Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)AFRL/RIGA 525 Brooks Rd. Rome NY 13441-4505 The program was designed to promote and perform extensive research in the transformation of concepts that originated in the domain of fault tolerance to the then emerging area of information assurance. When a computing technique is placed in an information assurance scenario, the technique must be guarded from an attacker. A basic tenet of the ACRC was to enforce the system properties of fault-tolerant computing even in the presence of attack in order to ensure system integrity and availability. SPONSOR/MONITOR'S ACRONYM(S)N