USA WASTE SERVICES INC
S-3, 1997-07-30
REFUSE SYSTEMS
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<PAGE>   1
    As filed with the Securities and Exchange Commission on July 30, 1997
                                                           Registration No. 333-

================================================================================
                     SECURITIES AND EXCHANGE COMMISSION
                           WASHINGTON, D.C.  20549

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

                                  FORM S-3
                           REGISTRATION STATEMENT
                                    UNDER
                         THE SECURITIES ACT OF 1933

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

                          USA WASTE SERVICES, INC.
           (Exact name of Registrant as specified in its charter)

             DELAWARE                                            73-1309529
   (State or other jurisdiction                               (I.R.S. Employer
of incorporation or organization)                            Identification No.)



                             1001 FANNIN STREET
                                 SUITE 4000
                            HOUSTON, TEXAS  77002
                               (713) 512-6200
             (Address, including zip code, and telephone number,
      including area code, of Registrant's principal executive offices)

                             GREGORY T. SANGALIS
                VICE PRESIDENT, GENERAL COUNSEL AND SECRETARY
                             1001 FANNIN STREET
                                 SUITE 4000
                            HOUSTON, TEXAS  77002
                               (713) 512-6200

          (Name, address, including zip code, and telephone number,
                 including area code, of agent for service)

                                  Copy to:

              MARCUS A. WATTS                      THOMAS JAMES MURPHY, P.C.
LIDDELL, SAPP, ZIVLEY, HILL & LABOON, L.L.P.        MCDERMOTT, WILL & EMERY
         3400 TEXAS COMMERCE TOWER                   227 WEST MONROE STREET
           HOUSTON, TEXAS  77002                  CHICAGO, ILLINOIS  60606-5096
             (713) 226-1200                              (312) 372-2000

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

    APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:  From time
to time after this Registration Statement becomes effective.

    If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [ ]

    If any of the securities being registered on this Form are being offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or
interest reinvestment plans, please check the following box.  [x]

    If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following
box and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [ ]

    If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, please check the following box and list the
Securities Act registration statement number of the earlier effective
registration statement for the same offering. [ ]

    If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [ ]


                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
====================================================================================================================
                                                            Proposed             Proposed            Amount of 
        Title of each class of          Amount to be    maximum offering     maximum aggregate    registration  
      securities to be registered        registered     price per share      offering price            fee      
- --------------------------------------------------------------------------------------------------------------------
      <S>                               <C>             <C>                 <C>                   <C>    
      Debt Securities  . . . . . . .
      Common Stock, par value $.01           (1)              (1)               $1,500,000,000(2)       $454,546
      per share  . . . . . . . . . .
====================================================================================================================
</TABLE>
(1) Omitted pursuant to Rule 457(o).
(2) Estimated solely for the purpose of calculating the registration fee
    pursuant to Rule 457(o).

    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE SECURITIES AND EXCHANGE COMMISSION, ACTING
PURSUANT TO SAID SECTION 8(A), MAY DETERMINE.
================================================================================
<PAGE>   2
 
                   SUBJECT TO COMPLETION, DATED JULY 30, 1997
 
PROSPECTUS
                            USA WASTE SERVICES, INC.
                                DEBT SECURITIES
                                  COMMON STOCK
                             ---------------------
     USA Waste Services, Inc. ("USA Waste" or the "Company") may offer and sell
from time to time, in one or more series, its unsecured debt securities
consisting of notes, debentures or other evidences of indebtedness (the "Debt
Securities"). The Company may also offer and sell from time to time shares of
its common stock, par value $.01 per share (the "Common Stock"). The aggregate
initial offering prices of the Debt Securities and the Common Stock offered by
the Company hereby (the "Securities") will not exceed $1,500,000,000 or, if
applicable, the equivalent thereof in any other currency or currency unit. The
Securities will be offered in amounts, at prices and on terms to be determined
at the time of sale and set forth in a supplement to this Prospectus (a
"Prospectus Supplement").
 
     If the offering and sale of Securities in respect of which this Prospectus
is being delivered includes a series of Debt Securities, then the terms of such
series of Debt Securities, including, where applicable, the specific
designation, aggregate principal amount, authorized denominations, ranking as
senior or subordinated Debt Securities, maturity, interest rate or rates (or
method of determining the same) and time or times of payment of any interest,
any terms for optional or mandatory redemption, which may include redemption at
the option of holders upon the occurrence of certain events, conversion into
Common Stock, or payment of additional amounts or any sinking fund provisions,
any covenants or events of default that are in addition to or different from
those described herein, any initial public offering price, the proceeds to the
Company and any other specific terms in connection with the offering and sale of
such series of Debt Securities will be set forth in a Prospectus Supplement. As
used herein, Debt Securities shall include securities denominated in United
States dollars or, at the option of the Company if so specified in an applicable
Prospectus Supplement, in any other currency or currency unit, or in amounts
determined by reference to an index.
 
     The Securities may be sold directly by the Company to investors, through
agents designated from time to time or to or through underwriters or dealers.
See "Plan of Distribution." If any agents of the Company or any underwriters are
involved in the sale of any Securities in respect of which this Prospectus is
being delivered, the names of such agents or underwriters and any applicable
commissions or discounts will be set forth in a Prospectus Supplement. The net
proceeds to the Company from such sale also will be set forth in a Prospectus
Supplement. See "Use of Proceeds."
 
     Debt Securities may be issued in registered form ("Registered Securities")
or bearer form ("Bearer Securities") with or without interest coupons attached,
or both. In addition, all or a portion of the Debt Securities of a series may be
issuable in temporary or permanent global form. Debt Securities in bearer form
are offered only to non-United States persons and to offices located outside the
United States of certain United States financial institutions.
                             ---------------------
     The Common Stock is traded on the New York Stock Exchange under the symbol
"UW." Any Common Stock sold pursuant to a Prospectus Supplement will be listed
on such exchange, subject to official notice of issuance.
                             ---------------------
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS
  THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
   COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.
           ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                             ---------------------
     This Prospectus may not be used to consummate sales of the Securities
unless accompanied by a Prospectus Supplement.
 
              THE DATE OF THIS PROSPECTUS IS               , 1997.
<PAGE>   3
 
                             AVAILABLE INFORMATION
 
     The Company is subject to the information requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and in accordance
therewith, files reports, proxy statements, and other information with the
Securities and Exchange Commission (the "Commission"). Such reports, proxy
statements, and other information filed by the Company with the Commission can
be inspected and copied at the public reference facilities maintained by the
Commission at Room 1024, Judiciary Plaza, 450 Fifth Street, N.W., Washington,
D.C. 20549 and at the following Regional Offices of the Commission: Chicago
Regional Office, Citicorp Center, 500 West Madison Street, Suite 1400, Chicago,
Illinois 60661-2511 and New York Regional Office, Seven World Trade Center,
Suite 1300, New York, New York 10048. Copies of such material can be obtained
from the Public Reference Section of the Commission at 450 Fifth Street, N.W.,
Washington, D.C. 20549, at prescribed rates. The Commission maintains an
Internet Web site at http://www.sec.gov that contains reports, proxy and
information statements, and other information regarding registrants that file
electronically with the Commission. In addition, reports, proxy statements and
other information concerning the Company can be inspected at the New York Stock
Exchange, 20 Broad Street, New York, New York 10005, on which exchange the
Common Stock is listed.
 
     This Prospectus constitutes a part of a Registration Statement on Form S-3
(together with all amendments and exhibits thereto, the "Registration
Statement") filed by the Company with the Commission under the Securities Act of
1933, as amended (the "Securities Act"). This Prospectus omits certain of the
information contained in the Registration Statement in accordance with the rules
and regulations of the Commission. Reference is hereby made to the Registration
Statement and exhibits thereto for further information with respect to the
Company and the securities offered hereby. Any statements contained herein
concerning the provisions of any document filed as an exhibit to the
Registration Statement or otherwise filed with the Commission are not
necessarily complete, and in each instance reference is made to the copy of such
document so filed. Each such statement is qualified in its entirety by such
reference.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
     The following documents filed by the Company with the Commission under the
Exchange Act (File No. 1-12154) are incorporated by reference in this
Prospectus:
 
     (a) the Company's Annual Report on Form 10-K for the year ended December
         31, 1996 as amended by its Annual Report on Form 10-K/A (Amendment No.
         1) filed April 30, 1997;
 
     (b) the Company's Quarterly Report on Form 10-Q for the three months ended
         March 31, 1997;
 
     (c) the Company's Current Reports on Form 8-K filed January 13, 1997,
         January 24, 1997, February 6, 1997, February 7, 1997, March 27, 1997
         (as amended by its Current Reports on Form 8-K/A filed April 15, 1997,
         and July 23, 1997) and April 17, 1997;
 
     (d) the Company's Joint Proxy Statement and Prospectus, which is part of
         the Company's Registration Statement on Form S-4 (Registration No.
         333-31979) filed on July 24, 1997; and
 
     (e) the description of the Common Stock contained in the Registration
         Statement on Form 8-A dated July 1, 1993, as amended by Form 8-B dated
         July 13, 1995.
 
     All documents filed by the Company pursuant to Section 13(a), 13(c), 14 or
15(d) of the Exchange Act subsequent to the date of this Prospectus and prior to
the termination of the offering of the Securities pursuant hereto shall be
deemed to be incorporated by reference herein and to be a part hereof from the
date of filing of such document. Any statement contained herein or in a document
incorporated or deemed to be incorporated by reference herein shall be deemed to
be modified or superseded for purposes of this Prospectus to the extent that a
statement contained herein or in any other subsequently filed document which
also is or is deemed to be incorporated by reference herein modifies or
supersedes such statement. Any such statement so modified or superseded shall
not be deemed, except as so modified or superseded, to constitute a part of this
Prospectus.
 
                                        2
<PAGE>   4
 
     The Company will provide without charge to each person to whom this
Prospectus is delivered, upon written or oral request of such person, a copy of
any or all of the documents that are incorporated by reference in this
Prospectus (other than exhibits to such documents, unless such exhibits are
specifically incorporated by reference into such documents). Requests should be
directed to the Corporate Secretary, USA Waste Services, Inc., First City Tower,
1001 Fannin Street, Suite 4000, Houston, Texas 77002, telephone number (713)
512-6200.
 
                                  THE COMPANY
 
     USA Waste is the third largest integrated non-hazardous solid waste
management company in North America, as measured by 1996 revenues, and serves
municipal, commercial, industrial and residential customers in 35 states in the
United States, Canada, Puerto Rico and Mexico. USA Waste's solid waste
management services include collection, transfer and disposal operations and, to
a lesser extent, recycling and certain other waste management services. USA
Waste owns or operates 121 landfills, 83 transfer stations and 243 collection
companies and serves more than two million municipal, commercial, industrial and
residential customers. The principal executive offices of USA Waste are located
at First City Tower, 1001 Fannin Street, Suite 4000, Houston, Texas 77002 and
the telephone number is (713) 512-6200. The "Company" and "USA Waste" refer to
USA Waste Services, Inc. and its subsidiaries and predecessors, unless otherwise
indicated or the context requires otherwise.
 
     USA Waste has entered into a definitive merger agreement with United Waste
Systems, Inc. ("United"). United is the sixth largest provider of integrated,
non-hazardous solid waste management services in the United States, as measured
by 1996 revenues. United owns or operates 39 landfills, 80 collection companies
and 78 transfer stations, and serves approximately 950,000 customers in 24
states. A Joint Proxy Statement and Prospectus has been distributed to
shareholders of both USA Waste and United for their approval of the merger, and
the merger is expected to close in August 1997.
 
                                USE OF PROCEEDS
 
     Except as may otherwise be described in the Prospectus Supplement relating
to an offering of Securities, the net proceeds from the sale of the Securities
offered pursuant to this Prospectus and such Prospectus Supplement will be used
for general corporate purposes. Any specific allocation of the net proceeds of
an offering of Securities by the Company to a specific purpose will be
determined at the time of such offering and will be described in the related
Prospectus Supplement.
 
                      RATIOS OF EARNINGS TO FIXED CHARGES
 
     The following table sets forth the Company's consolidated ratios of
earnings to fixed charges for the periods as shown:
 
<TABLE>
<CAPTION>
                                                                                               THREE MONTHS
                                                YEAR ENDED DECEMBER 31,                           ENDED
                            ----------------------------------------------------------------    MARCH 31,
                              1992          1993          1994          1995          1996         1997
                            --------      --------      --------      --------      --------   ------------
<S>                         <C>           <C>           <C>           <C>           <C>        <C>
Actual....................   (0.20)x        1.68x         0.73x         2.09x         1.81x        5.11x
</TABLE>
 
     The Company's consolidated ratios of earnings to fixed charges were
computed by dividing earnings by fixed charges. For this purpose, earnings are
the sum of income (loss) from continuing operations, taxes, and fixed charges,
excluding capitalized interest. Fixed charges are interest, whether expensed or
capitalized, amortization of debt expense and discount on premium relating to
indebtedness, whether expensed or capitalized, and such portion of rental
expense that can be demonstrated to be representative of the interest factor in
the particular case. For the years ended December 31, 1992 and 1994, earnings
were insufficient to cover fixed charges as evidenced by a less than one-to-one
coverage ratio as shown above. Additional earnings of $78,473,000 and
$17,855,000 were necessary for the years ended December 31, 1992 and 1994,
respectively,
 
                                        3
<PAGE>   5
 
to provide a one-to-one coverage ratio. Nonrecurring costs, as discussed below,
caused the less than one-to-one coverage in each of these periods.
 
     The following table sets forth the Company's consolidated ratios of
earnings to fixed charges for the periods shown on a supplemental basis
excluding nonrecurring items:
 
<TABLE>
<CAPTION>
                                                                                                THREE MONTHS
                                                 YEAR ENDED DECEMBER 31,                           ENDED
                             ----------------------------------------------------------------    MARCH 31,
                               1992          1993          1994          1995          1996         1997
                             --------      --------      --------      --------      --------   ------------
<S>                          <C>           <C>           <C>           <C>           <C>        <C>
Supplemental...............    1.07X         1.81X         2.15X         2.88X         4.36X        5.11X
</TABLE>
 
     Nonrecurring items in 1996 represent merger costs, primarily related to
mergers with Sanifill, Inc. in August 1996 and Western Waste Industries
("Western") in May 1996, and unusual items, primarily related to retirement
benefits associated with Western's pre-merger retirement plan, estimated future
losses related to municipal solid waste contracts in California as a result of
the continuing decline in prices of recyclable materials, estimated losses
related to the disposition of certain non-core business assets, project reserves
related to Mexican operations, and various other terminated projects.
Nonrecurring items in 1995 primarily represent merger costs related to the
merger with Chambers Development Company, Inc. ("Chambers") in June 1995 and
nonrecurring interest related to extension fees and other charges associated
with the refinancing of Chambers' pre-merger debt. Nonrecurring items in 1994
primarily represent shareholder litigation costs incurred in connection with a
settled class action of consolidated suits on similar claims alleging federal
securities law violations against Chambers, certain of its officers and
directors, its former auditors, and the underwriters of its securities.
Nonrecurring items in 1993 were not material. Nonrecurring items in 1992
primarily represent various restructuring charges and charges to asset reserves
by Western and Chambers.
 
                         DESCRIPTION OF DEBT SECURITIES
 
     The Debt Securities will constitute either senior debt of the Company
("Senior Debt Securities") or subordinated debt of the Company ("Subordinated
Debt Securities"). Debt Securities may be issued from time to time under one or
more indentures, each dated as of a date on or prior to the issuance of the Debt
Securities to which it relates. Senior Debt Securities and Subordinated Debt
Securities may be issued pursuant to separate indentures (respectively, a
"Senior Debt Indenture" and a "Subordinated Debt Indenture"), in each case
between the Company and Texas Commerce Bank National Association ("Texas
Commerce Bank"), and in the form that has been filed as an exhibit to the
Registration Statement of which this Prospectus is a part, subject to such
amendments or supplements as may be adopted from time to time. The Company
previously has entered into a Subordinated Indenture dated as of February 1,
1997 with Texas Commerce Bank in the form filed as an exhibit to the Company's
Current Report on Form 8-K (file no. 1-12154) filed with the Commission on
February 7, 1997. See "Provisions Applicable Solely to Subordinated Debt
Securities." The Senior Debt Indenture and the Subordinated Debt Indenture, as
amended or supplemented from time to time, are sometimes hereinafter referred to
individually as an "Indenture" and collectively as the "Indentures." Texas
Commerce Bank (and any successors thereto as trustees under the respective
Indentures) is hereafter referred to as the "Trustee." The following summaries
of actual or anticipated provisions of the Indentures and the Debt Securities do
not purport to be complete and such summaries are subject to the detailed
provisions of the applicable Indenture to which reference is hereby made for a
full description of such provisions, including the definition of certain terms
used herein. Section references in parentheses below are to sections in both
Indentures unless otherwise indicated. Wherever particular sections or defined
terms of the applicable Indenture are referred to, such sections or defined
terms are incorporated herein by reference as part of the statement made, and
the statement is qualified in its entirety by such reference. The Indentures are
substantially identical, except for certain covenants of the Company and
provisions relating to subordination and conversion.
 
     The Debt Securities may be issued from time to time in one or more series.
The following description of the Debt Securities sets forth certain general
terms and provisions of the Debt Securities of all series. The
 
                                        4
<PAGE>   6
 
particular terms of each series of Debt Securities offered by any Prospectus
Supplement will be described therein.
 
PROVISIONS APPLICABLE TO BOTH SENIOR AND SUBORDINATED DEBT SECURITIES
 
     General. The Debt Securities will be unsecured senior or subordinated
obligations of the Company and may be issued from time to time in one or more
series. The Indentures do not limit the amount of Debt Securities, debentures,
notes or other types of indebtedness that may be issued by the Company or any of
its subsidiaries nor, other than as may be set forth in any Prospectus
Supplement, do they restrict transactions between the Company and its affiliates
or the payment of dividends or other distributions by the Company to its
stockholders. The rights of the Company's creditors, including holders of Debt
Securities, will be limited to the assets of the Company and will not be an
obligation of any of its Subsidiaries. In addition, other than as may be set
forth in any Prospectus Supplement, the Indentures do not and the Debt
Securities will not contain any covenants or other provisions that are intended
to afford holders of the Debt Securities special protection in the event of
either a change of control of the Company or a highly leveraged transaction by
the Company.
 
     Reference is made to the Prospectus Supplement for the following terms of
and information relating to the Debt Securities (to the extent such terms are
applicable to such Debt Securities): (i) the title of the Debt Securities; (ii)
classification as either Senior Debt Securities or Subordinated Debt Securities;
(iii) whether the Debt Securities that constitute Subordinated Debt Securities
are convertible into Common Stock and, if so, the terms and conditions upon
which such conversion will be effected, including the initial conversion price
or conversion rate and any adjustments thereto in addition to or different from
those described herein, the conversion period and other conversion provisions in
addition to or in lieu of those described herein; (iv) any limit on the
aggregate principal amount of the Debt Securities; (v) whether the Debt
Securities are to be issuable as Registered Securities or Bearer Securities or
both, whether any of the Debt Securities are to be issuable initially in
temporary global form and whether any of the Debt Securities are to be in
permanent global form; (vi) the price or prices (expressed as a percentage of
the aggregate principal amount thereof) at which the Debt Securities will be
issued; (vii) the date or dates on which the Debt Securities will mature; (viii)
the rate or rates per annum (or the method by which such will be determined) at
which the Debt Securities will bear interest, if any, and the date from which
any such interest will accrue; (ix) the Interest Payment Dates on which any such
interest on the Debt Securities will be payable, the date on which payment of
such interest, if any, will commence and the Regular Record Dates for any
interest payable on any Debt Securities which are Registered Securities on any
Interest Payment Date and the extent to which, or the manner in which, any
interest payable on a temporary global Debt Security on an Interest Payment Date
will be paid; (x) any mandatory or optional sinking fund or analogous
provisions; (xi) each office or agency where, subject to the terms of the
Indentures as described below under "Payment and Paying Agents," the principal
of and any premium and interest on the Debt Securities will be payable and each
office or agency where, subject to the terms of the Indentures as described
below under "Form, Exchange, Registration and Transfer," the Debt Securities may
be presented for registration of transfer or exchange; (xii) the right, if any,
or obligation, if any, of the Company to redeem the Debt Securities at its
option and the period or periods, if any, within which and the price or prices
at which the Debt Securities may, pursuant to any optional or mandatory
redemption provisions, be redeemed, in whole or in part, and the other detailed
terms and provisions of any such optional or mandatory redemption; (xiii) the
denominations in which any Debt Securities which are Registered Securities will
be issuable, if other than denominations of $1,000 and any integral multiple
thereof, and the denomination or denominations in which any Debt Securities
which are Bearer Securities will be issuable, if other than the denomination of
$5,000; (xiv) the currency or currencies (including composite currencies) in
which payment of principal of and any premium and interest on the Debt
Securities is payable if other than United States dollars; (xv) any index used
to determine the amount of payments of principal of and any premium and interest
on the Debt Securities; (xvi) information with respect to book-entry procedures,
if any; (xvii) any deletions from, modification of or additions to the Events of
Default or covenants of the Company with respect to such Debt Securities; and
(xviii) any other terms of the Debt Securities not inconsistent with the
provisions of the Indentures. (Section 301) Any such Prospectus Supplement will
also describe any special provisions for the payment of additional amounts with
respect to the Debt Securities.
 
                                        5
<PAGE>   7
 
     Debt Securities may be issued as Original Issue Discount Securities. An
Original Issue Discount Security is a Debt Security, including any zero-coupon
security, which is issued at a price lower than the amount payable upon the
Stated Maturity thereof and which provides that upon redemption or acceleration
of the maturity thereof an amount less than the amount payable upon the Stated
Maturity thereof and determined in accordance with the terms of such Debt
Security shall become due and payable. Special United States federal income tax
considerations applicable to Debt Securities issued at an original issue
discount, including Original Issue Discount Securities, and special United
States tax considerations and other terms and restrictions applicable to any
Debt Securities which are issued in bearer form, offered exclusively to United
States Aliens or denominated in other than United States dollars, will be set
forth in a Prospectus Supplement relating thereto.
 
     Form, Exchange, Registration and Transfer. Debt Securities of a series may
be issuable in definitive form solely as Registered Securities, solely as Bearer
Securities or as both Registered Securities and Bearer Securities. Unless
otherwise indicated in an applicable Prospectus Supplement, Bearer Securities
will have interest coupons attached. (Section 201) The Indentures also provide
that Debt Securities of a series may be issuable in temporary or permanent
global form. (Section 201)
 
     Registered Securities of any series will be exchangeable for other
Registered Securities of the same series of any authorized denominations and of
a like aggregate principal amount and tenor. In addition, if Debt Securities of
any series are issuable as both Registered Securities and Bearer Securities, at
the option of the Holder, and subject to the terms of the applicable Indenture,
Bearer Securities (with all unmatured coupons, except as provided below, and all
matured coupons in default) of such series will be exchangeable for Registered
Securities of the same series of any authorized denominations and of a like
aggregate principal amount and tenor. Bearer Securities surrendered in exchange
for Registered Securities between a Regular Record Date or a Special Record Date
and the relevant date for payment of interest shall be surrendered without the
coupon relating to such date for payment of interest, and interest accrued as of
such date for payment of interest will not be payable in respect of the
Registered Security issued in exchange for such Bearer Security, but will be
payable only to the Holder of such coupon when due in accordance with the terms
of the applicable Indenture. Bearer Securities will not be issued in exchange
for Registered Securities. (Section 305)
 
     Debt Securities may be presented for exchange as provided above, and
Registered Securities may be presented for registration of transfer (with the
form of transfer endorsed thereon duly executed), at the office of the Security
Registrar or at the office of any transfer agent designated by the Company for
such purpose with respect to any series of Debt Securities and referred to in an
applicable Prospectus Supplement, without service charge and upon payment of any
taxes and other governmental charges as described in the Indentures. Such
transfer or exchange will be effected upon the Security Registrar or such
transfer agent, as the case may be, being satisfied with the documents of title
and identity of the person making the request. Unless otherwise indicated in any
Prospectus Supplement, the Company will serve as Security Registrar. (Section
305) If a Prospectus Supplement refers to any transfer agents (in addition to
the Security Registrar) initially designated by the Company with respect to any
series of Debt Securities, the Company may at any time rescind the designation
of any such transfer agent or approve a change in the location through which any
such transfer agent acts, except that, if Debt Securities of a series are
issuable solely as Registered Securities, the Company will be required to
maintain a transfer agent in each Place of Payment for such series and, if Debt
Securities of a series are also issuable as Bearer Securities, the Company will
be required to maintain (in addition to the Security Registrar) a transfer agent
in a Place of Payment for such series located outside the United States. The
Company may at any time designate additional transfer agents with respect to any
series of Debt Securities. (Section 1002)
 
     Title to any Bearer Securities (including Bearer Securities in permanent
global form) and any coupons appertaining thereto will pass by delivery. The
Company, the Trustee and any agent of the Company or the Trustee may treat the
bearer of any Bearer Security and the bearer of any coupon and the registered
holder of any Registered Security as the owner thereof (whether or not such Debt
Security or coupon shall be overdue and notwithstanding any notice to the
contrary) for the purpose of making payment and for all other purposes. (Section
308)
 
                                        6
<PAGE>   8
 
     In the event of any redemption in part, the Company shall not be required
to (i) issue, register the transfer of or exchange Debt Securities of any series
during a period beginning at the opening of business 15 days prior to the
selection of Debt Securities of that series for redemption and ending on the
close of business on (A) if Debt Securities of the series are issuable only as
Registered Securities, the day of mailing of the relevant notice of redemption
and (B) if Debt Securities of the series are issuable as Bearer Securities, the
date of the first publication of the relevant notice of redemption or, if
Securities of the series are also issuable as Registered Securities and there is
no publication, the mailing of the relevant notice of redemption; (ii) register
the transfer of or exchange any Registered Security, or portion thereof, called
for redemption, except the unredeemed portion of any Registered Security being
redeemed in part; or (iii) exchange any Bearer Security called for redemption,
except to exchange such Bearer Security for a Registered Security of that series
and like tenor which is immediately surrendered for redemption. (Section 305)
 
     Replacement of Securities and Coupons. Any mutilated Debt Security or a
Debt Security with a mutilated coupon appertaining thereto will be replaced by
the Company at the expense of the Holder upon surrender of such Debt Security to
the Trustee. Debt Securities or coupons that become destroyed, stolen or lost
will be replaced by the Company at the expense of the Holder upon delivery to
the Trustee of the Debt Security and coupons or evidence of destruction, loss or
theft thereof satisfactory to the Company and the Trustee; in the case of any
coupon which becomes destroyed, stolen or lost, such coupon will be replaced by
issuance of a new Debt Security in exchange for the Debt Security to which such
coupon appertains. In the case of a destroyed, lost or stolen Debt Security or
coupon, an indemnity satisfactory to the Trustee and the Company may be required
at the expense of the Holder of such Debt Security or coupon before a
replacement Debt Security will be issued. (Section 306)
 
     Payment and Paying Agents. Unless otherwise indicated in an applicable
Prospectus Supplement, payment of principal of and any premium and interest on
Bearer Securities will be payable, subject to any applicable laws and
regulations, at the offices of such Paying Agents outside the United States as
the Company may designate from time to time, in the manner indicated in such
Prospectus Supplement. (Section 1002) Unless otherwise indicated in an
applicable Prospectus Supplement, payment of interest on Bearer Securities on
any Interest Payment Date will be made only against surrender to the Paying
Agent of the coupon relating to such Interest Payment Date. (Section 1001) No
payment with respect to any Bearer Security will be made at any office or agency
of the Company in the United States or by check mailed to any address in the
United States or by transfer to any account maintained with a bank located in
the United States. Notwithstanding the foregoing, payments of principal of and
any premium and interest on Bearer Securities denominated and payable in U.S.
dollars will be made at the office of the Company's Paying Agent in the Borough
of Manhattan, The City of New York, if (but only if) payment of the full amount
thereof in U.S. dollars at all offices or agencies outside the United States is
illegal or effectively precluded by exchange controls or other similar
restrictions. (Section 1002)
 
     Unless otherwise indicated in an applicable Prospectus Supplement, payment
of principal of and any premium and interest on Registered Securities will be
made at the office of such Paying Agent or Paying Agents as the Company may
designate from time to time, except that at the option of the Company payment of
any interest may be made by check mailed on or before the due date to the
address of the Person entitled thereto as such address shall appear in the
Security Register. (Sections 307, 1002) Unless otherwise indicated in an
applicable Prospectus Supplement, payment of any installment of interest on
Registered Securities will be made to the Person in whose name such Registered
Security is registered at the close of business on the Regular Record Date for
such interest. (Section 307)
 
     Unless otherwise indicated in an applicable Prospectus Supplement, the
Company, at its principal executive offices in Houston, Texas, will act as its
own Paying Agent for payments with respect to Debt Securities which are issuable
solely as Registered Securities and the Company will maintain a Paying Agent
outside the United States for payments with respect to Debt Securities (subject
to limitations described above in the case of Bearer Securities) which are
issuable solely as Bearer Securities or as both Registered Securities and Bearer
Securities. Any Paying Agents outside the United States and any other Paying
Agents in the United States initially designated by Company for the Debt
Securities will be named in an applicable Prospectus Supplement. The Company may
at any time designate additional Paying Agents or rescind the
 
                                        7
<PAGE>   9
 
designation of any Paying Agent or approve a change in the office through which
any Paying Agent acts, except that, if Debt Securities of a series are issuable
solely as Registered Securities, the Company will be required to maintain a
Paying Agent in each Place of Payment for such series and, if Debt Securities of
a series are issuable as Bearer Securities, the Company will be required to
maintain (i) a Paying Agent in the Borough of Manhattan, The City of New York
for principal payments with respect to any Registered Securities of the series
(and for payments with respect to Bearer Securities of the series in the
circumstances described above, but not otherwise), and (ii) a Paying Agent in a
Place of Payment located outside the United States where Debt Securities of such
series and any coupons appertaining thereto may be presented and surrendered for
payment. (Section 1002)
 
     All moneys paid by the Company to a Paying Agent for the payment of
principal of and any premium or interest on any Debt Security which remain
unclaimed at the end of two years after such principal, premium or interest
shall have become due and payable will (subject to applicable escheat laws) be
repaid to the Company, and the Holder of such Debt Security or any coupon will
thereafter look only to the Company for payment thereof. (Section 1003)
 
     Global Debt Securities. Debt Securities of a series may be issued in whole
or in part in the form of one or more global Debt Securities that will be
deposited with, or on behalf of, a depository identified in the Prospectus
Supplement relating to such series. Global Debt Securities may be issued only in
fully registered form and in either temporary or permanent form. (Section 203)
Unless and until it is exchanged in whole or in part for the individual Debt
Securities represented thereby, a global Debt Security may not be transferred
except as a whole by the depository for such global Debt Security to a nominee
of such depository or by a nominee of such depository to such depository or
another nominee of such depository or by the depository or any nominee to a
successor depository or any nominee of such successor.
 
     The specific terms of the depository arrangement with respect to a series
of Debt Securities in the form of one or more global Debt Securities will be
described in the Prospectus Supplement relating to such series.
 
     Satisfaction and Discharge of Indenture. Each Indenture provides that the
Company may discharge the Indenture (except as to any surviving rights of
registration of transfer or exchange of Debt Securities and any right to receive
additional amounts) with respect to all Debt Securities issued under the
Indenture, which Debt Securities have not already been delivered to the Trustee
for cancellation and which either have become due and payable or are by their
terms due and payable within one year (or are to be called for redemption within
one year) by depositing with the Trustee as trust funds an amount sufficient to
pay when due the principal of and premium, if any, and interest, if any, on all
outstanding Debt Securities when due. (Section 401).
 
     Defeasance and Discharge. Each Indenture provides that, if the Company so
elects by Board Resolution with respect to the Debt Securities of any series
issued under such Indenture (other than convertible Subordinated Debt
Securities), the Company will be discharged from any and all obligations in
respect of the Debt Securities of such series (except for certain obligations
relating to temporary Debt Securities and exchange of Debt Securities,
registration of transfer or exchange of Debt Securities of such series,
replacement of stolen, lost or mutilated Debt Securities of such series,
maintenance of paying agencies to hold moneys for payment in trust and payment
of additional amounts, if any, required in consequence of United States
withholding taxes imposed on payments to non-United States persons) upon the
deposit with the Trustee, in trust, of money and/or U.S. Government Obligations
which through the payment of interest and principal in respect thereof in
accordance with their terms will provide money in an amount sufficient to pay
the principal of (and premium, if any), and each installment of interest on, the
Debt Securities of such series on the Stated Maturity of such payments in
accordance with the terms of such Indenture and the Debt Securities of such
series. (Sections 1302, 1304) Such a trust may only be established if, among
other things, the Company has delivered to the Trustee an Opinion of Counsel to
the effect that (i) the Company has received from, or there has been published
by, the Internal Revenue Service a ruling, or (ii) since the date of such
Indenture there has been a change in applicable federal income tax law, in
either case to the effect that, and based thereon such Opinion of Counsel shall
confirm that, the Holders of such series will not recognize income, gain or loss
for federal income tax purposes as a result of such deposit, defeasance and
discharge, and will be subject to
 
                                        8
<PAGE>   10
 
federal income tax on the same amounts and in the same manner and at the same
times as would have been the case if such deposit, defeasance and discharge had
not occurred. (Section 1304) In the event of any such defeasance and discharge
of Debt Securities of such series, Holders of such series would be entitled to
look only to such trust fund for payment of principal of and any premium and any
interest on their Debt Securities until Maturity.
 
     Covenant Defeasance. Each Indenture also provides that, if the Company so
elects by Board Resolution with respect to the Debt Securities of any series
issued thereunder, the Company may omit to comply with certain restrictive
covenants, including (in the case of the Senior Debt Indenture) the covenants
described under "-- Provisions Applicable Solely to Senior Debt
Securities -- Limitation on Liens" and "-- Limitations on Sale and Leaseback
Transactions," but excluding (in the case of the Subordinated Debt Indenture)
any applicable obligation of the Company respecting the conversion of Debt
Securities of such series into Common Stock, and any such omission shall not be
an Event of Default with respect to the Debt Securities of such series, upon the
deposit with the Trustee, in trust, of money and/or U.S. Government Obligations
which through the payment of interest and principal in respect thereof in
accordance with their terms will provide money in an amount sufficient to pay
the principal of (and premium, if any), and each installment of interest on, the
Debt Securities of such series on the Stated Maturity of such payments in
accordance with the terms of such Indenture and the Debt Securities of such
series. The obligations of the Company under such Indenture and the Debt
Securities of such series other than with respect to such covenants shall remain
in full force and effect. (Section 1303) Such a trust may be established only
if, among other things, the Company has delivered to the Trustee an Opinion of
Counsel to the effect that the Holders of such series will not recognize income,
gain or loss for federal income tax purposes as a result of such deposit and
defeasance of certain obligations and will be subject to federal income tax on
the same amounts and in the same manner and at the same time as would have been
the case if such deposit and defeasance had not occurred. (Section 1304)
 
     Although the amount of money and U.S. Government Obligations on deposit
with the Trustee would be intended to be sufficient to pay amounts due on the
Debt Securities of such series at the time of their Stated Maturity, in the
event the Company exercises its option to omit compliance with the covenants
defeased with respect to the Debt Securities of any series as described above,
and the Debt Securities of such series are declared due and payable because of
the occurrence of any Event of Default, such amount may not be sufficient to pay
amounts due on the Debt Securities of such series at the time of the
acceleration resulting from such Event of Default. The Company shall in any
event remain liable for such payments as provided in the applicable Indenture.
 
     Federal Income Tax Consequences. Under current United States federal income
tax law, defeasance and discharge would likely be treated as a taxable exchange
of Debt Securities to be defeased for an interest in the defeasance trust. As a
consequence, a holder would recognize gain or loss equal to the difference
between the holder's cost or other tax basis for such Debt Securities and the
value of the holder's interest in the defeasance
trust, and thereafter would be required to include in income the holder's share
of the income, gain or loss of the defeasance trust. Under current United States
federal income tax law, covenant defeasance would ordinarily not be treated as a
taxable exchange of such Debt Securities.
 
     Meetings, Modification and Waiver. Modifications and amendments of either
Indenture may be made by the Company and the Trustee with the consent of the
Holders of a majority in aggregate principal amount of the Outstanding
Securities of each series affected by such modification or amendment; provided,
however, that no such modification or amendment may, without the consent of the
Holder of each Outstanding Security affected thereby, (a) change the Stated
Maturity of the principal of, or any installment of principal of or interest on,
any Debt Security, (b) change the Redemption Date with respect to any Debt
Security, (c) reduce the principal amount of, or premium or interest on, any
Debt Security, (d) change any obligation of the Company to pay additional
amounts, (e) reduce the amount of principal of an Original Issue Discount
Security payable upon acceleration of the Maturity thereof, (f) change the coin
or currency in which any Debt Security or any premium or interest thereon is
payable, (g) change the redemption right of any Holder, (h) impair the right to
institute suit for the enforcement of any payment on or with respect to any Debt
Security or any conversion right with respect thereto, (i) reduce the percentage
in principal amount of
 
                                        9
<PAGE>   11
 
Outstanding Securities of any series, the consent of whose Holders is required
for modification or amendment of such Indenture or for waiver of compliance with
certain provisions of such Indenture or for waiver of certain defaults, (j)
reduce the requirements contained in such Indenture for quorum or voting, (k)
change any obligation of the Company to maintain an office or agency in the
places and for the purposes required by such Indenture, (l) adversely affect the
right to convert Subordinated Debt Securities, if applicable, or (m) modify any
of the above provisions. (Section 902)
 
     The Subordinated Debt Indenture may not be amended to alter the
subordination of any outstanding Subordinated Debt Securities without the
consent of each holder of Senior Indebtedness (as defined below under
"-- Provisions Applicable Solely to Subordinated Debt Securities") then
outstanding that would be adversely affected thereby. (Section 907 of the
Subordinated Debt Indenture)
 
     The Holders of a majority in aggregate principal amount of the Outstanding
Securities of each series may, on behalf of all Holders of that series, waive,
insofar as that series is concerned, compliance by the Company with certain
restrictive provisions of the Indenture under which such series has been issued.
(Section 1007 of the Senior Debt Indenture; Section 1008 of the Subordinated
Debt Indenture) The Holders of a majority in aggregate principal amount of the
Outstanding Securities of each series may, on behalf of all Holders of that
series, waive any past default under the applicable Indenture with respect to
any Debt Securities of that series, except a default (a) in the payment of
principal of, or premium, if any, or any interest on any Debt Security of such
series or (b) in respect of a covenant or provision of such Indenture which
cannot be modified or amended without the consent of the Holder of each
Outstanding Security of such series affected. (Section 513)
 
     Each Indenture provides that in determining whether the Holders of the
requisite principal amount of the Outstanding Securities have given any request,
demand, authorization, direction, notice, consent or waiver thereunder or are
present at a meeting of the Holders for quorum purposes, (i) the principal
amount of an Original Issue Discount Security that is deemed to be Outstanding
will be the amount of the principal that would be due and payable as of the date
of such determination upon acceleration of the Maturity thereof, and (ii) the
principal amount of a Debt Security denominated in a foreign currency or
currency units will be the U.S. dollar equivalent, determined on the date of
original issuance of such Debt Security, of the principal amount of such Debt
Security or, in the case of an Original Issue Discount Security, the U.S. dollar
equivalent, determined on the date of original issuance of such Security, of the
amount determined as provided in (i) above. (Section 101)
 
     Each Indenture contains provisions for convening meetings of the Holders of
a series if Debt Securities of that series are issuable as Bearer Securities.
(Section 1401) A meeting may be called at any time by the Trustee, and also,
upon request, by the Company or the Holders of at least 10% in aggregate
principal amount of the Outstanding Securities of such series, in any such case
upon notice given in accordance with "Notices" below. (Section 1402) Except for
any consent which must be given by the Holder of each Outstanding Security
affected thereby, as described above, any resolution presented at a meeting (or
adjourned meeting at which a quorum is present) may be adopted by the
affirmative vote of the Holders of a majority in aggregate principal amount of
the Outstanding Securities of that series; provided, however, that any
resolution with respect to any request, demand, authorization, direction,
notice, consent, waiver or other action which may be made, given or taken by the
Holders of a specified percentage, which is less than a majority, in aggregate
principal amount of the Outstanding Securities of a series may be adopted at a
meeting (or adjourned meeting duly reconvened at which a quorum is present) by
the affirmative vote of the Holders of such specified percentage in aggregate
principal amount of the Outstanding Securities of that series. Any resolution
passed or decision taken at any meeting of Holders of any series duly held in
accordance with the applicable Indenture will be binding on all Holders of that
series and related coupons. The quorum at any meeting, and at any reconvened
meeting, will be Persons holding or representing a majority in aggregate
principal amount of the Outstanding Securities of a series. (Section 1404)
 
     Notices. Except as otherwise provided in an applicable Prospectus
Supplement, notices to Holders of Bearer Securities will be given by publication
at least twice in a daily newspaper in the city of New York and in such other
city or cities as may be specified in such Bearer Securities. Notices to Holders
of Registered
 
                                       10
<PAGE>   12
 
Securities will be given by first-class mail to the addresses of such Holders as
they appear in the Security Register. (Section 106)
 
     Governing Law. The Indentures, the Debt Securities and coupons will be
governed by, and construed in accordance with, the laws of the State of New
York. (Section 113)
 
     Regarding the Trustee. The Trustee appointed and serving as trustee
pursuant to each of the Senior Debt Indenture and the Subordinated Debt
Indenture is Texas Commerce Bank.
 
