S.C. Code Ann. § 7-15-10
The State Election Commission is responsible for carrying out the provisions of Article 3 and Article 5 of this chapter. The commission may promulgate regulations, and must have drafted, printed, and distributed all forms that are required to make it possible for persons listed in Section 7-15-320 to vote by absentee ballot in primary, general, and special elections. Regulations promulgated pursuant to this section must be promulgated in accordance with the Administrative Procedures Act.