Gross Combined Weight. The combined weight of the tow vehicle and the trailer.
Gross Combined Weight Rating. The manufacturers maximum load weight, in pounds, allowed for the trailer and tow vehicle. This rating includes the weight of the trailer, tow vehicle, fuel, water, propane, supplies and passengers.
The maximum allowable weight of the combination of tow vehicle and trailer/ fifth-wheel, or motorhome and dinghy. It includes the weight of the vehicle, trailer/fifth-wheel (or dinghy), cargo, passengers and a full load of fluids (fresh water, propane, fuel, etc.).