The bill amends several sections of the General Laws in Chapter 31-25, which pertains to "Size, Weight, and Load Limits" for vehicles. Key changes include the introduction of exemptions for road machinery when actively participating in work in an active work zone or crossing a highway within a work zone, as well as specific provisions for farm vehicles and public transit authority vehicles. Farm vehicles and machinery are exempt from maximum width, maximum length of single vehicle and load, front and rear extensions of load up to fifteen feet, axle load limits, and maximum weight and tandem axles while incidentally operated on highways. Additionally, vehicles hauling fodder or forage for farming purposes are exempt from load covering provisions.

The maximum length for articulated buses has been increased from forty feet to forty-five feet. New regulations regarding axle load limits have been established, specifying that single axle weight limits shall not exceed twenty-two thousand four hundred pounds or the gross axle weight rating set by the manufacturer. Vehicles equipped with lift axles must have them down whenever carrying a load, with a penalty of one hundred dollars for violations.

The bill also outlines the authority of the Department of Transportation to issue special permits for vehicles exceeding standard size or weight limits. Restrictions on travel times for oversized vehicles have been updated, and the bill includes provisions for penalties for non-compliance with the new regulations. The legislation aims to ensure safe travel while accommodating the needs of various vehicle types.