EPA provides update and Federal Register notice on expiration/extension process for TSCA Confidential Business Information (CBI) claims expiring starting June 2026

EPA published an update and accompanying Federal Register notice describing how it will implement expiration and extension procedures for TSCA CBI claims. EPA stated it will post lists of submissions with expiring CBI claims (first list in early spring 2026) and notify submitters via CDX; companies seeking to extend CBI protection must submit extension requests through CDX no later than 30 days before the claim expiration date with required substantiation. If no timely extension request is received, EPA may no longer be required to safeguard the information. Compliance teams should inventory TSCA submissions with CBI claims approaching the 10-year expiration window and prepare substantiations and CDX processes to file extension requests on time.