Document:

<PAGE>   1
                                                                     EXHIBIT 4.2

                             REPUBLIC SERVICES, INC.

                                       to

                              THE BANK OF NEW YORK

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

                          FIRST SUPPLEMENTAL INDENTURE,

                           Dated as of August 15, 2001

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

                                  $450,000,000
                           6.75% Senior Notes due 2011

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

              Supplemental to Indenture dated as of August 15, 2001

<PAGE>   2

                  FIRST SUPPLEMENTAL INDENTURE, dated as of August 15, 2001 (the
"First Supplemental Indenture"), between REPUBLIC SERVICES, INC., a Delaware
corporation (hereinafter called the "Company"), and THE BANK OF NEW YORK, as
trustee under the Base Indenture referred to below (hereinafter called the
"Trustee").

                  WHEREAS, the Company entered into an Indenture dated as of
August 15, 2001, 2001 (the "Base Indenture," all capitalized terms used in this
First Supplemental Indenture and not otherwise defined being used as defined in
the Base Indenture) (the Base Indenture and First Supplemental Indenture are
hereinafter collectively called the "Indenture") with the Trustee, for the
purposes of issuing its senior notes, unlimited as to principal amount, to bear
such rates of interest, to mature at such time or times, to be issued in one or
more series and to have such other provisions as authorized by or pursuant to
the authority granted in one or more resolutions of the Board of Directors of
the Company; and

                  WHEREAS, the Company proposes to issue $450,000,000 aggregate
principal amount of its 6.75% Senior Notes due 2011 (such senior notes being
referred to herein as the "Senior Notes" and all references to Securities in the
Base Indenture shall be deemed to refer also to the Senior Notes unless the
context otherwise provides); and

                  WHEREAS, Section 901 of the Base Indenture provides that
without the consent of the Holders of the Securities of any series issued under
the Base Indenture, the Company, when authorized by a Board Resolution, and the
Trustee may enter into one or more indentures supplemental to the Base Indenture
to, among other things, establish the form or terms of securities of any series
as permitted by Sections 201 and 301 thereof; and

                  WHEREAS, the entry into this First Supplemental Indenture by
the parties hereto is in all respects authorized by the provisions of the Base
Indenture;

                  WHEREAS, all things necessary have been done to make this
First Supplemental Indenture, when executed and delivered by the Company, the
legal, valid and binding agreement of the Company, in accordance with its terms.

                                      -1-
<PAGE>   3

                  NOW, THEREFORE, THIS FIRST SUPPLEMENTAL INDENTURE WITNESSETH:

                  The parties hereto mutually covenant and agree as follows:

                  SECTION 1. The Base Indenture is hereby amended solely with
respect to the Senior Notes, except as otherwise expressly provided herein, as
follows:

                  (A)      By amending Section 101 to replace in whole the
                           following definitions thereto in lieu of the
                           corresponding existing definitions, so that in the
                           event of a conflict with the definition of terms in
                           the Base Indenture, the following definitions shall
                           control:

                           "Independent Investment Banker" means either Banc of
                  America Securities LLC or Merrill Lynch, Pierce, Fenner &
                  Smith Incorporated and their respective successors or both, or
                  if both firms are unwilling or unable to select the Comparable
                  Treasury Issue, an independent investment banking institution
                  of national standing appointed by the Trustee after
                  consultation with the Company.

                           "Reference Treasury Dealer" means (1) each of Banc of
                  America Securities LLC and Merrill Lynch, Pierce, Fenner &
                  Smith Incorporated and their respective successors, provided,
                  however, that if any of the foregoing shall cease to be a
                  primary U.S. Government securities dealer in New York City (a
                  "Primary Treasury Dealer"), the Company will substitute for
                  such underwriter another Primary Treasury Dealer and (2) any
                  other Primary Treasury Dealer selected by the Independent
                  Investment Banker after consultation with the Company.

                  (B)      By amending Section 401 by adding the following
                           sentence at the end of thereof as follows:

                           Both Section 402 (defeasance) and Section 403
                           (covenant defeasance) shall apply to the Senior
                           Notes.

                  (C)      By amending Section 901 by:

                           (a)      deleting the period at the end of clause (m)
                                    and inserting the following: "; and"; and

                           (b)      inserting the following clause after clause
                                    (m):

                                    "(n) to add additional Securities of the
                                    same class and series in one or more
                                    tranches from time to time."

