# Filing Form and Schedule

**Citation:** 4 CCR 723-4 Rule 4729  
**Type / status:** regulation / current  
**Agency:** Colorado Public Utilities Commission  
**Effective:** Not stated  
**Published:** Not stated

(a) The utility's clean heat plan shall be filed as an application administered pursuant to the Commission's Rules of Practice and Procedure, 4 CCR 723-1, as well as rules 4002 and 4731 of these rules. The Commission may hold a hearing for the purpose of reviewing, and rendering a decision regarding

## Document text

(a) The utility’s clean heat plan shall be filed as an application administered pursuant
to the Commission’s Rules of Practice and Procedure, 4 CCR 723-1, as well as
rules 4002 and 4731 of these rules. The Commission may hold a hearing for the
purpose of reviewing, and rendering a decision regarding, the contents of the
utility’s clean heat plan.
(b) The utility’s clean heat plan application shall:
(I) present a plan to implement clean heat resources throughout the clean
heat plan action period;
(II) demonstrate that the clean heat plan will result in greenhouse gas
emissions reductions necessary to meet the applicable clean heat targets
that occur during the clean heat plan action period or show compliance
with the cost cap; and
(III) demonstrate that the activities contemplated in the clean heat plan
facilitates the utility’s ability to meet future greenhouse gas emission
reduction targets.

(c) No later than August 1, 2023, the largest gas distribution utility in Colorado, as
determined by the volume of gas sold in Colorado, shall file its first application for
approval of a clean heat plan.
(d) No later than January 1, 2024, all gas distribution utilities other than the largest
gas distribution utility in Colorado, as determined by the volume of gas sold in
Colorado shall file their first applications for approval of a clean heat plan.
(e) All gas distribution utilities shall file subsequent clean heat plans not less often
than every four years, unless otherwise directed by the Commission.
(f) After a utility’s clean heat plan is filed and prior to any evidentiary hearing, the
Commission shall schedule a public hearing that specifically solicits, among other
applicable topics, public comment on the labor impacts and benefits of the
proposed clean heat plan.

## Provenance

- Official: Yes
- Source: <https://www.sos.state.co.us/CCR/DisplayRule.do?action=ruleinfo&ruleId=2260&deptID=18&agencyID=96&deptName=Department%20of%20Regulatory%20Agencies&agencyName=Public%20Utilities%20Commission&seriesNum=4%20CCR%20723-4>
- Source ID: `co-sos-ccr`
- SHA-256: `281fa2302a3c6390dbd396a15fee0b734a6b967a770ab45ee074ccffae07ba30`
- Retrieved: 2026-08-12T04:36:48.096Z
- Exported: 2026-08-24T15:40:45.755Z
- Document slug: `co-ccr-4-723-4-4729`

### Source metadata

```json
{
  "jurisdiction": "US-CO",
  "code": "4 CCR 723-4",
  "ruleKey": "4729",
  "pipelineScope": "colorado-jurisdictional-gas-utilities",
  "legalScope": "Current 4 CCR 723-4 rules regulating Colorado jurisdictional gas utilities and gas master-meter operators, including construction, operation, system safety, gas infrastructure planning, metering, service, and enforcement provisions. This is an adjacent gas-utility corpus, not a replacement for the repealed dedicated 4900-series pipeline-safety rules.",
  "applicabilityCaveat": "Part 4 applies according to Colorado Public Utilities Commission jurisdiction and each rule's scope. The former dedicated pipeline-safety rules 4900 through 4975 are reserved after repeal; this connector does not represent them as current. Part 4 does not replace federal pipeline-safety requirements, determine whether a facility is interstate or intrastate, or resolve operator-specific orders, waivers, tariffs, or later rulemaking.",
  "references": [],
  "ruleInfoUrl": "https://www.sos.state.co.us/CCR/DisplayRule.do?action=ruleinfo&ruleId=2260&deptID=18&agencyID=96&deptName=Department%20of%20Regulatory%20Agencies&agencyName=Public%20Utilities%20Commission&seriesNum=4%20CCR%20723-4",
  "pucRulesUrl": "https://puc.colorado.gov/gasrulesandregulations",
  "ruleVersionId": "12549",
  "editionEffectiveOn": "2026-06-14",
  "publicationStatus": "The Colorado Secretary of State identifies the source as the official publication of state administrative rules. The edition date applies to the compiled rule version and is not represented as the effective date of every provision.",
  "rights": "Official state rule text is preserved with attribution and source links. Public accessibility does not imply rights in agency marks, third-party material, or incorporated standards; commercial redistribution requires review.",
  "region": "CO"
}
```