Airlines for America (A4A) issued the following statement after the Department of Treasury’s release of guidance clarifying that an updated version of the “Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation” (GREET) model will be one of the acceptable methods for measuring lifecycle emissions to claim credit for the sustainable aviation fuels (SAF) Blenders Tax Credit:

“Today’s announcement is welcome news for the aviation sector, as it will help to accelerate the production and availability of SAF and stimulate new investment. The availability of multiple methods, including the GREET model, to measure lifecycle emissions is consistent with the Inflation Reduction Act legislation and ensures that credible and up-to-date lifecycle emissions measurements of a wide range of SAF pathways can be made.  We welcome the commitment to make the modified GREET model available by March 1, 2024, in order for it to be relied upon to claim the credit.”