Medical Exemption for Window Tint: Who Qualifies and How to Apply

States that publish a list lean on the same group of light-sensitive conditions. Florida's application, form HSMV 83390, names lupus, dermatomyositis, albinism, total or facial vitiligo and xeroderma pigmentosum, plus an open category for other autoimmune diseases or medical conditions that require limited exposure to light. For lupus and dermatomyositis, the physician box specifically asks for a positive ANA titer. New York takes a similar approach: its exemption is only granted for conditions on a list kept by the state health commissioner.

Other states write the rule more broadly. Texas and Washington accept a licensed provider's statement that the person must be shielded from the sun for medical reasons, without naming specific diagnoses. That flexibility cuts both ways, because an officer or court can still question whether the claim is genuine.

The test most states apply is whether legal film would do the job. Georgia states it plainly: conditions that can be handled with protective eyewear, or with legal tint that blocks 99.9 percent of UV light, are not eligible, and neither are conditions that may only occur because of family history. Since nearly every modern film at any shade already blocks 99 percent or more of UV, a condition that reacts only to UV is a weak case. A condition that reacts to visible light, such as some forms of photosensitivity and albinism-related light sensitivity, is a much stronger one.

The order of operations is the same almost everywhere: confirm your state's rule, get the medical sign-off, file it if your state requires filing, then have film installed at the darkness the paperwork allows. Doing the install first and the paperwork second is how people end up with a ticket during the gap.

The table compares the states whose rules we checked against the statute or the official form. Rules change, so confirm the current version before you book an install.

Coverage differs on which glass you can darken. Florida's certificate allows sunscreening on the windshield, the side windows and the windows behind the driver beyond the normal limits. Washington allows darker film on all windows and the top six inches of the windshield. Texas uses the exemption mainly for the two front side windows, since rear side glass there is already unregulated. In most other states, assume the exemption applies to side windows and not to the full windshield unless the statute says so.

The exemption is also narrower than people expect in a few practical ways. In Texas it is written as a defense to prosecution, so you can still be pulled over and asked to show the statement. Minnesota lets a driver rely on a statement issued to a parent, child, grandparent, grandchild, sibling, spouse or the person they are a care attendant for, but only for the one or two vehicles named on it. Florida's certificate dies with the sale of the car, so a new vehicle means a new application, though not a new diagnosis.

Travel is the other gap. An exemption is a state document, so treat it as valid only in the state that issued it unless the state you are driving through says otherwise. If you drive regularly across a state line, check that state's law before choosing a very dark shade.

Darker is not automatically better. The person with the condition usually needs visible light and heat reduction during daytime driving, but the driver still needs to see at night. A 20 to 35 percent film on the front sides is a common compromise, and the percentage guide at Window Tint Percentage Guide: What 5%, 20%, 35% and 70% Mean shows what each shade looks like from inside and out.

Film type matters as much as shade. Ceramic film rejects far more infrared heat than dyed or carbon film at the same darkness, which means a lighter ceramic shade can feel as comfortable as a darker carbon one. That can let you stay closer to the normal legal limit while still getting relief. The heat rejection explainer at Ceramic Tint Heat Rejection Explained: TSER, IR and the Numbers That Matter covers how to compare spec sheets.

The exemption does not change the price. In 2026, carbon film runs $250 to $400 for a standard sedan and ceramic runs $450 to $700, with SUVs about 1.2 times higher and large SUVs or trucks about 1.4 times higher. Bring the paperwork to the appointment, since many shops will not install film darker than the legal limit without seeing it. The instant quote on Coateau shows local studios' film options, public Google ratings and manufacturer certifications so you can compare before booking.