Can I Use My Supplier’s CE Test Reports?

Quick answer: You may be able to use your supplier’s test reports as evidence for CE marking. First check that they cover the product you sell, its configuration and the applicable requirements. A report is not an EU Declaration of Conformity. Selling under your own brand can make you the manufacturer, with responsibility for the finished product.

This guide is for manufacturers and private-label businesses reviewing electronic products for the EU. It provides a document-screening workflow. It does not replace the product-specific conformity assessment. Medical devices, construction products and other specialist sectors need their own review.

Can I use my supplier’s CE certificate?

Do not rely on the title “CE certificate”. Check what the document actually is. There is no universal CE certificate that transfers responsibility from your business to a factory or laboratory.

The European Commission warns that unregulated voluntary certificates are not recognised proof of compliance. These are different from certificates issued by notified bodies under an applicable conformity assessment procedure. See the Commission’s warning on unregulated certificates.

For a wider overview, read our CE marking guide for electronics.

Who is responsible when I sell under my own brand?

If you have a product made and sell it under your own name or brand, you are generally the manufacturer under the relevant EU product rules. Outsourcing production does not outsource that responsibility.

Your Europe explains this in its Declaration of Conformity guidance. An importer selling the original manufacturer’s unchanged product has a different role. Do not assume every importer must replace the manufacturer’s declaration with its own.

Ask two questions before reviewing the documents:

• Whose name or brand will appear as the manufacturer?
• Who controls the evidence for the final product?

A factory’s permission letter may help establish access to its documents. It does not prove that those documents cover your product. Do not edit the factory’s report yourself to insert a different model or company name.

Seven checks before relying on a supplier test report

Use these checks to record what matches and what remains unresolved. They are a practical screening method, not seven separate statutory requirements.

1. Match the tested sample to your product

Compare the report’s model number, photographs and ratings with your specification. Check the circuit-board revision, enclosure and critical components where relevant. A similar product name is not enough.

If your sales SKU differs from the factory model, request a documented mapping. Keep the mapping with the supporting specifications. Do not rely on a salesperson’s informal assurance.

2. Check the tested configuration

Look for the power supply, cables, accessories and operating modes used during testing. Record any differences from the version you plan to ship. Flag firmware or radio changes that could affect the assessment.

3. Map the report to the requirements

An EMC report does not answer every product-compliance question. Make a list of applicable obligations. Then record which evidence supports each one. Leave unsupported requirements visible.

For the structure of the evidence file, use the EU guidance on preparing technical documentation and our CE documentation checklist.

4. Review the standard and edition

Record the full standard reference and amendments. Check its relevance to the product and the current legal framework. Where you rely on a harmonised standard, check its Official Journal status and any restrictions.

Harmonised standards are generally voluntary. Other technical solutions need suitable evidence. An older report should trigger a relevance review, not an automatic conclusion that it is valid or invalid. See the EU explanation of harmonised standards.

5. Verify the issuer and any accreditation claim

Use the laboratory’s independently located contact details to verify a suspicious report. Check the report number, issuing site and revision.

If accreditation is claimed, check the laboratory’s listed scope. Accreditation covers specific activities. A logo alone does not show that the relevant test is covered. European Accreditation explains report verification. The ILAC directory helps locate accreditation bodies and their facility registers.

6. Read the full report

Request all pages and attachments. Check results, exclusions, deviations and sample modifications. A cover page marked “pass” can hide important limits. Record unanswered points for the laboratory or reviewer.

7. Confirm access and change control

If you are the manufacturer, prepare the technical documentation before placing the product on the market. Ensure you can make it available to authorities on request.

Agree how you will access supporting records. Ask the supplier to notify you before changing relevant components or manufacturing specifications. Link each approved evidence pack to the product revision it covers.

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Can I reuse the report, or do I need more testing?

A document review should identify the evidence gap before anyone orders new testing. A mismatch does not always require a complete retest. It does require a defensible assessment.

Worked example: one sensor, two model numbers

Illustrative example. This is not a customer case or a product approval.

A manufacturer plans to sell a wired humidity sensor as SKU H200. The supplier provides an EMC report for model TH-20. The photographs look similar. The report lists a different power adapter.

1. Identity: request the TH-20 to H200 mapping and both product specifications.
2. Configuration: compare the tested adapter with the adapter in the sales pack.
3. Coverage: identify requirements not addressed by the EMC report.
4. Decision: ask the reviewer to document which evidence remains usable and what is missing.

The practical outcome is an action list. It might request a model mapping, a change assessment and additional evidence. It should not simply say “the factory has CE”.

What should I ask my supplier to send?

Use this request before committing to a production order. Adapt it to your product and the confidentiality arrangements.

Please send the complete compliance evidence for [model and revision], intended for sale in [markets].

Include the full test reports and attachments, the applicable declaration, and the tested sample specifications. Please identify the power supply, accessories and relevant hardware or firmware revisions.

Explain any differences between the tested sample and our ordered product. If our SKU differs, provide a documented model mapping.

Please confirm how we can access the supporting technical records. Tell us who will notify us before relevant product changes.

Save the response with the evidence pack. Record each missing item, its owner and a due date. This is more useful than a folder containing unreviewed certificates.

What should happen after the review?

Keep a short decision record for each product or justified model family. Include the report references, product revision, gaps and agreed actions. Record who reviewed the evidence and when.

Revisit that decision when relevant requirements or the product change. Avoid applying one report to a whole catalogue without documenting why it covers the variants.

EcoComply can scope supplier-document checks, gap assessment and testing coordination through its CE marking service. Start with your product details, target markets and current evidence list. A free assessment call helps define the work you need. It is not a completed technical-file review.

Sources and scope

Sources checked on 30 September 2026. The checklists and worked example are EcoComply’s practical synthesis. Apply the specific legislation and assessment route for your product.

• European Union: signing a Declaration of Conformity. Manufacturer responsibility.
• European Union: preparing technical documentation. Evidence-file requirements.
• European Union: standards in Europe. Harmonised standards and alternative solutions.
• European Commission: EMC Directive. Warning about unregulated certificates.
• European Accreditation: checking report validity. Accreditation verification.