{"@context":"https://schema.org","@type":"DefinedTerm","name":"UN Number","description":"The UN Number identifies a hazardous substance or article unambiguously across every mode of transport. Assigned by the United Nations Committee of Experts on the Transport of Dangerous Goods, this four-digit code appears in ADR (road), RID (rail), IMDG (sea), and IATA DGR (air) regulations alike, making it the universal language of dangerous goods handling. In daily freight operations, the UN Number must appear on shipping documents, hazard labels, and—where required—on the orange hazard placar","inDefinedTermSet":{"@type":"DefinedTermSet","name":"Frachtportal Logistics Glossary","url":"https://www.freight-academy.com/en/glossary"},"url":"https://www.freight-academy.com/en/glossary/un-number-2","inLanguage":"en","dateModified":"2026-06-26T19:09:10.642138","citation":"https://unece.org/transport/dangerous-goods","markdownMirror":"https://www.freight-academy.com/api/md/glossary/en/un-number-2","provider":{"@type":"Organization","name":"Frachtportal","url":"https://www.freight-academy.com"},"quickSummary":"UN Number · The UN Number identifies a hazardous substance or article unambiguously across every mode of transport. · Quelle: https://unece.org/transport/dangerous-goods"}