S.C. Code Ann. § 59-1-350: Compensation of members of boards of trustees and boards of education.

Members of the county board of education or board of trustees may serve without pay. Each member of the board may receive a per diem for attendance at board meetings and may be paid mileage to and from such meetings. No member may receive per diem and mileage unless in actual attendance upon a meeting of the board. When any member of a board is directed to travel outside the county or school district on official business of the board, he may be allowed actual expenses incurred as a result.