On January 6, 2026, the U.S. Environmental Protection Agency (EPA) published a notice explaining how it will handle the expiration and potential extension of Confidential Business Information (CBI) claims submitted under the Toxic Substances Control Act (TSCA). These CBI claims protect certain business-sensitive information from public disclosure. Under TSCA Section 14(e), most non-exempt CBI claims expire 10 years after they are submitted. Because the amended TSCA (via the Frank R. Lautenberg Chemical Safety for the 21st Century Act) took effect in June 2016, the first group of claims will begin to expire in June 2026.

EPA outlined its intended implementation process, including how it will notify companies of approaching expirations—through public lists on the EPA TSCA CBI website and direct notices via the Central Data Exchange (CDX) system—and how companies can request an extension. To extend protection for up to an additional ten years, companies must file a substantiated request electronically through CDX at least 30 days before the claim expires. If no timely extension is requested, EPA is no longer required to keep the claimed information confidential, and it may become public.

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Environmental Protection Agency (EPA); Confidential Business Information (CBI); Toxic Substances Control Act (TSCA); Chemical Safety; Central Data Exchange (CDX)