EPA publishes process update for expiring TSCA Confidential Business Information (CBI) claims beginning June 2026 (extension requests via CDX)

EPA published an update describing how it will notify submitters about TSCA CBI claims that will begin expiring starting June 2026 and how to maintain protection. EPA indicates it will (1) post public lists of submissions with expiring claims beginning in early spring 2026, (2) send direct notices via EPA’s Central Data Exchange (CDX), and (3) require companies seeking to maintain protection to submit an extension request (with substantiation) via CDX no later than 30 days before the claim’s expiration date. This affects companies relying on TSCA CBI protections and requires internal tracking of claim expiration dates and preparation of substantiation packages for timely extension requests.