S.C. Code Ann. § 9-13-40: Rules and regulations; decisions on applications.

The board of trustees of the firemen's pension fund shall, by four-fifths vote of its members, make all necessary regulations for its government in the discharge of its duties and may, if the pension fund be sufficient, provide by such regulation for benefits in addition to those provided for by this chapter and the conditions on which such benefits may be paid. The board of trustees shall hear and decide all applications for pensions under this chapter. Its decisions on such applications shall be final and conclusive and not subject to review or reversal except by the board.