UN Number Lookup
Search by the word you would actually use — perfume, lithium, aerosol — or by the number itself. You get the whole row, and every entry that shares the number.
🔒 Your data never leaves your browser.
Getting the number right is not getting the entry right
One UN number routinely covers several entries. UN1950 — aerosols — has separate
flammable, non-flammable and corrosive entries, and they carry different packing
groups and different per-package limits.
Fill in the number and stop there and the paperwork looks complete while the quantity limit is the wrong one. So this page always returns every entry under a number and never picks one for you.
This is a lookup, not a classification
Which entry your product falls under depends on its actual composition, concentration, packaging and mode of transport. That is a dangerous goods classification, done by someone qualified, from the product's own safety data — not from matching a word against a table.
What this page does is help you find and read the right row once you know which one it is. A result of "no match" is not evidence that something ships as ordinary goods: plenty of hazardous items are listed under a chemical name rather than the one printed on the box.
Which table this is
All 2,090 rows come from 49 CFR 172.101, the US Hazardous Materials Table, which adopts the international list into US law. The UN's own publication and the US regulator's own site both refuse automated requests, so this project carries the version it could actually retrieve and verify rather than one it could not check. For international movements, confirm against the regulations for that mode.
Every check this tool runs (7 rules)
UNN-M01 This is a lookup, not a classification
Which entry a product falls under depends on its actual composition, concentration, packaging and mode of transport — that is a dangerous goods classification, done by someone qualified, from the product’s own data. This tool helps you find and read the right row; it cannot tell you which row is yours.
UNN-D01 One number, several entries
A UN number frequently covers more than one proper shipping name, and the entries differ in packing group and in how much may travel per package. UN1950 (aerosols) has separate flammable, non-flammable and corrosive entries with different limits. Picking one without reading the names is how a shipment gets refused with the paperwork technically filled in.
UNN-F01 Forbidden on that mode of transport
The table marks some entries as forbidden aboard passenger aircraft, cargo aircraft, or both. A forbidden entry is not a paperwork question — the goods cannot travel that way at all.
UNN-N01 No entry matched
Nothing in the table matched. That is not evidence the product is safe to ship as ordinary goods — many hazardous items are listed under a chemical or generic name rather than the one on the packaging.
Fix: Search by a component name, or ask the supplier for the safety data sheet, which names the entry.
UNN-A01 NA numbers are US-only
Entries beginning NA rather than UN are North American numbers with no international equivalent. They are valid for domestic US movements and not recognised elsewhere.
UNN-S01 US table, not the UN Model Regulations
These rows come from the US Hazardous Materials Table, which adopts the international list into US law. The UN’s own publication and the US regulator’s site both refuse automated access, so this project carries the version it could actually retrieve and verify. For international movements confirm against the mode’s own regulations.
UNN-V01 Entry found
The row is shown with its class, packing group, labels and per-package limits.
Carrying 2,090 entries from 49 CFR 172.101. A lookup, never a classification.