Michigan Compiled Laws, Chapter 252. Highways § 252.156

Sec. 6. The board shall convene at the time and place set by the governor and shall consider the submitted maps and information and shall hear representatives of the department and the affected municipalities and shall hear such other persons as are parties in interest. The department and the affected municipalities, may, and when so requested by the board shall, submit additional maps and information relative to any proposed location for consideration by the board. Within 60 days of the date it convenes, the board shall approve 1 of the locations. The approval is final and binding upon the department and the affected municipalities. The commission shall send notice of the approval by registered mail to the clerks of the affected municipalities.