Traffic control: speed restrictions; speed limit on a highway closed to nonemergency motor vehicles; provide for. Amends 1949 PA 300 (MCL 257.1 - 257.923) by adding sec. 628b.

This bill establishes a new speed limit of 15 miles per hour for vehicles operating on highways or streets closed to nonemergency motor vehicles. It applies to any individual driving on these restricted roads, regardless of whether they are exempt from the general closure rules. Violating this speed restriction is classified as a civil infraction. The law amends the Michigan Vehicle Code to create this specific exception for closed roads.