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Hillary Hall
Boulder County Clerk & Recorder
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1750 33rd Street
Boulder, CO 80301
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529 Coffman Street Longmont, CO 80501
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722 Main Street

 
Louisville, CO 80027
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Hours of Operation
8 a.m. - 4:30 p.m.
Monday - Friday
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For complete State of Colorado information visit:
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Motor Vehicle Division - Emissions Requirements


Non-Diesel Vehicles - 1981 and Older | Non-Diesel Vehicles - 1982 and Newer | Diesel Vehicles |
Emissions Testing Locations | Rapid Screen


Vehicles 1982 and Newer

1982 model year vehicles and newer require an enhanced emissions test, which is valid for two years.  All gas-fueled vehicles are exempt from emissions testing within the first four years of service.  For example: This year 2009, we will exempt all 2006 through 2010 model year gas-fueled vehicles from emissions testing. Next year in 2010, we will exempt 2007 through 2011 model year gas-fueled vehicles from emissions testing.

Exception:  If a gas-fueled vehicle tests for emissions anytime during the four-year exemption period, the four-year exemption period is invalid and the vehicle must be tested every two years.

Unlike license plates, no grace period is given on emissions tests. 

Motorcycles are exempt from emissions testing requirements.

Air Care Colorado is the testing agency for the counties in the Front Range. They are located at 5655 Airport Boulevard in Boulder and at 4040 Rodgers Road, near Airport and Nelson Roads, in Longmont. Hours are 8 a.m. to 5:30 p.m., Monday through Friday, and 8 a.m. to 12 p.m. on Saturday. The test is $25.00. Cash or personal checks are accepted but not credit cards. For further information, you may call the Air Care Colorado Hotline at 303-456-7090 or check their web site at www.aircare.com.


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