What type of lights is required on all school buses?

The requirement for warning lights, including flashing red and amber lights, on all school buses is essential for ensuring the safety of children and other road users. These lights serve specific purposes:

Flashing amber lights indicate that the school bus is preparing to stop to load or unload children, giving drivers a warning to slow down and be ready to stop. This is crucial in preventing accidents as children may be crossing the street or exiting the bus.

Flashing red lights are used when the bus is stopped and loading or unloading children. When activated, these lights signal to all approaching vehicles that they must stop their vehicles, allowing children to safely cross the street or enter/exit the bus.

Together, these warning lights create a clear visual indication to all road users about the presence of a school bus and the potential for children nearby, helping to reduce the risk of accidents. The other choices, such as only headlights, interior lights, or rear fog lights, do not provide adequate warning or safety measures specific to school bus operations.