- develop a rule to establish a Colorado Low Emission Vehicle (LEV) program, which incorporates the requirements of the California LEV program, and
- propose that rule to the Colorado Air Quality Control Commission (AQCC) during its August 2018 meeting for possible adoption into the Colorado Code of Regulations by December 30, 2018.
On November 16, 2018, the Colorado Air Quality Control Commission (AQCC) adopted Regulation 20, the Colorado Low Emission Automobile Regulation (CLEAR). As of automotive model year 2022, all new light-and-medium-duty vehicles (up to 14,000 pounds GVWR) and Aftermarket Catalytic Converters sold in Colorado must meet Low Emission Vehicle (LEV) standards. These standards helped preserve existing standards applicable in Colorado, and avoid any roll-back of these applicable standards by the federal government.
In January of 2019, Governor Jared Polis signed an executive order that supported the transition to electric vehicles.
On August 19, 2019, the AQCC adopted a revision to regulation 20 that incorporated a Zero Emission Vehicle (ZEV) standard that requires a certain percentage of new vehicle sales to be ZEVs starting in the 2023 model year. Learn more about Colorado’s ZEV transition.
On April 21, 2023, the AQCC adopted a revision to regulation 20 that incorporated new regulations for heavy duty vehicles (HD Low NOx), advanced clean trucks (ACT), and large entity reporting (LER).
Stakeholder Meeting
Resources
- Colorado Air Quality Control Commission (AQCC).
- Colorado Code of Regulations.
- California Low-Emission Vehicle Program (LEV).
- Regulations for Greenhouse Gas Emissions from Passenger Cars and Trucks.
Contacts
Please send any questions or comments about the Colorado Low Emission Vehicle programs to cdphe_colevzev@state.co.us.