U.S. Department of Energy Energy Efficiency and Renewable Energy
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Exactly How Big is Class 8? Understanding Vehicle Classifications

A chart visually showing the specific vehicle weight classes set by three federal agencies.

See how vehicle weight classifications determine laws, regulations, and incentives for your fleet.


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April 20, 2016


Vehicle Energy Data Resources Help Inform Local Leaders

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City-specific data and tools are available online to help municipalities develop effective GHG-reducing programs.

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April 18, 2016


State Legislators Were Busy in 2015: Laws and Incentives Year in Review

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See which incentives, laws, and regulations were enacted last year.


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January 20, 2016


2014 State Alternative Fuels Law and Incentive Trends

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Learn how state actions across all alternative fuel types in 2014 involved new tax-related incentives and fuel tax regulations.

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February 23, 2015


Vetting Aftermarket Systems and Devices

A photo a man in glasses standing over the open hood of a car with a natural gas engine.

Learn how to tell if an alt. fuel conversion system or aftermarket device has been certified to reduce emissions or improve fuel economy.

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November 24, 2014


EPAct State and Alternative Fuel Provider Credit Allocations Update

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Learn about new credit allocations under DOE's Alt Fuel Transportation Program.

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September 18, 2014