Technical File & Declaration of Performance Preparation

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Your technical file and Declaration of Performance (DoP) are the backbone of CE marking under the Construction Products Regulation. If these documents are incomplete, outdated, or don’t match your declared performance, your CE marking is not valid — even if the product itself meets the requirements. We review, correct, and prepare these documents so they hold up to scrutiny from Notified Bodies and market surveillance authorities.

What Your Technical File and DoP Must Include

A compliant technical file and DoP should include:

  • A correctly classified product and intended use, referencing the right harmonised standard
  • Declared performance values for each essential characteristic, backed by valid test reports
  • A complete Declaration of Performance that matches the technical file exactly
  • Manufacturing process documentation supporting the declared AVCP system
  • Labelling and CE marking artwork consistent with the DoP

Our Review Process

We start by mapping your current documentation against the harmonised standard(s) that apply to your product, then work through a structured process:

  1. Gap analysis — comparing your existing technical file and DoP against CPR requirements
  2. Documentation review — checking test reports, certificates, and manufacturing records for consistency
  3. Correction and rewriting — fixing inconsistencies, outdated references, and missing declared values
  4. Final check — verifying the DoP, technical file, and labelling all align before you publish or re-issue
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Common Errors We Find (and Fix)

In documentation reviews, the same issues come up again and again:

  • DoPs referencing an outdated or withdrawn version of the harmonised standard
  • Declared performance values that don’t match the test report results
  • Technical files missing records for the declared AVCP system
  • CE marking labels showing different information than the DoP
  • Product scope in the DoP broader than what was actually tested

Deliverables and Timeline

At the end of the review, you receive a corrected technical file, an updated Declaration of Performance, and a short report listing what changed and why. For most products, a full review and correction takes 1-3 weeks depending on the number of essential characteristics and the state of your existing documentation.

For background reading, see our guides on the Declaration of Performance and harmonised standards under the CPR.

Ready to Get Your Documentation Right?

Get in touch to discuss your technical file and DoP — we’ll tell you honestly whether a quick review or a full rewrite is needed.

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