Is it permitted to use regrooved tires on a school bus?

Regrooved tires are not permitted on school buses due to safety concerns and regulatory standards. The use of regrooved tires can compromise the integrity and performance of the tires, which is particularly critical for school buses that transport children. These vehicles are held to high safety standards to ensure the protection of passengers, and regrooved tires can lead to reduced traction, increased risk of blowouts, and overall decreased safety on the road. Regulations typically specifically prohibit their use on vehicles that carry schoolchildren to maintain stringent safety protocols.

The other options suggest conditions under which regrooved tires might be used, but school buses must adhere to stricter regulations, emphasizing the importance of reliable and safe tires.