S.C. Code § 58-23-920
The owner or owners of all motor vehicles transporting goods of any kind for hire on the roads of this State are hereby required as a condition precedent for using the highways of this State to carry with some reputable insurance company liability insurance and property damage insurance in such sums as the Public Service Commission may determine. Any person or corporation violating the terms of this provision shall be fined in an amount of not less than one hundred dollars or not more than five hundred dollars for the first offense and an amount of not less than five hundred dollars or not more than two thousand dollars for each subsequent offense or shall suffer imprisonment of a term of not less than thirty days or not more than one year for the first offense and for not less than six months or not more than three years for each subsequent offense. This section is cumulative and does not repeal any other provisions of this Code relating to this subject.
S.C. Code § 58-23-920