Know your responsibilities with regard to the PA's school bus stopping laws. When you meet or overtake a stopped school bus with red signal lights flashing and stop arm extended, you MUST STOP. When you approach an intersection where a school bus is stopped with red signal lights flashing and stop arm extended, you MUST STOP. You MUST STOP at least 10 (10) feet away from the school bus. You MUST WAIT until the red lights have stopped flashing and the stop arm has been withdrawn before moving. DO NOT MOVE until all the childing have reached a place of safety.