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Consumer Information
 

Consumer Hotline

For more information about the Air Care Colorado emissions testing program, you may call the Air Care Colorado Hotline, 303-456-7090. Recorded information is available on the hotline 24 hours a day. Customer service representatives are available on the hotline from 8 a.m. to 5 p.m. Monday through Friday, including a Spanish-speaking operator. Se habla Espaņol. A message may be left in the voice mailbox during off-hours, and your call will be returned during business hours.

Station Hours

Hours of operation for the testing centers are Monday through Friday, 8:00 a.m. to 5:30 p.m., and Saturday 8 a.m. to
1 p.m.
Centers are closed Sundays and all state holidays.

Best Times to Test

Avoid waiting in line. Come on Saturdays, early mornings, and during the middle two weeks of the month.

High volume times to avoid are Mondays, the lunch hour, the first business day after any holiday, and the first few and last few days of the month.

Motorhomes

Motorhomes can be tested at any of the 14 test centers; however, they are most easily accommodated at the Arvada, Golden, Parker, Denver Southeast, Sheridan and Stapleton test centers.

Payments

1982 and newer vehicles require an enhanced emissions test every two years at a cost of $25.
 
1981 and older vehicles require a two-speed idle test every year at a cost of $15.00.

Payment for the test may be made by cash or check. (Please make checks payable to: ACC.)
Credit cards are not accepted,
and there are no ATMs at Air Care Colorado centers.

Free Retest

If your vehicle fails the emissions test, the first retest is free within ten calendar days (not ten business days). If the 10th calendar day falls on a Sunday or holiday when the stations are closed, the free retest will be extended to the 11th day.

Free Evaluations

Vehicles that fail the test, get repairs, then fail a second test are eligible for some free help in diagnosing the problem. The State of Colorado maintains Emissions Technical Centers that can help evaluate your vehicle for free. Call 303-744-2442 (and press 3) for more information or an appointment.

Do You Need a Test?

Make sure you need a test before you present your vehicle for testing! State regulation (D.O.R. Air Program Regulation 2,200-E) requires testing centers to test all vehicles that are presented for testing. Under this regulation, emissions inspectors are prohibited from making a judgment on whether your vehicle really needs a test. No refunds can be given for emissions tests on vehicles that were not actually due for a test. If you are not sure, call the Air Care Colorado Hotline at 303-456-7090, or your county motor vehicle office to ask. Effective July 1, 2001, window stickers were eliminated by state law.

Change of Ownership

Used vehicles that are for sale are required to have a new emissions test, even if the current inspection report still has time on it. However, there is an exception to this rule: If a newer used vehicle is sold and there are 365 days or more left on the original 4-year exemption, the vehicle does not require a new test at the time of sale.

It is the seller's responsibility to obtain the test. This is a consumer protection for the buyer. The seller must provide the emissions test paperwork to the buyer for vehicle registration purposes. The buyer must use this paperwork to register the vehicle within 120 days (emissions test paperwork that is not used for vehicle registration purposes expires in 120 days). A vehicle dealer may offer customers a voucher enabling the buyer to obtain a test for free. The customer has the right to refuse this arrangement.

Click here if you purchased a vehicle from a dealer, used a dealer voucher to obtain a test, and the vehicle failed the test.

Grace Period

There is a  30-day grace period for your annual or biennial emissions test expiration. However, keep in mind that more than 30 days over the expiration could cost you a $50 ticket. If you need to apply for an extension, call the state Emissions Office at 303-205-5603.

Independent Test Centers & Diesel Test Centers

1981 and older vehicles may be tested at any of the independent test centers as well as at the 14 centralized test centers. For locations of the independents, call 303-692-3270. 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 website, or call them at 303-744-2442 and press 3.

Obtaining Quality Repairs

If your vehicle fails an emissions test and needs repair, help is available to find a high quality repair shop in your area. Consult the Emissions Repair Guide that you were given when your vehicle failed the test.

Tire Sizes and Dynamometers

Tires that are smaller than 17 inches or larger than 34 inches cannot be safely tested on the dynamometer.

Only vehicles with manufacturer-equipped undersized or oversized tires that do not fit safely on the dynamometer will be authorized by the state to undergo an idle test instead of a dynamometer test. Vehicles with tires larger or smaller than original equipment that do not fit safely on the dynamometer must be returned to stock condition for testing. Vehicles with non-original undersized or oversized tires will not receive authorization from the state for an idle test.

Waiver Limits

Effective January 30, 2003, the state has raised the waiver limit. Owners of failing vehicles 1968 or newer now must spend at least $715 on repairs before they may apply for a waiver. If your vehicle has failed twice and you have spent $715 on repairs, you may apply for a waiver from passing the test. Hardship waivers are also available.

Complaints & Consumer Feedback

Have a comment, question, suggestion or complaint about the vehicle emissions program? All consumer concerns are taken seriously, and will be addressed promptly.

Complaint forms may be requested and filled out at any emissions test station. These forms are forwarded to the customer service dept. for prompt attention. You can also call the the Air Care Colorado hotline at 303-456-7090, or send us an e-mail. Please include your name, street address and a daytime phone number in your e-mail. If you have a complaint regarding an emissions test you obtained on your vehicle, please include your vehicle's VIN number and date of test in the e-mail as well.

Alternatively, complaints may be made to the Emissions Program office at the Colorado Division of Motor Vehicles, Emissions Office, by phone at 303-205-5603 or by e-mail. If you have a complaint about ineffective emissions repairs or about a vehicle you purchased without a valid emissions sticker that subsequently failed its emissions test, call this state office.