S.C. Code Ann. § 23-15-135

No public official, public member, or public employee who is a law enforcement officer or official, may derive any personal income from providing food or any other product or service to a prisoner after July 1, 1992, unless the food, product, or service is provided to a procuring entity by the law enforcement officer or official pursuant to requirements of the South Carolina Consolidated Procurement Code which the procuring entity must follow in making the procurement unless it has its own procurement code in which case its own procurement code provisions must be followed.