( March 13, 2026, 2:32 PM EDT) -- WASHINGTON, D.C. — The U.S. Environmental Protection Agency on March 13 announced it is proposing amendments to the 2024 National Emissions Standards for Hazardous Air Pollutants (NESHAP) for ethylene oxide (EtO), a chemical that is used in facilities that sterilize medical equipment, and which has been the subject of litigation over allegations that exposure to it causes cancer. The amendments would rescind standards under the Clean Air Act (CAA) and revise compliance requirements....