0000950129-02-001531 8-K 3 20020322 4 7 20020327 WASTE MANAGEMENT INC 0000823768 4953 731309529 DE 1231 8-K 34 001-12154 02587750 1001 FANNIN STREET STE 4000 HOUSTON TX 77002 7135126200 1001 FANNIN STREET SUITE 4000 HOUSTON TX 77002 USA WASTE SERVICES INC 19920703 8-K 1 h95377e8-k.txt WASTE MANAGEMENT, INC. DATED 3/22/2002 EX-16 3 h95377ex16.txt LETTER OF ARTHUR ANDERSON LLP RE: CHANGE EX-99.1 4 h95377ex99-1.txt PRESS RELEASE DATED MARCH 22, 2002