                  (D)      By inserting after the first sentence in Section 301
                           the following:

                           "The aggregate principal amount of Senior Notes which
                           may be issued under this Indenture, as supplemented
                           by the First Supplemental Indenture, shall be
                           unlimited and the Company may issue additional senior
                           notes of the same class and series as the Senior

                                      -2-
<PAGE>   4

                           Notes in one or more tranches from time to time,
                           without notice to or the consent of existing holders
                           of the Securities (the "Additional Senior Notes").
                           The Additional Senior Notes shall have the same terms
                           as all other Senior Notes and all references in the
                           Indenture (as supplemented by the First Supplemental
                           Indenture) shall be deemed to also refer to the
                           Additional Senior Notes. The Additional Senior Notes
                           shall vote as a class with all other Senior Notes as
                           to matters as to which such Senior Notes have a
                           vote."

                  (E)      By amending Section 1101 to add the following at the
                           end of the first paragraph:

                           "The Senior Notes will be redeemable, as a whole or
                           in part, at the option of the Company, at any time or
                           from time to time, at a redemption price equal to the
                           greater of:

                           (1)      100% of the principal amount of the Senior
                                    Notes to be redeemed, and

                           (2)      the sum of the present values of the
                                    remaining scheduled payments of principal
                                    and interest on the Senior Notes to be
                                    redeemed discounted to the date of
                                    redemption on a semi-annual basis (assuming
                                    a 360-day year consisting of twelve 30-day
                                    months) at the applicable Treasury Rate,
                                    plus 20 basis points. Accrued interest will
                                    be payable to the redemption date."

                  (F)      By amending Exhibit A thereto by adding the following
                           at the end of the first paragraph:

                           "The principal amount of the Securities which may be
                           issued is unlimited. The Company may issue additional
                           senior notes of the same class and series as this
                           Security in one or more tranches from time to time
                           without notice to or the consent of the existing
                           holders of the Securities." These additional senior
                           notes are referred to in this Security as the
                           "Additional Securities" and all references to the
                           Securities in this Security or in the Indenture shall
                           include the Additional Securities. The Additional
                           Securities shall vote as a class with all other
                           Securities as to matters as to which such Securities
                           have a vote.

                  (G)      The form of Security attached as Exhibit A hereto
                           shall be the form of Senior Note for the series of
                           Senior Notes established by this First Supplemental
                           Indenture and the terms therein shall be incorporated
                           by reference into this First Supplemental Indenture.

                  SECTION 2. The Base Indenture, as supplemented and amended by
this First Supplemental Indenture, is in all respects ratified and confirmed,
and the Base Indenture and this First Supplemental Indenture shall be read,
taken and construed as one and the same instrument. All provisions included in
this First Supplemental Indenture supersede any similar provisions included in
the Base Indenture unless not permitted by law.

                                      -3-
<PAGE>   5

                  SECTION 3. If any provision hereof limits, qualifies or
conflicts with another provision hereof which is required to be included in this
First Supplemental Indenture by any of the provisions of the Trust Indenture
Act, such required provision shall control.

                  SECTION 4. All covenants and agreements in this First
Supplemental Indenture by the Company shall bind its successors and assigns,
whether so expressed or not.

                  SECTION 5. In case any provision in this First Supplemental
Indenture or in the Senior Notes shall be invalid, illegal or unenforceable, the
validity, legality and enforceability of the remaining provisions (or of the
other series of Senior Notes) shall not in any way be affected or impaired
thereby.

                  SECTION 6. Nothing in this First Supplemental Indenture,
expressed or implied, shall give to any Person, other than the parties hereto
and their successors hereunder, and the Holders of the Senior Notes any benefit
or any legal or equitable right, remedy or claim under this First Supplemental
Indenture.

                  SECTION 7. This First Supplemental Indenture and each Security
shall be deemed to a contract made under the laws of the State of New York and
this First Supplemental Indenture and each such Senior Note shall be governed by
and construed in accordance with the laws of the State of New York.

                  SECTION 8. All terms used in this First Supplemental Indenture
not otherwise defined herein that are defined in the Base Indenture shall have
the meanings set forth therein.

                  SECTION 9. This First Supplemental Indenture may be executed
in any number of counterparts, each of which shall be an original; but such
counterparts shall together constitute but one and the same instrument. Delivery
of an executed counterpart of a signature page hereto by facsimile or electronic
transmission shall be as effective as delivery of a manually executed
counterpart of this First Supplemental Indenture.

