This law defines key vehicle weight ratings, including the Gross Combination Weight Rating (GCWR) and Gross Vehicle Weight Rating (GVWR), which are set by manufacturers. It also clarifies the definition of gross weight as the vehicle's weight plus any load. These definitions are essential for vehicle classification and compliance with safety standards.
The GCWR is the maximum allowable weight of the vehicle combined with any trailer or towed units, as specified by the manufacturer and displayed on the safety certification label.
The GVWR is the highest weight of the vehicle including its maximum load, calculated as the sum of the vehicle's own weight and its load, or the highest combined weight of the vehicle and towed units.
Yes, the GCWR is used to determine if a vehicle qualifies as a commercial motor vehicle, especially when towing other units, but the power unit's GCWR alone does not define this.
Gross weight includes the vehicle's weight without load plus the weight of any load it carries.