S.C. Code Ann. § 56-1-2025
(A) The Governor may authorize the Department of Motor Vehicles to waive temporarily any requirements under the provisions of this title relating to any permits, authorizations, or licenses required to operate a motor vehicle in this State. However, a temporary waiver must be for the sole purpose of facilitating the response of motor carriers providing humanitarian relief during a time of emergency officially declared by the President of the United States, the Governor of this State, or the chief executive of another state or jurisdiction, and must satisfy the following conditions: