S.C. Code Ann. § 11-35-3820
Except as provided in Section 11-35-1580 and Section 11-35-3830 and the regulations pursuant thereto, the sale of all state-owned supplies, property, or personal property not in actual public use shall be conducted and directed by the Office of General Services. Such sales shall be held at such places and in such manner as in the judgment of the Office of General Services shall be most advantageous to the State. Unless otherwise determined, sales shall be by either public auction or competitive sealed bid to the highest bidder. Each governmental body shall inventory and report to the Office of General Services all surplus personal property not in actual public use held by that agency for sale. The Office of General Services shall deposit the proceeds from such sales, less expense of the sales, in the state general fund or as otherwise directed by regulation. This policy and procedure shall apply to all governmental bodies unless exempt by law.