Busses are heavy vehicles that are usually governed by the Federal Motor Carrier Safety Regulations. These are the same rules that govern drivers of tractor-trailers and other big trucks on our roads. One of the main reasons for the multitude of rules for heavy vehicles, over 16,000 pounds, is that when the rules are not followed, death and mayhem can result.
The forces are much greater with a commercial vehicle, such as a large school bus or an interstate Greyhound bus such that when they crash into another vehicle or when the driver loses control and rolls the bus or crashes into a stationary object, serious injuries are often the result. This is especially true since most busses do not have safety belts in them.
They rely on a system called “compartmentalization.” This is a system where seats are padded and are said to be like an egg carton that protects eggs. As stated by the National Transportation Safety Board, however, while this system can protect its occupants, it is inadequate to protect passengers from serious injury or death.
Although bus manufacturers and companies such as Greyhound that operate fleets of busses have been urged to make seatbelts available, for some reason most have chosen not to integrate this safety feature into their buses.