2020—Subsec. (a)(2). Pub. L. 116–260, § 3006(b)(3)(A)(i), (ii), redesignated subpars. (C) to (E) as (A) to (C), respectively, and struck out former subpars. (A) and (B) which related to solar and wind energy programs.

Subsecs. (d) to (g). Pub. L. 116–260, § 3006(b)(3)(B), (C), redesignated subsecs. (e) to (g) as (d) to (f), respectively, and struck out former subsec. (d) which related to solar power.

2007—Subsec. (b)(4). Pub. L. 110–140, § 231(1), added par. (4).

Subsec. (c)(2) to (4). Pub. L. 110–140, § 231(2), in par. (2), substituted “$377,000,000” for “$251,000,000”, in par. (3), substituted “$398,000,000” for “$274,000,000”, and added par. (4).

Amendment by Pub. L. 110–140 effective on the date that is 1 day after Dec. 19, 2007, see section 1601 of Pub. L. 110–140, set out as an Effective Date note under section 1824 of Title 2, The Congress.