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Department of Environmental Quality

The Department Environmental Quality (DEQ) administers state and federal laws and regulations for air quality, water quality, water supply and land protection.

Agency Info

Motor vehicle owners can find a motor vehicle inspection station, view an emissions report and other information about emissions testing for vehicles garaged in Arlington, Fairfax, Loudoun, Prince William, Stafford and the cities of Alexandria, Fairfax, Falls Church, Manassas, and Manassas Park.

Need Help With This Service?

For additional help regarding this service, please contact the Department of Environmental Quality.

For general help and information please contact:
Mobile Source Operations Duty Officer
By phone at (800) 275-3844