Air Quality > Motor Vehicles

Motor Vehicles

Motor vehicles are one of the main sources of air pollution in Washington. The pollution they cause triggers asthma and is linked to other health problems, including cancer and heart attacks. More than a third of Washington's residents are in an age group that is at risk for health problems from this pollution, or have at least one medical condition that is made worse by it. 

Motor vehicles, along with other transportation-related sources, also produce nearly half of the greenhouse gas emissions in our state. Greenhouse gases cause climate change. Effects of climate change in Washington include reduced snow pack, low summer stream flows, more winter flooding, increased coastal erosion, reduced water supplies for people and agriculture, and further loss of salmon habitat.

This web site provides information about programs that reduce air pollution from motor vehicles, including:

• Emission Testing:
• Private vehicle testing (which vehicles need a test, test station locations, hours, closures, wait times, test fee, etc.)
• Fleet testing
• Lists of Authorized Emission Specialists
• Emission Specialist options for training (For Automotive Technicians)
• Clean Cars
• Diesel Exhaust Programs
• No-idle Program
• Motor Vehicle Emissions Rule