The Law

Question: Can I have tinted windows on my vehicle?

Answer: The law that covers window applications is  MCL 257.709 . The use of tinting is limited to the rear side windows, the rear window if the vehicle has outside mirrors on both sides, and the top 4 inches of the front side windows. There is a limited exception for medical necessity with a doctor's prescription, which allows for tinting to be applied to the front side windows as well. Michigan does not have a specification for the darkness of the window application, but does prohibit applications with a solar reflectivity greater than 35%.

Question: If I have a signed letter by my doctor indicating a medical necessity for tinted windows can another person drive my vehicle if the windows are tinted?

Answer: MCL 257.709(3)(e) allows for front side window tinting with "...a letter signed by a physician or optometrist, indicating that the special window treatment or application is a medical necessity. However, the special window treatment or application shall not interfere with or obstruct the driver's clear vision of the highway or an intersecting highway." A vehicle equipped with such tinting could not legally be driven by a person other than the person to whom the letter was given.

* All information below has been copied directly from michigan.gov