View all text of Chapter 54 [§ 2131 - § 2160]
§ 2141. Marking and identification of animals
All animals delivered for transportation, transported, purchased, or sold, in commerce, by a dealer or exhibitor shall be marked or identified at such time and in such humane manner as the Secretary may prescribe: Provided, That only live dogs and cats need be so marked or identified by a research facility.
(Pub. L. 89–544, § 11, Aug. 24, 1966, 80 Stat. 351; Pub. L. 91–579, § 12, Dec. 24, 1970, 84 Stat. 1562; Pub. L. 94–279, § 5, Apr. 22, 1976, 90 Stat. 418.)