# 255.203 Instrument, control and sampling piping and components. **Citation:** 16 NYCRR 255.203 **Type / status:** regulation / current **Agency:** New York State Public Service Commission **Effective:** Not stated **Published:** Not stated Transmission and Distribution of Gas. (a) This section applies to the design of instrument, control, and sampling piping and components. It does not apply to permanently closed systems, such as fluid-filled temperature-responsive devices. (b) All materials employed for pipe and components must be designed to meet the particular conditions of service and the following paragraphs: (1) Each takeo ## Document text (a) This section applies to the design of instrument, control, and sampling piping and components. It does not apply to permanently closed systems, such as fluid-filled temperature-responsive devices. (b) All materials employed for pipe and components must be designed to meet the particular conditions of service and the following paragraphs: (1) Each takeoff connection and attaching boss, fitting, or adapter must be made of material suitable to withstand the maximum service pressure and temperature of the pipe or equipment to which it is attached, and be designed to satisfactorily withstand all stresses without failure by fatigue. (2) Except for takeoff lines that can be isolated from sources of pressure by other valving, a shut-off valve must be installed in each takeoff line as near as practicable to the point of takeoff. Blow-down valves must be installed where necessary. (3) Brass or copper material may not be used for metal temperatures greater than 400°F (204°C). (4) Pipe or components that may contain liquids must be protected by heating or other means from damage due to freezing. (5) Pipe or components in which liquids may accumulate must have drains or drips. (6) Pipe or components subject to clogging from solids or deposits must have suitable connections for cleaning. (7) The arrangement of pipe, components, and supports must provide safety under anticipated operating stresses. (8) Each joint between sections of pipe, and between pipe and valves or fittings, must be made in a manner suitable for the anticipated pressure and temperature condition. Slip type expansion joints may not be used. Expansion must be allowed for by providing flexibility within the system itself. (9) Each control line must be protected from anticipated causes of damage and must be designed and installed to prevent damage to any one control line from making both the regulator and the over-pressure protective device inoperative. ## Provenance - Official: Yes - Source: - Source ID: `ny-dps-nycrr` - SHA-256: `b31d844d8288437bc3f5c90487a85d730012dfc40b575461fca62c4db7e3100f` - Retrieved: 2026-08-12T06:20:40.894Z - Exported: 2026-08-23T18:26:11.998Z - Document slug: `ny-nycrr-255-203` ### 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", "Overpressure Protection" ], "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 255.203", "identityAnomaly": null, "references": [], "region": "NY" } ```