S.C. Code Ann. § 50-13-235
It is unlawful to take or possess striped bass, rockfish, less than twenty-one inches in the following rivers, reservoirs, and their tributaries: Lakes Marion and Moultrie, the Congaree River, the Wateree River northward to the Lake Wateree Dam, the Lower Saluda River northward to the Lake Murray Dam, the Broad River from its confluence with the Lower Saluda River northward to the Columbia Dam, the Santee River southward to the Intercoastal Waterway, the Tailrace Canal from the Pinopolis Dam to the Cooper River, the Cooper River, including the east and west branches of the Cooper River downstream to the U.S. Highway 17 bridge, and in the Wando River.