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 new sections that stipulate that no person shall drive a motor vehicle unless each tire has a minimum tread depth of 2/32 of an inch and that the brake lining at each wheel must also have a minimum thickness of 2/32 of an inch. The bill specifies that these requirements do not apply to commercial motor vehicles, school buses, and mixed-use school buses that exceed 10,000 pounds in weight.

Additionally, the bill establishes standards for steering and suspension systems, prohibiting the operation of vehicles that do not meet specified conditions, such as excessive steering linkage free-play or non-compliant wheel bearings and 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 upon its passage.