A prior section 431 of Pub. L. 100–77 was classified to section 11391 of this title prior to repeal by Pub. L. 111–22, div. B, title V, § 1501, May 20, 2009, 123 Stat. 1701.

Section effective on the earlier of 18 months after May 20, 2009, or 3 months after publication of certain final regulations by Secretary of Housing and Urban Development, see section 1503 of Pub. L. 111–22, set out as an Effective Date of 2009 Amendment note under section 11302 of this title.