MIL-STD-1521B (NOTICE 3), MILITARY STANDARD: TECHNICAL REVIEWS AND AUDITS FOR SYSTEMS, EQUIPMENTS, AND COMPUTER SOFTWARE (10 APR 1995) [NO S/S DOCUMENT; USE SMC-S-21 IN LIEU OF MIL-STD-1521B]., MIL-STD-1521B (USAF), dated 4 June 1985, NOTICE 1 dated 19 December 1985, and NOTICE 2 dated 17 July 1992, are hereby canceled. Functional. Configuration Audit and physical Configuration Audit requirements were incorporated into MIL-STD-973, "Configuration Management." All other areas have been canceled without replacement.