Vehicle Emissions Testing in Washington
In Washington, a vehicle emissions test is required for many original registrations in some counties. Vehicles have to be tested every other year before completing the registration renewal. Renewal notices are sent annually to vehicle owners, and indicate whether and by what date an emissions test must be completed.
VEHICLES THAT REQUIRE AN EMISSIONS TEST
A car, truck, motor home or RV (recreational vehicle) requires an emissions test when:
- It runs on gasoline or diesel, is between five and twenty five years old and is registered in King, Pierce, Clark, Spokane or Snohomish counties.
- It is a hybrid vehicle between 5 and 20 years old in one of the above counties, which has an EPA fuel economy rating of less than 50 mpg.
VALIDITYEmission tests are valid for 90 days. A valid test is required to reinstate a suspended registration and to complete an original vehicle registration or registration renewal. Used car dealers are required to issue a valid emissions test for any vehicle they sell. Getting an emissions test is the buyer's responsibility when the vehicle is purchased from a private owner.
EXEMPTIONSA vehicle is exempt from emission testing when:
- It is registered outside King, Pierce, Clark, Spokane or Snohomish counties.
- It is a hybrid vehicle that has an EPA fuel economy rating of at least 50 mpg in city driving.