The text of subsecs. (a), (b), and (c) of section 2321 of this title, which were transferred to this section and amended by Pub. L. 116–283, § 1833(h), was based on Pub. L. 100–26, § 7(a)(5)(A)(ii), Apr. 21, 1987, 101 Stat. 276.

A prior section 3781, act Aug. 10, 1956, ch. 1041, 70A Stat. 218; Pub. L. 86–616, § 2(a), July 12, 1960, 74 Stat. 386, authorized Secretary of the Army to convene at any time a board of officers to review record of any commissioned officer on active list of Regular Army to determine whether he should be required, because of substandard performance of duty, to show cause for his retention on active list, prior to repeal by Pub. L. 96–513, title II, § 213, title VII, § 701, Dec. 12, 1980, 94 Stat. 2885, 2955, effective Sept. 15, 1981. See section 1181(a) of this title.

2021—Subsec. (a). Pub. L. 116–283, § 1833(h)(1), (2), transferred subsec. (a) of section 2321 of this title to this section and substituted “by Subchapter” for “by Section” in heading and “This subchapter” for “This section” in text.

Subsec. (b). Pub. L. 116–283, § 1833(h)(1), (3), transferred subsec. (b) of section 2321 of this title to this section and substituted “this subchapter” for “this section” and “(as defined in section 3786 of this title) asserted” for “(as defined in subsection (i)) asserted”.

Subsec. (c). Pub. L. 116–283, § 1833(h)(1), (4)(A), (C), transferred subsec. (c) of section 2321 of this title to this section and realigned margins of pars. (1) and (2).

Subsec. (c)(1). Pub. L. 116–283, § 1833(h)(4)(B), substituted “this subchapter” for “this section”.

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.