Window tinting is one of the most popular vehicle upgrades in Spokane — it blocks UV rays, keeps your car cooler in summer, and gives your ride a cleaner look. But before you get your windows tinted, you need to know what’s legal in Washington state.
Here’s a straightforward breakdown of Washington’s window tint laws so you can make the right choice for your vehicle.
Washington State Window Tint Laws: The Basics
Washington state regulates how dark your window tint can be under RCW 46.37.430. The darkness is measured by Visible Light Transmission (VLT) — the percentage of light that passes through the film. A lower VLT percentage means a darker tint.
Legal Tint Levels for Sedans & Cars
- Windshield: Non-reflective tint is allowed on the top 6 inches only
- Front side windows: Must allow more than 24% VLT
- Rear side windows: Must allow more than 24% VLT
- Rear window: Must allow more than 24% VLT
Legal Tint Levels for SUVs, Trucks & Vans
- Windshield: Non-reflective tint on the top 6 inches only
- Front side windows: Must allow more than 24% VLT
- Rear side windows: Any darkness allowed
- Rear window: Any darkness allowed
This is a big advantage for truck and SUV owners — you can go as dark as you want on the back windows while keeping the fronts legal.
Window Tint Reflectivity Rules
Washington also limits how reflective your tint can be. Both cars and trucks are restricted to no more than 35% reflectivity on any window. Highly mirrored or metallic tints that exceed this limit aren’t legal for road use.
Prohibited Tint Colors
Washington law prohibits window tint in red, amber, or yellow colors. Standard charcoal, gray, and neutral tones are all fine — and that’s what most quality ceramic and carbon films come in anyway.
Dual Mirror Requirement
If you tint your rear window to any degree, Washington requires your vehicle to have dual side mirrors in good working condition. Most modern vehicles come standard with both mirrors, so this is rarely an issue.
Medical Exemptions for Darker Tint
If you have a medical condition that requires extra UV protection — like lupus, photosensitivity, or certain skin conditions — Washington allows darker tint with a medical exemption. You’ll need a signed statement from a licensed physician, and the exemption certificate must be kept in the vehicle at all times.
Sticker & Certification Requirements
Washington requires a certification sticker between the film and glass on each tinted window, identifying the manufacturer and installer. This sticker is placed on the driver’s side window. Professional installers include this as standard — another reason to avoid DIY kits.
Common Questions About Washington Tint Laws
Can I get a ticket for window tint in Washington?
Yes. Illegal window tint is an equipment violation under RCW 46.37.430. Officers can use a tint meter to measure your VLT percentage during a traffic stop. Washington law allows no tolerance — if your tint is darker than 24% VLT on restricted windows, you can be cited.
What’s the fine for illegal window tint in Washington?
Fines typically start around $136 per offense, though they can be higher depending on jurisdiction. You may also be required to remove the illegal tint to clear the violation.
Is 20% tint legal in Washington?
No — 20% VLT is darker than the 24% minimum allowed on front side windows for all vehicles. However, 20% tint is legal on rear side windows and the rear window of SUVs, trucks, and vans.
Is ceramic tint legal in Washington?
Yes. The law regulates VLT percentage and reflectivity, not the type of film. Ceramic tint, carbon tint, and dyed film are all legal as long as they meet the VLT requirements. Ceramic is actually the best option because it blocks more heat while maintaining higher VLT — so you get better performance within legal limits.
Why Professional Tint Installation Matters
Getting your tint done by a professional shop isn’t just about the finished look. A good installer will:
- Ensure your tint meets Washington’s legal VLT requirements
- Use high-quality film with a manufacturer warranty
- Include the required certification sticker on each window
- Prep the glass properly to prevent bubbling, peeling, and purple fading
- Provide a clean, dust-free installation environment
At Snow’s Auto, every tint installation comes with a lifetime warranty and we only use premium ceramic and carbon films. We’ve been tinting windows in Spokane for over 60 years — and we make sure every vehicle leaves legal and looking great.
Get Your Tint Done Right in Spokane
Ready to upgrade your ride with professional window tint? Snow’s Auto offers expert installation with premium films, competitive pricing, and a lifetime warranty on every job.
View our window tinting services or call us at (509) 535-4366 to schedule your appointment.
