What is the minimum tread depth for tires to be considered safe?

The minimum tread depth for tires to be considered safe is 1.6 millimeters. This depth is crucial for maintaining adequate traction, especially in wet conditions where tires need to effectively channel water away to avoid hydroplaning. Tires that are below this minimum depth may significantly increase the risk of losing grip on the road, compromising not only vehicle control but also the safety of the driver, passengers, and others on the road.

In many regions, including those governed by USAREUR regulations, maintaining this minimum tread depth is not just a safety recommendation; it often forms part of legal requirements for vehicle operation. Having tires that meet or exceed this standard ensures that vehicles perform reliably under various driving conditions.