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Emissions Testing

The State of Colorado mandates motor vehicle emissions testing in some areas of the state to reduce air pollution. For more information about the program and testing locations, please visit the Air Care Colorado Web site, or contact the state Emissions Technical Center at 970-AIR-TEST (970-247-8378).

Gasoline Vehicles

As of November 1, 2010 (press release - PDF), the enhanced motor vehicle emissions testing program has expanded to portions of the North Front Range, including Fort Collins. The program is part of a suite of strategies that will help achieve compliance with ground-level ozone health standards.

The Fort Collins emissions testing station is located at 835 South Frontage Road; East of I-25 and South of Hwy 14. See Map and details.

Portions of Weld and Larimer Counties, along with the seven metropolitan Denver area counties, are out of compliance with federal health-based pollution standards for ground-level ozone--a health hazard to everyone, especially young children and the elderly.

The emissions testing program, which encourages regular vehicle maintenance, is designed to improve air quality and bring the area back into compliance with federal standards by reducing pollution that can lead to the formation of ground-level ozone. Vehicles are one of the largest contributors to the formation of this harmful pollutant.

For information about waivers from the gasoline emissions testing program, please visit The State of Colorado's Website.

Diesel Vehicles

Diesel vehicles registered or regularly operated in Fort Collins, Loveland, Greeley and the Denver/Boulder metro area are also required to receive an emissions test. New diesel vehicles are exempt for four years.

View a list of diesel emissions testing stations.