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.
EPA published an official process/timeline update for confidential business information (CBI) claims under TSCA that will begin expiring starting June 2026 (generally 10 years after submission). EPA explains it will post (in early spring) a first public list of submissions with expiring CBI claims, and will send direct notices via EPA’s CDX system. Companies seeking to maintain confidentiality must submit extension requests electronically via CDX no later than 30 days before the specific claim expiration date, including substantiation. This is operationally significant for TSCA compliance teams managing CBI portfolios and ensuring timely substantiation/extension workflows.
EPA released technical resources describing common/default values used in TSCA new chemical risk assessments (e.g., occupational exposure and environmental release assumptions). While not a binding rule, the defaults are operationally important for PMN/SNUN submitters because they can affect EPA’s exposure estimates and risk determinations and therefore the quality and predictability of submissions and any resulting risk management measures.
EPA announced the release of a public list of TSCA Confidential Business Information (CBI) claims scheduled to expire (initially covering claims expiring June 22, 2026 through July 31, 2026) and stated the list will be refreshed monthly. EPA also described the process for maintaining confidentiality by submitting an extension request and substantiation electronically via CDX no later than 30 days before the claim expires, including use of a new “TSCA Section 14(e) CBI Claim Extension Request” tool. Compliance teams should inventory TSCA submissions with CBI claims, confirm responsible CDX accounts/contacts, and prepare substantiation packages ahead of claim expiration dates to avoid loss of confidential status.
EPA published an implementation/process update describing how it will handle the first wave of TSCA CBI claim expirations beginning in June 2026 (reflecting TSCA’s 10-year sunset for many non-exempt CBI claims). EPA states it will (1) post lists (early spring) of TSCA submissions with CBI claims expiring starting June 2026 and (2) notify submitters via EPA’s Central Data Exchange (CDX). To maintain confidentiality, submitters must file CBI extension requests electronically via CDX no later than 30 days before the claim’s expiration and provide substantiation; otherwise EPA may disclose the information. EPA also indicates it is developing a new CDX tool for these extension requests and intends it to be ready before June 2026.
EPA issued an implementation/process update explaining how it will notify submitters of expiring TSCA Confidential Business Information (CBI) claims (generally expiring 10 years after submission), noting that expirations for claims submitted shortly after the 2016 TSCA amendments will begin in June 2026. EPA emphasized that companies seeking to maintain CBI protection must submit extension requests via CDX with substantiation no later than 30 days prior to the expiration date. Compliance teams should review internal TSCA submission inventories and set controls to ensure timely CDX extension filings to avoid loss of CBI protections.
EPA published an implementation/process update for Toxic Substances Control Act (TSCA) confidential business information (CBI) claims that will begin expiring starting June 2026 under TSCA §14(e). EPA indicates it will post public lists of TSCA submissions with expiring CBI claims (expected in early spring) and also send direct notifications via EPA’s Central Data Exchange (CDX). To maintain CBI protection, companies must submit an extension request electronically via CDX no later than 30 days before the claim expiration date and include substantiation. EPA also notes it is developing a new CDX tool to support extension requests ahead of the June 2026 expiration wave. Compliance teams should identify TSCA submissions with expiring claims (including via TSCA Inventory resources) and prepare substantiation and CDX workflows to avoid inadvertent public disclosure.
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.
EPA issued a Federal Register notice compiling TSCA Section 5 statements of findings for certain new chemicals or significant new uses covering July 2025 through September 2025. This notice provides transparency on EPA determinations for PMNs/SNUNs/MCANs and can be used by compliance teams to monitor trends in EPA findings and potential consent order/SNUR patterns affecting future submissions.
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.
EPA announced the process the agency intends to use to notify companies of upcoming expiring confidential business information (CBI) claims under TSCA and how companies can request an extension of expiring CBI claims. The 2016 TSCA amendments included a ten-year cap on many CBI claims, which will begin to expire on a rolling basis in June 2026 unless further reasserted and re-substantiated with EPA-approved extension requests.
