What is the one action the driver must always repeat at least twice before putting the bus in motion?

The driver's responsibility to check mirrors before putting the bus in motion is crucial for ensuring safety. This action helps the driver maintain awareness of the surrounding environment and any potential hazards, such as nearby pedestrians, vehicles, or objects, that could interfere with the bus’s path.

Mirrors provide a vital visual reference, allowing the driver to see the areas to the side and rear of the bus that are otherwise blind spots. Repeating this check at least twice ensures that the driver is thoroughly aware of their surroundings, particularly in busy environments where students may be boarding or disembarking.

This practice also aligns with standard operating procedures for school bus drivers, emphasizing the importance of vigilance and attentiveness in protecting the safety of students and other road users. Regular and repeated checks of mirrors contribute to a proactive approach in preventing accidents and enhancing overall safety while driving a school bus.