The Environmental Protection Agency issued a new directive that threatens to weaken regulations governing hundreds of chemicals currently used in American manufacturing and commerce. The policy shift fundamentally alters how the EPA assesses chemical safety, potentially allowing products to remain on the market despite health and environmental concerns.

The directive changes the agency's evaluation standards for existing chemicals under the Toxic Substances Control Act. Rather than requiring manufacturers to prove their products are safe, the new approach reduces the burden of evidence needed to keep chemicals in use. This reversal affects substances already approved decades ago that lack modern safety data.

Environmental and public health advocates called the move "a huge setback" for protection efforts. The policy grants manufacturers greater leeway in chemical assessments and limits the EPA's authority to demand additional testing or impose restrictions.

The timing reflects broader regulatory changes within the Trump administration, which has prioritized reducing compliance costs for industry. The directive applies retroactively to ongoing chemical reviews and could delay or prevent future restrictions on hazardous substances.

Consumer and environmental groups have vowed to challenge the directive legally, arguing it violates the TSCA and abandons the agency's statutory obligations to protect public health.