     Each Indenture contains certain limitations on the right of the Trustee,
should it become a creditor of the Company, to obtain payment of claims in
certain cases, or to realize for its own account on certain property received in
respect of any such claim as security or otherwise. (Section 613) The Trustee is
permitted to engage in certain other transactions; however, if it acquires any
conflicting interest (as described in the Indentures), it must eliminate such
conflict or resign. (Section 608)
 
     The holders of a majority in principal amount of all outstanding Debt
Securities of a series (or if more than one series is affected thereby, all
series so affected, voting as a single class) will have the right to direct the
time, method and place of conducting any proceeding for exercising any remedy or
power available to the Trustee for such series or all such series so affected.
 
     In case an Event of Default shall occur (and shall not be cured) under any
Indenture relating to a series of Debt Securities and is known to the Trustee
for such series, such Trustee shall exercise such of the rights and powers
vested in it by such Indenture and use the same degree of care and skill in its
exercise as a prudent person would exercise or use under the circumstances in
the conduct of his own affairs. Subject to such provisions, no Trustee will be
under any obligation to exercise any of its rights or powers under the
applicable Indenture at the request of any of the holders of Debt Securities
unless they shall have offered to such Trustee security and indemnity
satisfactory to it.
 
     Pursuant to the Trust Indenture Act, a trustee under an indenture may be
deemed to have a conflicting interest, and may, under certain circumstances set
forth in the Trust Indenture Act, be required to resign as trustee under such
indenture, if the securities under such indenture are in default (as such term
is defined in such indenture) and the trustee is the trustee under another
indenture under which any other securities of the same obligor are outstanding,
subject to certain exceptions set forth in the Trust Indenture Act. In such
event, the obligor must take prompt steps to have a successor trustee appointed
in the manner provided in the indenture from which the trustee has resigned.
Accordingly, Texas Commerce Bank, as trustee under the Senior Debt Indenture and
the Subordinated Debt Indenture, could be required to resign as trustee under
one of such Indentures should a default occur under one of such Indentures. In
such event, the Company would be required to take prompt steps to have a
successor trustee or successor trustees appointed in the manner provided in the
applicable Indenture.
 
     Texas Commerce Bank, as the trustee under the Senior Debt Indenture and the
Subordinated Debt Indenture, may be a depositary for funds of, may make loans to
and may perform other routine banking services for the Company and certain of
its affiliates in the normal course of business.
 
PROVISIONS APPLICABLE SOLELY TO SENIOR DEBT SECURITIES
 
     General. Senior Debt Securities will be issued under the Senior Debt
Indenture, and each series will rank pari passu as to the right of payment of
principal and any premium and interest with each other series issued thereunder
and will rank senior to all series of Subordinated Debt Securities issued and
outstanding and that may be issued from time to time.
 
     Certain Definitions. For purposes of the following discussion, the
following definitions are applicable (Section 1008 and 1009 of the Senior Debt
Indenture).
 
     "Attributable Debt" shall mean, as of any particular time, the present
value, discounted at a rate per annum equal to (i) the implied lease rate of or
(ii) if the implied lease rate is not known to the Company, then the weighted
average interest rate of all Senior Debt Securities outstanding at the time
under the Senior Debt Indenture compounded semi-annually, in either case, of the
obligation of a lessee for rental payments during
 
                                       11
<PAGE>   13
 
the remaining term of any lease (including any period for which such lease has
been extended or may, at the option of the lessor, be extended); the net amount
of rent required to be paid for any such period shall be the total amount of the
rent payable by the lessee with respect to such period, but may exclude amounts
required to be paid on account of maintenance and repairs, insurance, taxes,
assessments, water rates and similar charges; and, in the case of any lease
which is terminable by the lessee upon the payment of a penalty, such net amount
shall also include the amount of such penalty, but no rent shall be considered
as required to be paid under such lease subsequent to the first date upon which
it may be so terminated.
 
     The term "Consolidated Net Tangible Assets" shall mean, at any date of
determination, the total amount of assets of the Company after deducting
therefrom: (i) all the current liabilities (excluding (a) any current
liabilities that by their terms are extendible or renewable at the option of the
obligor thereon to a time more than 12 months after the time as of which the
amount thereof is being computed, and (b) current maturities of long term debt)
and (ii) the value (net of any applicable reserves) of all intangible assets
such as excess of cost over net assets of acquired businesses, customer lists,
covenants not to compete, licenses, and permits, all as set forth on the
consolidated balance sheet of the Company and its consolidated Subsidiaries for
the Company's most recently completed fiscal quarter, prepared in accordance
with United States generally accepted accounting principles.
 
     "Funded Debt" shall mean any Indebtedness which by its terms matures at or
is extendable or renewable at the sole option of the obligor without requiring
the consent of the obligee to a date more than twelve months after the date of
the creation of such Indebtedness.
 
     "Guaranty" shall mean any agreement, undertaking or arrangement by which
any Person guarantees, endorses or otherwise becomes or is contingently liable
upon (by direct or indirect agreement, contingent or otherwise, to provide funds
for payment, to supply funds to, or otherwise to invest in, a debtor, or
otherwise to assure a creditor against loss) the debt, obligation or other
liability of any other Person (other than by endorsements of instruments in the
course of collection), or guarantees the payment of dividends or other
distributions upon the shares of any other Person. The amount of the obligor's
obligation under any Guaranty shall (subject to any limitation set forth
therein) be deemed to be the amount of such other Person's debt, obligation or
other liability or the amount of such dividends or other distributions
guaranteed.
 
     "Indebtedness" of any Person shall mean
 
          (a) all obligations of such Person for borrowed money (including,
     without limitation, all notes payable and drafts accepted representing
     extension of credit and all obligations evidenced by bonds, debentures,
     notes or other similar instruments) or on which interest charges are
     customarily paid, all as shown on a balance sheet of such Person as of the
     date at which Indebtedness is to be determined;
 
          (b) all other items which, in accordance with generally accepted
     accounting principles, would be included as liabilities on the liability
     side of a balance sheet of such Person as of the date at which Indebtedness
     is to be determined; and
 
          (c) whether or not so included as liabilities in accordance with
     generally accepted accounting principles,
 
             (i) all indebtedness (excluding, however, prepaid interest thereon)
        secured by a Security Interest in property owned or being purchased by
        such Person (including, without limitation, indebtedness arising under
        conditional sales or other title retention agreements) whether or not
        such indebtedness shall have been assumed by such Person, and
 
             (ii) all Guaranties of such Person.
 
     "Principal Property" shall mean any waste processing, waste disposal or
resource recovery plant or similar facility located within the United States
(other than its territories and possessions and Puerto Rico) or Canada and owned
by, or leased to, the Company or any Restricted Subsidiary, except (a) any such
plant or facility (i) owned or leased jointly or in common with one or more
persons other than the Company and its Restricted Subsidiaries in which the
interest of the Company and its Restricted Subsidiaries does not exceed 50%, or
(ii) which the Board of Directors determines in good faith is not of material
importance to the total business
 
                                       12
<PAGE>   14
 
conducted, or assets owned, by the Company and its Subsidiaries as an entirety,
or (b) any portion of such plant or facility which the Board of Directors
determines in good faith not to be of material importance to the use or
operation thereof.
 
     "Restricted Subsidiary" shall mean any Subsidiary (other than any
Subsidiary of which the Company owns directly or indirectly less than all of the
outstanding Voting Stock) (a) principally engaged in, or whose principal assets
consist of property used by the Company or any Restricted Subsidiary in, the
storage, collection, transfer, interim processing or disposal of waste within
the United States of America or Canada, or (b) which the Company shall designate
as a Restricted Subsidiary in an Officers' Certificate delivered to the Trustee.
 
     "Security Instrument" shall mean any security agreement, chattel mortgage,
assignment, financing or similar statement or notice, continuation statement,
other agreement or instrument, or amendment or supplement to any thereof,
providing for, evidencing or perfecting any Security Interest or lien.
 
     "Security Interest" shall mean any interest in any real or personal
property or fixture which secures payment or performance of an obligation and
shall include any mortgage, lien, encumbrance, charge or other security interest
of any kind, whether arising under a Security Instrument or as a matter of law,
judicial process or otherwise.
 
     Consolidation, Merger, Sale. The Senior Debt Indenture provides that the
Company may not consolidate with or merge into any other Person or convey,
transfer or lease its properties and assets substantially as an entirety to any
Person, unless (1) the Person formed by such consolidation or into which the
Company is merged or the Person which acquires by conveyance or transfer, or
which leases, the properties and assets of the Company substantially as an
entirety shall be a corporation, partnership or trust which shall expressly
assume, by a supplemental indenture, executed and delivered to the Trustee, in
form satisfactory to the Trustee, the due and punctual payment of the principal
of and any premium and interest (including all additional amounts, if any,
payable pursuant to the Senior Debt Indenture) on all the Senior Debt Securities
and the performance or observance of every other covenant of the Senior Debt
Indenture on the part of the Company to be performed or observed; and (2)
immediately after giving effect to such transaction and treating any
indebtedness which becomes an obligation of the Company or a Subsidiary as a
result of such transaction as having been incurred by the Company or such
Subsidiary at the time of such transaction, no Event of Default, and no event
which, after notice or lapse of time or both, would become an Event of Default,
shall have happened and be continuing. Upon any consolidation of the Company
with, or merger of the Company into, any other Person or any conveyance,
transfer or lease of the properties and assets of the Company substantially as
an entirety, the successor Person formed by such consolidation or into which the
Company is merged or to which such conveyance, transfer or lease is made shall
succeed to, and be substituted for, and may exercise every right and power of,
the Company under the Senior Debt Indenture with the same effect as if such
successor Person had been named as the Company herein, and thereafter, except in
the case of a lease, the predecessor Person shall be relieved of all obligations
and covenants under the Senior Debt Indenture and the Senior Debt Securities and
coupons and may liquidate and dissolve. (Sections 801, 802 of the Senior Debt
Indenture)
 
     Event of Default. Unless otherwise specified in the applicable Prospectus
Supplement, an Event of Default is defined under the Senior Debt Indenture with
respect to the Senior Debt Securities of any series issued under such Senior
Debt Indenture as being one or more of the following events:
 
          (1) default in the payment of any interest upon any Senior Debt
     Security of that series when it becomes due and payable, and continuance of
     such default for a period of 30 days; or
 
          (2) default in the payment of the principal of (or premium, if any,
     on) any Senior Debt Security of that series as and when the same becomes
     due and payable whether at Stated Maturity, by declaration of acceleration,
     call for redemption or otherwise; or
 
          (3) default in the deposit of any sinking fund payment, when and as
     due by the terms of a Senior Debt Security of that series; or
 
                                       13
<PAGE>   15
 
          (4) default in the performance, or breach, of any other covenant or
     warranty of the Company in the Senior Debt Indenture (other than a covenant
     or warranty a default in whose performance or whose breach is elsewhere in
     Section 501 of the Senior Debt Indenture specifically dealt with or which
     has expressly been included in the Senior Debt Indenture solely for the
     benefit of a series of Senior Debt Securities other than that series), and
     continuance of such default or breach for a period of 60 days after there
     has been given, by registered or certified mail, to the Company by the
     Trustee or to the Company and the Trustee by the Holders of at least 25% in
     principal amount of the Outstanding Senior Debt Securities of that series a
     written notice specifying such default or breach and requiring it to be
     remedied and stating that such notice is a "Notice of Default" under the
     Senior Debt Indenture; or
 
          (5) the entry by a court having jurisdiction in the premises of (A) a
     decree or order for relief in respect of the Company in an involuntary case
     or proceeding under any applicable Federal or State bankruptcy, insolvency,
     reorganization or other similar law or (B) a decree or order adjudging the
     Company a bankrupt or insolvent, or approving as properly filed a petition
     seeking reorganization, arrangement, adjustment or composition of or in
     respect of the Company under any applicable Federal or State law, or
     appointing a custodian, receiver, liquidator, assignee, trustee,
     sequestrator or other similar official of the Company or of any substantial
     part of its property, or ordering the winding up or liquidation of its
     affairs, and the continuance of any such decree or order for relief or any
     such other decree or order unstayed and in effect for a period of 90
     consecutive days; or
 
          (6) the commencement by the Company of a voluntary case or proceeding
     under any applicable Federal or State bankruptcy, insolvency,
     reorganization or other similar law or of any other case or proceeding to
     be adjudicated a bankrupt or insolvent, or the consent by it to the entry
     of a decree or order for relief in respect of the Company in an involuntary
     case or proceeding under any applicable Federal or State bankruptcy,
     insolvency, reorganization or other similar law or the commencement of any
     bankruptcy or insolvency case or proceeding against it, or the filing by it
     of a petition or answer or consent seeking reorganization or relief under
     any applicable Federal or State law, or the consent by it to the filing of
     such petition or to the appointment of or taking possession by a custodian,
     receiver, liquidator, assignee, trustee, sequestrator or similar official
     of the Company or of any substantial part of its property, or the making by
     it of an assignment for the benefit of creditors, or the admission by it in
     writing of its inability to pay its debts generally as they become due, or
     the taking of corporate action by the Company in furtherance of any such
     action; or
 
          (7) any other Event of Default provided with respect to Senior Debt
     Securities of that series. (Section 501 of the Senior Debt Indenture)
 
     If an Event of Default with respect to Senior Debt Securities of any series
at the time Outstanding occurs and is continuing, then in every such case,
either the Trustee or the Holders of not less than 25% in principal amount of
the Outstanding Senior Debt Securities of that series may declare the principal
amount (or, if any of the Senior Debt Securities of that series are Original
Issue Discount Securities, such portion of the principal amount of such Senior
Debt Securities as may be specified in the terms thereof) of all of the Senior
Debt Securities of that series to be due and payable immediately, by a notice in
writing to the Company (and to the Trustee if given by Holders), and upon any
such declaration such principal amount (or specified amount) shall become
immediately due and payable. At any time after such a declaration of
acceleration with respect to the Senior Debt Securities of any series has been
made and before a judgment or decree for payment of the money due has been
obtained by the Trustee, the Holders of a majority in principal amount of the
Outstanding Senior Debt Securities of that series, by written notice to the
Company and the Trustee, may rescind and annul such declaration and its
consequences if: (1) the Company has paid or deposited with the Trustee a sum
sufficient to pay (A) all overdue interest on all Senior Debt Securities of that
series, (B) the principal of (and premium, if any, on) any Senior Debt
Securities of that series which has become due otherwise than by such
declaration of acceleration and any interest thereon at the rate or rates
prescribed therefor in such Senior Debt Securities, (C) to the extent that
payment of such interest is lawful, interest upon overdue interest at the rate
or rates prescribed therefor in such Senior Debt Securities, and (D) all sums
paid or advanced by the Trustee hereunder and the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel; and
(2) all Events of Default with respect to Senior Debt Securities of that series,
other than the
 
                                       14
<PAGE>   16
 
non-payment of the principal of Senior Debt Securities of that series which has
become due solely by such declaration of acceleration, have been cured or waived
as provided in the Senior Debt Indenture. No such rescission shall affect any
subsequent default or impair any right consequent thereon. (Section 502 of the
Senior Debt Indenture) If the Trustee or any Holder of a Senior Debt Security or
coupon has instituted any proceeding to enforce any right or remedy under the
Senior Debt Indenture and such proceeding has been discontinued or abandoned for
any reason, or has been determined adversely to the Trustee or to such Holder,
then and in every such case, subject to any determination in such proceeding,
the Company, the Trustee and the Holders of Senior Debt Securities and coupons
shall be restored severally and respectively to their former positions under the
Senior Debt Indenture and the Senior Debt Securities and thereafter all rights
and remedies of the Trustee and the Holders shall continue as though no such
proceeding had been instituted. (Section 509 of the Senior Debt Indenture)
 
     The Senior Debt Indenture provides that, subject to the duty of the Trustee
during default to act with the required standard of care, the Trustee is under
no obligation to exercise any of its rights or powers under such Indenture at
the request or direction of any of the Holders, unless such Holders shall have
offered to the Trustee reasonable indemnity. (Sections 601, 603 of the Senior
Debt Indenture) No Holder of any Senior Debt Security of any series or any
related coupons shall have any right to institute any proceeding, judicial or
otherwise, with respect to the Senior Debt Indenture, or for the appointment of
a receiver or trustee, or for any other remedy thereunder, unless (1) such
Holder has previously given written notice to the Trustee of a continuing Event
of Default with respect to the Senior Debt Securities of that series; (2) the
Holders of not less than 25% in principal amount of the Outstanding Senior Debt
Securities of that series shall have been made written request to the Trustee to
institute proceedings in respect of such Event of Default in its own name as
Trustee under the Senior Debt Indenture; (3) such Holder or Holders have offered
to the Trustee reasonable indemnity against the costs, expenses and liabilities
to be incurred in compliance with such request; (4) the Trustee for 60 days
after its receipt of such notice, request and offer of indemnity has failed to
institute any such proceeding; and (5) no direction inconsistent with such
written request has been given to the Trustee during such 60-day period by the
Holders of a majority in principal amount of the Outstanding Senior Debt
Securities of that series. (Section 507 of the Senior Debt Indenture)
Notwithstanding any other provisions in the Senior Debt Indenture, the right of
any Holder of any Senior Debt Security or coupon to receive payment of the
principal of and any premium and any interest on such Senior Debt Security or
payment of such coupon on the Stated Maturity or Maturities expressed in such
Senior Debt Security or coupon, 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. (Sections 508, 902 of the Senior Debt
Indenture)
 
     The Holders of a majority in principal amount of the Outstanding Senior
Debt Securities of any series shall have the right to direct the time, method
and place of conducting any proceeding for any remedy available to the Trustee,
or exercising any trust or power conferred on the Trustee, with respect to the
Senior Debt Securities of such series, provided that (1) such direction shall
not be in conflict with any rule of law or with the Senior Debt Indenture; (2)
the Trustee may take any other action deemed proper by the Trustee which is not
inconsistent with such direction; and (3) the Trustee shall not be obligated to
take any action unduly prejudicial to Holders not joining in such direction or
involving the Trustee in personal liability. (Section 512 of the Senior Debt
Indenture) The Holders of a majority in principal amount of the Outstanding
Senior Debt Securities of any series may on behalf of the Holders of all the
Senior Debt Securities of such series waive any past default under the Senior
Debt Indenture with respect to the Senior Debt Securities of such series and its
consequences, except a default in the payment of the principal of or any premium
or interest on any Senior Debt Security of such series or in respect of a
covenant or provision of the Senior Debt Indenture which, pursuant to the Senior
Debt Indenture, cannot be modified or amended without the consent of the Holder
of each Outstanding Senior Debt Security of such series affected. Upon any such
waiver, such default shall cease to exist, and any Event of Default arising
therefrom shall be deemed to have been cured, for every purpose of the Senior
Debt Indenture; but no such waiver shall extend to any subsequent or other
default or impair any right consequent thereon. (Sections 513, 902 of the Senior
Debt Indenture)
 
     If a default occurs under the Senior Debt Indenture with respect to Senior
Debt Securities of any series, the Trustee shall give the Holders of Senior Debt
Securities of such series notice of such default as and to the
 
                                       15
<PAGE>   17
 
extent provided by the Trust Indenture Act; provided, however, that in the case
of any default or breach of certain covenants or warranties with respect to
Senior Debt Securities of such series, no such notice to Holders shall be given
until at least 30 days after the occurrence thereof (the term "default" for
purposes of these provisions being defined as any event which is, or after
notice or lapse of time or both would become, an Event of Default with respect
to the Senior Debt Securities of such series). (Section 602 of the Senior Debt
Indenture)
 
     In any case in which Senior Debt Securities are Outstanding that are
denominated in more than one currency and the Trustee is directed to make
ratable payments under the Senior Debt Indenture to Holders of such Senior Debt
Securities, unless otherwise provided with respect to any series of Senior Debt
Securities, the Trustee shall calculate the amount of such payments as follows:
(i) as of the day the Trustee collects an amount under the Senior Debt
Indenture, the Trustee shall, as to each Holder of a Senior Debt Security to
whom an amount is due and payable under the Senior Debt Indenture that is
denominated in a foreign currency, determine that amount in Dollars that would
be obtained for the amount owing such Holder, using the rate of exchange at
which in accordance with normal banking procedures the Trustee could purchase in
the City of New York Dollars with such amount owing; (ii) calculate the sum of
all Dollar amounts determined under (i) and add thereto any amounts due and
payable in Dollars; and (iii) using the individual amounts determined in (i) or
any individual amounts due and payable in Dollars, as the case may be, as a
numerator, and the sum calculated in (ii) as a denominator, calculate as to each
Holder of a Senior Debt Security to whom an amount is owed under the Senior Debt
Indenture the fraction of the amount collected under the Senior Debt Indenture
payable to such Holder. Any expenses incurred by the Trustee in actually
converting amounts owing Holders of Senior Debt Securities denominated in a
currency other than that in which any amount is collected under the Senior Debt
Indenture shall be likewise (in accordance with the foregoing) borne ratably by
all Holders of Senior Debt Securities to whom amounts are payable under the
Senior Debt Indenture. (Sections 506, 902 of the Senior Debt Indenture)
 
     To the fullest extent allowed under applicable law, if for the purpose of
obtaining judgment against the Company in any court it is necessary to convert
the sum due in respect of the principal of, or premium, if any, or interest on,
the Senior Debt Securities of any series (the "Required Currency") into a
currency in which a judgment will be rendered (the "Judgment Currency"), the
rate of exchange used shall be the rate at which in accordance with normal
banking procedures the Trustee could purchase in the City of New York the
Required Currency with the Judgment Currency on the Business Day in the City of
New York next preceding that on which final judgment is given. Neither the
Company nor the Trustee shall be liable for any shortfall nor shall either of
them benefit from any windfall in payments to Holders of Senior Debt Securities
under this provision of the Senior Debt Indenture caused by a change in exchange
rates between the time the amount of a judgment against the Company is
calculated as above and the time the Trustee converts the Judgment Currency into
the Required Currency to make payments under the foregoing provisions of the
Senior Debt Indenture to Holders of Senior Debt Securities, but payment of such
judgment shall discharge all amounts owed by the Company on the claim or claims
underlying such judgment. (Section 506 of the Senior Debt Indenture)
 
     The Company is required to furnish to the Trustee annually a statement as
to the compliance by the Company with all conditions and covenants under the
Senior Debt Indenture. (Section 1006)
 
     Limitation on Liens. Unless provided otherwise in the applicable Prospectus
Supplement, the provisions of this covenant shall apply to each series of Senior
Debt Securities issued under the Senior Debt Indenture:
 
     (a) The Company will not, and will not permit any of its Restricted
Subsidiaries to, create, incur, assume or suffer to exist, directly or
indirectly, any Indebtedness secured by a Security Interest upon any Principal
Property of the Company or of a Restricted Subsidiary, whether owned as of the
date of this Indenture or hereafter acquired, without making effective provision
(and the Company hereby covenants that in any such case it shall make or cause
to be made effective provision) whereby the Senior Debt Securities of that
series then outstanding and any other Indebtedness of the Company or any
Restricted Subsidiary then entitled thereto shall be secured by such Security
Interest equally and ratably with (or, in the case of the Senior Debt Securities
of that series and if the Company shall so determine, prior to) any and all
other Indebtedness of the
 
                                       16
<PAGE>   18
 
Company or any Restricted Subsidiary thereby secured for so long as any such
other Indebtedness of the Company or any Restricted Subsidiary shall be so
secured; provided, that nothing in the Senior Debt Indenture shall prevent,
restrict or apply to Indebtedness secured by:
 
     (1) (a) Any Security Interest upon property or assets which is created
prior to or contemporaneously with, or within 360 days after, (i) in the case of
the acquisition of such property or assets, the completion of such acquisition
and (ii) in the case of the construction, development or improvement of such
property or assets, the later to occur of the completion of such construction,
development or improvement or the commencement of operation or use of the
property or assets, which Security Interest secures or provides for the payment,
financing or refinancing, directly or indirectly, of all or any part of the
acquisition cost of such property or assets or the cost of construction,
development or improvement thereof; or (b) any Security Interest upon property
or assets existing at the time of the acquisition thereof, which Security
Interest secures obligations assumed by the Company or any Restricted
Subsidiary; or (c) any conditional sales agreement or other title retention
agreement with respect to any property or assets acquired by the Company or any
Restricted Subsidiary; or (d) any Security Interest existing on the property or
assets or shares of stock of a corporation or firm at the time such corporation
or firm is merged into or consolidated with the Company or any Restricted
Subsidiary or at the time of a sale, lease or other disposition of the property
or assets of such corporation or firm as an entirety or substantially as an
entirety to the Company or any Restricted Subsidiary or at the time such
corporation becomes a Restricted Subsidiary; or (e) any Security Interest
existing on the property, assets or shares of stock of any successor which shall
have become the Company in accordance with the provisions of the covenant
described in "-- Provisions Applicable Solely to Senior Debt Securities --
Consolidation, Merger and Sale of Assets"; provided, in each case, that any such
Security Interest described in the foregoing clauses (b), (c), (d) or (e) does
not attach to or affect property or assets owned by the Company or any
Restricted Subsidiary prior to the event referred to in such clauses; or
 
     (2) Mechanics', materialmen's, carriers' or other like liens arising in the
ordinary course of business (including construction of facilities) in respect of
obligations which are not due or which are being contested in good faith; or
 
     (3) Any Security Interest arising by reason of deposits with, or the giving
of any form of security to, any governmental agency or any body created or
approved by law or governmental regulation, which is required by law or
governmental regulation as a condition to the transaction of any business or the
exercise of any privilege, franchise or license (including, without limitation,
any Security Interest arising by reason of one or more letters of credit in
connection with any international waste management contract to be performed by
the Company or any of its Subsidiaries or their respective affiliates); or
 
     (4) Security Interests for taxes, assessments or governmental charges or
levies not yet delinquent or Security Interests for taxes, assessments or
governmental charges or levies already delinquent but the validity of which is
being contested in good faith; or
 
     (5) Security Interests (including judgment liens) arising in connection
with legal proceedings so long as such proceedings are being contested in good
faith and, in the case of judgment liens, execution thereon is stayed; or
 
     (6) Landlords' liens on fixtures located on premises leased by the Company
or any Restricted Subsidiary in the ordinary course of business; or
 
     (7) Any Security Interest in favor of any governmental authority in
connection with the financing of the cost of construction or acquisition of
property; or
 
     (8) Any Security Interest arising by reason of deposits to qualify the
Company or any Restricted Subsidiary to conduct business, to maintain
self-insurance, or to obtain the benefit of, or comply with, laws; or
 
     (9) Any Security Interest that secures any Indebtedness of a Restricted
Subsidiary owing to the Company or another Restricted Subsidiary or by the
Company to a Restricted Subsidiary; or
 
                                       17
<PAGE>   19
 
     (10) Any Security Interest incurred in connection with pollution control,
sewage or solid waste disposal, industrial revenue or similar financing; or
 
     (11) Any Security Interest created by any program providing for the
financing, sale or other disposition of trade or other receivables qualified as
current assets in accordance with United States generally accepted accounting
principles entered into by the Company or by any Restricted Subsidiary, provided
that such program is on terms comparable for similar transactions, or any
document executed by the Company or any Restricted Subsidiary in connection
therewith, and provided that such Security Interest is limited to the trade or
other receivables in respect of which such program is created or exists and the
proceeds thereof; or
 
     (12) Any extension, renewal or refunding (or successive extensions,
renewals or refundings) in whole or in part of any Indebtedness secured by any
Security Interest referred to in the foregoing clauses (1) through (11),
inclusive, provided that the Security Interest securing such Indebtedness shall
be limited to the property or assets which, immediately prior to such extension,
renewal or refunding, secured such Indebtedness and additions to such property
or assets.
 
     Notwithstanding the foregoing provisions, the Company or any of its
Restricted Subsidiaries may create, incur, assume or suffer to exist any
Indebtedness secured by a Security Interest without so securing the Senior Debt
Securities of that series if, at the time such Security Interest becomes a
Security Interest upon any Principal Property of the Company or such Restricted
Subsidiary and after giving effect thereto, the aggregate outstanding principal
amount of all Indebtedness of the Company and its Restricted Subsidiaries
secured by Security Interests permitted by this sentence (excluding Indebtedness
secured by a Security Interest existing as of the date of the Senior Debt
Indenture, but including the Attributable Debt in respect of Sale and Leaseback
Transactions, other than Sale and Leaseback Transactions which, if the
Attributable Debt in respect thereof had been Indebtedness secured by a Security
Interest, would have been permitted by clause (1)(a) above, other Sale and
Leaseback Transactions the proceeds of which have been applied or committed to
be applied in accordance with the covenant described in "-- Provisions
Applicable Solely to Senior Debt Securities -- Limitations on Sale and Leaseback
Transactions" and other than Sale and Leaseback Transactions between the Company
and any Restricted Subsidiary) does not exceed 15% of Consolidated Net Tangible
Assets. (Section 1008 of the Senior Debt Indenture)
 
     (b) If, upon any consolidation or merger of any Restricted Subsidiary with
or into any other corporation, or upon any consolidation or merger of any other
corporation with or into the Company or any Restricted Subsidiary or upon any
sale or conveyance of the Principal Property of any Restricted Subsidiary as an
entirety or substantially as an entirety to any other Person, or upon any
acquisition by the Company or any Restricted Subsidiary by purchase or otherwise
of all or any part of the Principal Property of any other Person, any Principal
Property theretofore owned by the Company or such Restricted Subsidiary would
thereupon become subject to any Security Interest not permitted by the terms of
the foregoing covenant, the Company, prior to such consolidation, merger, sale
or conveyance, or acquisition, will, or will cause such Restricted Subsidiary
to, secure payment of the principal of and interest, if any, on the Senior Debt
Securities of that series (equally and ratably with or prior to any other
Indebtedness of the Company or such Restricted Subsidiary then entitled thereto)
by a direct lien on all such Principal Property prior to all liens other than
any liens theretofore existing thereon by a supplemental indenture or otherwise.
 
     Limitations on Sale and Leaseback Transactions. Unless provided otherwise
in the applicable Prospectus Supplement, the provisions of this covenant shall
apply to each series of Senior Debt Securities issued under the Senior Debt
Indenture:
 
     The Company will not, and will not permit any Restricted Subsidiary to,
enter into any arrangement with any Person (other than with any Restricted
Subsidiary) providing for the leasing to the Company or any Restricted
Subsidiary of any Principal Property owned or hereafter acquired by the Company
or such Restricted Subsidiary (except for temporary leases for a term, including
any renewal thereof, of not more than three years and except for leases between
the Company and a Restricted Subsidiary or between Restricted Subsidiaries),
which Principal Property has been or is to be sold or transferred by the Company
or such Restricted Subsidiary to such person (a "Sale and Leaseback
Transaction") unless (a) the Company or such Restricted Subsidiary would be
entitled, pursuant to the covenant described in "-- Provisions Applicable
 
                                       18
<PAGE>   20
 
Solely to Senior Debt Securities -- Limitation on Liens," to incur Indebtedness
secured by a Security Interest on the property to be leased without equally and
ratably securing the Senior Debt Securities of that series, or (b) the Company
shall, and in any such case the Company covenants that it will, within 180 days
after the effective date of any such arrangement, apply an amount equal to the
fair value (as determined by the Board of Directors) of such property to the
redemption of Senior Debt Securities that, by their terms, are subject to
redemption, or to the purchase and retirement of Senior Debt Securities, or to
the payment or other retirement of funded debt for money borrowed, incurred or
assumed by the Company which ranks senior to or pari passu with the Senior Debt
Securities of that series or of funded debt for money borrowed, incurred or
assumed by any Restricted Subsidiary (other than, in either case, funded debt
owed by the Company or any Restricted Subsidiary), or (c) the Company shall
within 180 days after entering into the Sale and Leaseback Transaction, enter
into a bona fide commitment or commitments to expend for the acquisition or
capital improvement of a Principal Property an amount at least equal to the fair
value (as determined by the Board of Directors) of such property. (Section 1009
of the Senior Debt Indenture)
 
     Notwithstanding the foregoing, the Company may, and may permit any
Restricted Subsidiary to, effect any Sale and Leaseback Transaction that is not
acceptable pursuant to clauses (a) through (c), inclusive, of the foregoing
covenant, provided that the Attributable Debt associated with such Sale and
Leaseback Transaction, together with the aggregate principal amount of
outstanding debt secured by Security Interests upon Principal Property not
acceptable pursuant to clauses (1) through (12) of the covenant described in
"-- Provisions Applicable Solely to Senior Debt Securities -- Limitation on
Liens," inclusive, do not exceed 15% of Consolidated Net Tangible Assets.
(Section 1009 of the Senior Debt Indenture)
 
PROVISIONS APPLICABLE SOLELY TO SUBORDINATED DEBT SECURITIES
 
     Consolidation, Merger, Sale. The Subordinated Debt Indenture provides that
the Company may not consolidate with or merge into any other Person or convey,
transfer or lease its properties and assets substantially as an entirety to any
Person, unless (1) the Person formed by such consolidation or into which the
Company is merged or the Person which acquires by conveyance or transfer, or
which leases, the properties and assets of the Company substantially as an
entirety shall be a corporation, partnership or trust, organized and validly
existing under the laws of the United States of America, any State thereof or
the District of Columbia and shall expressly assume, by a supplemental
indenture, executed and delivered to the Trustee, in form satisfactory to the
Trustee, the due and punctual payment of the principal of and any premium and
interest (including all additional amounts, if any, payable pursuant to the
Subordinated Debt Indenture) on all the Subordinated Debt Securities and the
performance or observance of every other covenant of the Subordinated Debt
Indenture on the part of the Company to be performed or observed; and (2)
immediately after giving effect to such transaction and treating any
indebtedness which becomes an obligation of the Company or a Subsidiary as a
result of such transaction as having been incurred by the Company or such
Subsidiary at the time of such transaction, no Event of Default, and no event
which, after notice or lapse of time or both, would become an Event of Default,
shall have happened and be continuing. Upon any consolidation of the Company
with, or merger of the Company into, any other Person or any conveyance,
transfer or lease of the properties and assets of the Company substantially as
an entirety, the successor Person formed by such consolidation or into which the
Company is merged or to which such conveyance, transfer or lease is made shall
succeed to, and be substituted for, and may exercise every right and power of,
the Company under the Subordinated Debt Indenture with the same effect as if
such successor Person had been named as the Company herein, and thereafter,
except in the case of a lease, the predecessor Person shall be relieved of all
obligations and covenants under the Subordinated Debt Indenture and the
Subordinated Debt Securities and coupons and may liquidate and dissolve.
(Sections 801, 802 of the Subordinated Debt Indenture)
 
     Event of Default. Unless otherwise specified in the applicable Prospectus
Supplement, an Event of Default is defined under the Subordinated Debt Indenture
with respect to the Subordinated Debt Securities of any series issued under such
Subordinated Debt Indenture as being one or more of the following events:
 
          (1) default in the payment of any interest upon any Subordinated Debt
     Security of that series when it becomes due and payable, and continuance of
     such default for a period of 30 days; or
 
                                       19
<PAGE>   21
 
          (2) default in the payment of the principal of (or premium, if any,
     on) any Subordinated Debt Security of that series as and when the same
     becomes due and payable, whether at Stated Maturity or by declaration of
     acceleration, call for redemption or otherwise; or
 
          (3) default in the deposit of any sinking fund payment, when and as
     due by the terms of a Subordinated Debt Security of that series; or
 
          (4) default in the performance, or breach, of any other covenant or
     warranty of the Company in the Subordinated Debt Indenture (other than a
     covenant or warranty a default in whose performance or whose breach is
     elsewhere in Section 501 of the Subordinated Debt Indenture specifically
     dealt with or which has expressly been included in the Subordinated Debt
     Indenture solely for the benefit of a series of Subordinated Debt
     Securities other than that series), 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 Company by the Trustee or to the Company and the
     Trustee by the Holders of at least 25% in principal amount of the
     Outstanding Subordinated Debt Securities of that series a written notice
     specifying such default or breach and requiring it to be remedied and
     stating that such notice is a "Notice of Default" under the Subordinated
     Debt Indenture; or
 
          (5) the entry by a court having jurisdiction in the premises of (A) a
     decree or order for relief in respect of the Company in an involuntary case
     or proceeding under any applicable Federal or State bankruptcy, insolvency,
     reorganization or other similar law or (B) a decree or order adjudging the
     Company a bankrupt or insolvent, or approving as properly filed a petition
     seeking reorganization, arrangement, adjustment or composition of or in
     respect of the Company under any applicable Federal or State law, or
     appointing a custodian, receiver, liquidator, assignee, trustee,
     sequestrator or other similar official of the Company or of any substantial
     part of its property, or ordering the winding up or liquidation of its
     affairs, and the continuance of any such decree or order for relief or any
     such other decree or order unstayed and in effect for a period of 90
     consecutive days; or
 
          (6) the commencement by the Company of a voluntary case or proceeding
     under any applicable Federal or State bankruptcy, insolvency,
     reorganization or other similar law or of any other case or proceeding to
     be adjudicated a bankrupt or insolvent, or the consent by it to the entry
     of a decree or order for relief in respect of the Company in an involuntary
     case or proceeding under any applicable Federal or State bankruptcy,
     insolvency, reorganization or other similar law or the commencement of any
     bankruptcy or insolvency case or proceeding against it, or the filing by it
     of a petition or answer or consent seeking reorganization or relief under
     any applicable Federal or State law, or the consent by it to the filing of
     such petition or to the appointment of or taking possession by a custodian,
     receiver, liquidator, assignee, trustee, sequestrator or similar official
     of the Company or of any substantial part of its property, or the making by
     it of an assignment for the benefit of creditors, or the admission by it in
     writing of its inability to pay its debts generally as they become due, or
     the taking of corporate action by the Company in furtherance of any such
     action; or
 
          (7) any other Event of Default provided with respect to Subordinated
     Debt Securities of that series. (Section 501 of the Subordinated Debt
     Indenture)
 
     If an Event of Default with respect to Subordinated Debt Securities of any
series at the time Outstanding occurs and is continuing, then in every such
case, the Trustee or the Holders of not less than 25% in principal amount of the
Outstanding Subordinated Debt Securities of that series may declare the
principal amount (or, if any of the Subordinated Debt Securities of that series
are Original Issue Discount Securities, such portion of the principal amount of
such Subordinated Debt Securities as may be specified in the terms thereof) of
all of the Subordinated Debt Securities of that series to be due and payable
immediately, by a notice in writing to the Company (and to the Trustee if given
by Holders), and upon any such declaration such principal amount (or specified
amount) shall become immediately due and payable. At any time after such a
declaration of acceleration with respect to the Subordinated Debt Securities of
any series has been made and before a judgment or decree for payment of the
money due has been obtained by the Trustee, the Holders of a majority in
principal amount of the Outstanding Subordinated Debt Securities of that series,
by written notice to the Company and the Trustee, may rescind and annul such
declaration and its consequences if: (1) the Company
 
