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Air Pollution Control Division: Public participation opportunities

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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, information sessions, small community conversations, 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

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Updating the Air Quality Control Commission procedural rules.

Please join a public feedback session about updating and modernizing the rules dictating how the Air Quality Control Commission must run its meetings and rulemaking hearings. The division and commission are working to simplify the rulemaking process, make procedural rules easier to understand, and make the rulemaking process more accessible to community members. All are welcome to participate and share feedback. Please focus your comments on the commission’s procedural rules for the proposed project. The live meeting will be recorded. If you have questions or comments during the outreach process, please use this form to contact the commission office. 

The May 11 meeting will also provide an overview of updates proposed for existing air quality regulations. The meeting will quickly cover:

  • Regulation Number 3: Stationary Source Permitting and Air Pollutant Emission Notice Requirements.
    • Proposed updates include:
      • Directing fees collected under the disproportionately impacted community monitoring program to the stationary source fund.
      • Clarifying the disproportionately impacted community enhanced modeling and monitoring requirements.
      • Revising operating permit provisions in response to corresponding revisions at the federal level.
      • Other clarifying and correcting revisions.
  • Regulation Number 6: Standards of Performance for New Stationary Sources.
    • Proposed updates include:
      • Incorporating by reference New Source Performance Standards to align with U.S. Environmental Protection Agency requirements.
  • Regulation Number 8: Control of Hazardous Air Pollutants.
    • Proposed updates include:
      • Incorporating by reference National Emission Standards for Hazardous Air Pollutants and Maximum Achievable Control Technology to align with U.S. Environmental Protection Agency requirements.
  • Regulation Number 22: 
    • For Part C, Recovered Methane, proposed updates include:
      • Updating references to the “American Carbon Registry” to “ACR” throughout the rule.
      • Updating the ACR municipal solid waste landfill methane protocol and coal mine methane protocol to reflect ACR’s recent updates.
      • Removing references to Part B, Section II, which was moved to Regulation 27.
      • Other minor changes.

Disproportionately impacted community permitting public information session.

The Air Pollution Control Division has convened a panel of experts to help develop new requirements for monitoring air pollution emissions in disproportionately impacted communities. Please join us for a public meeting on the panel’s draft air monitoring guidance document. The division and panel welcomes and encourages community input and questions. All Coloradoans are welcome to participate. 

Air toxics reporting public meeting.

In 2022, Colorado adopted the Public Protections from Toxic Air Contaminants Act. This law requires certain Colorado air pollution sources to report their annual facility-wide air toxics air contaminant emissions. Please join us to discuss current air toxics, air contaminant reporting and potential gaps. All Coloradoans are welcome to participate and share feedback to inform potential revisions to the requirements.

Priority air toxics and health-based standards

Please join a public feedback session about the selection of priority air toxics and health-based standards and associated regulatory requirements. This work stems from a 2022 state law: Public Protections from Toxic Air Contaminants (House Bill 22-1244). All are welcome to participate and share feedback. Please focus your comments on the priority air toxics and health based standards. The live meeting will be recorded.

Priority air toxics and health-based standards

Please join a public feedback session about the selection of priority air toxics and health-based standards and associated regulatory requirements. This work stems from a 2022 state law: Public Protections from Toxic Air Contaminants (House Bill 22-1244). All are welcome to participate and share feedback. Please focus your comments on the priority air toxics and health based standards. The live meeting will be recorded.

View the Air Pollution Control Division's past public participation and outreach opportunities. These serve as a historic archive. These processes are completed.

Ongoing technical expert online meetings

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Between November 2023 and May 2024, the division is hosting a monthly technical subject matter expert panel. The panel is focused on developing air monitoring guidance for pollution sources. This work will help advance the Disproportionately Impacted Community Permitting Rule adopted in May 2023. These monthly technical meetings are open to the public. The meetings include an opportunity for public comment. The meetings stream live online.

For more information about meeting dates and how to register, visit the panel's webpage.

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.

Between February and May 2024, the division is hosting a technical working group. The working group is focused on providing recommendations for greenhouse gas credit trading system guidance. The guidance will apply to Greenhouse Gas Emissions and Energy Management for Manufacturing (GEMM) facilities in Colorado. 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 GEMM 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

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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

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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

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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

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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 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:

Questions? Contact cdphe_apcd_outreach@state.co.us.

 

Upcoming proposed changes to existing Colorado air quality regulations include:

  • Proposed updates include:
    • Updating and modernizing the rules dictating how the Air Quality Control Commission must run its meetings and rulemaking hearings. 
    • Simplifying the rulemaking process, making procedural rules easier to understand, and making the rulemaking process more accessible to community members. 
  • Hearing request date: August 14-16, 2024
  • Hearing date: November 20-22, 2024

  • Proposed updates include:
    • Directing fees collected under the disproportionately impacted community monitoring program to the stationary source fund.
    • Clarifying the disproportionately impacted community enhanced modeling and monitoring requirements.
    • Revising operating permit provisions in response to corresponding revisions at the federal level.
    • Other clarifying and correcting revisions.
  • Hearing request date: February 15, 2024
  • Hearing date: May 15-17, 2024

  • Proposed updates include:
    • Incorporating by reference NSPS to align with U.S. Environmental Protection Agency requirements.
  • Hearing request date: February 15, 2024
  • Hearing date: May 15-17, 2024

  • Proposed updates include:
    • Incorporating by reference MACT to align with U.S. Environmental Protection Agency requirements.
  • Hearing request date: February 15, 2024
  • Hearing date: May 15-17, 2024

  • For Part C, Recovered Methane, proposed updates include:
    • Updating references to the “American Carbon Registry” to “ACR” throughout the rule.
    • Updating the ACR municipal solid waste landfill methane protocol and coal mine methane protocol to reflect ACR’s recent updates.
    • Removing references to Part B, Section II, which was moved to Regulation 27.
    • Other minor changes.
  • Hearing request date: February 15, 2024
  • Hearing date: July 18-19, 2024

10 tips for making effective public comments

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