                                      -4-
<PAGE>   6

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

                               REPUBLIC SERVICES, INC.
                               as Issuer

                               By: /s/ Edward A. Lang III
                                  -----------------------------------
                                  Name:  Edward A. Lang III
                                  Title: Vice President, Finance and
                                         Treasurer

                               THE BANK OF NEW YORK
                               as Trustee

                               By: /s/ Paul Schmalzel
                                  -----------------------------------
                                  Name:  Paul Schmalzel
                                  Title:

                                      -5-
<PAGE>   7

                                                                       EXHIBIT A

                           [FORM OF FACE OF SECURITY]

THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE
HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A
NOMINEE OF A DEPOSITARY OR A SUCCESSOR DEPOSITARY. TRANSFERS OF THIS GLOBAL
SECURITY SHALL BE LIMITED TO TRANSFERS IN WHOLE, BUT NOT IN PART, TO NOMINEES OF
CEDE & CO. OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR'S NOMINEE AND TRANSFERS
OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN
ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN SECTION 306 OF THE INDENTURE.

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE COMPANY OR ITS
AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT AND ANY SUCH
CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME
AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE
TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

                                      A-1
<PAGE>   8

                             REPUBLIC SERVICES, INC.
                               ------------------

                               6.75% NOTE DUE 2011

                                                             CUSIP NO. 760759AC4

No. R-_____                                                 $___________________

                  Republic Services, Inc., a Delaware corporation (herein called
the "Company," which term includes any successor Person under the Indenture
hereinafter referred to), for value received, hereby promises to pay to Cede &
Co. or its registered assigns, the principal sum of __________ ($__________)
United States dollars on August 15, 2011, at the office or agency of the Company
referred to below, and to pay interest thereon from August 15, 2001, or from the
most recent Interest Payment Date to which interest has been paid or duly
provided for, semiannually on February 15 and August 15 in each year, commencing
February 15, 2002 at the rate of 6.75% per annum, in United States dollars,
until the principal hereof is paid or duly provided for. Interest shall be
computed on the basis of a 360-day year comprised of twelve 30-day months. The
principal amount of the Securities which may be issued is unlimited. The Company
may issue additional senior notes of the same class and series as this Security
in one or more tranches from time to time without notice to or the consent of
the existing holders of the Securities. These additional senior notes are
referred to in this Security as the "Additional Securities" and all references
to the Securities in this Security or in the Indenture shall include the
Additional Securities. The Additional Securities shall vote as a class with all
other Securities as to matters as to which such Securities have a vote.

                  The interest so payable, and punctually paid or duly provided
for, on any Interest Payment Date will, as provided in such Indenture, be paid
to the Person in whose name this Security is registered at the close of business
on the Regular Record Date for such interest, which shall be the February 1 or
August 1 (whether or not a Business Day), as the case may be, next preceding
such Interest Payment Date. Any such interest not so punctually paid, or duly
provided for, and interest on such defaulted interest at the interest rate borne
by the Securities, to the extent lawful, shall forthwith cease to be payable to
the Holder on such Regular Record Date, and may either be paid to the Person in
whose name this Security (or any Predecessor Securities) is registered at the
close of business on a Special Record Date for the payment of such defaulted
interest to be fixed by the Trustee, notice thereof shall be given to Holders of
Securities not less than 10 days prior to such Special Record Date, or be paid
at any time in any other lawful manner not inconsistent with the requirements of
any securities exchange on which the Securities may be listed, and upon such
notice as may be required by such exchange, all as more fully provided in this
Indenture.

                                      A-2
<PAGE>   9

                  Payment of the principal of, premium, if any, and interest on,
this Security, and exchange or transfer of this Security, will be made at the
office or agency of the Company in The City of New York maintained for such
purpose (which initially will be a corporate trust office of the Trustee or its
affiliate located at 101 Barclay Street, Floor 21W, New York, NY 10286), or at
such other office or agency as may be maintained for such purpose, in such coin
or currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts; PROVIDED, HOWEVER, that payment
of interest may be made at the option of the Company by check mailed to the
address of the Person entitled thereto as such address shall appear on the
Security Register.

                  Reference is hereby made to the further provisions of this
Security set forth on the reverse hereof, which further provisions shall for all
purposes have the same effect as if set forth at this place.

