The law requires to install a third license plates in these types of vehicles:

1. Every commercial vehicle with an all up weight of up to 3,500 kg.
2. Every commercial vehicle with an all up weight of up to 7,500 kg.
3. Correct answer: Trucks with reclining trailers.
4. Every commercial vehicle and truck tractors.

WhyA third license plate is required on trucks with reclining trailers.