Under California Vehicle Code §26708, aftermarket tint has to let at least 70% of visible light through your front side windows. The windshield can only be tinted in a thin strip above the AS-1 line. Back side windows and the rear window have no darkness limit. A §26708.5 medical exemption allows darker fronts.
Below is the OC-driver version: the table, what happens if you get pulled over on the 405, how the medical exemption actually works, and how to get real heat rejection without breaking the code.
California VLT limits at a glance
VLT is the percentage of visible light that passes through the glass and film combined. Higher number = lighter tint.
| Window position | Sedan | SUV / van / truck |
|---|---|---|
| Windshield | Clear below AS-1 line. Non-reflective tint strip allowed on the top ~4 inches. | Same as sedan. |
| Front side windows (driver + front passenger) | 70% VLT minimum (film + glass combined). | 70% VLT minimum. |
| Back side windows | No VLT limit. Any darkness allowed. | No VLT limit. |
| Rear window | No VLT limit. If tinted, dual side mirrors required. | No VLT limit. Dual side mirrors required if tinted. |
California doesn’t split the rules by vehicle class the way some other states do. A Camry and a Suburban get the same 70% front-side rule.
One thing that trips people up: because factory glass already blocks a little light (usually 75–80% VLT on its own), the aftermarket film you add to the front sides needs to be very light, often 88% VLT or higher, so the combined stack stays at or above 70%. If a shop tells you they can put 20% or 35% on your front doors and it’ll pass, they’re wrong.
What VLT actually means
VLT is short for Visible Light Transmission. It’s a single number that tells you how much light makes it through the glass. 70% VLT means 70% of the light gets through and 30% is blocked. 5% VLT, often called “limo tint,” blocks 95%.
CHP officers use a handheld tint meter that reads VLT off both windows at once (glass plus film). If your front sides come back below 70%, you’re out of compliance no matter what the film box said.
Is 5% tint legal in California?
Only on the rear side windows and the back window. Never on the front sides or windshield. A limo-dark 5% film on your driver’s window will fail a CHP tint meter reading every time, and there’s no exemption path that opens up that darkness on the front. Even a medical letter doesn’t get you to 5%.
What happens if you get pulled over for tint
A first tint violation in California is a correctable violation, the kind of ticket most drivers call a “fix-it ticket.” That means the officer’s citing you for a condition on the car, not the way you were driving. The base fine is small, but court fees and assessments stack on top, so the total you’ll see on the citation is usually higher than the number on the code itself. Don’t try to guess it in your head. The total on the ticket is what matters.
To dismiss a fix-it ticket, you:
- Remove the illegal film (or have it removed).
- Get a peace officer or an authorized inspection station to sign the certificate of correction on the ticket confirming the car is now compliant.
- Submit the signed proof and the court fee to the court by the deadline printed on the citation.
Miss the correction window and the fix-it can convert to a regular fine with no dismissal path. Repeat offenses can also stop qualifying as correctable.
If the tint was on the car when you bought it (dealer add-on, prior owner), you’re still the one who has to fix it. The code doesn’t care who installed it.
Medical exemption (Vehicle Code §26708.5)
California allows a medical exemption for drivers or regular passengers with a condition that makes sun exposure through untinted glass a real health problem: lupus, xeroderma pigmentosum, severe photosensitivity, some skin cancers, and similar diagnoses.
Here’s the part most guides get wrong: there is no DMV form. The exemption is a signed letter from a licensed physician or surgeon on their letterhead. The letter needs to identify the patient, the medical condition, and state that darker tint is medically necessary. You keep the original in the glovebox and show it to CHP if you get stopped. Officers can and do reject photocopies, so ask your doctor for two originals if you own more than one car.
The exemption does not turn off the reflective-tint or colored-tint rules. It only opens up the VLT limit on the windows called out in the physician’s letter.
Reflective, colored, and factory tint
Three things stay off-limits even if your VLT numbers are fine:
- Mirror or reflective tint. Films that reflect more light than the untreated glass are prohibited on any window. That rules out the mirrored chrome looks you see at car shows.
- Red, amber, or blue tint. Any tint in those colors is illegal because they can be confused with emergency-vehicle lighting. Neutral charcoal, gray, and bronze are fine.
- Factory-tinted rear glass. If your car came from the factory with dark rear glass (common on SUVs), that’s legal on its own. The catch is that adding more film on top can push you past the reflective or the color rule, so match your ceramic to the factory shade rather than layering.
How OC drivers stay compliant and still get real heat rejection
Living in Orange County, the reason most drivers want tint isn’t the look. It’s the heat coming off the 405 at 3 p.m. in July. The good news: a high-quality ceramic film at 70% VLT on the front sides can reject a serious amount of infrared heat and UV while staying inside the law. You don’t need a dark film to get a cool cabin, you need the right chemistry. Our Orange County tint cost guide breaks down what a legal, high-IR ceramic install actually runs by film tier, and our Irvine shop page has same-week appointments. (Homes and businesses have their own rulebook. Residential window tinting doesn’t share the auto VLT limits.)
If you’re not sure whether your current tint passes, get in touch and we’ll put a meter on it before you get pulled over.
Frequently asked questions
What is the darkest legal tint in California? 70% VLT on the front side windows. Back side and rear windows can be any darkness, including 5%.
Is 20% tint legal on front windows in California? No. 20% VLT is far below the 70% front-side minimum. It’s fine on back side windows and the rear glass, but never on the driver or front passenger window.
Can you tint the windshield in California? Only above the AS-1 line, the manufacturer’s mark at the top of the glass, usually about four inches down. Below that line the windshield has to stay clear, except for a legal medical exemption letter under §26708.5.
How much is a window tint ticket in California? It’s written as a correctable violation (fix-it ticket) on a first offense. The base fine is set by the code, but court fees and county assessments stack on top, so the total on the citation is what matters, not a number online. Fix the tint, get a signed certificate of correction, and submit the proof by the deadline to dismiss.
Do you need to remove the tint to fix a ticket? Yes. You have to bring the car back into compliance. That usually means peeling the front-side film and reinstalling a legal 70% VLT ceramic on the driver and front passenger.
Does a medical exemption let me put 5% tint on my front windows? No. The exemption removes the VLT limit for the windows your doctor specifies, but it doesn’t override the reflective or colored-tint rules. Most exemptions land in the 20–35% range in practice.
Are ceramic tints legal in California? Yes, as long as the film meets the same 70% VLT rule on the front sides. Ceramic just describes the material and how it filters heat. It doesn’t change the darkness math.
Is factory tint on my SUV legal? Yes. Factory-privacy glass on back side and rear windows is legal on its own. Adding more film on top can push you past the reflective or color rule, so keep any added film neutral and non-reflective.
Do I need dual side mirrors if my rear window is tinted? Yes. If the rear window is tinted, California requires functioning driver-side and passenger-side mirrors. Most modern cars have those already.
Can Orange County police pull me over just for tint? Yes. Tint is a standalone stop under Vehicle Code §26708. In practice, most tint citations come off another stop, but CHP does run enforcement on the front sides, especially on the 5 and the 55.
Sources: California Vehicle Code §26708 and §26708.5, California Legislative Information. Nothing on this page is legal advice. For a specific citation or medical exemption question, talk to a lawyer or your physician.
