Air quality affects public health, the environment, and quality of
life. Air pollution causes lung disease, makes existing heart and lung
disease worse, and is associated with cancer.
The Air Quality Program's goal is to safeguard public health and the environment by preventing and reducing air pollution. Washington's main sources of air pollution are
motor vehicles, outdoor burning, and wood smoke.
Find information about emission testing, diesel programs,
the "clean car" law, no-idle programs, and other vehicle related issues.
Subscribe to receive updated information about Washington's emission
Indoor Burning (Wood Stoves, Fireplaces)
Learn which wood burning devices are legal in Washington, how wood smoke harms your health, and how to reduce wood smoke.
Outdoor Burning (Non-Agricultural)
Find out where outdoor burning is banned, what the law says, and what you can do instead of burning.
Find agricultural burning permit applications and daily burn decisions.
Find real-time air monitoring data and learn about the health effects of current air pollution levels.
Air Quality Requirements for Business and Industry
Air Operating Permits,
Environmental Permit Handbook,
1st, 2nd, & 3rd Tier Review,
General Orders of Approval,
Greenhouse Gas Reporting Program,
New Source Review/Notice of Construction,
Standards and Plans
Learn about air quality standards, nonattainment areas, and State Implementation Plans (SIPs).
Air Rules and Laws
Find information about current air quality rule making activities.
Air Emissions Inventory
Find information about the Large Business Emissions Inventory and the
Source Test Manual.
Get information about Washington's Regional Haze SIP, BART,
TransAlta, and Washington's Class I areas.
Local Clean Air Agencies
Find the agency responsible for air quality in your county.
Air Quality Program Grants and Loans
Find out what grant opportunities the Air Quality Program offers.