California Window Tint Medical Exemption: CVC 26708.2 Guide
The medical exemption allows 35% VLT on front side windows — but it has hard limits most drivers miss. No windshield coverage. Vehicle-specific only. Certificate required at every stop.
Last verified: October 2026
California’s window tint medical exemption allows drivers with qualifying conditions to install tint on front side windows that would otherwise be illegal under CVC 26708. The exemption is governed by California Vehicle Code 26708.2, significantly expanded through AB 1303 enacted in 2017. For the full rules on what all windows require without a medical exemption, see the California window tint laws guide.
The exemption does not eliminate all restrictions. It applies only to front side windows. Windshield tinting remains prohibited regardless of medical documentation.
Key Takeaways
- CVC 26708.2 allows darker tint on front side windows for drivers with qualifying medical conditions.
- Any licensed physician or surgeon can sign the certificate. Optometrists can sign for vision-related conditions.
- The statute says “clear, colorless, and transparent material” without specifying a VLT floor. Enforcement practice commonly treats 35% VLT as the practical limit.
- The certificate must be in the vehicle at all times and must be presented at any traffic stop where the tint is questioned.
- Windshield tinting is not covered by the medical exemption under any circumstances.
- The exemption applies to the vehicle named in the certificate, not the driver across any vehicle they operate.
- Rear windows are not relevant to the exemption because California already allows any darkness on rear windows without any medical documentation.
What CVC 26708.2 Actually Says
Understanding the statute’s exact language matters because it creates a real ambiguity that most resources avoid addressing.
CVC 26708.2 governs sun screening devices and materials on front side windows. Under the provisions codified through AB 1303, a person may install material on front driver and passenger side windows if:
- The material is clear, colorless, and transparent
- The material screens ultraviolet rays at 99% or higher
- The driver or a passenger in the front seat has in their possession a document signed by a licensed physician and surgeon certifying that the person should not be exposed to ultraviolet rays due to a medical condition
The critical statutory language: “clear, colorless, and transparent.”
The statute does not specify a VLT floor such as 35% or 50%. It requires the material to be clear, colorless, and transparent. Most installers, law enforcement agencies, and driver guides cite 35% VLT as the practical limit — drawn from the companion provision governing removable sun screening devices, which explicitly requires 35% minimum luminous transmittance for those devices.
Practical guidance: Install film at 35% VLT minimum on front side windows under a medical exemption. Going darker creates legal exposure even with valid documentation, because 20% or 5% film is difficult to characterize as “clear and transparent” regardless of what the physician’s certificate says.
Who Qualifies for the California Window Tint Medical Exemption
California’s medical exemption is available for conditions that create documented sensitivity to UV light or sunlight exposure. The statute does not enumerate specific conditions — the qualifying standard is that a licensed physician certifies the person should not be exposed to UV rays due to a medical condition.
Skin Conditions That Commonly Qualify
| Condition | Why It Qualifies |
|---|---|
| Lupus (Systemic Lupus Erythematosus) | Photosensitivity is a primary documented symptom. UV exposure triggers flares. |
| Melanoma history | Post-treatment UV sensitivity and medically documented sun avoidance |
| Xeroderma pigmentosum | Rare genetic disorder with near-total UV intolerance |
| Albinism | Complete absence of melanin creates extreme UV and light sensitivity |
| Polymorphous light eruption | Recurring skin reaction to UV exposure |
| Solar urticaria | Allergic reaction to sunlight causing hives and anaphylaxis risk |
| Chemotherapy-related photosensitivity | Documented sensitivity during and after certain cancer treatments |
Eye Conditions That Commonly Qualify
| Condition | Why It Qualifies |
|---|---|
| Photophobia | Severe light sensitivity from migraines, post-concussion syndrome, or neurological conditions |
| Iritis or uveitis | Inflammation of the eye causing significant light sensitivity |
| Keratoconus | Progressive corneal thinning with associated light sensitivity |
| Post-surgical eye sensitivity | Light sensitivity following cataract surgery, LASIK, or other procedures |
Who Is Not Automatically Eligible
The exemption is not available for mild sun discomfort, preference for privacy, conditions not documented in a physician’s records, or general sensitivity to glare without an underlying diagnosed condition. The physician’s certificate must be grounded in an actual diagnosed condition.
Who Can Sign the Medical Exemption Certificate
The statutory language in CVC 26708.2 specifies a licensed physician and surgeon as the signing authority. An optometrist is specifically authorized for vision-related conditions.
- Your primary care physician qualifies and can sign the certificate
- A dermatologist qualifies and is the most natural choice for skin conditions
- An ophthalmologist or optometrist qualifies for eye and vision conditions
- A neurologist qualifies for photophobia related to migraines or neurological conditions
- A rheumatologist qualifies for lupus-related photosensitivity
- An oncologist qualifies for chemotherapy-related photosensitivity
Do not let any source tell you that only a dermatologist can sign the certificate under current California law. AB 1303 expanded signing authority to any licensed physician and surgeon for UV-sensitivity conditions. For the full front window rules that the exemption modifies, see the California front window tint guide.
What the Certificate Must Include
There is no official California DMV form for the window tint medical exemption. The certificate is a signed physician statement. To be effective at a traffic stop and in court, it should include:
- The patient’s full legal name
- The physician’s full name, license number, and practice address
- The specific medical condition requiring UV or light protection
- A statement that the patient should not be exposed to UV rays or sunlight due to the diagnosed condition
- The physician’s signature and date
- Ideally: the specific vehicle year, make, model, and license plate or VIN
Why including vehicle information matters: The exemption covers the specific vehicle in which the certificate is carried. If you own multiple vehicles, obtain a certificate for each vehicle where the exemption-qualifying tint is installed.
