(Photo by Drew Angerer/Getty Images) Numerous elected officials and energy sector experts have sharply criticized the Biden administration's latest air quality regulation. The Environmental Protection Agency (EPA) finalized its update to the National Ambient Air Quality Standards (NAAQS) for particulate matter (PM2.5), introducing strict restrictions despite warnings from industrial executives that tightened NAAQS could severely impact America's industrial sector. Critics of the EPA's decision to tighten the NAAQS say that the move is based on questionable science and that it will hurt the economy more than the agency lets on, among other outcomes. The agency is reducing the annual PM2.5 standard from 12 micrograms per cubic meter to 9 micrograms per cubic matter, or by about 25%. More than 70 industrial executives and trade groups wrote an October 2023 letter to White House Chief of Staff Jeff Zients warning that tightened PM2.5 NAAQS could seriously undermine America'