S.C. Code Ann. § 44-10-60: State control.

Each member state, within its jurisdiction, may enact legislation to suspend the operation of all federal laws, rules, regulations, and orders regarding health care that are inconsistent with the laws, rules, regulations, and orders adopted by the member state pursuant to this compact. Federal and state laws, rules, regulations, and orders regarding health care will remain in effect unless a member state expressly suspends them pursuant to its authority under this compact. For any federal law, rule, regulation, or order that remains in effect in a member state after the effective date, that member state shall be responsible for the associated funding obligations in its State.