EPA publishes process update and Federal Register notice on expiring TSCA CBI claims beginning June 2026 (extensions via CDX required)

EPA announced (and published a Federal Register notice describing) the process it will use to notify submitters of upcoming TSCA confidential business information (CBI) claim expirations (generally 10 years after submission, under the 2016 TSCA amendments). EPA states the first expirations will begin in June 2026 and that it will post public lists of TSCA submissions with expiring claims (starting in spring 2026) and send direct notices via EPA’s Central Data Exchange (CDX). To maintain confidentiality, companies must submit an extension request through CDX with required substantiation no later than 30 days before the claim’s expiration date. Compliance teams should inventory TSCA submissions with CBI claims, ensure CDX access/roles are in place, and prepare substantiation workflows ahead of the spring 2026 public list postings.