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CO Emissions test

Arapahoe County emissions test

Get the emissions requirement cleared before you renew in Arapahoe County.

Open official rules Open Colorado renewal
Stations Exemptions

Last synced Mar 17, 2026, 7:16 AM UTC from official source .

The core Colorado emissions rules are source-backed, but station parsing remains intentionally conservative.

What to know

Before you go

Testing required Yes This county can hold up renewal until you clear the test.
Typical fee $35.00 Double-check the station fee before you go.
Gas vehicles Gas vehicles starting at 7 years old Use this if the vehicle is gas, hybrid, or another covered light-duty type.
Diesel vehicles Diesel vehicles starting at 4 years old Use this if the vehicle is diesel-powered.

Exemptions

Exemptions

  • all-electric vehicles
  • collector vehicles that qualify under Colorado emissions rules
  • 1975 and older collector vehicles
  • horseless carriage / kit cars / street rods

Do this now

Finish emissions first

  1. Open the official station finder or official county rule.
  2. Complete the test or waiver step that applies to your vehicle.
  3. Go back to Colorado renewal once the requirement is cleared.
Open official rules Open Colorado renewal