Don't overfill your gas tank. When filling your tank, resist the impulse to get just a little bit more into the tank after the nozzle clicks off. This excess gasoline has nowhere to expand so it saturates a part of the emissions control system resulting in increased emissions.

Air Care Colorado Consumer Information

Consumer Information

For more information about the Air Care Colorado emissions testing program, you may call the Air Care Colorado hotline;

303-456-7090 in the Denver area
970-247-8378 in the North Front Range. 

Recorded information is available on the hotline 24 hours a day.  Customer service representatives are availble from 8 a.m. to 5 p.m. Monday to Friday, including Spanish-speaking operators.  Se habla Espanol.  A voicemail may be left during off hours, and your call will be returned during business hours.

For quick information, such as hours of operation, cost, best times to test and more, access our quick consumer information page.