Where must placards be placed on a vehicle?

Placarding is essential for vehicles transporting hazardous materials because it ensures that other drivers and emergency responders are aware of the materials being carried and can take appropriate safety precautions. The correct placement of placards on the front, rear, and both sides of the vehicle establishes a clear and visible warning from all angles, which is crucial for safety.

Having placards only on the rear or just one side would not provide adequate notice to motorists approaching from different directions or angles. This could lead to dangerous situations, especially in case of an accident or emergency. Therefore, the regulation to require placards on all four sides of the vehicle maximizes visibility and communication regarding the potential hazards the vehicle is carrying. This practice not only complies with federal regulations but also promotes safety on the road.