                                      A-3
<PAGE>   10

                  Unless the certificate of authentication hereon has been duly
executed by the Trustee referred to on the reverse hereof or by the
authenticating agent appointed as provided in the Indenture by manual signature
of an authorized signer, this Security shall not be entitled to any benefit
under the Indenture, or be valid or obligatory for any purpose.

                  IN WITNESS WHEREOF, the Company has caused this instrument to
be duly executed by the manual or facsimile signature of its authorized
officers.

                                    REPUBLIC SERVICES, INC.

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

                                      A-4
<PAGE>   11

                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

                  This is one of the 6.75% Notes due August 15, 2011 referred to
in the within-mentioned Indenture.

                                        THE BANK OF NEW YORK, as Trustee

                                        By:   _________________________________
                                              Authorized Signatory

Dated:  __________

                                      A-5
<PAGE>   12

                       [FORM OF REVERSE SIDE OF SECURITY]

                             REPUBLIC SERVICES, INC.

                               6.75% Note due 2011

                  This Security is one of a duly authorized issue of Securities
of the Company designated as its 6.75% Notes due 2011 (herein called the
"Securities"), limited (except as otherwise provided in the Indenture referred
to below) in aggregate principal amount to $__________, issued under and subject
to the terms of an indenture (herein called the "Indenture") dated as of August
15, 2001, between the Company and The Bank of New York, as trustee (herein
called the "Trustee," which term includes any successor trustee under the
Indenture), as supplemented by a First Supplemental Indenture, dated as of
August 15, 2001, to which Indenture and all indentures supplemental thereto
reference is hereby made for a statement of the respective rights, limitations
of rights, duties, obligations and immunities thereunder of the Company, the
Trustee and the Holders of the Securities, and of the terms upon which the
Securities are, and are to be, authenticated and delivered.

                  The Securities may be redeemed at any time, at the option of
the Company, in whole or in part, at any time and from time to time, upon not
less than 30 and not more than 60 days' notice to the Holders thereof as
provided in the Indenture, at a Redemption Price equal to the greater of (1)
100% of the principal amount of the Securities to be redeemed and (2) the sum of
the present values of the remaining scheduled payments of principal and interest
thereon discounted to the Redemption Date on a semiannual basis (assuming a
360-day year consisting of twelve 30-day months) at the applicable Treasury
Rate, plus 20 basis points, plus, in each case, accrued interest to the
Redemption Date (subject to the right of holders of record of such Securities on
relevant record dates to receive interest due on an interest payment date), if
any.

                  If less than all of the Securities are to be redeemed, the
Trustee shall select, not more than 60 nor less than 30 days before the
Redemption Date, the Securities or portions thereof to be redeemed on a pro rata
basis, by lot or by any other method the Trustee shall deem fair and
appropriate.

                  In the case of any redemption of Securities in accordance with
the Indenture, interest installments whose Stated Maturity is on or prior to the
Redemption Date will be payable to the Holders of such Securities of record as
of the close of business on the relevant Regular Record Date or Special Record
Date referred to on the face hereof. Securities (or portions thereof) for whose
redemption and payment provision is made in accordance with the Indenture shall
cease to bear interest from and after the Redemption Date.

                                      A-6
<PAGE>   13

                  In the event of redemption or repurchase of this Security in
accordance with the Indenture in part only, a new Security or Securities for the
unredeemed portion hereof shall be issued in the name of the Holder hereof upon
the cancellation hereof.

                  If an Event of Default shall occur and be continuing, the
principal amount of all the Securities may be declared due and payable in the
manner and with the effect provided in the Indenture.

                  The Indenture contains provisions for defeasance at any time
of (a) the entire Indebtedness on the Securities and (b) certain covenants and
Defaults and Events of Default, in each case upon compliance with certain
conditions set forth therein.

                  The Indenture permits, with certain exceptions (including
certain amendments permitted without the consent of any Holders and certain
amendments which required the consent of all of the Holders) as therein
provided, the amendment thereof and the modification of the rights and
obligations of the Company and the rights of the Holders under the Indenture and
the Securities at any time by the Company and the Trustee with the consent of
the Holders of at least a majority in aggregate principal amount of the
Securities of all series at the time Outstanding that are affected (voting as
one class). The Indenture also contains provisions permitting the Holders of at
least a majority in aggregate principal amount of the Securities (100% of the
Holders in certain circumstances) of all series at the time Outstanding that are
affected (voting as one class), on behalf of the Holders of all the Securities
of such affected series, to waive compliance by the Company with certain
provisions of the Indenture and the Securities of such series and certain past
Defaults and Events of Default under the Indenture and the Securities and their
consequences. Any such consent or waiver by or on behalf of the Holder of this
Security shall be conclusive and binding upon such Holder and upon all future
Holders of this Security and of any Security issued upon the registration of
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent or waiver is made upon this Security.

