Today, Taxpayers for Common Sense (TCS), National Taxpayers Union (NTU), R Street Institute, U.S. Public Interest Research Groups (PIRG), Environment America, and Friends of the Earth sent the following comments to the Environmental Protection Agency (EPA) on its proposal entitled “Renewable Fuel Standard (RFS) Program: Partial Waiver of 2024 Cellulosic Biofuel Volume Requirement and Extension of 2024 Compliance Deadline.”