{"operation":"document","citation":"PI-75-006","title":"Tennessee Public Service Commission — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1975-01-29","effective_on":null,"summary":"PI-75-006 response to Tennessee Public Service Commission concerning 192.611.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-75-006.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-75-006.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-75-006","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1975/PI75006.pdf","body":"<<<PAGE 1>>>\n\nMr. John Searcy\nTennessee Public Service Commission\nEngineering Division\nCordell Hull Building\nNashville, TN 37219\nDear Mr. Searcy:\nYour letter of January 6, 1975, asks whether 49 CFR 192.611 applies to pipelines operating at\nany pressure. Although this rule applies to pipelines operating at any pressure, it is only relevant\nto a pipeline operating at a pressure which produces a hoop stress of more than 40 percent of the\npipeline's specified minimum yield strength.\nSincerely,\n/signed/\nJoseph C. Caldwell\nDirector\nOffice of Pipeline Safety\nDB\nC:\\WP51\\INTERPRT\\192\\611\\75-01-29\n1\n\n<<<PAGE 2>>>\n\nJanuary 6, 1975\nMr. Joseph C. Caldwell, Director\nOffice of Pipeline Safety\nDepartment of Transportation\n2100 Second Street, SW\nWashington, D. C. 20590\nDear Mr. Caldwell:\nIs 192.611 applicable to pipelines operating at any pressure?\nSincerely,\nJohn Searcy\nEngineering Division\nDB\nC:\\WP51\\INTERPRT\\192\\611\\75-01-29\n2","truncated":false,"body_characters":926}