Colorado’s Air Quality Control Commission (AQCC) is considering a rule that would require that a certain number of medium and heavy duty trucks sold in the state be zero emission, joining several other states in this important effort to reduce emissions from trucks that deliver our groceries, packages and other supplies.

From the AQCC’s Website:

Proposed Clean Truck Rulemaking (2022-2023)

To address climate change and improve Colorado’s air quality, the Air Pollution Control Division plans to propose the following rules to the Colorado Air Quality Control Commission (AQCC) by the end of 2022.

• The Advanced Clean Trucks (ACT) rule would require manufacturers of medium and heavy-duty on-road vehicles to sell an increasing percentage of zero-emission vehicles of their annual sales from model year 2027 and beyond. This would reduce greenhouse gas emissions and other air pollutants.
• The Low NOx Truck rule would require heavy-duty vehicle manufacturers to make cleaner vehicles, improve how they test vehicle engines, and extend engine warranties. Nitrogen Oxides are a family of poisonous, highly reactive gases that are formed when fuel is burned at high temperatures from cars, trucks, buses, power plants and more. This rule would reduce NOx emissions per new vehicle sold by 90% below current standards starting in model year 2027 – providing significant public health benefits.

If adopted in calendar year 2023, these rules would take effect in calendar year 2026, and apply to new vehicles model year 2027 and later.

FACT SHEET: Colorado Clean Truck Rules

Reg 20 Proposed Draft Rule Language 11.15.2022

Please submit questions or comments regarding the draft rule language to cdphe_colevzev@state.co.us no later than December 9, 2022. Note, comments submitted will not become part of the official rulemaking hearing record.

If you wish to submit formal written comments about these proposed rules, please send them to the Air Quality Control Commission (AQCC) after December 13, 2022 by emailing them to: cdphe.aqcc-comments@state.co.us

• December 13-16, 2022, Air Pollution Control Division staff will go before the AQCC to request a rulemaking hearing. If the request is approved, the hearing is expected to be held in April, 2023. All AQCC meetings are open to the public and require registration, which will be available on the AQCC website about two weeks prior to the meeting.
• If you wish to receive AQCC updates about the rulemaking process, including a notice of when meeting registration is open, email cdphe.aqcc-comments@state.co.us with the subject line “updates.”
• You can learn more about ways to participate in the AQCC rulemaking process HERE.