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==Gross weight ratings==
==={{anchor|GVW|GVWR|GCWR|Gross}} Gross vehicle weight rating===
{{Redirect|GVW|the defunct airport|Grandview Airport}}
The gross vehicle weight rating (GVWR), or gross vehicle mass (GVM), is the maximum operating weight/mass of a vehicle as specified by the manufacturer<ref name=49CFR571.3>{{Cite web |url= http://edocket.access.gpo.gov/cfr_2004/octqtr/pdf/49cfr571.3.pdf/ |title= Code of Federal Regulations, Title 49, Section 571.3 Definitions |location=USA |access-date= 3 March 2012}}</ref> including the vehicle's chassis, body, engine, engine fluids, fuel, accessories, driver, passengers and cargo but excluding that of any [[Trailer (vehicle)|trailer]]s.<ref name="NHTSA">{{Cite web |url=http://www.nhtsa.gov/cars/problems/equipment/towing/ |title= Towing a Trailer – Being Equipped for Safety |publisher= National Highway Traffic Safety Administration |location=USA |access-date= 12 January 2010}}</ref>
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====Maximum weight laws====
In the EU and U.S. legal maximum load restrictions are placed on weight, independent of the manufacturer's rating. In the EU a tractor can generally have {{convert|10|tonne|lb}} on a single axle, with suspension type and number of tires often allowing slightly higher loads. In the U.S. weight restrictions are generally {{convert|20000|lb|kg}} on a single axle, and {{convert|34000|lb|kg}} (less than two single axles) on a tandem. The primary factor is distance between axle centerlines, also used to measure [[Federal Bridge Gross Weight Formula|bridge formulas]]. A bridge formula does not reduce axle load allowance, rather gross vehicle weight (GVW), which can affect load distribution and actual axle weights.<ref name=eusize>{{cite web|url=http://www.rsa.ie/Documents/Vehicle%20Std%20Leg/Vehicle%20regs/Weights_Dimensions_Leaflet.pdf|title=Guidelines on Maximum Weights…Criteria (EU)|publisher=Road Safety Authority|date=2013|access-date=25 June 2013}}</ref><ref name=usdotbridge>{{cite web|url=
==References==
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