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EU Declaration of Conformity

Guide to the content, signing, responsibility, and version control of an EU Declaration of Conformity.

Verca editorial team•Guide•Published: 4 June 2026•Last fact-checked: 10 August 2026•2 min read

Short answer

The EU Declaration of Conformity is the document in which the manufacturer assumes responsibility for the identified product's compliance with stated EU legislation.

Key takeaways

  • Match model and serial information to the technical file
  • List every applicable legal act
  • Verify standard references and dates
  • Identify notified body where relevant
  • Confirm signatory authority
  • Retain the signed version and update after changes

This content is a practical overview, not legal advice. Always verify the current legislation and the requirements that apply to your product. Research uses official primary sources; competitor content is used only to identify questions and content gaps.

One declaration for the finished product

The business placing the finished product on the market under its own name normally issues a declaration covering the whole product, even where components are already CE marked.

Sign only after assessment is complete

The declaration follows applicability assessment, testing, and technical documentation. An authorised person signs for the manufacturer or, where permitted, its authorised representative.

Required information

The document identifies the manufacturer and product, states sole responsibility, lists relevant acts and standards, identifies any notified body, and includes place, date, name, position, and signature.

Wrong product, legislation, or signatory

Typical errors include vague identification, obsolete acts, standards without editions, copied component declarations, and signing before evidence is complete.

Before signing

  • Match model and serial information to the technical file
  • List every applicable legal act
  • Verify standard references and dates
  • Identify notified body where relevant
  • Confirm signatory authority
  • Retain the signed version and update after changes

Controlled preparation and e-signing

Verca can collect supporting evidence and support preparation, version control, and signing. The signatory and manufacturer retain legal responsibility.

Frequently asked questions

What does this mean in practice?+

The EU Declaration of Conformity is the document in which the manufacturer assumes responsibility for the identified product's compliance with stated EU legislation.

Who is responsible for the work?+

The business placing the finished product on the market under its own name normally issues a declaration covering the whole product, even where components are already CE marked.

What documentation is required?+

The document identifies the manufacturer and product, states sole responsibility, lists relevant acts and standards, identifies any notified body, and includes place, date, name, position, and signature.

Official sources

Primary sources used for this guide.

  • EU guidance on the EU Declaration of Conformity, Opens on an external website
  • European Commission's Blue Guide on EU product rules, Opens on an external website

Continue exploring

Related regulations and guides for the next step in your compliance work.

CE Marking – Requirements and Responsibilities

What CE marking means, when it is required, and the responsibility a manufacturer assumes by affixing it.

Read the guide

Technical Documentation and Technical File for CE Marking

What technical documentation should contain, how to structure it, and how long it must be retained.

Read the guide

Manufacturer Responsibilities under EU Product Rules

Manufacturer responsibilities from product design and assessment to documentation, marking, and corrective action.

Read the guide

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