EPA Proposes to Tighten Air Quality Standards for Particulate Matter

The U.S. Environmental Protection Agency (EPA)  has reconsidered the 2020 determination that retained the national ambient air quality standards (NAAQS) for particulate matter (PM) and has proposed to tighten the primary annual PM2.5 standard outside of the normal five-year framework for these changes. AGC closely monitors and weighs in on these rulemakings...