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Browse UN/NA Datasheets

For every UN/NA number in the Emergency Response Guidebook and the hazmat table in 49 CFR 172.101, there is a UN/NA datasheet in CAMEO Chemicals.

What are UN/NA numbers?

United Nations-North America numbers identify an individual chemical or group of chemicals with similar characteristics; these 4-digit numbers are often preceded by UN (such as UN1219). UN/NA numbers are required on shipping papers and are often shown on placards and labels. (These numbers may also be called NA numbers or DOT numbers.)

There are 2359 UN/NA datasheets in CAMEO Chemicals: