1. Energy Independence and Security Act of 2007 (EISA). Public Law 110-140.Code of Federal Regulations, 2007.
2. United States Environmental Protection Agency (U.S. EPA), Regulatory Announcement: EPA Finalizes 2013 Renewable Fuel Standards; EPA-420-F-13-042; 2013.
3. United States Environmental Protection Agency (U.S. EPA), Regulatory Announcement: EPA Proposes 2014 Renewable Fuel Standards, 2015 Biomass-Based Diesel Volume; EPA-420-F-13-048; 2013.
4. Food Versus Biofuels: Environmental and Economic Costs