S.C. Code Ann. § 7-5-10
Between the first day of January and the fifteenth day of March in every even-numbered year the Governor shall appoint, by and with the advice and consent of the Senate, not less than three nor more than five competent and discreet persons in each county, who are qualified electors of that county and who must be known as the board of registration of __________ County. The Governor shall notify the State Election Commission in writing of the appointments. The members appointed are subject to removal by the Governor for incapacity, misconduct, or neglect of duty.
Members and such staff as designated by the board must complete, within eighteen months after their appointment or reappointment, a training and certification program conducted by the State Election Commission. Following initial certification, each board member and staff person designated by the board or commission must take at least one training course each year.