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Air Quality

Physical Address: 215 N Mason St, Fort Collins, CO 80524
Mailing Address: PO Box 580, Ft. Collins, CO 80522-0580
Phone: (970) 221-6600
Fax: (970) 224-6177
Email:

Emissions Testing

Gasoline Vehicles
As of January 1, 2007, gasoline vehicles in Larimer, Weld, and El Paso counties are no longer required to have an emissions inspection to be sold, registered for the first time, or reregistered in these counties.

Diesel Vehicles
Diesel vehicles are still required to receive an emissions test. New diesel vehicles are exempt for the first two years. Click here (pdf) for a list of diesel emissions testing stations.

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