{"operation":"document","citation":"PI-75-015","title":"Commonwealth of Kentucky — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1975-04-14","effective_on":null,"summary":"PI-75-015 response to Commonwealth of Kentucky concerning 192.625.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-75-015.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-75-015.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-75-015","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1975/PI75015.pdf","body":"<<<PAGE 1>>>\n\nApril 14, 1975\nMr. Roger Fletcher\nCommonwealth of Kentucky\nPublic Service Commission\nCapital Plaza Tower-24th Floor\nFrankfort, Kentucky 40601\nDear Mr. Fletcher:\nThank you for your recent letter addressed to Mr. Jim Abbee of this Office, asking:\nWould a utility company be considered to have complied with [49 CFR 192.625] if the\nnatural odor of the gas is detectable at the concentration of one-fifth of the lower\nexplosive limit?\nThe purpose of Section 192.625 is to ensure that a concentration of combustible gas in air equal\nto one fifth of the lower explosive limit of the mixture is detectable by the sense of smell. To\naccomplish this objective, paragraph (a) of Section 192.625 requires that combustible gases be\n\"odorized\" in accordance with that Section.\nIf, however, a combustible gas is itself a natural odorant and can be smelled at the requisite\nconcentration of gas in air, the requirement that the gas be odorized would not apply. At the\nsame time, the other requirements in paragraphs (c)-(f) of Section 192.625, applicable to the\nodorant in combustible gases, must be met.\nWe trust this satisfactorily answers your inquiry.\nSincerely,\nJoseph C. Caldwell\nDirector\nOffice of Pipeline Safety\ndal\\192\\625\\75-04-14\n1","truncated":false,"body_characters":1242}