What is the minimum required rear axle tire tread depth for a school bus?

The minimum required rear axle tire tread depth for a school bus is 2/32 of an inch. This specification is crucial for ensuring that the tires can maintain adequate traction on various surfaces, especially in adverse weather conditions. Insufficient tread depth can lead to reduced grip, increased stopping distances, and a higher risk of tire blowouts, all of which pose significant safety hazards, particularly for vehicles like school buses that carry children.

This specific requirement is established to promote optimal performance and safety standards within the transportation of students. It reflects the need for bus drivers to regularly inspect their vehicles to confirm that tire conditions are suitable for safe operation.