Emissions Testing

The State of Colorado mandates motor vehicle emissions testing in some areas of the state to reduce air pollution. This is not a City of Fort Collins program, and the City government does not offer emissions testing. For more information, please contact the state Emissions Technical Center at (303) 744-2442.

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 re-registered in these counties.

If your gasoline vehicle is registered in or regularly operated in the Denver metro/Boulder area or an area that requires emissions testing, see Air Care Colorado for gasoline emissions testing locations.

(NOTE: Gasoline motor vehicle testing is likely to return to the North Front Range area in 18 to 36 months to help reduce ground-level ozone pollution.)

Diesel Vehicles

Diesel vehicles registered or regularly operated in Fort Collins, Loveland, Greeley and the Denver/Boulder metro area are still required to receive an emissions test. New diesel vehicles are exempt for the four years. View a list of diesel emissions testing stations (PDF).