![]() Three-axle trucks pulling two-axle trailers Three-axle tractors pulling two-axle trailers Two-axle tractors pulling three-axle trailers Three-axle tractors pulling one-axle trailers Two-axle tractors pulling one- and two-axle trailers Two-axle trucks pulling one- and two-axle trailers Pick-ups and vans with one- and two- axle trailersįour-, five-, six- and seven-axle single-unit trucks ![]() Other two-axle four-tire single-unit vehicles and over )ĭeveloped in the 1980s, the Federal Highway Administration 13-category classification rule set is currently used for most federal reporting requirements and that serves as the basis for most state vehicle classification systems. Unlike the EPA, which groups automobiles by interior volume, the NHTSA groups cars for NCAP testing by weight class. All automobiles with GVWR less than or equal to 8,500 pounds and all medium-duty passenger vehicles which possess special features and which the administrator determines are more appropriately classified separately from typical automobiles. For a product line with more than one GVWR, the characteristic GVWR value for the product line is established by calculating the arithmetic average of all distinct GVWR values less than or equal to 8,500 pounds available for that product line. Pickup trucks and SUVs are separated by car line on the basis of gross vehicle weight rating (GVWR). Starting in the 2013 model year, SUVs are divided between small sport utility vehicles and standard sport utility vehicles. The administrator classifies light trucks (nonpassenger automobiles) into the following classes: Small pickup trucks, standard pickup trucks, vans, minivans, and SUVs. Trucks classes are defined by gross vehicle weight rating (GVWR). Fuel Economy Guide for station wagons Class Interior combined passenger and cargo volume index Passenger car classes are defined based on interior volume index (the combined passenger and cargo volume) and are as follows. This information is repeated in the Fuel Economy Guide. EPA ĮPA size classes are defined in Federal Regulation, Title 40-Protection of Environment, Section 600.315-08 "Classes of comparable automobiles". The Insurance Institute for Highway Safety also has its own vehicle classification system that is used by most vehicle insurance companies in the U.S. Vehicle classifications of four government agencies are in use in the United States: the United States Environmental Protection Agency (EPA), the National Highway Traffic Safety Administration (NHTSA as part of their NCAP program), Federal Highway Administration (FHWA), and the U.S.
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