According to the Motor Vehicle Act, every commercial vehicle must be equipped with a horn in good working order. The horn must be capable of producing a sound that is both audible and distinct from the sound of other vehicles.
The purpose of the horn is to warn other drivers and pedestrians of the presence of the commercial vehicle. It is important for commercial vehicles to have a horn that is loud enough to be heard over the noise of traffic.
In addition to the Motor Vehicle Act, some states and municipalities may have their own regulations regarding the use of horns on commercial vehicles. It is important for commercial vehicle drivers to be aware of these regulations and to comply with them.