{"operation":"document","citation":"03-0284","title":"Oklahoma Liquefied Petroleum Gas Administration — Hazardous Materials Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2004-10-20","effective_on":null,"summary":"03-0284 response to Oklahoma Liquefied Petroleum Gas Administration concerning 171.8, 173.315.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-03-0284.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-03-0284.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-03-0284","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2003/030284.pdf","body":"<<<PAGE 1>>>\n\nU.S. Department\nof Transportation\n400 Seventh St., S.W.\nWashington, D.C. 20590\nResearch and\nOCT 20 2004\nspecial Programs\nAdministration\nMr. W.A. Glass\nRef. No.: 03-0284\nAdministrator\nOklahoma Liquefied Petroleum Gas Administration\nSuiteB-45\n2101 North Lincoln Boulevard\nOklahoma City, OK 73105\nDear Mr. Glass:\nThis is in response to your November 6, 2003 letter requesting clarification regarding\nbobtails and the applicability of the term \"cargo tank motor vehicle\" as specified in the\nHazardous Materials Regulations (HMR; 49 CFR Parts 171-180). A \"bobtail,\" as specified\nin the context of this letter, is a cargo tank that is not mounted to a trailer. Specifically, you\nask if the definition for the term \"cargo tank motor vehicle,\" as referenced in § 173.315(n), is\nonly applicable to bobtails. Please accept my apology for our delay in responding to your\nletter.\nThe answer is no. The term \"cargo tank motor vehicle,\" applies to all configurations of cargo\ntank motor vehicles. See enclosure. Section 171.8 defines \"cargo tank motor vehicle\" as a\nmotor vehicle with one or more cargo tanks permanently attached to or forming an integral\npart of the motor vehicle. A \"motor vehicle\" as a defined in § 171.8, includes a vehicle,\nmachine, tractor, trailer, or semitrailer, or any combination thereof, propelled or drawn by\nmechanical power and used on highways to transport passengers or property. Therefore, a\ncargo tank that is attached to a motor vehicle chassis, including a trailer or semitrailer, is\nconsidered a \"cargo tank motor vehicle.\"\nI hope this information is helpful. Please contact us if you require additional assistance.\nSincerely,,\nHitter. mithel\nHattie L. Mitchell\nChief, Regulatory Review and Reinvention\nOffice of Hazardous Materials Standards\nEnclosure\n171.8\n030284\n173.315 (n)\n\n<<<PAGE 2>>>\n\nCargo Tank Motor Vehicles\nMC-331 High Pressure Tank (semitrailer)\nBOBTAIL TANK (no trailer)\nDOT 406/MC 306 Non Pressure Liquid Tank (trailer)\n030284B\n\n<<<PAGE 3>>>\n\nNov-06-03 12:13P LP GAS ADMIN\n4055216037\nP.02\nEdmonson\n5111.8\nNovember 6, 2003.\n§ 113.3151)\nMr. Edward Mazzullo\nCargo Tanks Definition.\nDirector, Office of Hazardous Material Standard\nUSDOT/RSPA (DHM-10)\n03-0284\n400 7\" Street S.W.\nWashington, D.C. 20590-0001\nDear Mr. Mazzullo:\nI would like an opinion regarding 49 CFR 171.8, definition for \"cargo\ntank motor vehicle\".\nThe definition for \"cargo tank motor vehicle\" in 171.8 would lead one to\nthink it only applies to vehicles with permanently attached cargo tanks, or\n\"bobtail type vehicles\"\nThe definition for \"motor vehicle\" in 171.8 includes bobtails and semi-\ntrailers.\nThe definition for \"cargo tank\" in 171.8 seems to describe both bobtails\nand semi-trailer transports.\nQuestion:\nReference 173.315(n). If \"cargo tank motor vehicle\" only pertains to\nbobtails, then where are the requirements for tractor trailer or semi-trailer\ntransports?\nPlease answer by letter or Fax (405)-521-6037\nRespectfully,\nICe Slum\nW.A. Glass\nAdministrator","truncated":false,"body_characters":2985}