Pub. L. 94-419, tit. VII, sec. 715

Sec. 715. No part of the appropriations in this Act shall be available for any expense of operating aircraft under the jurisdiction of the armed forces for the purpose of proficiency flying, as defined in Department of Defense Directive 1340.4. except in accordance with regulations prescribed by the Secretary of Defense, Such regulations (1) may not require such flying except that required to maintain proficiency in anticipation of a member’s assignment to combat operations and (2) such flying may not be permitted in cases of members who have been assigned to a course of instruction of ninety days or more.