With the federal government now fully reopened (at least until 15 February) and the EPA likely to soon have a full-time administrator (the Senate Environment and Public Works Committee confirmation hearing on Acting Administrator Andrew Wheeler is 5 February), there are two important rulemakings under the Renewable Fuel Standard (RFS) back underway. The first is the approval of year-round use of E15, which is fuel blended with 10.5-15 percent ethanol, and the second is the reset of the statutory volumes of biofuels. Under the statute, after 2016 the EPA is required to modify the applicable volumes of the RFS in future years if the administrator had waived the renewable fuel, advanced biofuel, cellulosic biofuel or biomass-based diesel mand...