Chemical Data Sharing

US EPA Authorises SAIC Access to TSCA Confidential Business Information

US EPA has authorised contractor SAIC to access confidential TSCA submissions, including business-sensitive information, to support ChemView data warehousing and analytics work beginning no earlier than 19 May 2026. This is an administrative CBI-handling step rather than a new compliance obligation, but it clarifies which third party can see proprietary TSCA data and underpins future transparency and data-service initiatives.

12 May 2026, 15:28federalregister.govUnited States

EU Council Adopts Omnibus X Regulation Extending Data Protection for Biocidal Active Substances to 2030

EU legislators have adopted an Omnibus X regulation amending the Biocidal Products Regulation to extend data protection for certain existing biocidal active substance dossiers until 31 December 2030, with entry into force 20 days after publication in the Official Journal. This changes the economics of biocidal active substance supply by prolonging data ownership and compensation rights, so companies should reassess data-access agreements, cost-sharing arrangements, and product portfolio plans around affected review-programme substances.

12 May 2026, 15:08data.consilium.europa.euEuropean Union

Japan METI Sets CSCL FY2025 Annual Notification Deadlines (30 June / 31 July 2026)

Japan’s Ministry of Economy, Trade and Industry has issued 2026 CSCL annual notification guidance confirming that FY2025 manufacturing and import quantities for general, priority and monitoring substances must be reported between 1 April and late June/July 2026, depending on the submission channel. Chemical manufacturers and importers should finalise CSCL inventories, SDS and classification data and ensure e-Gov or paper notifications are submitted ahead of the 30 June (paper) and 31 July 2026 (electronic/optical) cut-offs to avoid non-compliance and penalties.

11 May 2026, 13:10meti.go.jpJapan

EU ECHA Updates AS-RNL Expressions Of Interest List For Biocidal Active Substance Renewals (Prepared 04 May 2026)

ECHA has refreshed its “expressions of interest” list for Biocidal Products Regulation active substance renewals, publishing a version prepared as of 04 May 2026 that shows which active substance/product-type combinations have sponsors, which do not, and the associated renewal deadlines over the next several years. This update gives manufacturers and authorisation holders a clearer forward view of which biocidal actives remain supported, where no renewal interest is recorded, and when key renewal windows close, informing decisions on joint dossiers, portfolio prioritisation, and substitution planning.

11 May 2026, 12:02echa.europa.euEuropean Union

UK Alliance of Chemical Associations Highlights Concerns Over UK REACH ATRm

In April–May 2026 the UK Alliance of Chemical Associations sent a joint letter, published by UKCPI, warning that the Government’s UK REACH Alternative Transitional Registration model (ATRm) still creates costly, duplicative registration burdens and compressed deadlines despite planned alignment with EU REACH. The letter signals strong industry pressure on Defra and DBT to recognise EU registrations, allow wider use of public ECHA data, and revisit ATRm timelines and data requirements, which could shape subsequent UK REACH implementation and compliance planning for UK and EU supply chains.

9 May 2026, 13:23ukcpi.orgUnited Kingdom

South Korea Amends K-REACH Enforcement Decree on Data Sharing Disputes and OR Transitions

On 06 May 2026, South Korea promulgated Presidential Decree No. 36304 amending the K-REACH Enforcement Decree to formalise data-sharing dispute resolution, clarify Only Representative succession, expand SME support, and upgrade related IT procedures. These binding procedural changes will reshape how registrants coordinate joint submissions and OR transitions under K-REACH, so companies should reassess contracts, governance, and systems to align with the clarified framework.

9 May 2026, 13:15reach.ktr.or.krSouth Korea

Connecticut HB 5155 Creating Pesticide Reporting Database Working Group Passes Both Chambers

Connecticut’s General Assembly has passed HB 5155, which would create a multi-stakeholder working group to design a modern, searchable database for pesticide sales and use reporting, pending any required executive action. This signals a likely shift toward more granular, technology-driven pesticide tracking in Connecticut, with potential future obligations for applicators, farmers, and retailers once the working group’s recommendations are translated into law or regulation.

