On March 20, 2024, EPA announced new emissions standards for light-duty and medium-duty vehicles, starting with model year (“MY”) 2027 and phasing in through MY 2032. The new standards require reductions in emissions of...more
On July 21, 2023, the Environmental Protection Agency published a final rule eliminating an affirmative defense for Clean Air Act permit emissions violations caused by “emergency” circumstances. “Major sources” (i.e....more