
EPA Flags Unreasonable Risk from D4 in Industrial and Environmental Use
EPA draft risk evaluation finds octamethylcyclotetrasiloxane (D4) poses significant risks to workers and aquatic life, signalling regulatory change for industry.


As the U.S. prepares for the incoming Trump administration, a recent Congressional hearing on the Lautenberg Chemical Safety Act raised alarms about potential deregulation and the prioritisation of corporate interests over public health. Lawmakers, public health advocates, and industry leaders assessed the Environmental Protection Agency’s (EPA) implementation of the Act, highlighting the need to protect its integrity amid fears of a rollback of critical safety standards.
Passed in 2016, the Lautenberg Chemical Safety Act modernised the outdated Toxic Substances Control Act (TSCA), empowering the EPA to regulate hazardous chemicals like asbestos, methylene chloride, and trichloroethylene. These substances, linked to cancer and other severe health risks, had long been underregulated.
Dr. Maria Doa, Senior Director of Chemical Policy at the Environmental Defense Fund, lauded the Act for its transformative impact:
“The Lautenberg Act transformed what was once a largely ineffective law into one that set a clear directive to protect human health and the environment.”
However, lawmakers expressed concerns that the incoming administration could undermine this progress by focusing on deregulation and weakening EPA enforcement.
Ranking Member Frank Pallone voiced his apprehension, stating:
“The Trump administration has already shown itself to be more interested in special corporate interests than the health of American families, workers, and communities.”
This sentiment was echoed by public health advocates who stressed the importance of preserving the Lautenberg Act’s provisions to prevent hazardous chemicals from entering American homes and workplaces.
The hearing also highlighted ongoing delays in EPA chemical reviews. A Government Accountability Office (GAO) report revealed that 90% of pre-manufactured chemical reviews missed statutory deadlines between 2017 and 2022, hindering the rollout of potentially safer chemicals.
While industry leaders called for process reforms, they warned against losing the foundational protections established by the Act. Christopher John, President of the American Chemistry Council, stated:
“Delays and uncertainty make it more likely that manufacturers will bring products to market overseas, jeopardizing U.S. competitiveness.”
Advocates like Dr. Doa emphasised the importance of the EPA maintaining rigorous oversight, particularly for communities disproportionately affected by toxic exposure. She urged vigilance, warning against introducing new carcinogens to the market under a more lenient regulatory framework.
The Trump administration’s approach to environmental and chemical safety regulations remains uncertain, but lawmakers stressed the need to protect the Act’s bipartisan foundation. The Lautenberg Act represents a critical balance between fostering innovation and safeguarding public health.
Chairman Morgan Griffith remarked:
“A healthy nation, a secure nation, an economically vibrant nation relies on chemistry.”
However, achieving this vision requires the EPA to overcome resource constraints and ensure timely and consistent chemical reviews.
As the Trump administration begins, public health advocates, lawmakers, and industry leaders agree on the need to uphold the Lautenberg Act’s integrity. While streamlining regulatory processes is essential, any rollback of safety standards could risk undoing years of progress in protecting vulnerable communities and fostering trust in chemical safety.
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