American Petroleum Institute v. EPA

The D.C. Circuit held that EPA's projection for cellulosic fuel production was unreasonable because "EPA's methodology for making its cellulosic biofuel projection did not take neutral aim at accuracy." The court said that Congress intended the Energy Independence and Security Act to drive the development of the cellulosic ethanol industry and that the statute required EPA to produce a projection that aims at accuracy. Because the projection was in excess of EPA's authority, the court vacated that aspect of the renewable fuel standard for 2012.