{"operation":"document","citation":"PI-73-008","title":"Iowa Public Service Company — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1973-02-13","effective_on":null,"summary":"PI-73-008 response to Iowa Public Service Company concerning 192.621.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-73-008.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-73-008.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-73-008","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1973/PI73008.pdf","body":"<<<PAGE 1>>>\n\nFebruary 13, 1973\nMr. Thomas Mitchell\nIowa Public Service Company\nP.O. Box 778\nSioux City, Iowa 51101\nDear Mr. Mitchell:\nThis is in response to your telephone conversation with Mr. Cesar DeLeon of this office on\nJanuary 10, 1973, in which you ask us to verify by letter that §192.619(b) and §192.621(b) of\nTitle 49 of the Code of Federal Regulations provide for installation of overpressure protective\ndevices for gas systems that have a maximum operating pressure determined by the corrosion\nhistory of the pipe segment. You indicated in your telephone conversation with Mr. DeLeon that\nit appeared to you that these two sections were in conflict with §192.195 and §192.197 which do\nnot apply to installation of overpressure protective devices on systems built prior to March 12,\n1971, or systems which were replaced, relocated, or otherwise changed prior to November 12,\n1970, pursuant to §192.13, 49 CFR.\nThe requirements of §192.195 and §192.197 are contained in Subpart D of Part 192 which\nprescribes minimum requirements for the design and installation of pipeline components and\nfacilities. Sections 192.619 and 192.621, on the other hand, are operational requirements\ncontained in Subpart L. Section 192.603(a) makes clear that no person may operate a segment of\npipeline unless it is operated in accordance with the requirements of Subpart L. Subpart L sets\nforth the continuing requirements necessary to insure safe operation of a pipeline independent of\nthe initial design, installation and construction requirements that were applicable to that pipeline.\nSections 192.619(b) and 192.621(b) prescribe requirements for the operation of pipeline facilities\nregardless of when these pipelines were installed. Therefore, you must comply with the\nrequirements of both of these sections in the operation of your gas facilities.\nWe trust that this has answered your particular question. If we can be of further service regarding\nthis matter, please let us know.\nSincerely,\nJoseph C. Caldwell\nDirector\nOffice of Pipeline Safety\ndal\\192\\621\\73-02-13\n1","truncated":false,"body_characters":2067}