With millions of children riding buses to school every day during the school year, it's crucial for you to know proper school bus safety rules. For example, when you see the telltale stop sign swing out, do you know when to stop for a school bus? This school bus safety infographic explains the most important school bus safety tips for drivers. When to stop for a school bus: Top takeaways Be alert when the school bus stop sign is extended and yellow lights are flashing.Stop immediately when the school bus stop sign is extended and red lights are flashing.Stop when the bus stops and remain stopped until the bus begins moving again.