§ 641. Repealed.]
Section, Pub. L. 91–518, title VIII, § 801, Oct. 30, 1970, 84 Stat. 1339; Pub. L. 93–146, § 14, Nov. 3, 1973, 87 Stat. 554; Pub. L. 93–496, § 10, Oct. 28, 1974, 88 Stat. 1531; Pub. L. 94–555, title I, § 108, Oct. 19, 1976, 90 Stat. 2616, provided for promulgation and revision of regulations for adequacy of service and for maintenance of civil actions for enforcement of provisions.