GCWR

Definition

GCWR - Gross Combination Weight Rating - is the manufacturer-specified maximum operating weight of a power unit and its towed unit combined. Used to determine whether a Class A CDL is required: per 49 CFR §383.5, a Class A CDL is required when GCWR is 26,001 lbs or higher and the towed unit alone is over 10,000 lbs. GCWR is a manufacturer rating, not the actual loaded weight. The rating is stamped on the vehicle's federal certification label. Power units rated under 26,001 GCWR can still be used for combination towing of trailers under 10,000 lbs without a Class A CDL.