Section 4221 to 4223: Repealed. Pub. L. 97–258, § 5(b), Sept. 13, 1982, 96 Stat. 1068
Section 4224: Repealed. Pub. L. 96–470, title I, § 101(b), Oct. 19, 1980, 94 Stat. 2237
Section 4225: Repealed. Pub. L. 97–258, § 5(b), Sept. 13, 1982, 96 Stat. 1068