S.C. Code Ann. § 37-6-407

An interested person may petition the administrator requesting the promulgation, amendment, or repeal of a rule. The administrator shall prescribe by rule the form for petitions and the procedure for their submission, consideration, and disposition. Within thirty days after submission of a petition, the administrator either shall deny the petition in writing, stating his reasons for the denials, or shall initiate rule-making proceedings in accordance with the provisions on procedure for adoption of rules (Section 37-6-404).