What the percentages mean
Tint is rated by how much light it lets through. The lower the number, the darker the film: 5% is limo dark, 20% is dark, 35% is a medium shade and 50% or 70% is light.
Texas measures the film and the factory glass together. Most factory glass already blocks some light, so a film rated right at 25% can end up darker than 25% once it's on the window. Ask us and we'll help you pick a shade that keeps your front windows legal.
Medical exemption
If you have a medical condition that needs it, Texas allows darker tint on the front side windows and on the top strip of the windshield. You need a signed statement from a licensed physician or licensed optometrist.
Keep the signed statement in the vehicle to show an officer, and bring it to your annual inspection. DPS stopped issuing separate exemption certificates on January 1, 2019, so the signed statement is your proof.
The compliance sticker
DPS asks for one compliance label on the bottom rear corner of the driver's side window, reading "Complies with TTC 547.613(b)". A label on the passenger side is optional.
Other exemptions
The law also exempts vehicles used by law enforcement and vehicles that regularly carry passengers for a fee. If that's you, tell us when you call.
Sources
This is a plain-English summary of the Texas rules, last checked October 16, 2026. It isn't legal advice, and the DPS and the statute are the final word.