Washington Window
Tint Law.

Washington limits how much light a tinted window may block and how reflective it may be. The limit counts the factory glass and the film together, so a film that looks light on its own can still be too dark on a vehicle whose glass is already tinted. Draft — pending legal review.

The rules differ for passenger cars and for vehicles the manufacturer classes as a truck or multipurpose passenger vehicle. The class comes from the manufacturer's label in the door jamb, not from how the body looks, so two similar-looking vehicles can fall on different sides of it. Draft — pending legal review.

The windshield has much tighter rules than the side and rear windows, and the shop does not offer full-windshield film or sunroof film online while those rules are under review. Draft — pending legal review.

Mirrored and reflective finishes are not allowed, and the statute restricts certain colours of material and certain ways of applying film. The statute's own wording governs, which is one reason this page is a draft. Draft — pending legal review.

Washington has a path for people who need darker glass for a medical reason. It starts with written verification from a physician. The shop never asks for medical details online, in chat or by text: if you think an exemption applies to you, bring the written verification to the shop and it is handled in person. Draft — pending legal review.

Before any film goes on, the shop checks your vehicle's class and glass against the law as it currently reads, and it installs only film that is compliant for that vehicle unless you show a physician's written verification. Choosing a legal shade is still the vehicle owner's responsibility. Draft — pending legal review.