S.C. Code Ann. § 8-13-700
(B) No public official, public member, or public employee may make, participate in making, or in any way attempt to use his office, membership, or employment to influence a governmental decision in which he, a member of his immediate family, an individual with whom he is associated, or a business with which he is associated has an economic interest. A public official, public member, or public employee who, in the discharge of his official responsibilities, is required to take an action or make a decision which affects an economic interest of himself, a member of his immediate family, an individual with whom he is associated, or a business with which he is associated shall: