How is gross combination weight (GCW) defined?

Gross combination weight (GCW) is defined as the total weight of the vehicle and trailer when they are combined. This measurement is critical for CDL operations because it helps ensure that the combined weight does not exceed the limits established for safe vehicle operation.

By understanding GCW, drivers can better adhere to weight restrictions that vary by state and local laws, which are designed to prevent accidents and maintain infrastructure. The significance lies in recognizing that GCW encompasses more than just the weight of the truck or the trailer individually; it captures their full weight combination and is essential for safe driving practices and compliance with regulations.