Is My Window Tint Legal in California?
Pick the glass and the film. You get the answer, the reasoning, and the section of the Vehicle Code it comes from — so you can check it rather than take our word for it.
35% film is not permitted on front side windows.
Section 26708(d)(1) sets a minimum of 88 percent visible light transmittance for material applied to a front side window. At 35 percent this film is well below that, and the finished window would also fall short of the 70 percent combined figure from FMVSS No. 205.
This is the single most commonly ticketed tint offence in California. A first offence is usually correctable, but correcting it means paying to remove film you have already paid to install, and then paying again for compliant film. The removal is the expensive part.
Statutory basis: CVC 26708(d)(1); FMVSS No. 205
General information, not legal advice. Enforcement varies. The full reasoning, with links to the statute, is in our California window tint law guide.
Frequently Asked Questions
Is 35% tint legal in California?
Not on the front side windows. Vehicle Code 26708(d)(1) requires material applied to a front side window to have a minimum visible light transmittance of 88 percent, so 35 percent film is well below the limit. On rear side windows and the rear window, 35 percent is legal — California places no darkness restriction behind the front seats.
What is the difference between the 70% rule and the 88% rule?
They measure different things, and conflating them is the most common error in published guides. The 88 percent figure in Vehicle Code 26708(d)(1) applies to the film on its own, which is how film is sold. The 70 percent figure comes from Federal Motor Vehicle Safety Standard No. 205 and applies to the finished window — glass and film together — which is what gets measured on the roadside. Factory glass already absorbs some light, so a film rated 70 percent produces a window well below 70 percent once installed.
How far down the windshield can tint legally go?
Vehicle Code 26708(c)(1) requires the bottom edge of the material to be at least 29 inches above the undepressed driver's seat, measured from a point five inches in front of the bottom of the backrest with the seat in its rearmost and lowermost position and the vehicle on a level surface. Most guides describe this as the AS-1 line, which is a glass-manufacturer marking that usually lands nearby but is not the legal test.
Does this tool give legal advice?
No. It maps a glass-and-film combination to the section of the California Vehicle Code that governs it, and shows you which section that is so you can check it. Enforcement varies, and vehicles differ. For a specific vehicle or a medical exemption, confirm with the DMV or an attorney.
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