News Details

On July 23, 2026, the U.S. Environmental Protection Agency (EPA) issued a final rule extending certain compliance deadlines under the Toxic Substances Control Act (TSCA) risk management rules for perchloroethylene (PCE) and carbon tetrachloride (CTC). According to EPA the revised timelines are intended to ensure that required worker protection measures are implemented, maintained, and used effectively, without reducing the level of protection required under the existing regulations.

Revised Compliance Timeline

The final rule extends selected compliance deadlines, including those related to workplace information and training plans for both PCE and CTC. These requirements have been aligned with the corresponding Workplace Chemical Protection Program compliance dates to help ensure that workers receive training after the necessary protective measures have been implemented. The tables below summarize the main compliance deadline changes for PCE and CTC.

Perchloroethylene (PCE) 

Carbon Tetrachloride (CTC) 

*Includes compliance with the Existing Chemical Exposure Limit (ECEL), establishment of regulated areas, respiratory protection, and other requirements under the Workplace Chemical Protection Program (WCPP).

Regulatory Significance

EPA reaffirmed that PCE and CTC continue to present an unreasonable risk to human health, and the agency's risk determination remains unchanged. The revised compliance dates are intended to support the effective implementation of worker protection measures while EPA continues its reconsideration of the 2024 final rules. The agency also plans to publish proposed amendments to these rules later in 2026.