# 255.747 Valve maintenance: distribution systems.

**Citation:** 16 NYCRR 255.747  
**Type / status:** regulation / current  
**Agency:** New York State Public Service Commission  
**Effective:** Not stated  
**Published:** Not stated

Transmission and Distribution of Gas. (a) Each valve, the use of which may be necessary for the safe shutdown or sectionalization of a distribution system, must be inspected and partially operated at intervals not exceeding 15 months, but at least once each calendar year. Included are the principal shut-off valves at district regulator stations and pressure-limiting devices.

(b) Each operator m

## Document text

(a) Each valve, the use of which may be necessary for the safe shutdown or sectionalization of a distribution system, must be inspected and partially operated at intervals not exceeding 15 months, but at least once each calendar year. Included are the principal shut-off valves at district regulator stations and pressure-limiting devices.

(b) Each operator must take prompt remedial action to correct any valve found inoperable, unless the operator designates an alternative valve.

(c) The location of all valves in distribution systems that may be required during an emergency shall be designated on appropriate records, drawings or maps, in relation to aboveground structures, so that the valves and associated access covers can be readily located when the ground is covered with snow and ice. Since there may be changes or alterations in aboveground structures over a period of time, the accuracy of the reference points established shall be verified at the time of the periodic inspection.

(d) At the time of the periodic inspection, valves will be checked for external leakage.

## Provenance

- Official: Yes
- Source: <https://govt.westlaw.com/nycrr/Document/I505d8156cd1711dda432a117e6e0f345?viewType=FullText&originationContext=documenttoc&transitionType=CategoryPageItem&contextData=(sc.Default)>
- Source ID: `ny-dps-nycrr`
- SHA-256: `0e5929d1c4cc77559a1d46e2642c284cb0c5e68d6519f1ba421ed31c85d181a1`
- Retrieved: 2026-08-12T06:20:40.894Z
- Exported: 2026-08-22T07:46:04.363Z
- Document slug: `ny-nycrr-255-747`

### Source metadata

```json
{
  "jurisdiction": "US-NY",
  "title": 16,
  "part": "255",
  "partTitle": "Transmission and Distribution of Gas",
  "scopeKind": "gas-pipeline-safety",
  "tocPath": [
    "Part 255 Transmission and Distribution of Gas",
    "Maintenance"
  ],
  "legalScope": "Complete current terminal legal unit exposed by the DPS-designated Title 16 NYCRR pipeline-safety part inventory.",
  "applicabilityCaveat": "Applicability depends on the part and section, Commission jurisdiction, commodity and facility type, intrastate or interstate status, operator and activity, exemptions, waivers, federal preemption, Commission orders, and incorporated law. DPS inspects portions of interstate systems for PHMSA, but PHMSA retains federal enforcement authority. DPS states that all jurisdictional Part 256 gas-holder and Part 257 LPG-plant facilities have been decommissioned even though those regulations remain unrepealed.",
  "incorporationCaveat": "These parts incorporate or rely on federal pipeline regulations, federal and New York statutes, Commission rules and orders, and privately authored technical standards. Part 10 supplies incorporation details. References metadata preserves explicit citations but does not reproduce external material, determine licensing rights, or decide whether a particular incorporation is static or dynamic.",
  "publicationCaveat": "The New York Department of Public Service identifies these eleven Title 16 NYCRR parts as its state pipeline-safety regulations and links to the public DOS/Westlaw NYCRR reading copy. That site labels the online text unofficial and directs users needing evidentiary accuracy to the Official NYCRR maintained by the Department of State Division of Administrative Rules. Each section's 'Current through' date is the most recent official NYCRR supplement covering that section, not a uniform corpus-wide amendment date.",
  "rights": "New York government-edict text is preserved with DPS, Department of State, and publisher attribution. The public reading site's presentation and enhancements, agency marks, forms, annotations, and incorporated federal or privately authored standards require separate rights review; this connector does not claim rights in those materials.",
  "rightsReviewRequired": true,
  "currentThrough": "2024-05-31",
  "historyEvents": "No event is emitted because the section reading copy does not supply an explicit adoption, filing, or effective-date history.",
  "publisherCitation": "16 CRR-NY 255.747",
  "identityAnomaly": null,
  "references": [],
  "region": "NY"
}
```