Any horses entering an Equine Sales Facility in South Carolina must be accompanied by an official certificate showing that it has reacted negatively to an approved test for equine infectious anemia within the last six (6) months.
It shall be the responsibility of the person in charge of the facility at the time of the sale to require the "official certificate" proof that the horse has met the testing requirements before it is allowed to enter the facility.
S.C. Code Regs. § 27-4003