The Notified Body bottleneck is the single most discussed operational challenge in the MDR ecosystem. With roughly half the Notified Bodies that existed under the MDD, and significantly more demanding assessment requirements, the supply of audit capacity is far below demand. For startups, this translates into wait times of 6 to 18 months. Sometimes longer. Between signing a contract and receiving your first audit date.

This is not a problem you can solve by preparing better documentation. It is a structural capacity constraint. But there are strategies to minimize its impact on your timeline.

Why Does the Bottleneck Exist?

Three factors converge:

1. Fewer Notified Bodies. The MDR's stricter designation requirements (Articles 35–44) reduced the number of Notified Bodies from approximately 80 under the MDD to approximately 40 under the MDR . Some former MDD Notified Bodies did not apply for MDR designation. Others applied but did not meet the new requirements.

2. More demanding assessments. MDR conformity assessments take more time per device than MDD assessments. The technical documentation review is deeper. The clinical evaluation scrutiny is more thorough. The audit days required are higher. Each Notified Body can process fewer devices per year.

3. Legacy device backlog. Thousands of devices with MDD certificates need to transition to MDR certificates before the extended transition deadlines (December 31, 2027, for Class III and IIb implantable; December 31, 2028, for others ). These legacy transitions compete with new device applications for Notified Body capacity.

The result: more devices competing for less assessment capacity, with each assessment taking longer. The math does not work, and startups. Who are often smaller, lower-revenue, and less established than the companies transitioning legacy devices. Frequently find themselves at the back of the queue.

How Long Are Current Wait Times?

Wait times vary significantly by Notified Body, device type, and risk class. As of early 2026, anecdotal reports suggest:

  • Large, established Notified Bodies (TUV, BSI, DEKRA): 12–18+ months from contract to first audit for new device applications
  • Mid-tier Notified Bodies: 6–12 months
  • Newly designated Notified Bodies: Potentially shorter wait times, but with less track record

These are rough estimates. The only way to get an accurate timeline is to ask the specific Notified Body directly and, ideally, verify with recent clients.

What Can Startups Do?

Strategy 1: Apply Early

The single most effective strategy is to engage your Notified Body as early as possible. Ideally before your documentation is complete. The queue time runs in parallel with your preparation time. If you wait until everything is ready before applying, you add the queue time on top of your preparation time.

Practical approach: - Begin Notified Body selection 12–18 months before your target certification date - Submit applications to 2–3 Notified Bodies simultaneously - Sign the contract with your preferred choice as soon as feasible - Use the queue time to finalize your documentation and QMS

Strategy 2: Consider Smaller or Newer Notified Bodies

Newly designated Notified Bodies often have shorter wait times because they are still building their client base. The trade-off: they may have less experience, fewer auditors, and a shorter track record.

However, all MDR-designated Notified Bodies have passed the same rigorous designation process. A newly designated Notified Body is not less competent by definition. They are newer. Evaluate them on the same criteria as established Notified Bodies (scope, expertise, communication, cost) and factor in the timeline advantage.

Strategy 3: Ensure Audit-Readiness

Nothing extends your timeline more than a failed audit. If the Notified Body identifies major non-conformities during Stage 2, you enter a resolution cycle that can add 3–6 months or more. Some startups require a follow-up audit after major non-conformity resolution, which means re-entering the scheduling queue.

Invest in audit readiness: - Conduct an internal audit against MDR requirements before the Notified Body audit - Engage an experienced regulatory professional to review your documentation with fresh eyes - Ensure your team can articulate your processes. Auditors interview people, not documents - Have your GSPR checklist, risk management file, and clinical evaluation report thoroughly reviewed

Strategy 4: Leverage Pre-Submission Meetings

Some Notified Bodies offer pre-submission meetings or gap assessments. A preliminary review of your documentation before the formal audit. This can identify critical gaps early, allowing you to fix them before the audit clock starts.

Pre-submission meetings add cost, but they can save time by preventing major non-conformities during the actual audit. Ask your Notified Body whether they offer this service.

Strategy 5: Optimize Your Conformity Assessment Route

Different conformity assessment procedures require different levels of Notified Body involvement. For some device classes, you may have a choice between procedures. And the less intensive procedure may have a shorter queue time.

For example, for Class IIa devices, Article 52(7) allows conformity assessment via Annex IX (QMS + technical documentation assessment) or via Annex XI combined with Annex IX Chapter I . The specific combination may affect the scope and duration of the Notified Body assessment.

Discuss the options with your regulatory advisor to identify the most efficient path for your specific device.

Strategy 6: Consider Geographic Flexibility

If your first-choice Notified Body has an 18-month wait time and another Notified Body in a different country offers 8 months, the travel cost for audits may be worth the timeline savings. The CE mark is valid across the entire EU regardless of which member state your Notified Body is in.

Strategy 7: Prepare for Unannounced Audits from Day One

Once you are certified, unannounced audits can happen at any time. Building audit-readiness into your daily operations. Not just for the initial certification but as an ongoing discipline. Prevents the scramble that many startups face when an unannounced audit is announced.

What Not to Do

Do not wait for "perfect" documentation before engaging a Notified Body. Perfect is the enemy of on-time. Your documentation needs to be complete and compliant, not perfect. Engage the Notified Body while you are still finalizing.

Do not shop based solely on cost. The cheapest Notified Body may have the longest wait time, the least relevant expertise, or the highest non-conformity rate. Cost is one factor among many.

Do not assume the bottleneck will resolve soon. The Commission and member states are working to increase capacity, but the structural constraints. Stricter designation requirements, more demanding assessments. Are built into the MDR. This is not a temporary problem with a near-term fix.

Do not try to game the system. Submitting incomplete applications to multiple Notified Bodies to "hold your place" is not effective and may damage your reputation. Notified Bodies communicate with each other, and the regulatory community is small.

The Bigger Picture

The Notified Body bottleneck is frustrating, but it is a consequence of a system designed to be more thorough. The MDD system processed devices faster but with less scrutiny. And the results included scandals like PIP. The MDR system is slower but more robust.

For startups, the bottleneck is a planning constraint that must be factored into your business model from the beginning. If your investor pitch promises market launch in 12 months and your Notified Body wait time is 14 months, your plan is already broken. Be realistic about timelines and build the regulatory queue time into your milestones.

Tibor's summary: "The bottleneck is real, and it is not going away. The startups that succeed are the ones that plan for it, not the ones that complain about it."

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