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The maximum GVWR of the vehicle is the sum of the GAWRs. A truck with an 8,000-pound front GAWR and a 20,000-pound rear GAWR with have a GVWR of 28,000 pounds. The GVWR of a truck may be set lower than the total of the axle ratings to meet legal requirements. The maximum a heavy truck can weigh without special permits on U.S. highways is 80,000 pounds. In most states, a truck over 26,000 pounds requires a commercial driver's license. All trucks will have a placard or sticker listing the GVWR and front and rear GAWRs. The placard is usually in the door frame or just inside the cab.
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