Indenture to affect, disturb or prejudice the rights of
any other such Holder of Securities, or to obtain or seek to obtain priority
over or preference to any other such Holder or to enforce any right under this
Indenture, except in the manner herein provided and for the equal, ratable and
common benefit of all Holders of Securities of the applicable series. For the
protection and enforcement of the provisions of this Section, each and every
Securityholder and the Trustee shall be entitled to such relief as can be given
either at law or in equity.

         SECTION 5.7 Unconditional Right of Securityholders to Institute Certain
Suits. Notwithstanding any other provision in this Indenture and any provision
of any Security, the right of any Holder of any Security to receive payment of
the principal of and interest 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 5.8 Powers and Remedies Cumulative; Delay or Omission Not
Waiver of Default. Except as provided in Section 5.6, no right or remedy herein
conferred upon or reserved to the Trustee or to the Securityholders is intended
to be exclusive of any other right or remedy, and every right and remedy shall,
to the extent permitted by law, be cumulative and in addition to every other
right and remedy given hereunder or now or hereafter existing at law or in
equity or otherwise. The assertion or employment of any right or remedy
hereunder, or otherwise, shall not prevent the concurrent assertion or
employment of any other appropriate right or remedy.

         No delay or omission of the Trustee or of any Securityholder to
exercise any right or power accruing upon any Event of Default occurring and
continuing as aforesaid shall impair any such right or power or shall be
construed to be a waiver of any such Event of Default or an acquiescence
therein; and, subject to Section

                                      -22-
<PAGE>   28
5.6, every power and remedy given by this Indenture 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 5.9 Control by Securityholders. The Holders of a majority in
aggregate principal amount of the Securities of each series affected (with each
series voting as a separate class) at the time 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 power conferred on
the Trustee with respect to the Securities of such series by this Indenture;
provided that such direction shall not be otherwise than in accordance with law
and the provisions of this Indenture and provided further 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, being advised by counsel, shall determine
that the action or proceeding so directed may not lawfully be taken or if the
Trustee in good faith by its board of directors, the executive committee, or a
trust committee of directors or Responsible Officers of the Trustee shall
determine that the action or proceedings so directed would involve the Trustee
in personal liability or if the Trustee in good faith shall so determine that
the actions or forebearances specified in or pursuant to such direction would be
unduly prejudicial to the interests of Holders of the Securities of all series
so affected not joining in the giving of said direction, it being understood
that (subject to Section 6.1) the Trustee shall have no duty to ascertain
whether or not such actions or forebearances are unduly prejudicial to such
Holders.

         Nothing in this Indenture shall impair the right of the Trustee in its
discretion to take any action deemed proper by the Trustee and which is not
inconsistent with such direction or directions by Securityholders.

         SECTION 5.10 Waiver of Past Defaults. Prior to the declaration of the
acceleration of the maturity of the Securities of any series as provided in
Section 5.1, the Holders of a majority in aggregate principal amount of the
Securities of such series at the time Outstanding may on behalf of the Holders
of all the Securities of such series waive any past default or Event of Default
described in clause (c) of Section 5.1 (or, in the case of an event specified in
clause (d) of Section 5.1 which relates to less than all series of Securities
then Outstanding, the Holders of a majority in aggregate principal amount of the
Securities then outstanding affected thereby (each series voting as a separate
class) may waive any such default or Event of Default, or, in the case of an
event specified in clause (d) (if the Event of Default under clause (d) relates
to all series of Securities then Outstanding), (e) or (f) of Section 5.1 the
Holders of Securities of a majority in principal amount of all the Securities
then Outstanding (voting as one class) may waive any such default or Event of
Default), and its consequences except a default in respect of a covenant or
provision hereof which cannot be modified or amended without the consent of the
Holder of each Security affected.

         Upon any such waiver, such default shall cease to exist and be deemed
to have been cured and not to have occurred, and any Event of Default arising
therefrom shall be deemed to have been cured, and not to have occurred for every
purpose of this Indenture, and 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.

         SECTION 5.11 Trustee to Give Notice of Default, But May Withhold in
Certain Circumstances. The Trustee shall transmit to the Securityholders of any
series, as the names and addresses of such Holders appear on the registry books,
notice by mail of all defaults which have occurred with respect to such series,
such notice to be transmitted within 90 days after the occurrence thereof,
unless such defaults shall have been

                                      -23-
<PAGE>   29
cured before the giving of such notice (the term "default" or "defaults" for the
purposes of this Section being hereby defined to mean any event or condition
which is, or with notice or lapse of time or both would become, an Event of
Default); provided that, except in the case of default in the payment of the
principal of, interest on, or any sinking fund installment or other similar
obligation with respect to, any of the Securities of such series, the Trustee
shall be protected in withholding such notice if and so long as the board of
directors, the executive committee, or a trust committee of directors or
trustees and/or Responsible Officers of the Trustee in good faith determines
that the withholding of such notice is in the interests of the Securityholders
of such series.

