Louisiana Window Tint Law: A 2026 Guide
How dark you can legally go on each window, what the AS-1 line means, how the medical exemption works, and what happens if you get pulled over. Written by a shop that has been tinting in LaPlace since 1987.
First, what VLT actually means
Every tint law in the country is written in terms of VLT, or visible light transmission. It is the percentage of visible light that makes it through the window, counting the glass and the film together. Higher numbers are lighter. A 5% film, what people call limo tint, lets only 5% of light through and is very dark. A 40% film is noticeably lighter and is what Louisiana requires on your front side windows.
The number that matters to a state trooper is the combined measurement, not the number printed on the film box. Factory glass already blocks some light before any film goes on, so a 50% film on tinted factory glass can meter out well under 40%. That is one of the most common ways drivers end up with a ticket they did not expect.
Legal tint percentages in Louisiana
| Window | Passenger cars | SUVs, vans & multipurpose vehicles |
|---|---|---|
| Windshield | Non-reflective tint allowed above the AS-1 line only (or the top five inches if no AS-1 line is marked). | |
| Front side windows | More than 40% VLT | More than 40% VLT |
| Back side windows | More than 25% VLT | More than 12% VLT |
| Rear window | More than 12% VLT | More than 12% VLT |
Two rules apply no matter what you drive. The front side windows must stay above 40% VLT on every vehicle, with no exception for SUVs or trucks. And if you tint the rear window at all, the vehicle needs dual side mirrors so the driver keeps a usable view down both sides.
Reflectivity and color limits
Darkness is not the only regulated property. Louisiana also limits how mirrored a film can be, because a highly reflective window bounces sunlight into other drivers' eyes. Metallic and mirror-finish films that exceed the reflectance limit are not legal even when their VLT is fine. Certain colors, red and amber in particular, are restricted because they can be confused with signal and emergency lighting.
The AS-1 line, in one sentence
Look at the top corner of your windshield and you will find a small marking that reads AS-1. It marks how far down the glass a tint strip may legally extend. Anything below that line has to stay clear. If your windshield has no AS-1 marking, the rule falls back to the top five inches.
Medical exemptions
Louisiana recognizes that some people genuinely cannot tolerate normal sun exposure through glass. Drivers with conditions like lupus, solar urticaria, severe photosensitivity, or certain eye and skin disorders can qualify for an exemption allowing darker film than the standard limits.
The exemption is documentation-based. You need a signed statement from a licensed physician or optometrist identifying the condition and the need for reduced light, and you must carry that paperwork in the vehicle. An officer who meters your windows and finds them out of range will ask for it on the spot, and a copy sitting at home does you no good at the roadside. Requirements and forms are administered through the state, so confirm the current process before you have darker film installed.
Penalties for illegal tint
Illegal tint is a primary offense in Louisiana. That means an officer does not need another reason to stop you; the windows alone are enough. Enforcement is done with a handheld meter clipped over the glass, which gives a reading in seconds.
- A fine, and it escalates. A first violation is a relatively modest fine, and repeat violations cost more. Amounts vary by parish and court, so treat any specific figure you read online with caution.
- An order to remove the film. Frequently the real cost is not the ticket. You pay to strip the illegal tint, then pay again to have legal film installed.
- Inspection problems. Tint that fails a meter check can hold up your vehicle inspection sticker until it is corrected.
- Insurance and resale friction. Non-compliant modifications can complicate claims and make a vehicle harder to sell to a buyer who does not want to redo the windows.
This page is general information from a tint installer, not legal advice, and statutes change. For the controlling language, consult the Louisiana Revised Statutes or the Louisiana State Police, or call us and we will tell you what we can and cannot install on your vehicle.
Get tint that is dark, legal, and stays that way
There is a persistent myth that legal tint is not worth doing. It is not true, and the reason is that darkness and heat rejection are two different properties. A quality ceramic film at a legal 40% VLT will reject far more infrared heat than a cheap dyed 20% film that gets you a ticket. You end up with a cooler car and no reason to watch the mirror.
At our shop on Airline Highway we meter the glass before quoting, tell you exactly where each window will land, and install film that holds its color instead of fading purple in two Louisiana summers. Customers come to us from Reserve, Destrehan, Norco, Luling, Boutte, Kenner and Metairie, and plenty of them arrive after having illegal film removed somewhere else.
- We meter your glass first so the finished VLT is a known number, not a guess off the film box.
- Lifetime warranty on the tint we install, backed by a shop that has been at the same address since 1987.
- Ceramic options that maximize heat rejection at a legal light level.
- Free estimates within 24 hours and same-day installation on most vehicles.
See our full window tinting services for automotive, residential and commercial film.
Frequently asked questions
Is 20% tint legal in Louisiana?
Not on the front side windows. Those must allow more than 40% of light through, so 20% film is too dark for the driver and front passenger windows. On a passenger car it is legal on the rear window, which only has to stay above 12%. The back side windows are the tricky case: the limit there is 25%, and because factory glass already blocks light before any film goes on, a 20% film will meter below that. Let us measure your glass before you commit to a shade.
Can police pull you over just for tint?
Yes. Illegal tint is a primary violation in Louisiana, so an officer can stop you for the windows alone with no other traffic offense involved. They measure it at the roadside with a handheld tint meter.
Does Louisiana allow a medical exemption?
Yes, for conditions aggravated by sunlight such as lupus or severe photosensitivity. It requires documentation signed by a licensed physician or optometrist, and you must keep that paperwork in the vehicle to show during a stop.
Can I tint my whole windshield?
No. Only a non-reflective strip above the AS-1 line is allowed, or above the top five inches if your windshield has no AS-1 marking. The rest of the windshield must stay clear.
Do SUVs really get to go as dark as they want in back?
No, and this is a widespread misconception. SUVs, vans and other multipurpose vehicles do get more latitude behind the driver, down to more than 12% VLT on the back side windows instead of 25%, but that is still a limit and not unlimited darkness. The front side windows are held to the same 40% standard as any car.
Want legal tint done right the first time?
We will meter your glass, tell you what is allowed, and quote it free within 24 hours.
(985) 652-5511