What do red flashing lights and the extended stop arm on a school bus require other drivers to do?

• A. Slow to 15 mph and pass with caution.
• B. Stop and remain stopped until lights are off and the stop arm is withdrawn.
• C. Honk to alert bus riders.
• D. Only bus must stop, others may proceed.

Answer: (B)

Red flashing lights and the extended stop arm tell you the bus is loading or unloading students, so all traffic must come to a complete stop and remain stopped until the lights are turned off and the stop arm is withdrawn. This rule is in place to keep children safe as they cross in front of or near the bus. The other options—speeding up to pass, honking, or assuming only the bus must stop—do not meet this safety requirement and could endanger students.