S.C. Code Ann. § 56-10-280
(A) Contracts or policies of insurance issued to meet the financial responsibility requirements prescribed in this chapter must be issued for not less than six months. A contract or policy of insurance remains in effect at least sixty days notwithstanding a power of attorney which may purport to give the attorney-in-fact the right to effect cancellation on behalf of the insured. However, a contract or policy may be canceled within the first sixty days only under one or more of the following circumstances: