Michigan Compiled Laws, Chapter 257. Motor Vehicles § 257.1362

(a) “Aftermarket crash part” means a replacement part for a nonmechanical sheet metal part or plastic part that constitutes part of the exterior of a motor vehicle, including, but not limited to, an inner or outer panel.

(b) “Installer” means an individual who replaces or repairs parts of a motor vehicle.

(c) “Insurer” means an insurance company authorized to transact property, fire, or casualty insurance in this state and an agent of the insurer and includes an insurance association, pool, or facility created under the insurance code of 1956, Act No. 218 of the Public Acts of 1956, being sections 500.100 to 500.8302 of the Michigan Compiled Laws.

(d) “Motor vehicle” means a self-propelled device by which a person or property may be transported upon a public highway. Motor vehicle does not include a tractor, motorcycle, moped, trailer, semitrailer, bus, power shovel, road machinery, agricultural machinery, or other machinery or vehicle not designed primarily for highway transportation, but which may incidentally transport persons or property on a public highway. Motor vehicle also does not include a device that moves upon or is guided by a track.

(e) “Nonoriginal equipment manufacturer aftermarket crash part” or “non-OEM aftermarket crash part” means an aftermarket crash part not made by or for the manufacturer of a motor vehicle.

(f) “Repair facility” means any motor vehicle dealer, garage, body repair shop, or other commercial entity that undertakes the repair or replacement of parts that generally constitute the exterior of a motor vehicle.