S.C. Code § 2-15-20
The nominating committee must be composed of six members, three of whom must be appointed by the President of the South Carolina Senate and three of whom must be appointed by the Speaker of the South Carolina House of Representatives. The nominating committee shall present not more than three nominees for each vacancy. When a vacancy occurs, the director shall immediately notify those charged with appointing the nominating committee. If the General Assembly is in session at the time notice is given, a nominating committee must be appointed within fifteen days of the notification and the election must be held within forty-five days of the notification and no later than sine die adjournment of the General Assembly. If the General Assembly is not in session and a vacancy exists in the non ex officio members of the council, the Speaker and President of the Senate, acting jointly, shall fill the vacancy until an election can be held.
S.C. Code § 2-15-20