Section, acts Aug. 10, 1956, ch. 1041, 70A Stat. 497; Sept. 2, 1958, Pub. L. 85–861, § 1(157), 72 Stat. 1513; Oct. 13, 1964, Pub. L. 88–647, title III, § 301(20), 78 Stat. 1073, prescribed authorized strength of Air Force in members on active duty, exclusive of certain categories, and authorized daily average strength of Air Force in members on active duty during fiscal year, exclusive of certain categories.