U.S. Department of Energy Energy Efficiency and Renewable Energy
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Alt Fuels are Taxed the Same? Think Again!

A photo of sign advertising the availability of various alternative fuels.

Learn how highway excise taxes based on volume, not energy content, result in significant inequity among fuels.


September 22, 2015

As Returns from Gas and Diesel Taxes Decline, States Look to Alternative Models

Photo of a one-hundred dollar bill sticking out of a fuel receptacle on a red car.

Read about how states are trying new methods to make up for shortfalls in traditional motor fuel taxes.


August 12, 2015

State-Specific Fuel and Vehicle Data at Your Fingertips

A screenshot of the new AFDC website State Information pages with videos, graphs, and data sets.

See the new data sets available about transportation and vehicles in your state.


May 20, 2015

How Heavy is Too Heavy? Idle Reduction Equipment Impacts Weight Limit Restrictions

Photo of a red semi-truck driving on a highway surrounded by forest.

Learn how idle reduction technologies affect interstate weight-limit restrictions for heavy-duty vehicles.


April 20, 2015

2014 State Alternative Fuels Law and Incentive Trends

Photo of a white capitol building with a sign that says "State" and an American flag flying in the background.

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


February 23, 2015

Pete Polubiatko: A Clean Cities Constant Retires

A headshot of Pete Polubiatko, a man in a suit with brown hair.

After 20 years, the second longest-serving coordinator in the program's history leaves the helm.


December 8, 2014