What does 49 CFR 173.2 (Hazardous material classes and index to hazard class definitions) require?

Short answer

49 CFR 173.2 requires the classification of hazardous materials into their respective hazard classes and divisions, and provides a table to help determine these classifications. The regulation lists nine hazard classes, including explosives, gases, flammable liquids, and corrosive materials.

The rule says

"The hazard class of a hazardous material is indicated by either the class or division number or the class name." (49 CFR 173.2)

"Table 1 to 173.2 Class No. Division number (if applicable) Name of class or division" (49 CFR 173.2)

In plain English

It provides a framework for classifying these materials into their respective hazard classes and divisions, which helps to determine the necessary safety precautions and handling procedures. The table provided in the regulation helps to simplify this process by listing the different hazard classes and divisions, along with their corresponding class numbers and division numbers. In practice, this means that shippers and carriers must properly classify hazardous materials before transporting them, and must follow the relevant safety regulations for each hazard class and division.

What to do

• Review the table in 49 CFR 173.2 to determine the hazard class and division of the material being transported.
• Ensure that all hazardous materials are properly classified and labeled before transportation.
• Follow the relevant safety regulations for each hazard class and division, as outlined in 49 CFR parts 172-177.
• Verify that all personnel handling hazardous materials are properly trained and equipped to do so safely.