S.C. Code Ann. § 47-13-640

Any animals found infected with brucellosis shall be reported in writing to the State Veterinarian within five days after the test and the infected animal and all other animals exposed to such animal shall be quarantined on the owner's premises. Animals infected with brucellosis shall be branded with the letter "B" on the left jaw, not less than three nor more than four inches high, and be tagged with a suitable ear tag.