The Federal Clean Air Act requires vehicle emission inspections in and around areas where air quality exceeds federal health-based standards for carbon monoxide, including Spokane County.
Motor vehicles account for over half of the carbon monoxide emissions in our area.
Emission inspections help curb carbon monoxide pollution by identifying the vehicles generating the most pollution and by requiring their owners to make the necessary repairs to meet emission standards. The Vehicle Emission Inspection Program is administered by the Washington State Department of Ecology.