S.C. Code § 59-25-810
Within thirty days after the receipt of any such notice of such decision of the county board, any party thereto shall have the right to appeal to the State Board of Education by filing a notice of appeal, stating the grounds thereof, with the county board of education. Upon such appeal being filed, the county board, within thirty days thereafter, shall file a full and complete certified transcript of the proceedings had before it with the State Board of Education. Upon receipt of such appeal, the State Board of Education shall fix a time and place for the hearing thereof and give notice, by registered mail, to the parties involved. Such appeal shall be heard upon the transcript of the proceedings from the county board and such other investigation and additional testimony as the State Board may elect to take, all of which, if taken, shall be reported and made a part of the record. The State Board of Education shall review all questions of law and fact and, in determining the matter, exercise its discretion as an original duty imposed upon it. All powers and remedies herein conferred on county boards as to subpoenaing witnesses, enforcing attendance, taking and production of evidence and other procedural matters are hereby conferred upon the State Board.
S.C. Code § 59-25-810