Section was formerly classified to section 7257a of Title 42, The Public Health and Welfare, prior to renumbering by Pub. L. 108–136.
2015—Subsec. (c). Pub. L. 114–92 substituted “to a national security laboratory” for “to such laboratories”, “of not less than 5 percent and not more than 7 percent” for “not to exceed 6 percent”, and “by the laboratory” for “by such laboratories”.
2003—Pub. L. 108–136, § 3141(k)(6)(D), made technical amendment to section catchline.
Pub. L. 114–328, div. C, title XXXI, § 3119,