AQCC public participation and hearing guidance

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Public participation and hearing guidance
The Guidebooks have been prepared to provide members of the public and other interested parties information on the hearing processes, known as “rulemaking”, "adjudication", and "informational or public". Following are our guidance documents. Templates referenced are available upon request through the commission office.

Guidebook: Adjudicatory Hearing
Guidebook: Informational Hearing
Guidebook: Rulemaking Hearing

Public Participation Workshop. The workshop provides members of the public with information on how to most effectively participate in commission rulemaking proceedings. The video and presentation linked below were provided in the context of a specific hearing, but the general principles apply for all rulemaking hearings.

Workshop Video  
Workshop Presentation  

If you wish to participate in the commission’s hearing processes, you are responsible for reviewing relevant statutes and rules that apply to the hearing process to make sure you understand your rights and responsibilities. More details about these processes may be found in the Commission’s Procedural Rules, 5 CCR 1001-1, the Air Pollution Prevention and Control Act (APPCA), C.R.S. §25-7-101, et seq., and the Colorado Administrative Procedures Act (APA), C.R.S. §24-4-103.

Accepting Written Comments Only for Requests for Rulemaking Hearings 

The commission is deviating from its previous practices regarding public comment for Requests for Rulemaking Hearings. Please see this memo for details concerning this decision.

Public Comments and Party Status 

The following memorandum serves to provide clarification to parties to the commission rulemaking proceedings and all stakeholders who can or cannot provide public comments regarding a rulemaking with respect to party affiliation. Please see this memo for details.

Memorandum regarding improvements to the public comment process.


Please email cdphe.aqcc-comments@state.co.us regarding any questions you may have, if you would like to provide public comment or written testimony, or would like to be added to the Commission email list to receive monthly agendas and notices of hearings. Please note photos are not accepted and will be redacted.