Application for Window Tint Medical Exemption. Library File Link. 40-1511. Purpose.In most cases, you will need to fill out a vehicle tint-waiver request form — or some form along those lines — depending on where you reside. Complete the Application Form: You'll need to fill out an application for medical exemptions for window tint. If a medical exemption is requested for someone other than the registered owner of the vehicle, please provide the following information about that person. How to fill out the Application for Window Tint Medical Exemption? If you bring a signed affidavit from your doctor to the DMV, they'll give you an exemption sticker that legalizes tint.