S.C. Code Ann. § 25-1-960

In the event the structure or organization of any National Guard unit or organization is changed or reorganized by the Department of the Army, the Adjutant General shall effect such change or reorganization that is to the best interest of the National Guard. Should such change or organization subsequently make inapplicable any sections of the military code, the Adjutant General shall promulgate such appropriate rules and regulations that shall have full force and effect as the military code of State.