Ethylene Oxide

• On March 13, 2026, the EPA proposed repealing a 2024 Biden administration rule limiting ethylene oxide emissions from commercial sterilizer facilities, which sterilize about half of U.S. medical devices like heart valves and pacemakers. • The rule aimed to reduce cancer risks to nearby communities but is criticized for threatening domestic supply chains and relying on flawed risk models, per the Trump administration. • Ethylene oxide debate pits public health protections against medical supply reliability, with evidence suggesting alternative risk assessments like Texas models better match human data.

The Environmental Protection Agency proposed Friday to relax air pollution limits on ethylene oxide, a chemical classified as a human carcinogen since 2016 and used to sterilize medical equipment including catheters and syringes. The EPA stated that current Biden-era standards "actively threaten" manufacturers' abilities to sterilize equipment and jeopardize domestic medical device supply chains. Public health advocates, including the Alliance of Nurses for Healthy Environments, warned that people living near commercial sterilization facilities face elevated lifetime cancer risks, while medical device manufacturers argue the standards could disrupt critical supplies. The proposal marks the latest EPA action under President Donald Trump to relax pollution limits and reduce costs for industry.

The EPA proposed on March 13, 2026, to relax air pollution standards for ethylene oxide used in sterilizing medical devices like catheters and syringes, reversing Biden-era cancer risk findings. The agency cites threats to domestic supply chains for essential equipment. Industry leaders like Scott Whitaker of the Advanced Medical Technology Association praised the move for ensuring uninterrupted sterile supplies while protecting communities. The change aligns with broader Trump EPA efforts to cut industry costs, with public comments expected next.