---
title: Trusted Data Transactions | Future harmonised European standard
description: Get involved in the collaborative normative initiative to contribute to the emergence of data exchange standards with expert organizations in data exchange.
---

[![logo-trusted-data-transaction](https://www.trusted-data-transaction.org/hubfs/ASSETS/MEDIAS/Logo/logo-trusted-data-transaction.png)](https://www.trusted-data-transaction.org/)

- [Workshop Program](https://www.trusted-data-transaction.org/en/workshop-program/)
- [Contributors](https://www.trusted-data-transaction.org/en/contributors/)
- [Event](https://www.trusted-data-transaction.org/event/replay-business-imperative-driving-value-from-trusted-data-transactions/)
- [News & Publications](https://www.trusted-data-transaction.org/en/news-publications/)
- [Contact Us](https://www.trusted-data-transaction.org/en/get-involved/)

# Trusted Data Transaction

The Trusted Data Transaction future harmonized European standard is a global pre-normative initiative dedicated to defining the principles of a trusted data transaction.

[Learn about the program](https://www.trusted-data-transaction.org/en/workshop-program/)

## A step towards the emergence of data exchange standards

![about-trusted-data-transaction](https://www.trusted-data-transaction.org/hs-fs/hubfs/image/about-trusted-data-transaction.png?width=2048&height=1405&name=about-trusted-data-transaction.png)

### About Trusted Data Transaction

The Trusted Data Transaction workshop program is a collaborative normative initiative conducted under the umbrella of the European Committee for Standardization (CEN), that focuses on the definition of key concepts and mechanisms of data transactions with the goal of identifying criteria that baseline how to create trust. The EU Commission has published a Standardization Request for a harmonized European Standard (hEN) on Trusted Data Transaction, a key component of the EU Trusted Data Framework.

[Review the program](https://www.trusted-data-transaction.org/en/workshop-program/)

![our_mission_header_2x](https://cdn2.hubspot.net/hub/7073317/hubfs/dxa-assets/img/homepage/our_mission_header_2x.jpg?width=700&height=467&name=our_mission_header_2x.jpg)

### Ambition

The Trusted Data Transaction workshop program aims at accelerating the emergence of data exchange standards, and contributing to the development of trusted and interoperable data exchange ecosystems.

[Dive into data exchange](https://www.trusted-data-transaction.org/en/workshop-program/#trust-data-transactions)

![cohort-experts](https://www.trusted-data-transaction.org/hs-fs/hubfs/image/cohort-experts.jpg?width=5500&height=3773&name=cohort-experts.jpg)

### A cohort of experts

Co-proposers of the Trusted Data Transaction workshop program, now set for a future harmonized European standard, are German applied research organization Fraunhofer ISST, Dutch applied research organization TNO, and French data exchange tech company Dawex. Joined by a group of experts and practitioners from the corporate world, research organizations and academia.

[Meet the contributors](https://www.trusted-data-transaction.org/en/contributors/)

## CEN and CENELEC officially made available the first standard in the harmonised European Standard series on Trusted Data Transactions

March 25 - **Trusted Data Transactions Standard 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.

With EN 18235-1 made available, 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.

Those standards are more than technical documents, they are **powerful enablers** for **innovation**, **interoperability**, **traceability** and **data-driven business outcomes**.

[Access the Trusted Data Transactions Standard Part 1](https://standards.cencenelec.eu/ords/f?p=205:110:::::FSP_PROJECT:82029&cs=15FF93F75076C003E50E64B1427E59477)

## Towards a Harmonised European Standard

- Mars 2026
  
  Availability of the harmonised European Standard on Trusted Data Transactions - Part 1
- February 2026
  
  Ratification of the European standard on Trusted Data Transactions—Part 1
- July 22, 2025
  
  Publication of the CEN Workshop Agreement Part 2, on Trustworthiness Requirements
- July 1, 2025
  
  Announcement of the EU Commission implementing decision on a standardisation request to the European standardisation organisations as regards a European Trusted Data Framework
- July 26, 2024
  
  Publication of the CEN Workshop Agreement Part 1 on Terminology, Concepts & Mechanisms
- February 6. 2023
  
  Launch of the CEN Pre-Standardization Workshop program on Trusted Data Transaction

 

## Conference Replay - Trusted Data Transaction

Following the **European Commission official publication of a Standardization Request** for harmonised European Standards on Trusted Data Transactions, an exceptional conference on Trusted Data Transactions "**The Business Imperative —Driving value from trusted data transactions and AI in Europe**" was organized on October 7, 2025 in Brussels.

