S.C. Code Ann. § 43-33-230

Any applicant for employment or promotion may personally, or by his representative, file a written complaint of alleged violations of the provisions of this article with the agency concerned within ninety days of the alleged violations. The agency shall make a decision concerning the complaint and shall take such action as may be warranted within thirty days. If the agency and the complainant are unable to reach a satisfactory agreement, the complainant shall be informed of his right to appeal. The appeal shall be through the established grievance procedures in the case of permanent employees or to the State Personnel Division in the case of applicants for employment or those employees not on permanent status.