Publication - March 25, 2026
Announcement of the availability by CEN-CENELEC of the first standard in the harmonised European Standard series on Trusted Data Transactions
The CEN/CENELEC officially made available today the first standard in the harmonised European Standard (hEN) series on Trusted Data Transactions —EN 18235-1:2026, requested by the European Commission as part of Mandate M/614 - European Trusted Data Framework.
Part 1: Terminology, concepts and mechanisms establishes the shared foundational language for trusted data exchanges across Europe — and a reference point for international standardization efforts.
This is the result of 3 years of collaborative work involving standardization experts, research organizations, industry leaders, and public institutions under the umbrella of CEN/CENELEC. It is a direct output of the pre-standardization work initiated in 2023 by Dawex, co-proposed with Fraunhofer ISST and TNO, which laid the conceptual groundwork now embedded in this standard.
With EN 18235-1 published, in advance of the deadline set by the European Commission in its standardisation request, the roadmap to the full TDT Harmonised Standard series is firmly on track:
Part 2 – Trustworthiness requirements: deadline November 1, 2026
Part 3 – Interoperability requirements: deadline May 1, 2027
Those standards are more than technical documents. They are powerful enablers — for innovation, interoperability, traceability and data-driven business outcomes. A common language for trusted data transactions reduces legal uncertainty, accelerates participants onboarding in data ecosystems, and creates the foundation for scalable, cross-border and cross-industry data exchanges.
Access the Trusted Data Transactions Standard Part 1
Publication - July 22, 2025
Announcement of the publication of the CEN Workshop Agreement Part 2
Access the full details of the CWA Part 2. This new document defines the trustworthiness requirements for trusted data transactions, through a set of foundational principles, general trustworthiness requirements that apply to all phases of a transaction and specific trustworthiness requirements for each individual phase.
Publication - July 1, 2025
Announcement of the Commission implementing decision on a standardisation request to the European standardisation organisations as regards a European Trusted Data Framework
Publication - July 26, 2024
Announcement of the publication of the CEN Workshop Agreement Part 1
Access the full details of the CWA Part 1. This new document provides terminology, concepts, and mechanisms in the field of data exchange focusing on trusted data transactions.
Announcement - February, 10 2023
CEN Announcement of the Workshop on Trusted Data Transaction
Access the details on the workshop and attend the kickoff meeting scheduled on March 10.
Press Release - February 8, 2023
Dawex, Fraunhofer ISST and TNO Agree to co-Propose a Pre-Standardization Program on Trusted Data Transaction
Conference Replay - The Business Imperative —Driving value from trusted data transactions and AI in Europe
Tuesday, October 7, 2025 - Brussels
The landscape for data and AI in Europe is rapidly evolving. The critical question remains: Are you prepared for exchanging data at scale?
On October 7 in Brussels, an exclusive, high-impact conference brought together leading voices from industry, research, and European institutions to tackle the business imperative of driving value from trusted data transactions and AI.
Open event - Trusted Data Transaction - Understand the Impacts of the Future Standardisation
Tuesday, Sept. 24, 2024 - Brussels
Building trust and enhancing interoperability within and across data spaces are key goals of the European strategy for data. As new data legislations take effect and multiple European data space initiatives are in motion, standards emerge as essential tools to achieve those goals.
Join the European Commission, data experts, and practitioners for insightful keynotes, presentations, and engaging roundtable discussions to understand what are the benefits of trusted data transactions for your business and how standardisation can unlock new opportunities for growth and collaboration.
Blog - July 7, 2025
Trusted Data Transaction, towards standardization in Data Exchange
The standardization of Trusted Data Transactions is quickly progressing in Europe. The CEN Workshop on Trusted Data Transaction was launched in 2023 involving major stakeholders which published in sumer 2024 the Part 1 of a CEN Workshop Agreement (CWA), defining terminology and concepts. Part 2 of the CWA, outlining trustworthiness requirements for each phase of a data transaction, is set to be published in summer 2025.
Meanwhile, Trusted Data Transaction is an integral part of the European Trusted Data Framework, and the EU has published a Standardization Request, including one request to CEN-CENELEC for a harmonized European Standard (hEN) on Trusted Data Transaction,
Grasp the latest updates towards a harmonized European standard
Blog - October 3, 2024
Towards understanding the impacts of the future standardization
Monday 23rd September and Tuesday 24th September 2024 marked an important milestone for the CEN Workshop on Trusted Data Transaction (TDT). Key representatives of the Workshop gathered at the European Committee for Standardization’s (CEN) offices in Brussels, for a full day of work, followed by an open event to present to a wider audience progress made on the workshop, discussing also the role and impact of the future standard on building trust and interoperability within and across data spaces.