EPA Study Finds No Need To Mitigate Air Emission Increases Due To RFS

EPA in a new determination finds the renewable fuel standard (RFS) has a mixed impact on air quality but says there is no need for the agency to mitigate any emissions increases because its separate Tier 3 fuels and vehicles rule largely achieves the air pollution cuts that such mitigation would secure, and no additional air controls are available. The draft determination released May 29 draws on a study released the same day on potential RFS “backsliding” in air quality,...