S.C. Code Ann. § 40-6-70

If the Director of the Department of Labor, Licensing and Regulation or the commission has reason to believe that an individual or firm has become unfit to engage in the conducting of auctions or has violated a provision of this chapter or a regulation promulgated under this chapter or if an individual files a written complaint with the commission or the director of the Department of Labor, Licensing and Regulation, charging an individual or firm with the violation of a provision of this chapter or a regulation promulgated under this chapter, the commission must approve the initiation of an investigation.