As EPA develops a rule scrapping the Biden EPA’s tougher fine particulate matter (PM2.5) standard, one industry lawyer warns that waiting too long to issue that rule might trigger the Clean Air Act’s safeguards against “backsliding” in air quality, in an unprecedented situation, although Congress may intercede and change the law first. Speaking during an Air and Waste Management Association (AWMA) event July 16, Lucinda Minton Langworthy, an attorney with Hunton Andrews Kurth, said she expects EPA to soon propose...