Step-by-Step: Getting the California Window Tint Medical Exemption
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Confirm your diagnosis with your physician. The certificate must be grounded in an actual diagnosed condition. Schedule an appointment with the appropriate specialist if you do not already have a documented diagnosis.
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Request a written physician certificate. Ask your physician to prepare a signed letter on their letterhead that includes all the elements listed above. This is not a standard form. The physician writes it.
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Have 35% VLT film installed on front side windows. Work with a professional installer. Request a certificate from the installer under CVC 26708(c) identifying the film and its VLT specification.
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Keep both certificates in the vehicle. The physician certificate and the installer certificate should both be accessible in the vehicle at all times.
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Do not apply exemption film to the windshield. The medical exemption under CVC 26708.2 does not cover windshield tinting. That restriction is absolute and has no exemption pathway.
What the Medical Exemption Does Not Cover
The Windshield
Medical exemptions do not cover the windshield. CVC 26708.2 applies to front side windows only. No physician certificate, no matter how thoroughly documented, permits tinted film below the AS-1 line on the windshield.
Rear Windows
You do not need a medical exemption for rear windows. California allows any darkness on rear side windows and the rear window for all drivers. A medical exemption for rear windows is unnecessary and redundant.
Color and Reflectivity Restrictions
The exemption does not override the prohibition on red, amber, or blue tint, nor California’s reflectivity standard. Mirror or metallic finish film is prohibited regardless of medical documentation.
Other Vehicles the Driver Operates
The certificate covers the vehicle it describes, not the driver across all vehicles they operate. If you drive a rental car, a spouse’s car, or a company vehicle, the certificate for your personal vehicle does not cover tint violations in those vehicles.
How to Use the Exemption at a Traffic Stop
Being stopped for suspected front window tint when you have a medical exemption requires a calm, organized approach.
- When the officer approaches, do not volunteer that you have tinted windows. Wait for the officer to raise it.
- When asked about front window tint, state clearly: “I have a medical exemption under CVC 26708.2. I have the physician’s certificate in the vehicle.”
- Present both documents: the physician certificate and the installer certificate showing the film VLT.
- Do not argue the law at the roadside. If the officer issues a citation despite the documentation, accept the citation and contest it in court.
- At the court hearing: Present both certificates. The medical exemption is a statutory defense to a CVC 26708 front window tint citation when the documentation is current and the film meets the 35% VLT standard.
If you receive a citation despite presenting valid documentation, the California window tint ticket guide covers the fix-it process and court defenses in detail.
The Darkness Ambiguity: What You Can Realistically Install
| Film VLT | Characterization | Enforceable Under Exemption? |
|---|---|---|
| 35% | Dark but visible tint | Yes. Widely accepted under enforcement practice. |
| 20% | Very dark | Gray area. Difficult to characterize as “clear and transparent.” Risk of citation despite certificate. |
| 5% (limo tint) | Near-opaque | Not defensible under “clear, colorless, and transparent” statutory language. |
| 70%+ | Near-clear | Legal for all drivers without any exemption. No certificate needed. |
Install 35% VLT film on front side windows under the medical exemption. That film level satisfies both the statutory language and enforcement practice. California is one of the strictest states for front window tint nationally — compare all 50 states in the window tint laws by state guide.
California Window Tint Medical Exemption FAQ
Who qualifies for the California window tint medical exemption?
Anyone with a medical condition documented by a licensed physician that requires protection from UV rays or sunlight. Common qualifying conditions include lupus, melanoma history, xeroderma pigmentosum, albinism, photophobia, post-surgical eye sensitivity, and chemotherapy-related photosensitivity.
Does the California window tint medical exemption allow any darkness on front windows?
The statute says “clear, colorless, and transparent material” without specifying a VLT floor. Enforcement practice treats 35% VLT as the practical minimum. Film darker than 35% is difficult to defend as “clear and transparent” regardless of the certificate. Install at 35% VLT to stay within the defensible range.
Can my regular doctor sign the medical exemption certificate?
Yes. Any licensed physician and surgeon in California can sign the certificate. You do not need a specialist unless your condition is best documented by one. An optometrist can sign for vision-related conditions.
Does the medical exemption cover windshield tinting?
No. The medical exemption under CVC 26708.2 applies to front side windows only. Windshield tinting remains prohibited for all drivers including those with valid medical exemptions.
Do I need a medical exemption for rear windows in California?
No. California allows any darkness on rear side windows and the rear window for all drivers without any medical documentation.
What happens if I get pulled over with medical exemption tint?
Present your physician certificate and installer certificate to the officer. If cited, contest the citation in traffic court with both certificates as your defense. A properly documented exemption is a statutory defense to a CVC 26708 front window violation.
Does the certificate need to be on a specific form?
No. California does not have an official DMV form for the window tint medical exemption. The certificate is a signed physician statement on office letterhead.
Can I use one certificate for multiple vehicles?
No. The exemption covers the specific vehicle the certificate describes. If you have 35% VLT front window tint on multiple vehicles, obtain a separate physician certificate for each vehicle.
Does the medical exemption affect the reflectivity rules?
No. The prohibition on mirror or metallic finish film applies regardless of medical documentation. Even with a valid exemption certificate, tint on front windows must not exceed standard glass reflectivity and cannot be red, amber, or blue.