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Technical documentation for CE marking

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

Verca editorial team•Guide•Published: 2 June 2026•Last fact-checked: 9 August 2026•2 min read

Short answer

Technical documentation shows how the product was designed, manufactured, and assessed against applicable requirements. It must be complete before the product is placed on the market.

Key takeaways

  • Product identification and intended use
  • Design, BOM, and critical components
  • Applicable requirements and risk assessment
  • Standards, calculations, and test reports
  • Instructions, marking, and labels
  • Signed EU declaration and change history

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.

Content depends on the product and legislation

A technical file normally includes product description, drawings, components, risk assessment, essential requirements, standards, calculations, test reports, instructions, marking, and the EU declaration.

Build the file alongside development

Documentation should be versioned from requirements through production release. Every item of evidence should link to the correct product variant, requirement, and decision.

Traceability matters more than document volume

An authority should understand why each item is relevant. Record product version, standard edition, test configuration, deviations, and responsible reviewer.

Documents that do not agree

Typical errors include conflicting model names, old standard editions, reports for another configuration, missing risk controls, and an EU declaration that does not reflect the technical file.

Minimum evidence

  • Product identification and intended use
  • Design, BOM, and critical components
  • Applicable requirements and risk assessment
  • Standards, calculations, and test reports
  • Instructions, marking, and labels
  • Signed EU declaration and change history

Version-controlled documentation workflow

Verca collects documents, metadata, reviews, and signing by product. The customer remains responsible for technically correct and complete evidence for the target market.

Frequently asked questions

What does this mean in practice?+

Technical documentation shows how the product was designed, manufactured, and assessed against applicable requirements. It must be complete before the product is placed on the market.

Who is responsible for the work?+

A technical file normally includes product description, drawings, components, risk assessment, essential requirements, standards, calculations, test reports, instructions, marking, and the EU declaration.

What documentation is required?+

An authority should understand why each item is relevant. Record product version, standard edition, test configuration, deviations, and responsible reviewer.

Official sources

Primary sources used for this guide.

  • EU guidance on technical documentation, 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.

Product Risk Assessment – Practical Guide

Practical guide to hazard identification, risk evaluation, risk reduction, and product documentation.

Read the guide

EU Declaration of Conformity

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

Read the guide

Harmonised Standards and CE Marking

How harmonised standards provide presumption of conformity and how to document the correct edition.

Read the guide

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