                                       20
<PAGE>   22
 
has paid or deposited with the Trustee a sum sufficient to pay (A) all overdue
interest on all Subordinated Debt Securities of that series, (B) the principal
of (and premium, if any, on) any Subordinated Debt Securities of that series
which has become due otherwise than by such declaration of acceleration and any
interest thereon at the rate or rates prescribed therefor in such Subordinated
Debt Securities, (C) to the extent that payment of such interest is lawful,
interest upon overdue interest at the rate or rates prescribed therefor in such
Subordinated Debt Securities, and (D) all sums paid or advanced by the Trustee
hereunder and the reasonable compensation, expenses, disbursements and advances
of the Trustee, its agents and counsel; and (2) all Events of Default with
respect to Subordinated Debt Securities of that series, other than the
non-payment of the principal of Subordinated Debt Securities of that series
which has become due solely by such declaration of acceleration, have been cured
or waived as provided in the Subordinated Debt Indenture. No such rescission
shall affect any subsequent default or impair any right consequent thereon.
(Section 502 of the Subordinated Debt Indenture). If the Trustee or any Holder
of a Subordinated Debt Security or coupon has instituted any proceeding to
enforce any right or remedy under the Subordinated Debt Indenture and such
proceeding has been discontinued or abandoned for any reason, or has been
determined adversely to the Trustee or to such Holder, then and in every such
case, subject to any determination in such proceeding, the Company, the Trustee
and the Holders of Subordinated Debt Securities and coupons shall be restored
severally and respectively to their former positions under the Subordinated Debt
Indenture and the Subordinated Debt Securities and thereafter all rights and
remedies of the Trustee and the Holders shall continue as though no such
proceeding had been instituted. (Section 509 of the Subordinated Debt Indenture)
 
     The Subordinated Debt Indenture provides that, subject to the duty of the
Trustee during default to act with the required standard of care, the Trustee is
under no obligation to exercise any of its rights or powers under such Indenture
at the request or direction of any of the Holders, unless such Holders shall
have offered to the Trustee reasonable indemnity. (Sections 601, 603 of the
Subordinated Debt Indenture) No Holder of any Subordinated Debt Security of any
series or any related coupons shall have any right to institute any proceeding,
judicial or otherwise, with respect to the Subordinated Debt Indenture, or for
the appointment of a receiver or trustee, or for any other remedy thereunder,
unless (1) such Holder has previously given written notice to the Trustee of a
continuing Event of Default with respect to the Subordinated Debt Securities of
that series; (2) the Holders of not less than 25% in principal amount of the
Outstanding Subordinated Debt Securities of that series shall have made written
request to the Trustee to institute proceedings in respect of such Event of
Default in its own name as Trustee under the Subordinated Debt Indenture; (3)
such Holder or Holders have offered to the Trustee reasonable indemnity against
the costs, expenses and liabilities to be incurred in compliance with such
request; (4) the Trustee for 60 days after its receipt of such notice, request
and offer of indemnity has failed to institute any such proceeding; and (5) no
direction inconsistent with such written request has been given to the Trustee
during such 60-day period by the Holders of a majority in principal amount of
the Outstanding Subordinated Debt Securities of that series. (Section 507 of the
Subordinated Debt Indenture) Notwithstanding any other provisions in the
Subordinated Debt Indenture, but subject to the subordination provisions of the
Subordinated Debt Indenture, the right of any Holder of any Subordinated Debt
Security or coupon to receive payment of the principal of and any premium and
any interest on such Subordinated Debt Security or payment of such coupon on the
Stated Maturity or Maturities expressed in such Subordinated Debt Security or
coupon and, if applicable, to convert such Subordinated Debt Security as
provided in the conversion provisions of the Subordinated Debt Indenture and to
institute suit for the enforcement of any such payment or conversion right shall
not be impaired without the consent of such Holder. (Sections 508, 902 of the
Subordinated Debt Indenture)
 
     The Holders of a majority in principal amount of the Outstanding
Subordinated Debt Securities of any series shall have the right to direct the
time, method and place of conducting any proceeding for any remedy available to
the Trustee, or exercising any trust or power conferred on the Trustee, with
respect to the Subordinated Debt Securities of such series, provided that (1)
such direction shall not be in conflict with any rule of law or with the
Subordinated Debt Indenture; (2) the Trustee may take any other action deemed
proper by the Trustee which is not inconsistent with such direction; and (3) the
Trustee shall not be obligated to take any action unduly prejudicial to Holders
not joining in such direction or involving the Trustee in personal liability.
(Section 512 of the Subordinated Debt Indenture). The Holders of a majority in
principal
 
                                       21
<PAGE>   23
 
amount of the Outstanding Subordinated Debt Securities of any series may on
behalf of the Holders of all the Subordinated Debt Securities of such series
waive any past default under the Subordinated Debt Indenture with respect to the
Subordinated Debt Securities of such series and its consequences, except a
default in the payment of the principal of or any premium or interest on any
Subordinated Debt Security of such series or in respect of a covenant or
provision of the Subordinated Debt Indenture which, pursuant to the Subordinated
Debt Indenture, cannot be modified or amended without the consent of the Holder
of each Outstanding Subordinated Debt Security of such series affected. Upon any
such waiver, such default shall cease to exist, and any Event of Default arising
therefrom shall be deemed to have been cured, for every purpose of the
Subordinated Debt Indenture; but no such waiver shall extend to any subsequent
or other default or impair any right consequent thereon. (Sections 902, 513 of
the Subordinated Debt Indenture)
 
     If a default occurs under the Subordinated Debt Indenture with respect to
Subordinated Debt Securities of any series, the Trustee shall give the Holders
of Subordinated Debt Securities of such series notice of such default as and to
the extent provided by the Trust Indenture Act; provided, however, that in the
case of any default or breach of certain covenants or warranties with respect to
Subordinated Debt Securities of such series, no such notice to Holders shall be
given until at least 30 days after the occurrence thereof (the term "default"
for purposes of these provisions being defined as any event which is, or after
notice or lapse of time or both would become, an Event of Default with respect
to the Subordinated Debt Securities of such series). (Section 602 of the
Subordinated Debt Indenture)
 
     In any case in which Subordinated Debt Securities are Outstanding that are
denominated in more than one currency and the Trustee is directed to make
ratable payments under the Subordinated Debt Indenture to Holders of such
Subordinated Debt Securities, unless otherwise provided with respect to any
series of Subordinated Debt Securities, the Trustee shall calculate the amount
of such payments as follows: (i) as of the day the Trustee collects an amount
under the Subordinated Debt Indenture, the Trustee shall, as to each Holder of a
Subordinated Debt Security to whom an amount is due and payable under the
Subordinated Debt Indenture that is denominated in a foreign currency, determine
that amount in Dollars that would be obtained for the amount owing such Holder,
using the rate of exchange at which in accordance with normal banking procedures
the Trustee could purchase in the City of New York Dollars with such amount
owing; (ii) calculate the sum of all Dollar amounts determined under (i) and add
thereto any amounts due and payable in Dollars; and (iii) using the individual
amounts determined in (i) or any individual amounts due and payable in Dollars,
as the case may be, as a numerator, and the sum calculated in (ii) as a
denominator, calculate as to each Holder of a Subordinated Debt Security to whom
an amount is owed under the Subordinated Debt Indenture the fraction of the
amount collected under the Subordinated Debt Indenture payable to such Holder.
Any expenses incurred by the Trustee in actually converting amounts owing
Holders of Subordinated Debt Securities denominated in a currency other than
that in which any amount is collected under the Subordinated Debt Indenture
shall be likewise (in accordance with the foregoing) borne ratably by all
Holders of Subordinated Debt Securities to whom amounts are payable under the
Subordinated Debt Indenture. (Section 506 of the Subordinated Debt Indenture)
 
     To the fullest extent allowed under applicable law, if for the purpose of
obtaining judgment against the Company in any court it is necessary to convert
the sum due in respect of the principal of, or premium, if any, or interest on,
the Subordinated Debt Securities of any series (the "Required Currency") into a
currency in which a judgment will be rendered (the "Judgment Currency"), the
rate of exchange used shall be the rate at which in accordance with normal
banking procedures the Trustee could purchase in the City of New York the
Required Currency with the Judgment Currency on the Business Day in the City of
New York next preceding that on which final judgment is given. Neither the
Company nor the Trustee shall be liable for any shortfall nor shall it benefit
from any windfall in payments to Holders of Subordinated Debt Securities under
the Subordinated Debt Indenture caused by a change in exchange rates between the
time the amount of a judgment against the Company is calculated as above and the
time the Trustee converts the Judgment Currency into the Required Currency to
make payments under the foregoing provisions of the Subordinated Debt Indenture
to Holders of Subordinated Debt Securities, but payment of such judgment shall
discharge all amounts owed by the Company on the claim or claims underlying such
judgment. (Section 506 of the Subordinated Debt Indenture)
 
                                       22
<PAGE>   24
 
     The Company is required to furnish to the Trustee annually a statement as
to the compliance by the Company with all conditions and covenants under the
Subordinated Debt Indenture. (Section 1007 of the Subordinated Debt Indenture)
 
     Subordination. The Subordinated Debt Securities will be subordinate and
junior in right of payment, to the extent set forth in the Subordinated Debt
Indenture, to all Senior Indebtedness (as defined below) of the Company. If the
Company should default in the payment of any principal of or premium or interest
on any Senior Indebtedness when the same become due and payable, whether at
maturity or a date fixed for prepayment or by declaration of acceleration or
otherwise, then, upon written notice of such default to the Company by the
holders of such Senior Indebtedness or any trustee therefor and subject to
certain rights of the Company to dispute such default and subject to proper
notification of the Trustee, unless and until such default has been cured or
waived or ceases to exist, no direct or indirect payment (in cash, property,
securities, by set-off or otherwise) will be made or agreed to be made for
principal or premium, if any, or interest, if any, on the Subordinated Debt
Securities, or in respect of any redemption, retirement, purchase or other
acquisition of the Subordinated Debt Securities other than those made in capital
stock of the Company (or cash in lieu of fractional shares thereof) pursuant to
any conversion right of the Subordinated Debt Securities or otherwise made in
capital stock of the Company. (Sections 1601, 1604 and 1605 of the Subordinated
Debt Indenture)
 
     "Senior Indebtedness" is defined in Section 101 of the Subordinated Debt
Indenture as Indebtedness (as defined below) of the Company outstanding at any
time except (a) any Indebtedness as to which, by the terms of the instrument
creating or evidencing the same, it is provided that such Indebtedness is not
senior in right of payment to the Subordinated Debt Securities, (b) the
Subordinated Debt Securities, (c) any Indebtedness of the Company to a
wholly-owned Subsidiary of the Company, (d) interest accruing after the filing
of a petition initiating certain bankruptcy or insolvency proceedings unless
such interest is an allowed claim enforceable against the Company in a
proceeding under federal or state bankruptcy laws, (e) obligations under
performance guarantees, support agreements and other agreements in the nature
thereof relating to the obligations of any Subsidiary of the Company, and (f)
trade accounts payable. "Indebtedness" is defined in Section 101 of the
Subordinated Debt Indenture as, with respect to any Person, (a) (i) the
principal of and interest and premium, if any, on indebtedness for money
borrowed of such Person evidenced by bonds, notes, debentures or similar
obligations, including any guaranty by such Person of any indebtedness for money
borrowed of any other Person, whether any such indebtedness or guaranty is
outstanding on the date of the Subordinated Debt Indenture or is thereafter
created, assumed or incurred, (ii) the principal of and premium and interest, if
any, on indebtedness for money borrowed, incurred, assumed or guaranteed by such
Person in connection with the acquisition by it or any of its subsidiaries of
any other businesses properties or other assets and (iii) lease obligations
which such Person capitalizes in accordance with Statement of Financial
Accounting Standards No. 13 promulgated by the Financial Accounting Standards
Board or such other generally accepted accounting principles as may be from time
to time in effect, (b) any other indebtedness of such Person, including any
indebtedness representing the balance deferred and unpaid of the purchase price
of any property or interest therein, including any such balance that constitutes
a trade account payable, and any guaranty, endorsement or other contingent
obligation of such Person in respect of any indebtedness of another, which is
outstanding on the date of the Subordinated Debt Indenture or is thereafter
created, assumed or incurred by such Person and (c) any amendments,
modifications, refundings, renewals or extensions of any indebtedness or
obligation described as Indebtedness in clause (a) or (b) above.
 
     If (i) without the consent of the Company a court having jurisdiction shall
enter (A) an order for relief with respect to the Company under the United
States federal bankruptcy laws, (B) a judgment, order or decree adjudging the
Company a bankrupt or insolvent, or (C) an order for relief for reorganization,
arrangement, adjustment or composition of or in respect of the Company under the
United States federal bankruptcy laws or state insolvency laws or (ii) the
Company shall institute proceedings for the entry of an order for relief with
respect to the Company under the United States federal bankruptcy laws or for an
adjudication of insolvency, or shall consent to the institution of bankruptcy or
insolvency proceedings against it, or shall file a petition seeking, or seek or
consent to reorganization, arrangement, composition or similar relief under the
United States federal bankruptcy laws or any applicable state law, or shall
consent to the filing
 
                                       23
<PAGE>   25
 
of such petition or to the appointment of a receiver, custodian, liquidator,
assignee, trustee, sequestrator or similar official in respect of the Company or
of substantially all of its property, or the Company shall make a general
assignment for the benefit of creditors as recognized under the United States
federal bankruptcy laws, then all Senior Indebtedness (including any interest
thereon accruing after the commencement of any such proceedings) will first be
paid in full before any payment or distribution, whether in cash, securities or
other property, may be made to any Holder of Subordinated Debt Securities on
account thereof. In such event, any payment or distribution, whether in cash,
securities or other property (other than securities of the Company or any other
corporation provided for by a plan of reorganization or readjustment the payment
of which is subordinate, at least to the extent provided in the subordination
provisions with respect to the Subordinated Debt Securities, to the payment of
all Senior Indebtedness then outstanding and to any securities issued in respect
thereof under any such plan of reorganization or readjustment), which would
otherwise (but for the subordination provisions) be payable or deliverable in
respect of Subordinated Debt Securities of any series will be paid or delivered
directly to the holders of Senior Indebtedness in accordance with the priorities
then existing among such holders until all Senior Indebtedness (including any
interest thereon accruing after the commencement of any such proceedings) has
been paid in full. If any payment or distribution of any character, whether in
cash, securities or other property (other than securities of the Company or any
other corporation provided for by a plan of reorganization or readjustment the
payment of which is subordinate, at least to the extent provided in the
subordination provisions with respect to the Subordinated Debt Securities, to
the payment of all Senior Indebtedness then outstanding and to any securities
issued in respect thereof under any such plan of reorganization or
readjustment), shall be received by the Trustee or any holder of any
Subordinated Debt Securities in contravention of any of the terms of the
Subordinated Debt Indenture, such payment or distribution will be received in
trust for the benefit of, and will be paid over or delivered and transferred to,
the holders of the Senior Indebtedness then outstanding in accordance with the
priorities then existing among such holders for application to the payment of
all Senior Indebtedness remaining unpaid, to the extent necessary to pay all
such Senior Indebtedness in full. In the event of the failure of the Trustee or
any holder to endorse or assign any such payment, distribution or security, each
Holder of Senior Indebtedness is irrevocably authorized to endorse or assign the
same. In the event of any such proceeding, after payment in full of all sums
owing with respect to Senior Indebtedness, the holders of Subordinated Debt
Securities, together with the holders of any other obligations of the Company
ranking on a parity with the Subordinated Debt Securities, will be entitled to
be repaid from the remaining assets of the Company the amounts at that time due
and owing on account of unpaid principal of and any premium and interest on the
Subordinated Debt Securities and such other obligations before any payment or
other distribution, whether in cash, property or otherwise, shall be made on
account of any capital stock or obligations of the Company ranking junior to the
Subordinated Debt Securities and such other obligations. (Section 1601 of the
Subordinated Debt Indenture)
 
     The Subordinated Debt Indenture provides that Senior Indebtedness shall not
be deemed to have been paid in full unless the holders thereof shall have
received cash, securities or other property equal to the amount of such Senior
Indebtedness then outstanding. Upon the payment in full of all Senior
Indebtedness, the holders of Subordinated Debt Securities of each series shall
be subrogated to all rights of any holders of Senior Indebtedness to receive any
further payments or distributions applicable to such Senior Indebtedness until
the indebtedness evidenced by the Subordinated Debt Securities of such series
shall have been paid in full, and such payments or distributions received by
such Holders, by reason of such subrogation, of cash, securities or other
property that otherwise would be paid or distributed to the holders of Senior
Indebtedness, shall, as between the Company and its creditors other than the
holders of such Senior Indebtedness, on the one hand, and such Holders, on the
other hand, be deemed to be a payment by the Company on account of such Senior
Indebtedness, and not on account of the Subordinated Debt Securities of such
series. (Section 1601 of the Subordinated Debt Indenture)
 
     The Prospectus Supplement respecting any series of Subordinated Debt
Securities will set forth any subordination provisions applicable to such series
in addition to or different from those described above.
 
     By reason of such subordination, in the event of a liquidation, bankruptcy,
reorganization, insolvency, receivership or similar proceeding involving the
Company or an assignment for the benefit of creditors of the Company or any of
its Subsidiaries or a marshalling of assets or liabilities of the Company and
its Subsidiaries,
 
                                       24
<PAGE>   26
 
holders of Senior Indebtedness and holders of other obligations of the Company
that are not subordinated to Senior Indebtedness may receive more, ratably, than
holders of the Subordinated Debt Securities. Such subordination will not prevent
the occurrence of any Default or Event of Default or limit the rights of the
Trustee or any Holder, subject to the other provisions of the Subordinated Debt
Indenture, to pursue any other rights or remedies with respect to the
Subordinated Debt Securities.
 
     Conversion. The Subordinated Debt Indenture may provide for a right of
conversion of Subordinated Debt Securities into Common Stock (or cash in lieu
thereof). (Sections 301 and 1501 of the Subordinated Debt Indenture). The
following provisions will apply to Debt Securities that are convertible
Subordinated Debt Securities unless otherwise provided in the applicable
Prospectus Supplement for such Debt Securities.
 
     The holder of any convertible Subordinated Debt Securities will have the
right exercisable at any time prior to maturity, unless previously redeemed or
otherwise purchased by the Company, to convert such Subordinated Debt Securities
into shares of Common Stock at the conversion price or conversion rate set forth
in the applicable Prospectus Supplement, subject to adjustment. (Section 1502 of
the Subordinated Debt Indenture) The holder of convertible Subordinated Debt
Securities may convert any portion thereof which is $1,000 in principal amount
or any integral multiple thereof. (Section 1502 of the Subordinated Debt
Indenture)
 
     In certain events, the conversion price or conversion rate will be subject
to adjustment as set forth in the Subordinated Debt Indenture. Such events
include the issuance of shares of Common Stock of the Company as a dividend or
distribution on the Common Stock; subdivisions, combinations and
reclassifications of the Common Stock; the issuance to all holders of Common
Stock of rights or warrants entitling the holders thereof (for a period not
exceeding 45 days) to subscribe for or purchase shares of Common Stock at a
price per share less than the then current market price per share of Common
Stock (as determined pursuant to the Subordinated Debt Indenture); and the
distribution to substantially all holders of Common Stock of evidences of
indebtedness, equity securities (including equity interests in the Company's
Subsidiaries) other than Common Stock, or other assets (excluding cash dividends
paid from surplus) or rights or warrants to subscribe for securities (other than
those referred to above). No adjustment of the conversion price or conversion
rate will be required unless an adjustment would require a cumulative increase
or decrease of at least 1% in such price or rate. (Section 1504 of the
Subordinated Debt Indenture) The Company has been advised by its counsel,
Liddell, Sapp, Zivley, Hill & LaBoon, L.L.P., that certain adjustments in the
conversion price or conversion rate in accordance with the foregoing provisions
may result in constructive distributions to either holders of the Subordinated
Debt Securities or holders of Common Stock which would be taxable pursuant to
Treasury Regulations issued under Section 305 of the Internal Revenue Code of
1986, as amended. The amount of any such taxable constructive distribution would
be the fair market value of the Common Stock which is treated as having been
constructively received, such value being determined as of the time the
adjustment resulting in the constructive distribution is made.
 
     Fractional shares of Common Stock will not be issued upon conversion, but,
in lieu thereof, the Company will pay a cash adjustment based on the then
current market price for the Common Stock. (Section 1503 of the Subordinated
Debt Indenture) Upon conversion, no adjustments will be made for accrued
interest or dividends, and therefore convertible Subordinated Debt Securities
surrendered for conversion between an Interest Payment Date and on or prior to
the record date pertaining to the subsequent Interest Payment Date will not be
considered Outstanding and no interest will be paid on the related Interest
Payment Date. Convertible Subordinated Debt Securities (except convertible
Subordinated Debt Securities called for redemption on a redemption date during
such period) surrendered for conversion during the period between the close of
business on any record date for an Interest Payment Date for such convertible
Subordinated Debt Security and the opening of business on the related Interest
Payment Date shall be considered Outstanding for purposes of payment of
interest, and, therefore, must be accompanied by payment of an amount equal to
the interest payable thereon on such Interest Payment Date. (Sections 1504 and
1502 of the Subordinated Debt Indenture)
 
     In the case of any consolidation or merger of the Company (with certain
exceptions) or any conveyance, transfer or lease of the properties and assets of
the Company substantially as an entirety to any Person, each
 
                                       25
<PAGE>   27
 
holder of convertible Subordinated Debt Securities, after the consolidation,
merger, conveyance, transfer or lease, will have the right to convert such
convertible Subordinated Debt Securities only into the kind and amount of
securities, cash and other property which the holder would have been entitled to
receive upon or in connection with such consolidation, merger, conveyance,
transfer or lease, if the holder had held the Common Stock issuable upon
conversion of such convertible Subordinated Debt Securities immediately prior to
such consolidation, merger, conveyance, transfer or lease. (Section 1505 of the
Subordinated Debt Indenture)
 
                          DESCRIPTION OF CAPITAL STOCK
 
GENERAL
 
     The Company is currently authorized to issue 300,000,000 shares of its
Common Stock, par value $.01 per share, of which 161,270,883 shares were
outstanding on June 27, 1997 and 10,000,000 shares of Preferred Stock, par value
$.01 per share (the "Preferred Stock"), none of which were outstanding on such
date.
 
COMMON STOCK
 
     Each holder of Common Stock is entitled to one vote per share held of
record on each matter submitted to stockholders. Cumulative voting for the
election of directors is not permitted, and the holders of a majority of shares
voting for the election of directors can elect all members of the Board of
Directors.
 
     Subject to the rights of any holders of Preferred Stock, holders of record
of shares of Common Stock are entitled to receive ratably dividends when and if
declared by the Board of Directors out of funds legally available therefor. In
the event of a voluntary or involuntary winding up or dissolution, liquidation
or partial liquidation of the Company, holders of Common Stock are entitled to
participate ratably in any distribution of the assets of the Company, subject to
any prior rights of holders of any outstanding Preferred Stock.
 
     Holders of Common Stock have no conversion, redemption or preemptive
rights. All outstanding shares of Common Stock are, and the Common Stock to be
issued hereunder will be, validly issued, fully paid and nonassessable.
 
PREFERRED STOCK
 
     The Board of Directors is authorized, without further approval of the
stockholders, to issue the Preferred Stock in series and with respect to each
series, to fix its designations, relative rights (including voting, dividend,
conversion, sinking fund and redemption rights), preferences (including with
respect to dividends and upon liquidation), privileges and limitations. The
Board of Directors, without stockholder approval, may issue Preferred Stock with
voting and conversion rights, both of which could adversely affect the voting
power of the holders of Common Stock, and dividend or liquidation preferences
that would restrict Common Stock dividends or adversely affect the assets
available for distribution to holders of shares of Common Stock upon the
Company's dissolution.
 
AUTHORIZED BUT UNISSUED SHARES
 
     Authorized but unissued shares of Common Stock or Preferred Stock can be
reserved for issuance by the Board of Directors from time to time without
further stockholder action for proper corporate purposes, including stock
dividends or stock splits, raising equity capital and structuring future
corporate transactions, including acquisitions.
 
TRANSFER AGENT AND REGISTRAR
 
     The transfer agent and registrar for the Common Stock is Boston EquiServe,
Boston, Massachusetts.
 
                                       26
<PAGE>   28
 
DELAWARE ANTI-TAKEOVER LAW
 
     Section 203 of the DGCL ("Section 203") generally provides that a person
who, together with affiliates and associates owns, or within three years did
own, at least 15% but less than 85% of the outstanding voting stock of a
corporation subject to the statute (an "Interested Stockholder") may not engage
in certain business combinations with the corporation for a period of three
years after the date on which the person became an Interested Stockholder unless
(i) prior to such date, the corporation's board of directors approved either the
business combination or the transaction in which the stockholder became an
Interested Stockholder or (ii) subsequent to such date, the business combination
is approved by the corporation's board of directors and authorized at a
stockholders' meeting by a vote of at least two-thirds of the corporation's
outstanding voting stock not owned by the Interested Stockholder. Section 203
defines the term "business combination" to encompass a wide variety of
transactions with or caused by an Interested Stockholder, including mergers,
asset sales, and other transactions in which the Interested Stockholder receives
or could receive a benefit on other than a pro rata basis with other
stockholders.
 
     The provisions of Section 203, combined with the Board of Directors'
authority to issue Preferred Stock without further stockholder action, could
delay or frustrate a change in control of the Company. The provisions also could
discourage, impede or prevent a merger, tender offer or proxy contest, even if
such event would be favorable to the interests of stockholders. The Company's
stockholders, by adopting an amendment to the Restated Certificate of
Incorporation, may elect not to be governed by Section 203 which election would
be effective 12 months after such adoption. Neither the Company's Restated
Certificate of Incorporation nor its Bylaws exclude the Company from the
restrictions imposed by Section 203.
 
                              PLAN OF DISTRIBUTION
GENERAL
 
     The Company may sell Securities to or through underwriters or dealers, and
also may sell Securities directly to other purchasers or through agents.
 
     The distribution of the Securities may be effected from time to time in one
or more transactions at a fixed price or prices, which may be changed, or at
market prices prevailing at the time of sale, at prices related to such
prevailing market prices or at negotiated prices.
 
     In connection with the sale of Securities, underwriters may receive
compensation from the Company, or purchasers of Securities for whom they may act
as agents in the form of discounts, concessions or commissions. Underwriters,
dealers and agents that participate in the distribution of Securities may be
deemed to be underwriters, and any discounts or commissions received by them
from the Company or the purchasers of Securities, as the case may be, and any
profit on the resale of Securities by them may be deemed to be underwriting
discounts and commissions under the Securities Act. Any such person who may be
deemed to be an underwriter will be identified, and any such compensation
received from the Company will be described, in the applicable Prospectus
Supplement.
 
     Debt Securities, when first issued, will have no established trading
market. Any underwriters or agents to or through whom Debt Securities are sold
by the Company for public offering and sale may make a market in such Debt
Securities, but such underwriters or agents will not be obligated to do so and
may discontinue any market making at any time without notice. No assurance can
be given as to the liquidity of the trading market for any Debt Securities.
 
     Under agreements which may be entered into by the Company, underwriters,
dealers and agents who participate in the distribution of Securities may be
entitled to indemnification by the Company against or contribution toward
certain liabilities, including liabilities under the Securities Act.
 
DELAYED DELIVERY ARRANGEMENT
 
     If so indicated in the applicable Prospectus Supplement, the Company will
authorize underwriters or other persons acting as the Company's agents to
solicit offers by certain institutions to purchase Debt
 
                                       27
<PAGE>   29
 
Securities from the Company pursuant to contracts providing for payment and
delivery on a future date. Institutions with which such contracts may be made
include commercial and savings banks, insurance companies, pension funds,
investment companies, educational and charitable institutions and others, but in
all cases will be subject to the approval of the Company. The obligations of any
purchaser under any such contract will be subject to the condition that the
purchase of the Debt Securities shall not at the time of delivery be prohibited
under the laws of any jurisdiction to which such purchaser is subject. The
underwriters and such agents will not have any responsibility in respect of the
validity or performance of such contracts.
 
                             VALIDITY OF SECURITIES
 
     The validity of the Offered Securities, as well as certain tax matters in
connection therewith, will be passed upon for the Company by Liddell, Sapp,
Zivley, Hill & LaBoon, L.L.P., Houston, Texas and certain legal matters will be
passed upon for any agents, dealers or underwriters by McDermott, Will & Emery,
Chicago, Illinois.
 
                                    EXPERTS
 
     The consolidated balance sheets of USA Waste as of December 31, 1996 and
1995 and the consolidated statements of operations, stockholders' equity, and
cash flows for each of the three years in the period ended December 31, 1996, of
USA Waste, incorporated by reference in this Prospectus, have been incorporated
herein in reliance on the report of Coopers & Lybrand L.L.P., independent
accountants, given on the authority of that firm as experts in accounting and
auditing.
 
                                       28
<PAGE>   30
                                    PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14.     OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

    The following table sets forth all expenses payable by the Company or the
Selling Stockholder in connection with the issuance and distribution of the
Securities, other than underwriting discounts and commissions.  All the amounts
shown are estimates, except the registration fee.

<TABLE>                                              
<S>                                                              <C>
    Registration fee  . . . . . . . . . . . . . . . . . . . . . $   454,546
    Fees and expenses of accountants  . . . . . . . . . . . . .     150,000
    Fees and expenses of legal counsel  . . . . . . . . . . . .      75,000
    Fees and expenses of Trustee and counsel  . . . . . . . . .      40,000  
    Fees of Rating Agencies . . . . . . . . . . . . . . . . . .      70,000
    Printing and engraving expenses . . . . . . . . . . . . . .     150,000
    Blue Sky fee and expenses (including counsel) . . . . . . .      15,000
    Miscellaneous . . . . . . . . . . . . . . . . . . . . . . .      20,000 
                                                                --------------
        Total   . . . . . . . . . . . . . . . . . . . . . . . . $   974,546 
                                                                ==============
</TABLE>


ITEM 15.     INDEMNIFICATION OF DIRECTORS AND OFFICERS.

    Under Delaware law, a corporation may include provisions in its certificate
of incorporation that will relieve its directors of monetary liability for
breaches of their fiduciary duty to the corporation, except under certain
circumstances, including a breach of the directors's duty of loyalty, acts or
omissions of the director not in good faith or which involve intentional
misconduct or a knowing violation of law, the approval of an improper payment
of a dividend or an improper purchase by the corporation of stock or any
transaction from which the director derived an improper personal benefit.  The
Company's Restated Certificate of Incorporation provides that the Company's
directors are not liable to the Company or its stockholders for monetary
damages for breach of their fiduciary duty, subject to the described exceptions
specified by Delaware law.

    Section 145 of the Delaware General Corporation Law grants to the Company
the power to indemnify each officer and director of the Company against
liabilities and expenses incurred by reason of the fact that he is or was an
officer or director of the Company if he acted in good faith and in a manner
he reasonably believed to be in or not opposed to the best interests of the
Company and, with respect to any criminal action or proceeding, had no
reasonable cause to believe his conduct was unlawful.  The By-laws of the
Company provide for indemnification of each officer and director of the Company
to the fullest extent permitted by Delaware law.





                                      II-1
<PAGE>   31

    Section 145 of the Delaware General Corporation Law also empowers the
Company to purchase and maintain insurance on behalf of any person who is or
was an officer or director of the Company against liability asserted against or
incurred by him in any such capacity, whether or not the Company would have the
power to indemnify such officer or director against such liability under the
provisions of Section 145.  The Company has purchased and maintains a
directors' and officers' liability policy for such purposes.

    The Company has entered into Indemnification Agreements with each of its
directors and executive officers.  Such Indemnification Agreements provide that
such persons (the "Indemnitees") will be indemnified and held harmless from all
expenses, including (without limitation) reasonable fees and expenses of
counsel, and all liabilities, including (without limitation) the amount of any
judgments, fines, penalties, excise taxes and amounts paid in settlement,
actually incurred by an Indemnitee with respect to any threatened, pending or
completed claim, action (including any action by or in the right of the
Company), suit or proceeding (whether formal or informal, or civil, criminal,
administrative, legislative, arbitrative or investigative) in respect of which
such Indemnitee is, was or at any time becomes, or is threatened to be made, a
party, witness, subject or target, by reason of the fact that such Indemnitee
is or was a director, officer, agent or fiduciary of the Company or serving at
the request of the Company as a director, officer, employee, fiduciary or
representative or another enterprise.  Such Indemnification Agreements also
provide that the Company, if requested to do so by an Indemnitee, will advance
to such Indemnitee, prior to final disposition of any proceeding, the expenses
actually incurred by the Indemnitee subject to the obligation of the Indemnitee
to refund if it is ultimately determined that such Indemnitee was not entitled
to indemnification.





                                      II-2
<PAGE>   32
ITEM 16.     EXHIBITS.

    The following documents are filed as exhibits to this Registration
Statement, including those exhibits incorporated herein by reference to a prior
filing of the Company under the Securities Act or the Exchange Act as indicated
in parentheses:

<TABLE>
<CAPTION>
    EXHIBIT
    NUMBER                                        EXHIBITS                                     PAGE NO.
    ------                                        --------                                     --------
     <S>        <C>                                                                             <C>
      1.1*      --   Form of Underwriting Agreement (Debt Securities).

      1.2*      --   Form of Underwriting Agreement (Common Stock).

      4.1**     --   Form of Indenture for Senior Debt Securities.

      4.2       --   Subordinated Indenture, dated as of February 1, 1997, between 
                     USA Waste Services, Inc. and Texas Commerce Bank National Association 
                     (incorporated by reference to Exhibit 4.1 to the Company's Current 
                     Report on Form 8-K (File No. 1-12154) filed with the Commission on 
                     February 7, 1997).

      4.3*      --   Form of Debt Securities.

      4.4       --   Restated Certificate of Incorporation of the Company  (incorporated by
                     reference  to Exhibit  3.1 to  Post-Effective Amendment  No. 1  to the
                     Company's Registration Statement on Form S-4 (File No. 33-60103)).

      4.5       --   Amendment  to Restated  Certificate  of Incorporation  of  the Company
                     (incorporated  by  reference   to  Exhibit  3.1(a)  to  the  Company's
                     Quarterly Report  on Form  10-Q for the  three months  ended March 31,
                     1996).

      4.6       --   Conformed Copy of Restated Certificate of  Incorporation as amended of
                     the  Company  (incorporated  by reference  to  Exhibit 3.1(b)  to  the
                     Company's Quarterly  Report on  Form 10-Q  for the  three months ended
                     March 31, 1996).

      4.7       --   Bylaws of  the Company  (incorporated by  reference to Exhibit 3.2  to
                     Post-Effective Amendment No. 1 to the Company's Registration Statement
                     on Form S-4 (File No. 33-60103)).

      4.8       --   Specimen  Common  Stock  Certificate  (incorporated  by  reference  to
                     Exhibit 4.3 to the Company's Registration Statement on Form S-3  (File
                     No. 33-76224)).

      5.1**     --   Opinion of  Liddell,  Sapp,  Zivley,  Hill & LaBoon,  L.L.P. as to the 
                     legality of the Securities being registered.

     12.1**     --   Computation of ratios of earnings to fixed charges.

     23.1**     --   Consent of  Liddell, Sapp, Zivley, Hill & LaBoon, L.L.P.  (included in 
                     Exhibit 5.1).
</TABLE>





                                      II-3
<PAGE>   33
<TABLE>
     <S>             <C> 
     23.2**     --   Consent of Coopers & Lybrand L.L.P.

     23.3**     --   Consent of Coopers & Lybrand, Chartered Accountants.

     23.4**     --   Consent of Ernst & Young LLP.

     24.1**     --   Powers of Attorney.

     25.1**     --   Statement of Eligibility of Trustee with respect to Senior Debt Indenture.

     25.2       --   Statement of Eligibility of Trustee with respect to Subordinated Debt 
                     Indenture (incorporated by reference to Exhibit 99.1 to the Company's 
                     Current Report on Form 8-K (File No. 1-12154) filed with the Commission 
                     on January 29, 1997).
</TABLE>

__________

    *        The Company will file any underwriting agreement relating to Debt
             Securities or Common Stock that it may enter into and any form of
             Debt Securities not previously so filed, as an exhibit to a 
             Current Report on Form 8-K.
    **       Filed herewith.


ITEM 17.     UNDERTAKINGS.

    (a)  The undersigned registrant hereby undertakes:

         (1) To file, during any period in which offers or sales are being
    made, a post-effective amendment to this registration statement:

             (i)     To include any prospectus required by Section 10(a)(3) of
         the Securities Act;

             (ii)    To reflect in the prospectus any facts or events arising
         after the effective date of the registration statement (or the most
         recent post-effective amendment thereof) which, individually or in the
         aggregate, represent a fundamental change in the information set forth
         in the registration statement; notwithstanding the foregoing, any
         increase or decrease in volume of securities offered (if  the total
         dollar value of securities offered would not exceed that which was
         registered) and any deviation from the low or high end of the
         estimated maximum offering range may be reflected in the form of
         prospectus filed with the Commission pursuant to Rule 424(b) if, in
         the aggregate, the changes





                                      II-4
<PAGE>   34
         in volume and price represent no more than a 20% change in the maximum
         aggregate offering price set forth in the "Calculation of Registration
         Fee" table in the effective registration statement;

             (iii)   To include any material information with respect to the
         plan of distribution not previously disclosed in the registration
         statement or any material change to such information in the
         registration statement;

    provided however, that paragraphs (a)(l)(i) and (a)(l)(ii) do not apply if
    the information required to be included in a post-effective amendment by
    those paragraphs is contained in periodic reports filed with or furnished
    to the Commission by the registrant pursuant to Section 13 or Section 15(d)
    of the Exchange Act that are incorporated by reference in the registration
    statement.

         (2) That, for the purpose of determining any liability under the
    Securities Act, each such post-effective amendment shall be deemed to be a
    new registration statement relating to the securities offered therein, and
    the offering of such securities at that time shall be deemed to be the
    initial bona fide offering thereof.

         (3) To remove from registration by means of a post-effective amendment
    any of the securities being registered which remain unsold at the
    termination of the offering.

    (b)  The undersigned registrant hereby undertakes that:

         (1) For purposes of determining any liability under the Securities
    Act, the information omitted from the form of prospectus filed as part of
    this registration statement in reliance upon Rule 430A and contained in a
    form of prospectus filed by the registrant pursuant to Rule 424(b)(1) or
    (4) or 497(h) under the Securities Act shall be deemed to be part of this
    registration statement as of the time it was declared effective.

         (2) For the purpose of determining any liability under the Securities
    Act, each post-effective amendment that contains a form of prospectus shall
    be deemed to be a new registration statement relating to the securities
    offered therein, and the offering of such securities at that time shall be
    deemed to be the initial bona fide offering thereof.

    (c)  The registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act, each filing of the registrant's annual
report pursuant to Section 13(a) or Section 15(d) of the Exchange Act (and,
where applicable, each filing of an employee benefit plan's annual report
pursuant to Section 15(d) of the Exchange Act) that is incorporated by
reference in the registration statement shall be deemed to be a new
registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

    (d)  Insofar as indemnification for liabilities arising under the
Securities Act may be permitted to directors, officers and controlling persons
of the registrant pursuant to any charter provision, by-law, contract,
arrangement, statute, or otherwise, the registrant has been advised that in the
opinion of the Commission such indemnification is against public policy as
expressed in the Securities Act and is, therefore, unenforceable.  In the event
that a claim for indemnification against such liabilities (other than the
payment by the registrant of expenses incurred or paid by a director, officer
or controlling person of the registrant in the successful defense of any
action, suit or proceeding) is asserted against the registrant by such
director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction





                                      II-5
<PAGE>   35
the question of whether such indemnification by it is against public policy as
expressed in the Securities Act and will be governed by the final adjudication
of such issue.





