Rule 32.3.416 - IDENTIFICATION OF TESTED, REACTOR, AND OTHER ANIMALS(1) Reactor animals must be tagged with a serially numbered U.S. Department of Agriculture (USDA) tag. If in the judgment of the state veterinarian, there is concern about compliance with the provisions of quarantine or if the reactor animal is found outside of the Designated Surveillance Area, the animal may be permanently branded on the left jaw with the letter "B" not less than two inches high. Tagging and branding of reactors must be accomplished within 15 days after the date of test on blood collected from the animal. The time allowed to tag and brand reactor animals, as specified herein, may be enlarged or extended by the state veterinarian for good cause shown.(2) Animals which have been subjected to an official test for brucellosis must be identified with serially numbered USDA identification ear tags.(3) The USDA backtag is adopted by the Department of Livestock as an official animal identification tag for market cattle identification (MCI).(4) The unauthorized removal of any identification provided for under this rule is prohibited.Eff. 12/31/72; EMERG, AMD, Eff. 11/4/75; AMD, 1980 MAR p. 1082, Eff. 3/28/80; AMD, 2024 MAR p. 2231, Eff. 9/21/2024AUTH: 81-2-102, 81-2-103, 81-2-104, MCA; IMP: 81-2-102, 81-2-103, 81-2-104, MCA