Choosing a UK Approved Body for medical devices

UK Approved Bodies are organisations designated by MHRA to conduct conformity assessments for medical devices seeking UKCA marking. Whether you need a UK Approved Body depends on your device's risk class.

When you need a UK Approved Body

• Class I (non-sterile, non-measuring) - not required. Self-certification by the manufacturer.
• Class Is (sterile) - required for sterility aspects only.
• Class Im (measuring) - required for metrological aspects only.
• Class IIa - required. Options include product verification, quality system audit, or type-examination.
• Class IIb - required. Full type-examination or full quality assurance system audit.
• Class III - required. Full design examination and quality system assessment, including clinical data review.
• Active implantable devices - required. Full assessment under Part III of the Regulations.
• IVDs (Annex II List A and B, self-testing) - required.

How to select an Approved Body

Choose your UK Approved Body based on:

• Scope of designation - not all bodies cover all device types. Check whether the body is designated for Part II (general medical devices), Part III (active implantable), or Part IV (IVDs).
• Device specialisation - some bodies have greater experience with specific device types (for example, software, implantables, diagnostics).
• Capacity and timelines - assessment timelines vary. Contact multiple bodies to compare availability.
• Cost - fees are set commercially by each body. Request quotes from at least two bodies.

Several bodies, including BSI Assurance UK Ltd, DEKRA Certification UK Ltd and TUV SUD BABT, are designated across Parts II, III and IV and can assess active implantable devices. Nine UK Approved Bodies are listed; check each body's current designation scope for your device type before applying.

The conformity assessment process

The typical process involves:

1. Submit application to your chosen UK Approved Body with technical documentation
2. Body reviews documentation and conducts quality system audit (if applicable)
3. Address any non-conformities raised during assessment
4. Body issues certificate of conformity
5. You draw up your UK Declaration of Conformity and affix the UKCA mark with the body's identification number

Certificates are typically issued for a period of up to 5 years and must be renewed before expiry. The UK Approved Body will conduct periodic surveillance audits during the certificate validity period.