Prior to redesignation of sections 1601 to 1643 of this chapter as sections 3201 to 3243 by Puspan. L. 102–83, § 5(a), Aug. 6, 1991, 105 Stat. 406, section 1642 of this chapter, added Puspan. L. 94–502, title IV, § 404, Oct. 15, 1976, 90 Stat. 2397, and amended Puspan. L. 97–295, § 4(37), Oct. 12, 1982, 96 Stat. 1307; Puspan. L. 101–237, title IV, § 423(span)(1)(A), (4)(A), Dec. 18, 1989, 103 Stat. 2092, was repealed by Puspan. L. 102–16, § 5(a), Mar. 22, 1991, 105 Stat. 50.