Emissions testing

Some counties in Washington State require emissions testing every 2 years. If you live in the following counties, you may need to have your vehicle tested:

  • Clark
  • King
  • Pierce
  • Snohomish
  • Spokane

Getting an Emissions Test

For more information, including the locations and hours of emissions testing, see the Department of Ecology emissions website.

Exempt vehicles

Certain hybrid vehicles that have an efficiency rating of at least 50 miles per gallon for city driving are exempt from emissions testing.

Frequently asked questions

My tabs expired because my vehicle wasn’t running when I needed to get an emissions test. Now that my vehicle is repaired, how can I legally drive it to the emission test station?

Either of the following permits will allow you to drive your vehicle to an emission inspection:

  • A 2-day transit permit. A transit permit allows you to drive the vehicle from your home to an emission test station and then to a local vehicle licensing office. There is no fee for a transit permit.
  • A 3-day trip permit. Trip permits may be purchased at any vehicle licensing office, and cannot be used for off-road vehicles.

See also: