# 255.5 Class locations.

**Citation:** 16 NYCRR 255.5  
**Type / status:** regulation / current  
**Agency:** New York State Public Service Commission  
**Effective:** Not stated  
**Published:** Not stated

Transmission and Distribution of Gas. (a) Except as provided in paragraphs (d)(2) and (e)(2) of this section, the class location is determined by the number of buildings intended for human occupancy in the class location unit. The class location unit is an area that extends 220 yards (201.17 meters) on either side of the centerline of any continuous one-mile (1.61 kilometers) length of pipeline.

## Document text

(a) Except as provided in paragraphs (d)(2) and (e)(2) of this section, the class location is determined by the number of buildings intended for human occupancy in the class location unit. The class location unit is an area that extends 220 yards (201.17 meters) on either side of the centerline of any continuous one-mile (1.61 kilometers) length of pipeline. For the purposes of this section, each separate dwelling unit in a multiple dwelling building is counted as a separate building intended for human occupancy.

(b) A Class 1 location is any class location unit that has 10 or fewer buildings intended for human occupancy.

(c) A Class 2 location is any class location unit that has more than 10 but fewer than 46 buildings intended for human occupancy.

(d) A Class 3 location is:

(1) any class location unit that has 46 or more buildings intended for human occupancy; or

(2) any area where the pipeline lies within 100 yards (91.44 meters) of either a building or a small, well defined outside area that is occupied by 20 or more persons during normal use (such as a playground, recreation area, outdoor theater, or other place of public assembly).

(e) A Class 4 location is:

(1) any class location unit that has 100 or more buildings intended for human occupancy and where wall to wall pavement is prevalent; or

(2) any class location unit where buildings with four or more stories aboveground are prevalent.

(f) The boundaries of the class location unit determined in accordance with subdivisions (a) through (e) of this section may be extended according to the following.

(1) When a cluster of buildings intended for human occupancy otherwise requires a Class 2, 3 or 4 location, the class location unit ends 220 yards (201.17 meters) from the nearest building in the cluster.

(2) When the number of buildings with four or more stories requires a Class 4 location, the class location unit ends 220 yards (201.17 meters) from the nearest building with four or more stories.

## Provenance

- Official: Yes
- Source: <https://govt.westlaw.com/nycrr/Document/I505bfaa4cd1711dda432a117e6e0f345?viewType=FullText&originationContext=documenttoc&transitionType=CategoryPageItem&contextData=(sc.Default)>
- Source ID: `ny-dps-nycrr`
- SHA-256: `fec8b40bd0d7caa437c99eb33ddc62893478e1210da7ce67326d3c327bb1a749`
- Retrieved: 2026-08-12T06:20:40.894Z
- Exported: 2026-08-24T02:26:38.515Z
- Document slug: `ny-nycrr-255-5`

### 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",
    "General"
  ],
  "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 255.5",
  "identityAnomaly": null,
  "references": [],
  "region": "NY"
}
```