1981—Subsecs. (a)(2), (b)(2). Pub. L. 97–35 inserted “voluntary” before “performance standards”.
Amendment by Pub. L. 97–35 effective
For short title of this subchapter as the “Energy Conservation Standards for New Buildings Act of 1976”, see section 301 of Pub. L. 94–385, set out as a note under section 6801 of this title.