                  No reference herein to the Indenture and no provision of this
Security or of the Indenture shall alter or impair the obligation of the Company
or any other obligor on the Securities (in the event such other obligor is
obligated to make payments in respect of the Securities), which is absolute and
unconditional, to pay the principal of, and premium, if any, and interest on,
this Security at the times, place, and rate, and in the coin or currency, herein
prescribed.

                  As provided in the Indenture and subject to certain
limitations therein set forth, the transfer of this Security is registrable in
the Security Register, upon surrender of this Security for registration of
transfer at the office or agency of the Company in the Borough of Manhattan, The
City of New York, duly endorsed by, or accompanied by a written instrument of
transfer in form satisfactory to the Company and the Security Registrar duly

                                      A-7
<PAGE>   14

executed by, the Holder hereof or its attorney duly authorized in writing, and
thereupon one or more new Securities, of authorized denominations and for the
same aggregate principal amount, will be issued to the designated transferee or
transferees.

                  The Securities in certificated form are issuable only in
registered form without coupons in denominations of $1,000 and any integral
multiple thereof. As provided in the Indenture and subject to certain
limitations therein set forth, the Securities are exchangeable for a like
aggregate principal amount of Securities of a differing authorized denomination,
as requested by the Holder surrendering the same.

                  Except as indicated in the Indenture, 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 payable in connection therewith.

                  Prior to due presentment of this 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 this Security is registered as the owner
hereof for all purposes, whether or not this Security is overdue, and neither
the Company, the Trustee nor any such agent shall be affected by notice to the
contrary.

                  THIS SECURITY SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE
WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT GIVING EFFECT TO THE TO CONFLICT
OF LAWS PRINCIPLES THEREOF.

All terms used in this Security which are defined in the Indenture and not
otherwise defined herein shall have the meanings assigned to them in the
Indenture.

                                      A-8<PAGE>   1
                                                                     EXHIBIT 4.3

                                FACE OF SECURITY

THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE
HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A
NOMINEE OF A DEPOSITARY OR A SUCCESSOR DEPOSITARY. TRANSFERS OF THIS GLOBAL
SECURITY SHALL BE LIMITED TO TRANSFERS IN WHOLE, BUT NOT IN PART, TO NOMINEES OF
CEDE & CO. OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR'S NOMINEE AND TRANSFERS
OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN
ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN SECTION 306 OF THE INDENTURE.

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE COMPANY OR ITS
AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT AND ANY SUCH
CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME
AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE
TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

<PAGE>   2

                             REPUBLIC SERVICES, INC.

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

                               6.75% NOTE DUE 2011

                                                             CUSIP NO. 760759AC4

No. R-1                                                      $400,000,000

                  Republic Services, Inc., a Delaware corporation (herein called
the "Company," which term includes any successor Person under the Indenture
hereinafter referred to), for value received, hereby promises to pay to Cede &
Co. or its registered assigns, the principal sum of four hundred million
($400,000,000) United States dollars on August 15, 2011, at the office or agency
of the Company referred to below, and to pay interest thereon from August 15,
2001, or from the most recent Interest Payment Date to which interest has been
paid or duly provided for, semiannually on February 15 and August 15 in each
year, commencing February 15, 2002 at the rate of 6.75% per annum, in United
States dollars, until the principal hereof is paid or duly provided for.
Interest shall be computed on the basis of a 360-day year comprised of twelve
30-day months. The principal amount of the Securities which may be issued is
unlimited. The Company may issue additional senior notes of the same class and
series as this Security in one or more tranches from time to time without notice
to or the consent of the existing holders of the Securities. These additional
senior notes are referred to in this Security as the "Additional Securities" and
all references to the Securities in this Security or in the Indenture shall
include the Additional Securities. The Additional Securities shall vote as a
class with all other Securities as to matters as to which such Securities have a
vote.

