Biofuels producers urge changes to RFS rule to boost aviation fuel

Source: By Stuart Parker, Inside EPA • Posted: Wednesday, May 18, 2022

Biofuels producers, airlines and others are urging changes to EPA’s proposed renewable fuel standard (RFS) rules to provide more flexibility to produce sustainable aviation fuel (SAF) that is the cornerstone of a Biden administration strategy to reduce carbon emissions from aircraft, warning that without such action the strategy will falter. Several signatories to the letter, SAF producers LanzaJet, LanzaTech and United Airlines, and RFA, met with OMB officials recently to offer input on the forthcoming final RFS rules.
One source with RFA says the group shares several of the concerns expressed in the coalition letter, even as it supports the general drive to increase SAF production. RFA in prior public comments has also focused in particular on the possibility of using ethanol as a feedstock for SAF. “RFA opposes the limits on biointermediate transfers when the biointermediate is undenatured ethanol,” the group says. The proposal initially lists biocrude, free fatty acid (FFA) feedstock, and undenatured ethanol as “biointermediates,” but EPA invited comment on crafting a longer list.