Shipping Hazardous Materials

Determine your DOT hazard class

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  • Shipping hazardous materials.

    The U. S. Department of Transportation (DOT) has specific rules for shipping hazardous materials. Freightquote can help you determine the DOT hazard class for your shipment and find freight carriers that meet all the DOT safety and transportation requirements.

    Hazardous materials are defined by the U. S. Department of Transportation in accordance with the Federal Hazardous Material Law regulations. A DOT hazardous material classification is applied if a material, in a particular amount and form, poses an unreasonable risk to health, safety or property.

    Below is the list of DOT hazard classes. For more information about the Department of Transportation, visit here

    DOT Hazard Class 1: Explosives

    • Division 1.1: Explosives with a mass explosion hazard
    • Division 1.2: Explosives with a projection hazard
    • Division 1.3: Explosives with predominantly a fire hazard
    • Division 1.4: Explosives with no significant blast hazard
    • Division 1.5: Very insensitive explosives
    • Division 1.6: Extremely insensitive explosive articles

    DOT Hazard Class 2: Gases

    • Division 2.1: Flammable gases
    • Division 2.2: Non-flammable gases
    • Division 2.3: Poison gases
    • Division 2.4: Corrosive gases

    DOT Hazard Class 3: Flammable liquids

    • Division 3.1: Flashpoint below -18°C(0°F)
    • Division 3.2: Flashpoint below -18°C and above, but less than 23°C(73°F)
    • Division 3.3: Flashpoint 23°C and up to 61°C(141°F)

    DOT Hazard Class 4: Flammable solids, spontaneously combustible materials, and materials that are dangerous when wet

    • Division 4.1: Flammable solids
    • Division 4.2: Spontaneously combustible materials
    • Division 4.3: Materials that are dangerous when wet

    DOT Hazard Class 5: Oxidizers and organic peroxides

    • Division 5.1: Oxidizers
    • Division 5.2: Organic peroxides

    DOT Hazard Class 6: Poisons and etiologic materials

    • Division 6.1: Poisonous materials
    • Division 6.2: Etiologic(infectious) materials

    DOT Hazard Class 7: Radioactive material

    • Any material, or combination of materials, that spontaneously gives off ionizing radiation. It has a specific activity greater than 0.002 microcuries per gram.

    DOT Hazard Class 8: Corrosives

    • A material, liquid or solid, that causes visible destruction or irreversible alteration to human skin or a liquid that has a severe corrosion rate on steel or aluminum.

    DOT Hazard Class 9: Miscellaneous dangerous substances and articles

    • A material that presents a hazard during transport, but which is not included in another hazardous freight classification.

    ORM-D: Other regulated material

    • A material that, although otherwise subjected to regulations, presents a limited hazard during transportation due to its form, quantity and packaging.