# 255.179 Valves on pipelines to operate at 125 psig (862 kPa) or more. **Citation:** 16 NYCRR 255.179 **Type / status:** regulation / current **Agency:** New York State Public Service Commission **Effective:** Not stated **Published:** Not stated Transmission and Distribution of Gas. (a) Each pipeline to operate at 125 psig (862 kPa) or more must have sectionalizing block valves spaced according to the following: (1) Each point on the pipeline in a Class 4 location must be within ½ mile (0.805 kilometer) of a valve. (2) Each point on the pipeline in a Class 3 location must be within two miles (3.22 kilometers) of a valve. (3) Each poi ## Document text (a) Each pipeline to operate at 125 psig (862 kPa) or more must have sectionalizing block valves spaced according to the following: (1) Each point on the pipeline in a Class 4 location must be within ½ mile (0.805 kilometer) of a valve. (2) Each point on the pipeline in a Class 3 location must be within two miles (3.22 kilometers) of a valve. (3) Each point on the pipeline in a Class 2 location must be within 3½ miles (5.63 kilometers) of a valve. (4) Each point on the pipeline in a Class 1 location must be within five miles (8.05 kilometers) of a valve. (b) Each sectionalizing block valve and operating device on a pipeline to operate at 125 psig (86.2 kPa) or more must: (1) be readily accessible and protected from tampering and damage; and (2) be supported to prevent settling of the valve or movement of the pipe to which it is attached. (c) Each section of a pipeline to operate at 125 psig (862 kPa) or more must have a blow-down valve with enough capacity to allow the line to be blown down as rapidly as practicable or other approved means to reduce the pressure. (d) Each blow-down discharge must be located so the gas can be blown to the atmosphere without hazard and, if the line is adjacent to an overhead electric line, so that the gas is directed away from the electrical conductors. ## Provenance - Official: Yes - Source: - Source ID: `ny-dps-nycrr` - SHA-256: `2f1af217d8207d377f5a946f5d3193fedc36271523702420d6103371456c0d10` - Retrieved: 2026-08-12T06:20:40.894Z - Exported: 2026-08-23T22:34:15.621Z - Document slug: `ny-nycrr-255-179` ### 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", "Design of Pipeline Components" ], "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 255.179", "identityAnomaly": null, "references": [], "region": "NY" } ```