{"operation":"document","citation":"PI-93-035","title":"West Virginia Public Service Commission — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1993-07-15","effective_on":null,"summary":"PI-93-035 response to West Virginia Public Service Commission concerning 192.457.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-93-035.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-93-035.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-93-035","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1993/PI93035.pdf","body":"<<<PAGE 1>>>\n\nJuly 15, 1993\nMr. Darrell A. McKown\nManager, Gas Pipeline Safety Transportation Division\nWest Virginia Public Service Commission\nP. O. Box 812\n201 Brooks Street\nCharleston, WV 25323\nDear Mr. McKown:\nThank you for your letter of May 10, 1993, requesting an interpretation of the gas pipeline\nstandards in 49 CFR part 192. You asked whether the logic of §192.457(b) applies to\ncorrosion under §§192.479(b), 192.481, and 192.483.\nSection 192.457(b) applies to certain buried or submerged pipelines installed before\nAugust 1, 1971. The standard requires operators to cathodically protect areas of\ncontinuing corrosion that unless controlled could become detrimental to public safety.\nUnder this standard, protecting against corrosion is discretionary, depending on the\ncircumstances relevant to public safety.\nIn contrast, §§192.479(b), 192.481, and 192.483 do not allow operators to exercise\ndiscretion in applying protection against corrosion. Operators must apply the prescribed\nprotective measures to all corrosion covered by these standards.\nSincerely,\nCesar De Leon\nDirector, Regulatory Programs\nOffice of Pipeline Safety\ndal\\192.457\\93-07-15","truncated":false,"body_characters":1158}