Load rating refers to the maximum weight or load that a structure, vehicle, or component can safely support without risk of failure. This rating is crucial in engineering and construction, ensuring that bridges, buildings, and other structures can withstand expected forces, such as vehicles or environmental conditions. In vehicles, load ratings help determine how much cargo can be safely carried without compromising safety or performance. For example, the load rating of a truck indicates the maximum weight it can transport, which is essential for both the vehicle's longevity and the safety of its operation on the road.