The DMV gives medical authorizations to individuals seeking protection from the sun, so your local DMV may be a good starting point to obtain a form. Licensed physicians can issue signed affidavit stating the person has a physical condition or disease requiring greater sun protection.Minnesota Statutes 169.71 offers guidance on the laws pertaining to windshield glazing materials or window tinting. We make every effort to ensure that you have a medical reason to qualify for window tint in our prequalification form before meeting with the doctor. How to fill out the Application for Window Tint Medical Exemption?