The EU MDR CE Marking Process is not optional paperwork tacked onto the end of product development. It is the legal mechanism that allows a device onto the EU market, and getting it wrong costs manufacturers months, sometimes years.
This article walks through the Medical Device CE Marking Process step by step, with the regulatory basis behind each stage. For background on the regulation itself, see our EU MDR Overview article first.
CE Marking at a Glance
CE marking is a mark placed on a device to show it meets the applicable requirements of the MDR. It is not a quality award or a marketing claim.
Under Article 20, the CE mark can only be applied once the manufacturer finishes the required conformity assessment and can show the device meets the regulation.
Here is where people often get confused. MDR compliance is the bigger legal obligation. It covers the quality management system, technical documentation, risk management and post-market surveillance. CE marking is just the visible result once that work is done and approved.
A device cannot legally enter the EU market without the mark. And the mark cannot be earned without doing the compliance work first.
Classification and Conformity Assessment Routes
Classification is the starting point for the entire CE marking process, because it determines which conformity assessment route applies and whether a Notified Body gets involved at all.
The 22 classification rules under Annex VIII are covered separately in our EU MDR Medical Device Classification article, so they are not repeated here. Here, the focus is on what classification decides next.
Class determines which conformity assessment route applies. The routes are set out in Annex IX, Annex X and Annex XI.
| Annex | What it covers |
| Annex IX | Conformity assessment based on a quality management system together with assessment of technical documentation |
| Annex X | Assessment based on type-examination. Not a standalone route, must be paired with Annex XI Part A or Part B |
| Annex XI | Conformity assessment based on production quality assurance or product verification |
Class IIa, IIb, and III devices generally require Notified Body involvement. Class I devices, as per Article 52(7), can generally be self-declared by the manufacturer after preparing technical documentation under Annex II and Annex III, with no Notified Body needed.
But there is an important exception. Class I devices in the following situations still need a Notified Body, though the review is limited to the specific aspect flagged and not the whole device:
- Placed on the market sterile, review limited to establishing, securing and maintaining sterile conditions
- Devices with a measuring function, review limited to metrological requirements
- Reusable surgical instruments, review limited to reuse aspects such as cleaning, disinfection, sterilization and functional testing
Step-by-Step CE Marking Process
The EU MDR CE Marking Process follows a defined sequence, from classification through to affixing the mark, and each step depends on the one before it. The breakdown below covers all eleven stages, with the regulatory basis behind each one.
Step 1: Determine Device Classification
Classification is the first step because it decides the entire regulatory path that follows. Getting classification wrong early is expensive. It usually means redoing technical documentation and reopening conformity assessment applications. Classification is assessed under Annex VIII of the MDR.
Step 2: Select the Applicable Conformity Assessment Route
The conformity assessment route is determined directly by device class, once class is confirmed. The applicable procedure follows from Annex IX, Annex X or Annex XI. Higher-risk classes, particularly implantable devices and Class III devices generally, come with narrower route options and stricter Notified Body scrutiny built into the regulation itself.
Step 3: Implement a Quality Management System Aligned with ISO 13485
A documented, continually improved quality management system is a legal requirement under Article 10. Article 10 requires manufacturers, other than makers of investigational devices, to establish, document, implement, and continually improve a QMS proportionate to device risk and type. ISO 13485 is the internationally recognized standard for quality management systems (QMS), and most Notified Bodies expect manufacturers to follow it. But the legal requirement comes from the MDR, not from ISO 13485 itself.
Step 4: Prepare Technical Documentation
Technical documentation, built to Annex II and Annex III, is the backbone of the submission. Annex II generally covers:
- Device description and specification, including variants and accessories
- Design and manufacturing information
- GSPR compliance evidence
- Benefit-risk analysis and risk management output
- Verification and validation data
Annex III covers post-market surveillance documentation specifically, including the PMS plan and, where applicable, the PSUR.
