The date of the enactment of this subparagraph, referred to in subsec. (b)(3)(B), is the date of enactment of Pub. L. 116–25, which was approved July 1, 2019.

2019—Subsec. (b)(3). Pub. L. 116–25 amended par. (3) generally. Prior to amendment, text of par. (3) read as follows: “The Secretary shall publish guidance as appropriate to define and implement any waiver of the signature requirements or any method adopted under paragraph (1).”

1998—Pub. L. 105–206 designated existing provisions as subsec. (a), inserted subsec. heading, substituted “Except as otherwise provided by subsection (b) and” for “Except as otherwise provided by”, and added subsec. (b).

1976—Pub. L. 94–455 struck out “or his delegate” after “Secretary”.

Pub. L. 105–206, title II, § 2003(f), July 22, 1998, 112 Stat. 725, provided that: “The amendments made by this section [amending this section and section 7502 of this title] shall take effect on the date of the enactment of this Act [July 22, 1998].”