A prior section 5189, Pub. L. 93–288, title IV, § 419, May 22, 1974, 88 Stat. 159, related to alternate contributions, prior to repeal by Pub. L. 100–707, § 106(k).

2022—Subsec. (a). Pub. L. 117–189, § 2(a)(1), substituted “$1,000,000” for “$35,000” in two places in concluding provisions.

Subsec. (b)(3). Pub. L. 117–189, § 2(a)(2), inserted “and report” after “Review” in heading and “and submit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Homeland Security and Governmental Affairs of the Senate a report regarding such review, including any recommendations developed pursuant to such review” after “under this section” in text.

2013—Subsec. (a). Pub. L. 113–2, § 1107(3), which directed insertion of “or, if applicable, the amount established under subsection (b),” after “$35,000 amount” the second place appearing, was executed by making the insertion after “$35,000 amount” the only place that phrase appeared, to reflect the probable intent of Congress.

Pub. L. 113–2, § 1107(1), (2), designated existing provisions as subsec. (a), inserted heading, and inserted “(or, if the Administrator has established a threshold under subsection (b), the amount established under subsection (b))” after “less than $35,000” in concluding provisions.

Subsec. (b). Pub. L. 113–2, § 1107(4), added subsec. (b).

Pub. L. 117–189, § 2(b), Oct. 10, 2022, 136 Stat. 2204, provided that: “The amendments made by subsection (a) [amending this section] shall apply with respect to any amounts appropriated after the date of enactment of this Act [Oct. 10, 2022].”