{"operation":"document","citation":"PI-71-0108","title":"Houston Natural Gas Corporation — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1971-05-25","effective_on":null,"summary":"PI-71-0108 response to Houston Natural Gas Corporation concerning 192.363.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-71-0108.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-71-0108.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-71-0108","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1971/g71-05-25_Smith_192.363-nlmx.pdf","body":"<<<PAGE 1>>>\n\nPI-71-0108\nOffice of the Secretary of Transportation\nWashington, D.C. 20590\nMay 25, 1971\nMr. Raymond R. Smith, P.E.\nChief Engineer\nHouston Natural Gas Corporation\n1200 Travis, Box 1188\nHouston, Texas 77001\nDear Mr. Smith:\nThis is in reply to your letter of March 10, 1971, concerning the requirements of 49 CFR, Section 192.363(c) for tamper-\nproof service line valves.\nWe interpret this section to also permit the use of a locking device on the valve, or a locked enclosure such as a fence or\nbuilding around the valve, as a means of meeting the requirement \"to minimize the possibility of removal of the core of\nthe valve with other than specialized tools\".\nTherefore, in order to comply with the regulations you must use the above described or similar methods of protection.\nSincerely,\nJoseph C. Caldwell\nActing Director\nOffice of Pipeline Safety\n\n<<<PAGE 2>>>\n\nHouston Natural Gas Corporation\nHouston Natural Gas Building\n1200 Travis\nBox 1188\nHouston, Texas 77001\nMarch 10, 1971\nMr. Joseph C. Caldwell\nActing Director\nOffice of Pipeline Safety\nDepartment of Transportation\n400 6th Street, S.W.\nWashington, D.C. 20590\nReference: OPS - Minimum Standards - August 12, 1970\n§ 192.363 (c)\nService Lines: Valve Requirements\nDear Mr. Caldwell:\nUnder above referenced regulations all service line valves installed after March 12, 1971 are to be of tamper-proof\nclassification. To date, Houston Natural Gas Corporation has been able to acquire tamper-proof service valves in all\nrequired sizes except 3/4\". Suppliers have notified us that the 3/4\" tamper-proof valves will not be available for at least\n4-to-6 weeks. Therefore, until we are able to acquire a supply of 3/4\" tamper-proof service line valves we will continue\nto use our present stock of-3/47 valves.\nEvery effort will be made to acquire the tamper-proof valves at the earliest date.\nYours very truly,\nHouston Natural Gas Corp.\nRaymond R. Smith, P.E.\nChief Engineer","truncated":false,"body_characters":1938}