To promote the increased utilization of domestically produced, renewable, biobased motor vehicle fuel supplies and the increased manufacture of flexible-fuel vehicles in the United States, and for other purposes.

Bioenergy Innovation, Optional Fuel Utilization, and Energy Legacy (BIOFUEL) Act of 2006 - Amends the Clean Air Act to revise the schedule for the volume of renewable fuels, the volume for cellulosic biomass, and the volume of biodiesel. Amends federal transportation law to require manufacturers of new dual fueled automobiles to ensure that the percentage of the total of such...