I have previously blogged on the need for seatbelts on buses HERE. When a bus rolls over passengers are often slung out of the bus, resulting in paralysis and death. A simple lap belt. similar to what we use on an airplane, would prevent this.
Recently the highest court in New York looked at whether federal law preempted claims against a bus manufacturer for failing to include passenger seatbelts. The court, in a huge step towards safety, concluded the claim was not preempted by federal law. The case may be found HERE.
Compare the New York decision to an earlier decision in Tennessee HERE.