DOT Class 1 is for explosives and is divided into six divisions.
Explosive materials are in DOT hazard class 1.
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.
3
DOT Hazard Class 3 is "Flammable Liquid".
DOT Hazard Class 4 is for flammable solids such as magnesium metal.
There are three (3) packaging groups in the DOT regulations for shipping hazardous materials. Note, however, that some hazard classes have no packaging groups.
The Department of Transportation (DOT) classifies hazardous materials into nine distinct hazard classes based on the nature of the risk they pose during transportation. These classes include explosives, gases, flammable liquids, flammable solids, oxidizers, poisons, radioactive materials, corrosives, and miscellaneous hazardous materials. Each class has specific regulations regarding packaging, labeling, and handling to ensure safety during transport. Understanding these classes is essential for compliance and risk management in the transportation of hazardous materials.
Explosives, Hazard Class 1
Corrosive materials are in Hazard Class 8.
Division 1.3 is predominately a fire hazard, with a minor blast hazard.
There are nine (9) hazard classes in the hazard classification system used by the US Department of Transportation and other transportation agencies around the world. There may be a different number of classes in other processes.