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

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

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April 20, 2015


National Parks, Clean Cities Move Forward on Sustainable Transportation Projects

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See which new national parks will partner with the Clean Cities Initiative or expand existing projects.

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March 26, 2015


Back to Basics: Understanding Emissions — and How to Talk About Them

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Learn about the resources available to help you become an emissions expert.

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March 23, 2015


Help Us Formulate the Clean Cities Strategy!

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Provide your input on a new Clean Cities program five-year strategic plan.

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February 26, 2015


Save on Winter Fuel Costs

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Get tips on controlling the cost of driving in cold weather conditions.

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February 5, 2015


Clean Cities Coalition Brings Anti-Idling Program to Schools

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Learn how one coalition is increasing awareness and clarifying misconceptions about the effects of idling.


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January 21, 2015