Notified Body Guide

How to Select a Notified Body for CE Marking (2026)

Choosing the wrong Notified Body — or applying without understanding their scope — can cost you months and thousands of euros. This guide walks you through how to find, evaluate, and engage the right NB for your product and directive.

What Is a Notified Body?

A Notified Body (NB) is an organisation designated by an EU member state to carry out third-party conformity assessment under specific EU legislation. Notified Bodies are independent, accredited organisations — not government agencies — that assess whether products meet EU safety and performance requirements before or during CE marking.

Not every CE marking route requires a Notified Body. But for higher-risk products — including Class IIa, IIb, and III medical devices, certain PPE categories, pressure equipment above specific thresholds, and machinery covered by Annex I of the Machinery Regulation — a Notified Body's involvement is legally mandatory.

Only bodies officially designated and listed in the NANDO database (New Approach Notified and Designated Organisations) can legally issue EU certificates. A certificate from a non-notified body has no legal validity for CE marking purposes.

When Do You Need a Notified Body?

You need a Notified Body when the applicable EU directive or regulation requires third-party conformity assessment for your product's risk class or category:

How to Find a Notified Body: The NANDO Database

The official starting point is the NANDO database (ec.europa.eu/growth/tools-databases/nando). You can search by:

For medical devices, the EUDAMED database also lists designated NBs and their certification scope. Cross-referencing both is recommended for MDR/IVDR applications.

NANDO search returns Notified Bodies by their designation scope — which is critical. A body designated for Class IIa general medical devices is not necessarily designated for Class III implantables, even if they are the same organisation. Always verify the specific scope matches your product.

Key Criteria for Selecting the Right Notified Body

1. Scope of Designation

The NB must be designated for your exact directive, product category, and conformity assessment module. Verify this in NANDO against your specific product classification.

2. Current Capacity

Ask directly: what is the current lead time from application to first review? For MDR devices, some NBs quote 12–18 months for initial assessment slots. This is the single biggest timeline driver.

3. Sector Expertise

NBs specialise. A body with deep experience in active implantables is different from one focused on IVD instruments. Match the NB's track record to your product type.

4. Geographic Experience

While the certificate is EU-wide, some NBs have stronger relationships with specific national competent authorities. This matters for post-market surveillance interactions.

5. Communication and Process

Request a pre-submission meeting. Evaluate responsiveness, clarity of feedback, and how they handle questions. Poor NB communication can add months to your project.

6. Fee Structure

NB fees vary significantly. Get detailed quotes — application review, audit fees, certificate issuance, annual surveillance fees, and additional charges for non-conformities found during review.

The MDR Notified Body Capacity Problem

Since MDR 2017/745 came into full effect, the medical device industry has faced a significant Notified Body capacity crisis. Under the previous MDD, there were over 50 NBs designated for medical devices. Under MDR, fewer than 25 bodies are currently designated, with some having extremely limited capacity for complex devices.

The practical implications for manufacturers:

⚠ Start your NB selection process early For Class IIb and III medical devices, begin NB engagement at least 18–24 months before your target launch date. The application queue alone can exceed your total remaining development timeline if you wait too long.

Pre-Submission Meetings: Use Them

Most Notified Bodies offer (and often require) a pre-submission meeting before accepting a formal application. This meeting serves several purposes:

Prepare for the pre-submission meeting with a clear product description, intended purpose, risk classification justification, and a summary of your conformity assessment approach. A regulatory consultant can help structure this presentation effectively.

Questions to Ask Before Choosing a Notified Body

The Application Process: What to Expect

  1. Pre-submission enquiry — contact the NB to confirm scope and current capacity
  2. Pre-submission meeting — present regulatory strategy, receive NB feedback
  3. Formal application — submit application form, product documentation summary, and fees
  4. Application review — NB assesses completeness; may request additional information
  5. Technical documentation review — detailed review of technical file, risk management, clinical data
  6. On-site audit — QMS audit at manufacturing site(s) (for applicable modules)
  7. Non-conformities — if identified, you must respond with corrective actions
  8. Certificate issuance — NB issues the EU certificate of conformity
  9. Annual surveillance — ongoing audits and document reviews to maintain the certificate

Switching Notified Bodies

It is possible to transfer your certification from one Notified Body to another. Reasons include: NB losing its designation, better service or pricing elsewhere, or NB no longer covering your expanded product range.

The transfer process involves the new NB reviewing existing documentation and potentially conducting a partial or full reassessment. The outgoing NB must be notified. Plan for 3–6 months for a smooth transfer. Your product can remain on the market during the transfer if certificates remain valid.

Frequently Asked Questions

Where can I find a list of EU Notified Bodies?
The official EU database is NANDO (New Approach Notified and Designated Organisations), available at ec.europa.eu/growth/tools-databases/nando. For medical devices, also check EUDAMED. Only bodies listed in NANDO can legally issue EU certificates.
Can I choose any Notified Body in any EU country?
Yes — you can work with any NB designated for your product type and applicable directive, regardless of which EU country they are based in. The certificate is valid across all EU member states.
How long does Notified Body assessment take?
For MDR Class IIb/III devices: 12–24 months from application. For machinery and PPE: 3–9 months. Always ask the specific NB for their current lead times before submitting.
Can I switch Notified Body after certification?
Yes. The new NB reviews existing documentation and may require partial reassessment. Plan 3–6 months for a transfer. Your product can remain on market during the process if certificates remain valid.

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Step-by-step guide to selecting the right EU Notified Body for your product: scope of designation, NANDO database, MDR capacity issues, application process…

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