The text of subsec. (b) of section 2333 of this title, which was transferred to this section and amended by Pub. L. 116–283, § 1810(b)(2), was based on Pub. L. 109–364, div. A, title VIII, § 854(a)(1), Oct. 17, 2006, 120 Stat. 2343.

2021—Pub. L. 116–283, § 1810(b)(2), transferred subsec. (b) of section 2333 of this title to this section and, in introductory provisions, struck out subsec. (b) designation and heading “Requirements Definition Matters Covered” at beginning and substituted “section 3151 of this title” for “subsection (a)”.

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.