S.C. Code Ann. § 6-24-90: Executive committee.

The board of directors of a joint agency may create an executive committee, the composition of which must be set forth in the bylaws of the joint agency and reflect a fair representation of the members. The executive committee may exercise powers during intervals between the board's meetings as provided by the board. The terms of office of the members of the executive committee and the methods of filling vacancies must be fixed by the bylaws of the joint agency.