The American Clean Energy and Security (ACES) Act allocates funding to produce the next generation of clean, fuel-efficient vehicles in the United States, and when combined with clean vehicle performance standards adopted by the Obama administration, the American on-road fleet will become about 25% more fuel efficient over the next decade.

As a result, by 2020, Americans will drive more efficient vehicles and have lower household transportation costs. Even in the face of rising gasoline prices, cleaner vehicles will save money by sipping instead of guzzling gasoline.

For detailed methodology and explanations, and a printable map, click here.