Gross Combination Weight Rating; Definition

Summary: The FMCSA proposes to revise the definition of ``gross combination weight rating'' (or GCWR) to clarify that a GCWR is the greater of: the GCWR specified by the manufacturer of the power unit, if displayed on the Federal Motor Vehicle Safety Standard (FMVSS) certification label required by the National Highway Traffic Safety Administration (NHTSA), or the sum of the gross vehicle weight ratings (GVWRs) or gross vehicle weights (GVWs) of the power unit and towed unit(s), or any combination thereof, that produces the highest value.