UN number lookup
Choose a number range to find the shipping descriptions, US hazard class or division and packing group in the 1 October 2025 US HMT.
Official US table
One page per UN number. Where a number has several descriptions or packing groups, the page keeps their row-specific values together. US hazard classes are not presented as ADR classifications.
Before shipping
Check the current ADR edition before shipping. This is a US HMT reference snapshot, not ADR classification or shipping, legal or safety advice.
Found a data error?
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