You get a medical tint permit for your car by applying through your state’s Department of Motor Vehicles or Department of Public Safety with a physician’s certification, the state’s exemption application, your vehicle information, and any required fee. Around 40 states offer some form of medical window tint exemption. Roughly 10 do not. The exact form, fee, and processing time depend on where your vehicle is registered, so the first real step is confirming your state participates at all.
Confirm Your State Offers an Exemption
Colorado, Hawaii, Iowa, Kansas, Kentucky, Nebraska, North Dakota, Ohio, South Dakota, and Utah do not currently permit darker tint for medical reasons. If you live in one of these states, no doctor’s letter will get you an exemption, and installing tint beyond the legal limit leaves you exposed to a citation every time you drive.
If your state does grant exemptions, find the right agency before anything else. Most states run the program through the DMV or Department of Public Safety. A few route it through a medical review board instead. Search your state’s DMV or highway patrol site for “window tint medical exemption” to pull up the specific application and instructions that apply to you.
Who Qualifies
Medical tint exemptions exist for people whose health is harmed by sunlight or ultraviolet exposure. The conditions that appear most often on state exemption forms include lupus, xeroderma pigmentosum, albinism, porphyria, dermatomyositis, and severe photophobia. Some states list qualifying conditions by name. Others take a broader approach and accept any condition a licensed physician certifies as requiring sun protection beyond what untinted glass provides.
Watch for one common limitation. Several states will deny the exemption if your condition can be adequately managed with sunglasses or other protective eyewear. General light sensitivity or mild discomfort in bright sun often falls short. The qualifying conditions tend to be ones where tinted windows protect something sunglasses cannot, such as skin across the whole body rather than just the eyes.
The exemption usually attaches to the person with the condition rather than only the driver, so any vehicle that person regularly rides in can be covered. Some states cap the number of vehicles per exemption, so check your state’s rule before you tint more than one car.
Documents to Gather
Call your doctor first. The physician’s certification is the one piece you cannot create yourself, and some states require it to be dated within a specific window before submission. Getting the medical form completed first also lets you confirm the diagnosis qualifies under your state’s rules before you spend money on tint installation.
- A signed statement from a licensed physician, optometrist, ophthalmologist, or dermatologist confirming your condition requires protection from sunlight. Many states provide a specific form the doctor must complete, with the diagnosis and an explanation of why window tint is medically necessary. A general note on office letterhead usually will not be accepted if your state has its own form.
- A recognized diagnostic code if your state requires one, such as a code from the World Health Organization’s International Classification of Diseases. Your doctor will know the correct code.
- Vehicle information: the Vehicle Identification Number, make, model, year, and license plate for each vehicle you want covered.
- The state’s official exemption application, available through the DMV or public safety department. Fill in every field. Incomplete applications are the most common reason for delay.
- The application fee, where one applies. Fees tend to be nominal, typically under $10 to $15, and many states charge nothing at all.
Submitting the Application
Most states accept applications by mail, and a growing number offer online submission through the DMV or highway patrol portal. In-person filing at a DMV office is available in some states but rarely required. The method matters less than a complete package, because a missing signature or blank field will bounce the application back and reset your wait.
For mail submissions, send the completed application, the physician’s certification (original or copy, per your state’s instructions), and the fee by check or money order. Keep copies of everything. For online submissions, scan and upload the physician’s form and pay the fee electronically.
Expect two to six weeks for processing in most states. Online submissions sometimes move faster. Do not install the darker tint before you have the approval in hand. Driving with illegally dark tint while the application is pending will not protect you from a citation, because the exemption is not effective until the state grants it.
After You Are Approved
Approval comes as a certificate, a decal, or both. Keep the certificate in the vehicle at all times. If an officer pulls you over, they may ask to see it, and not having it on hand can result in a tint citation even though you hold the exemption. Some states issue a windshield decal that signals to law enforcement that the car is covered, which can prevent the stop in the first place.
If your state requires periodic safety or emissions inspections, bring a copy of the approval paperwork to the inspection station. Inspection technicians will not always know about your exemption unless you show them documentation, and tinted windows below the legal VLT can otherwise trigger a failure.
Renewal
Medical tint exemptions are not always permanent. Some states require annual renewal. Many set two- to four-year terms. A few grant exemptions that last as long as the condition persists or until the vehicle is sold. Florida issues certificates with no expiration date. Check your approval letter for renewal instructions and mark the expiration on your calendar. Letting the exemption lapse while keeping the dark tint puts you back in violation.
What It Costs to Skip the Permit
Driving with illegally dark tint and no exemption is one of the easiest violations for police to spot. Many officers carry portable tint meters that measure VLT on the spot. If your windows fall below the legal threshold, you are getting a ticket.
Fines for illegal tint typically run from around $50 to several hundred dollars, depending on the state and whether it is a first or repeat offense. The initial citation is often treated as a correctable violation, sometimes called a “fix-it ticket.” You remove or replace the illegal tint, take the vehicle to a police station or inspection site for sign-off, and the citation is dismissed or reduced. Ignore the ticket or refuse to remove the tint and the fine stands, with repeat violations escalating into higher penalties and inspection failures.
The practical trap is the money. You pay for the tint installation, pay the fine, and then pay again to have the tint removed. If you qualify for a medical exemption, getting the permit first spares you the whole cycle.