At what surface radiation level does DOT Label Radioactive II (Yellow) apply?

The DOT (Department of Transportation) Label Radioactive II (Yellow) applies to packages with a surface radiation level of 0.5 to 50 mR/h. This labeling indicates that the radioactive material within the package presents a radiation hazard when handled, and there are specific safety guidelines established for individuals who may come into contact with such materials.

This classification is crucial for ensuring safety in the transport of radioactive materials. It informs handlers, emergency responders, and the public about the potential radiation exposure risk and the necessary precautions. By identifying packages with this label, transporters can take appropriate measures to minimize exposure and comply with regulatory requirements for handling and transport of radioactive substances.

The other ranges mentioned in the options do not correspond to the specifications for the DOT Label Radioactive II. Therefore, the choice reflecting the correct range of 0.5 to 50 mR/h is essential for maintaining safety standards in the transportation and handling of radioactive materials.