Michigan License Plate Covers, Frames and the Legibility Test

The word the statute turns on is "partially". MCL 257.225(2) does not ask whether an officer could eventually read the plate. It asks whether foreign material obscures or partially obscures the registration information, and whether the plate is in a clearly legible condition. A cover that dims the plate at an angle, a mesh or lens marketed as defeating cameras, road film left caked over the numbers, and a spray coating all fall on the wrong side of that phrase even when the plate remains readable from directly behind. The subsection also requires that the plate be securely fastened in a horizontal position so it cannot swing, that it sit at a height of not less than 12 inches from the ground measured from the bottom of the plate, and that it be in a place and position that is clearly visible, so a plate laid flat on a dash or angled down under a bumper is a separate breach of the same subsection.

Frames are handled twice over. Subsections (4) and (5) target a name plate, insignia, or advertising device attached to a registration plate in a manner that obscures or partially obscures the registration information, and they reach two different people: subsection (4) prohibits attaching it, and subsection (5) prohibits operating the vehicle with it attached. That split matters when a dealership fits the frame and the buyer drives away, because the driver commits the subsection (5) offence regardless of who installed the surround. The Michigan State Police apply the same standard to novelty frames, advising that a plate frame containing neon lights may be fitted but must be covered and unlit while on the roadway or within the public right of way, and that "the frame cannot obstruct any of the registration information on the plate or tabs." The reference to tabs is the practical trap: Michigan registration tabs sit in the upper corner of the plate, exactly where a thick frame border lands.

One carve-out was added by 2014 PA 26 and it is unusually generous. The final sentence of MCL 257.225(2) provides that attaching a tow ball, bicycle rack, removable hitch, or any other device designed to carry an object on the rear of a vehicle, including the object being carried, does not violate the subsection. A bike rack loaded with two bicycles across a Michigan plate is therefore expressly lawful, which is not the case in every state, and the exemption covers the load and not merely the empty carrier.

Michigan issues a single plate for most vehicles, which narrows where the question can arise. MCL 257.225(1) requires the registration plate to be attached to the rear of the vehicle, except that a plate issued for a truck tractor or road tractor goes on the front. There is no front plate to cover on an ordinary car. Subsection (6) sets out the one class of vehicle allowed to carry no mounted plate at all: a historic military vehicle, defined as a vehicle including a trailer, regardless of size, weight or year of manufacture, manufactured for use in any country's military forces and maintained to represent its military design and markings accurately. If it was not originally built with lighting and mounting provisions for a plate, the plate need not be attached, but it must be present in the vehicle and produced on demand of a police officer. Subsection (3) rounds this out by requiring marked contrast between the plate colour and its numerals or letters, and a differently coloured expiration tab designated by the secretary of state, so a colour-matched overlay defeats a design feature the statute deliberately builds in.

225(7) is unambiguous: a person who violates this section is responsible for a civil infraction. 6a defines the term, so a plate cover stop does not create a misdemeanor record the way a section 660 lane splitting stop does. 00 justice system assessment under subsection (12), which the clerk transmits to the state justice system fund. 907(7), which is why the figure on a Kalamazoo ticket and a Macomb County ticket can differ for the same conduct. 683(2). 907(13) does require a waiver where the citation was for failing to produce a registration certificate under section 223 and a valid certificate is later produced.