- In a commercial vehicle with an all up weight of up to 15,000 kg, when the height of the freight is more than 4 meters above ground.
- In a commercial vehicle weighing more than 4,000 kg.
- In a commercial vehicle with an all up weight of more than 15,000 kg, when the height of the freight is more than 4.80 meters above ground.
- In a vehicle weighing 1.5 tons, when the height of the freight is more than 2.50 meters.