4 Colo. Code Regs. § 723-3-3859
No later than 90 calendar days after the effective date of these rules, each utility subject to these rules, except a cooperative electric association that has voted to exempt itself from regulation pursuant to C.R.S. § 40-9.5-103, shall file its Interconnection Manual with the Commission in a miscellaneous proceeding opened by the Commission for that purpose. This filing enables the Commission to ensure the terms and conditions contained in the Interconnection Manual are just, reasonable, and not unduly discriminatory. This information should include an electronic link to the utility's filing, along with the date on which it was last updated. The utility shall update this information within 30 days after any material changes have been made to its manual. Utilities shall establish an internal process of acquiring timely feedback from stakeholders regarding the material changes provided within the Notice. Each time the utility updates the Interconnection Manual, the utility shall make available a redline highlighting the changes.
Each utility, including cooperative electric associations, shall also provide, on its web site, interconnection standards or other technical guidance not included in, but that are consistent with, these procedures.
4 CCR 723-3-3859