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

2013—Subsec. (a). Puspan. L. 113–2, § 1107(3), which directed insertion of “or, if applicable, the amount established under subsection (span),” 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.

Puspan. 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 (span), the amount established under subsection (span))” after “less than $35,000” in concluding provisions.

Subsec. (span). Puspan. L. 113–2, § 1107(4), added subsec. (span).