8 May 2026, 10:53cga.ct.govUnited States

ECHA Updates Drinking Water Directive Notification of Intention Manual for IUCLID v10 (April 2026)

ECHA has issued an April 2026 update of its Drinking Water Directive Notification of Intention IUCLID manual, aligning guidance with the IUCLID v10 release and the new EU positive-list regime for materials and products in contact with drinking water. While the legal obligations remain set by Directive (EU) 2020/2184 and its implementing acts, applicants now need to follow updated notified-entry types, reference-substance, confidentiality, validation, and dissemination-preview rules in IUCLID to ensure successful, timely DWD submissions and avoid unintended public disclosure.

7 May 2026, 05:45echa.europa.euEuropean Union

California DPR Publishes PREC Agenda for 15 May 2026 CalPEST Overview Meeting

California’s Department of Pesticide Regulation has posted the agenda for a 15 May 2026 remote meeting of its Pesticide Registration and Evaluation Committee focused on an overview of the CalPEST electronic pesticide submission and tracking system. While no specific pesticide decisions are scheduled, pesticide registrants and advisors may gain insight into how CDPR expects CalPEST to be used for future applications, data access, and regulatory interactions.

6 May 2026, 19:29cdpr.ca.govUnited States

EFSA Summarises Year-Three Development of OpenFoodTox 3.0 Chemical Hazards Database

EFSA has published a 2026 external scientific report summarising year-three work on its OpenFoodTox 3.0 chemical hazards database, enhancing data quality, new QSAR models, and interoperability with IUCLID and the EU Common Data Platform on Chemicals. These upgrades strengthen the digital backbone of EU food and feed risk assessment and will progressively shape how companies and risk assessors access, align, and supply hazard data for regulatory use.

5 May 2026, 06:50efsa.onlinelibrary.wiley.comEuropean Union

South Korea Discloses Names of 136 Existing Chemicals Under K-REACH

South Korea has finalised a partial amendment to the K-REACH existing chemical inventory, disclosing the real chemical names of 136 substances whose confidentiality has expired and correcting several existing entries with precise CAS-linked identifiers, effective immediately from 28 April 2026. This strengthens transparency and alignment with international substance identification practices, meaning companies handling existing chemicals in Korea must recheck inventory status, update registrations and documentation, and ensure their internal systems use the official names and CAS numbers now published.

3 May 2026, 14:43chemical.chemlinked.comSouth Korea

South Korea Consults on Amendments to K-REACH Enforcement Rules for Joint Submission Disputes and Data Grace Periods

South Korea’s Ministry of Climate, Energy and Environment has launched a re-consultation on draft amendments to the K-REACH Enforcement Rules to formalise dispute resolution for joint registrations, introduce data submission grace-period procedures, and clarify succession rules when overseas manufacturers change their appointed representative, with comments due by 8 June 2026. These changes will materially affect how K-REACH registrants and representatives manage data-sharing, governance, and timelines ahead of K-REACH Act amendments taking effect in May 2026, so companies relying on joint submissions or Korea-based representatives should review the draft and prepare feedback and implementation plans.

3 May 2026, 14:43opinion.lawmaking.go.krSouth Korea

ECETOC Workshop Outlines Principles For Trustworthy AI In Chemical Risk Assessment

A 2026 peer-reviewed article in Archives of Toxicology summarises a 2024 ECETOC workshop on how artificial intelligence can be responsibly integrated into chemical risk assessment, emphasising FAIR data, explainability, and governance as prerequisites for trustworthy use. For regulators and industry, this signals that AI tools for hazard and exposure assessment will only gain regulatory acceptance if they are built on high-quality interoperable data, transparent models, and robust human oversight frameworks, shaping how digital toxicology solutions are designed and deployed.

