Radioactive materials belong to which Dangerous Goods Class?

• A. Class 8
• B. Class 9
• C. Class 6
• D. Class 7

Answer: (D)

In the Dangerous Goods system, radioactive materials are assigned to the seventh class because they emit ionizing radiation and require special containment, shielding, and handling. This class also carries specific packaging and labeling rules and transport limitations to protect people and the environment.

The other classes reference different hazards: some items are corrosive, some are toxic, and some are miscellaneous dangerous goods that don’t fit the other categories. So the seventh class is the one that designates radioactive materials.