MIL-STD-1535A, MILITARY STANDARD: SUPPLIER QUALITY ASSURANCE PROGRAM REQUIREMENTS (01 FEB 1974) [NO S/S DOCUMENT]., The purpose of this standard is to establish contractor requirements and procedures for an effective quality assurance program for government acquisitions involving subcontracts when Higher-level Quality Assurance requirements, PAR 46.202-3, and this standard are requirements of the prime contract. The prime contractor shall tailor and include these requirements in purchase documents to suppliers.