Maps and Data - Vehicle Weight Classes & Categories
Find maps and charts showing transportation data and trends related to alternative fuels and vehicles.
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Laws & Incentives
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Natural Gas Laws and Incentives by State
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Propane Laws and Incentives by State
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Renewable Diesel Laws and Incentives by State
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Clean Cities and Communities
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Clean Cities Coalition Locations
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Clean Cities Project Awards and Matching Funds
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Clean Cities and Communities: Vehicles
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Clean Cities Alternative Fuel Vehicle Inventory
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Clean Cities Energy Use Impact by Alternative Fuel Vehicle Type
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Clean Cities and Communities: Energy Use Impact
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Clean Cities Annual Energy Use Impact
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Clean Cities Cumulative Energy Use Impact
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Clean Cities Energy Use Impact by Alternative Fuel Vehicle Type
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Clean Cities Energy Use Impact by VMT Reduction and Fuel Economy
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Clean Cities Energy Use Impact through Idle Reduction
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Regulated Fleets: State & Alt Fuel Providers
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AFV Acquisitions by Regulated Fleets (by Fleet Type)
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AFV Acquisitions by Regulated Fleets (by Fuel Type)
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Annual Vehicle Credits Earned and Used by Regulated Fleets
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Biodiesel Purchases by EPAct-Regulated Fleets
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EPAct State & Alternative Fuel Provider Fleet Exemptions
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Vehicle Credits Traded by Regulated Fleets
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Regulated Fleets: Federal Fleets
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AFV Requirements, Acquisitions, and Credits for Federal Agencies
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Vehicle Weight Classes & Categories
These charts illustrate the vehicle weight classes and categories used by the Federal Highway Administration (FHWA), the U.S. Census Bureau, and the U.S. Environmental Protection Agency (EPA). The vehicle weight classes are defined by FHWA and are used consistently throughout the industry. These classes, 1-8, are based on gross vehicle weight rating (GVWR), the maximum weight of the vehicle, as specified by the manufacturer. GVWR includes total vehicle weight plus fluids, passengers, and cargo. FHWA categorizes vehicles as Light Duty (Class 1-2), Medium Duty (Class 3-6), and Heavy Duty (Class 7-8). EPA defines vehicle categories, also by GVWR, for the purposes of emissions and fuel economy certification. EPA classifies vehicles as Light Duty (GVWR < 8,500 lb) or Heavy Duty (GVWR > 8,501 lb). Within the Heavy-Duty class, there is a Medium Heavy Duty Diesel Engine class for engine-only certification, but no Medium-Duty Vehicle class. The September 2011 U.S. Department of Transportation (DOT)/EPA rulemaking on Greenhouse Gas Emissions Standards and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles uses categories and weights for Heavy-Duty Vehicle Classes 2b through 8, similar to the FHWA weight classes.
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