MIL-STD-1520C, MILITARY STANDARD: CORRECTIVE ACTION AND DISPOSITION SYSTEM FOR NONCONFORMING MATERIAL (24 JUN 1986) [NO S/S DOCUMENT]., This standard sets forth the requirements for a cost-effective corrective action and disposition system for nonconforming material. It defines the requirements relative to the interface between the contractor and the contract administrative office on nonconforming material. This standard sets forth the DOD contracting activity requirements for a properly constituted Material Review Board (MRB).