S.C. Code Ann. § 56-3-2910

Each manufacturer must maintain a permanent record of all temporary license plates and registration cards either delivered to it, issued by it, or both. In addition, each manufacturer shall maintain a permanent record of any other information pertaining to the receipt or the issuance of temporary license plates and registration cards that the Department of Motor Vehicles may require. Each record must be kept for a period of at least one year from the date of the latest entry on the record.