I live in
Australia, and seat belts where not compulsory on school buses. Well there's been several accidents whaich have killed or badly injured students but these have occured in different states of Australia. State laws and federal laws are different from state to state. But recently the federal government ordered that all school buses must have seat belts. I guess the "who's going to pay for this" delayed seat belt being put in all buses for some years. I would guess that The federal government of the United States of America need to do the same thing.