1991—Pub. L. 102–83, § 5(a), renumbered section 537 of this title as this section.

Pub. L. 102–83, § 5(c)(1), substituted “1536” for “536” and “1512(a)” for “512(a)”.

Pub. L. 102–83, § 4(b)(1), (2)(E), substituted “Secretary” for “Administrator”.

1975—Pub. L. 94–169 substituted “surviving spouse” for “widow”.

Pub. L. 94–169, title I, § 106, Dec. 23, 1975, 89 Stat. 1017, provided that the amendment made by that section is effective Jan. 1, 1976.