Pub. L. 85-117, tit. VI, sec. 601

Sec. 601. During the current fiscal year, the Secretary of Defense and the Secretaries of the Air Force, Army, and Navy, respectively, if they should deem it advantageous to the national defense, and if in their opinions, the existing facilities of the Department of Defense are inadequate, are authorized to procure services in accordance with section 15 of the Act of August 2, 1946 (5 U. S. C. 55a), but at rates for individuals not in excess of $50 per day under regulations prescribed by the Secretary of Defense, and to pay in connection therewith travel expenses of individuals, including actual transportation and per diem in lieu of subsistence while traveling from their homes or places of business to official duty station and return as may be authorized by law; Provided, That such contracts may be renewed annually.