The IRS has issued more guidance on the new Sustainable Aviation Fuel credit. The SAF credit applies to qualified fuel mixtures containing sustainable aviation fuel for certain sales or uses in calendar years 2023 and 2024. (IR 2023-240, 12/15/2023; Notice 2024-6, 2024-2 IRB) Sustainable Aviation Fuel Credit. The Sustainable Aviation Fuel Credit (SAF) was part of