S.C. Code Ann. § 50-5-390: Denial of or limitations on nonresident licenses.

The department may deny issuance of any license or permit for commercial fishing equipment or activities to residents of any coastal state which denies the same privilege to South Carolina residents. The department may limit the type of fishing equipment used, seasons, and areas where nonresidents may fish in accordance with comparable limitations placed upon South Carolina fishermen by the nonresident's state.