The text of subsec. (a) of section 2326 of this title, which was transferred to this section and amended by Pub. L. 116–283, § 1819(b), was based on Pub. L. 99–500, § 101(c) [title X, § 908(d)(1)(A)], Oct. 18, 1986, 100 Stat. 1783–82, 1783–140, and Pub. L. 99–591, § 101(c) [title X, § 908(d)(1)(A)], Oct. 30, 1986, 100 Stat. 3341–82, 3341–140; Pub. L. 99–661, div. A, title IX, formerly title IV, § 908(d)(1)(A), Nov. 14, 1986, 100 Stat. 3920, renumbered title IX, Pub. L. 100–26, § 3(5), Apr. 21, 1987, 101 Stat. 273. Pub. L. 99–500, Pub. L. 99–591, and Pub. L. 99–661 added identical subsections.

A prior section 3371, added Pub. L. 85–861, § 1(80)(E), Sept. 2, 1958, 72 Stat. 1475, related to promotion of brigadier generals and colonels not assigned to units, prior to repeal by Pub. L. 103–337, div. A, title XVI, §§ 1629(a)(1), 1691(b)(1), Oct. 5, 1994, 108 Stat. 2963, 3026, effective Oct. 1, 1996. See section 14301 et seq. of this title.

2021—Pub. L. 116–283, § 1819(b), transferred subsec. (a) of section 2326 of this title to this section and struck out subsec. (a) designation and heading “In General” at beginning.

Section and amendment by Pub. L. 116–283 effective Jan. 1, 2022, with additional provisions for delayed implementation and applicability of existing law, see section 1801(d) of Pub. L. 116–283, set out as an Effective Date of 2021 Amendment note preceding section 3001 of this title.