Section 9501 of the American Rescue Plan Act of 2021, referred to in text, is section 9501 of Pub. L. 117–2, which is set out as a note under section 4980B of this title.

Pub. L. 117–2, title IX, § 9501(b)(4)(C), Mar. 11, 2021, 135 Stat. 138, provided that: “The amendments made by this paragraph [enacting this section] shall apply to taxable years ending after the date of the enactment of this Act [Mar. 11, 2021].”