When are you allowed to move an improperly placarded vehicle carrying hazardous materials?

• A. During emergency, in order to protect life and property
• B. Never under any circumstances
• C. Only with police permission
• D. Only after removing the load

Answer: (A)

In an emergency you may move an improperly placarded hazmat vehicle to protect people and property. The placards warn responders about the hazards, so moving the vehicle is allowed only when staying could make the situation worse. After relocating, you should have the load properly placarded and inform the appropriate authorities. The other options don’t fit because the move is not allowed under ordinary conditions, it doesn’t require police permission, and you wouldn’t need to wait until unloading to act in a true emergency.