§3131. Availability of appropriations

(a) Funds appropriated to the Department of Defense for research and development remain available for obligation for a period of two consecutive years.

(b) Funds appropriated to the Department of Defense for research and development may be used-

(1) for the purposes of section 4141 of this title; and

(2) for purposes related to research and development for which expenditures are specifically authorized in other appropriations of the Department of Defense.

(Added Pub. L. 97–258, §2(b)(3)(B), Sept. 13, 1982, 96 Stat. 1052 , §2361; renumbered §2351 and amended Pub. L. 100–370, §1(g)(1), July 19, 1988, 102 Stat. 846 ; renumbered §3131 and amended Pub. L. 116–283, div. A, title XVIII, §§1809(b), 1883(b)(2), Jan. 1, 2021, 134 Stat. 4161 , 4294; Pub. L. 117–81, div. A, title XVII, §1701(d)(1), Dec. 27, 2021, 135 Stat. 2136 .)

Historical and Revision Notes
1982 Act

Revised section	Source (U.S. Code)	Source (Statutes at Large)
2361	31:649c(2).	Aug. 10, 1956, ch. 1041, §40(2), 70A Stat. 636 ; Nov. 17, 1971, Pub. L. 92–156, §201(b), 85 Stat. 424 .

The words "Unless otherwise provided in the appropriation Act concerned" are omitted as unnecessary and for consistency. The word "Funds" is substituted for "moneys" for consistency in title 10.

1988 Act

Subsection (a) is based on section 2361 of this title.

Subsection (b) is based on Pub. L. 99–190, §101(b) [title VIII, §8015], Dec. 19, 1985, 99 Stat. 1185 , 1205.

Editorial Notes

Amendments

2021-Pub. L. 116–283, §1809(b), renumbered section 2351 of this title as this section.

Subsec. (b)(1). Pub. L. 117–81, which directed the substitution of "section 4141" for "section 2353", could not be executed because of the intervening amendment by Pub. L. 116–283, §1883(b)(2). See note below.

Pub. L. 116–283, §1883(b)(2), substituted "section 4141" for "section 2353".

1988-Pub. L. 100–370 renumbered section 2361 of this title as section 2351, designated such provisions as subsec. (a), and added subsec. (b).

Statutory Notes and Related Subsidiaries

Effective Date of 2021 Amendment

Amendment by Pub. L. 117–81 to take effect immediately after the amendments made by title XVIII of Pub. L. 116–283 have taken effect, see section 1701(a)(3) of Pub. L. 117–81, set out in a note preceding section 3001 of this title and note below.

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 a note preceding section 3001 of this title.