Which class of hazardous materials is identified as radioactive?

The correct classification for hazardous materials that are radioactive is Class 7. This class specifically includes materials that emit radiation, such as uranium, plutonium, and certain isotopes used in medical applications. These materials are characterized by their ability to release ionizing radiation, which can be harmful to human health and the environment if not properly managed.

Understanding the categorization of hazardous materials is essential for law enforcement and emergency response personnel, as it aids in recognizing the nature of a potentially dangerous substance and determining appropriate safety protocols. Class 7 materials require stringent handling and transport regulations to mitigate the risks associated with radiation exposure, ensuring safety for both responders and the public.

The other classes mentioned do not pertain to radioactive materials. Class 5 involves oxidizers and organic peroxides, Class 8 includes corrosive substances, and Class 9 is reserved for miscellaneous hazardous materials that do not fit into the other classes. This distinction is critical for effective risk mitigation and ensures that appropriate measures are taken when dealing with various types of hazardous substances.