Which of the following commercial vehicles must be equipped with a speed “Governor”?

1. Commercial vehicles with an all up weight of up to 10,000 kg.
2. It is obligatory to install a speed limiter in every commercial vehicle.
3. Commercial vehicles with an all up weight of up to 8,000 kg.
4. Correct answer: Vehicles with an all up weight of more than 12,000 kg, truck tractors and work vehicles.

WhyA speed governor is required on vehicles over 12,000 kg, truck tractors and work vehicles.