When must you stop for a school bus on a divided highway?

Stopping for a school bus on a divided highway is determined by specific rules designed to protect children as they safely enter or exit the bus. The correct answer states that you must stop when the bus has its stop sign extended on your side of the highway. This is because the school bus's extended stop sign indicates that children may be crossing the roadway, making it essential for vehicles approaching from the same side to halt.

In contrast, even if the bus is in the opposite lane, the law only requires vehicles traveling in the same direction or those on the same side of the highway as the bus to stop when the stop sign is extended. This means that while you may not need to stop for a bus that is not in your lane, you are legally obligated to stop if you are on the same side and the bus signals for children to cross. Flashing lights also signify that the bus is preparing to stop, but they work in conjunction with the extended stop sign to inform you of the need to halt specifically when the sign is visible on your side.