A Congressional Research Service report dated February 5, 2018 explains EPA's authority to waive Renewable Fuel Standard requirements in whole or part, including general, cellulosic and biomass-based diesel waivers. It also covers the statutory process for modifying applicable volumes.
Waiver authority determines whether RFS mandates can be cut, which directly affects ethanol and biodiesel demand for corn and soybean oil. This is background explainer material rather than a new decision.
After 439 past neutral policy events, Corn moved a median +0.1% over 5 sessions (51% higher; middle half -1.3% to +1.2%), and +1.1% over 20.
After 196 past neutral policy events, Soybean Oil moved a median +0.1% over 5 sessions (52% higher; middle half -1.6% to +2.0%), and -0.5% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.