Section was formerly classified to section 3712g of Title 42, The Public Health and Welfare, prior to editorial reclassification and renumbering as this section.

2006—Subsec. (b). Pub. L. 109–271 substituted “be deobligated” for “revert to the Treasury”.

Pub. L. 109–162, title XI, § 1161(b), Jan. 5, 2006, 119 Stat. 3118, as amended by Pub. L. 109–271, § 8(n)(4)(B), Aug. 12, 2006, 120 Stat. 768, provided that: “This section [enacting this section] and the amendment made by this section take effect on October 1, 2006.”