Which class is concerned with radioactive substances?

Class 7 is indeed the classification for radioactive substances in the context of hazardous materials. This classification is vital for ensuring safety measures are in place when dealing with materials that emit radiation, which can pose serious risks to health and the environment.

Radiation can lead to both acute and chronic health effects depending on the type and amount of exposure, making it essential for first responders, including firefighters, to be aware of the presence of Class 7 materials when managing HAZMAT situations. Understanding this classification is crucial in implementing appropriate protective measures, containment strategies, and emergency response actions to mitigate the hazards associated with radioactive materials.