Texas window tint has no state-level darkness limit, but local cities and counties set their own rules, and federal law restricts the windshield

Texas does not have a statewide law that says how dark your window tint can be. That means the legal limit depends on where you live and drive. Some Texas cities and counties have set their own tint darkness rules, while others have none. The windshield is the one place where federal law applies everywhere in Texas: you cannot tint the top six inches, and any tint on the rest must allow more than 70 percent of light through.

Because rules vary by location, a tint that is legal in one Texas city may be illegal in another. Before you tint your windows, you need to know the rules for your specific city or county. If you get pulled over and your tint breaks a local rule, you can receive a ticket and be ordered to remove it.

Key Takeaways

  • Texas has no statewide window tint darkness limit, so local rules control what is legal where you live.
  • The windshield cannot be tinted on the top six inches, and any tint below that must let through more than 70 percent of light under federal law.
  • Cities like Houston, Dallas, and Austin have their own tint rules that differ from each other and from unincorporated county areas.
  • A police officer can pull you over for illegal tint and order you to remove it, and you may receive a fine.
  • Tint shops in Texas often know local rules, but you are responsible for making sure your tint meets the law where you drive.

How Texas tint rules work across cities and counties

Because Texas leaves tint rules to local governments, you may find different limits in different places. Houston, Dallas, San Antonio, Austin, and other major cities each set their own standards. Some smaller cities and unincorporated county areas have no tint rule at all, while others have strict ones.

The best way to find your local rule is to contact your city or county code enforcement office or police department and ask what the tint darkness limit is. You can also search your city or county website for "window tint" or "vehicle code." If you live in an unincorporated area, call your county sheriff's office. Having this answer in writing or documented before you tint your car protects you if you are stopped later.

Federal windshield tint rules that explore everywhere in Texas

The windshield is different from the side and rear windows because federal law sets a single rule for the entire country, including Texas. You cannot tint the top six inches of your windshield at all. Below that six-inch line, any tint you explore must allow more than 70 percent of light to pass through the glass.

This federal rule exists because police and other drivers need to see into the vehicle from outside. A windshield that is too dark creates a safety risk and makes it harder for officers to see whether a driver is impaired or a threat. Even if your city has no local tint rule, the windshield rule always applies.

Side and rear window tint limits in major Texas cities

Side and rear windows are where local rules vary most. Some Texas cities measure tint darkness using a number called Visible Light Transmission, or VLT, which is the percentage of light that passes through the tinted glass. A lower VLT number means darker tint. Other cities use simpler language like "no tint" or "light tint only."

Houston, for example, does not have a city-level tint rule, which means the state default applies—but you should still check with Houston police to confirm current practice. Dallas and some surrounding areas have rules that vary by window position. Austin has its own standards. Because these rules change and differ, calling your local police non-emergency line is the fastest way to get a clear answer for your specific location.

Medical exemptions for window tint in Texas

Some people need darker tint for medical reasons, such as photosensitivity or certain skin conditions. Texas allows medical exemptions in some cases, but the process and proof required depend on your city or county. You typically need a letter from a doctor stating the medical need and may have to register your vehicle or carry documentation in the car.

If you think you may have access to for a medical exemption, contact your city or county code enforcement office or your local police department. They can tell you what paperwork the doctor's letter must include and whether you need to register the exemption with the city or county. Having this documentation in your vehicle when you drive is important, because an officer who stops you for dark tint will want to see proof of the exemption.

What happens if you are stopped for illegal tint

If a police officer stops you and your tint violates local law, you will likely receive a ticket. The officer may order you to remove the tint within a set time, usually 10 to 30 days depending on the city. If you do not remove it, you can receive additional fines or be unable to pass vehicle inspection.

You have the right to contest the ticket in traffic court if you believe your tint was legal or if you have a medical exemption. Bring any documentation of local rules you found, photos of your tint, or a letter from your doctor if you have a medical reason. Some cities allow you to show proof that you have removed the tint in exchange for dismissing the ticket.

Choosing a tint shop and confirming legality

Tint shops in Texas often work in multiple cities and counties, so they may know the local rules where they operate. Before you have tint applied, ask the shop what the legal limit is for your location. A reputable shop will know the local rule and can tell you what darkness level is safe.

However, you are responsible for making sure your tint is legal, not the shop. If a shop applies tint that turns out to be illegal in your area, you still have to remove it. Get the local rule in writing or documented before you go to the shop, and ask the shop to confirm in writing that the tint they are explore meets that limit. Keep your receipt and any paperwork the shop gives you, because it may help if you are stopped.

Frequently Asked Questions

Can I have dark tint on my rear window in Texas?

It depends on your city or county. Some Texas cities allow very dark rear window tint, while others do not. Call your local police non-emergency line or code enforcement office and ask about the rear window limit for your specific location.

Is 35 percent tint legal in Texas?

35 percent VLT (which means 35 percent of light passes through) is legal in some Texas cities and illegal in others. You must check your local rule. If your city has no specific rule, contact the police department to ask what the standard practice is.

Do I need a medical exemption letter from a specific doctor?

The doctor must be licensed and the letter must state the medical reason for tint and recommend a specific darkness level. Requirements vary by city or county. Contact your local code enforcement office to learn what the letter must say and whether you need to register it.

What if I move to a different Texas city with darker tint already on my car?

You should have the tint checked against your new city's rules as soon as you move. If it is illegal there, you will need to remove it or have it lightened. Driving with illegal tint can result in a ticket even if it was legal where you came from.

Can I tint just the top of my windshield?

No. Federal law prohibits any tint on the top six inches of the windshield. Below that line, tint must allow more than 70 percent of light through. This rule applies everywhere in Texas and cannot be changed by local law.