S.C. Code Ann. § 7-9-40
Members of a political party must belong to the club in the voting precinct set forth in their respective registration records. The poll list of the primary of the preceding primary election is the prima facie list of the members of each club for the purpose of club organization and the election of delegates to the county convention. There may not be more than one voting place for each club. Federal, state, and county officers temporarily residing at or near the capital or county seat may retain their membership and voting rights in their former home clubs. No person may take part in any club meeting, vote in any primary, or be elected a delegate to any county convention except in the club of the voting precinct set forth in his or her registration record.