20% VLT Tint on Front in Washington
Installing a 20% VLT film on your front side windows is prohibited (only films in the 24% - 100% VLT range are compliant) under Revised Code of Washington Section 46.37.430.
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Calculate compliance for all windows in Washington.
WA Technical VLT Blueprint
Interactive diagnostic spec sheet
VLT Compliance Analysis
Visible Light Transmission (VLT) measures the amount of light passing through the glass. In Washington, front side window glass must transmit a minimum of 24% light.
Installing a 20% VLT film on front side windows is illegal in Washington. You risk a citation fine of $136 infraction fine. To stay legal, use a film rated 24% VLT or lighter.
Modifier Workarounds & Legal Options
Medical Waiver
Washington allows drivers with qualifying medical conditions to obtain an exemption for darker tint.
Net VLT Math
Factory glass is pre-tinted (typically 75% VLT). Adding a 20% film results in a net VLT of 15%, pushing you further under the limit.
Ceramic Film
High-quality clear ceramic films at the legal 24% VLT can block up to 99% UV and 80%+ infrared heat without darkening windows.
20% Tint Compliance Metrics Check
Passenger Sedans
| Windshield: | Non-reflective tint allowed above AS-1 line or top 5 inches |
| Front Side: | (Limit: 24%)✗ ILLEGAL |
| Rear Side: | (Limit: 24%)✗ ILLEGAL |
| Rear Window: | (Limit: 24%)✗ ILLEGAL |
SUVs, Trucks & Vans
| Windshield: | Non-reflective tint allowed above AS-1 line or top 5 inches |
| Front Side: | (Limit: 24%)✗ ILLEGAL |
| Rear Side: | (Any)✓ LEGAL |
| Rear Window: | (Any)✓ LEGAL |
Penalty Enforcement Schedule
If local enforcement pulls you over and tests your glass using an electronic light transmission meter, results below 24% VLT trigger local penalties.
| Infraction Class | Fine Schedule |
|---|---|
| First Offense | $136 infraction fine |
| Physical Compliance Check | Mandatory Verification |
Full State Database
Window tint codes regulate windshields, rear sides, and rear windshields under distinct parameters.
See All Washington Rules