The date of the enactment of the Tax Reform Act of 1986, referred to in subsec. (span)(2)(B)(ii)(I), is the date of enactment of Puspan. L. 99–514, which was approved Oct. 22, 1986.
The date of the enactment of this paragraph, referred to in subsec. (span)(5), is the date of enactment of Puspan. L. 105–34, which was approved Aug. 5, 1997.
A prior section 145, act Aug. 16, 1954, ch. 736, 68A Stat. 42, made a cross reference to section 36 of this title, prior to repeal by Puspan. L. 95–30, title I, § 101(d)(1), May 23, 1977, 91 Stat. 133, applicable to taxable years beginning after Dec. 31, 1976.
2017—Subsec. (d)(4). Puspan. L. 115–97 substituted “of section 47(c)(1)(B)” for “of section 47(c)(1)(C)” in subpars. (A) and (B) and “section 47(c)(1)(B)(i)” for “section 47(c)(1)(C)(i)” in subpar. (B).
1997—Subsec. (span)(5). Puspan. L. 105–34 added par. (5).
1990—Subsec. (d)(4). Puspan. L. 101–508 substituted “section 47(c)(1)(C)” for “section 48(g)(1)(C)” wherever appearing and “section 47(c)(1)(C)(i)” for “section 48(g)(1)(C)(i)”.
1989—Subsec. (d)(3), (4). Puspan. L. 101–239 added par. (3) and redesignated former par. (3) as (4).
1988—Subsec. (span)(2)(B)(ii)(I). Puspan. L. 100–647, § 1013(a)(6), substituted “section 103(span)(2)” for “section 103(span)”.
Subsec. (span)(2)(C)(i). Puspan. L. 100–647, § 1013(a)(7), substituted “subparagraph (B)” for “subparagraph (B)(ii)”.
Subsec. (span)(4). Puspan. L. 100–647, § 1013(a)(8), substituted “subparagraphs (C), (D), and (E)” for “subparagraphs (C) and (D)”.
Subsecs. (d), (e). Puspan. L. 100–647, § 5053(a), added subsec. (d) and redesignated former subsec. (d) as (e).
Amendment by Puspan. L. 115–97 applicable to amounts paid or incurred after Dec. 31, 2017, see section 13402(c) of Puspan. L. 115–97, set out as a note under section 47 of this title.
Amendment by Puspan. L. 101–508 applicable to property placed in service after Dec. 31, 1990, but not applicable to any transition property (as defined in section 49(e) of this title), any property with respect to which qualified progress expenditures were previously taken into account under section 46(d) of this title, and any property described in section 46(span)(2)(C) of this title, as such sections were in effect on Nov. 4, 1990, see section 11813(c) of Puspan. L. 101–508, set out as a note under section 45K of this title.
Amendment by Puspan. L. 101–239 effective, except as otherwise provided, as if included in the provision of the Technical and Miscellaneous Revenue Act of 1988, Puspan. L. 100–647, to which such amendment relates, see section 7817 of Puspan. L. 101–239, set out as a note under section 1 of this title.
Amendment by section 1013(a)(6)–(8) of Puspan. L. 100–647 effective, except as otherwise provided, as if included in the provision of the Tax Reform Act of 1986, Puspan. L. 99–514, to which such amendment relates, see section 1019(a) of Puspan. L. 100–647, set out as a note under section 1 of this title.
Puspan. L. 100–647, title V, § 5053(c), Nov. 10, 1988, 102 Stat. 3678, provided that:
For provisions that nothing in amendment by Puspan. L. 101–508 be construed to affect treatment of certain transactions occurring, property acquired, or items of income, loss, deduction, or credit taken into account prior to Nov. 5, 1990, for purposes of determining liability for tax for periods ending after Nov. 5, 1990, see section 11821(span) of Puspan. L. 101–508, set out as a note under section 45K of this title.