Section, added Pub. L. 108–375, div. B, title XXVIII, § 2804(a)(1), Oct. 28, 2004, 118 Stat. 2121; amended Pub. L. 109–364, div. B, title XXVIII, § 2808(a), (b)(1), Oct. 17, 2006, 120 Stat. 2469; Pub. L. 112–239, div. A, title X, § 1081(2), Jan. 2, 2013, 126 Stat. 1960; Pub. L. 113–66, div. B, title XXVIII, § 2803(a), Dec. 26, 2013, 127 Stat. 1006; Pub. L. 115–91, div. A, title X, § 1051(a)(22), Dec. 12, 2017, 131 Stat. 1562, related to construction requirements pertaining to antiterrorism and force protection or urban-training operations.