What is the minimum tread depth required for steering tires on commercial vehicles?

The minimum tread depth required for steering tires on commercial vehicles is indeed 4/32 of an inch. This specification is established to ensure adequate traction, handling, and safety while operating the vehicle. Steering tires experience more wear than other tires due to their role in guiding the vehicle's path, and as such, maintaining the proper tread depth is crucial for effective steering response, particularly in wet or slippery conditions.

Having at least 4/32 of an inch of tread depth helps to enhance grip, reduces the risk of hydroplaning, and contributes to overall vehicle stability. This standard is enforced to protect both the driver and the public from potential accidents that can arise from insufficient tire performance. Regularly checking the tread depth of steering tires is a vital part of pre-trip inspections to ensure compliance with safety regulations and promote safe driving practices.