S.C. Code § 44-7-2030
The terms of office of the members of the board are for the length of time set forth in the enactment of the health services district but not to exceed six years. Initial terms must be established so that the terms of members of the board must expire on a staggered basis. Terms of board members must expire on a uniform date set forth in the enactment creating the health services district, provided, that each member shall serve until his successor is appointed and qualifies. Any vacancy shall be filled in the same manner as the original appointment for the unexpired portion of the term. A copy of the enactments of the respective counties or municipalities creating a health services district must be filed with the Secretary of State. The Secretary of State must be notified of the method established for staggering the terms of members of the board.
S.C. Code § 44-7-2030