28 Apr 2026, 17:50researchportal.ukhsa.gov.ukEuropean UnionNetherlands

EFSA Procurement Extends Development of OFT Chemical Hazards Database (OFT 3.0) to 2026

EFSA has extended to 31 May 2026 the deadline for its procurement project to further develop and update the OFT 3.0 chemical hazards database used in EU food risk assessment. This indicates that upgraded EFSA hazard data infrastructure and any associated changes in how chemical risk information is structured or accessed are now targeted for mid-2026 rather than earlier, shaping expectations for future data and IT integration changes rather than imposing new direct obligations.

28 Apr 2026, 11:45open.efsa.europa.euEuropean Union

EU / ECHA Annual Report 2025 Highlights PFAS And Chromates Restrictions, SVHC Updates, And DWD IT Readiness

ECHA’s 2025 Annual Report confirms intensive work on PFAS and chromates restriction dossiers, new SVHC listings, and expanded digital infrastructure including the ECHA CHEM database and Drinking Water Directive IT systems across the EU. These developments signal where EU chemicals regulation is heading, tightening risk management for persistent and high‑concern substances and preparing new data and notification obligations under REACH, CLP, water, batteries and packaging frameworks that companies must factor into medium‑term planning.

27 Apr 2026, 18:55echa.europa.euEuropean Union

Alliance Of Chemical Associations Criticises UK REACH ATRm Response And Urges Recognition Of EU REACH Registrations

DEFRA’s new ATRm approach under UK REACH reduces upfront data requirements for transitional registrations while keeping the no data, no market principle and signalling closer alignment with EU decisions, but the legal details and extended deadlines still demand careful planning from GB registrants. ACA’s response highlights the remaining £500m-plus cost burden, duplicate UK/EU registrations, and compressed 12-month windows to meet the 2029–2031 transitional deadlines, making it a critical signal that companies should reassess their UK REACH strategy, data access arrangements, and resource planning.

27 Apr 2026, 08:37gov.ukUnited Kingdom

US EPA Publishes 2024 Chemical Data Reporting Dataset and Confirms 2028 Submission Window

US EPA has published the 2024 Chemical Data Reporting dataset and confirmed the 1 June to 30 September 2028 submission window for the next CDR cycle. Manufacturers and importers subject to TSCA should use the new data to understand market exposures and start organising 2024–2027 production and use information now so they can meet the 2028 reporting obligations without disruption.

24 Apr 2026, 09:34epa.govUnited States

US EPA Publishes 2024 Chemical Data Reporting Dataset and Confirms 2028 CDR Reporting Window

US EPA has released the 2024 Chemical Data Reporting dataset for 8,650 chemicals and clarified the timing and scope of the next TSCA CDR reporting cycle, running in 2028. This gives compliance and product stewardship teams fresh visibility into US chemical volumes and a clear 2027 data horizon, so they can align systems, suppliers, and internal data processes ahead of the 1 June–30 September 2028 submission window.

24 Apr 2026, 09:33epa.govUnited States

ECHA Updates OECD eChemPortal With Latest REACH Registration Data

ECHA has updated the OECD eChemPortal so that its ECHA CHEM REACH registration data, including around 5 000 updated registrations and 1 229 new substances, is now directly accessible and linked back to underlying dossiers as of 20 April 2026. This does not alter legal obligations but makes REACH data more visible and reusable across jurisdictions, strengthening global hazard screening and portfolio review workflows that depend on eChemPortal.

24 Apr 2026, 08:58echa.europa.euEuropean Union

US EPA Publishes TSCA CBI Claim Expiration List for June–July 2026

US EPA has published a public web list and spreadsheet of TSCA confidential business information claims scheduled to expire between 22 June and 31 July 2026, together with detailed CDX-based instructions for requesting up to 10 more years of protection. TSCA submitters now need to identify any of their claims on the list and ensure substantiated extension requests are prepared and filed via CDX at least 30 days before each expiration date to avoid sensitive data being released.

24 Apr 2026, 07:34epa.govUnited States