S.C. Code Ann. § 57-1-310
The congressional districts of this State are constituted and created Department of Transportation districts of the State, designated by numbers corresponding to the numbers of the respective congressional districts. The Commission of the Department of Transportation shall be composed of one member from each transportation district elected by the delegations of the congressional district and one member appointed by the Governor, upon the advice and consent of the Senate, from the State at large. Such elections or appointment, as the case may be, shall take into account race and gender so as to represent, to the greatest extent possible, all segments of the population of the State; however, consideration of these factors in making an appointment or in an election in no way creates a cause of action or basis for an employee grievance for a person appointed or elected or for a person who fails to be appointed or elected.