         SECTION 5.12 Right of Court to Require Filing of 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, suffered
or omitted by it as Trustee, the filing by any party litigant in such suit of an
undertaking to pay the costs of such suit, and that such court may in its
discretion assess reasonable costs, including reasonable attorneys' fees,
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 shall not apply to any suit instituted by the
Trustee, to any suit instituted by any Holder, or group of Holders, holding in
the aggregate more than 10% in principal amount of the Outstanding Securities of
all series (or, if the matter in issue does not relate to all series of
Securities, then the Holders of 10% in principal amount of the Outstanding
Securities of all series to which such issue relates), treated as a single
class, or to any suit instituted by any Securityholder for the enforcement of
the payment of the principal of or interest on any Security 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 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 willful 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

                                      -24-
<PAGE>   30
                  (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;

         (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 Section 5.9 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.

         The provisions of this Section 6.1 are in furtherance of and subject to
Sections 315 and 316 of the Trust Indenture Act.

         SECTION 6.2 Certain Rights of the Trustee. In furtherance of and
subject to the Trust Indenture Act and 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 (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 copy
thereof certified by the secretary or an assistant secretary of the Issuer;

         (c) the Trustee may consult with counsel of its selection and any
advice or Opinion of Counsel 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 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 with the request, order or
direction of any of the Securityholders pursuant to the provisions of this
Indenture, 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;

                                      -25-
<PAGE>   31
         (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 to do so 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; and

         (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.

         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 his Indenture or of 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, if operative, 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 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 (which shall not be
limited by any provision of law in regard to the compensation of a trustee of an
express trust) to be agreed to in writing by the Trustee and the Issuer, 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 (i) the reasonable compensation and the expenses
and disbursements of its counsel and of all agents and other persons not
regularly in its employ and (ii) interest at the prime rate on any disbursements
and advances made by the Trustee and not paid by the Issuer within 5 days after
receipt of an invoice for such disbursement or advance) 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 loss, liability or expense incurred without

                                      -26-
<PAGE>   32
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 of liability in the premises. The obligations of the
Issuer under this Section 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. 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. The
provisions of this Section shall survive 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.

         SECTION 6.8 Conflicting Interests. If the Trustee has or shall acquire
a conflicting interest within the meaning of the Trust Indenture Act, the
Trustee shall either eliminate such interest or resign, to the extent and in the
manner provided by, and subject to the provisions of, the Trust Indenture Act.

         SECTION 6.9 Persons Eligible for Appointment as Trustee. The Trustee
for each series of Securities hereunder shall at all times be a corporation or
banking association having a combined capital and surplus of at least
$50,000,000. If such corporation or banking association 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. In case at any time the Trustee shall cease to be
eligible in accordance with the provisions of this Section, the Trustee shall
resign immediately in the manner and with the effect specified in Section 6.10.

         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 and by mailing notice thereof by first class
mail to Holders of the applicable series of Securities at their last addresses
as they shall appear on the Security register. 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 the applicable series for at least six months may, subject to the provisions
of Section 5.12, 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.

                                      -27-
<PAGE>   33
         (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 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; or

                  (iv) the Issuer shall determine that the Trustee has failed to
perform its obligations under this Indenture in any material respect;

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
of the Issuer, 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
Section 5.12, 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. If no successor trustee shall have been appointed with respect to any
series and have accepted appointment within 30 days after a notice of removal
has been given, the removed trustee may petition a court of competent
jurisdiction for the appointment of a successor trustee.

         (c) The Holders of a majority in aggregate principal amount of the
Securities of each series at the time 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.

         (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

                                      -28-
<PAGE>   34
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 and powers.
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 mail notice thereof by first class mail to
the Holders of Securities of any series for which such successor trustee is
acting as trustee at their last addresses as they shall appear in the Security
register. If the acceptance of appointment is substantially contemporaneous with
the resignation, then the notice called for by the preceding sentence may be
combined with the notice called for by Section 6.10. If the Issuer fails to mail
such notice within ten days after acceptance of appointment by the successor
trustee, the successor trustee shall cause such notice to be mailed at the
expense of the Issuer.

         SECTION 6.12 Merger, Conversion, Consolidation or Succession to
Business of Trustee. Any corporation or banking association into which the
Trustee may be merged or converted or with which it may be consolidated, or any
corporation or banking association resulting from any merger, conversion or
consolidation to which the Trustee shall be a party, or any corporation or
banking association 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 or banking association 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.

                                      -29-
<PAGE>   35
         SECTION 6.13 Preferential Collection of Claims Against the Issuer. The
Trustee shall comply with the provisions of Section 311 of the Trust Indenture
Act.

                                  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.

         If the Issuer shall solicit from the Securityholders any request,
demand, authorization, direction, notice, consent, waiver or other act of the
Securityholders, the Issuer may, at its option, by a resolution of the Board of
Directors, fix in advance a record date for the determination of Securityholders
entitled to give such request, demand, authorization, direction, notice,
consent, waiver or other act, but the Issuer shall have no obligation to do so.
If such a record date is fixed, such request, demand, authorization, direction,
notice, consent, waiver or other act may be given before or after such record
date, but only the Securityholders of record at the close of business on such
record date shall be deemed to be Securityholders for the purposes of
determining whether Securityholders of the requisite proportion of Outstanding
Securities have authorized or agreed or consented to such request, demand,
authorization, direction, notice, consent, waiver or other act, and for that
purpose the Outstanding Securities shall be computed as of such record date;
provided that no such authorization, agreement or consent by the Securityholders
on such record date shall be deemed effective unless it shall become effective
pursuant to the provisions of this Indenture not later than six months after the
record date.

         If any Security of a series is issuable in the form of a Global
Security or Securities, the Depositary therefor may grant proxies and otherwise
authorize participants to give or take any request, demand, authorization,
direction, notice, consent, waiver or other action which the Holder of such
Security is entitled to grant or take under this Indenture.

         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 accordance with such
reasonable rules and regulations as may be prescribed by the Trustee or in such
manner as shall be satisfactory to the Trustee. The holding of Securities shall
be proved by the Security register or by a certificate of the registrar thereof.

         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 on such Security
and for all other purposes; and neither the Issuer nor the Trustee nor any agent
of the Issuer

                                      -30-
<PAGE>   36
or the Trustee shall be affected by any notice to the contrary. All such
payments so made to any such Person, or upon his order, shall be valid, and, to
the extent of the sum or sums so paid, effectual to satisfy and discharge the
liability for moneys payable upon any such Security.

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

         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 Person directly or indirectly controlling or controlled
by or under direct or indirect common control with the Issuer or 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 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 Person
directly or indirectly controlling or controlled by or under direct or indirect
common control with 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 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, revoke such action so far as concerns such
Security. 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, 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.

                                  ARTICLE EIGHT
                             SUPPLEMENTAL INDENTURES

                                      -31-
<PAGE>   37
         SECTION 8.1 Supplemental Indentures Without Consent of Securityholders.
The Issuer, when authorized by a resolution of its Board of Directors, 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 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;

         (b) to evidence the succession of another corporation to the Issuer, or
successive successions, and the assumption by the successor corporation 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 its Board of Directors and the Trustee
shall consider to be for the protection of the Holders of Securities, 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, 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 such other provisions in regard to matters or questions
arising under this Indenture or under any supplemental indenture as the Board of
Directors may deem necessary or desirable and which shall not 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, including, without limitation, any terms
relating to the issuance, exchange, registration or transfer of Securities
issued in whole or in part in the form of one or more global Securities and the
payment of any principal thereof, or interest or premium, if any, thereon; and

         (f) 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 at
the time outstanding, notwithstanding any of the provisions of Section 8.2.

                                      -32-
<PAGE>   38
         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 at the time
outstanding of all series affected by such supplemental indenture (voting as one
class), the Issuer, when authorized by a resolution of its Board of Directors,
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 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 each such
series; provided, that no such supplemental indenture shall (a) change the final
maturity of any Security, or reduce the principal amount thereof, or reduce the
rate or extend the time of payment of interest thereon, or reduce any amount
payable on redemption thereof or reduce the amount of the principal of an
Original Issue Discount Security that could be due and payable upon an
acceleration of the maturity thereof pursuant to Section 5.1 or the amount
thereof provable in bankruptcy pursuant to Section 5.2, 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 at the option of the
Securityholder 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.

