W. Va. Code § 30-32A-14: Binding effect of compact and other laws.

(a) Nothing in this article prevents the enforcement of any other law of a member state that is not inconsistent with the compact.

(b) All laws in a member state in conflict with the compact are superseded to the extent of the conflict.

(c) All lawful actions of the commission, including all rules and bylaws promulgated by the commission, are binding upon the member states.

(d) All agreements between the commission and the member states are binding in accordance with their terms.

(e) In the event any provision of the compact exceeds the constitutional limits imposed on the legislature of any member state, the provision shall be ineffective to the extent of the conflict with the constitutional provision in question in that member state.