Northern Front Range

Enhanced Vehicle Emissions Testing Program Expands to North Front Range

The Enhanced Vehicle Emissions testing program expanded from the Denver area to parts of Larimer and Weld Counties in late 2010 to control ground-level ozone. The Air Pollution Control Division made the following presentation during the public hearing that provides the regulatory and scientific basis for expanding the program to the north Front Range.

For more information on vehicle emissions testing in Colorado, review our website or call (303) 456-7025 or (970) 247-8378.  For the state Emissions Technical Center, call (303) 744-2442, or (303) 692-3121.


Click on individual questions for more information.

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Why is the emissions program coming back now?

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Why is testing done so differently than it was with our old emissions program?

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Who has to get a test?

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When do I have to get a test?

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How often are motorists required to have their vehicles tested?

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Where do I go to get a test?

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How much will it cost?

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What happens if I fail the test?

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What kinds of testing does Air Care Colorado perform?

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What is the difference?

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Are there any exceptions to the test types?

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Are all wheel drive vehicles tested the same as two wheel drive vehicles?

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What kind of training do the inspectors receive?

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Who administers the program?