Our staff is doing the best they can to get everyone through
the testing process as quickly and safely as possible.
Air Care, like many businesses, is a few staff members short right now.
While we are working diligently every day to add team members,
it takes time to train new staff.

Please keep this in mind when:

The line is a little longer than usual,

The testing process takes a little more time,

Not all lanes are open due to staff shortages, or equipment malfunction, and

Speaking to staff who are working as hard and as fast as they are able.

Thank you for your understanding. 

Attempt to complete your vehicle registration renewal ONLINE
BEFORE visiting an Air Care Station

Due to COVID-19 adjustments to testing protocols, and delays in the postal system, it is possible that you may not need to go to an emissions inspection station; you may have already passed emissions through the RapidScreen roadside option, or you may not have received your registration renewal card in a timely manner. More vehicles are receiving passing emissions through the RapidScreen roadside testing option, and some registration notifications may not reflect this.

To renew online:
1) Be sure to have available:

  • License plate number,
  • Vehicle Identification Number (VIN), (You can find the 17-digit VIN on your insurance card, driver's side door of the vehicle, or the title.)
  • Current Colorado insurance information, and
  • Valid credit card or check.

2) Got to
3) Click on  Renew a vehicle registration (The car icon under 'Vehicle Quick Start.')
4) Read instructions and press the 'NEXT' button to begin the registration process.

If you receive a message that says your vehicle requires an inspection before it can be registered, please visit one of the 18 Air Care Colorado locations for an inspection and try again.


Contact Us

We're here to answer your questions and concerns.

Air Care Colorado maintains a consumer hotline for more information about emissions inspections. Customer service representatives are available from 8 a.m. to 5 p.m. Monday to Friday. Both English- and Spanish-speaking operators are available. Se habla Espanol. Please call:

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

Recorded information is available on the hotline 24 hours a day. Motorists also may leave a voicemail message during off hours. Calls will be returned during regular business hours.

Want to email us a comment? Access our comments form.


Learn the answers to commonly asked questions.





Current Colorado Smoke Outlook

Repair Bay

Vehicle repair/service shop and technician forum.

Please contact our Repair Industry Liaison for information on becoming an Air Care Colorado certified facility.


Repair Bay

AirCare Blog


Air Care and the Rockies Want to Keep You Informed About the Metro Area’s Summertime Air Quality

Jul 9, 2019, 8:00 AM

If you have visited the Air Care Colorado website in the past, surely you have noticed our new…

Read More


ACC: Bike to Work Day

Jun 1, 2019, 8:00 AM

Bike to Work Day is Wednesday, June 26, and Air Care Colorado is pleased to once again participate…

Read More


Readiness Monitors

May 1, 2019, 8:00 AM

Readiness monitors are commonly-misunderstood components of modern vehicles that may determine the…

Read More

© 2018 Envirotest