What is the required letter height on the front and rear of a school bus?

The required letter height on the front and rear of a school bus is 8 inches. This specification is crucial for maintaining visibility and legibility, especially since school buses often operate in areas with high pedestrian activity, such as near schools and residential zones. The 8-inch height ensures that the letters can be read easily from a distance, enhancing safety by making the vehicle’s identification clear to drivers and pedestrians. This standard is established by regulations to ensure that school buses are easily recognizable, which is particularly important for child safety.