# Applicability

**Citation:** 4 CCR 723-4 Rule 4400  
**Type / status:** regulation / current  
**Agency:** Colorado Public Utilities Commission  
**Effective:** Not stated  
**Published:** Not stated

Rules 4400 through 4412 apply to residential customers, small commercial customers and agricultural customers served pursuant to a LDC's rates or tariffs. Rules 4400 through 4405 and rules 4407 through 4412 shall not apply to customers served under a LDC's transportation rates or tariffs. In its tar

## Document text

Rules 4400 through 4412 apply to residential customers, small commercial customers
and agricultural customers served pursuant to a LDC’s rates or tariffs. Rules 4400

through 4405 and rules 4407 through 4412 shall not apply to customers served under a
LDC’s transportation rates or tariffs. In its tariffs, a LDC shall define “residential,” “small
commercial” and “agricultural” customers to which these rules apply. The LDC may
elect to apply the same or different terms and conditions of service to other customers.

## 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: `d45a1040baf111f89c3918d2ea48a32b1c05bd7a62b4227127352f19d488153d`
- Retrieved: 2026-08-12T04:36:48.096Z
- Exported: 2026-08-27T00:30:03.956Z
- Document slug: `co-ccr-4-723-4-4400`

### Source metadata

```json
{
  "jurisdiction": "US-CO",
  "code": "4 CCR 723-4",
  "ruleKey": "4400",
  "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 This is an adjacent gas-utility corpus, not a replacement for the repealed dedicated 4900-series pipeline-safety rules.",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"
}
```