Per the FMCSA, what is the minimum tread depth for a steer tire?

The FMCSA regulates that any steer tire must have a minimum tread depth of 4/32 of an inch. This is for every major tread groove. Any spot with less tread depth will lead to a citation. Drive and trailer tires have a minimum tread depth of 2/32 of an inch. The CVSA has a different regulation.

Asked by Kendra Whitmire · Last updated 5 years ago · 85.1K views · SOURCE