**Dive into the rich discussions** brought by **15 renowned speakers** from the European Commission, instituions, data experts, and practitioners on building trust in data spaces and data ecosystems.

 

[![Access the Replay](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/26890993/interactive-309415298284.png)](https://www.trusted-data-transaction.org/hs/cta/wi/redirect?encryptedPayload=AVxigLKeyEtQSvhRqp0wPn8CvekqyBCpZaYLc%2FCv3bIWpXaYwqhzCy6RMmW2GYjhgSd2Zj2lZt9Jt6Cm%2FXnIRhDdKAiUL4V4u6SkFVJpxbwJY3vSpd940E5hXOJOE3QKsqOLUzS7tK%2BlNaY6ZJhgwdxDp7CtksW5%2F3pVprhD5OwxgwhaH1IpuspKpulkbgjU1xEoBDJbH%2FZ5hV5idS0kDPoJnHrzLg%2B3u2KDHmFwTJuGylJn&webInteractiveContentId=309415298284&portalId=26890993)

![TDT-Oct-7-Bjoern-Juretski](https://www.trusted-data-transaction.org/hubfs/TDT-Oct-7-Bjoern-Juretski.png)

## Towards harmonized Standards on Trusted Data Transactions

 **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**

Trusted Data Transaction workshop proved **pivotal, directly shaping the European Trusted Data Framework**—a top-three priority in the EU's 2024 standardization work programme.

Related to the European Trusted Data Framework, the **European Commission has published a Standardization Request, including one request to CEN-CENELEC for a harmonized European Standard (hEN) on Trusted Data Transaction**, linked to the article 33 of the European Data Act. The standard is currently worked out within the CEN JTC 25 Working Group 2, leveraging the work done in the CWA Part 1 and 2.

[Check the latest announcements](https://www.trusted-data-transaction.org/en/news-publications/)

## Announcement of the publication of the CEN Workshop Agreement Part 2

July 22, 2025 - The CEN just released the part 2 of the CEN Workshop Agreement on Trusted Data Transaction. 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.

[Access the CWA Part 2](https://www.trusted-data-transaction.org/hubfs/Assets%20and%20Publications/cwa-18245_2025-Part2.pdf)

## Meet the Co-Proposers

The Trusted Data Transaction workshop program is co-proposed by German applied research organization Fraunhofer ISST, Dutch applied research organization TNO, and French data exchange tech company Dawex.

Recognized experts, these three organizations entered into an agreement to offer a CEN workshop program whose scope is to identify attribute-based criteria for the decision-making grid which defined how to create trust in a data transaction.

 

[![logo-fraunhofer](https://www.trusted-data-transaction.org/hubfs/image/logo-fraunhofer.svg)](https://www.fraunhofer.de/en.html) [![logo-tno](https://www.trusted-data-transaction.org/hs-fs/hubfs/image/logo-tno.png?width=257&height=75&name=logo-tno.png)](https://www.tno.nl/en/)  [![dawex_logo](https://www.trusted-data-transaction.org/hs-fs/hubfs/image/dawex_logo.png?width=201&height=75&name=dawex_logo.png)](https://www.dawex.com/en/)

## Towards standardization in Data Exchange

The Trusted Data Transaction workshop proved pivotal, directly shaping the European Trusted Data Framework—a top-three priority in the EU's 2024 standardization work programme.

 On July 1, 2025, the EU Commission has published a **Standardization Request for a harmonized European Standard (hEN) on Trusted Data Transaction, a key component of the EU Trusted Data Framework.**

**[Dive into the details](https://www.trusted-data-transaction.org/en/workshop-program/)** 

**![logo-trusted-data-transaction-white](https://www.trusted-data-transaction.org/hubfs/ASSETS/MEDIAS/Logo/logo-trusted-data-transaction-white.png)

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