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Hazard Classes

Every hazardous material is assigned to one of nine hazard classes as defined in 49 CFR 172.101 and 173. The nine hazard classes are as follows:

 

Class 1

–  Explosives

Class 2

–  Gases Class 2 Flammable Gas

Class 3

–  Flammable Liquids/Vapors

Class 4

–  Flammable Solids

Class 5

–  Oxidizing Substances/Organic Peroxides

Class 6

–  Toxic and Infectious Substances

Class 7

–  Radioactive Material

Class 8

–  Corrosives

Class 9

–  Miscellaneous Dangerous Goods