S.C. Code Ann. § 2-1-250
(B) The commission shall consist of fifteen members. Of these members, five must be members of the House of Representatives to be appointed by the Speaker of the House; five must be members of the Senate to be appointed by the President Pro Tempore of the Senate; and five must be nonlegislative members selected by the other legislative members. All members must be qualified electors of this State.
Legislative members shall serve terms concurrent with their terms of office. Nonlegislative members shall serve for terms of four years each. Appointments to fill vacancies, other than by expiration of a term, must be for the unexpired terms. Legislative and nonlegislative members may be reappointed for successive terms. Vacancies must be filled in the same manner as the original appointments.
The commission shall elect a chairman and vice chairman every two years from among its membership, who must be members of the General Assembly.
(C) A majority of the members shall constitute a quorum. The meetings of the commission shall be held at the call of the chairman or whenever the majority of the members request.
No recommendation of the commission shall be adopted if a majority of the Senate members or a majority of the House members appointed to the commission vote against the recommendation.
(D) The commission shall have the following powers and duties: