S.C. Code Ann. § 8-3-80

Before any county official, other than a magistrate, constable or rural county policeman, who is required by law to give bond shall enter into the discharge of the duties of his office he shall secure bond in some reliable surety company authorized to do business in this State, except that if any official be refused bond by any of such surety companies, after proper application, a personal bond shall be accepted when approved as provided by law.