# Definitions

**Citation:** 4 CCR 723-4 Rule 4727  
**Type / status:** regulation / current  
**Agency:** Colorado Public Utilities Commission  
**Effective:** Not stated  
**Published:** Not stated

(a) "Clean heat plan total period" means the period from the date the clean heat plan application is filed through year 2050, or 20 calendar years, whichever is greater. (b) "Clean heat plan action period" means the period beginning the date the plan is filed and extending until December 31st of the

## Document text

(a) “Clean heat plan total period” means the period from the date the clean heat plan
application is filed through year 2050, or 20 calendar years, whichever is greater.
(b) “Clean heat plan action period” means the period beginning the date the plan is
filed and extending until December 31st of the fifth year from the filing date.
(c) “Clean heat plan informational period” means the period from the end of the
clean heat plan action period through the end of the clean heat plan total period.
(d) “Gas distribution utility” means a public utility providing gas service to more than
ninety thousand retail customers. “Gas distribution utility” does not include a
municipal gas distribution utility.
(e) “Green hydrogen” means hydrogen derived from water and a clean energy
resource as defined in § 40-2-125.5(2)(b), C.R.S.

(f) “Recovered methane credit” means a tradable instrument that represents a
greenhouse gas emission reduction or greenhouse gas removal enhancement of
one metric ton of carbon dioxide equivalent. The greenhouse gas emission
reduction or greenhouse gas removal enhancement must be real, additional,
quantifiable, permanent, verifiable, and enforceable. No recovered methane
credit may be issued if the greenhouse gas emission reduction or greenhouse
gas removal enhancement that the credit would represent is required or
accounted for by a proposed or final federal, state, or local rule or regulation.
(g) “Recovered methane protocol” means a set of procedures and requirements
established by the Air Quality Control Commission to quantify ongoing
greenhouse gas emission reductions or greenhouse gas removal enhancements
achieved by a recovered methane project and to calculate and track the project
outcomes.
(h) “Small gas distribution utility” means a public utility providing gas service to
ninety thousand retail customers or fewer. “Small gas distribution utility” does not
include a municipal gas distribution utility.

## 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: `0fde95d3cf3235c918604774f6ebf4b5b73192480b2cd97c77102c4bea725fa8`
- Retrieved: 2026-08-12T04:36:48.096Z
- Exported: 2026-08-26T22:23:24.784Z
- Document slug: `co-ccr-4-723-4-4727`

### Source metadata

```json
{
  "jurisdiction": "US-CO",
  "code": "4 CCR 723-4",
  "ruleKey": "4727",
  "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"
}
```