Qualified Electronic Document Preservation
Accredited conformity assessment of qualified preservation services for electronic signatures and electronic seals under the eIDAS Regulation.
Who needs this — and why
A preservation service asks to be trusted for decades, and that trust is not taken on faith: conformity assessment demonstrates that the service meets the requirements eIDAS places on qualified preservation.
Qualified preservation services ensure that qualified electronic signatures and electronic seals remain legally valid long after the original certificates have expired. They are used by trust service providers and organisations that must preserve the legal value of electronically signed or sealed documents for many years.
Because long-term validity depends on both cryptographic processes and reliable operational controls, the assessment covers the complete preservation service rather than the preservation technology alone.
Every preservation service differs in architecture, preservation policies and operational model. The assessment therefore begins by defining the appropriate scope.
Long-term trust through qualified preservation
Qualified preservation is more than secure storage. Our auditors combine accredited assessment with practical security expertise to verify that preservation processes, cryptographic evidence and operational controls maintain the long-term validity of qualified signatures and seals.
What the certification covers
Our assessment covers the complete lifecycle of a qualified preservation service, from the receipt of signed or sealed documents to the preservation processes that maintain their legal validity over time. We examine how cryptographic evidence is protected, how preservation information is generated and maintained, and how the service ensures that qualified signatures and seals remain verifiable despite changes to certificates or algorithms.
The assessment also includes the wider governance and security framework supporting the service, including preservation policies, operational procedures, incident management, cryptographic controls and change management. Rather than reviewing individual controls in isolation, we evaluate how the service functions as a whole and whether objective evidence demonstrates that technical and organisational controls operate consistently in practice.
Standards & articles
Qualified preservation services are assessed against the applicable requirements of the eIDAS Regulation and its supporting ETSI standards.
This may include:
- Regulation (EU) No 910/2014 (Articles 34 & 40)
- ETSI TS 119 511
- ETSI EN 319 401
- Applicable supervisory requirements
The exact assessment scope depends on the qualified preservation service provided and is agreed with you during scoping, before the assessment begins.
Where we've done it
Our experience includes accredited assessments involving organisations such as those below — the full list is available on our references page.
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Incode
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MISA
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monobank
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Scrive
More broadly, TAYLLORCOX has certified more than 30 trust services across 11 countries.
Our references include qualified trust service providers delivering preservation services across Europe and international markets.
Explore the full eIDAS scope
We assess every trust service and identity scheme the Regulation defines — not only the one on this page.
Request an assessment
If you are launching a qualified preservation service, preparing for supervisory assessment or reviewing an existing qualified service, we can help define the assessment scope and explain what evidence will be required before the conformity assessment begins.
Your first conversation will be with an experienced eIDAS auditor who will discuss your service, applicable standards and the most appropriate assessment path.
