What should be done when a vehicle carrying Class 7 materials is not in motion?

When a vehicle carrying Class 7 materials is not in motion, it is crucial for a qualified person to monitor it. Class 7 materials refer to radioactive substances, which require stringent safety protocols due to their potential health hazards. Having a qualified person present ensures that any issues, such as leaks or other safety concerns, can be addressed promptly and appropriately. This monitoring is vital to protect public safety and the environment because unauthorized access or unforeseen incidents can pose significant risks associated with radioactive materials.

In contrast, simply checking for leaks might not be sufficient if no one is actively monitoring the situation, as leaks can evolve quickly. Parking away from other vehicles may reduce risks in a broad scope but does not address immediate safety concerns while the vehicle is stationary. Leaving the vehicle unattended is not a safe practice since it could lead to serious contamination or exposure issues if an emergency were to occur. Thus, monitoring by a qualified individual is the best approach for ensuring safety and compliance with regulations related to hazardous materials.