Section, acts Oct. 10, 1940, ch. 851, Sec. 1, 54 Stat. 1109; June 28, 1941, ch. 258, titles II, III, IV, 55 Stat. 281, 289, 292, 302; June 8, 1942, ch. 396, 56 Stat. 347; July 2, 1942, ch. 472, titles II, III, IV, 56 Stat. 483, 500, 505; June 28, 1943, ch. 173, titles I, II, 57 Stat. 236, 243; June 26, 1944, ch. 277, titles I, II, 58 Stat. 351, 358; June 13, 1945, ch. 189, 59 Stat. 256; July 1, 1946, ch. 530, 60 Stat. 405; June 30, 1947, ch. 166, title II, Sec. 204, 61 Stat. 208; June 30, 1949, ch. 288, title I, Sec. 103, 104(a), 63 Stat. 380, which excepted from provisions of section 5 of this title a number of specified Government departments and agencies, when purchases or services were not in excess of certain specified amounts up to $500.

Another provision of title III of act July 2, 1942, ch. 472, 56 Stat. 493, which also had been shown as one of the sources of this former section, made an exception with respect to purchases or services rendered for the Office of the Administrator of Civil Aeronautics, when the aggregate amount involved did not exceed $100. That provision was not repealed, but, if it did not expire with that act, which was an appropriation act, it was superseded by section 5 of this title, as amended.

A prior section 6, acts Feb. 27, 1893, ch. 168, 27 Stat. 485; Mar. 1, 1899, ch. 325, 30 Stat. 957; Mar. 2, 1911, ch. 192, 36 Stat. 975; May 18, 1916, ch. 125, 39 Stat. 126; Mar. 1, 1919, ch. 86, 40 Stat. 1262; May 29, 1920, ch. 214, 41 Stat. 677; June 12, 1922, ch. 218, 42 Stat. 638; Feb. 13, 1923, ch. 72, 42 Stat. 1244; Feb. 15, 1934, ch. 13, 48 Stat. 351, related to exceptions to the requirements of section 5 of this title, prior to repeal by act Oct. 10, 1940, ch. 851, Sec. 4, 54 Stat. 1111. See sections 5, 6a, and 6b of this title