The EPA is busy with renewable fuel issues. It is reviewing comments on the proposed volume obligations for 2019, which will be finalized by 30 November, and considering a year-round waiver for E15 that it is expected to propose, perhaps before the 2018 elections. The agency is also dealing with industry backlash over the granting of small refinery waivers. There are more issues, however, looming over the Renewable Fuel Standard (RFS). Below is a look at some of the outstanding matters facing the EPA and what might bounce to Congress for its intervention. 2016 Shortfall Regarding the combined volume obligations for 2014, 2015 and 2016, the EPA retroactively set the residual ethanol mandate at the actual usage in 2014 and 2015, but it use...