EPA Federal Register notice details process for TSCA CBI claims expiring starting June 2026 (CDX notices, public lists, and extension requests)

EPA published a Federal Register notice and supporting EPA webpage describing the process for upcoming expirations of TSCA Confidential Business Information (CBI) claims beginning in June 2026. EPA indicates it will (1) post the first public list of TSCA submissions with CBI claims expiring starting in June 2026 (planned for early spring 2026) and (2) send direct notifications to affected submitters via CDX. To maintain protection, submitters must file an extension request via CDX with required substantiation no later than 30 days prior to the claim’s expiration date. EPA also states it is developing a new CDX tool to collect extension requests and expects it to be available before June 2026; if delayed, EPA will post an update on the TSCA CBI website. Compliance teams should inventory affected TSCA submissions, monitor EPA’s posted lists/notifications, and prepare substantiation packages to meet the 30‑day pre-expiration submission timing.