Mich. Comp. Laws § 3.891: Execution of agreement.

Sec. 11.

(1) This agreement is effective upon its execution or adoption by any 1 state and 1 province subject to approval or authorization by the United States congress and the enactment of any state or provincial legislation that may be required for the effectiveness of the arrangement.

(2) Additional jurisdictions may participate in this agreement upon execution or adoption of the agreement.

(3) Any participating jurisdiction may withdraw from this arrangement but the withdrawal does not take effect until 30 days after the governor or premier of the withdrawing participating jurisdiction has given notice in writing of that withdrawal to the governors or premiers of all other participating jurisdictions. The action does not relieve the withdrawing participating jurisdiction from obligations assumed under this agreement before the effective date of withdrawal.

(4) Duly authenticated copies of this agreement in the French and English languages and of such supplementary agreements as may be entered into shall, at the time of their approval, be deposited with each of the participating jurisdictions.