{"operation":"document","citation":"02-0118","title":"CGRS — Hazardous Materials Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2002-05-29","effective_on":null,"summary":"02-0118 response to CGRS concerning 180.407.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-02-0118.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-02-0118.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-02-0118","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2002/020118.pdf","body":"<<<PAGE 1>>>\n\nU.S. Department\nResearch and\nof Transportation\n400 Seventh St., S.W.\nWashington, D.C. 20590\nStamin rail onese\nMAY 2 9 2002\nMr. Scott R. Burnside\nRef. No. 02-0118\nSpecial Projects Manager\nCGRS\nP.O. Box 1489\nFort Collins, CO 80522\nDear Mr. Burnside:\nThis is in response to your letter of April 9, 2002 and subsequent telephone conversation with\nMs. Sandra Webb of my staff concerning the testing and inspection requirements of specification\ncargo tanks in propane service under the Hazardous Materials Regulations (HMR; 49 CFR Parts\n171-180). Specifically, you asked whether MC 331 cargo tanks constructed of quenched and\ntempered steel used for the transportation of propane must be internally inspected by the wet\nfluorescent magnetic particle method as specified for cargo tanks used for the transportation of\nanhydrous ammonia and liquefied petroleum gas.\nAs specified in § 180.407(g), all components of the cargo tank wall, as defined in § 178.320(a)\nmust be pressure tested as prescribed by this paragraph. The inspection and test requirements in\n§ 180.407(g) of the HMR consist of three parts: an external visual inspection, an internal visual\ninspection and a pressure test (hydrostatic test or pneumatic test). Section 180.407(g)(3) provides\nthe internal visual requirements for cargo tanks constructed to MC 331 specification used for the\ntransportation of liquefied petroleum gas (LP-gas). You should be aware that propane is a liquefied\npetroleum gas. Thus, the internal inspection requirement by the wet fluorescent magnetic particle\nmethod as prescribed in 180.407(g)(3) is required to be performed in conjunction with the\nperformance of the pressure test prescribed in this section.\nI hope this information is helpful. If you have further questions, please do not hesitate to contact this\noffice.\nSincerely,\nDelmer Billings\nChief, Standards Development\nOffice of Hazardous Materials Standards\n180.407\n020118\n\n<<<PAGE 2>>>\n\ndeRs\nENVIRONMENTAL - CONSTRUCTION - COMPLIANCE\nWebb\n$180.407 g (vil) (3)\nApril 9, 2002\nCargo Tanks\n02-0118\nMr. Edward Mazzullo\nDirector of OHMS\n400 7' St\nUS DOT/ RSPA\nWashington DC, 20590\nRe: Interpretation; 49CFR 180.407(g)(viii)(3)\nDear Mr. Mazzullo;\nCGRS, Inc. performs hydrostatic testing on MC331 cargo tanks that carry propane. The above\nloes not mention propane. There is a general description in the regulations stating, \"any other\neferenced regulation applies specifically to anhydrous ammonia and liquefied petroleum gas bu\nthat propane causes corrosion stress cracking, are cargo tanks that transport propane required to\nhazardous materials that may cause corrosion stress cracking\". Is it your agency's interpretation\nplease contact me at 970-493-7780.\nYour Response to this inquiry is appreciated. If you have any questions regarding this letter\nSincerely\nSpecial Projects Manager\ncc: Mr. Ray Gassaway\nP.O. BOX 1489 • FORT COLLINS, COLORADO 80522 • PHONE: 970-493-7780 • FAX: 970-493-7986","truncated":false,"body_characters":2951}