§ 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.)