Washington Window Tint Laws Explained: Legal VLT Limits for 2026

Washington state’s window tint regulations, found under RCW 46.37.430, are more restrictive than most states in the region. The law sets a 24% VLT minimum on front side windows — a number that gives drivers some flexibility while staying well above the point where visibility becomes a safety concern during the Pacific Northwest’s frequent overcast conditions.

What VLT Percentages Does Washington Allow?

Washington’s tint laws are simpler than many states because they don’t differentiate between sedans and SUVs/trucks. Every passenger vehicle follows the same rules, which makes compliance straightforward whether you’re driving a Civic or a Tacoma.

Tint Reflection Rules in Washington

Washington doesn’t set a specific reflectivity percentage in statute. However, the law does prohibit any material that creates a substantially reflective or mirrored appearance. In practice, this means standard dyed, ceramic, or carbon films are fine, but metallic mirror-finish tints will draw enforcement attention. If your tint reflects more light than a standard car window, it’s likely going to be flagged.

Medical Exemptions in Washington

Washington allows medical exemptions for individuals with conditions that make them sensitive to sunlight. To qualify, you need a certificate signed by a licensed physician or optometrist that specifies the medical condition and the necessary tint darkness. The certificate must be carried in the vehicle at all times and presented to law enforcement on request. The exemption can allow darker tint on the front side windows below the standard 24% minimum.

Penalties for Illegal Tint in Washington

Window tint violations in Washington are treated as an infraction under state traffic law. Fines typically run around $124, though exact amounts can vary by jurisdiction. Officers can pull you over specifically for suspected illegal tint — it’s a primary offense. If cited, you’ll have a set period to either remove the non-compliant film or bring it into compliance. Failure to correct the violation can result in additional fines. The Washington State Patrol and local agencies both enforce tint regulations, with enforcement being particularly consistent in the Seattle-Tacoma metro area.

Window Tint VLT Comparison: Washington State Front Side Windows|24 Rear Side Windows|5 Rear Window|5 Windshield Strip|70 0%

How Washington Compares to Neighboring States

Washington’s 24% front side window limit is more permissive than Oregon (35%) but more restrictive than Idaho, which has no specific VLT requirement for front side windows on trucks and SUVs. If you drive between Washington and Oregon regularly, you’ll want to keep your front side windows at 35% or higher to stay legal in both states. Montana is quite permissive at 24% for front sides as well, so crossing east shouldn’t cause issues.

Does Washington Allow Ceramic Tint?

Yes. Washington doesn’t restrict the type of film material — only the VLT percentage and reflectivity. Ceramic tint, carbon tint, dyed film, and hybrid films are all legal as long as they meet the 24% VLT minimum on front side windows. Ceramic tint is popular in Washington because it blocks significant UV and infrared heat without reducing visible light as much as darker dyed films.

Good Questions, Straight Answers

What is the darkest legal tint in Washington?|The darkest legal tint for front side windows is 24% VLT. Rear side windows and the rear window can be tinted to any darkness, including limo tint (5% VLT). Is 20% tint legal in Washington?|20% tint is not legal on front side windows — it’s below the 24% minimum. However, 20% is perfectly legal on rear side and back windows. Does Washington differentiate between sedans and SUVs?|No. Washington applies the same tint rules to all passenger vehicles regardless of body type. The 24% front side minimum and unrestricted rear windows apply to everything. Do I need a tint sticker in Washington?|No. Washington does not require a manufacturer certification sticker or tint label on tinted windows. Can I be pulled over for tint alone in Washington?|Yes. Illegal window tint is a primary offense in Washington, meaning officers can initiate a traffic stop based solely on suspected tint violations. What tint colors are illegal in Washington?|Red and amber tint colors are prohibited in Washington. Standard gray, charcoal, blue, and neutral-colored tints are allowed.