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Eligibility

Find out if your vehicle is eligible for the CAAR program. Being eligible doesn't guarantee a repair. Repairs are approved based on the likelihood of improving air quality and the vehicle's condition. 

If you're not sure if you are eligible, apply anyway! We will review your application materials and let you know if you will qualify.

Man in Suit Signing

Proof of Ownership

  • If under age 18, must have your parent/guardian sign all paperwork

  • Valid driver’s license.

  • Title

  • Vehicle registration

Gasoline Pumps

Gasoline or Hybrid

  • Your vehicle must have a gasoline fueled internal combustion engine or Hybrid

  • No diesel powered vehicles

  • No electric

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Failed Emissions Test

  • In most cases: Your vehicle must have a failed emissions test. We are currently only accepting vehicles that have not passed or can't pass emissions at a Colorado emissions testing facility.

  • Exceptions may include your catalytic converter has been stolen or damaged

  • Or otherwise advised by an emissions technician. 

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Residency in Counties Listed

Only vehicles registered in these counties are eligible:

  • Adams County

  • Arapahoe County

  • Boulder County

  • Broomfield County

  • Denver County

  • Douglas County

  • Jefferson County

  • Larimer County

  • Weld County 

Under the Car

Vehicle must be over 8 Years Old and Newer than 2001

  • We are only able to accept vehicles that are between 2001 and 2018. Vehicles that are 2000 or older are not eligible for the program. 

Rusty Old Truck

Operational and Not Oversized

  • Mileage Limit - 300K

  • No altered tires/suspension or safety conditions that prevent testing

  • No deliberately tampered emissions control systems (except stolen emissions control devices)

  • If your Catalytic Converter was stolen or was damage during an attempted steal - you will need a police report as well. 

  • We won't take oversized vehicles such as RV's but will review once you apply.

Contact Us

1445 Market St Suite 260 Denver, Colorado 80202

Tel. 303-629-5450

Ask for Jacob LaBure

© 2024-2025 CAAR by the Regional Air Quality Council 

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