Mich. Comp. Laws § 247.653: Tentative system of county primary roads; roads included or deleted.

Sec. 3.

Roads may, from time to time, be included in or deleted from the county primary road system of any county by selection of the county road commission and approval of the state highway commissioner in the same manner and by the same procedure as provided in section 2 hereof for the adoption of any county primary road system in the first instance.