On this page: Upcoming public participation opportunities | Submit public comments: Draft reports | Meeting accommodation notice | Get involved: Air permit public notices | More ways to engage with the state of Colorado | Colorado air quality regulation updates | 10 tips for making effective public comments
Below are ongoing and upcoming public participation opportunities with the Air Pollution Control Division. These events may be in-person, virtual, or hybrid. The division holds regular events such as public meetings, tutorials, and more. The division uses these meetings to share updates, learn from community experiences, and incorporate feedback into our work protecting clean air for all Coloradans.
Questions? Contact cdphe_apcd_outreach@state.co.us. Please include the meeting topic in the subject line.
Stay connected. Sign up for email updates from the Air Pollution Control Division. Sign up for “General Air Division Updates” or a particular topic of interest. You’ll be one of the first to know about upcoming public participation opportunities.
Upcoming public participation opportunities
Public Meetings
The air division’s public meetings provide an opportunity to learn more about air quality and climate change topics. These meetings generally provide opportunities for anyone to ask questions and provide feedback directly to the division. Register for upcoming public meetings below to join and learn more.
The Air Pollution Control Division intends to propose a rule to the Air Quality Control Commission in 2025 to reduce methane pollution from municipal solid waste landfills. Municipal solid waste landfills are significant sources of methane, a potent greenhouse gas that causes climate change. Join us for a public information meeting to learn more about the concept and requirements of the proposed rule. This online meeting will provide time for community members to ask questions and share feedback.
- Virtual event: Saturday, Jan. 11, 2024, 11 a.m.-1 p.m.
View the Air Pollution Control Division's past public participation and outreach opportunities. These serve as a historic archive. These processes are completed.
Regional haze refers to visibility at designated national parks and wilderness areas. Reducing air pollution from different sources can help protect visibility in these areas.
Please submit any comments to cdphe.commentsapcd@state.co.us using the subject line “Round 2 Regional Haze Progress Report.”
Ongoing technical expert online meetings
Technical expert online meetings provide an opportunity to listen to in-depth discussions among subject matter experts. The experts discuss topics related to the division’s work on air quality and climate change. These meetings are streamed live or recorded for transparency. These meetings generally do not provide a public comment or question and answer session. To provide feedback to the division, explore the division’s public meeting opportunities above.
The Air Quality Control Commission’s procedural rules guide how the commission must run meetings and rulemaking hearings. The commission is considering changes to its procedural rules to update the rules and rulemaking process. These updates aim to modernize the process and better meet community needs.
The Air Pollution Control Division and commission are hosting online technical meetings in spring and summer 2024. Interested stakeholders are welcome to join. These meetings will go into detailed discussion about the procedural rules and proposed changes.
For more information about meeting dates and how to register, visit the Updating Air Quality Control Commission procedural rules web page.
Between January 2024 and 2025, the division is hosting a scientific community technical working group. The working group is focused on toxic air contaminants. This group will help advance the 2022 state law: Public Protections from Toxic Air Contaminants Act (House Bill 22-1244). These technical meetings are open to the public. The meetings stream live online.
For more information about meeting dates and how to register, visit the air toxics working group’s web page.
The Nitrogen Oxides (NOx) Reduction Steering Committee began meeting in March 2024. The members committed to holding meetings once a month for at least six months. During these meetings, members engage in technical discussions on potential strategies to reduce NOx pollution. The focus is on reducing NOx emissions from oil and gas exploration and production processes in Colorado.
Meetings are held virtually. Members of the public are welcome to observe.
For more information about meeting dates and how to register, visit the reducing nitrogen oxides from oil and gas web page.
Meeting accommodation notice
Auxiliary aids and services for individuals with disabilities may be provided upon request. Please notify cdphe_apcd_outreach@state.co.us and the Nondiscrimination Coordinator at cdphe_nondiscrimination@state.co.us or 303-692-2102 at least one week prior to the meeting to make arrangements.
Get involved: Air permit public notices
Visit the air permit public notices web page to:
- Submit public comments on individual air permits.
- Sign up for email notifications about air permit public notices and comment periods.
- Learn about, request, or register for public comment hearings on air permits.
More ways to engage with the state of Colorado
For a calendar of upcoming community engagement opportunities across the Colorado Department of Public Health and Environment, visit the department’s public participation website.
If you have questions or need to contact the Air Pollution Control Division, visit the division’s contacts website.
For upcoming Air Quality Control Commission public participation opportunities, visit the AQCC website.
For upcoming Colorado Energy and Carbon Management Commission hearings and public participation opportunities, visit the ECMC website.
For upcoming Public Utilities Commission hearings and public participation opportunities, visit the PUC’s website.
Colorado air quality regulation updates
The Air Pollution Control Division periodically proposes updates to existing air quality regulations to the Air Quality Control Commission. The commission reviews the proposals and determines whether to adopt any changes.
Many of these changes are minor or administrative. The division provides quick updates about these changes during public meetings. The commission’s website provides a calendar of upcoming meetings and more information on meeting topics.
The public can also learn more during the commission’s hearing requests and hearings. Visit the commission’s website and meeting calendar for more information.
To submit written public comments, email:
- cdphe.commentsapcd@state.co.us before a commission hearing request.
- cdphe.aqcc@state.co.us after a commission hearing request.
- Please include the Regulation Number “Public Comment” in the subject line.
Questions? Contact cdphe_apcd_outreach@state.co.us.
Upcoming proposed changes to existing Colorado air quality regulations include:
- Proposed updates include:
- Considering revisions to Regulation Number 7 to include the midstream segment emission reduction plan. This may also include revisions to Regulation Number 26 and Number 27.
- The division will also request that the Commission set a hearing to consider revisions to Regulation Number 25 and Number 26 to address recent U.S. Environmental Protection Agency actions on state implementation plan provisions.
- Hearing date: December 16-18, 2024
- Questions or public comments? Email cdphe.aqcc@state.co.us before the hearing date above.
- Proposed updates include:
- Considering revisions addressing emissions of ozone precursors.
- Hearing request date: November 20-22, 2024
- Questions or public comments? Email cdphe.commentsapcd@state.co.us before the commission hearing request date above.
- Hearing date: February 19-21, 2025
- Questions or public comments? Email cdphe.aqcc@state.co.us before the hearing date above.
- Proposed updates include:
- Considering revisions to Regulation Number 11 and Regulation Number 12 to update the vehicle inspection program.
- Hearing date: January 15-17, 2024
- Questions or public comments? Email cdphe.aqcc@state.co.us before the hearing date above.
- Proposed updates include:
- Consider establishing a new Regulation Number 30 to identify up to five priority air toxic contaminants, in response to HB 22-1244.
- Hearing date: January 15-17, 2024
- Questions or public comments? Email cdphe.aqcc@state.co.us before the hearing date above.
Thank you for your interest in submitting comments to the Air Pollution Control Division. To protect public health and improve Colorado’s air quality, the division may present rules, permits, guidance documents, and other updates to communities so they can share their feedback and ask questions.
Our team values and considers every comment we receive.
Explore our web page. These tips are for written comments but can also be helpful when planning oral comments for a public meeting.
Questions? Email us at cdphe.commentsapcd@state.co.us.