After all passengers have disembarked at the final destination, what must the driver do before leaving the bus?

POST-ROUTE BUS SWEEP is a mandatory safety procedure preventing the tragedy of passengers left on an empty bus — which can become a death trap in extreme heat within minutes. Required sweep procedure: after ALL expected passengers have left, the driver physically walks the entire interior; checks UNDER seats (children hide; injured passengers collapse); checks overhead compartments; checks the lavatory (if equipped); verifies every person has departed. This is especially critical for: school buses (required by law in many states with sensors); charter buses returning from late-night events (sleeping passengers); any service carrying persons who may not be able to self-rescue.