California Window Tint Law 2026.
California's window tint rules are straightforward once you understand the difference between front and rear windows. Here's everything you need to know before your install.
The Rules at a Glance.
Must allow at least 70% visible light through. Measured as combined VLT — factory glass + film together.
No VLT restriction. Any film grade allowed — carbon, ceramic, or IR ceramic.
No VLT restriction. If darker than 70%, the vehicle must have side mirrors on both sides (already standard on all modern vehicles).
A non-reflective tinted strip is allowed. Full windshield film must be 70%+ VLT — LLumar AIR 80 (80% VLT) and IRX (70% VLT) both qualify.
How Enforcement Works.
CHP officers use calibrated photometric meters to measure VLT. Critically, they measure combined VLT — factory glass transmittance plus the film. Most factory glass is 75–80% VLT. If your factory glass is 76% and you apply a 35% VLT film, the combined result is roughly 26% — well below the 70% minimum. This catches many people off guard who assume "front windows" only means the film itself.
We measure your factory glass before recommending a film. For front side windows in California, we typically recommend our ceramic films in the 70%+ VLT range — enough to make a heat and UV difference while staying fully legal.
Medical Exemption.
California Vehicle Code 26708.2 allows patients with qualifying medical conditions — including lupus, melanoma, xeroderma pigmentosum, and other photosensitivity disorders — to apply darker tint on front side windows.
A signed physician's statement must specify the required minimum VLT and be carried in the vehicle at all times. We can install to your exemption specification — call us and we'll walk through the documentation process.
Common Questions.
Can I tint my Tesla glass roof as dark as I want?
Yes. California treats panoramic glass roofs (Model Y, Model X) as rear glass. There is no VLT restriction — you can go as dark as you want, or prioritize maximum infrared rejection with a lighter ceramic film.
What happens if I'm pulled over for illegal tint?
In California, illegal window tint results in a fix-it ticket (Vehicle Code 26708). You'll be required to remove the film and get the violation signed off. Fines run up to $197 plus court fees. We verify legal compliance before every install so you never face this situation.
Does a medical exemption require the film to be clear?
No. A medical exemption (CVC 26708.2) allows darker tint on front side windows for qualifying conditions like lupus, melanoma, or photosensitivity disorders. The exemption sets your minimum — the film can still be a dark, colored tint. The signed physician's statement must be kept in the vehicle at all times.
Questions About Your Specific Car?
We verify legal compliance before every install. Give us a call and we'll tell you exactly what's possible on your vehicle.
Call (714) 521-5633Mon–Fri 9:00 AM – 6:30 PM · Sat 8:00 AM – 5:30 PM