Step 5: Conduct Clinical Evaluation
Clinical evaluation is required for essentially every device under Article 61. Manufacturers must plan and document the evaluation in line with Part A of Annex XIV. This includes critical evaluation of relevant scientific literature, evaluation of available clinical investigation data and consideration of alternative treatment options where relevant. The evaluation does not end at certification either. It must be kept current throughout the device lifecycle through post-market clinical follow-up, addressed in Part B of Annex XIV.
Step 6: Engage a Notified Body
If the device class requires a Notified Body, engaging one early matters, well before the technical file is finished.
Manufacturers should confirm the Notified Body’s designation scope actually covers their specific device type before applying. Once documentation is submitted, review begins and a structured back-and-forth as reviewers raise questions is standard practice.
Step 7: Undergo Conformity Assessment and Audit
This stage involves a documentation review against the applicable Annex IX, X or XI requirements. It also includes a QMS audit of the manufacturer’s facility and processes, along with the handling of any nonconformities raised by the Notified Body. The stage concludes with a certification decision.
Step 8: Receive the MDR Certificate
Once the Notified Body is satisfied, it issues a certificate under Annex IX, X or XI. Certificates are valid for a period the Notified Body specifies, not exceeding five years, and can be extended following re-assessment. This certificate is what allows the manufacturer to move to declaring conformity and affixing the CE mark.
Step 9: Register in EUDAMED and Assign UDI
Before placing a device on the market, manufacturers must submit and transfer device information to the UDI database, part of EUDAMED, under Articles 27 to 31. The UDI system has three components:
| Components | What it identifies |
| Basic UDI-DI |
Groups devices sharing intended purpose, risk class, essential design and manufacturing characteristics. Appears on the EU declaration of conformity.
|
| UDI-DI |
Specific to a manufacturer and a device model, main key for records in the UDI database
|
| UDI-PI |
Identifies the specific production unit, through elements like batch number or expiry date
|
As of 28 May 2026, the European Commission confirmed that four EUDAMED modules became mandatory to use. They are Actor registration, UDI/Device registration, Notified Bodies and Certificates and Market Surveillance.
This followed Commission Decision (EU) 2025/2371. The remaining two modules, covering post-market surveillance and vigilance, and clinical investigations, are still under development and were not yet mandatory as of that date.
Manufacturers should check the European Commission’s EUDAMED pages directly for the current state, since this is an area that continues to move.
Step 10: Issue the EU Declaration of Conformity
Under Article 19, the manufacturer prepares the EU declaration of conformity. It must include, at minimum, the information in Annex IV, such as the Basic UDI-DI, device risk class, and product identification details. Issuing this declaration means the manufacturer takes sole responsibility for the device meeting MDR requirements and any other applicable EU law.
Step 11: Affix the CE Mark
Only once conformity assessment is complete and the declaration of conformity is issued can the CE mark legally be applied, as per Article 20. Where a Notified Body was involved, its identification number accompanies the mark.
Working with a Notified Body
A few things worth checking before you commit to a Notified Body:
- Scope designation, since not every Notified Body is authorized for every device type
- Capacity, since some Notified Bodies have long queues for certain device categories
Once documentation is submitted, expect rounds of review covering both the technical file and the QMS audit, with follow-up questions. The NANDO database is the official source for checking a Notified Body’s designation and scope.
UDI and EUDAMED: What Happens After Certification
Registration sequencing matters here. Actor registration generally needs to happen before device registration and device registration before UDI assignment is finalized and market placement occurs. Manufacturers working through this sequencing today should verify current module status directly with the European Commission before finalizing internal timelines, since EUDAMED implementation continues to evolve.
