What must all containers for radioactive materials have?

All containers for radioactive materials must have proper labeling and hazard warnings as this is essential for safety and compliance with regulatory standards. The labels serve several important functions: they inform users and personnel about the contents of the container, including the type and quantity of radioactive materials, and provide necessary safety precautions to handle the material safely. Hazard warnings are crucial in alerting anyone who may come into contact with the container about the potential risks involved, ensuring they can take appropriate measures to protect themselves and others. This labeling is not only a requirement for safe handling but is also a regulatory obligation aimed at minimizing exposure to radiation and ensuring public safety.