GVWR, GAWR, GCWR, CCC - What Do all those Acronyms Mean?
A real quote on a real blog posted just the other day: “After loading up I think my RV was probably over its weight limit, but luckily no-one ever checks.” (no, I’m not going to post who wrote this)
Terry says, on one of the Escapees Forums, “I was reading something yesterday that stated 70% of RV’s are over weight.”
And Mark replies: “I think that statistic is from RVSEF… They are the ones who do the “Aweigh we Go” RV weighing booths at many of the rallies. I believe that their data, collected at the seminars and weigh-ins, indicates that significantly better than half of all RVs are found to be exceeding either axle, wheel or GVWR ratings, many by a substantial amount.”
Brakes, weights, tow vehicles, tire capacity…lots to understand, and here’s a start:
GVWR: Gross Vehicle Weight Rating
The MAXIMUM ALLOWABLE WEIGHT of the fully loaded vehicle, including liquids, passengers, cargo, and the tongue weight of any towed vehicle.
GAWR: Gross Axle Weight Rating
The MAXIMUM ALLOWABLE WEIGHT each axle assembly is designed to carry, as measured at the tires, therefore including the weight of the axle assembly itself. GAWR is established by considering the rating of each of its components (tires, wheels, springs, axle), and rating the axle on its weakest link. The GAWR assumes that the LOAD IS EQUAL ON EACH SIDE.
GCWR: Gross Combination Weight Rating
The MAXIMUM ALLOWABLE COMBINED WEIGHT of the tow vehicle and the attached towed vehicle. GCWR assumes that both vehicles have functioning brakes, with exceptions in some cases for very light towed vehicles, normally less than 1,500 pounds. (Check your chassis manual or towing guide.)
CCC: Cargo Carrying Capacity
Equal to GVWR minus each of the following: UVW (full fresh potable) water weight (including water heater), full LP gas weight, and SCWR.
The whole list of these confusing acronyms are listed at RV Safety Education Foundation, (RVSEF) in the Definition of Terms Section, which produces RV safety courses, RV weighing and wheel-weight analysis.
