What must drivers do when they see a school bus with its stop sign extended?

When drivers encounter a school bus with its stop sign extended, they are required to stop and wait until the stop sign is retracted. This law is in place to protect children who may be getting on or off the bus. The extended stop sign is a clear signal that children are in the vicinity and may not be visible to drivers. Stopping provides a crucial safety buffer for these young passengers, ensuring they can cross the road safely without the risk of a vehicle approaching.

Failure to stop when a school bus has its stop sign extended could lead to serious consequences, including fines and points on a driver's license, as it is considered a violation of traffic laws designed to protect children. It is also vital for drivers to remember that the law requires vehicles to stop regardless of the direction they are coming from—this includes both oncoming and trailing traffic. Thus, stopping until the sign is withdrawn is a necessary action to ensure safety in school zones.