EU IMPLEMENTATION
From regulation to operation
A source-based tracker of the legal, institutional and technical steps through which Regulation (EU) 2025/327 is being implemented.
Last reviewed: 26 August 2026
CURRENT STATUS
Implementation preparation
2025–2027
The EHDS Regulation entered into force on 26 March 2025. The present phase centres on the implementing acts and the national legal, organisational and technical arrangements needed to make the framework operational.
Member States are preparing governance structures, national contact points, Health Data Access Bodies and connections to the European infrastructures. The Regulation generally applies from 26 March 2027, while many of its principal operational requirements begin in later stages.
Implementation timeline
The EHDS is being introduced in stages. These are the principal milestones at EU level.
26 March 2025
Entry into force
Regulation (EU) 2025/327 entered into force, beginning the formal implementation period.
26 March 2027
General application and key implementing acts
The Regulation generally becomes applicable, subject to its staggered transitional provisions. The European Commission is also due to adopt a first set of key implementing acts.
26 March 2029
First major operational wave
Rules apply to the first priority categories for primary use, including patient summaries and electronic prescriptions and dispensations. The secondary-use framework begins applying to most data categories.
26 March 2031
Second operational wave
Primary-use requirements extend to medical images, laboratory results and hospital discharge reports. Secondary-use rules extend to the remaining categories, including genomic data.
March 2035
International participation
Third countries and international organisations may apply to participate in HealthData@EU for secondary use.
These dates describe the EU-level timetable. National preparation and related projects take place throughout the implementation period.
Implementation workstreams
Primary use and MyHealth@EU
Access by individuals and healthcare professionals, cross-border exchange, priority data categories, patient rights and national digital-health contact points.
Secondary use and HealthData@EU
Health Data Access Bodies, permits, secure processing environments, data catalogues, cross-border access and safeguards for research, innovation and policymaking.
EHR systems and interoperability
European specifications, conformity requirements, common formats, logging and the interoperability of electronic health record systems.
Governance and national authorities
Designation of competent authorities, national legislation, coordination through the EHDS Board, enforcement and the division of responsibilities.
Official sources and implementation resources
Official Regulation
The authentic legal text of Regulation (EU) 2025/327 on EUR-Lex.
European Commission overview
Official overview, implementation timeline, documents and related material.
Projects supporting the EHDS
European Commission information on projects preparing infrastructure, guidance and implementation.
TEHDAS2
Joint Action developing guidance and common approaches for the secondary use of health data.
Editorial note
EHDS Monitor prioritises original official sources. The summaries on this page are intended to help readers navigate implementation and do not replace the Regulation or other authoritative legal texts. The page will be updated as implementing acts, guidance and national arrangements develop.
EHDS Monitor 