Texas window tint laws set a 25% VLT minimum for front side windows under Texas Transportation Code Section 547.613. Back side and rear windows may carry any darkness if the vehicle has outside mirrors on both sides. Windshield tint is limited to the strip above the AS-1 line. This guide covers penalties, exemptions, and enforcement, sourced from the Texas Department of Public Safety.
What Key Terms Mean
Visible Light Transmission describes the percentage of light passing through the combined glass and film on a window. A higher VLT number means more light gets through and the tint looks lighter. A lower number means less light passes through and the tint looks darker. Texas law measures VLT as glass and film together, not the film rating printed on the product box.
The AS-1 line is a mark near the top of a windshield showing where a manufacturer’s sun shading strip ends. Texas law allows tint only above this line, or in the top five inches if no AS-1 line exists. Luminous reflectance measures how much light the tint bounces back toward oncoming traffic. Texas law separately limits reflectance, apart from darkness.
What Texas Law Says About Front Side Windows
Front side windows in Texas must allow more than 25% VLT under Texas Transportation Code Section 547.613. This means tint on the windows beside the driver and front passenger cannot block more than 75% of visible light when glass and film are measured together. Front side windows also cannot exceed 25% reflectance. Both limits apply at the same time to every front side window in the state.
What Texas Law Says About the Windshield
Windshield tint in Texas is restricted to the area above the AS-1 line, or the top five inches if the windshield has no AS-1 line. Within that strip, the film combined with the glass must allow at least 25% VLT and must not exceed 25% reflectance. Tint below that strip is not permitted for ordinary drivers. Tint above the line also cannot be red, blue, or amber under state law.
What Texas Law Says About Back Side and Rear Windows
Back side windows and the rear window in Texas carry no minimum VLT requirement when the vehicle has an outside mirror on each side. This means these windows may legally use very dark tint, far below the 25% line that governs the front. The outside mirror condition exists because a heavily tinted rear window can block the driver’s view through the interior mirror, so outside mirrors restore that visibility.
Who These Rules Apply To
Texas Transportation Code Section 547.613 applies to a person operating a motor vehicle with the restricted tint, and separately to any installer or manufacturer who places that material onto a vehicle window. This means both the driver and the business that installed the film can face responsibility under the statute. Certain vehicles carry different treatment, including law enforcement vehicles and certain commercial motor vehicles under Texas Transportation Code Section 644.001.
Penalties for Illegal Window Tint
A person who operates a vehicle with tint that violates Texas Transportation Code Section 547.613 commits a misdemeanor offense. Separately, a business in the tint installation trade who places noncompliant material on a window can face a misdemeanor punishable by a fine not to exceed $1,000 under Texas Transportation Code Section 547.613 subsection a-1. This installer fine applies on top of the general misdemeanor for the vehicle operator.
Medical Exemptions for Darker Tint
Texas Transportation Code Section 547.613 provides a defense to prosecution when a person operating the vehicle, or a passenger in it, requires shielding from direct sunlight for a medical reason. This defense applies even when the installed tint would otherwise violate the standard VLT and reflectance limits. The statute frames this as a legal defense tied to medical necessity, not a blanket permission to install any darkness.
Correcting a Common Misconception About Exemption Certificates
Many sources still describe a separate state issued window tint exemption certificate or sticker process in Texas, sometimes referencing an older form. The Texas DPS window tinting standards page confirms the Texas Department of Public Safety no longer issues that certificate. A signed medical exemption statement from a licensed physician or optometrist is the current proof, kept in the vehicle and shown if requested during a stop.
How the 2025 Inspection Change Affects Enforcement
Non-commercial vehicles in Texas no longer need a vehicle safety inspection before registration, a change that took effect January 1, 2025. The Texas DPS notice on vehicle safety inspection changes confirms this removed the routine annual check that once reviewed tint compliance for most drivers. This does not mean tint law changed or that tint goes unenforced, since an officer can still cite a vehicle during any traffic stop.
Why This Distinction Matters for Drivers
A driver in Texas can still receive a citation for tint that violates Texas Transportation Code Section 547.613 even without an annual safety inspection checking for it first. Enforcement now depends more on an officer’s observation during routine stops rather than a scheduled inspection. Vehicles in emissions testing counties still undergo a separate annual emissions test, distinct from the eliminated safety inspection and unrelated to window tint.
What Drivers Should Verify Before Installing Tint
Laws and enforcement may change, so drivers should check official state sources for the latest rules before installing tint on any vehicle window. A driver relying on outdated information about certificates or inspection requirements risks a citation even with a good faith belief the tint was compliant. For context on how this informational guide is presented, the Disclaimer below explains its scope.
Disclaimer
This article is for general informational purposes only. It is not legal advice. Lawwalls publishes informational content only and does not provide legal services or legal advice.
For legal advice about your specific situation contact a licensed attorney in your state. Laws change and vary by jurisdiction. Verify current rules with official government sources or a qualified lawyer.