USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Gross Combination Weight Rating; Definition

Notice of Proposed Rulemaking (NPRM), request for comments.

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.

View PDF