S.C. Code Ann. § 25-1-950
The Adjutant General of South Carolina shall appoint a policy board of officers. Said board shall consist of members to represent each arm or branch of service that has an active unit of detachment size or larger in the South Carolina Army National Guard. It shall be the duty of this board to review all matters brought before it and submit findings and recommendations to the Adjutant General for his action. Any active member of the South Carolina Army National Guard may petition the Adjutant General to have this board review any issue or grievance desired to be brought before it. Membership for this board will be for three years except that the original board shall consist of three members appointed for three years, three members for two years, and other members for one year. No member may succeed himself. The senior ranking officer on the board shall be president.