Legal Tint in Alabama: Limits, Medical Exemptions, and Penalties

Legal tint in Alabama starts with one number: every side window and the rear window on a passenger car must let through at least 32% of visible light, measured with a 3% tolerance for instrument variation.¹ SUVs, vans, and trucks follow the same 32% rule on the front side windows but can go much darker behind the driver. The windshield has its own, stricter rule. Get any of these wrong and you’re looking at a misdemeanor citation.

Passenger Car Limits

For sedans, coupes, and station wagons, Alabama uses a single brightness floor. Side windows and the rear window must transmit at least 32% visible light (VLT). No window may reflect more than 20% of incoming light, a cap aimed at glare thrown at other drivers.¹

The 3% tolerance is a measurement allowance, not a buffer to go darker on purpose. An officer must take a reading with a calibrated meter before writing a tint citation, and a reading of 29% can still earn you one.

SUVs, Vans, and Trucks

Multipurpose passenger vehicles and recreational vehicles get a split rule. Front side windows still need to hit 32% VLT. Behind the driver, darker film is allowed to the extent the vehicle manufacturer permits under federal law.²

Two things to know. If you darken the rear windows, Alabama requires outside rearview mirrors on both sides of the vehicle.² And whether your vehicle counts as a multipurpose vehicle is decided by the manufacturer’s federal body-type classification, which you can check on your registration or title. You don’t get to pick.

Windshield Rules

The windshield is tightly restricted. Tint is only allowed on the top six inches, and whatever you put there must be transparent.² That strip cannot be red or amber, since those colors read as emergency lighting or traffic signals.³ The color restriction is specific to the windshield strip. For the rest of your windows, the 32% VLT and 20% reflectivity numbers are what control.

How Factory Glass Changes the Math

Factory glass isn’t crystal clear. A typical window straight from the factory transmits roughly 75% to 85% of visible light. When you add aftermarket film, the two values multiply rather than add. Convert each to a decimal, multiply, then convert back.

Say your factory glass transmits 80% and you install a film rated at 43% VLT. The combined result is about 34% (0.80 × 0.43 = 0.344), which clears the 32% minimum. Drop to a 35% film on the same glass and you land near 28% combined, which fails. A tint shop that works in Alabama should measure your glass before recommending a shade.

The Compliance Sticker

Every vehicle with aftermarket tint or factory glazing that alters light transmission has to display a label, visible from outside, showing the film meets Alabama’s standards.⁴ A tinting dealer has to affix it. You can’t apply it yourself.²

A missing sticker is one of the most common reasons for a tint-related stop, even when the film underneath is perfectly legal. If you bought a used vehicle with tint and no sticker, a tint shop can measure the existing film and apply a sticker if it passes.

Medical Exemptions

If a medical condition requires you to limit sun exposure, you can apply for an exemption allowing darker tint than the standard limits. The application needs a written statement from a physician licensed in Alabama confirming the medical necessity, and the exemption covers any vehicle you own or regularly ride in as a passenger.⁵

For light-sensitive porphyria specifically, the exemption can extend to all areas of the windshield and windows as prescribed by the physician. ALEA may issue the exemption with conditions attached. Once approved, you get a decal with a unique ID number that goes on the windshield of each vehicle the exempt person drives.⁵

Send applications to:

Alabama Law Enforcement Agency
Driver License Division, Medical Records Unit
P.O. Box 1471
Montgomery, AL 36102
Phone: 334-242-4239²

What Doesn’t Count as a Violation

Several categories sit outside the tint restrictions entirely under the state’s exceptions statute:³

Vehicles with windows tinted before factory delivery, or tinted as permitted by federal law.
Vehicles not registered in Alabama.
Adjustable sun visors mounted forward of the side windows, as long as they aren’t attached to the glass.
Federal, state, or local stickers required by law, which can go on any windshield or window.

The factory-tint exemption is the one most people miss. If your SUV came from the dealer with dark privacy glass on the rear windows, that’s legal even when the VLT is well below 32%. The 32% rule targets aftermarket film on passenger cars, not factory glazing.

Penalties

Alabama treats tint violations as misdemeanors, with penalties that climb for repeat offenses inside a one-year window:⁶

First conviction: up to a $100 fine, up to 10 days in jail, or both.
Second conviction within one year of the first offense: up to $200, up to 30 days in jail, or both.
Third or subsequent conviction within one year of the first offense: up to $500, up to three months in jail, or both.

Jail time rarely gets imposed on a first offense, but it’s on the books. The one-year clock runs from the date of the first offense, not the first conviction. Court costs and administrative fees stack on top of the base fine, so the real cost is usually higher than the figures suggest. Citations can go to the driver or to the installer who applied the noncompliant film.

1
Alabama Legislature. Alabama Code 32-5C-2 – Prohibitions Against Operation of Motor Vehicle Under Conditions Which Reduce Light Transmission, Exceptions
2
Alabama Law Enforcement Agency. Alabama Tinting Regulations
3
Alabama Legislature. Alabama Code 32-5C-3 – Exceptions
4
Alabama Legislature. Alabama Code 32-5C-6 – Display of Labels Indicating Compliance, Prohibition Against Installation of Noncomplying Material
5
Alabama Legislature. Alabama Code 32-5C-4 – Medical Exemptions
6
Alabama Legislature. Alabama Code 32-5C-7 – Penalties