DOT Class 1 is for explosives and is divided into six divisions.
DOT Hazard class 9 is Miscellaneous hazardous materials that do not meet the definitions of one of the other Hazard Classes. This class can include Environmentally Hazardous Substances, strong magnets shipped by air, and numerous other items.
DOT class 8 are corrosive.
DOT Hazard Class 3 is "Flammable Liquid".
There are three (3) packaging groups in the DOT regulations for shipping hazardous materials. Note, however, that some hazard classes have no packaging groups.
Corrosive materials are in Hazard Class 8.
Explosive materials are in DOT hazard class 1.
Division 1.3 is predominately a fire hazard, with a minor blast hazard.
Hazard class 4 is Flammable Solids.
DOT Hazard Class 4 is for flammable solids such as magnesium metal.
The DOT (Department of Transportation) class for radioactive materials is Hazardous. The specific Hazard number will be determined by the exact name of the radioactive materials. Special permits and placarding are needed for vehicles carrying hazardous materials. The DOT class is categorized into 9 classes according to hazardous materials transportation. Class 7 is the general DOT class for radioactive materials.
It is DOT class 8.