# 255.355 Customer meters and regulators: protection from damage.

**Citation:** 16 NYCRR 255.355  
**Type / status:** regulation / current  
**Agency:** New York State Public Service Commission  
**Effective:** Not stated  
**Published:** Not stated

Transmission and Distribution of Gas. (a) If the customer's equipment or supplemental gas supply might create either a vacuum or a back pressure, a device must be installed to protect the distribution system. Commingling of a customer's supplemental gas supply with utility supplied gas is permissible provided the customer verifies that the supplemental gas is interchangeable with the gas supplie

## Document text

(a) If the customer's equipment or supplemental gas supply might create either a vacuum or a back pressure, a device must be installed to protect the distribution system. Commingling of a customer's supplemental gas supply with utility supplied gas is permissible provided the customer verifies that the supplemental gas is interchangeable with the gas supplied by the utility.

(b) The outside terminal of each service regulator vent and relief vent must:

(1) be rain and insect resistant;

(2) be located at a place where gas from the vent can escape freely into the atmosphere and away from any opening into the building (a minimum of 18 inches [457 millimeters], where practical); and

(3) be protected from damage caused by submergence in areas where flooding or ice accumulation may occur.

(c) Each pit or vault that houses a customer meter or regulator at a place where vehicular traffic is anticipated, must be able to support that traffic.

## Provenance

- Official: Yes
- Source: <https://govt.westlaw.com/nycrr/Document/I505ce51fcd1711dda432a117e6e0f345?viewType=FullText&originationContext=documenttoc&transitionType=CategoryPageItem&contextData=(sc.Default)>
- Source ID: `ny-dps-nycrr`
- SHA-256: `f5129176d99b7f5183f3edcc06a02f2f2498db9f9c17e5a4a8156d09095f2432`
- Retrieved: 2026-08-12T06:20:40.894Z
- Exported: 2026-08-22T18:26:31.809Z
- Document slug: `ny-nycrr-255-355`

### 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",
    "Customer Meters, Service Regulators, and Service Lines"
  ],
  "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 255.355",
  "identityAnomaly": null,
  "references": [],
  "region": "NY"
}
```