Revisions to a key emissions model for sustainable aviation fuel feedstocks will be ready “in the very near future,” said U.S. Environmental Protection Agency Administrator Michael Regan in Philadelphia on Friday.
The Biden administration pledged last year to update how the Department of Energy’s Greenhouse Gases, Regulated Emissions and Energy Use in Technologies (GREET) model measures emissions from agricultural practices used by farmers producing biofuel feedstocks.
The revisions were delayed from an initial March 1 timeline after disputes among agencies about the changes, sources told Reuters at the time.