                                      II-6
<PAGE>   36
                                   SIGNATURES

    Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Houston, State of Texas on the 30th day of July,
1997.

                                  USA WASTE SERVICES, INC.
                   
                   
                                  By: /s/ JOHN E. DRURY 
                                     ------------------------------
                                          Chairman of the Board and
                                          Chief Executive Officer

         Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities indicated on July 30, 1997.

<TABLE>
<CAPTION>
                        SIGNATURE                                                TITLE
                        ---------                                                -----
 <S>                                                       <C>
 (i)  Principal executive officer:

      /s/ JOHN E. DRURY                                    Chairman of the Board and Chief Executive Officer
 -------------------------------------------------------               
          John E. Drury

 (ii)  Principal financial and accounting officers:

      /s/ EARL E. DeFRATES                                 Executive Vice President and Chief Financial
 -------------------------------------------------------   Officer
          Earl E. DeFrates
    

      /s/ BRUCE E. SNYDER                                  Vice President and Chief Accounting Officer                  
 -------------------------------------------------------    
          Bruce E. Snyder

 (iii)  Directors:

                                  *                     
 -------------------------------------------------------
          Ralph F. Cox


                                  *                     
 -------------------------------------------------------
          Richard J. Heckmann


                                  *                     
 -------------------------------------------------------
          Donald F. Moorehead, Jr.

                                  *                     
 -------------------------------------------------------
          David Sutherland-Yoest

</TABLE>




                                      II-7
<PAGE>   37
                                  *       
 --------------------------------------------
          Larry J. Martin                 
                                          
                                          
                                  *                      
 --------------------------------------------
          Rodney R. Proto                 
                                          
                                          
                                  *       
 --------------------------------------------
          William E. Moffett              
                                          
                                          
                                  *       
 --------------------------------------------
          Alexander W. Rangos             
                                          
                                          
                                  *       
 --------------------------------------------
          John G. Rangos, Sr.             
                                          
                                          
                                  *       
 --------------------------------------------
          Kosti Shirvanian                
                                          
                                          
                                  *       
 --------------------------------------------
          Savey Tufenkian                 
                                          
                                          
 *By:  /s/ GREGORY T. SANGALIS                                   
       --------------------------------------
        Gregory T. Sangalis, Attorney-in-Fact





                                      II-8
<PAGE>   38
                               INDEX TO EXHIBITS


<TABLE>
<CAPTION>
    EXHIBIT
    NUMBER                                        EXHIBITS                                     PAGE NO.
    ------                                        --------                                     --------
     <S>                 <C>                                                                    <C>
      1.1*      --       Form of Underwriting Agreement (Debt Securities).

      1.2*      --       Form of Underwriting Agreement (Common Stock).

      4.1**     --       Form of Indenture for Senior Debt Securities.

      4.2       --       Subordinated Indenture, dated as of February 1, 1997,
                         between USA Waste Services, Inc. and Texas Commerce
                         Bank, National Associated (Incorporated by reference
                         to Exhibit 4.1 to the Company's Current Report
                         on Form 8-K (File No. 1-12154) filed with the 
                         Commission on February 7, 1997).

      4.3*      --       Form of Debt Securities.

      4.4       --       Restated Certificate of Incorporation of the Company 
                         (incorporated by reference to Exhibit 3.1 to
                         Post-Effective Amendment No. 1 to the Company's
                         Registration Statement on Form S-4 (File No.
                         33-60103).

      4.5       --       Amendment to Restated Certificate of Incorporation of
                         the Company (incorporated by reference to Exhibit
                         3.1(a) to the Company's Quarterly Report on Form 10-Q
                         for the three months ended March 31, 1996).

      4.6       --       Conformed Copy of Restated Certificate of Incorporation
                         as amended of the Company (incorporated by reference to
                         Exhibit 3.1(b) to the Company's Quarterly Report on
                         Form 10-Q for the three months ended March 31, 1996).

      4.7       --       Bylaws of the Company (incorporated by reference to
                         Exhibit 3.2 to Post-Effective  Amendment No. 1 to the
                         Company's Registration Statement on Form S-4 (File No.
                         33-60103)).

      4.8       --       Specimen Common Stock Certificate (incorporated by
                         reference to Exhibit 4.3 to the Company's Registration
                         Statement on Form  S-3 (File No. 33-76224)).

      5.1**     --       Opinion of Liddell, Sapp, Zivley, Hill & LaBoon, 
                         L.L.P. as to the legality of the Securities being 
                         registered.
                         
     12.1**     --       Computation of ratios of earnings to fixed charges.

     23.1**     --       Consent of  Liddell, Sapp, Zivley, Hill & LaBoon, 
                         L.L.P. (included in Exhibit 5.1).

     23.2**     --       Consent of Coopers & Lybrand L.L.P.

     23.3**     --       Consent of Coopers & Lybrand, Chartered Accountants.

     23.4**     --       Consent of Ernst & Young LLP.
</TABLE>





                                       1
<PAGE>   39
<TABLE>
     <S>                 <C>     
     24.1**     --       Powers of Attorney.

     25.1**     --       Statements of Eligibility of Trustee with respect
                         to Senior Debt Indenture.

     25.2       --       Statement of Eligibility of Trustee with respect
                         to Subordinated Debt Indenture (incorporated by
                         reference to Exhibit 99.1 to the Company's Current
                         Report on Form 8-K (File No. 001-12154) filed with
                         the Commission on January 29, 1997).
- ----------                                                     
</TABLE>

*        The Company will file any underwriting agreement relating to Debt
         Securities or Common Stock that it may enter into and any form of Debt
         Securities not previously so filed, as an exhibit to a Current Report
         on Form 8-K.
**       Filed herewith.






                                       2

<PAGE>   1
                                                                     EXHIBIT 4.1


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


                            USA WASTE SERVICES, INC.


                                       TO
                    
                  
                    TEXAS COMMERCE BANK NATIONAL ASSOCIATION


                                    TRUSTEE



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



                                   INDENTURE


                          Dated as of __________, 1997


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


================================================================================
<PAGE>   2
                            USA WASTE SERVICES, INC.
         RECONCILIATION AND TIE BETWEEN TRUST INDENTURE ACT OF 1939 AND
                    INDENTURE DATED AS OF ____________, 1997


<TABLE>
<CAPTION>
Trust Indenture
   Act Section                                                                                Indenture Section
- -----------------                                                                             -----------------
<S>                                                                                                   <C>
Section  310(a)(1)      .........................................................................     609
         (a)(2)         .........................................................................     609
         (a)(3)         .........................................................................     Not applicable
         (a)(4)         .........................................................................     Not applicable
         (b)            .........................................................................     608
                        .........................................................................     610
Section  311(a)         .........................................................................     613
         (b)            .........................................................................     613
Section  312(a)         .........................................................................     701
                        .........................................................................     702
         (b)            .........................................................................     702
         (c)            .........................................................................     702
Section  313(a)         .........................................................................     703
         (b)            .........................................................................     703
         (c)            .........................................................................     703
         (d)            .........................................................................     703
Section  314(a)(1)-(3)  .........................................................................     704
         (a)(4)         .........................................................................     101
                        .........................................................................     1004
         (b)            .........................................................................     Not applicable
         (c)(1)         .........................................................................     102
         (c)(2)         .........................................................................     102
         (c)(3)         .........................................................................     Not Applicable
         (d)            .........................................................................     Not Applicable
         (e)            .........................................................................     102
Section  315(a)         .........................................................................     601
         (b)            .........................................................................     602
         (c)            .........................................................................     601
         (d)            .........................................................................     601
         (e)            .........................................................................     514
Section  316(a)         .........................................................................     101
         (a)(1)(A)      .........................................................................     502
                        .........................................................................     512
         (a)(1)(B)      .........................................................................     513
         (a)(2)         .........................................................................     Not applicable
         (b)            .........................................................................     508
         (c)            .........................................................................     104
Section  317(a)(1)      .........................................................................     503
         (a)(2)         .........................................................................     504
         (b)            .........................................................................     1003
Section  318(a)         .........................................................................     108
</TABLE>

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

NOTE:  This reconciliation and tie shall not, for any purpose, be deemed to be
       part of the Indenture.





                                       a
<PAGE>   3
                               TABLE OF CONTENTS


<TABLE>
<S>                                                                                                                    <C>
RECITALS OF THE COMPANY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
                                                                                                                       
         ARTICLE ONE                                                                                                   
                 DEFINITIONS AND OTHER PROVISIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
                 SECTION 101.  Definitions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
                 SECTION 102.  Compliance Certificates and Opinions . . . . . . . . . . . . . . . . . . . . . . . . .   8
                 SECTION 103.  Form of Documents Delivered to Trustee.  . . . . . . . . . . . . . . . . . . . . . . .   8
                 SECTION 104.  Acts of Holders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
                 SECTION 105.  Notices, Etc., to Trustee and Company. . . . . . . . . . . . . . . . . . . . . . . . .  10
                 SECTION 106.  Notice to Holders of Securities; Waiver. . . . . . . . . . . . . . . . . . . . . . . .  10
                 SECTION 107.  Language of Notices, Etc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
                 SECTION 108.  Conflict with Trust Indenture Act. . . . . . . . . . . . . . . . . . . . . . . . . . .  11
                 SECTION 109.  Effect of Headings and Table of Contents . . . . . . . . . . . . . . . . . . . . . . .  12
                 SECTION 110.  Successors and Assigns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
                 SECTION 111.  Separability Clause  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
                 SECTION 112.  Benefits of Indenture  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
                 SECTION 113.  Governing Law  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
                 SECTION 114.  Legal Holidays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12

         ARTICLE TWO
                 SECURITY FORMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
                 SECTION 201.  Forms Generally  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
                 SECTION 202.  Form of Trustee's Certificate of Authentication  . . . . . . . . . . . . . . . . . . .  13
                 SECTION 203.  Securities in Global Form  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
                 SECTION 204.  Form of Legend for Book-Entry Securities . . . . . . . . . . . . . . . . . . . . . . .  14

         ARTICLE THREE
                 THE SECURITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
                 SECTION 301.  Amount Unlimited; Issuable in Series . . . . . . . . . . . . . . . . . . . . . . . . .  15
                 SECTION 302.  Denominations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17
                 SECTION 303.  Execution, Authentication, Delivery and Dating . . . . . . . . . . . . . . . . . . . .  18
                 SECTION 304.  Temporary Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20
                 SECTION 305.  Registration, Registration of Transfer and Exchange  . . . . . . . . . . . . . . . . .  22
                 SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities and Coupons . . . . . . . . . . . . .  25
                 SECTION 307.  Payment of Interest; Interest Rights Preserved . . . . . . . . . . . . . . . . . . . .  26
                 SECTION 308.  Persons Deemed Owners  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
                 SECTION 309.  Cancellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
                 SECTION 310.  Computation of Interest  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
</TABLE>





                                       1
<PAGE>   4
<TABLE>
         <S>                                                                                                           <C>
                 ARTICLE FOUR
                 SATISFACTION AND DISCHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
                 SECTION 401.  Satisfaction and Discharge of Indenture  . . . . . . . . . . . . . . . . . . . . . . .  28
                 SECTION 402.  Application of Trust Money . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29

         ARTICLE FIVE
                 REMEDIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
                 SECTION 501.  Events of Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
                 SECTION 502.  Acceleration of Maturity; Rescission and Annulment . . . . . . . . . . . . . . . . . .  31
                 SECTION 503.  Collection of Indebtedness and Suits for Enforcement by Trustee  . . . . . . . . . . .  32
                 SECTION 504.  Trustee May File Proofs of Claim . . . . . . . . . . . . . . . . . . . . . . . . . . .  33
                 SECTION 505.  Trustee May Enforce Claims Without Possession of Securities or Coupons . . . . . . . .  33
                 SECTION 506.  Application of Money Collected . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33
                 SECTION 507.  Limitation on Suits  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34
                 SECTION 508.  Unconditional Right of Holders to Receive Principal, Premium and Interest  . . . . . .  35
                 SECTION 509.  Restoration of Rights and Remedies . . . . . . . . . . . . . . . . . . . . . . . . . .  35
                 SECTION 510.  Rights and Remedies Cumulative . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
                 SECTION 511.  Delay or Omission Not Waiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
                 SECTION 512.  Control by Holders of Securities . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
                 SECTION 513.  Waiver of Past Defaults  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
                 SECTION 514.  Undertaking for Costs  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37
                 SECTION 515.  Waiver of Stay or Extension Laws . . . . . . . . . . . . . . . . . . . . . . . . . . .  37

         ARTICLE SIX
                 THE TRUSTEE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37
                 SECTION 601.  Certain Duties and Responsibilities  . . . . . . . . . . . . . . . . . . . . . . . . .  37
                 SECTION 602.  Notice of Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37
                 SECTION 603.  Certain Rights of Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  38
                 SECTION 604.  Not Responsible for Recitals or Issuance of Securities . . . . . . . . . . . . . . . .  39
                 SECTION 605.  May Hold Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
                 SECTION 606.  Money Held in Trust  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
                 SECTION 607.  Compensation and Reimbursement . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
                 SECTION 608.  Disqualification; Conflicting Interests  . . . . . . . . . . . . . . . . . . . . . . .  40
                 SECTION 609.  Corporate Trustee Required; Eligibility  . . . . . . . . . . . . . . . . . . . . . . .  40
                 SECTION 610.  Resignation and Removal; Appointment of Successor  . . . . . . . . . . . . . . . . . .  40
                 SECTION 611.  Acceptance of Appointment by Successor . . . . . . . . . . . . . . . . . . . . . . . .  42
                 SECTION 612.  Merger, Conversion, Consolidation or Succession to Business  . . . . . . . . . . . . .  43
                 SECTION 613.  Preferential Collection of Claims Against Company  . . . . . . . . . . . . . . . . . .  43
                 SECTION 614.  Appointment of Authenticating Agent  . . . . . . . . . . . . . . . . . . . . . . . . .  43
</TABLE>





                                       2
<PAGE>   5
<TABLE>
         <S>                                                                                                           <C>
                 ARTICLE SEVEN
                 HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY  . . . . . . . . . . . . . . . . . . . . . . . .    45
                 SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders  . . . . . . . . . . . . .    45
                 SECTION 702.  Preservation of Information:  Communications to Holders  . . . . . . . . . . . . . .    45
                 SECTION 703.  Reports by Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    46
                 SECTION 704.  Reports by Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    46
                                                                                                                     
         ARTICLE EIGHT                                                                                               
                 CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE . . . . . . . . . . . . . . . . . . . . . . .    46
                 SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms . . . . . . . . . . . . . . . .    46
                 SECTION 802.  Successor Substituted  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    47
                                                                                                                     
         ARTICLE NINE                                                                                                
                 SUPPLEMENTAL INDENTURES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    47
                 SECTION 901.  Supplemental Indentures without Consent of Holders . . . . . . . . . . . . . . . . .    47
                 SECTION 902.  Supplemental Indentures with Consent of Holders  . . . . . . . . . . . . . . . . . .    49
                 SECTION 903.  Execution of Supplemental Indentures . . . . . . . . . . . . . . . . . . . . . . . .    50
                 SECTION 904.  Effect of Supplemental Indentures  . . . . . . . . . . . . . . . . . . . . . . . . .    50
                 SECTION 905.  Conformity with Trust Indenture Act  . . . . . . . . . . . . . . . . . . . . . . . .    50
                 SECTION 906.  Reference in Securities to Supplemental Indentures . . . . . . . . . . . . . . . . .    50
                                                                                                                     
         ARTICLE TEN                                                                                                 
                 COVENANTS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    51
                 SECTION 1001. Payment of Principal, Premium and Interest . . . . . . . . . . . . . . . . . . . . .    51
                 SECTION 1002. Maintenance of Office or Agency  . . . . . . . . . . . . . . . . . . . . . . . . . .    51
                 SECTION 1003. Money for Securities Payments to Be Held in Trust  . . . . . . . . . . . . . . . . .    52
                 SECTION 1004. Additional Amounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    53
                 SECTION 1005. Purchase of Securities by Company or Subsidiary  . . . . . . . . . . . . . . . . . .    54
                 SECTION 1006. Statement by Officer as to Default . . . . . . . . . . . . . . . . . . . . . . . . .    54
                 SECTION 1007. Waiver of Certain Covenants  . . . . . . . . . . . . . . . . . . . . . . . . . . . .    54
                 SECTION 1008. Limitation on Liens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    55
                 SECTION 1009. Limitations on Sale and Leaseback Transactions . . . . . . . . . . . . . . . . . . .    59

                                                                                                                     
         ARTICLE ELEVEN                                                                                              
                 REDEMPTION OF SECURITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    60
                 SECTION 1101. Applicability of Article   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    60
                 SECTION 1102. Election to Redeem; Notice to Trustee  . . . . . . . . . . . . . . . . . . . . . . .    60
                 SECTION 1103. Selection of Securities to Be Redeemed   . . . . . . . . . . . . . . . . . . . . . .    60
                 SECTION 1104. Notice of Redemption   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    61
                 SECTION 1105. Deposit of Redemption Price  . . . . . . . . . . . . . . . . . . . . . . . . . . . .    61
                 SECTION 1106. Securities Payable on Redemption Date  . . . . . . . . . . . . . . . . . . . . . . .    62
                 SECTION 1107. Securities Redeemed in Part  . . . . . . . . . . . . . . . . . . . . . . . . . . . .    62
                                                                                                                     
         ARTICLE TWELVE                                                                                              
                 SINKING FUNDS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    63
                 SECTION 1201. Applicability of Article   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    63
                 SECTION 1202. Satisfaction of Sinking Fund Payments with Securities  . . . . . . . . . . . . . . .    63
</TABLE>





                                       3
<PAGE>   6
<TABLE>
         <S>                                                                                                           <C>
                 SECTION 1203.  Redemption of Securities for Sinking Fund . . . . . . . . . . . . . . . . . . . . . .  63

         ARTICLE THIRTEEN
                 DEFEASANCE AND COVENANT DEFEASANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  64
                 SECTION 1302.  Defeasance and Discharge  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  64
                 SECTION 1303.  Covenant Defeasance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  64
                 SECTION 1304.  Conditions to Defeasance or Covenant Defeasance . . . . . . . . . . . . . . . . . . .  65
                 SECTION 1305.  Deposited Money and U.S. Government Obligations to Be Held in Trust; Other 
                                  Miscellaneous Provisions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  66
                 SECTION 1306.  Reinstatement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  67

         ARTICLE FOURTEEN
                 MEETINGS OF HOLDERS OF SECURITIES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  67
                 SECTION 1401.  Purposes for Which Meetings May Be Called . . . . . . . . . . . . . . . . . . . . . .  67
                 SECTION 1402.  Call, Notice and Place of Meetings  . . . . . . . . . . . . . . . . . . . . . . . . .  67
                 SECTION 1403.  Persons Entitled to Vote at Meetings  . . . . . . . . . . . . . . . . . . . . . . . .  68
                 SECTION 1404.  Quorum; Action  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  68
                 SECTION 1405.  Determination of Voting Rights; Conduct and Adjournment of Meetings . . . . . . . . .  69
                 SECTION 1406.  Counting Votes and Recording Action of Meetings . . . . . . . . . . . . . . . . . . .  70
</TABLE>





                                       4
<PAGE>   7
         INDENTURE, dated as of _________, 1997, between USA WASTE SERVICES,
INC., a corporation duly organized and existing under the laws of the State of
Delaware (herein called the "Company"), having its principal office at 1001
Fannin Street, Suite 4000, Houston, Texas 77002 and Texas Commerce Bank National
Association, a national banking association, as Trustee (herein called the
"Trustee"). 

                            RECITALS OF THE COMPANY

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

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

         NOW, THEREFORE, THIS INDENTURE WITNESSETH:

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

                                  ARTICLE ONE
                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

SECTION 101.  Definitions.

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

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

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

                 (3)      all accounting terms not otherwise defined herein
         have the meanings assigned to them in accordance with generally
         accepted accounting principles in the United States of America, and,
         except as otherwise herein expressly provided, the term "generally
         accepted accounting principles" with respect to any computation
         required or permitted hereunder shall mean such accounting principles
         as are generally accepted in the United States of America at the date
         of this Indenture; and
<PAGE>   8
                 (4)      the words "herein", "hereof" and "hereunder" and
         other words of similar import refer to this Indenture as a whole and
         not to any particular Article, Section or other subdivision, and the
         words "date of this Indenture" and "date hereof" and other words of
         similar import refer to the effective date of the original execution
         and delivery of this Indenture, viz. ______________, 1997.

         "Act", when used with respect to any Holder of a Security, has the
meaning specified in Section 104.

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

         "Authenticating Agent" means any Person authorized by the Trustee
pursuant to Section 614 to act on behalf of the Trustee to authenticate
Securities of one or more series.

         "Authorized Newspaper" means a newspaper, in the English language or
in an official language of the country of publication, customarily published on
each Business Day, whether or not published on Saturdays, Sundays or holidays,
and of general circulation in the place in connection with which the term is
used or in the financial community of such place.  Where successive
publications are required to be made in Authorized Newspapers, the successive
publications may be made in the same or in different newspapers in the same
city meeting the foregoing requirements and in each case on any Business Day.

         "Bearer Security" means any Security in the form established pursuant
to Section 201 which is payable to bearer, including, without limitation, a
Security in temporary or permanent global form.

         "Board of Directors" means either the board of directors of the
Company or any duly authorized committee of that board.

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

         "Book-Entry Security" means a Security bearing the legend specified in
Section 204, evidencing all or part of a series of Securities, issued to the
Depository for such series or its nominee, and registered in the name of such
Depository or nominee.  Book-Entry Securities shall not be deemed to be
Securities in global form for purposes of Sections 201 and 203 and Article
Three of this Indenture.





                                       2
<PAGE>   9
         "Business Day", when used with respect to any Place of Payment or any
other particular location referred to in this Indenture or in the Securities,
means each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day
on which banking institutions in that Place of Payment or other location are
authorized or obligated by law or executive order to close.

         "Certification Date" means with respect to Securities of any series
(i) if Bearer Securities of such series are not to be initially represented by
a temporary global Security, the date of delivery of the definitive Bearer
Security and (ii) if Bearer Securities of such series are initially
represented by a temporary global Security, the earlier of (A) the Exchange
Date with respect to Securities of such series and (B) if the first Interest
Payment Date with respect to Securities of such series is prior to such
Exchange Date, such Interest Payment Date.

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

         "Common Depositary" has the meaning specified in Section 304.

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

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

         "Corporate Trust Office" means the principal office of the Trustee in 
Houston, Texas at which at any particular time its corporate trust
business shall be administered.

         The term "corporation" means a corporation, association, limited
liability company, joint-stock company or business trust.

         The term "coupon" means any interest coupon appertaining to a Bearer
Security.

         "Defaulted Interest" has the meaning specified in Section 307.

         "Depository" means, with respect to the Securities of any series
issuable or issued in whole or in part in the form of one or more Book-Entry
Securities, the clearing agency registered under the Securities Exchange Act of
1934, specified for that purpose as contemplated by Section 301.

         "Dollar" or "$" means a dollar or other equivalent unit in such coin
or currency of the United States of America as at the time shall be legal
tender for the payment of public and private debts.





                                       3
<PAGE>   10
         "Euro-clear" means the operator of the Euro-clear System.

         "Event of Default" has the meaning specified in Section 501.

         "Exchange Date" has the meaning specified in Section 304.

         "Holder", when used with respect to any Security, means in the case of
a Registered Security the Person in whose name the Security is registered in
the Security Register and in the case of a Bearer Security the bearer thereof
and, when used with respect to any coupon, means the bearer thereof.

         "Indenture" means this instrument as originally executed or as it may
from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof
and shall include the terms of particular series of Securities established as
contemplated by Section 301.

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

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

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

         "Net Tangible Assets" means the total amount of assets appearing on a
consolidated balance sheet of the Company and its Subsidiaries less, without
duplication, the following:

                 (i)      all current liabilities (excluding any thereof which
         are extendible or renewable by their terms or replaceable or
         refundable pursuant to enforceable commitments at the option of the
         obligor thereon without requiring the consent of the obligee to a time
         more than 12 months after the time as of which the amount thereof is
         being computed and excluding current maturities of long-term
         indebtedness and preferred stock);

                 (ii)     all reserves for depreciation and other asset
         valuation reserves but excluding any reserves for deferred federal
         income taxes arising from accelerated depreciation or otherwise;

                 (iii)    all goodwill, trademarks, trade names, patents,
         unamortized debt discount and expense and other like intangible assets
         carried as an asset on said balance sheet; and

                 (iv)     all appropriate adjustments on account of minority
         interests of other Persons holding common stock in any Subsidiary.





                                       4
<PAGE>   11
         "Officers' Certificate" means a certificate complying with the
provisions of Section 102 signed by the Chairman of the Board, Vice Chairman of
the Board, the President or a Vice President, and by the Treasurer, an
Assistant Treasurer, the Secretary or an Assistant Secretary, of the Company,
and delivered to the Trustee.

         "Opinion of Counsel" means a written opinion of counsel, who may be an
employee of or counsel for the Company.

         "Original Issue Discount Security" means any Security which is issued
at a price lower than the principal amount payable upon the Stated Maturity
thereof and which provides for an amount less than the principal amount thereof
to be due and payable upon redemption thereof or upon a declaration of
acceleration of the Maturity thereof pursuant to Section 502.

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

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

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

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

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder or whether a
quorum is present at a meeting of Holders of Securities (i) the principal
amount of an Original Issue Discount Security that shall be deemed to be
Outstanding shall be the amount of the principal thereof that would be due and
payable as of the date of such determination upon acceleration of the Maturity
thereof pursuant to Section 502, (ii) the principal amount of a Security
denominated in a foreign currency or currencies, including composite
currencies, shall be the Dollar equivalent, determined on the date of original
issuance of such Security in the manner provided as contemplated by Section
301, of the principal amount (or, in the case of an Original Issue Discount
Security, the Dollar equivalent on the date of original issuance of such
Security of the amount determined as provided in (i) above) of such Security,
and (iii) Securities owned by the Company or any other obligor upon the
Securities or any Affiliate of the





                                       5
<PAGE>   12
Company or of such other obligor shall be disregarded and deemed not to be
Outstanding, except that, in determining whether the Trustee shall be protected
in relying upon any such request, demand, authorization, direction, notice,
consent or waiver, or upon any such determination as to the presence of a
quorum, only Securities which the Trustee knows to be so owned shall be so
disregarded.  Securities so owned which have been pledged in good faith may be
regarded as Outstanding if the pledgee establishes to the satisfaction of the
Trustee the pledgee's right so to act with respect to such Securities and that
the pledgee is not the Company or any other obligor upon the Securities or any
Affiliate of the Company or of such other obligor.

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

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

         "Place of Payment", when used with respect to the Securities of any
series, means the place or places as specified in accordance with Section 301
where, subject to the provisions of Section 1002, the principal of and any
premium and interest on the Securities of that series are payable.

         "Predecessor Security" of any particular Security means every previous
Security evidencing all or a portion of the same debt as that evidenced by such
particular Security; and for the purposes of this definition, any Security
authenticated and delivered under Section 306 in exchange for or in lieu of a
mutilated, destroyed, lost or stolen Security or a Security to which a
mutilated, destroyed, lost or stolen coupon appertains shall be deemed to
evidence the same debt as the mutilated, destroyed, lost or stolen Security or
the Security to which the mutilated, destroyed, lost or stolen coupon
appertains, as the case may be.

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

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

         "Registered Security" means any Security in the form established
pursuant to Section 201 which is registered in the Security Register.

         "Regular Record Date" for the interest payable on any Interest Payment
Date on the Registered Securities of any series means the date specified for
that purpose as contemplated by Section 301.

         "Responsible Officer", when used with respect to the Trustee, shall
mean any officer in the corporate trust department (or any successor group) of
the Trustee, including any Vice President, any Trust Officer, or any other
officer of the Trustee customarily performing functions similar to those
performed by the persons who at the time shall be such officers, respectively,
or to whom any





                                       6
<PAGE>   13
corporate trust matter is referred at the Corporate Trust Office because of his
or her knowledge of and familiarity with the particular subject.

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

         "Security Register" and "Security Registrar" have the respective
meanings specified in Section 305.

         "Special Record Date" for the payment of any Defaulted Interest on the
Registered Securities of any series means a date fixed by the Trustee pursuant
to Section 307.

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

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

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

         "Trust Indenture Act" means the Trust Indenture Act of 1939 as in
force at the date as of which this Indenture was executed; provided, however,
that in the event the Trust Indenture Act of l939 is amended after such date,
"Trust Indenture Act" means, to the extent required by any such amendment, the
Trust Indenture Act of 1939 as so amended.

         "United States" means the United States of America (including the
States and the District of Columbia), its territories, its possessions and
other areas subject to its jurisdiction.

         "United States Alien" means any Person who, for United States Federal
income tax purposes, is a foreign corporation, a non-resident alien individual,
a non-resident alien fiduciary of a foreign estate or trust, or a foreign
partnership one or more of the members of which is, for United States Federal
income tax purposes, a foreign corporation, a non-resident alien individual or
a non-resident alien fiduciary of a foreign estate or trust.

         "U.S. Government Obligations" has the meaning specified in Section
1304.





                                       7
<PAGE>   14
         "Vice President", when used with respect to the Company 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 "vice president".

SECTION 102.  Compliance Certificates and Opinions.

         Upon any application or request by the Company to the Trustee to take
any action under any provision of this Indenture, the Company shall furnish to
the Trustee such certificates and opinions as may be required under the Trust
Indenture Act.  Each such certificate or opinion shall be given in the form of
an Officers' Certificate, if to be given by an officer of the Company, or an
Opinion of Counsel, if to be given by counsel, and shall comply with the
requirements of the Trust Indenture Act and any other requirements set forth in
this Indenture.

SECTION 103.  Form of Documents Delivered to Trustee.

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

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

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

SECTION 104.  Acts of Holders.

         (a)     Any request, demand, authorization, direction, notice,
consent, waiver or other action provided by this Indenture to be given or taken
by Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by an agent
duly appointed in writing.  If Securities of a series are issuable as Bearer
Securities, any request, demand, authorization, direction, notice, consent,
waiver or other action provided by this Indenture to be given or taken by
Holders of such series may, alternatively, be embodied in and evidenced by the
record of Holders of Securities of such series voting in favor thereof, either
in





                                       8
<PAGE>   15
person or by proxies duly appointed in writing, at any meeting of Holders of
Securities of such series duly called and held in accordance with the
provisions of Article Fourteen, or a combination of such instruments and any
such record.  Except as herein otherwise expressly provided, such action shall
become effective when such instrument or instruments or record or both are
delivered to the Trustee and, where it is hereby expressly required, to the
Company.  Such instrument or instruments and any such record (and the action
embodied therein and evidenced thereby) are herein sometimes referred to as the
"Act" of the Holders signing such instrument or instruments and so voting at
any such meeting.  Proof of execution of any such instrument or of a writing
appointing any such agent or proxy or of the holding by any Person of a
Security shall be sufficient for any purpose of this Indenture and (subject to
Section 601) conclusive in favor of the Trustee and the Company if made in the
manner provided in this Section.  The record of any meeting of Holders of
Securities shall be proved in the manner provided in Section 1406.

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

         (c)     The Company may, in the circumstances permitted by the Trust
Indenture Act, fix any day as the record date for the purpose of determining
the Holders of Registered Securities of any series entitled to give or take any
request, demand, authorization, direction, notice, consent, waiver or other
action, or to vote on any action, authorized or permitted to be given or taken
by Holders of Securities of such series.  If not set by the Company prior to
the first solicitation of a Holder of Securities of such series made by any
Person in respect of any such action, or, in the case of any such vote, prior
to such vote, the record date for any such action or vote shall be the 30th day
(or, if later, the date of the most recent list of Holders required to be
provided pursuant to Section 701) prior to such first solicitation or vote, as
the case may be.  With regard to any record date for action to be taken by the
Holders of one or more series of Securities, only the Holders of Securities of
such series on such date (or their duly designated proxies) shall be entitled
to give or take, or vote on, the relevant action.

         (d)     The principal amount and serial numbers of Registered
Securities held by any Person, and the date of holding the same, shall be
proved by the Security Register.

         (e)     The principal amount and serial numbers of Bearer Securities
held by any Person, and the date of holding the same, may be proved by the
production of such Bearer Securities or by a certificate executed, as
depositary, by any trust company, bank, banker or other depositary, wherever
situated, if such certificate shall be deemed by the Trustee to be
satisfactory, showing that at the date therein mentioned such Person had on
deposit with such depositary, or exhibited to it, the Bearer Securities therein
described; or such facts may be proved by the certificate or affidavit of the
Person holding such Bearer Securities, if such certificate or affidavit is
deemed by the Trustee to be





                                       9
<PAGE>   16
satisfactory.  The Trustee and the Company may assume that such ownership of
any Bearer Security continues until (1) another certificate or affidavit
bearing a later date issued in respect of the same Bearer Security is produced,
or (2) such Bearer Security is produced to the Trustee by some other Person, or
(3) such Bearer Security is surrendered in exchange for a Registered Security,
or (4) such Bearer Security is no longer Outstanding.  The principal amount and
serial numbers of Bearer Securities held by any Person, and the date of holding
the same, may also be proved in any other manner which the Trustee deems
sufficient.

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

         (g)     Without limiting the foregoing, a Holder entitled hereunder to
give or take any action hereunder with regard to any particular Security may do
so with regard to all or any part of the principal amount of such Security or
by one or more duly appointed agents each of which may do so pursuant to such
appointment with regard to all or any different part of such principal amount.

SECTION 105.  Notices, Etc., to Trustee and Company.

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

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

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

SECTION 106.  Notice to Holders of Securities; Waiver.

         Except as otherwise expressly provided herein, where this Indenture 
provides for notice to Holders of Securities of any event,

                 (1)      such notice shall be sufficiently given to Holders of
         Registered Securities if in writing and mailed, first-class postage
         prepaid, to each Holder of a Registered Security affected by such
         event, at the address of such Holder as it appears in the Security
         Register, not later than the latest date, and not earlier than the
         earliest date, prescribed for the giving of such notice; and





                                       10
<PAGE>   17
                 (2)      such notice shall be sufficiently given to Holders of
         Bearer Securities if published in an Authorized Newspaper in The City
         of New York and in such other city or cities as may be specified in
         such Securities on a Business Day at least twice, the first such
         publication to be not earlier than the earliest date, and not later
         than the latest date, prescribed for the giving of such notice.

         In case by reason of the suspension of regular mail service or by
reason of any other cause it shall be impracticable to give such notice to
Holders of Registered Securities by mail, then such notification as shall be
made with the approval of the Trustee shall constitute sufficient notice to
such Holders for every purpose hereunder.  In any case where notice to Holders
of Registered Securities is given by mail, neither the failure to mail such
notice, nor any defect in any notice so mailed, to any particular Holder of a
Registered Security shall affect the sufficiency of such notice with respect to
other Holders of Registered Securities or the sufficiency of any notice to
Holders of Bearer Securities given as provided herein.

         In case by the reason of the suspension of publication of any
Authorized Newspaper or Authorized Newspapers or by reason of any other cause
it shall be impracticable to publish any notice to Holders of Bearer Securities
as provided above, then such notification to Holders of Bearer Securities as
shall be given with the approval of the Trustee shall constitute sufficient
notice to such Holders for every purpose hereunder.  Neither the failure to
give notice by publication to Holders of Bearer Securities as provided above,
nor any defect in any notice so published, shall affect the sufficiency of any
notice to Holders of Registered Securities given as provided herein.

         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 of Securities 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.

SECTION 107.  Language of Notices, Etc.

         Any request, demand, authorization, direction, notice, consent or
waiver required or permitted under this Indenture shall be in the English
language, except that any published notice may be in an official language of
the country of publication.

SECTION 108.  Conflict 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, 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.





                                       11
<PAGE>   18
SECTION 109.  Effect of Headings and Table of Contents.

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

SECTION 110.  Successors and Assigns.

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

SECTION 111.  Separability Clause.

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

SECTION 112.  Benefits of Indenture.

         Nothing in this Indenture or the Securities or coupons, express or
implied, shall give to any Person, other than the parties hereto, their
successors hereunder and the Holders of Securities and coupons, any benefit or
any legal or equitable right, remedy or claim under this Indenture.

SECTION 113.  Governing Law.

         This Indenture and the Securities and coupons shall be governed by and
construed in accordance with the laws of the State of New York.

SECTION 114.  Legal Holidays.

         In any case where any Interest Payment Date, Redemption Date or Stated
Maturity of any Security shall not be a Business Day at any Place of Payment,
then (notwithstanding any other provision of this Indenture or of the
Securities or coupons other than a provision in the Securities of any series
which specifically states that such provision shall apply in lieu of this
Section) payment of interest or principal (and premium, if any) need not be
made at such Place of Payment on such date, but may be made on the next
succeeding Business Day at such Place of Payment with the same force and effect
as if made on the Interest Payment Date or Redemption Date, or at the Stated
Maturity, provided that no interest shall accrue on the amount so payable for
the period from and after such Interest Payment Date, Redemption Date or Stated
Maturity, as the case may be.





                                       12
<PAGE>   19
                                  ARTICLE TWO
                                 SECURITY FORMS

SECTION 201.  Forms Generally.

         The Registered Securities, if any, of each series and the Bearer
Securities, if any, of each series and related coupons shall be in
substantially the form (including temporary or permanent global form) as shall
be established by or pursuant to a Board Resolution or in one or more
indentures supplemental hereto, in each case with such appropriate insertions,
omissions, substitutions and other variations as are required or permitted by
this Indenture, and may have such letters, numbers or other marks of
identification and such legends or endorsements placed thereon as may be
required to comply with law, or with the rules of any securities exchange or to
conform to general usage, all as may, consistently herewith, be determined by
the officers executing such Securities or coupons, as evidenced by their
execution of the Securities or coupons.  If temporary Securities of any series
are issued in global form as permitted by Section 304, the form thereof shall
be established as provided in the preceding sentence.  A copy of the Board
Resolution establishing the forms of Securities or coupons of any series (or
any such temporary global Security) shall be certified by the Secretary or an
Assistant Secretary of the Company and delivered to the Trustee at or prior to
the delivery of the Company Order contemplated by Section 303 for the
authentication and delivery of such Securities (or any such temporary global
Security) or coupons.

         Unless otherwise specified as contemplated by Section 301, Securities
in bearer form shall have interest coupons attached.

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

SECTION 202.  Form of Trustee's Certificate of Authentication.

         The Trustee's certificate of authentication shall be in substantially
the following form:

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


                                        ----------------------------------------
                                                     as Trustee


                                        By:   
                                            ------------------------------------
                                                     Authorized Officer."





                                       13
<PAGE>   20

SECTION 203.  Securities in Global Form.

         If Securities of a series are issuable in global form, as specified as
contemplated by Section 301, then, notwithstanding clause (10) of Section 301
and the provisions of Section 302, any such Security shall represent such of
the Outstanding Securities of such series as shall be specified therein and may
provide that it shall represent the aggregate amount of Outstanding Securities
from time to time endorsed thereon and that the aggregate amount of Outstanding
Securities represented thereby may be reduced to reflect exchanges.  Any
endorsement of a Security in global form to reflect the amount, or any increase
or decrease in the amount, of Outstanding Securities represented thereby shall
be made by the Trustee in such manner and upon instructions given by such
Person or Persons as shall be specified therein or in the Company Order to be
delivered to the Trustee pursuant to Section 303 or Section 304.  Subject to
the provisions of Section 303 and, if applicable, Section 304, the Trustee
shall deliver and redeliver any Security in permanent global form in the manner
and upon instructions given by the Person or Persons specified therein or in
the applicable Company Order.  If a Company Order pursuant to Section 303 or
304 has been, or simultaneously is, delivered, any instructions by the Company
with respect to endorsement or delivery or redelivery of a Security in global
form shall be in writing but need not comply with Section 102 and need not be
accompanied by an Opinion of Counsel.

