Are regrooved tires permitted for state inspection in New Hampshire?

In New Hampshire, regrooved tires are generally not allowed for state inspection. This regulation is in place primarily for safety reasons. Regrooved tires may not perform as well as new or properly maintained tires, especially under wet or challenging driving conditions. The tread depth and pattern of a tire can significantly impact a vehicle's handling, braking, and overall performance. Therefore, the prohibition of regrooved tires in state inspections helps ensure that all vehicles on the road meet appropriate safety standards, reducing the likelihood of accidents caused by inadequate tire performance.

The other choices imply certain exceptions or allowances for regrooved tires, but the general rule in New Hampshire is that they do not meet the necessary requirements for safety and are thus not permitted during inspections.