EPA Issues Renewable Fuel Standards: What It Means for 1st and 2nd Generation Biofuels : Greentech Media

"Wednesday, the Environmental Protection Agency finalized its revision to the Renewable Fuel Standard (RFS) program. Under the Energy Independence and Security Act of 2007 (EISA), Congress created requirements for how much renewable fuel (corn ethanol, biomass-based diesel, cellulosic ethanol, and other 'advanced' fuels) must be blended in the nation's petroleum supply."