S.C. App. Ct. R. 18
In case of a conflict of interest or disqualification of a circuit chair and any co-chair in a given case, the circuit chair shall request assistance from the chair in another circuit and transfer the case to that circuit.
In extraordinary cases where members of the circuit panel are disqualified for any reason, either voluntarily or involuntarily, in a specific dispute, and there do not remain enough members of the circuit panel to comprise the hearing panel, the chair of the Executive Council, or, in the event of the disqualification of the chair of the Executive Council, the President shall appoint the requisite number of members from the Board to the hearing panel.
Should any member of the circuit panel in a judicial circuit fail or refuse to discharge the duties of a member of the Board, the chair of the Executive Council shall appoint a substitute member from members of the Board.
S.C. App. Ct. R. 18