The date of the enactment of this section and the date of the enactment of this paragraph, referred to in subsecs. (b)(4) and (d)(1)(B), are the date of enactment of Pub. L. 109–58, which was approved Aug. 8, 2005.

The Rural Electrification Act of 1936, referred to in subsec. (e)(2)(A)(iii), is act May 20, 1936, ch. 432, 49 Stat. 1363, which is classified generally to chapter 31 (§ 901 et seq.) of Title 7, Agriculture. For complete classification of this Act to the Code, see section 901 of Title 7 and Tables.

2018—Subsec. (b)(4). Pub. L. 115–123, § 40501(a)(1), inserted “or any amendment to” after “enactment of”.

Subsec. (b)(5). Pub. L. 115–123, § 40501(a)(2), added par. (5).

Subsecs. (e), (f). Pub. L. 115–123, § 40501(b)(1), added subsec. (e) and redesignated former subsec. (e) as (f).

2007—Subsec. (b)(2). Pub. L. 110–172 reenacted heading without change and amended text generally. Prior to amendment, text read as follows: “The national megawatt capacity limitation shall be 6,000 megawatts.”

2005—Subsec. (c)(2). Pub. L. 109–135, § 402(d)(1), amended heading and text of par. (2) generally. Prior to amendment, text read as follows: “Rules similar to the rules of section 45(b)(1) shall apply for purposes of this section.”

Subsec. (e). Pub. L. 109–135, § 402(d)(2), struck out “(2),” after “(1),”.

Pub. L. 115–123, div. D, title I, § 40501(c), Feb. 9, 2018, 132 Stat. 154, provided that:

Amendment by Pub. L. 110–172 effective as if included in the provisions of the Energy Policy Act of 2005, Pub. L. 109–58, to which such amendment relates, see section 6(e) of Pub. L. 110–172, set out as a note under section 30C of this title.

Amendment by Pub. L. 109–135 effective as if included in the provision of the Energy Policy Act of 2005, Pub. L. 109–58, to which such amendment relates, see section 402(m)(1) of Pub. L. 109–135, set out as a note under section 23 of this title.

Section applicable to production in taxable years beginning after Aug. 8, 2005, see section 1306(d) of Pub. L. 109–58, set out as an Effective Date of 2005 Amendment note under section 38 of this title.