This subpart prescribes policies and procedures for implementing section 503 of the Rehabilitation Act of 1973, as amended (29 U.S.C. 793) (the Act); Executive Order 11758, January 15,1974; and the regulations of the Secretary of Labor (41 CFR Part 60-741). In this subpart, the terms "contract" and "contractor" include "subcontract" and "subcontractor."