Colorado at a glance Emissions test in some counties
| Safety inspection | No periodic safety inspection for personal vehicles. |
|---|---|
| Emissions test | Gasoline vehicles need an emissions test in the Denver metro and North Front Range: all of Boulder, Broomfield, Denver, Douglas and Jefferson counties and parts of Adams, Arapahoe, Larimer and Weld. Model years 1982+ test every two years after a seven-model-year exemption. |
| Emissions test fee | Not published — Not verified |
| Find a station / office | Air Care Colorado locations |
Official sources: Colorado DMV: Gas vehicles · CDPHE: Emissions inspections for gasoline vehicles · Colorado DMV gas program area map (PDF). Checked 2026-10-04.
Counties with an emissions test (9)
Adams and Arapahoe are covered west of Kiowa Creek; Larimer and Weld only in designated areas.
- Adams CountyRules, fee and stations
- Arapahoe CountyRules, fee and stations
- Boulder CountyRules, fee and stations
- Broomfield CountyRules, fee and stations
- Denver CountyRules, fee and stations
- Douglas CountyRules, fee and stations
- Jefferson CountyRules, fee and stations
- Larimer CountyRules, fee and stations
- Weld CountyRules, fee and stations
Everywhere else in Colorado: no emissions test for personal vehicles.
About the missing details
Why it's missing: We only list inspection fees published by an official source. Stations or the local program set the price for Colorado, and we couldn't find an official published price, so check the station's posted price or call the program below.
General information
Not specific to Colorado
Where states publish an inspection price, it ranges from free (Illinois, Delaware DMV lanes, Ohio's first passing E-Check) to $55 every two years (Rhode Island). Many states let each station set its own price and only require it to be posted. Texas caps emissions tests at $11.50–$18.50.
Closest place with verified data
El Paso County, TX (about 570 miles away): emissions test up to $11.50
Call or visit the official office
Air Care Colorado locations · Official website
Know the current fee? Tell us. We check every tip against an official source before publishing it.
Frequently asked
Does Colorado require a vehicle safety inspection?
No periodic safety inspection for personal vehicles.
Does Colorado require an emissions test?
Gasoline vehicles need an emissions test in the Denver metro and North Front Range: all of Boulder, Broomfield, Denver, Douglas and Jefferson counties and parts of Adams, Arapahoe, Larimer and Weld. Model years 1982+ test every two years after a seven-model-year exemption.
Which counties are covered?
Adams County, Arapahoe County, Boulder County, Broomfield County, Denver County, Douglas County, Jefferson County, Larimer County, Weld County. Adams and Arapahoe are covered west of Kiowa Creek; Larimer and Weld only in designated areas.