S.C. Code § 7-17-10
The commissioners of election for Governor and Lieutenant Governor, state officers, circuit solicitors, members of the General Assembly, and county officers or any of these officers shall meet in some convenient place at the county seat on the Friday next following the election, before one o'clock in the afternoon of that day, and shall proceed to organize as the county board of canvassers. They may appoint some competent person as secretary. The chairman then shall proceed to administer the constitutional oath to each member of the board, as canvassers, and shall administer the constitutional oath to the secretary, and the secretary shall administer to the chairman the same oath that he has administered to the other members of the board. The commissioners of election for members of Congress and presidential electors or any of these officers likewise shall meet at the same time at the county seat and in the same manner shall proceed to organize as the county board of canvassers for the election of the federal officers.
S.C. Code § 7-17-10