Trump Administration Reverses Course on Cancer-Causing Chemical Regulations
The Trump administration is moving to roll back regulations limiting emissions of ethylene oxide, a chemical compound linked to several types of cancer. This decision, announced on Friday, March 13, 2026, reverses a 2024 EPA rule designed to reduce exposure to the dangerous air pollutant, citing concerns about the impact on the medical supply chain. The move is expected to benefit manufacturers who utilize ethylene oxide for sterilizing medical equipment.
What is Ethylene Oxide and Why is it a Concern?
Ethylene oxide (EtO) is a colorless gas used to sterilize approximately 50% of medical devices in the United States, particularly those that cannot withstand the high temperatures of steam sterilization or the use of radiation . While crucial for ensuring the sterility of equipment like pacemakers and catheters, EtO is a known carcinogen, linked to cancers of the breast and lymph nodes . Exposure can also cause respiratory irritation, nausea, blurred vision, and headaches .
The 2024 EPA Rule and Subsequent Rollback
In 2024, the Environmental Protection Agency (EPA) implemented stricter emission standards for commercial sterilization facilities using ethylene oxide. This rule, developed eight years after the EPA determined ethylene oxide was 60 times more toxic than previously realized, required facilities to significantly reduce emissions, install improved control equipment, and enhance monitoring . Prior to the rollback, the EPA had already granted legally questionable compliance exemptions to 39 sterilization facilities .
The current proposal aims to repeal these standards, with the EPA arguing that doing so will “safeguard the supply of essential medical equipment” and save companies approximately $630 million over 20 years . Administrator Lee Zeldin stated the administration is committed to ensuring access to life-saving medical devices .
Concerns and Criticisms
The rollback has drawn criticism from public health advocates and scientists. Tracey Woodruff, a professor at Stanford University, argues the decision prioritizes manufacturer profits over public health . Opponents contend that companies could comply with the stricter rules using existing technology and that the public is not at risk of losing access to sterilized equipment.
According to analysis by the Union of Concerned Scientists, nearly 14 million people in the United States live within five miles of a commercial sterilization facility, and over 10,000 schools and childcare facilities are located in these areas . These communities are disproportionately comprised of people of color and non-English speakers .
Broader Implications
The EPA’s re-evaluation of ethylene oxide’s carcinogenic potency could have wider implications, potentially affecting regulations in other industrial sectors that also utilize the chemical. The agency had previously received requests for exemptions from Clean Air Act provisions, including those related to ethylene oxide emissions .