United States Code Title 21 — Food and Drugs §§ 171 to 174. Repealed. Pub. L. 91–513, title III, § 1101(a)(2), (4), Oct. 27, 1970, 84 Stat. 1291 §§ 171 to 174. Repealed. Pub. L. 91–513, title III, § 1101(a)(2), (4), Oct. 27, 1970, 84 Stat. 1291