{"operation":"document","citation":"13-0209","title":"DuPont Global Logistics — Hazardous Materials Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2014-02-10","effective_on":null,"summary":"13-0209 response to DuPont Global Logistics concerning 173.24, 173.320.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-13-0209.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-13-0209.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-13-0209","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2013/130209.pdf","body":"<<<PAGE 1>>>\n\nU.S. Department\nof Transportation\nPipeline and. Hazardous\nMaterials Safety\nAdministration\n1200 New Jersey Avenue, SE\nWashington, D.C. 20590\nFEB 1 0 2014\nMr. Kevin Greene\nHazardous Materials Consultant\nDuPont Global Logistics\nP.O. Box 525\nAxis, AL 36505\nReference No.: 13-0209\nDear Mr. Greene:\nThis is in response to your November 5, 2013 letter and conversation with a member of my\nstaff requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts\n171-180). Specifically you ask if the HMR authorize the installation of a 2 inch bung/vent\ninto a UN 1H1 plastic drum that would permit air to enter the drum, but not allow the\nrelease of hazardous material from the drum. You note that the drum will be fitted with the\nbung/vent prior to subjecting it to the tests specified in Part 178.\nThe HMR authorize openings for filling, emptying or venting in UN 1H1 plastic drums in\naccordance with the provisions of§ 173.24(g). Please note that except for shipments of\ncryogenic liquids as specified in§ 173.320( c) and of carbon dioxide, solid (dry ice), venting\nof packages is not permitted when transportation by aircraft is involved. When venting is\nauthorized, provided the drum passes the appropriate design tests with the bung/vent in\nplace and does not allow the escape of hazardous material, the opening described in your\nletter is acceptable.\nI hope this information is helpful. If you have further questions, please do not hesitate to\ncontact this office.\nSincerely,\nDuane Pfund\nInternational Standards Coordinator\nStandards and Rulemaking Division\n\n<<<PAGE 2>>>\n\nDuPont Global Logistics\nP.O. Box525\nAxis, Alabama 36505\nDuPont Global Logistics\n05 November 2013\nMr. T. Glenn Foster\nChief, Regulatory Review and Reinvention Branch\nStandards and Rulemaking Division\nAttn: PHH-1 0\nEast Building\n1200 New Jersey Avenue, SE.\nWashington, DC 20590-0001\nRequest a written formal interpretation regarding the usEt of vents on plastic 1H1\ndrums as provided in 173.24(g)(1)(2)(3) of the HMR.\nDear Mr. Foster:\nI have a 55-gallon plastic drum (1 H1/Y1.9/150) that will be used to transport a class 9\nliquid (Marine Pollutant) by sea and air. The drum will be fitted with a 2\" bung/vent that\nwill allow air to enter the drum but will not allow any liquid or gas to exit the drum. The\npurpose of the vent is to allow air to enter the drum to avoid drum paneling (e.g. slight\nsucking-in or collapsing) of the plastic drum body due to methyl soyote scavenging air\nfrom the head space.\nBased on my understanding of the provisions provided in part 173.24(g)(1 )(2)(3) of the\nHMR, I may install a vent on my plastic drum that will allow air to enter the plastic drum\nbut will not permit any hazardous (i.e. poisonous, flammable)liquid or gas to exit the\ndrum. Is my understanding correct?\nI hope this information is helpful. Please contact me if you require additional assistance.\nKevin M. Greene\nHazardous Materials Consultant\nDuPont Global Logistics\nP.O.Box 525\nAxis, Alabama 36505\nPhone: (251) 679.5330\nKevin.m.greene@dupont. com","truncated":false,"body_characters":3050}