Q35. How is the reporting of ethanol production and or biogenic emissions being handled in the rule?

Refineries that meet the definition of petroleum supplier must report any ethanol that is co-processed with petroleum in order to subtract biogenic emissions from the final calculation of emissions that would result from the complete combustion or oxidation of products supplied. CO₂ suppliers that supply biogenic CO₂ to the economy (such as ethanol plants with CO₂ capture equipment) must report that supply.A35.  Ethanol production facilities are not excluded from the rule. Ethanol production facilities must report if their combined emissions from any applicable source categories exceed the 25,000 metric tons CO2e threshold. Possible sources of greenhouse gas emissions at ethanol production facilities are expected to include stationary fuel combustion, onsite landfills, and onsite wastewater treatment.

Carbon dioxide emissions from the combustion of biomass are not counted toward a facility’s emissions in the threshold determination, but emissions of CH4 and N2O from biomass combustion are counted in the threshold determination. All biogenic emissions are to be reported separately under the rule.