         Upon the request of the Issuer, accompanied by a copy of a resolution
of the Board of Directors 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 Securityholders
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 in
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 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, the Issuer
shall mail a notice thereof by first class mail to the Holders of Securities of
each series affected thereby at their addresses as they shall appear on the
registry books of the Issuer, setting forth in general terms the substance of
such supplemental indenture. Any failure of the Issuer to mail such notice, or
any defect therein, shall not, however, in any way impair or affect the validity
of any such supplemental indenture.

         SECTION 8.3 Effect of Supplemental Indenture. Upon the execution of any
supplemental indenture pursuant to the provisions hereof, this Indenture shall
be and 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
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 to Sections 6.1 and 6.2, shall be provided an Officers'
Certificate and an Opinion of Counsel as conclusive

                                      -33-
<PAGE>   39
evidence that any supplemental indenture executed pursuant to this Article 8
complies with the applicable provisions of this Indenture and is authorized or
permitted by this Indenture.

         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 may bear a notation in form approved by the Trustee for such series as
to any matter provided for by such supplemental indenture. 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 Board of Directors, to any
modification of this Indenture contained in any such supplemental indenture may
be prepared and executed by the Issuer, authenticated by the Trustee and
delivered in exchange for the Securities of such series then outstanding.

                                  ARTICLE NINE
                    CONSOLIDATION, MERGER, SALE OR CONVEYANCE

         SECTION 9.1 Issuer May Consolidate, etc., on Certain Terms. The Issuer
covenants that it will not merge or consolidate with any other corporation or
sell or convey all or substantially all of its assets to any Person, unless (i)
either the Issuer shall be the continuing corporation, or the successor
corporation or the Person which acquires by sale or conveyance substantially all
of the assets of the Issuer (if other than the Issuer) shall be a corporation
organized under the laws of the United States of America or any State thereof
and shall expressly assume the due and punctual payment of the principal of and
interest on all the Securities, according to their tenor, and the due and
punctual performance and observance of all of the covenants and conditions of
this Indenture to be performed or observed by the Issuer, by supplemental
indenture satisfactory to the Trustee, executed and delivered to the Trustee by
such corporation, and (ii) the Issuer or such successor corporation, as the case
may be, shall not, immediately after such merger or consolidation, or such sale
or conveyance, be in default in the performance of any such covenant or
condition.

         SECTION 9.2 Successor Corporation Substituted. In case of any such
consolidation, merger, sale or conveyance, and following such an assumption by
the successor corporation, such successor corporation shall succeed to and be
substituted for the Issuer, with the same effect as if it had been named herein.
Such successor corporation may cause to be signed, and may issue either in its
own name or in the name of the Issuer prior to such succession any or all of the
Securities issuable hereunder which theretofore shall not have been signed by
the Issuer and delivered to the Trustee; and, upon the order of such successor
corporation instead of the Issuer and subject to all the terms, conditions and
limitations in this Indenture prescribed, the Trustee shall authenticate and
shall deliver any Securities which previously shall have been signed and
delivered by the officers of the Issuer to the Trustee for authentication, and
any Securities which such successor corporation thereafter shall cause to be
signed and delivered to the Trustee for that purpose. All of the Securities so
issued shall in all respects have the same legal rank and benefit under this
Indenture as the Securities theretofore or thereafter issued in accordance with
the terms of this Indenture as though all of such Securities had been issued at
the date of the execution hereof.

         In case of any such consolidation, merger, sale, lease or conveyance
such changes in phraseology and form (but not in substance) may be made in the
Securities thereafter to be issued as may be appropriate.

         In the event of any such sale or conveyance (other than a conveyance by
way of lease) the Issuer or any successor corporation which shall theretofore
have become such in the manner described in this Article

                                      -34-
<PAGE>   40
shall be discharged from all obligations and covenants under this Indenture and
the Securities and may be liquidated and dissolved.

         SECTION 9.3 Opinion of Counsel to Trustee. The Trustee, subject to the
provisions of Sections 6.1 and 6.2, shall be provided an Opinion of Counsel and
an Officer's Certificate, prepared in accordance with Section 13.5, as
conclusive evidence that any such consolidation, merger, sale, lease or
conveyance, and any such assumption, and any such liquidation or dissolution,
complies with the applicable provisions of this Indenture.

