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 require a minimum tire tread depth of 2/32 of an inch for vehicles, and similarly mandates that brake linings must also have a minimum thickness of 2/32 of an inch. The bill specifies that these measurements must be taken using calibrated tools and outlines the conditions under which these standards do not apply, notably for commercial motor vehicles, school buses, and mixed-use school buses that exceed 10,000 pounds in weight.

Additionally, the bill establishes inspection 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 set by the original equipment manufacturer. The bill is set to take effect upon its passage, which is approved for July 10, 2026.