                  The interest so payable, and punctually paid or duly provided
for, on any Interest Payment Date will, as provided in such Indenture, be paid
to the Person in whose name this Security is registered at the close of business
on the Regular Record Date for such interest, which shall be the February 1 or
August 1 (whether or not a Business Day), as the case may be, next preceding
such Interest Payment Date. Any such interest not so punctually paid, or duly
provided for, and interest on such defaulted interest at the interest rate borne
by the Securities, to the extent lawful, shall forthwith cease to be payable to
the Holder on such Regular Record Date, and may either be paid to the Person in
whose name this Security (or any Predecessor Securities) is registered at the
close of business on a Special Record Date for the payment of such defaulted
interest to be fixed by the Trustee, notice thereof shall be given to Holders of
Securities not less than 10 days prior to such Special Record Date, or be paid
at any time in any other lawful manner not inconsistent with the requirements of
any securities exchange on which the Securities may be listed, and upon such
notice as may be required by such exchange, all as more fully provided in this
Indenture.

                                      -2-
<PAGE>   3

                  Payment of the principal of, premium, if any, and interest on,
this Security, and exchange or transfer of this Security, will be made at the
office or agency of the Company in The City of New York maintained for such
purpose (which initially will be a corporate trust office of the Trustee or its
affiliate located at 101 Barclay Street, Floor 21W, New York, NY 10286), or at
such other office or agency as may be maintained for such purpose, in such coin
or currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts; PROVIDED, HOWEVER, that payment
of interest may be made at the option of the Company by check mailed to the
address of the Person entitled thereto as such address shall appear on the
Security Register.

                  Reference is hereby made to the further provisions of this
Security set forth on the reverse hereof, which further provisions shall for all
purposes have the same effect as if set forth at this place.

                                      -3-
<PAGE>   4

                  Unless the certificate of authentication hereon has been duly
executed by the Trustee referred to on the reverse hereof or by the
authenticating agent appointed as provided in the Indenture by manual signature
of an authorized signer, this Security shall not be entitled to any benefit
under the Indenture, or be valid or obligatory for any purpose.

                  IN WITNESS WHEREOF, the Company has caused this instrument to
be duly executed by the manual or facsimile signature of its authorized
officers.

                                      REPUBLIC SERVICES, INC.

                                      By: /s/ Edward A. Lang III
                                         -------------------------------------
                                            Name: Edward A. Lang III
                                            Title: Vice President, Finance and
                                                     Treasurer

                                      -4-
<PAGE>   5

                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

                  This is one of the 6.75% Notes due August 15, 2011 referred to
in the within-mentioned Indenture.

                                           THE BANK OF NEW YORK, as Trustee

                                           By: /s/ Paul Schmalzel
                                               ---------------------------------
                                               Authorized Signatory

Dated:  August 15, 2001

                                      -5-
<PAGE>   6

                            REVERSE SIDE OF SECURITY

                             REPUBLIC SERVICES, INC.

                               6.75% Note due 2011

                  This Security is one of a duly authorized issue of Securities
of the Company designated as its 6.75% Notes due 2011 (herein called the
"Securities"), limited (except as otherwise provided in the Indenture referred
to below) in aggregate principal amount to $400,000,000, issued under and
subject to the terms of an indenture (herein called the "Indenture") dated as of
August 15, 2001, between the Company and The Bank of New York, as trustee
(herein called the "Trustee," which term includes any successor trustee under
the Indenture), as supplemented by a First Supplemental Indenture, dated as of
August 15, 2001, to which Indenture and all indentures supplemental thereto
reference is hereby made for a statement of the respective rights, limitations
of rights, duties, obligations and immunities thereunder of the Company, the
Trustee and the Holders of the Securities, and of the terms upon which the
Securities are, and are to be, authenticated and delivered.

                  The Securities may be redeemed at any time, at the option of
the Company, in whole or in part, at any time and from time to time, upon not
less than 30 and not more than 60 days' notice to the Holders thereof as
provided in the Indenture, at a Redemption Price equal to the greater of (1)
100% of the principal amount of the Securities to be redeemed and (2) the sum of
the present values of the remaining scheduled payments of principal and interest
thereon discounted to the Redemption Date on a semiannual basis (assuming a
360-day year consisting of twelve 30-day months) at the applicable Treasury
Rate, plus 20 basis points, plus, in each case, accrued interest to the
Redemption Date (subject to the right of holders of record of such Securities on
relevant record dates to receive interest due on an interest payment date), if
any.

