0000950129-02-001250 10-K 4 20011231 20020312 WASTE MANAGEMENT INC 0000823768 4953 731309529 DE 1231 10-K 34 001-12154 02573493 1001 FANNIN STREET STE 4000 HOUSTON TX 77002 7135126200 1001 FANNIN STREET SUITE 4000 HOUSTON TX 77002 USA WASTE SERVICES INC 19920703 10-K 1 h93477e10-k.txt WASTE MANAGEMENT INC - DECEMBER 31 2001 EX-12.1 3 h93477ex12-1.txt COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES EX-21.1 4 h93477ex21-1.txt SUBSIDIARIES OF THE REGISTRANT EX-23.1 5 h93477ex23-1.txt CONSENT OF ARTHUR ANDERSEN LLP