S.C. Code Ann. § 25-3-70: Term of enlistment; oath.

No person shall be enlisted for more than three years, but such enlistment may be extended or renewed for additional periods of up to three years upon the consent of the State Guard and the enlisted person. The oath to be taken upon enlistment in such force shall be substantially in the form prescribed for enlisted persons of the National Guard substituting the words "South Carolina State Guard" where necessary.