U.S. Department of Energy Energy Efficiency and Renewable Energy
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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.

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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.

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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.


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December 8, 2014


Be Prepared with Alternative Fuels

A close-up photo of a compressed natural gas truck with a white Clean Cities sticker refueling at a CNG station.

During National Preparedness Month, be ready for the worst situation, even if you’re hoping for the best.

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September 26, 2014


State Alternative Fuel and Advanced Vehicle Laws and Incentives: 2013 Year in Review

Chart of 2013 laws and incentives

In 2013, state legislatures and agencies created a number of incentives, laws, and regulations that support alternative transportation.

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January 10, 2014


States Stay Ahead of the Curve With Plug-In Electric Vehicles

Photo of plug-in electric vehicles charging

As the next generation of plug-in electric vehicles hit the market, states face new questions about how to regulate and promote their use.

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November 19, 2013