All Knowledge & Insights By Date

The U.S. Environmental Protection Agency (EPA) announced on November 10, 2025, that it will publish a final rule extending the compliance date for laboratories using methylene chloride to ensure long-term compliance with the requirements of the May 2024 final risk management rule. According to EPA, the final rule will extend the Workplace Chemical Protection Program (WCPP) compliance dates for non-federal laboratories by an additional 18 months, aligning them with the dates required for federal...

The U.S. Environmental Protection Agency (EPA) announced on October 9, 2025, that it is beginning a 30-day comment period on its 2024 final risk management rule for carbon tetrachloride (CTC). 90 Fed. Reg. 48203. As reported in our January 13, 2025, memorandum, EPA published the final rule on December 11, 2024. After the final rule was published, several legal challenges were filed and then consolidated in the U.S. Court of Appeals for the Eighth Circuit. EPA states that it “has since...

The U.S. Environmental Protection Agency (EPA) announced on July 30, 2025, that it seeks public comment to inform its reconsideration of the Toxic Substances Control Act (TSCA) regulation for perchloroethylene (PCE). 90 Fed. Reg. 35858. EPA notes that as promulgated in December 2024, the PCE risk management rule addresses the unreasonable risk of injury to health presented by PCE under its conditions of use (COU) by requiring various workplace exposure controls, prohibiting certain industrial...

On May 20, 2025, the U.S. Environmental Protection Agency (EPA) released a proposed rule that would extend certain compliance dates in the final risk management rule for methylene chloride under the Toxic Substances Control Act (TSCA) “to ensure long-term compliance with the rule’s requirements.” The proposed rule would extend the Workplace Chemical Protection Program (WCPP) compliance dates for non-federal laboratories by an additional 18 months to align with the dates allowed for federal...

On January 16, 2025, the U.S. Environmental Protection Agency (EPA) released a compliance guide to assist the regulated community in complying with Workplace Chemical Protection Program (WCPP) requirements for chemicals regulated under Section 6 of the Toxic Substances Control Act (TSCA). EPA states that a WCPP “is a chemical protection program designed to address unreasonable risk posed by chemical exposure to persons in occupational settings.” The compliance guide provides an overview of...

On June 14, 2024, the U.S. Environmental Protection Agency (EPA) issued a proposed rule under Section 6(a) of the Toxic Substances Control Act (TSCA) that would protect workers and consumers from exposure to N-methylpyrrolidone (NMP). 89 Fed. Reg. 51134. To address the identified unreasonable risk, EPA proposes to: prohibit the manufacture (including import), processing, distribution in commerce, and use of NMP in several occupational conditions of use (COU); require worker protections through...