Technical Documentation for CE Conformity Assessment
A complete technical file, prepared under Annex I, Annex II and Annex III, typically includes:
- Device description
- General Safety and Performance Requirements (GSPR) checklist
- Risk Management File, aligned with ISO 14971
- Verification and Validation documentation
- Clinical Evaluation Report (CER)
- Labeling and Instructions for Use (IFU)
- Post-Market Surveillance (PMS) documentation
CE Marking Timeline and Costs by Class
Timelines vary widely by class and by manufacturer readiness.
| Class | What typically adds to the timeline |
| Class I (self-declared) |
Fastest route, no Notified Body review, though QMS setup and technical documentation still take real time
|
| Class IIa | Notified Body documentation review and QMS audit scheduling |
| Class IIb |
Same as IIa, plus more extensive clinical evidence and, for implantables, technical documentation assessment on every device with certain exceptions
|
| Class III |
Longest route, given full design dossier review and for implantables, the Clinical Evaluation Consultation Procedure under Article 54
|
Official EU MDR and European Commission sources do not publish standardized Notified Body fees. And fees may vary depending on the manufacturer, device type and the selected Notified Body. In general terms, manufacturers should budget for:
- Notified Body fees
- Testing costs
- Clinical evaluation costs
- Technical documentation preparation
- Internal QMS implementation and maintenance
Common Reasons CE Marking Applications Get Delayed or Rejected
The single most avoidable delay is choosing a Notified Body too late in the process. Manufacturers finish their technical documentation and only then start scoping Notified Bodies, when that step should run in parallel from early on. Other than this there are handful of issues account for most delays and rejections:
- Incomplete technical documentation, the most frequent cause
- Weak clinical evaluation, particularly unjustified equivalence claims
- Inconsistent risk management documentation
- Labeling deficiencies
- Missing verification or validation evidence
- Poor Quality Management System implementation
- Incorrect classification, which can unravel a submission since it may mean the wrong conformity assessment route was followed from the start
- Immature Post-Market Surveillance documentation
- Delayed responses to Notified Body questions, which is not a technical failure but still adds real weeks and months to an otherwise on-track timeline
Conclusion
Classify the device correctly. That is where the EU MDR CE Marking Process actually begins, and everything else builds on it. Technical documentation gets built to Annex II and III. A genuine clinical evaluation follows under Article 61, going beyond a surface-level review. Wherever a Notified Body is required, the manufacturer works closely with them throughout the process. EUDAMED registration and UDI assignment come next. Only after all of that does the declaration of conformity get issued and only then can the CE mark be affixed.
Sequencing matters here just as much as the individual tasks. Each step depends on the one before it, so getting the order right carries real weight.
If you need support with CE marking, technical documentation, conformity assessment preparation or EU MDR regulatory strategy, reach out to the experts at info@artixio.com for guidance tailored to your product and market entry goals.
FAQs
Q1. How long does CE marking take for a Class IIb medical device?
Notified Body capacity and documentation readiness both shape how long the process takes. Add clinical evaluation complexity to that list too, especially when equivalence claims call for extra justification.
Q2. Can I obtain CE marking without a Notified Body?
Yes, for straightforward Class I devices under Article 52(7), manufacturers can self-declare after preparing technical documentation under Annex II and III. Sterile, measuring and reusable surgical Class I devices still need limited Notified Body involvement.
Q3. Is CE marking the same as EUDAMED registration?
No. CE marking under Article 20 reflects successful conformity assessment. EUDAMED registration, covering Actor registration, UDI and device data, is a separate obligation under Articles 27 to 31, and both are required before market placement where applicable.
Q4. What happens if my Notified Body certificate expires?
Certificates are valid for a period the Notified Body sets, not exceeding five years. Extensions require a re-assessment under the applicable conformity assessment procedure. This information is not specified in more granular detail in official sources and can vary by Notified Body.
Q5. Do non-EU manufacturers follow a different CE marking process?
The core EU MDR CE Marking Process, classification, technical documentation, conformity assessment and declaration of conformity applies the same way. Non-EU manufacturers have the added obligation of appointing an EU Authorised Representative and EUDAMED verification steps for that representative role.
