Louisiana Tint Laws (2026): What’s Legal for Car Window Tinting?

arturoalejandrochapa@gmail.com (arturo chapa) — Wed, 17 Dec 2025 20:00:02 GMT

Louisiana Tint Laws (2026): What’s Legal for Car Window Tinting?

If you’re getting your windows tinted in Louisiana in 2026, the law mostly comes down to one thing: how dark the tint is. Louisiana calls window tint a “sun screening device”—basically any film or material added to the glass to cut down sunlight.

The main term: “Light transmission” (VLT)

You’ll hear shops say VLT, which stands for Visible Light Transmission. Louisiana’s law explains it as “light transmission”—how much light still passes through the window after tint is installed.

Here’s the easy way to think about it:

Higher number = lighter tint (more light gets through)
Lower number = darker tint (less light gets through)

So 25% is darker than 40%, because it lets less light pass through.

What Louisiana allows (the numbers that matter)

Louisiana’s current limits are written right into the law. For most vehicles, these are the big ones installers aim for:

Front side windows (driver and passenger): at least 25% light transmission
Side windows behind the driver: at least 25% light transmission
Rear windshield (back glass): at least 12% light transmission

Louisiana also changed the front side window rule from 40% to 25%, and that change took effect August 1, 2025—so this is the standard going into 2026 unless the law changes again.

Reflective / “mirror” tint has a limit too

Some tint looks shiny from the outside. Louisiana measures this as “luminous reflectance” (how much light the film reflects outward). The state limit is: no more than 20% reflectance.

Windshield tint: what’s allowed

For the windshield, Louisiana does not allow tint that reduces light through the main viewing area. But there is an exception most people use:

A transparent strip at the very top
Not red or amber
No more than 5 inches down from the top

That’s the common “sun strip” people put across the top edge.

Don’t skip the label (it’s required)

This part surprises a lot of people: Louisiana requires a small label from the installer.

The label must include the installer’s name and the city of the business
It must be placed on the lower right corner of the driver’s side window

If your tint has no label, that can cause problems even if the tint shade is legal.

Trucks/SUVs: windows behind the driver

Louisiana law says the light transmission requirement does not apply to windows behind the driver on certain vehicles (like trucks and many SUVs, plus buses, trailers, motor homes, etc.).

This is why you’ll see darker rear windows on a lot of larger vehicles.

Medical exemption (for darker tint)

Louisiana does allow a medical exemption in some situations. If the vehicle owner (or certain family members who use the vehicle) has a qualifying condition, they can carry an affidavit signed by a Louisiana-licensed physician or optometrist. The affidavit has to be kept in the vehicle at all times.

Quick “play it safe” tip

If you want a clean, legal setup in Louisiana in 2026: go 25% on the front doors, keep the windshield to the top strip only, and make sure you leave the shop with the required label installed.

shades-of-denv

Louisiana Tint Laws (2026): What’s Legal for Car Window Tinting?

Louisiana Tint Laws (2026): What’s Legal for Car Window Tinting?