Window Tint Standards can be found in the Texas Administrative Code, Title 37, Part 1, Rule 21.3.
Note: Windows immediately to the right and left of the driver that have less than 25% light transmission will fail inspection, regardless of the year model of the vehicle.
Sunscreening devices can be applied to the windshield if all of the conditions below are met.
Sunscreening devices can be applied to the side windows to the right and left of the driver if the following conditions are met.
These windows are completely exempted from regulation under the Texas Transportation Code.
A sunscreening device can be applied to the rear window of the vehicle if the following conditions are met.
If a motor vehicle is not equipped with such mirrors then the rear window must meet the following standards:
Below are the exemptions to Window Tint requirements.
If a motorist needs a vehicle's windows tinted on the two front windows darker than the 25% requirement, because of a medical condition, a medical exception is required.
As of 01/01/2019 the Texas Department of Public Safety, Regulatory Services Division, will no longer issue Window Tint Exemption Certificates. The Department will not be accepting, nor reviewing applications for the certificate.
ACQUIRE A MEDICAL EXEMPTION
Motorists must obtain a signed medical exemption statement from a licensed physician or licensed optometrist, which should:
NOTE: The signed medical exemption statement will suffice as proof of a medical exception.
The language of 547.609 of the Texas Transportation Code was interpreted by the Department as requiring one label for each vehicle regardless of how many windows had sunscreening devices applied to them. As a result, in Chapter 21 of the Texas Administrative Code (TAC), TXDPS requires that only one label be attached to the rearmost, bottom corner of the driver’s side window of the vehicle. The passenger side is optional. The content of the label shall include “Complies with TRC Chapter 547” (or “Complies with TTC 547.613 (b)” which is currently utilized). Any other information on the label, including the installer’s name, is optional.