A bill to require manufacturers to increase the percentage of automobiles manufactured for sale within the United States that are capable of operating on higher-level blends of renewable fuels, such as ethanol and biodiesel, in combination with gasoline or diesel fuel.

Requires each automobile manufacturer to ensure that at least 50% of 2011 and 2012 model year automobiles manufactured for sale in the United States are dual fueled automobiles. Increases the minimum to 90% for later model years. (Excludes automobiles that operate only on electricity.)