||16 billion gallons/year
||Renewable fuel derived from any cellulose, hemicellulose, or lignin
||– Ethanol produced from agricultural residues (corn stover, for instance), forest residues, food or municipal solid waste, perennial grasses, etc. Corn kernel fiber cellulosic ethanol was also recently approved by EPA.
||At least 1 billion gallons/year, set annually by EPA
||Biodiesel produced from vegetable oil or “a diesel fuel substitute produced from nonpetroleum renewable resources [including] animal wastes, including poultry fats and poultry wastes, and other waste materials, or municipal solid waste and sludges and oils derived from wastewater”
||– Biodiesel produced from soybeans, corn oil, other vegetable oil, animal fats, used cooking oil, etc. – Other diesel fuel substitutes produced from municipal solid waste, animal wastes, etc.
|“Other” advanced biofuels
||4 billion gallons/year
||Any other fuel that meets the definition of an “advanced biofuel”
||– Ethanol from non-corn feedstocks such as sugar – Butanol from renewable biomass (including butanol derived from corn, which was recently approved by EPA for a certain facility – Gevo – May also include biomass-based diesel (see above)