Columbia’s Center on Global Energy Policy published a 2018 report, Reforming the Renewable Fuel Standard, which recommended sharply reducing the compliance costs of blending ethanol into E10; promoting sales of midlevel blends by removing regulatory roadblocks; and transforming the second-generation part of the RFS into a technology-pushing program that provides reliable, effective, and long-term support for nascent low-GHG renewable fuels, regardless of feedstock.