Mich. Admin. Code R. 28.1138
The traffic engineer shall not designate or sign any curb loading zone upon special request of any person unless the person makes application for a permit for the zone and for 2 signs to indicate the ends of each zone. When approved by the traffic engineer, the clerk, upon granting a permit and issuing the signs, shall collect from the applicant and deposit with the treasurer a service fee for 1 year or a fraction thereof in an amount specified by resolution of the ordinance making body. The governmental unit may, by regulation, impose conditions upon the use of the signs and provide for reimbursement for the value of the signs if they are lost or damaged and for return of the signs if they are misused or upon expiration of the permit. The permit shall expire at the end of 1 year.
Mich. Admin. Code R. 28.1138