         The provisions of the last sentence of Section 303 shall apply to any
Security represented by a Security in global form if such Security was never
issued and sold by the Company and the Company delivers to the Trustee the
Security in global form together with written instructions (which need not
comply with Section 102 and need not be accompanied by an Opinion of Counsel)
with regard to the reduction in the principal amount of Securities represented
thereby, together with the written statement contemplated by the last sentence
of Section 303.

         Notwithstanding the provisions of Sections 201 and 307, unless
otherwise specified as contemplated by Section 301, payment of principal of and
any premium and interest on any Security in permanent global form shall be made
to the Person or Persons specified therein.

SECTION 204.  Form of Legend for Book-Entry Securities.

         Any Book-Entry Security authenticated and delivered hereunder shall
bear a legend in substantially the following form:

         "This Security is a Book-Entry Security within the meaning of the
Indenture hereinafter referred to and is registered in the name of a Depository
or a nominee of a Depository.  This Security is exchangeable for Securities
registered in the name of a Person other than the Depository or its nominee
only in the limited circumstances described in the Indenture, and no transfer
of this Security (other than a transfer of this Security as a whole by the
Depository to a nominee of the Depository or by a nominee of the Depository to
the Depository or another nominee of the Depository) may be registered except
in such limited circumstances."





                                       14
<PAGE>   21
                                 ARTICLE THREE
                                 THE SECURITIES

SECTION 301.  Amount Unlimited; Issuable in Series.

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

         The Securities may be issued in one or more series, and each such
series shall rank equally and pari passu with each other series.  There shall
be established in or pursuant to a Board Resolution and, subject to Section
303, set forth, or determined in the manner provided, 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 which may be authenticated and delivered
         under this Indenture (except for Securities authenticated and
         delivered upon registration of transfer of, or in exchange for, or in
         lieu of, other Securities of the series pursuant to Section 304, 305,
         306, 906 or 1107 and except for any Securities which, pursuant to
         Section 303, are deemed never to have been authenticated and delivered
         hereunder);

                 (3)      whether Securities of the series are to be issuable
         as Registered Securities, Bearer Securities or both, whether any
         Securities of the series are to be issuable initially in temporary
         global form and whether any Securities of the series are to be
         issuable in permanent global form with or without coupons and, if so,
         whether beneficial owners of interests in any such permanent global
         Security may exchange such interests for Securities of such series and
         of like tenor of any authorized form and denomination and the
         circumstances under which any such exchanges may occur, if other than
         in the manner provided in Section 305;

                 (4)      the Person to whom any interest on any Registered
         Security of the series shall be payable, if other than the Person in
         whose name that Security (or one or more Predecessor Securities) is
         registered at the close of business on the Regular Record Date for
         such interest, the manner in which, or the Person to whom, any
         interest on any Bearer Security of the series shall be payable, if
         otherwise than upon presentation and surrender of the coupons
         appertaining thereto as they severally mature and the extent to which,
         or the manner in which, any interest payable on a temporary global
         Security on an Interest Payment Date will be paid if other than in the
         manner provided in Section 304;

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





                                       15
<PAGE>   22
                 (6)      the rate or rates at which the Securities of the
         series shall bear interest, if any, or the method by which such rate
         shall be determined, the date or dates from which any such interest
         shall accrue, the Interest Payment Dates on which any such interest
         shall be payable, and the Regular Record Date for any interest payable
         on any Registered Securities on any Interest Payment Date and whether,
         and under what circumstances, additional amounts with respect to such
         Securities shall be payable as set forth in Section 1001;

                 (7)      the place or places where, subject to the provisions
         of Section 1002, the principal of and any premium and interest on
         Securities of the series shall be payable, any Registered Securities
         of the series may be surrendered for registration of transfer,
         Securities of the series may be surrendered for exchange and notices
         and demands to or upon the Company in respect of the Securities of the
         series and this Indenture may be served;

                 (8)      the right, if any, of the Company to redeem
         Securities of the series, in whole or in part, at its option and the
         period or periods within which, the price or prices at which and the
         terms and conditions upon which Securities of the series may be so
         redeemed;

                 (9)      the obligation, if any, of the Company to redeem,
         purchase, or repay Securities of the series pursuant to any mandatory
         redemption, sinking fund or analogous provisions or at the option of a
         Holder thereof and the period or periods within which, the price or
         prices at 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;

                 (10)     the denominations in which any Registered Securities
         of the series shall be issuable, if other than denominations of $1,000
         and any integral multiple thereof, and the denomination or
         denominations in which any Bearer Securities of the series shall be
         issuable, if other than the denomination of $5,000;

                 (11)     the currency or currencies, including composite
         currencies, in which payment of the principal of and any premium and
         interest on any Securities of the series shall be payable if other
         than the currency of the United States of America and the manner of
         determining the equivalent thereof in the currency of the United
         States of America for purposes of the definition of "Outstanding" in
         Section 101;

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

                 (13)     if other than the principal amount thereof, the
         portion of the principal amount of any Securities of the series which
         shall be payable upon declaration of acceleration of the Maturity
         thereof pursuant to Section 502;





                                       16
<PAGE>   23
                 (14)     if the principal of and any premium or interest on
         the Securities of the series are to be payable, at the election of the
         Company or a Holder thereof, in a currency or currencies, including
         composite currencies, other than that or those in which the Securities
         are stated to be payable, the currency or currencies in which payment
         of the principal of and any premium and interest on Securities of such
         series as to which such election is made shall be payable, and the
         periods within which and the terms and conditions upon which such
         election is to be made;

                 (15)     whether the Securities of the series shall be issued
         upon original issuance in whole or in part in the form of one or more
         Book-Entry Securities and, in such case, (a) the Depository with
         respect to such Book-Entry Security or Securities; and (b) the
         circumstances under which any such Book-Entry Security may be
         exchanged for Securities registered in the name of, and any transfer
         of such Book-Entry Security may be registered to, a Person other than
         such Depository or its nominee, if other than as set forth in Section
         305;

                 (16)     the applicability, if any, of Section 1008 or Section
         1009 to the Securities of such series;

                 (17)     if either or both of the provisions of Section 1302
         or 1303 are applicable to the Securities of such series and any
         additional means of discharge pursuant to Section 1302 or 1303 and any
         additional conditions to the provisions of Section 1302 or 1303;

                 (18)     any other Events of Default or covenants with respect
         to the Securities of such series; and

                 (19)     any other terms of the series (which terms shall not
         be inconsistent with the provisions of this Indenture except as
         permitted by Section 901(5)).

         All Securities of any one series and the coupons appertaining to any
Bearer Securities of such series shall be substantially identical except, in
the case of Registered Securities, as to denomination and except as may
otherwise be provided in or pursuant to the Board Resolution referred to above
and (subject to Section 303) set forth, or determined in the manner provided,
in the Officers' Certificate referred to above or in any such indenture
supplemental hereto.

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

SECTION 302.  Denominations.

         Unless otherwise provided as contemplated by Section 301 with respect
to any series of Securities, any Registered Securities of a series shall be
issuable in denominations of $1,000 and any integral multiple thereof and any
Bearer Securities of a series shall be issuable in the denomination of $5,000.





                                       17
<PAGE>   24
SECTION 303.  Execution, Authentication, Delivery and Dating.

         The Securities shall be executed on behalf of the Company by its
Chairman of the Board, a Vice Chairman of the Board, its President, its
Treasurer or its Chief Financial Officer, under its corporate seal reproduced
thereon attested by its Secretary or one of its Assistant Secretaries.  The
signature of any of these officers on the Securities may be manual or
facsimile.  Coupons shall bear the facsimile signature of the Treasurer or any
Assistant Treasurer of the Company.

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

         At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities of any series, together with
any coupons appertaining thereto, executed by the Company to the Trustee for
authentication, together with a Company Order for the authentication and
delivery of such Securities, and the Trustee in accordance with the Company
Order shall authenticate and deliver such Securities; provided, however, that,
unless otherwise provided with respect to such series, in connection with its
original issuance, no Bearer Security shall be mailed or otherwise delivered to
any location in the United States; and provided, further, that, unless
otherwise provided with respect to such series, a Bearer Security may be
delivered in connection with its original issuance only if the Person entitled
to receive such Bearer Security shall have furnished a certificate in the form
set forth in Exhibit A to this Indenture, dated no earlier than the
Certification Date.  If any Security shall be represented by a permanent global
Bearer Security, then, for purposes of this Section and Section 304, the
notation of a beneficial owner's interest therein upon original issuance of
such Security or upon exchange of a portion of a temporary global Security
shall be deemed to be delivery in connection with its original issuance of such
beneficial owner's interest in such permanent global Security.  Except as
permitted by Section 306, the Trustee shall not authenticate and deliver any
Bearer Security unless all appurtenant coupons for interest then matured have
been detached and canceled.

         In authenticating Securities, the Trustee shall be entitled to
receive, and (subject to Section 601) shall be fully protected in relying upon,
an Opinion of Counsel stating:

                 (a)      that the forms of such Securities and coupons
         established by or pursuant to a Board Resolution as contemplated by
         Section 201 have been established in conformity with the provisions of
         this Indenture;

                 (b)      if the terms of such Securities and any coupons have
         been established by or pursuant to a Board Resolution as permitted by
         Section 301, that such terms have been established in conformity with
         the provisions of this Indenture; and





                                       18
<PAGE>   25
                 (c)      that such Securities, together with any coupons
         appertaining thereto, when authenticated and delivered by the Trustee
         and issued by the Company in the manner and subject to any conditions
         specified in such Opinion of Counsel, will constitute valid and
         legally binding obligations of the Company enforceable in accordance
         with their terms, subject to bankruptcy, insolvency, fraudulent
         transfer, reorganization and other laws of general applicability
         relating to or affecting creditors' rights and to general equity
         principles.

Such Opinion of Counsel shall also cover such other matters as the Trustee may
reasonably request.

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

         Notwithstanding the provisions of Section 301 and of the two preceding
paragraphs, if all Securities of a series are not to be originally issued at
one time, it shall not be necessary to deliver the Officers' Certificate
otherwise required pursuant to Section 301 or the Company Order and Opinion of
Counsel otherwise required pursuant to such preceding paragraphs at or prior to
the time of authentication of each Security of such series if such documents
are delivered at or prior to the authentication upon issuance of the first
Security of such series to be issued.

         After the original issuance of the first Security of such series to be
issued, any separate request by the Company that the Trustee authenticate
Securities of such series for original issuance will be deemed to be a
certification by the Company (which, subject to Section 601, the Trustee shall
be fully protected in relying on) that it is in compliance with all conditions
precedent provided for in this Indenture relating to the authentication and
delivery of such Securities.

         Each Registered Security shall be dated the date of its
authentication and each Bearer Security shall be dated as of the date of
original issuance of the first Security of such series to be issued.

         No Security or coupon shall be entitled to any benefit under this
Indenture or be valid or obligatory for any purpose unless there appears on
such Security, or the Security to which such coupon appertains, a certificate
of authentication substantially in the form provided for herein executed by the
Trustee by manual signature, and such certificate upon any Security shall be
conclusive evidence, and the only evidence, that such Security has been duly
authenticated and delivered hereunder.  Notwithstanding the foregoing, if any
Security shall have been authenticated and delivered hereunder but never issued
and sold by the Company, and the Company shall deliver such Security to the
Trustee for cancellation as provided in Section 309 together with a written
statement (which need not comply with Section 102 and need not be accompanied
by an Opinion of Counsel) stating that such Security has never been issued and
sold by the Company, for all purposes of this Indenture such Security shall be
deemed never to have been authenticated and delivered hereunder and shall never
be entitled to the benefits of this Indenture.





                                       19
<PAGE>   26
SECTION 304.  Temporary Securities.

         Pending the preparation of definitive Securities of any series, the
Company may execute, and upon Company Order the Trustee shall authenticate and
deliver, temporary Securities which are printed, lithographed, typewritten or
otherwise produced, in any authorized denomination, substantially of the tenor
of the definitive Securities in lieu of which they are issued, in registered
form or, if authorized, in bearer form with one or more coupons or without
coupons, and with such appropriate insertions, omissions, substitutions and
other variations as the officers executing such Securities may determine, as
evidenced by their execution of such Securities.  In the case of any series
issuable as Bearer Securities, such temporary Securities may be in global form.
A temporary Bearer Security shall be delivered only in compliance with the
conditions set forth in Section 303.

         Except in the case of temporary Securities in global form (which shall
be exchanged in accordance with the provisions of the following paragraphs), if
temporary Securities of any series are issued, the Company will cause
definitive Securities of that series to be prepared without unreasonable delay.
After the preparation of definitive Securities of such series, the temporary
Securities of such series shall be exchangeable for definitive Securities of
such series upon surrender of the temporary Securities of such series at the
office or agency of the Company maintained pursuant to Section 1002 in a Place
of Payment for such series for the purpose of exchanges of Securities of such
series without charge to the Holder.  Upon surrender for cancellation of any
one or more temporary Securities of any series (accompanied by any unmatured
coupons appertaining thereto) the Company shall execute and the Trustee shall
authenticate and deliver in exchange therefor a like aggregate principal amount
of definitive Securities of the same series and of like tenor of authorized
denominations; provided, however, that no definitive Bearer Security shall be
issued in exchange for a temporary Registered Security.

         If temporary Securities of any series are issued in global form, any
such temporary global Security shall, unless otherwise provided therein, be
delivered to the London office of a depositary or common depositary (the
"Common Depositary"), for the benefit of Euro-clear and CEDEL S.A., for credit
to the respective accounts of the beneficial owners of such Securities (or to
such other accounts as they may direct).

         Without unnecessary delay but in any event not later than the date
specified in, or determined pursuant to the terms of, any such temporary global
Security of a series (the "Exchange Date"), the Company shall deliver to the
Trustee definitive Securities of that series in aggregate principal amount
equal to the principal amount of such temporary global Security, executed by
the Company.  On or after the Exchange Date such temporary global Security
shall be surrendered by the Common Depositary to the Trustee, as the Company's
agent for such purpose, to be exchanged, in whole or from time to time in part,
for definitive Securities of that series without charge and the Trustee shall
authenticate and deliver, in exchange for each portion of such temporary global
Security, a like aggregate principal amount of definitive Securities of the
same series of authorized denominations and of like tenor as the portion of
such temporary global Security to be exchanged; provided, however, that, unless
otherwise specified in such temporary global Security, upon such presentation
by the Common Depositary, such temporary





                                       20
<PAGE>   27
global Security is accompanied by a certificate dated the Exchange Date or a
subsequent date and signed by Euro-clear as to the portion of such temporary
global Security held for its account then to be exchanged and a certificate
dated the Exchange Date or a subsequent date and signed by CEDEL S.A. as to the
portion of such temporary global Security held for its account then to be
exchanged, each in the form set forth in Exhibit B to this Indenture.  The
definitive Securities to be delivered in exchange for any such temporary global
Security shall be in bearer form, registered form, permanent global bearer form
or permanent global registered form, or any combination thereof, as specified
as contemplated by Section 301, and if any combination thereof is so specified,
as requested by the beneficial owner thereof; provided, however, that no
definitive Bearer Security or permanent global Security shall be delivered in
exchange for a temporary Bearer Security except in compliance with the
conditions set forth in Section 303.

         Unless otherwise specified in the temporary global Security, the
interest of a beneficial owner of Securities of a series in a temporary global
Security shall be exchanged on the Exchange Date for definitive Securities (and,
where the form of the definitive Securities is not specified by the Holder, for
an interest in a permanent global Security) of the same series and of like
tenor unless, on or prior to the Exchange Date, such beneficial owner has not
delivered to Euro-clear or CEDEL S.A., as the case may be, a certificate in the
form set forth in Exhibit A to this Indenture dated no earlier than the
Certification Date, copies of which certificate shall be available from the
offices of Euro-clear and CEDEL S.A., the Trustee, any Authenticating Agent
appointed for such series of Securities and each Paying Agent and after the
Exchange Date, the interest of a beneficial owner of Securities of a series in
a temporary global Security shall be exchanged for definitive Securities (and,
where the form of the definitive Securities is not specified by the Holder, for
an interest in a permanent global Security) of the same series and of like
tenor following such beneficial owner's delivery to Euro-clear or CEDEL S.A.,
as the case may be, of a certificate in the form set forth in Exhibit A to this
Indenture dated no earlier than the Certification Date.  Unless otherwise
specified in such temporary global Security, any exchange shall be made free of
charge to the beneficial owners of such temporary global Security, except that
a Person receiving definitive Securities must bear the cost of insurance,
postage, transportation and the like in the event that such Person does not
take delivery of such definitive Securities in person at the offices of
Euro-clear or CEDEL S.A. Definitive Securities in bearer form to be delivered
in exchange for any portion of a temporary global Security shall be delivered
only outside the United States.

         Until exchanged in full as hereinabove provided, the temporary
Securities of any series shall in all respects be entitled to the same benefits
under this Indenture as definitive Securities of the same series and of like
tenor authenticated and delivered hereunder, except that, unless otherwise
specified as contemplated by Section 301, interest payable on a temporary
global Security on an Interest Payment Date for Securities of such series shall
be payable to Euro-clear and CEDEL S.A. on such Interest Payment Date upon
delivery by Euro-clear and CEDEL S.A. to the Trustee of a certificate or
certificates in the form set forth in Exhibit B to this Indenture, for credit
without further interest on or after such Interest Payment Date to the
respective accounts of the Persons who are the beneficial owners of such
temporary global Security on such Interest Payment Date and who have each
delivered to Euro-clear or CEDEL S.A., as the case may be, a certificate in the
form set forth in Exhibit A to this Indenture.  Any interest so received by
Euro-clear and CEDEL S.A. and not paid as herein provided shall be returned to
the Trustee immediately prior to the expiration of two years after such
Interest Payment Date in order to be repaid to the Company in accordance with
Section 1003.





                                       21
<PAGE>   28
SECTION 305.  Registration, Registration of Transfer and Exchange.

         The Company shall cause to be kept at an office or agency to be
maintained by the Company in accordance with Section 1002 a register (being the
combined register of the Security Registrar and all transfer agents designated
pursuant to Section 1002 for the purpose of registration of transfer of
Securities and sometimes collectively referred to as the "Security Register")
in which, subject to such reasonable regulations as it may prescribe, the
Company shall provide for the registration of each series of Registered
Securities and the registration of transfers of such Registered Securities.
The Company shall serve initially as "Security Registrar" for the purpose of
registering Registered Securities and transfers of Registered Securities as
herein provided.

         Upon surrender for registration of transfer of any Registered Security
of any series at the office or agency of the Company maintained pursuant to
Section 1002 for such purpose in a Place of Payment for such series, the
Company shall execute, and the Trustee shall authenticate and deliver, in the
name of the designated transferee or transferees, one or more new Registered
Securities of the same series of any authorized denominations and of a like
aggregate principal amount and tenor.

         At the option of the Holder, Registered Securities of any series may
be exchanged for other Registered Securities of the same series of any
authorized denominations and of a like aggregate principal amount and tenor,
upon surrender of the Securities to be exchanged at any such office or agency.
Whenever any Securities are so surrendered for exchange, the Company shall
execute, and the Trustee shall authenticate and deliver, the Securities which
the Holder making the exchange is entitled to receive.  Unless otherwise
provided with respect to any series of Securities, Bearer Securities may not be
issued in exchange for Registered Securities.

         At the option of the Holder, Bearer Securities of any series may be
exchanged for Registered Securities of the same series of any authorized
denominations and of a like aggregate principal amount and tenor, upon
surrender of the Bearer Securities to be exchanged at any such office or
agency, with all unmatured coupons and all matured coupons in default thereto
appertaining.  If the Holder of a Bearer Security is unable to produce any such
unmatured coupon or coupons or matured coupon or coupons in default, such
exchange may be effected if the Bearer Securities are accompanied by payment in
funds acceptable to the Company in an amount equal to the face amount of such
missing coupon or coupons, or the surrender of such missing coupon or coupons
may be waived by the Company and the Trustee if there is furnished to them such
security or indemnity as they may require to save each of them and any Paying
Agent harmless.  If thereafter the Holder of such Security shall surrender to
any Paying Agent any such missing coupon in respect of which such a payment
shall have been made, such Holder shall be entitled to receive the amount of
such payment; provided, however, that, except as otherwise provided in Section
1002, interest represented by coupons shall be payable only upon presentation
and surrender of those coupons at an office or agency located outside the
United States.  Notwithstanding the foregoing, in case a Bearer Security of any
series is surrendered at any such office or agency in exchange for a Registered
Security of the same series and like tenor after the close of business at such
office or agency on (i) any Regular Record Date and before the opening of
business at such office or agency on the relevant Interest Payment Date, or
(ii) any Special Record Date and before the opening of business at such office
or





                                       22
<PAGE>   29
agency on the related proposed date for payment of Defaulted Interest, such
Bearer Security shall be surrendered without the coupon relating to such
Interest Payment Date or proposed date for payment, as the case may be, and
interest or Defaulted Interest, as the case may be, will not be payable on such
Interest Payment Date or proposed date for payment, as the case may be, in
respect of the Registered Security issued in exchange for such Bearer Security
but will be payable only to the Holder of such coupon when due in accordance
with the provisions of this Indenture.

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

         Notwithstanding the foregoing, except as otherwise specified as
contemplated by Section 301, any permanent global Security shall be
exchangeable only as provided in this paragraph.  If the beneficial owners of
interests in a permanent global Security are entitled to exchange such
interests for Securities of such series and of like tenor and principal amount
of another authorized form and denomination, as specified as contemplated by
Section 301, then without unnecessary delay but in any event not later than the
earliest date on which such interests may be so exchanged, the Company shall
deliver to the Trustee definitive Securities of that series in an aggregate
principal amount equal to the principal amount of such permanent global
Security, executed by the Company.  On or after the earliest date on which such
interests may be so exchanged, such permanent global Security shall be
surrendered from time to time in accordance with instructions given to the
Trustee and the Common Depositary (which instructions shall be in writing but
need not comply with Section 102 or be accompanied by an Opinion of Counsel) by
the Common Depositary or such other depositary or Common Depositary as shall be
specified in the Company Order with respect thereto to the Trustee, as the
Company's agent for such purpose, to be exchanged, in whole or in part, for
definitive Securities of the same series without charge and the Trustee shall
authenticate and deliver, in exchange for each portion of such permanent global
Security, a like aggregate principal amount definitive Securities of the same
series of authorized denominations and of like tenor as the portion of such
permanent global Security to be exchanged which, unless the Securities of the
series are not issuable both as Bearer Securities and as Registered Securities,
as specified as contemplated by Section 301, shall be in the form of Bearer
Securities or Registered Securities, or any combination thereof, as shall be
specified by the beneficial owner thereof; provided, however, that no such
exchanges may occur during a period beginning at the opening of business 15
days before any selection of Securities of that series is to be redeemed and
ending on the relevant Redemption Date; and provided, further, that no Bearer
Security delivered in exchange for a portion of a permanent global Security
shall be mailed or otherwise delivered to any location in the United States.
Promptly following any such exchange in part, such permanent global Security
shall be returned by the Trustee to the Common Depositary or such other
depositary or Common Depositary referred to above in accordance with the
instructions of the Company referred to above.  If a Registered Security is
issued in exchange for any portion of such permanent global Security after the
close of business at the office or agency where such exchange occurs on (i) any
Regular Record Date and before the opening of business at such office or agency
on the relevant Interest Payment Date, or (ii) any Special Record Date and
before the opening of business at such office or agency on the related proposed
date for payment of Defaulted Interest, interest or Defaulted Interest, as the
case may be, will not be payable on such Interest Payment Date or proposed date
for payment, as the case may be, in respect of such





                                       23
<PAGE>   30
Registered Security, but will be payable on such Interest Payment Date or
proposed date for payment, as the case may be, only to the Person to whom
interest in respect of such portion of such permanent global Security is
payable in accordance with provisions of this Indenture.

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

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

         No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any registration of transfer or exchange of Securities, other than
exchanges pursuant to Section 304, 906 or 1107 not involving any transfer.

         The Company shall not be required (i) to issue, register the transfer
of or exchange Securities of any series during a period beginning at the
opening of business 15 days before any selection of Securities of that series
to be redeemed and ending at the close of business on (A) if Securities of the
series are issuable only as Registered Securities, the day of the mailing of
the relevant notice of redemption and (B) if Securities of the series are
issuable as Bearer Securities, the day of the first publication of the relevant
notice of redemption, or if Securities of the series are also issuable as
Registered Securities and there is no publication, the mailing of the relevant
notice of redemption, or (ii) to register the transfer of or exchange any
Registered Security so selected for redemption, in whole or in part, except the
unredeemed portion of any Registered Security being redeemed in part, or (iii)
to exchange any Bearer Security so selected for redemption except that such a
Bearer Security may be exchanged for a Registered Security of that series and
like tenor, provided that such Registered Security shall be simultaneously
surrendered for redemption.

         Notwithstanding the foregoing and except as otherwise specified or
contemplated by Section 301, any Book-Entry Security shall be exchangeable
pursuant to this Section 305 or Sections 304, 906 and 1107 for Securities
registered in the name of, and a transfer of a Book Entry Security of any
series may be registered to, any Person other than the Depository for such
Security or its nominee only if (i) such Depository notifies the Company that
it is unwilling or unable to continue as Depository for such Book-Entry
Security or if at any time such Depository ceases to be a clearing agency
registered under the Securities Exchange Act of 1934, (ii) the Company executes
and delivers to the Trustee a Company Order that such Book-Entry Security shall
be so exchangeable and the transfer thereof so registrable or (iii) there shall
have occurred and be continuing an Event of Default, with respect to the
Securities of such series.  Upon the occurrence in respect of any Book-Entry
Security of any series of any one or more of the conditions specified in clause
(i), (ii) or (iii) of the preceding sentence or such other conditions as may be
specified, such Book-Entry Security may be exchanged for Securities registered
in the names of, and the transfer of such





                                       24
<PAGE>   31
Book-Entry Security may be registered to, such Persons (including Persons other
than the Depository with respect to such series and its nominees) as such
Depository shall direct.  Notwithstanding any other provision of this
Indenture, any Security authenticated and delivered upon registration of
transfer of, or in exchange for, or in lieu of, any Book-Entry Security shall
also be a Book-Entry Security and shall bear the legend specified in Section
204 except for any Security authenticated and delivered in exchange for, or
upon registration of transfer of, a Book-Entry Security pursuant to the
preceding sentence.

SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities and Coupons.

         If any mutilated Security or a Security with a mutilated coupon
appertaining thereto is surrendered to the Trustee, the Company shall execute
and the Trustee shall authenticate and deliver in exchange therefor a new
Security of the same series and of like tenor and principal amount and bearing
a number not contemporaneously outstanding, with coupons corresponding to the
coupons, if any, appertaining to the surrendered Security.

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

         In case any such mutilated, destroyed, lost or stolen Security or
coupon has become or is about to become due and payable, the Company in its
discretion may, instead of issuing a new Security, pay such Security or coupon;
provided, however, that the principal of and any premium and interest on Bearer
Securities shall, except as otherwise provided in Section 1002, be payable only
at an office or agency located outside the United States.

         Upon the issuance of any new Security under this Section, the Company
may require payment of a sum sufficient to cover any tax or other governmental
charge that may be imposed in relation thereto and any other expenses
(including the fees, and expenses of the Trustee) connected therewith.

         Every new Security of any series with its coupons, if any, issued
pursuant to this Section in lieu of any destroyed, lost or stolen Security or
in exchange for a Security to which a destroyed, lost or stolen coupon
appertains, shall constitute an original additional contractual obligation of
the Company, whether or not the destroyed, lost or stolen Security and its
coupons, if any, or the destroyed, lost or stolen coupon shall be at any time
enforceable by anyone, and any such new Security and coupons, if any, shall be
entitled to all the benefits of this Indenture equally and





                                       25
<PAGE>   32
proportionately with any and all other Securities of that series and their
coupons, if any, duly issued hereunder.

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

SECTION 307.  Payment of Interest; Interest Rights Preserved.

         Unless otherwise provided as contemplated by Section 301 with respect
to any series of Securities, interest on any Registered Security which is
payable, and is punctually paid or duly provided for, on any Interest Payment
Date shall be paid to the Person in whose name that Security (or one or more
Predecessor Securities) is registered at the close of business on the Regular
Record Date for such interest.  Unless otherwise so provided, at the option of
the Company, payment of interest on any Registered Security may be made by
check mailed on or before the due date to the address of the Person entitled
thereto as such address shall appear in the Security Register.

         Any interest on any Registered Security of any series which is
payable, but is not punctually paid or duly provided for, on any Interest
Payment Date (herein called "Defaulted Interest") shall forthwith cease to be
payable to the Holder on the relevant Regular Record Date by virtue of having
been such Holder, and such Defaulted Interest may be paid by the Company, at
its election in each case, as provided in clause (1) or (2) below:

                 (1)      The Company may elect to make payment of any
         Defaulted Interest to the Persons in whose names the Registered
         Securities of such series (or their respective Predecessor Securities)
         are registered at the close of business on a Special Record Date for
         the payment of such Defaulted Interest, which shall be fixed in the
         following manner.  The Company shall notify the Trustee in writing of
         the amount of Defaulted Interest proposed to be paid on each
         Registered Security of such series and the date of the proposed
         payment, and at the same time the Company shall deposit with the
         Trustee an amount of money equal to the aggregate amount proposed to
         be paid in respect of such Defaulted Interest or shall make
         arrangements satisfactory to the Trustee for such deposit prior to the
         date of the proposed payment, such money when deposited to be held in
         trust for the benefit of the Persons entitled to such Defaulted
         Interest as in this Clause provided.  Thereupon the Trustee shall fix
         a Special Record Date for the payment of such Defaulted Interest which
         shall be not more than 15 days and not less than 10 days prior to the
         date of the proposed payment and not less than 10 days after the
         receipt by the Trustee of the notice of the proposed payment.  The
         Trustee shall promptly notify the Company of such Special Record Date
         and, in the name and at the expense of the Company, shall cause notice
         of the proposed payment of such Defaulted Interest and the Special
         Record Date therefor to be mailed, first-class postage prepaid, to
         each Holder of Registered Securities of such series at the address of
         such Holder as it appears in the Security Register, not less than 10
         days prior to such Special Record Date.  Notice of the proposed
         payment of such Defaulted Interest and the Special Record Date
         therefor having been so mailed, such Defaulted Interest shall be paid
         to the Persons in whose names the Registered Securities of such series
         (or their respective Predecessor Securities) are registered





                                       26
<PAGE>   33
         at the close of business on such Special Record Date and shall no
         longer be payable pursuant to the following clause (2).

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

         Subject to the foregoing provisions of this Section and Section 305,
each Security delivered under this Indenture upon registration of transfer of
or in exchange for or in lieu of any other Security shall carry the rights to
interest accrued and unpaid, and to accrue, which were carried by such other
Security.

SECTION 308.  Persons Deemed Owners.

         Prior to due presentment of a Registered Security for registration of
transfer, the Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name such Registered Security is registered as
the owner of such Registered Security for the purpose of receiving payment of
principal of (and premium, if any) and (subject to Sections 305 and 307) any
interest on such Security and for all other purposes whatsoever, whether or not
such Security be overdue, and neither the Company, the Trustee nor any agent of
the Company or the Trustee shall be affected by notice to the contrary.

         Title to any Bearer Security and any coupons appertaining thereto
shall pass by delivery.  The Company, the Trustee and any agent of the Company
or the Trustee may treat the bearer of any Bearer Security and the bearer of
any coupon as the owner of such Security or coupon for the purpose of receiving
payment thereof or on account thereof and for all other purposes whatsoever,
whether or not such Security or coupon be overdue, and neither the Company, the
Trustee nor any agent of the Company or the Trustee shall be affected by notice
to the contrary.

         Notwithstanding the foregoing, with respect to any Book-Entry
Security, nothing herein shall prevent the Company, the Trustee, or any agent
of the Company or the Trustee, from giving effect to any written certification,
proxy or other authorization furnished by a Depository or impair, as between a
Depository and holders of beneficial interests in any Book-Entry Security, the
operation of customary practices governing the exercise of the rights of the
Depository (or its nominee) as Holder of such Book-Entry Security.

SECTION 309.  Cancellation.

         All Securities and coupons surrendered for payment, redemption,
registration of transfer or exchange or for credit against any sinking fund
payment shall, if surrendered to any Person other than the Trustee, be
delivered to the Trustee.  All Registered Securities and matured coupons so
delivered shall be promptly canceled by the Trustee.  All Bearer Securities and
unmatured coupons





                                       27
<PAGE>   34
so delivered shall be held by the Trustee and, upon instruction by a Company
Order, shall be canceled or held for reissuance.  Bearer Securities and
unmatured coupons held for reissuance may be reissued only in replacement of
mutilated, lost, stolen or destroyed Bearer Securities of the same series and
like tenor or the related coupons pursuant to Section 306.  All Bearer
Securities and unmatured coupons held by the Trustee pending such cancellation
or reissuance shall be deemed to be delivered for all purposes of this
Indenture and the Securities.  The Company may at any time deliver to the
Trustee for cancellation any Securities previously authenticated and delivered
hereunder which the Company may have acquired in any manner whatsoever, and may
deliver to the Trustee (or to any other Person for delivery to the Trustee) for
cancellation any Securities previously authenticated hereunder which the
Company has not issued and sold, and all Securities so delivered shall be
promptly canceled by the Trustee.  No Securities shall be authenticated in lieu
of or in exchange for any Securities canceled as provided in this Section,
except as expressly permitted by this Indenture.  All canceled Securities and
coupons held by the Trustee shall be disposed of in accordance with its
customary practice.

SECTION 310.  Computation of Interest.

         Except as otherwise specified as contemplated by Section 301 for
Securities of any series, interest on the Securities of each series shall be
computed on the basis of a 360-day year of twelve 30-day months.

                                  ARTICLE FOUR
                           SATISFACTION AND DISCHARGE

SECTION 401.  Satisfaction and Discharge of Indenture.

         This Indenture shall upon Company Request cease to be of further
effect (except as to any surviving rights of registration of transfer or
exchange of Securities herein expressly provided for, and any right to receive
additional amounts, as provided in Section 1004), and the Trustee, at the
expense of the Company, shall execute proper instruments acknowledging
satisfaction and discharge of this Indenture, when

         (1)     either

                 (A)      all Securities theretofore authenticated and
         delivered and all coupons, if any, appertaining thereto (other than
         (i) coupons appertaining to Bearer Securities surrendered for exchange
         for Registered Securities and maturing after such exchange, whose
         surrender is not required or has been waived as provided in Section
         305, (ii) Securities and coupons which have been destroyed, lost or
         stolen and which have been replaced or paid as provided in Section
         306, (iii) coupons appertaining to Securities called for redemption
         and maturing after the relevant Redemption Date, whose surrender has
         been waived as provided in Section 1106, and (iv) Securities and
         coupons for whose payment money has theretofore been deposited in
         trust or segregated and held in trust by the Company and thereafter
         repaid to the Company or discharged from such trust, as provided in
         Section 1003) have been delivered to the Trustee for cancellation; or





                                       28
<PAGE>   35
                 (B)      all such Securities and, in the case of (i) or (ii)
         below, any coupons appertaining thereto not theretofore delivered to
         the Trustee for cancellation

                          (i)     have become due and payable, or

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

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

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

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

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

         Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee under Section 607, the obligations of
the Trustee to any Authenticating Agent under Section 614 and, if money shall
have been deposited with the Trustee pursuant to clause (1)(B) of this Section,
the obligations of the Trustee under Section 402 and the last paragraph of
Section 1003 shall survive.

SECTION 402.  Application of Trust Money.

         Subject to the provisions of the last paragraph of Section 1003, all
money deposited with the Trustee pursuant to Section 401 shall be held in trust
and applied by it, in accordance with the provisions of the Securities, the
coupons and this Indenture, to the payment, either directly or through any
Paying Agent (including the Company acting as its own Paying Agent) as the
Trustee may determine, to the Persons entitled thereto, of the principal and
any premium and interest for whose payment such money has been deposited.





                                       29
<PAGE>   36
                                  ARTICLE FIVE
                                    REMEDIES

SECTION 501.  Events of Default.

         "Event of Default", wherever used herein with respect to Securities of
any series, means any one of the following events (whatever the reason for such
Event of Default and whether it shall be voluntary or involuntary or be
effected by operation of law or pursuant to any judgment, decree or order, rule
or regulation of any administrative or governmental body), unless it is either
inapplicable to a particular series of Securities or it is specifically deleted
or modified in or pursuant to the terms of such series or in the form of
Security of such series:

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

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

                 (3)      default in the deposit of any sinking fund payment,
         when and as due by the terms of a Security of that series; or

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

                 (5)      the entry by a court having jurisdiction in the
         premises of (A) a decree or order for relief in respect of the Company
         in an involuntary case or proceeding under any applicable Federal or
         State bankruptcy, insolvency, reorganization or other similar law or
         (B) a decree or order adjudging the Company a bankrupt or insolvent,
         or approving as properly filed a petition seeking reorganization,
         arrangement, adjustment or composition of or in respect of the Company
         under any applicable Federal or State law, or appointing a custodian,
         receiver, liquidator, assignee, trustee, sequestrator or other similar
         official of the Company or of any substantial part of its property, or
         ordering the winding up or liquidation of its affairs, and the
         continuance of any such decree or order for relief or any such other
         decree or order unstayed and in effect for a period of 90 consecutive
         days; or





                                       30
<PAGE>   37
                 (6)      the commencement by the Company of a voluntary case
         or proceeding under any applicable Federal or State bankruptcy,
         insolvency, reorganization or other similar law or of any other case
         or proceeding to be adjudicated a bankrupt or insolvent, or the
         consent by it to the entry of a decree or order for relief in respect
         of the Company in an involuntary case or proceeding under any
         applicable Federal or State bankruptcy, insolvency, reorganization or
         other similar law or the commencement of any bankruptcy or insolvency
         case or proceeding against it, or the filing by it of a petition or
         answer or consent seeking reorganization or relief under any
         applicable Federal or State law, or the consent by it to the filing of
         such petition or to the appointment of or taking possession by a
         custodian, receiver, liquidator, assignee, trustee, sequestrator or
         similar official of the Company or of any substantial part of its
         property, or the making by it of an assignment for the benefit of
         creditors, or the admission by it in writing of its inability to pay
         its debts generally as they become due, or the taking of corporate
         action by the Company in furtherance of any such action; or

                 (7)      any other Event of Default provided with respect to
         Securities of that series.

SECTION 502.  Acceleration of Maturity; Rescission and Annulment.

         If an Event of Default with respect to Securities of any series at the
time Outstanding occurs and is continuing, then in every such case the Trustee
or the Holders of not less than 25% in principal amount of the Outstanding
Securities of that series may declare the principal amount (or, if any of the
Securities of that series are Original Issue Discount Securities, such portion
of the principal amount of such Securities as may be specified in the terms
thereof) of all of the Securities of that series to be due and payable
immediately, by a notice in writing to the Company (and to the Trustee if given
by Holders), and upon any such declaration such principal amount (or specified
amount) shall become immediately due and payable.

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

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

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

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

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





                                       31
<PAGE>   38
                          (D)     all sums paid or advanced by the Trustee
                 hereunder and the reasonable compensation, expenses,
                 disbursements and advances of the Trustee, its agents and
                 counsel;

         and

                 (2)      all Events of Default with respect to Securities of
         that series, other than the non-payment of the principal of Securities
         of that series which has become due solely by such declaration of
         acceleration, have been cured or waived as provided in Section 513.

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

SECTION 503.  Collection of Indebtedness and Suits for Enforcement by Trustee.

         The Company covenants that if

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

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

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

         If the Company fails to pay such amounts forthwith upon such demand,
the Trustee, in its own name and as trustee of an express trust, may institute
a judicial proceeding for the collection of the sums so due and unpaid, may
prosecute such proceeding to judgment or final decree and may enforce the same
against the Company or any other obligor upon such Securities and collect the
moneys adjudged or decreed to be payable in the manner provided by law out of
the property of the Company or any other obligor upon such Securities, wherever
situated.

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





                                       32
<PAGE>   39
SECTION 504.  Trustee May File Proofs of Claim.

