Mich. Comp. Laws § 324.501a: Jurisdiction, rights, and responsibilities of Great Lakes states and provinces.

Sec. 501a.

The Great Lakes are a binational public treasure and are held in trust by the Great Lakes states and provinces. Management of the water resources of the Great Lakes and the Great Lakes basin is subject to the jurisdiction, rights, and responsibilities of the Great Lakes states and provinces. Effective management of the water resources of the Great Lakes requires the in-basin exercise of such jurisdiction, rights, and responsibilities in the interest of all the people of the Great Lakes basin.