A prior section 1816 was renumbered sections 3732 and 3733 of this title.

Prior sections 1817 and 1817A were renumbered sections 3713 and 3714 of this title, respectively.

A prior section 1818, added Pub. L. 89–358, § 5(a), Mar. 3, 1966, 80 Stat. 25; amended Pub. L. 91–506, § 2(e), Oct. 23, 1970, 84 Stat. 1108; Pub. L. 93–569, § 8(6), (7), Dec. 31, 1974, 88 Stat. 1866, 1867; Pub. L. 94–324, § 4, June 30, 1976, 90 Stat. 720; Pub. L. 95–476, title I, § 106(a), Oct. 18, 1978, 92 Stat. 1499; Pub. L. 97–72, title III, § 303(g), Nov. 3, 1981, 95 Stat. 1060; Pub. L. 97–295, § 4(66), Oct. 12, 1982, 96 Stat. 1310, related to service after Jan. 31, 1955, and prior to Aug. 5, 1964, or after May 7, 1975, prior to repeal by Pub. L. 100–322, title IV, § 415(b)(3), May 20, 1988, 102 Stat. 551.

A prior section 1819 was renumbered section 3712 of this title.

A prior section 1820 was renumbered section 3720 of this title.