{"operation":"document","citation":"PI-76-070","title":"Missouri Public Service Commission — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1976-11-01","effective_on":null,"summary":"PI-76-070 response to Missouri Public Service Commission concerning 192.357.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-76-070.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-76-070.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-76-070","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1976/PI76070.pdf","body":"<<<PAGE 1>>>\n\nNovember 1, 1976\nMr. Leonard M. Coffelt\nMissouri Public Service Commission\nP.O. Box 360\nJefferson City, Missouri 65101\nDear Mr. Coffelt:\nThis responds to your letter dated September 21, 1976, asking that we review a previous\ninterpretation dated October 21, 1973, regarding 49 CFR 192.357(d). You ask whether that\ninterpretation permits \"service regulators to be installed within a building without venting the\ndiaphragm breather vent to the outside atmosphere.\"\nSection 192.357(d) reads:\n\"Each regulator that might release gas in its operation must be vented to the\noutside atmosphere.\"\nThe October 12, 1973, interpretation essentially provides that Section 192.357(d) does not apply\nto a regulator which does not release gas in its operation.\nThat interpretation was not intended to permit installation of a regulator with a diaphragm breathe\nvent inside a building without placing the discharge end of the vent outside the building. Sections\n192.199(e) and 192.355(b)(2) are clear that the outlet of each regulator vent must be located\noutside.\nSincerely,\nCesar DeLeon\nActing Director\nOffice of Pipeline\nSafety Operations\ndal\\192\\357\\76-11-01","truncated":false,"body_characters":1159}