7 U.S.C. § 2141
Verified against govinfo.gov as of June 20, 2026View official text on govinfo.gov ↗
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.