Texas Window Tint Law

Section 547.613 does not set one maximum darkness and leave it at that. It first makes it an offense to place material on a windshield, side window or rear window that obstructs the driver's clear view or that alters the color or reduces the light coming through. It then lists the exemptions that let specific tint stay legal. So to be within the law, a tint has to fit one of those exemptions, not just come in under a number.

In practice that means the window matters as much as the darkness. The front windows and the windshield are held to a measured standard. The windows behind the driver are treated far more loosely. The sections below translate the exemptions into what you can actually run on each window.

Alongside the 25 percent light rule, the front side windows and the windshield strip cannot be more than 25 percent reflective, which rules out heavy mirrored or metallic films up front. The windshield strip also cannot be red, blue or amber. That color restriction is written for the windshield, so it is the windshield where colored film is the clear problem.

The back glass has its own catch. A dark rear window is allowed only if the vehicle has an outside mirror on each side that shows the road for at least 200 feet behind. Lose a side mirror and a blacked-out rear window is no longer covered.

Several common situations are exempt outright. Glass that meets federal window standards, including factory tinted or pretinted windows, is allowed, which is why many vehicles come with darker back glass from the maker. Vehicles licensed to carry passengers for a fee, law enforcement vehicles, out-of-state vehicles and commercial motor vehicles are also outside the rule.

Texas also builds in a small tolerance. The state may treat a front side window as compliant if its light transmission or reflectance is off by no more than three percent from the standard, which leaves room for normal measurement variation.

Window tint can surface in a collision claim, usually as an argument about visibility. An insurer may suggest that dark glass kept a driver from seeing a hazard in time. Whether that holds depends on the facts, the lighting and the crash itself, and it is weighed under Texas proportionate responsibility in Chapter 33 of the Civil Practice and Remedies Code.

Illegal tint does not automatically assign blame, and a driver who caused a crash does not escape responsibility because the other car had dark windows. If a crash is behind your question, the Cedar Park car accident guide explains how Texas handles fault and damages.