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Regulatory Development

The Regulatory and Compliance Support Unit provides information about upcoming state regulatory issues for each stationary source regulation, including listings of current stationary source program regulatory actions, and information on workgroups and subcommittees formed to assist the Air Pollution Control Division in developing new rules and revising existing rules. The Air Pollution Control Division wants to improve its rules to meet Colorado's clean air goals. It is interested in rule suggestions that:

  • produce beneficial environmental outcomes,
  • make compliance with rule requirements easier,
  • clarify confusing rule language,
  • correct errors,
  • eliminate or revise outdated rules.


The Colorado Air Quality Control Commission's Regulations are found in the Colorado Code of Regulations, 5 CCR 1001 through 1023. We ask that you consider the following before requesting a change to a rule:

  • Can the problem be addressed outside of a rulemaking?
  • What is the authority of the Air Quality Control Commission to address your concern? Are there other governmental rules at the state or federal level that impact your concerns? Is your concern more properly addressed by another governmental body (for example, is local zoning a more appropriate route to address your concern)?


Our goal is to respond to your suggestion within two to four weeks. We may ask you to clarify your suggestions. Not all suggestions will result in a rule change, but all will be considered. We hope this process will promote a continuing dialogue on rules and a cooperative approach to improve them.


Rulemaking is a process that is designed by statute and is required to have many steps to ensure public participation and reasoned deliberation by the Air Quality Control Commission. Once a rule development process is initiated, it can take anywhere from six months to more than a year to complete, depending on the complexity. Patience is required. For additional assistance, please refer to:



Information on Current Regulatory Development Actions  


2013 rulemaking effort concerning permitting thresholds and oil and gas controls


Revisions to Regulation No. 3 concerning emissions reporting (APEN) requirements for internal combustion engines