How many rear view mirrors are required on a vehicle?

The requirement for two rear view mirrors on a vehicle is based on safety considerations and visibility standards set by regulatory authorities. Having both an interior rear view mirror and at least one exterior side mirror significantly enhances a driver's ability to see vehicles and obstacles behind them. This arrangement reduces blind spots and allows for better overall awareness of surrounding traffic, which is essential for making safe driving decisions.

The interior mirror provides a wide view of the area directly behind the vehicle, while the exterior side mirror(s) expands this view to the sides. This dual arrangement helps prevent accidents that can occur when merging, changing lanes, or reversing. By ensuring that vehicles are equipped with two mirrors, the regulations aim to promote safer driving conditions for everyone on the road.