When must you intervene as driver of a school bus while you are driving?

You selected the correct answers. As a school bus driver, you must intervene if children enter the marked off area or are standing on the seats while the bus is moving. Both behaviors are unsafe: entering the marked area puts children closer to doors or dangerous parts of the bus, and standing on seats increases the risk of falling or injury during sudden stops or movements. Ensuring that children remain seated and outside restricted zones is important for their safety. This is a strict rule for all bus drivers transporting children in Germany. Changing seats, while not ideal, is not specified as a situation requiring immediate intervention according to this question. Always prioritize safety by stepping in when rules are broken that could endanger passengers.