S.C. Code Ann. § 47-13-1370: Proof of tests required for public assembly of horses.

(A) All horses must be accompanied by written proof of an approved negative test for equine infectious anemia when entering any public assembly of horses. These public assemblies include, but are not limited to, shows, fairs, organized trail rides, rodeos and other exhibitions, as well as organized sales. Animals moving directly to a slaughter plant or assembly point for slaughter which has been specifically approved by the state veterinarian are not subject to the negative test requirement. The owner, operator, or person in charge of these shows, fairs, organized trail rides, rodeos and other exhibitions, organized sales, and other public places where horses are assembled shall require that each animal be accompanied by an official certificate showing that it has been negative to an approved test for equine infectious anemia within the last twelve months.

(B) Horses which are permanently maintained at a public stable or other public facility must be tested for equine infectious anemia each twelve months.

(C) The Coggins Test or other test for equine infectious anemia, whether administered within or without this State, is required to be administered only once each twelve months to a horse or an animal regardless of the number of times the animal is shown, sold, exhibited, or housed in a public stable or place in this State during that period. The state veterinarian and the Livestock-Poultry Health Service of Clemson University may require proof of annual test administrations as they consider necessary.