{"operation":"document","citation":"PI-98-008","title":"Sierra Pacific Power Company — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1998-11-10","effective_on":null,"summary":"PI-98-008 response to Sierra Pacific Power Company concerning 192.195.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-98-008.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-98-008.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-98-008","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1998/PI98008.pdf","body":"<<<PAGE 1>>>\n\n11/10/98\nMr. Michael G. Rodriguez\nSupervisor, Gas System Control\nSierra Pacific Power Company\nPO Box 10100\nReno, NV 89520-0024\nDear Mr. Rodriguez:\nI am responding to your letter of September 28, 1998, to Tom Lael concerning the requirements\nof 49 CFR 192.195 for overpressure protection at city gate stations. Specifically, you asked if an\nLDC that receives gas at four regulating stations operated by a transmission company is required\nto provide overpressure protection at each station in addition to the station’ s working and\nmonitor regulators. Each station reduces the pressure of gas delivered to the LDC from 540 psig\nto 90 psig, the maximum allowable operating pressure (MAOP) of the distribution system.\nEach distribution system to which §192.195 applies that is connected to a gas source that has\nhigher pressure than the MAOP of the system must have certain overpressure protection devices.\nIf an LDC seeks to satisfy this requirement by relying on overpressure protection devices\noperated by its gas supplier, the LDC is still responsible for compliance with §192.195. In your\nsituation, if the devices at each of the transmission company’ s regulating stations comply with\n§192.195 requirements, then no other protective devices are necessary.\nIf we can be of further assistance, please call me at (202)366-4565.\nSincerely,\nRichard D. Huriaux, P.E.\nRegulations Manager\nOffice of Pipeline Safety\nLMFurrow:jmd:64046:10-21-98\ncc: DPS-1,20,Regions,TSI,StateMailing","truncated":false,"body_characters":1488}