EPA publishes process update for TSCA confidential business information (CBI) claim expirations beginning June 2026 (extension requests via CDX)

EPA published an implementation/process update describing how it will notify submitters about TSCA confidential business information (CBI) claims expiring starting June 2026 and how to request extensions. EPA indicates it will post lists of submissions with expiring claims (and send notices via CDX), and that extension requests must be submitted electronically via CDX no later than 30 days prior to the claim’s expiration, including substantiation. Compliance teams should inventory existing TSCA CBI claims, establish monitoring for EPA’s posted lists/notices, and prepare substantiated extension requests where ongoing confidentiality is needed.