                  If less than all of the Securities are to be redeemed, the
Trustee shall select, not more than 60 nor less than 30 days before the
Redemption Date, the Securities or portions thereof to be redeemed on a pro rata
basis, by lot or by any other method the Trustee shall deem fair and
appropriate.

                  In the case of any redemption of Securities in accordance with
the Indenture, interest installments whose Stated Maturity is on or prior to the
Redemption Date will be payable to the Holders of such Securities of record as
of the close of business on the relevant Regular Record Date or Special Record
Date referred to on the face hereof. Securities (or portions thereof) for whose
redemption and payment provision is made in accordance with the Indenture shall
cease to bear interest from and after the Redemption Date.

                                      -6-
<PAGE>   7

                  In the event of redemption or repurchase of this Security in
accordance with the Indenture in part only, a new Security or Securities for the
unredeemed portion hereof shall be issued in the name of the Holder hereof upon
the cancellation hereof.

                  If an Event of Default shall occur and be continuing, the
principal amount of all the Securities may be declared due and payable in the
manner and with the effect provided in the Indenture.

                  The Indenture contains provisions for defeasance at any time
of (a) the entire Indebtedness on the Securities and (b) certain covenants and
Defaults and Events of Default, in each case upon compliance with certain
conditions set forth therein.

                  The Indenture permits, with certain exceptions (including
certain amendments permitted without the consent of any Holders and certain
amendments which required the consent of all of the Holders) as therein
provided, the amendment thereof and the modification of the rights and
obligations of the Company and the rights of the Holders under the Indenture and
the Securities at any time by the Company and the Trustee with the consent of
the Holders of at least a majority in aggregate principal amount of the
Securities of all series at the time Outstanding that are affected (voting as
one class). The Indenture also contains provisions permitting the Holders of at
least a majority in aggregate principal amount of the Securities (100% of the
Holders in certain circumstances) of all series at the time Outstanding that are
affected (voting as one class), on behalf of the Holders of all the Securities
of such affected series, to waive compliance by the Company with certain
provisions of the Indenture and the Securities of such series and certain past
Defaults and Events of Default under the Indenture and the Securities and their
consequences. Any such consent or waiver by or on behalf of the Holder of this
Security shall be conclusive and binding upon such Holder and upon all future
Holders of this Security and of any Security issued upon the registration of
transfer hereof or in exchange herefor or in lieu hereof whether or not notation
of such consent or waiver is made upon this Security.

                  No reference herein to the Indenture and no provision of this
Security or of the Indenture shall alter or impair the obligation of the Company
or any other obligor on the Securities (in the event such other obligor is
obligated to make payments in respect of the Securities), which is absolute and
unconditional, to pay the principal of, and premium, if any, and interest on,
this Security at the times, place, and rate, and in the coin or currency, herein
prescribed.

                  As provided in the Indenture and subject to certain
limitations therein set forth, the transfer of this Security is registrable in
the Security Register, upon surrender of this Security for registration of
transfer at the office or agency of the Company in the Borough of Manhattan, The
City of New York, duly endorsed by, or accompanied by a written instrument of

                                      -7-
<PAGE>   8

transfer in form satisfactory to the Company and the Security Registrar duly
executed by, the Holder hereof or its attorney duly authorized in writing, and
thereupon one or more new Securities, of authorized denominations and for the
same aggregate principal amount, will be issued to the designated transferee or
transferees.

                  The Securities in certificated form are issuable only in
registered form without coupons in denominations of $1,000 and any integral
multiple thereof. As provided in the Indenture and subject to certain
limitations therein set forth, the Securities are exchangeable for a like
aggregate principal amount of Securities of a differing authorized denomination,
as requested by the Holder surrendering the same.

                  Except as indicated in the Indenture, 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 payable in connection therewith.

                  Prior to due presentment of this 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 this Security is registered as the owner
hereof for all purposes, whether or not this Security is overdue, and neither
the Company, the Trustee nor any such agent shall be affected by notice to the
contrary.

                  THIS SECURITY SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE
WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT GIVING EFFECT TO THE TO CONFLICT
OF LAWS PRINCIPLES THEREOF.

                  All terms used in this Security which are defined in the
Indenture and not otherwise defined herein shall have the meanings assigned to
them in the Indenture.

                                      -8-

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