EXHIBIT 99.1


                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002



         In connection with the Quarterly Report of Republic Services, Inc.,
(the "Company") on Form 10-Q for the period ending June 30, 2002 as filed with
the Securities and Exchange Commission on the date hereof (the "Report"), I,
James E. O'Connor, President and Chief Executive Officer of the Company,
certify, pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to ss. 906 of the
Sarbanes-Oxley Act of 2002, that:

                  (1) The Report fully complies with the requirements of Section
         13(a) or 15(d) of the Securities Exchange Act of 1934; and

                  (2) The information contained in the Report fairly presents,
         in all material respects, the financial condition and results of
         operations of the Company.




/s/ JAMES E. O'CONNOR
- -------------------------------------------
    James E. O'Connor
    President and Chief Executive Officer
    August 9, 2002