{"operation":"document","citation":"25-0060","title":"Global Industrial Packaging — Hazardous Materials Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2025-07-15","effective_on":null,"summary":"25-0060 response to Global Industrial Packaging concerning 178.503.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-25-0060.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-25-0060.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-25-0060","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/2025-07/250060.pdf","body":"<<<PAGE 1>>>\n\n1200 New Jersey Avenue, SE\nWashington, DC 20590\nU.S. Department\nof Transportation\nPipeline and Hazardous\nMaterials Safety\nAdministration\nJuly 15, 2025\nJohn Foryt\nDirector, Global Product Safety & Compliance\nGlobal Industrial Packaging\n366 Greif Parkway\nDelaware, Ohio 43015\nReference No. 25-0060\nDear Mr. Foryt:\nThis letter is in response to your May 1, 2025 email requesting clarification of the Hazardous\nMaterials Regulations (HMR; 49 CFR Parts 171-180) applicable to markings on UN\nspecification non-bulk performance-oriented packagings. Specifically, can a single UN symbol\nbe used to meet the requirements in § 178.503(a)(1) when multiple (e.g., two or more) markings\nare included on a packaging.\nNo. In accordance with § 178.3(c), the HMR specifically states if more than one marking appears\non a packaging, each marking must appear in its entirety. Thus, each marking string must include\nits own UN symbol or the letters “UN” as part of the marking string.\nI hope this information is helpful. Please contact us if we can be of further assistance.\nSincerely,\nDirk Der Kinderen\nChief, Standards and Development Branch\nStandards and Rulemaking Division\n\n<<<PAGE 2>>>\n\nMay 1, 2025\nMr. Shane Kelley\nDirector, Standards and Rulemaking Division\nU.S. DOT/PHMSA (PHH-10)\n1200 New Jersey Avenue, SE East Building, 2nd Floor\nWashington, DC 20590\nSubmitted via email to infocntr@dot.gov\nLetter of Interpretation Request\nDear Mr. Kelley:\nOn behalf of Greif Inc. (GBC), this communication is to request a formal letter of interpretation\naround the requirements for marking UN packaging in 49 CFR 178.503. Specifically, Greif wishes to\nunderstand whether a single UN symbol can be used to meet the requirements of 178.503(a)(1)\nwhen multiple (2 or more) markings are included on a packaging.\nTo better illustrate the question, the below graphic highlights the above-mentioned scenario where\na 1H1 plastic drum carries two markings in the embossment.\nWhile the requirements for the inclusion of the lowercase UN symbol in a mark are clear, the CFR\ntext does not make clear whether each mark must begin with a separate UN symbol, or if one large\nsymbol at the beginning of each mark fulfills the requirement.\nThank you for your attention and response to Greif’s request for a formal letter of interpretation.\nGlobal Industrial Packaging\n366 Greif Parkway – Delaware, Ohio 43015\nCorporate Office\n425 Winter Road – Delaware, Ohio 43015\nwww.greif.com\n\n<<<PAGE 3>>>\n\nSincerely,\nJohn Foryt\nDirector, Global Product Safety & Compliance\nJohn.Foryt@Greif.com\n614-499-4919\nGlobal Industrial Packaging\n366 Greif Parkway – Delaware, Ohio 43015\nCorporate Office\n425 Winter Road – Delaware, Ohio 43015\nwww.greif.com","truncated":false,"body_characters":2707}