EPA published an update describing how it will implement TSCA’s 10-year expiration of most confidential business information (CBI) claims and how submitters can request extensions. EPA states the first CBI claims will begin expiring in June 2026. EPA plans to post (in early spring 2026) a public list of TSCA submissions with CBI claims expiring starting June 2026 and to send direct notices via EPA’s Central Data Exchange (CDX). To maintain confidentiality, submitters must file an extension request via CDX no later than 30 days before the claim’s expiration date and provide substantiation. Compliance teams should identify TSCA submissions with CBI claims approaching the 10-year mark, prepare substantiation materials, and ensure CDX access/workflows are in place to meet the “30 days before expiration” timing described by EPA.
EPA released a proposal to increase efficiency in TSCA chemical reviews. Key revisions include: procedures for revising or supplementing risk evaluation documents to meet statutory deadlines; adjustments to information collection obligations for manufacturers requesting agency-conducted TSCA risk evaluations; and improvements to accountability in conducting risk evaluations. The proposal has a 45-day comment period in docket EPA-HQ-OPPT-2025-0260.
EPA completed the final risk evaluation for 1,3-Butadiene (CAS 106-99-0) under TSCA in December 2025. The risk evaluation determines whether the chemical presents unreasonable risk to health or the environment under its conditions of use, which will inform potential risk management actions under TSCA Section 6.
EPA released an updated draft Risk Calculation Memorandum for formaldehyde under TSCA and opened a 60-day public comment period (noted as open until February 2, 2026). This is a technical support/analytical document that can influence how EPA quantifies and characterizes risk in the formaldehyde TSCA risk evaluation, which in turn can affect downstream risk management decisions and stakeholder engagement strategies. Compliance teams should review the draft methodology and submit comments if assumptions, exposure parameters, or calculation approaches affect their uses or conditions of use.
EPA released an updated draft risk calculation memorandum and supporting documents for formaldehyde under TSCA and opened a 60-day public comment period (stated to run until February 2, 2026) via the TSCA docket on Regulations.gov. Compliance teams following TSCA risk evaluation work should review the draft methodology/assumptions and consider submitting comments, as approaches in the memorandum can influence downstream TSCA risk evaluation conclusions and potential risk management actions.
EPA published the key default values used in its risk assessments for new chemicals (TSCA section 5 reviews). This transparency update can affect how submitters and compliance teams prepare PMNs, exemption submissions, and supporting exposure/hazard arguments because EPA’s default assumptions influence risk determinations and potential TSCA orders/SNUR conditions. Companies should align dossiers and internal modeling with EPA’s published defaults and document any proposed alternative values with supporting rationale.
EPA published the key 'default values' (assumptions) used in its risk assessments of new chemicals under TSCA. These default values are assumptions used by EPA in environmental release and occupational exposure assessments. The agency made these assumptions available on its website in the New Chemicals Division Reference Library. This transparency initiative enables manufacturers and submitters to better understand how EPA conducts risk assessments and to prepare more informed submissions.
EPA posted an update stating it intends to reconsider the December 13, 2024 final TSCA Section 8(d) rule requiring manufacturers/importers of 16 chemicals to submit unpublished health and safety studies. EPA indicates reconsideration topics may include additional exemptions, a reporting threshold, and changes to the lookback period, and notes it anticipates appropriate action regarding the reporting deadline currently identified as May 22, 2026. Compliance teams subject to the 8(d) rule should monitor for subsequent rulemaking that could alter applicability or timing and should plan around the currently stated deadline until changes are finalized.
EPA published the key default values (assumptions) used in its risk assessments of new chemicals under TSCA. These default values are assumptions used by EPA in environmental release and occupational exposure assessments. The agency made these assumptions available in the New Chemicals Division Reference Library to increase transparency and efficiency in the TSCA New Chemicals Program.