{"operation":"document","citation":"06-0172","title":"Texas Railroad Commission — Hazardous Materials Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2006-08-25","effective_on":null,"summary":"06-0172 response to Texas Railroad Commission concerning 173.315, 177.840.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-06-0172.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-06-0172.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-06-0172","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2006/060172.pdf","body":"<<<PAGE 1>>>\n\nU.S. Department\nof Transportation\n400 Seventh Street, S.W.\nWashington, D.C. 20590\nPipeline and\nHazardous Materials Safety\nAdministration\nAUG 2 5 2006\nTexas Railroad Commission\nMr. Jim Osterhaus\nRef. No. 06-0172\nP.O. Box 12967\nAustin, TX 78711-2967\nDear Mr. Osterhaus:\nThis is in response to your letter requesting clarification of the emergency discharge control\nrequirements under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) for\nyou ask whether these cargo tank motor vehicles may transport liquefied compressed gas if\nnon-metered cargo tank motor vehicles transporting liquefied compressed gas. Specifically,\nthey do not have an \"on-board\" passive shutdown capability. The question is posed based on\n§ 177.840(г), which you believe may except cargo tank motor vehicles from the shutdown\nrequirement if a facility-provided transfer hose will be used.\nand used to transport liquefied compressed gas to have an emergency discharge control\nThe HMR require all cargo tank motor vehicles manufactured on or after July 1, 2001,\ncapability as specified in § 173.315(n). For a cargo tank motor vehicle manufactured\nprior to July 1, 2001, and used to transport liquefied compressed gases, the required\nemergency discharge control equipment must be installed no later than the date of its first\nscheduled pressure test after July 1, 2001 (see § 180.405(m)). No cargo tank motor\nunless it is equipped with the appropriate emergency discharge control equipment (see\nvehicle used to transport liquefied compressed gas may be operated after July 1, 2006\n§ 173.315(n)(5)).\nA cargo tank motor vehicle equipped with a specially designed hose assembly o meet the\nemergency discharge control requirements in § 173.315(n) may be unloaded using a\ndelivery hose assembly provided by the receiving facility provided the conditions set\n173.315(n)\n060172\n177.840(г)\n\n<<<PAGE 2>>>\n\nforth in § 177.840(r) are met. Note, however, that even a cargo tank motor vehicle that is\nunloaded using a facility hose must be equipped with emergency discharge control\nequipment appropriate to the material transported and the type of service in which the\ncargo tank motor vehicle is engaged\nI hope this information is helpful. Please contact this office if you have additional\nquestions.\nSincerely\nHath I. Mishell\nHattie L. Mitchell\nChief, Regulatory Review and Reinvention\nOffice of Hazardous Materials Standards\n\n<<<PAGE 3>>>\n\nDrakeford, Carolyn <PHMSA>\nSent:\nFrom:\nINFOCNTR <PHMSA>\nSubject:\nTo:\nThursday, July 20, 2006 2:22 PM\nM'Jature\nFW: Information Center Comments/Questions\nDrakeford, Carolyn <PHMSA>\n827g: 3402\nHe called earlier and is requesting\na letter of interp. Thanks!\n06-0/12\nFrom: james.osterhaus@rrc.state.tx.us [mailto:james.osterhaus@rrc.state.tx.us]\n-----Original Message-\nTo: INFOCNTR < PHMSA>\nSent: Wednesday, July 19,\n2006 4:08 PM\nSubject: Information Center Comments/Questions\nBelow is the result of your feedback form.\n(james. osterhaus@rrc.state.tx.us)\non Wednesday, July 19, 2006 at 16:07:42.\nIt was submitted by Jim Osterhaus\nEmail: james.osterhaus@rrc.state.tx.us\nName: Jim Osterhaus\norganization: Texas Rallroad Commission P.O.BoX 12967\nCity: Austin\nState: Texas\nZip Code: 78711 - 2967\nPhone: 512-463-6692\nmetered cargo tank motor vehicles.\nComments: Rule Clarification:\n173.315 (n) (2) requires passive shutdown capability on non-\npassive shutdown capabilities shall not operate until it has the appropriate emergency\n173.315 (n) (5) (iii) states that a transport without\nHowever, 177.840 (r) permits a\nappears 49 CFR requires all non-metered transports to be equipped with a passive shutdown,\nspecially designed delivery hose assembly meeting the requirements of 173.315 (n) (2).\nIt\nbut\noperating in Texas that are loaded and unloaded in Texas, other states or in Mexico using\nit doesn't require the passive shutdown equipment to be used. There are LPG transports\nshutdown capabilities.\nfacility-provided transfer hoses. Many of these transports are not equipped with passive\nproduct) if not equipped with on-board passive shutdown capabilities?","truncated":false,"body_characters":4072}