         In case of any judicial proceeding relative to the Company (or any
other obligor upon the Securities), its property or its creditors, the Trustee
shall be entitled and empowered, by intervention in such proceeding or
otherwise, to take any and all actions authorized under the Trust Indenture Act
in order to have claims of the Holders and the Trustee allowed in any such
proceeding.  In particular, the Trustee shall be authorized to collect and
receive any moneys or other property payable or deliverable on any such claims
and to distribute the same; and any custodian, receiver, assignee, trustee,
liquidator, sequestrator or other similar official in any such judicial
proceeding is hereby authorized by each Holder to make such payments to the
Trustee and, in the event that the Trustee shall consent to the making of such
payments directly to the Holders, to pay to the Trustee any amount due it for
the reasonable compensation, expenses, disbursements and advances of the
Trustee, its agents and counsel, and any other amounts due the Trustee under
Section 607.

         No provision of this Indenture shall be deemed to authorize the
Trustee to authorize or consent to or accept or adopt on behalf of any Holder
any plan of reorganization, arrangement, adjustment or composition affecting
the Securities or the rights of any Holder thereof or to authorize the Trustee
to vote in respect of the claim of any Holder in any such proceeding; provided,
however, that the Trustee may, on behalf of Holders, vote for the election of a
trustee of bankruptcy or similar official and be a member of a creditors' or
other similar committee.

SECTION 505.  Trustee May Enforce Claims Without Possession of Securities or
              Coupons.

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

SECTION 506.  Application of Money Collected.

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

                 FIRST:   To the payment of all amounts due the Trustee under 
         Section 607; and

                 SECOND:  To the payment of the amounts then due and unpaid for
         principal of and any premium and interest on the Securities and
         coupons in respect of which or for the benefit of which such money has
         been collected, ratably, without preference or priority of any kind,





                                       33
<PAGE>   40
         according to the amounts due and payable on such Securities and
         coupons for principal and any premium and interest, respectively.

         In any case in which Securities are Outstanding that are denominated
in more than one currency and the Trustee is directed to make ratable payments
under this Section to Holders of such Securities, unless otherwise provided
with respect to any series of Securities, the Trustee shall calculate the
amount of such payments as follows:  (i) as of the day the Trustee collects an
amount under this Article, the Trustee shall, as to each Holder of a Security
to whom an amount is due and payable under this Section that is denominated in
a foreign currency, determine that amount in Dollars that would be obtained for
the amount owing such Holder, using the rate of exchange at which in accordance
with normal banking procedures the Trustee could purchase in The City of New
York Dollars with such amount owing; (ii) calculate the sum of all Dollar
amounts determined under (i) and add thereto any amounts due and payable in
Dollars; and (iii) using the individual amounts determined in (i) or any
individual amounts due and payable in Dollars, as the case may be, as a
numerator, and the sum calculated in (ii) as a denominator, calculate as to
each Holder of a Security to whom an amount is owed under this Section the
fraction of the amount collected under this Article payable to such Holder.
Any expenses incurred by the Trustee in actually converting amounts owing
Holders of Securities denominated in a currency other than that in which any
amount is collected under this Article shall be likewise (in accordance with
this paragraph) borne ratably by all Holders of Securities to whom amounts are
payable under this Section.

         To the fullest extent allowed under applicable law, if for the purpose
of obtaining judgment against the Company in any court it is necessary to
convert the sum due in respect of the principal of, or premium, if any, or
interest on, the Securities of any series (the "Required Currency") into a
currency in which a judgment will be rendered (the "Judgment Currency"), the
rate of exchange used shall be the rate at which in accordance with normal
banking procedures the Trustee could purchase in The City of New York the
Required Currency with the Judgment Currency on the Business Day in The City of
New York next preceding that on which final judgment is given.  Neither the
Company nor the Trustee shall be liable for any shortfall nor shall either of
them benefit from any windfall in payments to Holders of Securities under this
Section caused by a change in exchange rates between the time the amount of a
judgment against the Company is calculated as above and the time the Trustee
converts the Judgment Currency into the Required Currency to make payments under
this Section to Holders of Securities, but payment of such judgment shall
discharge all amounts owed by the Company on the claim or claims underlying such
judgment.

SECTION 507.  Limitation on Suits.

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

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





                                       34
<PAGE>   41
                 (2)      the Holders of not less than 25% in principal amount
         of the Outstanding Securities of that series shall have made written
         request to the Trustee to institute proceedings in respect of such
         Event of Default in its own name as Trustee hereunder;

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

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

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

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

SECTION 508.  Unconditional Right of Holders to Receive Principal, Premium and
              Interest.

         Notwithstanding any other provision in this Indenture, the Holder of
any Security or coupon shall have the right, which is absolute and
unconditional, to receive payment of the principal of and any premium and
(subject to Sections 305 and 307) any interest on such Security or payment of
such coupon on the Stated Maturity or Maturities expressed in such Security or
coupon (or, in the case of redemption, on the Redemption Date) and to institute
suit for the enforcement of any such payment, and such rights shall not be
impaired without the consent of such Holder.

SECTION 509.  Restoration of Rights and Remedies.

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

SECTION 510.  Rights and Remedies Cumulative.

         Except as otherwise provided with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities or coupons in the
last paragraph of Section 306, no right or remedy herein conferred upon or
reserved to the Trustee or to the Holders of Securities or coupons is intended
to be exclusive of any other right or remedy, and every right and remedy shall,
to the





                                       35
<PAGE>   42
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.

SECTION 511.  Delay or Omission Not Waiver.

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

SECTION 512.  Control by Holders of Securities.

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

                 (1)      such direction shall not be in conflict with any rule
         of law or with this Indenture;

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

                 (3)      the Trustee shall not be obligated to take any action
         unduly prejudicial to Holders not joining in such direction or
         involving the Trustee in personal liability.

SECTION 513.  Waiver of Past Defaults.

         The Holders of a majority in principal amount of the Outstanding
Securities of any series may on behalf of the Holders of all the Securities of
such series waive any past default hereunder with respect to the Securities of
such series and its consequences, except a default

                 (1)      in the payment of the principal of or any premium or
         interest on any Security of such series, or

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





                                       36
<PAGE>   43
         Upon any such waiver, such default shall cease to exist, and any Event
of Default arising therefrom shall be deemed to have been cured, for every
purpose of this Indenture; but no such waiver shall extend to any subsequent or
other default or impair any right consequent thereon.

SECTION 514.  Undertaking for Costs.

         In any suit for the enforcement of any right or remedy under this
Indenture, or in any suit against the Trustee for any action taken, suffered or
omitted by it as Trustee, a court may require any party litigant in such suit
to file an undertaking to pay the costs of such suit, and may assess costs
against any such party litigant, in the manner and to the extent provided in
the Trust Indenture Act; provided that neither this Section nor the Trust
Indenture Act shall be deemed to authorize any court to require such an
undertaking or to make such an assessment in any suit instituted by the
Company.

SECTION 515.  Waiver of Stay or Extension Laws.

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

                                  ARTICLE SIX
                                  THE TRUSTEE

SECTION 601.  Certain Duties and Responsibilities.

         The duties and responsibilities of the Trustee shall be as provided by
the Trust Indenture Act.  Notwithstanding the foregoing, no provision of this
Indenture shall require the Trustee to expend or risk its own funds or
otherwise incur any financial liability in the performance of any of its duties
hereunder, or in the exercise of any of its rights or powers, if it shall have
reasonable grounds for believing that repayment of such funds or adequate
indemnity against such risk or liability is not reasonably assured to it.
Whether or not therein expressly so provided, every provision of this Indenture
relating to the conduct or affecting the liability of or affording protection
to the Trustee shall be subject to the provisions of this Section.

SECTION 602.  Notice of Defaults.

         If a default occurs hereunder with respect to Securities of any
series, the Trustee shall give the Holders of Securities of such series notice
of such default as and to the extent provided by the Trust Indenture Act;
provided, however, that in the case of any default of the character specified
in Section 501(4) with respect to Securities of such series, no such notice to
Holders shall be given until at least 30 days after the occurrence thereof.
For the purpose of this Section, the term "default"





                                       37
<PAGE>   44
means any event which is, or after notice or lapse of time or both would
become, an Event of Default with respect to Securities of such series.

SECTION 603.  Certain Rights of Trustee.

         Subject to the provisions of Section 601:

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

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

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

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

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

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

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





                                       38
<PAGE>   45
SECTION 604.  Not Responsible for Recitals or Issuance of Securities.

         The recitals contained herein and in the Securities (except the
Trustee's certificates of authentication) and in any coupons shall be taken as
the statements of the Company, and the Trustee or any Authenticating Agent
assumes no responsibility for their correctness.  The Trustee makes no
representations as to the validity or sufficiency of this Indenture or of the
Securities or coupons.  The Trustee or any Authenticating Agent shall not be
accountable for the use or application by the Company of Securities or the
proceeds thereof.

SECTION 605.  May Hold Securities.

         The Trustee, any Authenticating Agent, any Paying Agent, any Security
Registrar or any other agent of the Company, in its individual or any other
capacity, may become the owner or pledgee of Securities and coupons and,
subject to Sections 608 and 613, may otherwise deal with the Company with the
same rights it would have if it were not Trustee, Authenticating Agent, Paying
Agent, Security Registrar or such other agent.

SECTION 606.  Money Held in Trust.

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

SECTION 607.  Compensation and Reimbursement.

         The Company agrees

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

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

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





                                       39
<PAGE>   46
         As security for the performance of the obligations of the Company
under this Section the Trustee shall have a lien prior to the Securities upon
all property and funds held or collected by the Trustee as such, except funds
held in trust for the benefit of the Holders of particular Securities.

SECTION 608.  Disqualification; 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 and this Indenture.

SECTION 609.  Corporate Trustee Required; Eligibility.

         There shall at all times be a Trustee hereunder which shall be a
corporation organized and doing business under the laws of the United States of
America, any State thereof or the District of Columbia, authorized under such
laws to exercise corporate trust powers, having a combined capital and surplus
of at least $50,000,000, subject to supervision or examination by Federal or
State authority.  If such corporation publishes reports of condition at least
annually, pursuant to law or to the requirements of said supervising or
examining authority, then for the purposes of this Section, the combined
capital and surplus of such corporation shall be deemed to be its combined
capital and surplus as set forth in its most recent report of condition so
published.  If at any time the Trustee shall cease to be eligible in accordance
with the provisions of this Section, it shall resign immediately in the manner
and with the effect hereinafter specified in this Article.  No obligor upon any
Security issued under this Indenture or a person directly or indirectly
controlling, controlled by or under common control with such obligor shall
serve as Trustee under this Indenture.

SECTION 610.  Resignation and Removal; Appointment of Successor.

         (a)      No resignation or removal of the Trustee and no appointment
of a successor Trustee pursuant to this Article shall become effective until
the acceptance of appointment by the successor Trustee in accordance with the
applicable requirements of Section 611.

         (b)     The Trustee may resign at any time with respect to the
Securities of one or more series by giving written notice thereof to the
Company.  If the instrument of acceptance by a successor Trustee required by
Section 611 shall not have been delivered to the Trustee within 30 days after
the giving of such notice of resignation, the resigning Trustee may petition
any court of competent jurisdiction for the appointment of a successor Trustee
with respect to the Securities of such series.

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





                                       40
<PAGE>   47
         (d)     If at any time:

                 (1)      the Trustee shall fail to comply with Section 608
         after written request therefor by the Company or by any Holder of a
         Security who has been a bona fide Holder of a Security for at least
         six months, or

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

                 (3)      the Trustee shall become incapable of acting or shall
         be adjudged a bankrupt or insolvent or a receiver of the Trustee or of
         its property shall be appointed or a public officer shall take charge
         or control of the Trustee or of its property or affairs for the
         purpose of rehabilitation, conservation or liquidation, then, in any
         case, (i) the Company by a Board Resolution may remove the Trustee
         with respect to all Securities, or (ii) subject to Section 514, any
         Holder of a Security who has been a bona fide Holder of a Security for
         at least six months may, on behalf of himself and all others similarly
         situated, petition any court of competent jurisdiction for the removal
         of the Trustee with respect to all Securities and the appointment of a
         successor Trustee or Trustees.

         (e)     If the Trustee shall resign, be removed or become incapable of
acting, or if a vacancy shall occur in the office of the Trustee for any cause,
with respect to the Securities of one or more series, the Company, by a Board
Resolution, shall promptly appoint a successor Trustee or Trustees with respect
to the Securities of that or those series (it being understood that any such
successor Trustee may be appointed with respect to the Securities of one or
more or all series and that at any time there shall be only one Trustee with
respect to the Securities of any particular series) and shall comply with the
applicable requirements of Section 611.  If, within one year after such
resignation, removal or incapability, or the occurrence of such vacancy, a
successor Trustee with respect to the Securities of any series shall be
appointed by Act of the Holders of a majority in principal amount of the
Outstanding Securities of such series delivered to the Company and the retiring
Trustee, the successor Trustee so appointed shall, forthwith upon its
acceptance of such appointment in accordance with the applicable requirements
of Section 611, become the successor Trustee with respect to the Securities of
such series and to that extent supersede the successor Trustee appointed by the
Company.  If no successor Trustee with respect to the Securities of any series
shall have been so appointed by the Company or the Holders of Securities of
such series and accepted appointment in the manner required by Section 611, any
Holder of a Security who has been a bona fide Holder of a Security of such
series for at least six months may, on behalf of himself and all others
similarly situated, petition any court of competent jurisdiction for the
appointment of a successor Trustee with respect to the Securities of such
series.  Such court may thereupon, after such notice, if any, as it may deem
proper, appoint a successor Trustee.

         (f)     The Company shall give notice of each resignation and each
removal of the Trustee with respect to the Securities of any series and each
appointment of a successor Trustee with respect to the Securities of any series
in the manner provided in Section 106.  Each notice shall include the name of
the successor Trustee with respect to the Securities of such series and the
address of its Corporate Trust Office.





                                       41
<PAGE>   48
SECTION 611.  Acceptance of Appointment by Successor.

         (a)     In case of the appointment hereunder of a successor Trustee
with respect to all Securities, every such successor Trustee so appointed shall
execute, acknowledge and deliver to the Company and to the retiring Trustee an
instrument accepting such appointment, and thereupon the resignation or removal
of the retiring Trustee shall become effective and such successor Trustee,
without further act, deed or conveyance, shall become vested with all the
rights, powers, trusts and duties of the retiring Trustee, with like effect as
if originally named Trustee hereunder; but on the request of the Company or the
successor Trustee, such retiring Trustee shall, upon payment of its charges,
execute and deliver an instrument transferring to such successor Trustee all
the rights, powers and trusts of the retiring Trustee and shall duly assign,
transfer and deliver to such successor Trustee all property and money held by
such retiring Trustee hereunder.  Any Trustee ceasing to act shall,
nevertheless, retain a prior lien upon all property or funds held or collected
by such Trustee to secure any amounts then due it pursuant to the provisions of
Section 607.

         (b)     In case of the appointment hereunder of a successor Trustee
with respect to the Securities of one or more (but not all) series, the
Company, the retiring Trustee and each successor Trustee with respect to the
Securities of one or more series shall execute and deliver an indenture
supplemental hereto wherein each successor Trustee shall accept such
appointment and which (1) shall contain such provisions as shall be necessary
or desirable to transfer and confirm to, and to vest in, each successor Trustee
all the rights, powers, trusts and duties of the retiring Trustee with respect
to the Securities of that or those series to which the appointment of such
successor Trustee relates, (2) if the retiring Trustee is not retiring with
respect to all Securities, shall contain such provisions as shall be deemed
necessary or desirable to confirm that all the rights, powers, trusts and
duties of the retiring Trustee with respect to the Securities of that or those
series as to which the retiring Trustee is not retiring shall continue to be
vested in the retiring Trustee, and (3) shall add to or change any of the
provisions of this Indenture as shall be necessary to provide for or facilitate
the administration of the trusts hereunder by more than one Trustee, it being
understood that nothing herein or in such supplemental indenture shall
constitute such Trustees as co-trustees of the same trust and that each such
Trustee shall be trustee of a trust or trusts hereunder separate and apart from
any trust or trusts hereunder administered by any other such Trustee; and upon
the execution and delivery of such supplemental indenture the resignation or
removal of the retiring Trustee shall become effective to the extent provided
therein and each such successor Trustee, without any further act, deed or
conveyance, shall become vested with all rights, powers, trusts and duties of
the retiring Trustee with respect to the Securities of that or those series to
which the appointment of such successor Trustee relates; but, on request of the
Company or any successor Trustee, such retiring Trustee shall duly assign,
transfer and deliver to such successor Trustee all property and money held by
such retiring Trustee hereunder with respect to the Securities of that or those
series to which the appointment of such successor Trustee relates.

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





                                       42
<PAGE>   49
         (d)     No successor Trustee shall accept its appointment unless at
the time of such acceptance such successor Trustee shall be qualified and
eligible under this Article.

SECTION 612.  Merger, Conversion, Consolidation or Succession to Business.

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

SECTION 613.  Preferential Collection of Claims Against Company.

         If and when the Trustee shall be or become a creditor of the Company
(or any other obligor upon the Securities), the Trustee shall be subject to the
provisions of the Trust Indenture Act regarding the collection of claims
against the Company (or any such other obligor).

SECTION 614.  Appointment of Authenticating Agent.

         The Trustee may, by an instrument in writing, appoint an
Authenticating Agent or Agents with respect to one or more series of Securities
which may be authorized to act on behalf of the Trustee to authenticate
Securities of such series issued upon original issue or upon exchange,
registration of transfer or partial redemption thereof or pursuant to Section
306, and Securities so authenticated shall be entitled to the benefits of this
Indenture and shall be valid and obligatory for all purposes as if
authenticated by the Trustee hereunder.  Wherever reference is made in this
Indenture to the authentication and delivery of Securities by the Trustee or
the Trustee's certificate of authentication, such reference shall be deemed to
include authentication and delivery on behalf of the Trustee by an
Authenticating Agent.  Each Authenticating Agent shall be acceptable to the
Company and shall at all times be a corporation organized and doing business
under the laws of the United States of America, any State thereof or the
District of Columbia (or, if Bearer Securities, organized and doing business
under the laws of the country in which the Bearer Securities are eligible),
authorized under such laws to act as Authenticating Agent, having a combined
capital and surplus of not less than $50,000,000 and subject to supervision or
examination by Federal or State authority (or, if Bearer Securities, an
authority of the country in which the Bearer Securities are eligible).  If such
Authenticating Agent publishes reports of condition at least annually, pursuant
to law or to the requirements of said supervising or examining authority, then
for the purposes of this Section, the combined capital and surplus of such
Authenticating Agent shall be deemed to be its combined capital and surplus as
set forth in its most recent report of condition so published.  If at any time
an Authenticating Agent shall cease to be eligible in accordance with the
provisions of this





                                       43
<PAGE>   50
Section, such Authenticating Agent shall resign immediately in the manner and
with the effect specified in this Section.

         Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to the corporate agency or
corporate trust business of such Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation shall be otherwise eligible
under this Section, without the execution or filing of any paper or any further
act on the part of the Trustee or such Authenticating Agent.

         An Authenticating Agent may, and if it shall cease to be eligible
shall, resign at any time by giving written notice thereof to the Trustee and
to the Company.  The Trustee may at any time terminate the agency of an
Authenticating Agent by giving written notice thereof to such Authenticating
Agent and to the Company.  Upon receiving such notice of resignation or upon
such termination, or in case at any time such Authenticating Agent shall cease
to be eligible in accordance with the provisions of this Section, the Trustee
may appoint a successor Authenticating Agent which shall be acceptable to the
Company and shall mail written notice of such appointment by first-class mail,
postage prepaid, to all Holders of Registered Securities, if any, of the series
with respect to which such Authenticating Agent will serve, as their names and
addresses appear in the Security Register.  Any successor Authenticating Agent
upon acceptance of its appointment hereunder shall become vested with all the
rights, powers, and duties of its predecessor hereunder, with like effect as if
originally named as an Authenticating Agent.  No successor Authenticating Agent
shall be appointed unless eligible under the provisions of this Section.

         The Trustee agrees to pay to each Authenticating Agent from time to
time reasonable compensation for its services under this Section, and the
Trustee shall be entitled to be reimbursed for such payment, subject to the
provisions of Section 607.

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

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

                                                             
                                             -----------------------------------
                                                     As Trustee
                                             
                                             By:
                                                --------------------------------
                                                     As Authenticating Agent
                                             
                                             By:
                                                --------------------------------
                                                     Authorized Officer"





                                       44
<PAGE>   51
         If all the Securities of a series may not be originally issued at one
time, and if the Company has an Affiliate eligible to be appointed as an
Authenticating Agent hereunder or the Trustee does not have an office capable
of authenticating Securities upon original issuance located in a Place of
Payment where the Company wishes to have Securities of such series
authenticated upon original issuance, the Trustee, if so requested by the
Company in writing (which writing need not comply with Section 102 and need not
be accompanied by an Opinion of Counsel), shall appoint in accordance with this
Section an Authenticating Agent (which, if so requested by the Company, shall
be such Affiliate of the Company) having an office in a Place of Payment
designated by the Company with respect to such series of Securities.

                                 ARTICLE SEVEN
               HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders.

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

         (a)     semi-annually, not later than 15 days after a Regular Record
Date, a list, in such form as the Trustee may reasonably require, containing
all the information in the possession or control of the Company, or any of its
Paying Agents other than the Trustee, as to the names and addresses of the
Holders of Securities as of the immediately preceding Regular Record Date, and

         (b)     at such other times as the Trustee may request in writing,
within 30 days after the receipt by the Company of any such request, a list of
similar form and content as of a date not more than 15 days prior to the time
such list is furnished;

excluding from any such list names and addresses received by the Trustee in its
capacity as Security Registrar.

SECTION 702.  Preservation of Information:  Communications to Holders.

         (a)     The Trustee shall preserve, in as current a form as is
reasonably practicable, the names and addresses of Holders contained in the
most recent list furnished to the Trustee as provided in Section 701, and the
names and addresses of Holders received by the Trustee in its capacity as
Security Registrar.  The Trustee may destroy any list furnished to it as
provided in Section 701 upon receipt of a new list so furnished.

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

         (c)     Every Holder of Securities or coupons, by receiving and
holding the same, agrees with the Company and the Trustee that neither the
Company nor the Trustee nor any agent of either of them shall be held
accountable by reason of any disclosure of information as to names and





                                       45
<PAGE>   52
addresses of Holders made pursuant to the Trust Indenture Act and that the
Trustee shall not be held accountable by reason of mailing any material
pursuant to a request made under Section 702(b).

SECTION 703.  Reports by Trustee.

         (a)     On or before August 1 in each year following the date hereof,
the Trustee shall transmit to Holders such reports concerning the Trustee and
its actions under this Indenture as may be required pursuant to the Trust
Indenture Act at the times and in the manner provided pursuant thereto.

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

SECTION 704.  Reports by Company.

         In addition to the certificates delivered to the Trustee pursuant to
Section 1007, the Company shall file with the Trustee and the Commission, and
transmit to Holders, such information, documents and other reports, and such
summaries thereof, as may be required pursuant to the Trust Indenture Act at
the times and in the manner provided pursuant to such Act; provided that any
such information, documents or reports required to be filed with the Commission
pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 shall
be filed with the Trustee within 15 days after the same is so required to be
filed with the Commission.

                                 ARTICLE EIGHT
              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms.

         The Company shall not consolidate with or merge into any other Person
or convey, transfer or lease its properties and assets substantially as an
entirety to any Person, unless:

                 (1)      the Person formed by such consolidation or into which
         the Company is merged or the Person which acquires by conveyance or
         transfer, or which leases, the properties and assets of the Company
         substantially as an entirety shall be a corporation, partnership or
         trust and shall expressly assume, by an indenture supplemental hereto,
         executed and delivered to the Trustee, in form satisfactory to the 
         Trustee, the due and punctual payment of the principal of and any
         premium and interest (including all additional amounts, if any, 
         payable pursuant to Section 1004) on all the Securities and the 
         performance or observance of every other covenant of this Indenture 
         on the part of the Company to be performed or observed;





                                       46
<PAGE>   53
                 (2)      immediately after giving effect to such transaction
         and treating any indebtedness which becomes an obligation of the
         Company or a Subsidiary as a result of such transaction as having been
         incurred by the Company or such Subsidiary at the time of such
         transaction, no Event of Default, and no event which, after notice or
         lapse of time or both, would become an Event of Default, shall have
         happened and be continuing; and

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

SECTION 802.  Successor Substituted.

         Upon any consolidation of the Company with, or merger of the Company
into, any other Person or any conveyance, transfer or lease of the properties
and assets of the Company substantially as an entirety in accordance with
Section 801, the successor Person formed by such consolidation or into which
the Company is merged or to which such conveyance, transfer or lease is made
shall succeed to, and be substituted for, and may exercise every right and
power of, the Company under this Indenture with the same effect as if such
successor Person had been named as the Company herein, and thereafter, except
in the case of a lease, the predecessor Person shall be relieved of all
obligations and covenants under this Indenture and the Securities and coupons
and may liquidate and dissolve.

                                  ARTICLE NINE
                            SUPPLEMENTAL INDENTURES

SECTION 901.  Supplemental Indentures without Consent of Holders.

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

                 (1)      to evidence the succession of another Person to the
         Company and the assumption by any such successor of the covenants of
         the Company herein and in the Securities pursuant to Article Eight; or





                                       47
<PAGE>   54
                 (2)      to add to the covenants of the Company for the
         benefit of the Holders of all or any series of Securities (and if such
         covenants are to be for the benefit of less than all series of
         Securities, stating that such covenants are expressly being included
         solely for the benefit of such series) or to surrender any right or
         power herein conferred upon the Company; or

                 (3)      to add any additional Events of Default; or

                 (4)      to add to or change any of the provisions of this
         Indenture to provide that Bearer Securities may be registrable as to
         principal, to change or eliminate any restrictions on the payment of
         principal of or any premium or interest on Bearer Securities, to
         permit Bearer Securities to be issued in exchange for Registered
         Securities, to permit Bearer Securities to be issued in exchange for
         Bearer Securities of other authorized denominations or to permit or
         facilitate the issuance of Securities in uncertificated form, provided
         that any such action shall not adversely affect the interests of the
         Holders of Securities of any series or any related coupons in any
         material respect; or

                 (5)      to add to, change or eliminate any of the provisions
         of this Indenture in respect of one or more series of Securities,
         provided that any such addition, change or elimination (A) shall
         neither (i) apply to any Security of any series created prior to the
         execution of such supplemental indenture and entitled to the benefit
         of such provision nor (ii) modify the rights of the Holder of any such
         Security with respect to such provision or (B) shall become effective
         only when there is no such Security Outstanding; or

                 (6)      to secure the Securities pursuant to the requirements
         of Section 1006 or otherwise; or

                 (7)      to establish the form or terms of Securities of any
         series and any related coupons as permitted by Sections 201 and 301;
         or

                 (8)      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 611(b); or

                 (9)      to cure any ambiguity, to correct or supplement any
         provision herein or in any supplemental indenture which may be
         defective or inconsistent with any other provision herein or in any
         supplemental indenture, or to make any other provisions with respect
         to matters or questions arising under this Indenture; provided, that
         such action shall not adversely affect the interests of the Holders of
         Securities of any series or any related coupons in any material
         respect.





                                       48
<PAGE>   55
SECTION 902.  Supplemental Indentures with Consent of Holders.

         With the consent of the Holders of a majority in principal amount of
the Outstanding Securities of each series affected by such supplemental
indenture, by Act of said Holders delivered to the Company and the Trustee, the
Company, when authorized by a Board Resolution, and the Trustee may enter into
an indenture or indentures supplemental hereto for the purpose of adding any
provisions to or changing in any manner or eliminating any of the provisions of
this Indenture or of modifying in any manner the rights of the Holders of
Securities of such series and any related coupons under this Indenture;
provided, however, that no such supplemental indenture shall, without the
consent of the Holder of each Outstanding Security affected thereby,

                 (1)      change the Stated Maturity of the principal of, or
         any installment of principal of or interest on, any Security, or
         reduce the principal amount thereof or the rate of interest thereon or
         any premium payable upon the redemption thereof, or change the
         Redemption Date thereof, or change any obligation of the Company to
         pay additional amounts pursuant to Section 1004 (except as
         contemplated by Section 801 (1) and permitted by Section 901(1)), or
         reduce the amount of the principal of an Original Issue Discount
         Security that would be due and payable upon a declaration of 
         acceleration of the Maturity thereof pursuant to Section 502 or change
         the coin or currency in which any Security or any premium or interest
         thereon is payable, or change any right of redemption, purchase or
         repayment by the Company at the option of the Holder, or impair the
         right to institute suit for the enforcement of any such payment on or
         after the Stated Maturity thereof (or, in the case of redemption, on
         or after the Redemption Date), or

                 (2)      reduce the percentage in principal amount of the
         Outstanding Securities of any series, the consent of whose Holders is
         required for any such supplemental indenture, or the consent of whose
         Holders is required for any waiver of compliance with certain
         provisions of this Indenture or certain defaults hereunder and their
         consequences provided for in this Indenture, or reduce the
         requirements of Section 1404 for quorum or voting, or

                 (3)      change any obligation of the Company to maintain an
         office or agency in the places and for the purposes specified in
         Section 1002, or

                 (4)      modify any of the provisions of this Section, Section
         513 or Section 1008 except to increase any such percentage or to
         provide that certain other provisions of this Indenture cannot be
         modified or waived without the consent of the Holder of each
         Outstanding Security affected thereby; provided, however, that this
         clause shall not be deemed to require the consent of any Holder of a
         Security or coupon with respect to changes in the references to "the
         Trustee" and concomitant changes in this Section and Section 1008 or
         the deletion of this provision, in accordance with the requirements of
         Sections 611(b) and 901(8).

A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included solely for the
benefit of one or more particular series of Securities, or which modifies the
rights of the Holders of Securities of such series with respect





                                       49
<PAGE>   56
to such covenant or other provision, shall be deemed not to affect the rights
under this Indenture of the Holders of Securities of any other series.

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

SECTION 903.  Execution of Supplemental Indentures.

         In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications thereby
of the trusts created by this Indenture, the Trustee shall be entitled to
receive and (subject to Section 601) shall be fully protected in relying upon,
an Opinion of Counsel stating that the execution of such supplemental indenture
is authorized or permitted by this Indenture.  The Trustee may, but shall not
be obligated to, enter into any such supplemental indenture which affects the
Trustee's own rights, duties or immunities under this Indenture or otherwise.

SECTION 904.  Effect of Supplemental Indentures.

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

SECTION 905.  Conformity with Trust Indenture Act.

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

SECTION 906.  Reference in Securities to Supplemental Indentures.

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





                                       50
<PAGE>   57
                                  ARTICLE TEN
                                   COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest.

         The Company covenants and agrees for the benefit of each series of
Securities that it will duly and punctually pay the principal of and any
premium and interest on the Securities of that series in accordance with the
terms of the Securities, any coupons appertaining thereto and this Indenture.
Unless otherwise specified as contemplated by Section 301 with respect to any
series of Securities, any interest due on Bearer Securities on or before
Maturity shall be payable only upon presentation and surrender of the several
coupons for such interest installments as are evidenced thereby as they
severally mature.

SECTION 1002.  Maintenance of Office or Agency.

         If Securities of a series are issuable only as Registered Securities,
the Company will maintain in each Place of Payment for such series an office or
agency where Securities of that series may be presented or surrendered for
payment, where Securities of that series may be surrendered for registration of
transfer or exchange and where notices and demands to or upon the Company in
respect of the Securities of that series and this Indenture may be served.  If
Securities of a series are issuable as Bearer Securities, the Company will
maintain (A) in the Borough of Manhattan, The City of New York, an office or
agency where any Registered Securities of that series may be presented or
surrendered for payment, where any Registered Securities of that series may be
surrendered for registration of transfer, where Securities of that series may
be surrendered for exchange, where notices and demands to or upon the Company
in respect of the Securities of that series and this Indenture may be served
and where Bearer Securities of that series and related coupons may be presented
or surrendered for payment in the circumstances described in the following
paragraph (and not otherwise), (B) subject to any laws or regulations
applicable thereto, in a Place of Payment for that series which is located
outside the United States, an office or agency where Securities of that series
and related coupons may be presented and surrendered for payment (including
payment of any additional amounts payable on Securities of that series pursuant
to Section 1004); provided, however, that if the Securities of that series are
listed on The International Stock Exchange of the United Kingdom and the
Republic of Ireland Limited, the Luxembourg Stock Exchange or any other stock
exchange located outside the United States and such stock exchange shall so
require, the Company will maintain a Paying Agent for the Securities of that
series in London, Luxembourg or any other required city located outside the
United States, as the case may be, so long as the Securities of that series are
listed on such exchange, and (C) subject to any laws or regulations applicable
thereto, in a Place of Payment for that series located outside the United
States an office or agency where any Registered Securities of that series may
be surrendered for registration of transfer, where Securities of that series
may be surrendered for exchange and where notices and demands to or upon the
Company in respect of the Securities of that series and this Indenture may be
served.  The Company will give prompt written notice to the Trustee and prompt
notices to the Holders as provided in Section 106 of the location, and any
change in the location, of any such office or agency.  If at any time the
Company shall fail to maintain any such required office or agency in respect of
any series of Securities or shall fail to furnish the Trustee with the address
thereof, such presentations and





                                       51
<PAGE>   58
surrenders of Securities of that series may be made and notices and demands may
be made or served at the Corporate Trust Office of the Trustee, except that
Bearer Securities of that series and the related coupons may be presented and
surrendered for payment (including payment of any additional amounts payable on
Bearer Securities of that series pursuant to Section 1004) at any Paying Agent
for such series located outside the United States, and the Company hereby
appoints the same as its agents to receive such respective presentations,
surrenders, notices and demands.

         No payment of principal, premium or interest on Bearer Securities
shall be made at any office or agency of the Company in the United States or by
check mailed to any address in the United States or by transfer to an account
maintained with a bank located in the United States provided, however, that, if
the Securities of a series are denominated and payable in Dollars, payment of
principal of and any premium and interest on any Bearer Security (including any
additional amounts payable on Securities of such series pursuant to Section
1004) shall be made at the office of the Company's Paying Agent in the Borough
of Manhattan, The City of New York, if (but only if) payment in Dollars of the
full amount of such principal, premium, interest or additional amounts, as the
case may be, at all offices or agencies outside the United States maintained
for the purpose by the Company in accordance with this Indenture is illegal or
effectively precluded by exchange controls or other similar restrictions.

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

SECTION 1003.  Money for Securities Payments to Be Held in Trust.

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

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





                                       52
<PAGE>   59
         The Company will cause each Paying Agent for any series of Securities
(other than the Company or the Trustee) to execute and deliver to the Trustee
an instrument in which such Paying Agent shall agree with the Trustee, subject
to the provisions of this Section, that such Paying Agent will (i) comply with
the provisions of the Trust Indenture Act applicable to it as a Paying Agent
and (ii) during the continuance of any default by the Company (or any other
obligor upon the Securities of that series) in the making of any payment in
respect of the Securities of that series, and upon the written request of the
Trustee, forthwith pay to the Trustee all sums held in trust by such Paying
Agent for payment in respect of the Securities of that series.

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

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

SECTION 1004.  Additional Amounts.

         If the Securities of a series provide for the payment of additional
amounts, the Company will pay to the Holder of any Security of such series or
any coupon appertaining thereto additional amounts as provided therein.
Whenever in this Indenture there is mentioned, in any context, the payment of
the principal of or any premium or interest on, or in respect of, any Security
of any series or payment of any related coupon or the net proceeds received on
the sale or exchange of any Security of any series, such mention shall be
deemed to include mention of the payment of additional amounts provided for in
this Section to the extent that, in such context, additional amounts are, were
or would be payable in respect thereof pursuant to the provisions of this
Section and express mention of the payment of additional amounts (if
applicable) in any provisions hereof shall not be construed as excluding
additional amounts in those provisions hereof where such express mention is not
made.





                                       53
<PAGE>   60
         If the Securities of a series provide for the payment of additional
amounts, at least 10 days prior to the first Interest Payment Date with respect
to that series of Securities (or if the Securities of that series will not bear
interest prior to Maturity, the first day on which a payment of principal and
any premium is made), and at least 10 days prior to each date of payment of
principal and any premium or interest if there has been any change with respect
to the matters set forth in the below-mentioned Officers' Certificate, the
Company will furnish the Trustee and the Company's principal Paying Agent or
Paying Agents, if other than the Trustee, with an Officers' Certificate
instructing the Trustee and such Paying Agent or Paying Agents whether such
payment of principal of and any premium or interest on the Securities of that
series shall be made to Holders of Securities of that series or any related
coupons who are United States Aliens without withholding for or on account of
any tax, assessment or other governmental charge described in the Securities of
that series.  If any such withholding shall be required, then such Officers'
Certificate shall specify by country the amount, if any, required to be
withheld on such payments to such Holders of Securities or coupons and the
Company will pay to the Trustee or such Paying Agent the additional amounts
required by this Section.  The Company covenants to indemnify the Trustee and
any Paying Agent for, and to hold them harmless against, any loss, liability or
expense reasonably incurred without negligence or bad faith on their part
arising out of or in connection with actions taken or omitted by any of them in
reliance on any Officers' Certificate furnished pursuant to this Section.

SECTION 1005.  Purchase of Securities by Company or Subsidiary.

         If and so long as the Securities of a series are listed on The
International Stock Exchange of the United Kingdom and the Republic of Ireland
Limited and such stock exchange shall so require, the Company will not, and
will not permit any of its Subsidiaries to, purchase any Securities of that
series by private treaty at a price (exclusive of expenses and accrued
interest) which exceeds 120% of the mean of the nominal quotations of the
Securities of that series as shown in The Stock Exchange Daily Official List
for the last trading day preceding the date of purchase.

SECTION 1006.  Statement by Officer as to Default.

         The Company will deliver to the Trustee, within 120 days after the end
of each fiscal year of the Company ending after the date hereof, a brief
certificate from the principal executive officer, principal financial officer
or principal accounting officer as to his or her knowledge of the Company's
compliance with all conditions and covenants under this Indenture.  For
purposes of this Section 1006, such compliance shall be determined without
regard to any period of grace or requirement of notice under this Indenture.

SECTION 1007.  Waiver of Certain Covenants.

         The Company may omit in any particular instance to comply with any
term, provision or condition set forth in Section 1005 with respect to the
Securities of any series if before the time for such compliance the Holders of
a majority in principal amount of the Outstanding Securities of such series
shall, by Act of such Holders, either waive such compliance in such instance or
generally waive compliance with such term, provision or condition, but no such
waiver shall extend to or affect such term, provision or condition except to
the extent so expressly waived, and, until such waiver shall become effective,
the obligations of the Company and the duties of the Trustee in respect of 
any such term, provision or condition shall remain in full force and effect.




                                       54
<PAGE>   61
SECTION 1008. Limitation on Liens. 

