Mich. Comp. Laws § 41.288b

Sec. 18b. The township board of a township, by a majority vote at a regular meeting or a special meeting called for that purpose, may authorize the purchase of a public street cleaning vehicle or vehicles and snow removal equipment, and may provide for the maintenance and operation of the vehicles and equipment, payable from the funds of the township. The written approval of the board of county road commissioners shall first be obtained.