A tire considered illegal if the tead is less?

A tire is considered illegal if the tread depth is less than the minimum requirement set by law, which varies by region but is often around 2/32 of an inch (1.6 mm) in many areas. Insufficient tread can significantly reduce traction, especially in wet or slippery conditions, increasing the risk of accidents. Regularly checking tire tread depth is essential for safety and compliance with legal standards. If the tread is worn down to this limit or below, the tire should be replaced immediately.