This vehicle is displaying plain orange hazard plates. How many such placards MUST it display?

Explanation: • One on the rear only: No, this vehicle would need more than one such plate.
• One on the front, one on the rear and also one on each side which contains the UN identification number: No, it only requires one to the front and one to the rear.
• The sign is purely optional in this instance because the nature and type of load can be clearly seen: No, the sign is not optional.
• One to the rear and one to the front: Correct.

Category: CPC Case Studies: Technical Matters