{"operation":"document","citation":"19-0051","title":"The Hartford Steam Boiler Inspection and Insurance Co. — Hazardous Materials Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2019-10-15","effective_on":null,"summary":"19-0051 response to The Hartford Steam Boiler Inspection and Insurance Co. concerning 178.46.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-19-0051.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-19-0051.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-19-0051","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/72711/190051.pdf","body":"<<<PAGE 1>>>\n\n0\nU.S. Department\nof Transportation\nPipeline and Hazardous\nMaterials Safety\nAdministration\n1200 New Jersey Avenue, SE\nWashington, DC 20590\nOCT 1 5 2019\nOberst Mulet\nCT Engineer II\nThe Hartford Steam Boiler Inspection and Insurance Co.\n1 State Street\nP.O. Box 5024\nHartford, CT 06102-5024\nReference No. 19-0051\nDear Mr. Mulet:\n-This letter is in response to your April 16, 2019, email requesting clarification of the Hazardous\nMaterials Regulations (HMR; 49 CFR Parts 171-180) applicable to DOT 3AL seamless\naluminum cylinders. Specifically, you ask whether the words \"significant change\" as used in\n§ 178.46(c)(6) means an increase or decrease of the given criteria or just an increase in water\ncapacity or base thickness, or the number of openings.\nSection l 78.46(c)(6) defines \"significant change\" applicable to DOT 3AL seamless aluminum\ncylinders as a 10% or greater change in cylinder wall thickness, service pressure, or diameter; a\n30% or greater change in water capacity or base thickness; any change in material; over 100%\nincrease in size of openings; or any change in the number of openings. The word \"change\" in\nthe above paragraph means either an increase or decrease, meaning a \"30% or greater change in\nwater capacity\" could be a 30% increase or a 30% decrease. Any of the above conditions would\nresult in the change being considered significant for the purposes of§ 178.46(c)(6).\nI hope this information is helpful. Please contact us if we can be of further assistance.\nSincerely,\nT. Glenn Foster\nChief, Regulatory Review and Reinvention Branch\nStandards and Rulemaking Division\n\n<<<PAGE 2>>>\n\nDodd, Alice (PHMSA)\n-\nFrom:\nSent:\nTo:\nSubject:\n/9-al.5'\nINFOCNTR (PHMSA)\nWednesday, April 17, 2019 5:04 PM\nHazmat Interps\nFW: Significant change clause\nHello Alice and lkeya,\nBelow is a request for interpretation from Mulet Oberst.\nThanks,\nJonathon, HMIC\nFrom: Mulet Oberst - Hartford-HSB [mailto:Oberst_Mulet@hsb.com]\nSent: Tuesday, April 16, 2019 4:51 PM\nTo: INFOCNTR (PHMSA) <INFOCNTR.INFOCNTR@dot.gov>\nSubject: Significant change clause\nTo: The Office of Hazardous Materials Standards;\nI have the following inquiry regarding 178.46(c)(6) \"significant change\":\nBackground:\nIn paragraph 178.46(c) of the 49 CFR, the word change instead of the words increased or decreased is used\nin two places as shown below in bold italics when compared to Clause 4.14.1 of CSA 8339-18.\n49 CFR - 178.46(c)(6) \"\n... a 30 percent or greater change in water capacity or base thickness\" more.\n\" ... or a change in the number of openings. B339-18, Clause 4.14.1\nI) the water capacity is increased by 30% or\nf) the number of openings in the finished\ncontainer is increased.\nQuestion: In 49 CFR, paragraph 178.46(c)(6), does the word \"change\" means either an increase or decrease\nof the given criteria in which exceeding such upper or lower criteria of the water capacity, or base thickness, or\nnumber of openings would constitute a significant change to an acceptable design requiring qualification by\nprototype testing?\nBest regards;\nOberst Mulet\nCT-Engineer II\nThe Hartford Stearn Boiler Inspection and Insurance Co.\nOne State Street\nPO Box 5024\n1\n\n<<<PAGE 3>>>\n\nJrtford , CT 06102-5024\n, elephone +1 (860) 722-5528\nFacsimile\nOberst Mulet@hsb.com\nwww.munichre.com/HSB\n.... I R_is_k_S_o_lu_t_io_n_s ___ 7\n~ ®\n-\nMunich RE ::s=-\nHartford S11iam Bo ll1ir\nIMPORTANT NOTICE\nThe information in this email (and any attachments hereto) is confidential. If you are not the intended recipient , you must not use or\ndisseminate the information. If you have received this email in error, please immediately notify me by \"Reply\" command and\npermanently delete the original and any copies or printouts thereof. Although this email and any attachments are believed to be free of\nany virus or other defect that might affect any computer system into which it is received and opened, it is the responsibi lity of the\nrecipient to ensure that it is virus free and no responsibility is accepted by The Hartford Steam Boiler Inspection and Insurance\nCompany or its subsidiaries or affiliates either jointly or severally, for any loss or damage arising in any way from its use.\n2","truncated":false,"body_characters":4163}