S.C. Code Ann. § 40-33-1365

This compact must be liberally construed so as to effectuate its purposes. The provisions of this compact are severable, and if any phrase, clause, sentence, or provision of this compact is declared to be contrary to the constitution of any party state or of the United States, or if the applicability thereof to any government, agency, person, or circumstance is held invalid, the validity of the remainder of this compact and the applicability of it to any government, agency, person, or circumstance is not affected. If this compact is held to be contrary to the constitution of any party state, this compact remains in full force and effect as to the remaining party states and in full force and effect as to the party state affected as to all severable matters.