                                   ARTICLE TEN
                    SATISFACTION AND DISCHARGE OF INDENTURE;
                                UNCLAIMED MONEYS

         SECTION 10.1 Satisfaction and Discharge of Indenture. If at any time
(a) the Issuer shall have paid or caused to be paid the principal of and
interest on all the Securities of any series outstanding hereunder (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 of any series theretofore authenticated (other
than any Securities of such series which shall have been destroyed, lost or
stolen and which shall have been replaced or paid as provided in Section 2.9) or
(c) (i) all the securities of such series not theretofore delivered to the
Trustee for cancellation shall have become due and payable, or are by their
terms 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 trust funds the entire
amount in cash (other than moneys repaid by the Trustee or any paying agent to
the Issuer in accordance with Section 10.4) sufficient to pay at maturity or
upon redemption all Securities of such series (other than any Securities of such
series which shall have been destroyed, lost or stolen and which shall have been
replaced or paid as provided in Section 2.9) not theretofore delivered to the
Trustee for cancellation, including principal and interest due or to become due
to such date of maturity as the case may be, and if, in any such case, the
Issuer shall also pay or cause to be paid all other sums payable hereunder by
the Issuer with respect to Securities of such series, then this Indenture shall
cease to be of further effect with respect to Securities of such series (except
as to (i) rights of registration of transfer and exchange, and the Issuer's
right of optional redemption, (ii) substitution of mutilated, defaced,
destroyed, lost or stolen Securities, (iii) rights of holders to receive
payments of principal thereof and interest thereon and remaining rights of the
holders to receive mandatory sinking fund payments, if any, (iv) the rights,
obligations and immunities of the Trustee hereunder and (v) the rights of the
Securityholders of such series as beneficiaries hereof with respect to the
property so deposited with the Trustee payable to all or any of them), and the
Trustee, on demand of the Issuer accompanied by an Officers' Certificate and an
Opinion of Counsel and at the cost and expense of the Issuer, shall execute
proper instruments acknowledging such satisfaction of and discharging this
Indenture with respect to such series; provided, that the rights of Holders of
the Securities to receive amounts in respect of principal of and interest on the
Securities held by them shall not be delayed longer than required by
then-applicable mandatory rules or policies of any securities exchange upon
which the Securities are listed. 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 of
such series.

                                      -35-
<PAGE>   41
         SECTION 10.2 Application by Trustee of Funds Deposited for Payment of
Securities. Subject to Section 10.4, all moneys deposited with the Trustee
pursuant to Section 10.1, all money and U.S. Government Obligations deposited
with the Trustee pursuant to Section 12.4 and all money received by the Trustee
in respect of U.S. Government Obligations deposited with the Trustee pursuant to
Section 12.4 shall be held in trust and 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 moneys have been deposited with the
Trustee, of all sums due and to become due thereon for principal and interest or
to make mandatory sinking fund payments or analogous payments as contemplated by
Section 12.4; but such money 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 Three Years. Any moneys deposited with or paid to the Trustee or
any paying agent for the payment of the principal of or interest on any Security
of any series and not applied but remaining unclaimed for three years after the
date upon which such principal or interest 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 Security 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.

                                 ARTICLE ELEVEN
                   REDEMPTION OF SECURITIES AND SINKING FUNDS

         SECTION 11.1 Applicability of Article. The provisions of this Article
shall be applicable to the Securities of any series which are redeemable before
their maturity or 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 11.2 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 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 upon the
registry books. 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.

                                      -36-
<PAGE>   42
         The notice of redemption to each such Holder shall specify the
principal amount of each Security of such series held by such Holder to be
redeemed, the date fixed for redemption, the redemption price, the place or
places of payment, that payment will be made upon presentation and surrender of
such Securities, that such redemption is pursuant to the mandatory or optional
sinking fund, or both, if such be the case, that interest accrued to the date
fixed for redemption will be paid as specified in such notice and that on and
after said date interest 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 serial number of the Security and 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 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.

         At least one Business Day prior to the redemption date specified in the
notice of redemption given as provided in this Section, the Issuer will deposit
with the Trustee or with one or more paying agents (or, if the Issuer is acting
as its own paying agent, set aside, segregate and hold in trust as provided in
Section 3.4) 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 to the date fixed for
redemption. If less than all the outstanding Securities of a series are to be
redeemed, the Issuer will deliver to the Trustee at least 70 days (or shorter
period satisfactory to the Trustee) prior to the date fixed for redemption an
Officers' Certificate stating the aggregate principal amount of Securities to be
redeemed.

         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 in whole or in part. 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 serial numbers 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.
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 11.3 Payment of Securities Called for Redemption. If notice of
redemption had been given as above provided, the Securities or portions of
Securities specified in such notice shall become due and payable on the date and
at the place stated in such notice at the applicable redemption price, together
with interest 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 accrued to said date) interest on the
Securities or portions of Securities so called for redemption shall cease to
accrue and, except as provided in Sections 6.5 and 10.4, such Securities shall
cease from and after the date fixed for redemption 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 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 accrued
thereon to the date fixed for redemption; provided that any semiannual payment
of interest becoming due on the date fixed for redemption shall be payable to
the Holders of such Securities registered as such on the relevant record date
subject to the terms and provisions of Section 2.7 hereof.

                                      -37-
<PAGE>   43
         If any Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal shall, until paid or duly
provided for, bear interest from the date fixed for redemption at the rate of
interest borne by the 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, of authorized denominations, in principal amount
equal to the unredeemed portion of the Security so presented.

         SECTION 11.4 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 a written statement signed by an authorized officer of the Issuer and
delivered to the Trustee at least 40 days (or shorter period satisfactory to the
Trustee) 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) an entity specifically identified in such written
statement directly or indirectly controlling or controlled by or under direct or
indirect common control with the Issuer.

         SECTION 11.5 Mandatory and Optional Sinking Funds. The minimum amount
of any sinking fund payment provided for by the terms of Securities of any
series is herein referred to as a "mandatory sinking fund payment", and any
payment in excess of such minimum amount provided for by the terms of Securities
of any series is herein referred to as an "optional sinking fund payment." 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 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 or mandatory sinking fund
payments (not previously so credited) made pursuant to this Section, 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 sixtieth day (or shorter period satisfactory to the
Trustee) next preceding each sinking fund payment date for any series, the
Issuer will deliver to the Trustee a written statement (which need not contain
the statements required by Section 13.5) signed by an authorized officer of the
Issuer (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, (b) stating that none of the Securities of such
series 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 (which have not been waived or cured) 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 written statement (or
reasonably promptly thereafter if acceptable to the Trustee). Such written
statement shall be irrevocable and upon its receipt by

                                      -38-
<PAGE>   44
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 sixtieth day, to deliver such written statement 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.

         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 (or a lesser sum if the Issuer shall so request) with respect to the
Securities of any particular series, 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 to
the date fixed for redemption. If such amount shall be $50,000 or less and the
Issuer makes no such request then it shall be carried over until a sum in excess
of $50,000 is available. The Trustee shall select, in the manner provided in
Section 11.2, 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. Securities of any series which are (a) owned by the Issuer or an
entity known by the Trustee to be directly or indirectly controlling or
controlled by or under direct or indirect common control with the Issuer, as
shown by the Security register, and not known to the Trustee to have been
pledged or hypothecated by the Issuer or any such entity or (b) identified in an
Officers' Certificate delivered to the Trustee at least 60 days prior to the
sinking fund payment date as being beneficially owned by, and not pledged or
hypothecated by, the Issuer or an entity directly or indirectly controlling or
controlled by or under direct or indirect common control with the Issuer shall
be excluded from Securities of such series eligible for selection for
redemption. The Trustee, in the name and at the expense of the Issuer (or the
Issuer, if it 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 11.2 (and with the effect provided in Section 11.3)
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 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. 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 on, the Securities of such series at
maturity.

         At least one Business Day 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 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 mail 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
except that, where the mailing 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

                                      -39-
<PAGE>   45
the time when any such default or Event of Default 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 Section 5.10 or the default cured on or
before the sixtieth 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.

                                 ARTICLE TWELVE
                                   DEFEASANCE

         SECTION 12.1 Applicability of Article: Issuer's Option to Effect
Defeasance. Except to the extent otherwise provided pursuant to Section 2.3 in
respect of either or both of (a) defeasance of the Securities of a series under
Section 12.2 or (b) covenant defeasance of the Securities of a series under
Section 12.3, then the provisions of such Section or Sections, as the case may
be, together with the other provisions of this Article Twelve, shall be
applicable to the Securities of such series, and the Issuer may at its option by
resolution of the Board of Directors, at any time, with respect to the
Securities of such series, elect to have either Section 12.2 (if applicable) or
Section 12.3 (if applicable) be applied to the Outstanding Securities of such
series upon compliance with the conditions set forth below in this Article
Twelve.

         SECTION 12.2 Defeasance and Discharge. Upon the Issuer's exercise of
the above option applicable to this Section, the Issuer shall be deemed to have
been discharged from its obligations with respect to the Outstanding Securities
of such series on the date the conditions set forth below are satisfied
(hereinafter, "defeasance"). For this purpose, such defeasance means that the
Issuer shall be deemed to have paid and discharged the entire indebtedness
represented by the Outstanding Securities of such series and to have satisfied
all its other obligations under such Securities and this Indenture insofar as
such Securities are concerned (and the Trustee, at the expense of the Issuer,
shall execute proper instruments acknowledging the same), except for the
following which shall survive until otherwise terminated or discharged
hereunder: (A) the rights of Holders of Outstanding Securities of such series to
receive solely from the trust fund described in Section 12.4 and as more fully
set forth in such Section, payments in respect of the principal of and interest
on such Securities when such payments are due, (B) the Issuer's obligations with
respect to such Securities under Sections 2.8, 2.9, 2.11, 3.2 and 3.4, (C) the
rights, powers, trusts, duties, and immunities of the Trustee hereunder and (D)
this Article Twelve. Subject to compliance with this Article Twelve, the Issuer
may exercise its option under this Section 12.2 notwithstanding the prior
exercise of its options under Section 12.3 with respect to Securities of such
series.

         SECTION 12.3 Covenant Defeasance. Upon the Issuer's exercise of the
above option applicable to this Section, the Issuer shall be released from its
obligations under Sections 3.6 and 3.7 (and under other covenants which may be
specified in respect of such Securities pursuant to Section 2.3(16)) with
respect to the Outstanding Securities of such series on and after the date the
conditions set forth below are satisfied (hereinafter, "covenant defeasance").
For this purpose, such covenant defeasance means that, with respect to the
Outstanding Securities of such series, the Issuer may omit to comply with and
shall have no liability in respect of any term, condition or limitation set
forth in any such Section, whether directly or indirectly by reason of any
reference elsewhere herein to any such Section or by reason of any reference in
any such Section to any other provision herein or in any other document, but the
remainder of this Indenture and such Securities shall be unaffected thereby.

                                      -40-
<PAGE>   46
         SECTION 12.4 Conditions to Defeasance. The following shall be the
conditions to application of either Section 12.2 or Section 12.3 to the
Outstanding Securities of such series:

         (a) the Issuer shall irrevocably have deposited or caused to be
deposited with the Trustee (or another trustee satisfying the requirements of
Section 6.9 who shall agree to comply with the provisions of this Article Twelve
applicable to it) as trust funds in trust for the purpose of making the
following payments, specifically pledged as security for, and dedicated solely
to, the benefit of the Holders of such Securities, (i) money in an amount, or
(ii) U.S. Government Obligations which through the scheduled payment of
principal and interest in respect thereof in accordance with their terms will
provide, not later than one day before the due date of any payment referred to
in this subparagraph (a) money in an amount, 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 and discharge, and which shall be applied by the Trustee (or
other qualifying trustee) to pay and discharge, (A) the principal of and each
installment of principal of and interest on the Outstanding Securities of such
series on the date that such principal or installment of principal or interest
is due and payable and (B) any mandatory sinking fund payments or analogous
payments applicable to the Outstanding Securities of such series on the day on
which such payments are due and payable in accordance with the terms of this
Indenture and of such Securities.

         (b) No Event of Default or event with which notice or lapse of time or
both would become an Event of Default with respect to the Securities of such
series shall have occurred and be continuing on the date of such deposit or, at
any time during the period ending on the 91st day after the date of such deposit
or, if longer, ending on the day following the expiration of the longest
preference period applicable to the Issuer under any applicable bankruptcy,
insolvency or similar law in respect of such deposit (it being understood that
this condition shall not be deemed satisfied until the expiration of such
period).

         (c) Such defeasance or covenant defeasance shall not cause the Trustee
for the Securities of such series to have a conflicting interest as defined in
Section 6.8 and for purposes of the Trust Indenture Act with respect to any
securities of the Issuer.

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

         (e) Such defeasance or covenant defeasance shall not cause any
Securities of such series then listed on any registered national securities
exchange under the Exchange Act to be delisted.

         (f) In the case of an election under Section 12.2, the Issuer shall
have delivered to the Trustee an Opinion of Counsel stating that (x) the Issuer
has received from, or there has been published by, the Internal Revenue Service
a ruling, or (y) since the date of this Indenture there has been a change in the
applicable Federal income tax law, in either case to the effect that, and based
thereon such opinion shall confirm that, the Holders of the Outstanding
Securities of such series will not recognize income, gain or loss for Federal
income tax purposes as a result of such defeasance and will be subject to
Federal income tax on the same amounts, in the same manner and at the same time
as would have been the case if such defeasance had not occurred.

