The date of the enactment of this section, referred to in subsecs. (b)(2)(B) and (c)(1)(A)(i), is the date of enactment of Pub. L. 109–58, which was approved Aug. 8, 2005.

The National Appliance Energy Conservation Act of 1987, referred to in subsec. (c)(1)(A)(ii), is Pub. L. 100–12, Mar. 17, 1987, 101 Stat. 103. For complete classification of this Act to the Code, see Short Title of 1987 Amendment note set out under section 6201 of Title 42, The Public Health and Welfare, and Tables.

2007—Subsec. (c)(2), (3). Pub. L. 110–172 substituted “part 3280” for “section 3280” in par. (2) and in introductory provisions of par. (3).

2006—Subsec. (g). Pub. L. 109–432 substituted “2008” for “2007”.

Section applicable to qualified new energy efficient homes acquired after Dec. 31, 2005, in taxable years ending after such date, see section 1332(f) of Pub. L. 109–58, set out as an Effective Date of 2005 Amendments note under section 38 of this title.