What does presumption of conformity actually mean for an EU Data Act interoperability requirement?
Under the Data Act, a harmonised standard whose reference is published in the Official Journal gives a presumption of conformity for the essential requirements it covers, which means a team that follows it is presumed to meet those requirements unless shown otherwise. It is a rebuttable presumption tied to the specific requirements the standard addresses.
Teams should not read the presumption more broadly than the standard's scope, and should keep evidence of how their implementation maps to the covered requirements.
- Apply the presumption only to the essential requirements the referenced standard actually covers.
- Keep mapping evidence showing how the implementation meets those specific requirements.
Provides the legal status distinctions used for harmonised standards, common specifications, and repository references.
Supports tracking M/614 deliverable status, adoption deadlines, and Article 33 coverage in a standards register.
Supports careful wording that M/614 deliverables were accepted for development, not already final standards.
Places data interoperability, data quality, data governance, and data-space interoperability in the Commission's data-economy standardisation context.
Lists interoperability for data processing services as an action under the 2026 work programme and supports ongoing standardisation work.
Commission overview for Data Act chapters, connected-product access, B2G requests, cloud switching, interoperability, and implementation support.