This bill introduces new standards for motor vehicle equipment, specifically focusing on tire tread depth, brake lining measurements, and the inspection of steering and suspension systems. It amends RSA 266 by adding a new section (266:48-a) that mandates a minimum tire tread depth of 2/32 of an inch for vehicles on public roads. Additionally, it establishes a new section (266:28-a) that requires brake linings to have a minimum thickness of 2/32 of an inch, with specific measurement methods outlined for different types of brake linings.

Furthermore, the bill creates a new subdivision (266:118) that sets forth standards for steering and suspension systems. It prohibits the operation of vehicles that do not meet specified conditions, such as excessive steering linkage free-play and non-compliant wheel bearings or ball joints. The term "manufacturer's specifications" is defined to refer to the tolerances and standards set by the original equipment manufacturer. The act is set to take effect on January 1, 2027.