S.C. Code Ann. § 56-3-1540

Special license plates issued pursuant to this article may be transferred to another vehicle of the same weight class owned by the same person upon application being made therefor and approved by the Department of Motor Vehicles. It shall be unlawful for any person to whom such special license plates have been issued to knowingly permit such plates to be displayed on any vehicle except the one authorized by the Department. If the amateur radio license of a person holding a special license plate issued pursuant to this article shall be cancelled or rescinded by the Federal Communications Commission, such person shall immediately return the special license plate to the Department.