         (g) In the case of an election under Section 12.3, the Issuer shall
have delivered to the Trustee an Opinion of Counsel to the effect that the
Holders of the Outstanding Securities of such series will not recognize income,
gain or loss for Federal income tax purposes as a result of such covenant
defeasance and

                                      -41-
<PAGE>   47
will be subject to Federal income tax on the same amounts, in the same manner
and at the same times as would have been the case if such covenant defeasance
had not occurred.

         (h) Such defeasance or covenant defeasance shall be effected in
compliance with any additional terms, conditions or limitations which may be
imposed on the Issuer in connection therewith pursuant to Section 2.3.

         (i) The Issuer shall have delivered to the Trustee an Officers
Certificate and an Opinion of Counsel, each stating that all conditions
precedent provided for relating to either the defeasance under Section 12.2 or
the covenant defeasance under Section 12.3 (as the case may be) have been
complied with.

         (j) Such defeasance or covenant defeasance shall not result in the
trust arising from such deposit constituting an investment company within the
meaning of the Investment Company Act of 1940, as amended, unless such trust
shall be registered under such Act or exempt from registration thereunder.

                                ARTICLE THIRTEEN
                            MISCELLANEOUS PROVISIONS

         SECTION 13.1 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 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.

         SECTION 13.2 Provisions of Indenture for the Sole Benefit of Parties
and Securityholders. Nothing in this Indenture or in the Securities, expressed
or implied, shall give or be construed to give to any person, firm or
corporation, other than the parties hereto, any Paying Agent, 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 13.3 Successors and Assigns of Issuer Bound by Indenture. All
the covenants, stipulations, promises and agreements in this Indenture contained
by or in behalf of the Issuer shall bind its successors and assigns, whether so
expressed or not.

         SECTION 13.4 Notices and Demands on Issuer, Trustee and
Securityholders. Any notice or demand which 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 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 Universal Health Services, Inc., Universal Corporate Center, 367
South Gulph Road, King of Prussia, Pennsylvania 19406, Attention: Secretary. Any
notice, direction, request or demand by the Issuer or any Securityholder to or
upon the Trustee shall be deemed to have been sufficiently given or made, for
all purposes, if given or made at the Corporate Trust Office, when received by
the Trustee.

         Where this Indenture provides for notice to Holders, 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. In any case where notice to
Holders

                                      -42-
<PAGE>   48
is given by mail, neither the failure to mail such notice, nor any defect in any
notice so mailed, to any particular Holder shall affect the sufficiency of such
notice with respect to other Holders. 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 and
Securityholders 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
satisfactory to the Trustee shall be deemed to be a sufficient giving of such
notice.

         SECTION 13.5 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, 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 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 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
informed 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, information with respect to which is in the possession of
the Issuer, upon the certificate, statement or opinion of or representations by
an officer of 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.

                                      -43-
<PAGE>   49
         Any certificate or opinion of any independent firm of public
accountants filed with the Trustee shall contain a statement that such firm is
independent.

         SECTION 13.6 Payments Due on Saturdays, Sundays and Holidays. If the
date of maturity of interest on or principal of the Securities of any series or
the date fixed for redemption or repayment of any such Security shall not be a
Business Day, then payment of interest 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,
and no interest shall accrue for the period after such date.

         SECTION 13.7 Conflict of Any Provision of Indenture with Trust
Indenture Act. If any provision hereof limits, qualifies or conflicts with a
provision of the Trust Indenture Act that is required under such Act to be a
part of and govern this Indenture without such limitation, qualification or
conflict, the latter provision shall control. If any provision of this Indenture
modifies or excludes any provision of the Trust Indenture Act that may be so
modified or excluded, the latter provision shall be deemed to apply to this
Indenture as so modified or excluded, as the case may be.

         SECTION 13.8 New York Law to Govern. 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 construed in accordance with the laws of such State,
except as may otherwise be required by mandatory provisions of law.

         SECTION 13.9 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 13.10 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.

                                      -44-
<PAGE>   50
         IN WITNESS WHEREOF, the parties hereto have caused this Indenture, to
be duly executed, and their respective corporate seals to be hereunto affixed
and attested, all as of the date first above written.

                                   UNIVERSAL HEALTH SERVICES, INC.

                                   By: _______________________________
[CORPORATE SEAL]                             Name:
                                             Title:
Attest:

By: _______________________________
          Name:
          Title: Secretary

                                   BANK ONE TRUST COMPANY, N.A.
                                         as Trustee

                                   By: _______________________________
                                             Name:
                                             Title:

                                      -45-

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