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

Maps and Data

Find maps and charts showing transportation data and trends related to alternative fuels and vehicles.

Incentive Additions by Policy Type

2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
Exemptions 4 3 5 5 7 6 9 12 12 13
Fuel Discounts 3 1 [object Object] [object Object] [object Object]
Grants 2 4 6 7 24 23 14 12 8 10
HOV Access 1 3 1 1 1 [object Object] [object Object] [object Object]
Loans 3 2 6 7 1 [object Object] 5 9
Rebates 3 3 1 3 10 6 2 5 5 14
Tax Incentives 9 8 16 19 19 24 14 14 16 14
Tech. Assistance 13 1 1 1 2 [object Object] [object Object] [object Object]
Other 0 0 0 0 0 0 0 8 31 22
Source: National Renewable Energy Laboratory
Notes: Additions mean any incentive or law that were added to the AFDC, which is usually the same year that they were enacted or brought into force. This count includes legislation that has since expired.

Because a regulation may apply to more than one technology type, adding the totals for each row results in counting some regulations multiple times.

Beginning in 2009, fuel discounts, HOV access, loans, and technical assistance were grouped into the "Other" category.

This chart shows trends in enactments of incentives related to alternative fuels and advanced vehicles according to the type of incentive, from 2002 to 2011. The dataset includes incentives enacted by any of the 50 states or the District of Columbia. Visit the Incentives and Laws page for information on federal and state incentives and laws.