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Clean Car emission requirements: Vehicle manufacturers

Required emission standards

Starting with 2009 models, new and used passenger cars, light duty trucks, and medium duty passenger vehicles must be certified to California emission standards. Vehicles must be certified to at least one of the following emission standards to be registered, leased, rented, licensed, or sold for use in Washington:

  • California emission standards (CARB certified arb.ca.gov).
  • Sale in all 50 states (50 state certified).
  • For sale in the northeast.

Vehicles that are "federally certified" or "certified to meet EPA standards" aren't certified to California emission standards and don't meet Washington State requirements.

Required reports

  • Washington State law requires automakers to submit 2 Non-methane Organic Gas (NMOG) Fleet Average Compliance Reports to the Department of Ecology by March 1 each year.
  • Automakers not in compliance with the fleet average requirement must also submit a Fleet Average Enforcement Report.

Warranties for Zero Emissions Vehicles

Washington doesn't require automakers to offer additional extended warranties for sales of Zero Emissions Vehicles like California. However, the Department of Ecology encourages automakers to offer and honor those extended warranties voluntarily as a service to their customers.

Related laws and rules

Related information

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