ALERT (as of 12/16/2025): Due to inclement weather, Xcel Energy may shut off power across the front range as a safety precaution. In the event that these outages affect the ECMC's ability to conduct or maintain quorum for the 12/17/2025 Hearing, the hearing will adjourn and all pending matters will be continued to 1/7/2026. Check our hearings calendar for the most up-to-date information. 

 
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Rulemaking

ECMC affirms its operational practices by rulemakings. Rulemakings are grounded in the ECMC mission and are focused on specific subject areas. Often rulemakings are driven by statute.

 

For guidance on the rulemaking process and how to submit documents for a rulemaking proceeding, please click here. 

When & how does rulemaking occur? 

ECMC does not have the authority to unilaterally change state statutes or rules. To change ECMC rules, our agency must undertake a rulemaking process, which is open to all stakeholders (regulated entities, local governments, community members, and more). 

 

ECMC typically enters into the rulemaking process at the direction of the legislature in the form of state statutes, so one route of requesting changes to Rules is to contact legislators directly. Additionally, any person may request a rulemaking hearing, as described in ECMC Rule 529.b, Applications for Rulemaking. Pursuant to Rule 529.b, any person may petition the Commission to initiate rulemaking. All applications for rulemaking will contain the following information: (1)The name, address, and telephone number of the person requesting the rulemaking; (2) A copy of the rule proposed in the application and a general statement of the reasons for the requested rule; (3) The Commission’s statutory authority to enact the proposed rule; and (4) A proposed statement of the basis and purpose for this rule.

 

Accommodation Statement: The State of Colorado is committed to providing equitable access to our services. For personalized accessibility assistance, please contact us by email at DNR_ECMC@state.co.us or by phone at 303-894-2100. We will contact you directly within three business days. Visit our accessibility webpage for more information and services, including AIRA, our free service for blind and low-vision users.

 

Current rulemakings

  • None.

Upcoming rulemakings

  • None.

Past rulemakings