(a) The compact shall become effective as to any state in which the compact becomes effective as the law of that state.
(b) A party state may withdraw from the compact by enacting a statute repealing the compact as the law of the state, but a withdrawal may not take effect until six months after the executive head of the withdrawing state has given notice of the withdrawal to the executive heads of all other party states. Withdrawal does not affect the validity or applicability by the licensing authorities of states remaining party to the compact of any report of conviction occurring before the withdrawal.