Medical Device Regulation in Northern Ireland under EU MDR and IVDR

1. Post-Brexit regulatory context

Following the UK’s withdrawal from the European Union, the regulation of medical devices in Northern Ireland (NI) differs from that in Great Britain. Under the Northern Ireland Protocol and subsequent arrangements, EU medical device legislation continues to apply in NI. As a result, medical devices and in vitro diagnostic medical devices (IVDs) placed on the NI market must comply with the EU Medical Devices Regulation (MDR) and In Vitro Diagnostic Medical Devices Regulation (IVDR). Source: Medical devices: EU regulations for MDR and IVDR

2. Applicable EU regulations

The following EU regulations apply directly in Northern Ireland:

• Regulation (EU) 2017/745 on medical devices (MDR)
• Regulation (EU) 2017/746 on in vitro diagnostic medical devices (IVDR)

These regulations set out comprehensive requirements for device safety, performance, clinical evidence, conformity assessment, and post-market surveillance. Source: Medical devices: EU regulations for MDR and IVDR

3. CE marking and market access in Northern Ireland

Devices placed on the Northern Ireland market must bear a CE marking to demonstrate conformity with MDR or IVDR. Where conformity assessment involves a UK Approved Body, the device must carry both the CE marking and the UK(NI) indication. UKCA marking alone is not sufficient for placing devices on the NI market. Source: Medical devices: EU regulations for MDR and IVDR

4. Role of conformity assessment bodies

For higher-risk devices requiring third-party conformity assessment:

• EU Notified Bodies may be used for CE certification applicable in NI
• UK Approved Bodies may also be used, but devices assessed by them must include the UK(NI) marking alongside the CE mark

The choice of assessment body affects where the device can be placed on the market. Source: Medical devices: EU regulations for MDR and IVDR

5. Economic operators and responsibilities

Manufacturers placing devices on the NI market must comply with MDR/IVDR obligations, including:

• Appointing an EU Authorised Representative where required
• Ensuring appropriate quality management systems
• Meeting traceability and Unique Device Identification (UDI) requirements

Other economic operators, such as importers and distributors, also have defined responsibilities under EU law. Source: Medical devices: EU regulations for MDR and IVDR

6. Registration and oversight

Devices placed on the NI market must be registered in accordance with EU requirements. While the Medicines and Healthcare products Regulatory Agency (MHRA) remains the competent authority in NI, it enforces EU MDR and IVDR rather than the GB medical device regime. Source: Medical devices: EU regulations for MDR and IVDR

7. Post-market surveillance and vigilance

Manufacturers must operate post-market surveillance systems in line with MDR and IVDR, including:

• Reporting serious incidents and field safety corrective actions
• Conducting post-market clinical follow-up where required
• Cooperating with competent authorities on safety investigations

These obligations ensure ongoing protection of patients and users in Northern Ireland. Source: Medical devices: EU regulations for MDR and IVDR

8. Practical implications for manufacturers

Companies supplying both Great Britain and Northern Ireland must manage dual regulatory pathways, as GB follows UK-specific rules while NI remains aligned with EU MDR and IVDR. Strategic planning is essential to ensure continued market access and compliance across all UK regions. Source: Medical devices: EU regulations for MDR and IVDR