Massachusetts Driver's Instructor Practice Exam

The minimum tread depth for tires is crucial for ensuring safe driving conditions. A tread depth of 1/16th of an inch is the legal limit in many places, including Massachusetts, for safe tire performance. When the tread depth reaches this limit, tires can suffer from reduced traction, especially in wet or slippery conditions, increasing the risk of hydroplaning and loss of control.

Maintaining adequate tread depth helps enhance vehicle grip, stability, and braking performance, which are vital for driving safety. New tires typically start with a tread depth of around 10/32nds to 12/32nds of an inch, so as the tires wear down to the 1/16th of an inch threshold, drivers should consider replacing them to avoid safety hazards. Understanding this standard is essential for all drivers to ensure they can recognize when their tires need replacing and maintain optimal safety on the road.