How much window tint is too much in Washington? According to Washington law:
- window tint may not reflect more than 35% of the light hitiing it, and
- must allow at least 24% of the ambient light to pass through.
Here's some tint that is legal:


Window tint meters have developed and been purchased help police enforce the Washington law. Enforcement of the Washington window tint law in the past was nearly no existant because of difficulties in measuring the tint. Officers used to use a card with colors on it and they were to match up the window to the nearst color which would designated the tint percentage. Can you say a little too subjective!
The fine for excessive window tint in Washington is $124.00.