LITTLETON, CO DIESEL REPAIR EXPERTS

Diesel Emissions Testing in Colorado: What You Need to Know

Diesel Emissions Testing in Colorado: What You Need to Know | Branch Automotive in Littleton, CO. Closeup image of an exhaust pipe of a pickup car. Concept image of emissions testing.

Diesel Emissions Testing in Colorado: What You Need to Know

Diesel Emissions Testing in Colorado: What You Need to Know

Diesel Emissions Testing in Colorado: What You Need to Know

The state of Colorado acknowledges that vehicle emissions substantially contribute to air pollution. The state has taken huge strides to protect Littleton, CO and the rest of the state’s beauty by curbing vehicle emissions.

Let’s look at diesel emissions laws and diesel emissions testing requirements for drivers in Littleton, CO. And if you need the services of an experienced diesel specialist in Littleton, CO, the team at Branch Automotive can help. We are proud to be one of the top Colorado emissions testing locations.

What is Colorado’s AIR Care Program?

Drivers of diesel vehicles in Littleton and the rest of Colorado have their emissions governed under two programs. One of these programs is the Colorado Automobile Inspection & Readjustment (AIR) Care. It’s implemented to bolster air quality in and around Boulder, CO, Denver, CO, and the North Front Range communities. 

Under this initiative, owners will be notified if the state requires the vehicle to be inspected. These vehicles may need an emissions test every two years unless they successfully passed a test the previous year. The AIR Care initiative primarily covers gasoline vehicles, but diesel drivers aren’t given a free pass.

Do Diesel Vehicles Have to Pass Emissions Testing in Colorado?

In general, yes. Your diesel truck must pass emissions testing administered by a licensed diesel specialist. Specifically, the following counties require your vehicle or fleet of vehicles to pass diesel emissions testing to be registered.

  • Boulder County
  • Jefferson County
  • Broomfield County
  • Denver County
  • Douglas County
  • Parts of Adams County
  • Parts of Arapahoe County
  • Parts of Larimer County
  • Parts of Weld County
  • Parts of El Paso County

How Will I Know If Diesel Emissions Laws Require?

If you see “Emissions Test is Required” on your vehicle registration renewal notice, diesel emissions laws and testing apply. In general, the following types of diesel vehicles are exempt from diesel emissions testing:

Your Diesel May Be Exempt from Diesel Emissions Laws & Testing if It Has a GVWR of Less Than 26,000 Pounds and:

  • Diesel vehicles within the first four model years (unless ownership is being transferred during the last year of the exemption period) are exempt from diesel emissions testing in Littleton, CO.
  • Diesel vehicles that are the model year 1975 and older with collector plates are exempt from diesel emissions testing in Littleton, CO.
  • Vehicles that have the model year of 1976 or newer and have been grandfathered are exempt from diesel emissions testing in Littleton, CO.

Your Diesel May Be Exempt from Diesel Emissions Laws & Testing if It Has a GVWR of up to 26,000 Pounds or More and:

  • Diesel vehicles within the first six model years (unless ownership is being transferred during the last year of the exemption period) in Littleton, CO.
  • Diesel vehicles that are the model year 1975 and older with collector plates are exempt from diesel emissions testing in Littleton, CO.
  • Vehicles that have the model year of 1976 or newer and have been grandfathered are exempt from diesel emissions testing in Littleton, CO.

For more information, reach out to the diesel specialists at Branch Automotive. We are one of the best Colorado diesel emissions testing locations.

How Often Is Diesel Emissions Testing Required?

According to the Arapahoe County government website, the requirements and testing frequency can vary. Diesel vehicles can be considered exempt from diesel emissions testing for the first four model years. The rules for diesel emissions testing in Littleton, CO and Arapahoe County are as follows:

  • Models that are 10 model years or newer should have diesel emissions testing every other year.
  • Models that are 11 years and older should have diesel emissions testing performed every year.

Contact the Diesel Specialists at Branch Automotive

As one of the top Colorado diesel emissions testing locations, Branch Automotive specializes in offering fast, cost-effective, and accurate diesel emissions testing. Our diesel specialist is well versed in all diesel emissions laws and the implications. Whether you have one diesel truck or an entire fleet of diesel vehicles, Branch Automotive can help you adhere to all diesel emissions laws.

Schedule your diesel emissions testing today! Call us at (303) 771-2224 or stop by our facility at 6030 E County Line Rd, Littleton, CO 80126.