S.C. Code Ann. § 56-1-1740

The Department of Motor Vehicles shall examine every applicant for a moped operator's license. The examination shall include a test of the applicant's eyesight and, as pertains to the operation of a moped, a test of his ability to read and understand highway signs regulating, warning, and directing traffic and his knowledge of the traffic laws of this State. The Department may require further physical and mental examination as it considers necessary to determine the applicant's fitness to operate a moped upon the highways, the further examination to be at the applicant's expense. The Department shall make provisions for giving an examination in the county where the applicant resides. The Department shall charge a fee of two dollars for each complete examination or reexamination required in this article. The expiration and renewal of moped operator's licenses must be in accordance with Sections 56-1-210, 56-1-220, and 56-1-225.