        Unless established in or pursuant to a Board Resolution and, subject 
to Section 303, set forth in or determined in the manner provided, in an
Officers' Certificate, or established in one or more indentures supplemental
hereto, prior to the issuance of Securities of any series, the provisions of
this Section 1008 shall apply to each series of Securities issued under this
Indenture:

        (a) The Company will not, and will not permit any of its Restricted
Subsidiaries to, create, incur, assume or suffer to exist, directly or
indirectly, any Indebtedness secured by a Security Interest upon any Principal
Property of the Company or of a Restricted Subsidiary, whether owned as of the
date of this Indenture or hereafter acquired, without making effective
provision (and the Company hereby convenants that in any such case it shall
make or cause to be made effective provision) whereby the Securities of that
series then outstanding and any other Indebtedness of the Company or any
Restricted Subsidiary then entitled thereto shall be secured by such Security
Interest equally and ratably with (or, in the case of the Securities of that
series and if the Company shall so determine, prior to) any and all other
Indebtedness of the Company or any Restricted Subsidiary thereby secured for so
long as any such other Indebtedness of the Company or any Restricted Subsidiary
shall be so secured; provided, that nothing in this Section 1008 shall prevent,
restrict or apply to Indebtedness secured by:

        (1) (a) Any Security Interest upon property or assets which is created
prior to or contemporaneously with, or within 360 days after, (i) in the case
of the acquisition of such property or assets, the completion of such
acquisition and (ii) in the case of the construction, development or
improvement of such property or assets, the later to occur of the completion of
such construction, development or improvement or the commencement of operation
or use of the property or assets, which Security Interest secures or provides
for the payment, financing or refinancing, directly or indirectly, of all or any
part of the acquisition cost of such property or assets or the cost of
construction, development or improvement thereof; or (b) any Security Interest
upon property or assets existing at the time of the acquisition thereof, which
Security Interest secures obligations assumed by the Company or any Restricted
Subsidiary; or (c) any conditional sales agreement or other title retention
agreement with respect to any property or assets acquired by the Company or any
Restricted Subsidiary; or (d) any Security Interest existing on the property or
assets or shares of stock of a corporation or firm at the time such corporation
or firm is merged into or consolidated with the Company or any Restricted
Subsidiary or at the time of a sale, lease or other disposition of the property
or assets of such corporation or firm as an entirety or substantially as an
entirety to the Company or any Restricted Subsidiary or at the time such
corporation becomes a Restricted Subsidiary; or (e) any Security Interest
existing on the property, assets or shares of stock of any successor which shall
have become the Company in accordance with the provisions of Section 801 hereof;
provided, in each case, that any such Security Interest described in the
foregoing clauses (b), (c), (d) or (e) does not attach to or affect property or
assets owned by the Company or any Restricted Subsidiary prior to the event
referred to in such clauses; or 

        (2) Mechanics', materialmen's, carriers' or other like liens arising in
the ordinary course of business (including construction of facilities) in
respect of obligations which are not due or which are being contested in good
faith; or

        (3) Any Security Interest arising by reason of deposits with, or the
giving of any form of security to, any governmental agency or any body created
or approved by law or governmental regulation, which is required by law or
governmental regulation as a condition to the transaction of any business or the
exercise of any privilege, franchise or license (including, without limitation,
any Security Interest arising by reason of one or more letters of credit in
connection with any international waste management contract to be performed by
the Company or any of its Subsidiaries or their respective affiliates); or 


                                      55
<PAGE>   62
        (4) Security Interests for taxes, assessments or governmental charges
or levies not yet delinquent or Security Interests for taxes, assessments or
governmental charges or levies already delinquent but the validity of which is
being contested in good faith; or

        (5) Security Interests (including judgment liens) arising in connection
with legal proceedings so long as such proceedings are being contested in good
faith and, in the case of judgment liens, execution thereon is stayed; or

        (6) Landlords' liens on fixtures located on premises leased by the
Company or any Restricted Subsidiary in the ordinary course of business; or

        (7) Any Security Interest in favor of any governmental authority in
connection with the financing of the cost of construction or acquisition of
property; or

        (8) Any Security Interest arising by reason of deposits to qualify the
Company or any Restricted Subsidiary to conduct business, to maintain
self-insurance, or to obtain the benefit of, or comply with, laws; or 

        (9) Any Security Interest that secures any Indebtedness of a
Restricted Subsidiary owing to the Company or another Restricted Subsidiary 
or by the Company to a Restricted Subsidiary; or

        (10) Any Security Interest incurred in connection with pollution 
control, sewage or solid waste disposal, industrial revenue or similar
financing; or

        (11) Any Security Interest created by any program providing for the
financing, sale or other disposition of trade or other receivables qualified as
current assets in accordance with United States generally accepted accounting
principles entered into by the Company or by any Restricted Subsidiary, provided
that such program is on terms comparable for similar transactions, or any
document executed by the Company or any Restricted Subsidiary in connection
therewith, and provided that such Security Interest is limited to the trade or
other receivables in respect of which such program is created or exists and the
proceeds thereof; or

        (12) Any extension, renewal or refunding (or successive extensions,
renewals or refundings) in whole or in part of any Indebtedness secured by any
Security Interest referred to in the foregoing clauses (1) through (11),
inclusive, provided that the Security Interest securing such Indebtedness shall
be limited to the property or assets which, immediately prior to such
extension, renewal or refunding, secured such Indebtedness and additions to
such property or assets.

        Notwithstanding the foregoing provisions of this Section 1008(a), the
Company or any of its Restricted Subsidiaries may create, incur, assume or
suffer to exist any Indebtedness secured by a Security Interest without so
securing the Securities of that series if, at the time such Security Interest
becomes a Security Interest upon any Principal Property of the Company or such
Restricted Subsidiary and after giving effect thereto, the aggregate
outstanding principal amount of all Indebtedness of the Company and its
Restricted Subsidiaries secured by Security Interests permitted by this
sentence (excluding Indebtedness secured by a Security Interest existing as of
the date of this Indenture, but including the Attributable Debt in respect of
Sale and Leaseback Transactions (as defined in Section 1009), other than Sale
and Leaseback Transactions which, if the Attributable Debt in respect thereof
had been Indebtedness secured by a Security Interest, would have been permitted
by clause (1)(a) above, other Sale and Leaseback Transactions the proceeds of
which have been applied or committed to be applied in accordance with Section
1009(b) or Section 1009(c) and other than Sale and Leaseback Transactions
between the Company and any Restricted Subsidiary) does not exceed 15% of 
Consolidated Net Tangible Assets.


                                      56
<PAGE>   63
        The term "Attributable Debt" shall mean, as of any particular time, the
present value, discounted at a rate per annum equal to (i) the implied lease
rate of or (ii) if the implied lease rate is not known to the Company, then the
weighted average interest rate of all Securities outstanding at the time under
this Indenture compounded semi-annually, in either case, of the obligation of a
lessee for rental payments during the remaining term of any lease (including
any period for which such lease has been extended or may, at the option of the
lessor, be extended); the net amount of rent required to be paid for any such
period shall be the total amount of the rent payable by the lessee with respect
to such period but may exclude amounts required to be paid on account of
maintenance and repairs, insurance, taxes, assessments, water rates and similar
charges; and, in the case of any lease which is terminable by the lessee upon
the payment of a penalty, such net amount shall also include the amount of such
penalty, but no rent shall be considered as required to be paid under such lease
subsequent to the first date upon which it may be so terminated.

       The term "Consolidated Net Tangible Assets" shall mean, at any date of
determination, the total amount of assets of the Company after deducting
therefrom: (i) all the current liabilities (excluding (a) any current
liabilities that by their terms are extendible or renewable at the option of the
obligor thereon to a time more than 12 months after the time as of which the
amount thereof is being computed, and (b) current maturities of long term debt)
and (ii) the value (net of any applicable reserves) of all intangible assets
such as excess of cost over net assets of acquired businesses, customer lists,
covenants not to compete, licenses, and permits, all as set forth on the
consolidated balance sheet of the Company and its consolidated Subsidiaries for
the Company's most recently completed fiscal quarter, prepared in accordance
with United States generally accepted accounting principles.

        The term "Guaranty" shall mean any agreement, undertaking or arrangement
by which any Person guarantees, endorses or otherwise becomes or is
contingently liable upon (by direct or indirect agreement, contingent or
otherwise, to provide funds for payment, to supply funds to, or otherwise to
invest in, a debtor, or otherwise to assure a creditor against loss) the debt,
obligation or other liability of any other Person (other than by endorsements
of instruments in the course of collection), or guarantees the payment of
dividends or other distributions upon the shares of any other Person. The
amount of the obligor's obligation under any Guaranty shall (subject to any
limitation set forth therein) be deemed to be the amount of such other Person's
debt, obligation or other liability or the amount of such dividends or other
distributions guaranteed.

        The term "Indebtedness" of any Person shall mean

        (a) all obligations of such Person for borrowed money (including,
without limitation, all notes payable and drafts accepted representing
extension of credit and all obligations evidenced by bonds, debentures, notes
or other similar instruments) or on which interest charges are customarily
paid, all as shown on a balance sheet of such Person as of the date at which
Indebtedness is to be determined;

        (b) all other items which, in accordance with generally accepted
accounting principles, would be included as liabilities on the liability side
of a balance sheet of such Person as of the date at which Indebtedness is to be
determined; and

        (c) whether or not so included as liabilities in accordance with
generally accepted accounting principles,         

                (i) all indebtedness (excluding, however, prepaid interest
thereon) secured by a Security Interest in property owned or being purchased by
such Person (including, without limitation, indebtedness arising under
conditional sales or other title retention agreements) whether or not such
indebtedness shall have been assumed by such Person, and

                (ii) all Guaranties of such Person.


                                      57
<PAGE>   64
        The term "Principal Property" shall mean any waste processing, waste 
disposal or resource recovery plant or similar facility located within the
United States (other than its territories and possessions and Puerto Rico) or
Canada and owned by, or leased to, the Company or any Restricted Subsidiary,
except (a) any such plant or facility (i) owned or leased jointly or in common
with one or more persons other than the Company and its Restricted Subsidiaries
in which the interest of the Company and its Restricted Subsidiaries does not
exceed 50%, or (ii) which the Board of Directors determines in good faith is
not of material importance to the total business conducted, or assets owned, by
the Company and its Subsidiaries as an entirety, or (b) any portion of such
plant or facility which the Board of Directors determines in good faith not to
be of material importance to the use or operation thereof.

        The term "Restricted Subsidiary" shall mean any Subsidiary (other than
any Subsidiary of which the Company owns directly or indirectly less than all
of the outstanding Voting Stock) (a) principally engaged in, or whose principal
assets consist of property used by the Company or any Restricted Subsidiary in,
the storage, collection, transfer, interim processing or disposal of waste
within the United States of America or Canada, or (b) which the Company shall
designate as a Restricted Subsidiary in an Officers' Certificate delivered to
the Trustee.

        The term "Security Instrument" shall mean any security agreement,
chattel mortgage, assignment, financing or similar statement or notice,
continuation statement, other agreement or instrument, or amendment or
supplement to any thereof, providing for, evidencing or perfecting any Security
Interest or lien.

        The term "Security Interest" shall mean any interest in any real or
personal property or fixture which secures payment or performance of an
obligation and shall include any mortgage, lien, encumbrance, charge or other
security interest of any kind, whether arising under a Security Instrument or
as a matter of law, judicial process or otherwise.

        (b) If, upon any consolidation or merger of any Restricted Subsidiary
with or into any other corporation, or upon any consolidation or merger of any
other corporation with or into the Company or any Restricted Subsidiary or
upon any sale or conveyance of the Principal Property of any Restricted
Subsidiary as an entirety or substantially as an entirety to any other Person,
or upon any acquisition by the Company or any Restricted Subsidiary by purchase
or otherwise of all or any part of the Principal Property of any other Person,
any Principal Property theretofore owned by the Company or such Restricted
Subsidiary would thereupon become subject to any Security Interest not
permitted by the terms of this Section 1008, the Company, prior to such
consolidation, merger, sale or conveyance, or acquisition, will, or will cause
such Restricted Subsidiary to, secure payment of the principal of and interest,
if any, on the Securities of that series (equally and ratably with or prior to
any other Indebtedness of the Company or such Restricted Subsidiary then
entitled thereto) by a direct lien on all such Principal Property prior to all
liens other than any liens theretofore existing thereon by supplemental
indenture hereto or otherwise.

        (c) If at any time the Company or any Restricted Subsidiary shall
create, incur, assume or suffer to exist any Indebtedness secured by any
Security Interest not permitted by this Section 1008, to which the convenant in
the first paragraph of Section 1008(a) or Section 1008(b) is applicable, the
Company will promptly deliver to the Trustee




                                      58
<PAGE>   65
                (1) an Officers' Certificate stating that the covenant of the
Company contained in the first paragraph of Section 1008(a) or Section 1008(b)
has been complied with; and 

                (2) an Opinion of Counsel to the effect that such covenant
has been complied with, and that any instruments executed by the Company in the
performance of such covenant comply with the requirements of such covenant.

        (d) In the event that the Company shall hereafter secure the Securities
equally and ratably with or prior to any other obligation or indebtedness
pursuant to the provisions of this Section 1008, the Trustee is hereby
authorized to enter into an indenture or agreement supplemental hereto and to
take such action, if any, as it may deem advisable to enable it to enforce
effectively the rights of the Holders of the Securities so secured, equally and
ratably with or prior to such other obligations or indebtedness.

SECTION 1009. Limitations On Sale And Leaseback Transactions. 

        Unless established in or pursuant to a Board Resolution and, subject 
to Section 303, set forth in or determined in the manner provided, in an
Officers' Certificate, or established in one or more indentures supplemental
hereto, prior to the issuance of Securities of any series, the provisions of
this Section 1009 shall apply to each series of Securities issued under this
Indenture:              

        The Company will not, and will not permit any Restricted Subsidiary 
to, enter into any arrangement with any Person (other than with any Restricted
Subsidiary) providing for the leasing to the Company or any Restricted
Subsidiary of any Principal Property owned or hereafter acquired by the Company
or such Restricted Subsidiary (except for temporary leases for a term, including
any renewal thereof, of not more than three years and except for leases between
the Company and a Restricted Subsidiary or between Restricted Subsidiaries),
which Principal Property has been or is to be sold or transferred by the Company
or such Restricted Subsidiary to such person (herein referred to as a "Sale and
Leaseback Transaction") unless (a) the Company or such Restricted Subsidiary
would be entitled, pursuant to the provisions of (1) clause (1)(a) of Section
1008(a) or (2) the second paragraph of Section 1008(a), to incur Indebtedness
secured by a Security Interest on the property to be leased without equally and
ratably securing the Securities of that series, or (b) the Company shall, and in
any such case the Company covenants that it will, within 180 days after the
effective date of any such arrangement, apply an amount equal to the fair value
(as determined by the Board of Directors) of such property to the redemption of
Securities that, by their terms, are subject to redemption, or to the purchase
and retirement of Securities, or to the payment or other retirement of funded
debt for money borrowed, incurred or assumed by the Company which ranks senior
to or pari passu with the Securities of that series or of funded debt for money
borrowed, incurred or assumed by any Restricted Subsidiary (other than, in
either case, funded debt owned by the Company or any Restricted Subsidiary), or
(c) the Company shall within 180 days after entering into the Sale and Leaseback
Transaction, enter into a bona fide commitment or commitments to expend for the
acquisition or capital improvement of a Principal Property an amount at least
equal to the fair value (as determined by the Board of Directors) of such
property. Funded Debt means any Indebtedness which by its terms matures at or is
extendable or renewable at the sole option of the obligor without requiring the
consent of the obligee to a date more than twelve months after the date of the
creation of such Indebtedness. 

         Notwithstanding the foregoing, the Company may, and may permit any
Restricted Subsidiary to, effect any Sale and Leaseback Transaction that is not
acceptable pursuant to clauses (a) through (c), inclusive, of this Section 1009,
provided that the Attributable Debt associated with such Sale and Leaseback
Transaction, together with the aggregate principal amount of outstanding debt
secured by Security Interests upon Principal Property not acceptable pursuant to
clauses (1) through (12) of Section 1008, inclusive, do not exceed 15% of 
Consolidated Net Tangible Assets. 




                                       59
<PAGE>   66

                                 ARTICLE ELEVEN
                            REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article.

         Securities of any series which are redeemable before their Stated
Maturity shall be redeemable in accordance with their terms and (except as
otherwise specified as contemplated by Section 301 for Securities of any
series) in accordance with this Article.

SECTION 1102.  Election to Redeem; Notice to Trustee.

         The election of the Company to redeem any Securities shall be
evidenced by a Board Resolution.  In the case of any redemption at the election
of the Company of less than all the Securities of any series, the Company
shall, at least 45 days prior to the Redemption Date fixed by the Company
(unless a shorter notice shall be satisfactory to the Trustee), notify the
Trustee of such Redemption Date, of the principal amount of Securities of such
series to be redeemed and, if applicable, of the tenor of the Securities of
such series to be redeemed.  In the case of any redemption of Securities (i)
prior to the expiration of any restriction on such redemption provided in the
terms of such Securities or elsewhere in this Indenture, or (ii) pursuant to an
election of the Company which is subject to a condition specified in the terms
of such Securities, the Company shall furnish the Trustee with an Officers'
Certificate evidencing compliance with such restriction or condition.

SECTION 1103.  Selection of Securities to Be Redeemed.

         If less than all the Securities of any series are to be redeemed
(unless all of the Securities of such series of a specified tenor are to be
redeemed) the particular Securities to be redeemed shall be selected not more
than 45 days prior to the Redemption Date by the Company or the Trustee, from
the Outstanding Securities of such series not previously called for redemption,
by such method as the Company or the Trustee shall deem fair and appropriate
and which may provide for the selection for redemption of portions (equal to
the minimum authorized denomination for Securities of that series or any
integral multiple thereof) of the principal amount of Registered Securities of
such series of a denomination larger than the minimum authorized denomination
for Securities of that series or of the principal amount of global Securities
of such series.  If less than all of the Securities of such series and of a
specified tenor are to be redeemed, the particular Securities to be redeemed
shall be selected not more than 45 days prior to the Redemption Date by the
Company or the Trustee, from the Outstanding Securities of such series and
specified tenor not previously called for redemption in accordance with the
preceding sentence.

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





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<PAGE>   67
         For all purposes of this Indenture, unless the context otherwise
requires, all provisions relating to the redemption of Securities shall relate,
in the case of any Securities redeemed or to be redeemed only in part, to the
portion of the principal amount of such Securities which has been or is to be
redeemed.

SECTION 1104.  Notice of Redemption.

         Notice of redemption shall be given in the manner provided in Section
106 to the Holders of Securities to be redeemed not less than 30 or more than
45 days prior to the Redemption Date.

         All notices of redemption shall state:

                 (1)      the Redemption Date,

                 (2)      the Redemption Price,

                 (3)      if less than all the Outstanding Securities of any
         series are to be redeemed, the identification (and, in the case of
         partial redemption of any Securities, the principal amounts) of the
         particular Securities to be redeemed, and that on and after the
         Redemption Date, upon surrender of the Securities, new Securities of
         such series in principal amount equal to the unredeemed part thereof
         will be issued,

                 (4)      that on the Redemption Date the Redemption Price will
         become due and payable upon each such Security to be redeemed and, if
         applicable, that interest thereon will cease to accrue on and after
         said date,

                 (5)      the place or places where such Securities, together
         in the case of Bearer Securities with all coupons appertaining
         thereto, if any, maturing after the Redemption Date, are to be
         surrendered for payment of the Redemption Price, and

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

A notice of redemption published as contemplated by Section 106 need not
identify particular Registered Securities to be redeemed.

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

SECTION 1105.  Deposit of Redemption Price.

         On or prior to any Redemption Date, the Company shall deposit with the
Trustee or with a Paying Agent (or, if the Company is acting as its own Paying
Agent, segregate and hold in trust as provided in Section 1003) an amount of
money sufficient to pay the Redemption Price of, and





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<PAGE>   68
(except if the Redemption Date shall be an Interest Payment Date) accrued
interest on, all the Securities which are to be redeemed on that date.

SECTION 1106.  Securities Payable on Redemption Date.

         Notice of redemption having been given as aforesaid, the Securities so
to be redeemed shall, on the Redemption Date, become due and payable at the
Redemption Price therein specified, and from and after such date (unless the
Company shall default in the payment of the Redemption Price and accrued
interest) such Securities shall cease to bear interest and the coupons for such
interest appertaining to any Bearer Securities so to be redeemed, except to the
extent provided below, shall be void.  Upon surrender of any such Security for
redemption in accordance with said notice, together with all coupons, if any,
appertaining thereto maturing after the Redemption Date, such Security shall be
paid by the Company at the Redemption Price, together with accrued interest to
the Redemption Date; provided, however, that installments of interest on Bearer
Securities whose Stated Maturity is on or prior to the Redemption Date shall be
payable only at an office or agency located outside the United States (except
as otherwise provided in Section 1002) and, unless otherwise specified as
contemplated by Section 301, only upon presentation and surrender of coupons
for such interest, and provided, further, that, unless otherwise specified as
contemplated by Section 301, installments of interest on Registered Securities
whose Stated Maturity is on or prior to the Redemption Date shall be payable to
the Holders of such Securities, or one or more Predecessor Securities,
registered as such at the close of business on the relevant Record Dates
according to their terms and the provisions of Section 307.

         If any Bearer Security surrendered for redemption shall not be
accompanied by all appurtenant coupons maturing after the Redemption Date, such
Security may be paid after deducting from the Redemption Price an amount equal
to the face amount of all such missing coupons, or the surrender of such
missing coupon or coupons may be waived by the Company and the Trustee if there
be furnished to them such security or indemnity as they may require to save
each of them and any Paying Agent harmless.  If thereafter the Holder of such
Security shall surrender to the Trustee or any Paying Agent any such missing
coupon in respect of which a deduction shall have been made from the Redemption
Price, such Holder shall be entitled to receive the amount so deducted;
provided, however, that interest represented by coupons shall be payable only
at an office or agency located outside the United States (except as otherwise
provided in Section 1002) and, unless otherwise specified as contemplated by
Section 301, only upon presentation and surrender of those coupons.

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

SECTION 1107.  Securities Redeemed in Part.

         Any Registered Security which is to be redeemed only in part shall be
surrendered at a Place of Payment thereof (with, if the Company or the Trustee
so requires, due endorsement by, or a written instrument of transfer in form
satisfactory to the Company and the Trustee duly executed by,





                                       62
<PAGE>   69
the Holder thereof or his attorney duly authorized in writing), and the Company
shall execute, and the Trustee shall authenticate and deliver to the Holder of
such Security without service charge, a new Registered Security or Securities
of the same series and of like tenor, of any authorized denomination as
requested by such Holder, in aggregate principal amount equal to and in
exchange for the unredeemed portion of the principal of the Security so
surrendered.

                                 ARTICLE TWELVE
                                 SINKING FUNDS

SECTION 1201.  Applicability of Article.

         The provisions of this Article shall be applicable to any sinking fund
for the retirement of Securities of a series except as otherwise specified as
contemplated by Section 301 for Securities of such series.

         The minimum amount of any sinking fund payment provided for by the
terms of Securities of any series is herein referred to as a "mandatory sinking
fund payment", and any payment in excess of such minimum amount provided for by
the terms of Securities of any series is herein referred to as an "optional
sinking fund payment".  If provided for by the terms of Securities of any
series, the cash amount of any sinking fund payment may be subject to reduction
as provided in Section 1202.  Each sinking fund payment shall be applied to the
redemption of Securities of any series as provided for by the terms of
Securities of such series.

SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities.

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

SECTION 1203.  Redemption of Securities for Sinking Fund.

         Not less than 45 days prior to each sinking fund payment date for any
series of Securities, the Company will deliver to the Trustee a Company Order
specifying the amount of the next ensuing sinking fund payment for that series
pursuant to the terms of that series, the portion thereof, if any, which is to
be satisfied by payment of cash and the portion thereof, if any, which is to be
satisfied by delivering and crediting Securities of that series pursuant to
Section 1202 and will also deliver to the Trustee any Securities to be so
credited.  Not less than 30 days before each such sinking fund





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<PAGE>   70
payment date the Company or the Trustee shall select the Securities to be
redeemed upon such sinking fund payment date in the manner specified in Section
1103 and cause notice of the redemption thereof to be given in the name of and
at the expense of the Company in the manner provided in Section 1104.  Such
notice having been duly given, the redemption of such Securities shall be made
upon the terms and in the manner stated in Sections 1106 and 1107.

                                ARTICLE THIRTEEN
                       DEFEASANCE AND COVENANT DEFEASANCE

SECTION 1301.  Company's Option to Effect Defeasance or Covenant Defeasance.

         The Company may at its option by Board Resolution, at any time, elect
to have either Section 1302 or Section 1303 applied to the Outstanding
Securities of any series upon compliance with the conditions set forth below in
this Article Thirteen.

SECTION 1302.  Defeasance and Discharge.

         Upon the Company's exercise of the option provided in Section 1301
applicable to this Section, the Company shall be deemed to have been discharged
from its obligations with respect to the Outstanding Securities of any series
on the date the conditions set forth below are satisfied (hereinafter,
"defeasance").  For this purpose, such defeasance means that the Company shall
be deemed to have paid and discharged the entire indebtedness represented by
the Outstanding Securities of such series and to have satisfied all its other
obligations under the Securities of such series and this Indenture insofar as
the Securities of such series are concerned (and the Trustee, at the expense of
the Company, 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 the Securities of such series to
receive, solely from the trust fund described in Section 1304 and as more fully
set forth in such Section, payments in respect of the principal of and any
premium and interest on the Securities of such series when such payments are
due, (B) the Company's obligations with respect to such Securities under
Sections 304, 305, 306, 1002, 1003 and 1004, (C) the rights, powers, trusts,
duties and immunities of the Trustee hereunder and (D) this Article Thirteen.
Subject to compliance with this Article Thirteen, the Company may exercise its
option under this Section 1302 notwithstanding the prior exercise of its option
under Section 1303.

SECTION 1303.  Covenant Defeasance.

         Upon the Company's exercise of the option provided in Section 1301
applicable to this Section, (i) the Company shall be released from its
obligations with respect to the Securities of such series under Sections 801
and 1005, and (ii) the occurrence of an event specified in Sections 501(3) or
(4) shall not be deemed to be an Event of Default on and after the date the
conditions set forth below are satisfied (hereinafter, "covenant defeasance"),
but the remainder of this Indenture and such Securities shall be unaffected
thereby.  For this purpose, such covenant defeasance means that the Company may
omit to comply with and shall have no liability in respect of any term,
condition or limitation set forth in any such Section or clause whether
directly or indirectly by reason of any reference elsewhere herein to any such
Section or clause or by reason of any reference in any such Section or clause
to any other provision herein or in any such





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Section or clause to any other provision herein or in any other document, but
the remainder of this Indenture and such Securities shall be unaffected
thereby.

SECTION 1304.  Conditions to Defeasance or Covenant Defeasance.

         The following shall be the conditions to application of either Section
1302 or Section 1303 to the then Outstanding Securities of any series:

                 (1)      The Company shall irrevocably have deposited or
         caused to be deposited with the Trustee (or another trustee satisfying
         the requirements of Section 609 who shall agree to comply with the
         provisions of this Article Thirteen 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 the Securities of such series, (A) money in an amount, or
         (B) U.S. Government Obligations which through the scheduled payment of
         principal and interest in respect thereof in accordance with their
         terms will provide, not later than one day before the due date of any
         payment, money in an amount, or (C) a combination thereof, sufficient,
         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, the
         principal of (and premium, if any) and each installment of interest on
         the Securities and any coupons pertaining thereto on the Stated
         Maturity of such principal (and premium, if any) or installment of
         interest in accordance with the terms of this Indenture and of the
         Securities of such series.  For this purpose, "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 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.

                 (2)      In the case of an election under Section 1302, the
         Company shall have delivered to the Trustee an Opinion of Counsel
         stating that (x) the Company has received from, or there has been
         published by, the Internal Revenue Service a ruling, or (y) since the
         date of this Indenture there has been a change in the applicable
         Federal income tax law, in either case to the effect that, and based
         thereon such opinion shall confirm that, the Holders of the
         Outstanding Securities of such series will not recognize income, gain
         or loss for





                                       65
<PAGE>   72
         Federal income tax purposes as a result of such deposit, defeasance
         and discharge and 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 deposit, defeasance and discharge had not occurred.

                 (3)      In the case of an election under Section 1303, the
         Company shall have delivered to the Trustee an Opinion of Counsel to
         the effect that the Holders of the Outstanding Securities of such
         series will not recognize gain or loss for Federal income tax purposes
         as a result of such deposit and covenant defeasance and will be
         subject to Federal income tax on the same amount, in the same manner
         and at the same times as would have been the case if such deposit and
         covenant defeasance had not occurred.

                 (4)      No Event of Default or event which with notice or
         lapse of time or both would become an Event of Default with respect to
         the Securities of such series shall have occurred and be continuing on
         the date of such deposit or, insofar as subsections 501(5) and (6) are
         concerned, at any time during the period ending on the 121st day after
         the date of such deposit (it being understood that this condition
         shall not be deemed satisfied until the expiration of such period).

                 (5)      Such defeasance or covenant defeasance shall not
         cause the Trustee to have a conflicting interest within the meaning of
         the Trust Indenture Act with respect to any securities of the Company.

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

                 (7)      The Company shall have delivered to the Trustee an
         Officers' Certificate and an Opinion of Counsel, each stating that all
         conditions precedent provided for relating to either the defeasance
         under Section 1302 or the covenant defeasance under Section 1303 (as
         the case may be) have been complied with.

                 (8)      Such defeasance or covenant defeasance shall not
         result in the trust arising from such deposit constituting an
         investment company as defined in the Investment Company Act of 1940,
         or such trust shall be qualified under such Act or exempt from
         regulation thereunder.

SECTION 1305.  Deposited Money and U.S. Government Obligations to Be Held in
               Trust; Other Miscellaneous Provisions.

         Subject to the provisions of the last paragraph of Section 1003, all
money and U.S. Government Obligations (including the proceeds thereof)
deposited with the Trustee (or other qualifying trustee -- collectively, for
purposes of this Section 1305, the "Trustee") pursuant to Section 1304 in
respect of the Securities of such series shall be held in trust and applied by
the Trustee, in accordance with the provisions of such Securities of such
series and this Indenture, to the





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

         The Company shall pay and indemnify the Trustee against any tax, fee
or other charge imposed on or assessed against the U.S. Government Obligations
deposited pursuant to Section 1304 or the principal and interest received in
respect thereof other than any such tax, fee or other charge which by law is
for the account of the Holders of the Outstanding Securities.

         Anything in this Article Thirteen to the contrary notwithstanding, the
Trustee shall deliver or pay to the Company from time to time upon Company
Request any money or U.S. Government Obligations held by it as provided in
Section 1304 which, in the opinion of a nationally recognized firm of
independent public accountants expressed in a written certification thereof
delivered to the Trustee, are in excess of the amount thereof which would then
be required to be deposited to effect an equivalent defeasance or covenant
defeasance.

SECTION 1306.  Reinstatement.

         If the Trustee or the Paying Agent is unable to apply any money in
accordance with Section 1302 or 1303 by reason of any order or judgment of any
court or governmental authority enjoining, restraining or otherwise prohibiting
such application, then the Company's obligations under this Indenture and the
Securities of such series shall be revived and reinstated as though no deposit
had occurred pursuant to this Article Thirteen until such time as the Trustee
or Paying Agent is permitted to apply all such money in accordance with Section
1302 or 1303; provided, however, that if the Company makes any payment of
principal of or any premium or interest on any Security following the
reinstatement of its obligations, the Company shall be subrogated to the rights
of the Holders of the Securities of such series to receive such payment from
the money held by the Trustee or the Paying Agent.

                                ARTICLE FOURTEEN
                       MEETINGS OF HOLDERS OF SECURITIES

SECTION 1401.  Purposes for Which Meetings May Be Called.

         If Securities of a series are issuable as Bearer Securities, a meeting
of Holders of Securities of such series may be called at any time and from time
to time pursuant to this Article to make, give or take any request, demand,
authorization, direction, notice, consent, waiver or other action provided by
this Indenture to be made, given or taken by Holders of Securities of such
series.

SECTION 1402.  Call, Notice and Place of Meetings.

         (a)     The Trustee may at any time call a meeting of Holders of
Securities of any series for any purpose specified in Section 1401, to be held
at such time and at such place in the Borough of Manhattan, The City of New
York, or in London as the Trustee shall determine.  Notice of every





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meeting of Holders of Securities of any series, setting forth the time and the
place of such meeting and in general terms the action proposed to be taken at
such meeting, shall be given, in the manner provided in Section 106, not less
than 21 nor more than 120 days prior to the date fixed for the meeting.

         (b)     In case at any time the Company, pursuant to a Board
Resolution, or the Holders of at least 10% in principal amount of the
Outstanding Securities of any series shall have requested the Trustee to call a
meeting of the Holders of Securities of such series for any purpose specified
in Section 1401, by written request setting forth in reasonable detail the
action proposed to be taken at the meeting, and the Trustee shall not have made
the first publication of the notice of such meeting within 21 days after
receipt of such request or shall not thereafter proceed to cause the meeting to
be held as provided herein, then the Company or the Holders of Securities of
such series in the amount above specified, as the case may be, may determine
the time and the place in the Borough of Manhattan, The City of New York, or in
London for such meeting and may call such meeting for such purposes by giving
notice thereof as provided in subsection (a) of this Section.

SECTION 1403.  Persons Entitled to Vote at Meetings.

         To be entitled to vote at any meeting of Holders a Person shall (a) be
a Holder of one or more Securities or (b) be a Person appointed by an
instrument in writing as proxy by a Holder of one or more Securities.  The only
Persons who shall be entitled to be present or to speak at any meeting of
Holders shall be the Persons entitled to vote at such meeting and their counsel
and any representatives of the Trustee and its counsel and any representatives
of the Company and its counsel.

SECTION 1404.  Quorum; Action.

         The Persons entitled to vote a majority in principal amount of the
Outstanding Securities of a series shall constitute a quorum for a meeting of
Holders of Securities of such series.  In the absence of a quorum within 30
minutes of the time appointed for any such meeting, the meeting shall, if
convened at the request of Holders of Securities of such series, be dissolved.
In any other case the meeting may be adjourned for a period of not less than 10
days as determined by the chairman of the meeting prior to the adjournment of
such meeting.  In the absence of a quorum at any such adjourned meeting, such
adjourned meeting may be further adjourned for a period of not less than 10
days as determined by the chairman of the meeting prior to the adjournment of
such adjourned meeting.  Notice of the reconvening of any adjourned meeting
shall be given as provided in Section 1402(a), except that such notice need be
given only once not less than five days prior to the date on which the meeting
is scheduled to be reconvened.  Notice of the reconvening of an adjourned
meeting shall state expressly the percentage, as provided above, of the
principal amount of the Outstanding Securities of such series which shall
constitute a quorum.

         Except as limited by Section 512 or the proviso to the first paragraph
of Section 902, any resolution presented to a meeting (or adjourned meeting
duly reconvened at which a quorum is present as aforesaid) may be adopted by
the affirmative vote of the Holders of a majority in principal amount of the
Outstanding Securities of that series; provided, however, that, any resolution
with





                                       68
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respect to any request, demand, authorization, direction, notice, consent,
waiver or other action which this Indenture expressly provides may be made,
given or taken by the Holders of a specified percentage, which is less than a
majority, in principal amount of the Outstanding Securities of a series may be
adopted at a meeting (or an adjourned meeting duly reconvened and at which a
quorum is present as aforesaid) by the affirmative vote of the Holders of such
specified percentage in principal amount of the Outstanding Securities of that
series.

         To the extent consistent with the terms of this Indenture, any
resolution passed or decision taken at any meeting of Holders of Securities of
any series duly held in accordance with this Section shall be binding on all
the Holders of Securities of such series and the related coupons, whether or
not present or represented at the meeting.

SECTION 1405.  Determination of Voting Rights; Conduct and Adjournment of
               Meetings.

         (a)     Notwithstanding any other provisions of this Indenture, the
Trustee may make such reasonable regulations as it may deem advisable for any
meeting of Holders of Securities of a series in regard to proof of the holding
of Securities of such series and of the appointment of proxies and in regard to
the appointment and duties of inspectors of votes, the submission and
examination of proxies, certificates and other evidence of the right to vote,
and such other matters concerning the conduct of the meeting as it shall deem
appropriate.  Except as otherwise permitted or required by any such
regulations, the holding of Securities shall be proved in the manner specified
in Section 104 and the appointment of any proxy shall be proved in the manner
specified in Section 104 or by having the signature of the Person executing the
proxy witnessed or guaranteed by any trust company, bank or banker authorized
by Section 104 to certify to the holding of Bearer Securities.  Such
regulations may provide that written instruments appointing proxies, regular on
their face, may be presumed valid and genuine without the proof specified in
Section 104 or other proof.

         (b)     The Trustee shall, by an instrument in writing, appoint a
temporary chairman of the meeting, unless the meeting shall have been called by
the Company or by Holders of Securities as provided in Section 1402(b), in
which case the Company or the Holders of Securities of the series calling the
meeting, as the case may be, shall in like manner appoint a temporary chairman.
A permanent chairman and a permanent secretary of the meeting shall be elected
by vote of the Persons entitled to vote a majority in principal amount of the
Outstanding Securities of such series represented at the meeting.

         (c)     At any meeting each Holder of a Security of such series or
proxy shall be entitled to one vote for each $1,000 principal amount of the
Outstanding Securities of such series held or represented by him; provided,
however, that no vote shall be cast or counted at any meeting in respect of any
Security challenged as not Outstanding and ruled by the chairman of the meeting
to be not Outstanding.  The chairman of the meeting shall have no right to
vote, except as a Holder of a Security of such series or proxy.





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         (d)     Any meeting of Holders of Securities of any series duly called
pursuant to Section 1402 at which a quorum is present may be adjourned from
time to time by Persons entitled to vote a majority in principal amount of the
Outstanding Securities of such series represented at the meeting; and the
meeting may be held as so adjourned without further notice.

SECTION 1406.  Counting Votes and Recording Action of Meetings.

         The vote upon any resolution submitted to any meeting of Holders of
Securities of any series shall be by written ballots on which shall be
subscribed the signatures of the Holders of Securities of such series or of
their representatives by proxy and the principal amounts and serial numbers of
the Outstanding Securities of such series held or represented by them.  The
permanent chairman of the meeting shall appoint two inspectors of votes who
shall count all votes cast at the meeting for or against any resolution and who
shall make and file with the secretary of the meeting their verified written
reports in duplicate of all votes cast at the meeting.  A record, at least in
duplicate, of the proceedings of each meeting of Holders of Securities of any
series shall be prepared by the secretary of the meeting and there shall be
attached to said record the original reports of the inspectors of votes on any
vote by ballot taken thereat and affidavits by one or more persons having
knowledge of the facts setting forth a copy of the notice of the meeting and
showing that said notice was given as provided in Section 1402 and, if
applicable, Section 1404.  Each copy shall be signed and verified by the
affidavits of the permanent chairman and secretary of the meeting and one such
copy shall be delivered to the Company, and another to the Trustee to be
preserved by the Trustee, the latter to have attached thereto the ballots voted
at the meeting.  Any record so signed and verified shall be conclusive evidence
of the matters therein stated.

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

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

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

                                        USA WASTE SERVICES, INC.


                                        By:   
                                           ------------------------------------
                                        
                                        
                                         
                                        ---------------------------------------
                                                AS TRUSTEE
                                        
                                        By:   
                                           ------------------------------------
                                                Vice President





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                                   EXHIBIT A

                       FORM OF CERTIFICATE TO BE GIVEN BY
                              BENEFICIAL OWNER OF
                    INTEREST IN A TEMPORARY GLOBAL SECURITY

                            USA WASTE SERVICES, INC.

                             [Title of Securities]

                               (the "Securities")

         This is to certify that as of the date hereof, and except as set forth
below, the above-captioned Securities held by you for our account (i) are owned
by person(s) that are not citizens or residents of the United States, domestic
partnerships, domestic corporations or any estate or trust the income of which
is subject to United States Federal income taxation regardless of its source
("United States persons"), (ii) are owned by United States person(s) that are
(A) foreign branches of United States financial institutions (as defined in
U.S. Treasury Regulations Section 1.165-12(c)(1)(v)) ("financial institutions")
purchasing for their own account or for resale, or (B) United States person(s)
who acquired Securities through the foreign branches of the United States
financial institutions and who hold the Securities through such United States
financial institutions on the date hereof (and in either case (A) or (B), each
such United States financial institution hereby agrees, on its own behalf or
through its agent, to comply with the requirements of Section 165(j)(3)(A), (B)
or (C) of the Internal Revenue Code of 1986 as amended, and the regulations
thereunder), or (iii) are owned by United States or foreign financial
institution(s) for purposes of resale during the restricted period (as defined
in U.S. Treasury Regulations Section 1.163-5(c)(2)(i)(D)(7)), and in addition
if the owner of the Securities is a United States or foreign financial
institution described in clause (iii) above (whether or not also described in
clause (i) or (ii)), this is to further certify that such financial institution
has not acquired the Securities for purposes of resale directly or indirectly
to a United States person or to a person within the United States or its
possessions.

