# 255.805 Leaks: general. **Citation:** 16 NYCRR 255.805 **Type / status:** regulation / current **Agency:** New York State Public Service Commission **Effective:** Not stated **Published:** Not stated Transmission and Distribution of Gas. (a) Any notification of a gas leak or gas odor, or any notification of damage to facilities by contractors or other outside sources shall constitute the need for prompt action. (b) Each operator shall be responsible for the leak investigation, classification, and repair of each leak found on its below-grade system and shall establish a means by which it det ## Document text (a) Any notification of a gas leak or gas odor, or any notification of damage to facilities by contractors or other outside sources shall constitute the need for prompt action. (b) Each operator shall be responsible for the leak investigation, classification, and repair of each leak found on its below-grade system and shall establish a means by which it determines the appropriate surveillance interval at leak locations under frost conditions. (c) Leaks found to be on exposed piping or facilities need not be classified; however, each operator shall establish procedures for immediate elimination of potential hazards resulting therefrom. (d) The purpose of the leak classification system is to determine the degree or extent of the potential hazard which results from gas leakage and to prescribe remedial actions therefor. (e) Classifications shall be made only by individuals who possess training, experience, and knowledge in the field of leak classification and investigation, including extensive association with actual leakage work. The judgment of the aforementioned individuals, based upon all pertinent information and a complete leakage investigation at the scene, will form the basis for the classification. (f) Percentages of gas-in-air included hereafter are based on natural gas. Where liquefied petroleum, manufactured or other gases are involved, appropriate adjustment shall be made as may be required, consistent with the lower explosive limit (LEL) of such gas or mixture of gases. (g) Prior to downgrading a leak without any repair, at least one additional surveillance at the normal interval is required to verify that a lower class of hazard exists. Except for leaks downgraded to type 3 classification, which do not require a time limit for repair, if a leak is reclassified to a lower hazard level, the original date of discovery determines the time period for repair. In no case shall the time limit for required repair of any leak exceed one year from the date of discovery. This requirement does not apply to leaks classified as type 2 or 2A based on consideration of frost conditions nor to leaks, at the time of discovery, classified at a higher level pending a further, more complete investigation of the leak hazard area. (h) When a leak is upgraded to a higher hazard level, the time period for repair is the remaining time based on its original classification or the time allowed for its new classification, whichever is less. This does not apply to leaks classified at a higher hazard level based on consideration of frost conditions nor to leaks, at the time of discovery, classified at a lower level pending a further, more complete investigation of the leak hazard area. ## Provenance - Official: Yes - Source: - Source ID: `ny-dps-nycrr` - SHA-256: `51ed4a9fb0607ee9deb57c002e2827ffb295905094b47bd9a49e505775336ce7` - Retrieved: 2026-08-12T06:20:40.894Z - Exported: 2026-08-25T16:29:18.735Z - Document slug: `ny-nycrr-255-805` ### 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", "Accidents and Leaks" ], "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 255.805", "identityAnomaly": null, "references": [], "region": "NY" } ```