EPA Asks D.C. Circuit To Vacate Biden-Era PM2.5 NAAQS As Unlawful

EPA is asking the D.C. Circuit to vacate the Biden EPA’s tougher fine particulate (PM2.5) federal air standard, seeking to convince some judges that the rule is unlawful after they declined to support such industry claims during oral argument last year that the prior administration did not conduct the “thorough review” the law requires. The request, in a Nov. 24 motion to the U.S. Court of Appeals for the District of Columbia Circuit in Commonwealth of Kentucky, et al. v....