text: **EXHIBIT 32.1**
  
  **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 Annual Report on Form 10-K of Republic Services, Inc. (the ""Company'') for 
  the period ended December 31, 2004 as Ñled with the Securities and Exchange Commission on the date hereof 
  (the ""Report''), I, James E. O'Connor, Chairman and Chief Executive OÇcer of the Company, hereby 
  certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 
  2002, that to the best of my knowledge: 
  
  (1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities 
  Exchange Act of 1934, as amended; and 
  
  (2) The information contained in the Report fairly presents, in all material respects, the Ñnancial 
  condition and results of operations of the Company. 
  
  February 25, 2005 