Drive by the testing vans on several occasions. Since there are several variables that may contribute to an invalid reading, and because your vehicle must record two clean readings to pass RapidScreen, it’s a good idea to drive by the testing vans several times in the months prior to your registration renewal.

Air Care Colorado

Diesel Test Centers

Diesel vehicles are not tested at Air Care Colorado test centers. For information on emissions testing requirements for diesel vehicles, visit the Air Pollution Control Division's Diesel Emissions Control page, or call them at 303-744-2442 and press 3.

Below is a listing/map of independent Diesel Test centers. Select a center for more information.

dieselLight2.pngServices light diesel    dieselHeavy2.pngServices heavy diesel    dieselBoth2.pngServices both light and heavy diesel