         If the Securities are of the category contemplated in Section
230.903(c)(3) of Regulation S under the Securities Act of 1933, as amended (the
"Act"), then this is also to certify that, except as set forth below (i) in the
case of debt securities, the Securities are beneficially owned by (a) non-U.S.
person(s) or (b) U.S. person(s) who purchased the Securities in transactions
which did not require registration under the Act; or (ii) in the case of equity
securities, the Securities are owned by (x) non-U.S. person(s) (and such
person(s) are not acquiring the Securities for the account or benefit of U.S.
person(s)), or (y) U.S. person(s) who purchased the Securities in a transaction
which did not require registration under the Act.  If this certification is
being delivered in connection with the exercise of warrants pursuant to Section
230.902(m) of Regulation S under the Act, then this is further to certify that,
except as set forth below, the Securities are being exercised by and on behalf
of non-U.S. person(s).  As used in this paragraph, the term "U.S. person" has
the meaning given to it by Regulation S under the Act.





                                       1
<PAGE>   78
         As used herein, "United States" or "U.S." means the United States of
America (including the States and District of Columbia); and its "possessions"
include Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island
and the Northern Mariana Islands.

         We undertake to advise you promptly by tested telex on or prior to the
date on which you intend to submit your certification relating to the
Securities held by you for our account in accordance with your Operating
Procedures if any applicable statement herein is not correct on such date, and
in the absence of any such notification it may be assumed that this
certification applies as of such date.

         This certification excepts and does not relate to $_________ of such
interest in the above Securities in respect of which we are not able to certify
and as to which we understand exchange and delivery of definitive Securities
(or, if relevant, exercise of any rights or collection of any interest) cannot
be made until we do so certify.

         We understand that this certification is required in connection with
certain tax laws and, if applicable, certain securities laws of the United
States.  In connection therewith, if administrative or legal proceedings are
commenced or threatened in connection with which this certification is or would
be relevant, we irrevocably authorize you to produce this certification to any
interested party in such proceedings.

*Dated: _______________, 199__.


                                        NAME OF PERSON MAKING CERTIFICATION


                                        By:   
                                           ------------------------------------




- ------------------
* To be dated no earlier than the Certification Date.





                                       2
<PAGE>   79
                                   EXHIBIT B

                    FORM OF CERTIFICATION TO BE GIVEN BY THE
                       EURO-CLEAR OPERATOR OR CEDEL S.A.

                            USA WASTE SERVICES, INC.

                            [Title of Securities]

                               (the "Securities")

         This is to certify that, based solely on certifications we have
received in writing, by tested telex or by electronic transmission from member
organizations appearing in our records as persons being entitled to a portion
of the principal amount set forth below (our "Member Organizations")
substantially to the effect set forth in the Indenture, dated as of October 20,
1993, between USA Waste Services, Inc. and ______________ as of the date
hereof, [      ] principal amount of the above-captioned Securities (i) is
owned by persons that are not citizens or residents of the United States,
domestic partnerships, domestic corporations or any estate or trust the income
of which is subject to United States Federal income taxation regardless of its
source ("United States persons"), (ii) is owned by United States persons that
are (A) foreign branches of United States financial institutions (as defined in
U.S. Treasury Regulations Section 1.16512(c)(1)(v)) ("financial institutions")
purchasing for their own account or for resale, or (B) United States persons
who acquired the Securities through foreign branches of United States financial
institutions and who hold the Securities through such United States financial
institutions on the date hereof (and in either case (A) or (B), each such
United States financial institution has agreed, on its own behalf or through
its agent, that it will comply with the requirements of Section 165(1)(3)(A),
(B) or (C) of the Internal Revenue Code of 1986, as amended, and the
regulations thereunder), or (iii) is owned by United States or foreign
financial institutions for purposes of resale during the restricted period (as
defined in U.S. Treasury Regulations Section 1.1635(c)(2)(i)(D)(7)), and to the
further effect that the United States or foreign financial institutions
described in clause (iii) above (whether or not also described in clause (i) or
(ii)) have certified that they have not acquired the Securities for purposes of
resale directly or indirectly to a United States person or to a person within
the United States or its possessions.

         If the Securities are of the category contemplated in Section
230.903(c)(3) of Regulation S under the Securities Act of 1933, as amended,
then this is also to certify with respect to such principal amount of
Securities set forth above that, except as set forth below, we have received in
writing, by tested telex or by electronic transmission, from our Member
Organizations entitled to a portion of such principal amount, certifications
with respect to such portion, substantially to the effect set forth in the
Indenture.

         We further certify (i) that we are not making available herewith for
exchange (or, if relevant, exercise of any rights or collection of any
interest) any portion of the temporary global Security excepted in such
certifications and (ii) that as of the date hereof we have not received any
notification from any of our Member Organizations to the effect that the
statements made by such





                                       1
<PAGE>   80
Member Organizations with respect to any portion of the part submitted herewith
for exchange (or, if relevant, exercise of any rights or collection of any
interest) are no longer true and cannot be relied upon as of the date hereof.

         We understand that this certification is required in connection with
certain tax laws and, if applicable, certain securities laws of the United
States.  In connection therewith, if administrative or legal proceedings are
commenced or threatened in connection with which this certification is or would
be relevant, we irrevocably authorize you to produce this certification or a
copy hereof to any interested party in such proceedings.

Dated: ___________________, 199__.

(dated the Exchange Date or the Interest
Payment Date)

                                        [Morgan Guaranty Trust Company of New
                                        York, as operator of the Euro-clear
                                        System]
                                        
                                        or
                                        
                                        [CEDEL S.A.]
                                        
                                        
                                        By:  
                                           ------------------------------------





                                       2

<PAGE>   1
                                                                     EXHIBIT 5.1




                                 July 30, 1997



USA Waste Services, Inc.
1001 Fannin, Suite 4000
Houston, Texas 77002

Ladies and Gentlemen:

         We have acted as counsel to USA Waste Services, Inc., a Delaware
corporation ("USA Waste"), in connection with the preparation of the
Registration Statement on Form S-3 (the "Registration Statement") filed on July
30, 1997, with the Securities and Exchange Commission (the "Commission") under
the Securities Act of 1933, as amended (the "Securities Act"), with respect to
USA Waste's (i) unsecured debt securities ("Debt Securities"), in one or more
series, which may be senior or subordinated in priority of payment (the
subordinated Debt Securities may be convertible or exchangeable into common
stock, par value $.01 per share, of USA Waste ("Common Stock")), and (ii) shares
of Common Stock (such Debt Securities and Common Stock are collectively
referred to herein as the "Securities"), which Securities may be issued from
time to time pursuant to Rule 415 under the Securities Act for an aggregate
initial offering price not to exceed $1,500,000,000.

         We have examined originals or copies, certified or otherwise
identified to our satisfaction, of (i) the Restated Certificate of
Incorporation and Bylaws of USA Waste, each as amended to the date hereof, (ii)
the Senior Indenture (the "Senior Indenture") to be entered into between USA
Waste and Texas Commerce Bank National Association ("Texas Commerce"), in the
form included as an exhibit to the Registration Statement, (iii) the 
Subordinated Indenture (the "Subordinated Indenture") by and between USA Waste
and Texas Commerce, as trustee, dated as of February 1, 1997, and (iv) such
other certificates, statutes and other instruments and documents as we
considered appropriate for purposes of the opinions hereafter expressed.

         In connection with this opinion, we have assumed that (i) the
Registration Statement, and any amendments thereto (including post-effective
amendments), will have become effective; (ii) a Prospectus Supplement will have
been prepared and filed with the Commission describing the Securities offered
thereby; (iii) all Securities will be issued and sold in compliance with
applicable federal and state securities laws and in the manner described in the
Registration Statement and the applicable Prospectus Supplement; (iv) the
Senior Indenture will be duly
<PAGE>   2
USA Waste Services, Inc.
July 30, 1997
Page 2


authorized, executed and delivered by USA Waste and a trustee qualified under
the Trust Indenture Act of 1939, as amended (the "TIA"), in substantially the
form reviewed by us; (v) a definitive purchase, underwriting or similar
agreement with respect to any Securities offered will have been duly authorized
and validly executed and delivered by USA Waste and the other parties  thereto;
and (vi) any Securities issuable upon conversion, exchange or exercise of any
Security being offered will have been duly authorized, created and, if
appropriate, reserved for issuance upon such conversion, exchange or exercise.

         Based on the foregoing, we are of the opinion that:

         1.      USA Waste has been duly incorporated and is validly existing
and in good standing under the laws of the State of Delaware.

         2.      With respect to Debt Securities to be issued under the Senior
Indenture, when (i) the Senior Indenture has been duly qualified under the TIA;
(ii) the Board of Directors of USA Waste or, to the extent permitted by Section
141 of the Delaware General Corporation Act (the "DGCL"), a duly constituted
and acting committee thereof (such Board of Directors or committee being
referred to herein as the "Board") has taken all necessary corporate action to
approve the issuance and terms of such Debt Securities, the terms of the
offering thereof and related matters; (iii) the terms of such Debt Securities
and of their issuance and sale have been established so as not to violate any
applicable law or result in a default under or breach of any agreement or
instrument binding upon USA Waste and so as to comply with any requirement or
restriction imposed by any court or governmental body having jurisdiction over
USA Waste; and (iv) such Debt Securities have been duly executed,
authenticated, issued and delivered in accordance with the provisions of the
Senior Indenture and in accordance with the applicable definitive purchase,
underwriting or similar agreement approved by the Board upon payment of the
consideration provided for therein, such Debt Securities will be legally issued
and will constitute valid and binding obligations of USA Waste, enforceable
against USA Waste in accordance with their terms, except as such enforcement is
subject to any applicable bankruptcy, insolvency, reorganization or other law
relating to or affecting creditors' rights generally and general principles of
equity and will be entitled to the benefits of the Senior Indenture.

         3.      With respect to Debt Securities to be issued under the
Subordinated Indenture, when (i) the Subordinated Indenture has been duly
qualified under the TIA; (ii) the Board has taken all necessary corporate
action to approve the issuance and terms of such Debt Securities, the terms of
the offering thereof and related matters; (iii) the terms of such Debt
Securities and of their issuance and sale have been established so as not to
violate any applicable law or result in a default under or breach of any
agreement or instrument binding upon USA Waste and so as to comply with any
requirement or restriction imposed by any court or governmental body having
jurisdiction over USA Waste; and (iv) such Debt Securities have been duly
executed, authenticated, issued and delivered in accordance with the provisions
of the Subordinated
<PAGE>   3
USA Waste Services, Inc.
July 30, 1997
Page 3


Indenture and in accordance with the applicable definitive purchase,
underwriting or similar agreement approved by the Board upon payment of the
consideration provided for therein, such Debt Securities will be legally issued
and will constitute valid and binding obligations of USA Waste, enforceable
against USA Waste in accordance with their terms, except as such enforcement is
subject to any applicable bankruptcy, insolvency, reorganization or other law
relating to or affecting creditors' rights generally and general principles of
equity and will be entitled to the benefits of the Subordinated Indenture.

         4.      With respect to shares of Common Stock, when (i) the Board has
taken all necessary corporate action to approve the issuance and terms of the
offering thereof and related matters; and (ii) certificates representing the
shares of Common Stock have been duly executed, countersigned, registered and
delivered either (a) in accordance with the applicable definitive purchase,
underwriting or similar agreement approved by the Board upon payment of the
consideration therefor (not less than the par value of the Common Stock)
provided for therein, and (b) upon conversion, exchange or exercise of any
other Security in accordance with the terms of such Security or the instrument
governing such Security providing for such conversion, exchange or exercise as
approved by the Board, for the consideration approved by the Board (not less
than the par value of the Common Stock and, in the case of shares of Common
Stock issued upon the conversion, exchange or exercise of another security, the
consideration specified in Section 153 of the DGCL), the shares of Common Stock
will be duly authorized, validly issued, fully paid and non-assessable.

         The foregoing opinions are limited in all respects to the laws of the
State of Texas, the General Corporation Law of the State of Delaware and
federal laws.

         We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement.  By giving such consent, we do not admit that we are
within the category of persons whose consent is required under Section 7 of the
Securities Act or the rules and regulations of the commission issued
thereunder.

                                      Very truly yours,



                                      Liddell, Sapp, Zivley, Hill & LaBoon, LLP

<PAGE>   1

                                                                    EXHIBIT 12.1
 
                            USA WASTE SERVICES, INC.
                        RATIO OF EARNINGS TO FIXED CHARGES
                         (in thousands, except ratios)
 
<TABLE>
<CAPTION>
                                  THREE MONTHS
                                      ENDED                   YEAR ENDED DECEMBER 31,
                                    MARCH 31,   ----------------------------------------------------
                                       1997       1996       1995       1994       1993       1992
                                   -----------  --------   --------   --------   --------   --------
<S>                                <C>          <C>        <C>        <C>        <C>        <C>
ACTUAL
Income (loss) before taxes,
  accounting changes, and
  preferred stock dividends          $81,879    $ 78,088   $ 97,480   $ (8,027)  $ 52,268   $(68,886)
Fixed charges deducted from
  income:
  Interest expense                    11,957      45,547     59,552     48,932     46,032     44,612
  Interest implicit in rents           1,467       7,241      6,208      8,026     10,328     11,014
                                     -------    --------   --------   --------   --------   --------
     Earnings available for 
       fixed charges                 $95,303    $130,876   $163,240   $ 48,931   $108,628   $(13,260)
                                     =======    ========   ========   ========   ========   ========

Interest expense                     $11,957    $ 45,547   $ 59,552   $ 48,932   $ 46,032   $ 44,612
Capitalized interest                   5,214      19,507     12,459      9,828      8,308      9,587
Interest implicit in rents             1,467       7,241      6,208      8,026     10,328     11,014
                                     -------    --------   --------   --------   --------   --------
     Total fixed charges             $18,638    $ 72,295   $ 78,219   $ 66,786   $ 64,668   $ 65,213
                                     =======    ========   ========   ========   ========   ========
     Ratio of earnings to 
       fixed charges                    5.11        1.81       2.09       0.73       1.68      (0.20)
                                     =======    ========   ========   ========   ========   ========
 
SUPPLEMENTAL
Income (loss) before taxes,
  accounting changes, and 
  preferred stock dividends          $81,879    $ 78,088   $ 97,480   $ (8,027)  $ 52,268   $(68,886)
Nonrecurring charges deducted 
  from income:
  Merger costs                            --     120,656     25,639      3,782         --         --
  Unusual items                           --      63,800      4,733      8,863      2,672     72,090
  Stockholder litigation costs            --          --         --     79,400      5,500     10,853
  Nonrecurring interest                   --          --     10,994      1,254         --         --
Fixed charges deducted from
  income:
  Interest expense                    11,957      45,547     59,552     48,932     46,032     44,612
  Less: Nonrecurring interest             --          --    (10,994)    (1,254)        --         --
  Interest implicit in rents           1,467       7,241      6,208      8,026     10,328     11,014
                                     -------    --------   --------   --------   --------   --------
     Earnings available for
        fixed charges                $95,303    $315,332   $193,612   $140,976   $116,800   $ 69,683
                                     =======    ========   ========   ========   ========   ========

Interest expense                     $11,957    $ 45,547   $ 59,552   $ 48,932   $ 46,032   $ 44,612
Less: Nonrecurring interest               --          --    (10,994)    (1,254)        --         --
Capitalized interest                   5,214      19,507     12,459      9,828      8,308      9,587
Interest implicit in rents             1,467       7,241      6,208      8,026     10,328     11,014
                                     -------    --------   --------   --------   --------   --------
     Total fixed charges             $18,638    $ 72,295   $ 67,225   $ 65,532   $ 64,668   $ 65,213
                                     =======    ========   ========   ========   ========   ========
     Ratio of earnings to 
        fixed charges                   5.11        4.36       2.88       2.15       1.81       1.07
                                     =======    ========   ========   ========   ========   ========
</TABLE>

 
        NOTE: Nonrecurring items for the year ended December 31, 1996 

represent merger costs, primarily related to mergers with Sanifill, Inc. in
August 1996, Western Waste Industries ("Western") in May 1996, and Grand Central
Sanitation in May 1996, and unusual items primarily related to retirement
benefits associated with Western's pre-merger retirement plan, estimated future
losses related to municipal solid waste contracts in California as a result of
the continuing decline in prices of recyclable materials, estimated losses
related to the disposition of certain non-core business assets, project reserves
related to certain Mexico operations, and various other terminated projects.
Nonrecurring items in 1995 primarily represent merger costs related to the
merger with Chambers Development Company, Inc. ("Chambers") in June 1995 and
nonrecurring interest related to extension fees and other charges associated
with the refinancing of Chambers pre-merger debt. Nonrecurring items in 1994
primarily represent shareholder litigation costs incurred in connection with a
settled class action of consolidated suits on similar claims alleging federal
securities violations against Chambers, certain of its officers and directors,
its former auditors, and the underwriters of its securities. Nonrecurring items
in 1993 were not material. Nonrecurring items in 1992 primarily represent
various restructuring charges and asset reserves incurred by Western and
Chambers.

<PAGE>   1
 
                                                                    EXHIBIT 23.2
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
     We consent to the incorporation by reference in this registration statement
on Form S-3 of our report dated March 21, 1997, on our audits of the
consolidated financial statements of USA Waste Services, Inc. and subsidiaries.
We also consent to the reference to our firm under the caption "Experts."
 
                                            Coopers & Lybrand L.L.P.
 
Houston, Texas
July 28, 1997

<PAGE>   1
                                                                 EXHIBIT 23.3


                       CONSENT OF INDEPENDENT ACCOUNTANTS

     We consent to the incorporation by reference in this registration
statement on Form S-3 of our report dated October 16, 1996 (except for Notes 1
and 8 which are as at January 15, 1997), on our audit of the financial
statements of Laidlaw Solid Waste Management Group - Canadian Operations.

  

                                                 COOPERS & LYBRAND
                                                 Chartered Accountants

Hamilton, Canada
July 28, 1997

<PAGE>   1

                                                                   EXHIBIT 23.4

                       CONSENT OF INDEPENDENT AUDITORS

We consent to the incorporation by reference in the Registration Statement (Form
S-3) of USA Waste Services, Inc. of our report dated February 21, 1997, except
for Note 13, as to which the date is March 25, 1997, with respect to the
consolidated financial statements and schedule of United Waste Systems, Inc.
included in its Annual Report on Form 10-K/A #2 for the year ended December 31,
1996, filed with the Securities and Exchange Commission on June 24, 1997, which
was incorporated by reference in USA Waste Services, Inc.'s and United Waste
Systems, Inc.'s Joint Proxy/Prospectus.


                                          Ernst & Young LLP

Metro Park, New Jersey
July 28, 1997

<PAGE>   1
                                                                  EXHIBIT 24.1


                       FORM S-3 LIMITED POWER OF ATTORNEY

                            USA WASTE SERVICES, INC.

     KNOW ALL MEN BY THESE PRESENTS that, the undersigned director or officer
of USA Waste Services, Inc., a Delaware corporation, does hereby make,
constitute and appoint Earl E. DeFrates and Gregory T. Sangalis and each of
them acting individually, his true and lawful attorney with power to act
without the other and with full power of substitution, to execute, deliver and
file, for and on his behalf, and in his name and in his capacity or capacities
as aforesaid, a "Universal Shelf" Registration Statement on Form S-3 for filing
with the Securities and Exchange Commission under the Securities Act of 1933,
as amended, with respect to, among other things, debt securities and common
stock (collectively, the "Securities") of USA Waste Services, Inc. and any and
all amendments thereto, registration statements relating to up to an additional
20% of Securities, or other documents in support thereof or supplemental
thereto, hereby granting to said attorneys and each of them full power and
authority to do and perform each and every act and thing whatsoever as said
attorney or attorneys may deem necessary or advisable to carry out fully the
intent of the foregoing as the undersigned might or could do personally or in
the capacity or capacities as aforesaid, hereby ratifying and confirming all
acts and things which said attorney or attorneys may do or cause to be done by
virtue of these presents.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 29th day
of July, 1997.

                                                   /s/  JOHN E. DRURY  
                                            -----------------------------------
                                                        John E. Drury


                                                   /s/  RALPH F. COX
                                            -----------------------------------
                                                        Ralph F. Cox   


                                                /s/  RICHARD J. HECKMANN
                                            -----------------------------------
                                                     Richard J. Heckmann
 

                                                  /s/  LARRY J. MARTIN         
                                            -----------------------------------
                                                       Larry J. Martin


                                                 /s/  WILLIAM E. MOFFETT
                                            -----------------------------------
                                                      William E. Moffett

[Signatures Continued
On Next Page]












<PAGE>   2

                                               /s/  DONALD F. MOOREHEAD, JR.
                                            -----------------------------------
                                                    Donald F. Moorehead, Jr.  


                                                 /s/  RODNEY R. PROTO
                                            -----------------------------------
                                                      Rodney R. Proto  


                                                 /s/  ALEXANDER W. RANGOS
                                            -----------------------------------
                                                      Alexander W. Rangos


                                                 /s/  JOHN G. RANGOS, SR.   
                                            -----------------------------------
                                                      John G. Rangos, Sr.


                                                  /s/  KOSTI SHIRVANIAN 
                                            -----------------------------------
                                                       Kosti Shirvanian


                                               /s/  DAVID SUTHERLAND-YOEST  
                                            -----------------------------------
                                                    David Sutherland-Yoest


                                                   /s/  SAVEY TUFENKIAN
                                            -----------------------------------
                                                        Savey Tufenkian 

<PAGE>   1
                                                                   EXHIBIT 25.1

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



                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                ----------------
 
                                    FORM T-1

                       STATEMENT OF ELIGIBILITY UNDER THE
                          TRUST INDENTURE ACT OF 1939
                 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE

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

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

                    TEXAS COMMERCE BANK NATIONAL ASSOCIATION
              (Exact name of trustee as specified in its charter)
                                   74-0800980
                    (I.R.S. Employer Identification Number)

     712 MAIN STREET, HOUSTON, TEXAS                             77002
  (Address of principal executive offices)                     (Zip code)

                   LEE BOOCKER, 712 MAIN STREET, 26TH FLOOR
                     HOUSTON, TEXAS 77002  (713) 216-2448
          (Name, address and telephone number of agent for service)

                           USA WASTE SERVICES, INC.
             (Exact name of obligor as specified in its charter)

                  DELAWARE                                     73-1309529
     (State or other jurisdiction of                        (I.R.S. Employer
     incorporation or organization)                      Identification Number)
                                                            
  1001 FANNIN STREET, SUITE 4000, HOUSTON, TEXAS                   77002
(Address of principal executive offices)                         (Zip code)

                             SENIOR DEBT SECURITIES
                        (Title of indenture securities)


================================================================================
<PAGE>   2

ITEM 1.  GENERAL INFORMATION.

         FURNISH THE FOLLOWING INFORMATION AS TO THE TRUSTEE:

         (a)     NAME AND ADDRESS OF EACH EXAMINING OR SUPERVISING
                 AUTHORITY TO WHICH IT IS SUBJECT.

                 Comptroller of the Currency, Washington, D.C.
                 Federal Deposit Insurance Corporation, Washington, D.C.
                 Board of Governors of the Federal Reserve System, Washington,
                 D.C.

         (b)     WHETHER IT IS AUTHORIZED TO EXERCISE CORPORATE TRUST POWERS.

                 The trustee is authorized to exercise corporate trust powers.

ITEM 2.          AFFILIATIONS WITH THE OBLIGOR.

                 IF THE OBLIGOR IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH
                 SUCH AFFILIATION.

                 The obligor is not an affiliate of the trustee. (See Note on
                 Page 7.)

ITEM 3.          VOTING SECURITIES OF THE TRUSTEE.

                 FURNISH THE FOLLOWING INFORMATION AS TO EACH CLASS OF VOTING
                 SECURITIES OF THE TRUSTEE.


<TABLE>
<CAPTION>
                          COL. A                           COL. B
                       TITLE OF CLASS                AMOUNT OUTSTANDING
                       --------------                ------------------
                       <S>                           <C>
</TABLE>


                 Not applicable by virtue of Form T-1 General Instruction B and
                 response to Item 13.

ITEM 4.          TRUSTEESHIPS UNDER OTHER INDENTURES.

                 IF THE TRUSTEE IS A TRUSTEE UNDER ANOTHER INDENTURE UNDER
WHICH ANY OTHER SECURITIES, OR CERTIFICATES OF INTEREST OR PARTICIPATION IN ANY
OTHER SECURITIES, OF THE OBLIGOR ARE OUTSTANDING, FURNISH THE FOLLOWING
INFORMATION:

                 (a)      TITLE OF THE SECURITIES OUTSTANDING UNDER EACH SUCH
                          OTHER INDENTURE.

                 Not applicable by virtue of Form T-1 General Instruction B and
                 response to Item 13.





                                       1
<PAGE>   3
ITEM 4. (CONTINUED)

                 (b)      A BRIEF STATEMENT OF THE FACTS RELIED UPON AS A BASIS
                 FOR THE CLAIM THAT NO CONFLICTING INTEREST WITHIN THE MEANING
                 OF SECTION 310(b)(1) OF THE ACT ARISES AS A RESULT OF THE
                 TRUSTEESHIP UNDER ANY SUCH OTHER INDENTURE, INCLUDING A
                 STATEMENT AS TO HOW THE INDENTURE SECURITIES WILL RANK AS
                 COMPARED WITH THE SECURITIES ISSUED UNDER SUCH OTHER
                 INDENTURE.

                 Not applicable by virtue of Form T-1 General Instruction B and
                 response to Item 13.

ITEM 5.          INTERLOCKING DIRECTORATES AND SIMILAR RELATIONSHIPS WITH
                 OBLIGOR OR UNDERWRITERS.

                 IF THE TRUSTEE OR ANY OF THE DIRECTORS OR EXECUTIVE OFFICER OF
THE TRUSTEE IS A DIRECTOR, OFFICER, PARTNER, EMPLOYEE, APPOINTEE, OR
REPRESENTATIVE OF THE OBLIGOR OR OF ANY UNDERWRITER FOR THE OBLIGOR, IDENTIFY
EACH SUCH PERSON HAVING ANY SUCH CONNECTION AND STATE THE NATURE OF EACH SUCH
CONNECTION.

                 Not applicable by virtue of Form T-1 General Instruction B and
                 response to Item 13.

ITEM 6.          VOTING SECURITIES OF THE TRUSTEE OWNED BY THE OBLIGOR OR ITS
                 OFFICIALS.

                 FURNISH THE FOLLOWING INFORMATION AS TO THE VOTING SECURITIES
OF THE TRUSTEE OWNED BENEFICIALLY BY THE OBLIGOR AND EACH DIRECTOR, PARTNER AND
EXECUTIVE OFFICER OF THE OBLIGOR.

<TABLE>
         COL. A         COL. B            COL. C             COL. D
                                                           PERCENTAGE OF
                                                         VOTING SECURITIES
                                                          REPRESENTED BY
                                        AMOUNT OWNED     AMOUNT GIVEN IN
   NAME OF OWNER    TITLE OF CLASS      BENEFICIALLY          COL. C     
   -------------    --------------      ------------     -----------------
   <S>              <C>                 <C>              <C>
</TABLE>

   Not applicable by virtue of Form T-1 General Instruction B and response to
Item 13.





                                       2
<PAGE>   4
ITEM 7.          VOTING SECURITIES OF THE TRUSTEE OWNED BY UNDERWRITERS OR
                 THEIR OFFICIALS.

                 FURNISH THE FOLLOWING INFORMATION AS TO THE VOTING SECURITIES
OF THE TRUSTEE OWNED BENEFICIALLY BY EACH UNDERWRITER FOR THE OBLIGOR AND EACH
DIRECTOR, PARTNER AND EXECUTIVE OFFICER OF EACH SUCH UNDERWRITER.

<TABLE>
         COL. A        COL. B          COL. C              COL. D
                                                        PERCENTAGE OF
                                                      VOTING SECURITIES
                                                       REPRESENTED BY
                                     AMOUNT OWNED     AMOUNT GIVEN IN
   NAME OF OWNER    TITLE OF CLASS   BENEFICIALLY         COL. C      
  --------------    --------------   ------------     ----------------
  <S>               <C>              <C>              <C>
</TABLE>

   Not applicable by virtue of Form T-1 General Instruction B and response to
Item 13.


ITEM 8.          SECURITIES OF THE OBLIGOR OWNED OR HELD BY THE TRUSTEE.

                 FURNISH THE FOLLOWING INFORMATION AS TO THE SECURITIES OF THE
OBLIGOR OWNED BENEFICIALLY OR HELD AS COLLATERAL SECURITY FOR OBLIGATIONS IN
DEFAULT BY THE TRUSTEE.

<TABLE>             
   COL. A            COL. B             COL. C                     COL. D
                                     AMOUNT OWNED
                   WHETHER THE       BENEFICIALLY OR             PERCENT OF
                   SECURITIES      HELD AS COLLATERAL             CLASS
                   ARE VOTING         SECURITY FOR             REPRESENTED BY
                  OR NONVOTING      OBLIGATIONS IN              AMOUNT GIVEN
TITLE OF CLASS     SECURITIES           DEFAULT                   IN COL. C
- --------------     ----------      -------------------         --------------
<S>              <C>               <C>                         <C>
</TABLE>

   Not applicable by virtue of Form T-1 General Instruction B and response to
Item 13.





                                       3
<PAGE>   5


ITEM 9.          SECURITIES OF UNDERWRITERS OWNED OR HELD BY THE TRUSTEE.

                 IF THE TRUSTEE OWNS BENEFICIALLY OR HOLDS AS COLLATERAL
SECURITY FOR OBLIGATIONS IN DEFAULT ANY SECURITIES OF AN UNDERWRITER FOR THE
OBLIGOR, FURNISH THE FOLLOWING INFORMATION AS TO EACH CLASS OF SECURITIES OF
SUCH UNDERWRITER ANY OF WHICH ARE SO OWNED OR HELD BY THE TRUSTEE.

<TABLE>
     COL. A            COL. B             COL. C                 COL. D
                                        AMOUNT OWNED           
                                       BENEFICIALLY OR          PERCENT OF
                                     HELD AS COLLATERAL           CLASS
 TITLE OF ISSUER                        SECURITY FOR           REPRESENTED BY
       AND              AMOUNT         OBLIGATIONS IN           AMOUNT GIVEN
 TITLE OF CLASS       OUTSTANDING    DEFAULT BY TRUSTEE          IN COL. C
 --------------       -----------    ------------------        --------------
<S>                   <C>            <C>                       <C>
</TABLE>

     Not applicable by virtue of Form T-1 General Instruction B and response to
Item 13.


ITEM 10.         OWNERSHIP OR HOLDINGS BY THE TRUSTEE OF VOTING SECURITIES OF
                 CERTAIN AFFILIATES OR SECURITY HOLDERS OF THE OBLIGOR.

                 IF THE TRUSTEE OWNS BENEFICIALLY OR HOLDS AS COLLATERAL
SECURITY FOR OBLIGATIONS IN DEFAULT VOTING SECURITIES OF A PERSON WHO, TO THE
KNOWLEDGE OF THE TRUSTEE (1) OWNS 10% OR MORE OF THE VOTING SECURITIES OF THE
OBLIGOR OR (2) IS AN AFFILIATE, OTHER THAN A SUBSIDIARY, OF THE OBLIGOR,
FURNISH THE FOLLOWING INFORMATION AS TO THE VOTING SECURITIES OF SUCH PERSON.

<TABLE>
     COL. A          COL. B              COL. C             COL. D
                                      AMOUNT OWNED       
                                    BENEFICIALLY OR        PERCENT OF
                                   HELD AS COLLATERAL        CLASS
TITLE OF ISSUER                      SECURITY FOR        REPRESENTED BY
       AND            AMOUNT        OBLIGATIONS IN        AMOUNT GIVEN
 TITLE OF CLASS     OUTSTANDING   DEFAULT BY TRUSTEE       IN COL. C 
 --------------     -----------   ------------------     --------------
 <S>                <C>           <C>                      <C>
</TABLE>

    Not applicable by virtue of Form T-1 General Instruction B and response to
Item 13.





                                       4
<PAGE>   6



ITEM 11.         OWNERSHIP OR HOLDINGS BY THE TRUSTEE OF ANY SECURITIES OF A
                 PERSON OWNING 50% OR MORE OF THE VOTING SECURITIES OF THE
                 OBLIGOR.

                 IF THE TRUSTEE OWNS BENEFICIALLY OR HOLDS AS COLLATERAL
SECURITY FOR OBLIGATIONS IN DEFAULT ANY SECURITIES OF A PERSON WHO, TO THE
KNOWLEDGE OF THE TRUSTEE, OWNS 50% OR MORE OF THE VOTING SECURITIES OF THE
OBLIGOR, FURNISH THE FOLLOWING INFORMATION AS TO EACH CLASS OF SECURITIES OR
SUCH PERSON ANY OF WHICH ARE SO OWNED OR HELD BY THE TRUSTEE.

<TABLE>
         COL. A        COL. B            COL. C              COL. D
                                      AMOUNT OWNED         
                                    BENEFICIALLY OR         PERCENT OF
                                   HELD AS COLLATERAL         CLASS
    TITLE OF ISSUER                   SECURITY FOR         REPRESENTED BY
           AND         AMOUNT        OBLIGATIONS IN         AMOUNT GIVEN
    TITLE OF CLASS   OUTSTANDING   DEFAULT BY TRUSTEE        IN COL. C 
    --------------   -----------   ------------------      -------------
    <S>              <C>           <C>                     <C>
</TABLE>

    Not applicable by virtue of Form T-1 General Instruction B and response to
Item 13.


ITEM 12.         INDEBTEDNESS OF THE OBLIGOR TO THE TRUSTEE.

                 EXCEPT AS NOTED IN THE INSTRUCTIONS, IF THE OBLIGOR IS
INDEBTED TO THE TRUSTEE, FURNISH THE FOLLOWING INFORMATION:


<TABLE>
  COL. A                    COL. B                  COL. C
                                                   
 NATURE OF                  AMOUNT                 
INDEBTEDNESS              OUTSTANDING              DATE DUE
- ------------              -----------              --------
<S>                       <C>                      <C>
</TABLE>

       Not applicable by virtue of Form T-1 General Instruction B and response
to Item 13.


ITEM 13.         DEFAULTS BY THE OBLIGOR.

         (a)     STATE WHETHER THERE IS OR HAS BEEN A DEFAULT WITH RESPECT TO
THE SECURITIES UNDER THIS INDENTURE.  EXPLAIN THE NATURE OF ANY SUCH DEFAULT.

         There is not, nor has there been, a default with respect to the
securities under this indenture. (See Note on Page 7.)





                                       5
<PAGE>   7

ITEM 13. (CONTINUED)

         (b) IF THE TRUSTEE IS A TRUSTEE UNDER ANOTHER INDENTURE UNDER WHICH
ANY SECURITIES, OR CERTIFICATES OF INTEREST OR PARTICIPATION IN ANY OTHER
SECURITIES, OF THE OBLIGOR ARE OUTSTANDING, OR IS TRUSTEE FOR MORE THAN ONE
OUTSTANDING SERIES OF SECURITIES UNDER THE INDENTURE, STATE WHETHER THERE HAS
BEEN A DEFAULT UNDER ANY SUCH INDENTURE OR SERIES, IDENTIFY THE INDENTURE OR
SERIES AFFECTED, AND EXPLAIN THE NATURE OF ANY SUCH DEFAULT.

         There has not been a default under any such indenture or series. (See
Note on Page 7.)

ITEM 14.          AFFILIATIONS WITH THE UNDERWRITERS.

                 IF ANY UNDERWRITER IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE
EACH SUCH AFFILIATION.

       Not applicable by virtue of Form T-1 General Instruction B and response
to Item 13.

ITEM 15.         FOREIGN TRUSTEE.

                 IDENTIFY THE ORDER OR RULE PURSUANT TO WHICH THE FOREIGN
TRUSTEE IS AUTHORIZED TO ACT AS SOLE TRUSTEE UNDER INDENTURES QUALIFIED OR TO
BE QUALIFIED UNDER THE ACT.

                 Not applicable.

ITEM 16.         LIST OF EXHIBITS.

                 LIST BELOW ALL EXHIBITS FILED AS PART OF THIS STATEMENT OF
                 ELIGIBILITY.

                 o 1.  A copy of the articles of association of the trustee now
                 in effect.

                 # 2.  A copy of the certificate of authority of the trustee to
                 commence business.

                 * 3.  A copy of the certificate of authorization of the
                 trustee to exercise corporate trust powers issued by the Board
                 of Governors of the Federal Reserve System under date of
                 January 21, 1948.

                 + 4.  A copy of the existing bylaws of the trustee.

                   5.  Not applicable.





                                       6
<PAGE>   8
                   6.  The consent of United States institutional trustees
                 required by Section 321(b) of the Act.

             [ ]   7.     A copy of the latest report of condition of the
                 trustee published pursuant to law or the requirements
                 of its supervising or examining authority.

                   8.  Not applicable.

                   9.  Not applicable.

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

                 o  Incorporated by reference to exhibit bearing the same
        designation andpreviously filed with the Securities and Exchange 
        Commission as exhibits to theForm S-3 File No. 33-56195.

                 #  Incorporated by reference to exhibit bearing the same
        designation and previously filed with the Securities and Exchange 
        Commission as exhibits to the Form S-3 File No. 33-42814.

                 *  Incorporated by reference to exhibit bearing the same
        designation and previously filed with the Securities and Exchange 
        Commission as exhibits to the Form S-11 File No. 33-25132.

                 +  Incorporated by reference to exhibit bearing the same
        designation and previously filed with the Securities and Exchange 
        Commission as exhibits to the Form S-3 File No. 33-65055.

                [ ] Incorporated by reference to exhibit bearing the same
        designation and previously filed with the Securities and Exchange
        Commission as exhibits to the Form S-3 File No. 333-26519.

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

                                      NOTE

                 Inasmuch as this Form T-1 is filed prior to the ascertainment
by the trustee of all facts on which to base responsive answers to Items 2 and
13, the answers to said Items are based on incomplete information.  Such Items
may, however, be considered as correct unless amended by an amendment to this
Form T-1.





                                       7
<PAGE>   9

                                   SIGNATURE

         PURSUANT TO THE REQUIREMENTS OF THE TRUST INDENTURE ACT OF 1939 THE
TRUSTEE, TEXAS COMMERCE BANK NATIONAL ASSOCIATION, A NATIONAL BANKING
ASSOCIATION ORGANIZED AND EXISTING UNDER THE LAWS OF THE UNITED STATES OF
AMERICA, HAS DULY CAUSED THIS STATEMENT OF ELIGIBILITY TO BE SIGNED ON ITS
BEHALF BY THE UNDERSIGNED, THEREUNTO DULY AUTHORIZED, ALL IN THE CITY OF
HOUSTON, AND STATE OF TEXAS, ON THE 29TH DAY OF JULY, 1997.



                                 TEXAS COMMERCE BANK NATIONAL ASSOCIATION
                                                (Trustee)


                                            By:    /s/ MAURI J. COWEN 
                                               -------------------------------- 
                                                       Mauri J. Cowen
                                               Vice President and Trust Officer





                                       8
<PAGE>   10
                                   EXHIBIT 6



Securities and Exchange Commission
Washington, D.C. 20549

Gentlemen:

         The undersigned is trustee under an indenture dated as of
____________, 1997, between USA Waste Services, Inc., a Delaware corporation
and Texas Commerce Bank National Association, as Trustee, entered into in
connection with the issuance of its Senior Debt Securities.

         In accordance with Section 321(b) of the Trust Indenture Act of 1939,
the undersigned hereby consents that reports of examinations of the
undersigned, made by Federal or State authorities authorized to make such
examinations, may be furnished by such authorities to the Securities and
Exchange Commission upon its request therefor.

                                                   Very truly yours,

                                                   TEXAS COMMERCE BANK
                                                     NATIONAL ASSOCIATION



                                                   By: /s/ MAURI J. COWEN 
                                                      -----------------------
                                                           Mauri J. Cowen




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