A Congressional Research Service report explains the EPA's authority to waive Renewable Fuel Standard volumes, including the general, cellulosic and biomass-based diesel waivers. It also covers the statutory process for modifying annual volumes.
Waiver authority gives EPA room to lower biofuel mandates, which would cut soybean oil demand from biodiesel. The report is background, so the price effect is limited unless a waiver is used.
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.