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What is MHRA and How It Regulates Devices

Introduction

The Medicines and Healthcare products Regulatory Agency — the MHRA — is the UK government body responsible for ensuring that medicines, medical devices and blood products are safe and effective. For medical devices, the MHRA sets the rules for how devices are assessed, registered and monitored in the UK market. It enforces those rules through inspections, field safety notices and, where necessary, market withdrawal.

This guide explains what the MHRA does, how it regulates medical devices in the UK, what UKCA marking and device registration mean in practice, and what buyers, suppliers and distributors need to understand when working with the UK market.

Three things the MHRA does

The MHRA's role in medical devices covers three main areas — setting the rules, overseeing compliance, and taking action when something goes wrong.

Pre-market oversight: the MHRA sets the requirements for placing a device on the UK market — including conformity assessment, UKCA marking and registration with the MHRA database.
Post-market surveillance: the MHRA monitors devices once they are on the market through vigilance reporting, adverse event reporting, field safety notices and recall coordination. The MHRA has powers to investigate non-compliant devices, issue alerts, require recalls and take legal action against manufacturers and suppliers who breach UK regulations.

Key elements of MHRA device regulation

UK MDR 2002 and amendments, the core legislation governing medical devices in Great Britain, is the Medical Devices Regulations 2002 as amended. It sets out classification, conformity assessment and registration requirements for the GB market.
UK and CA: the UK Conformity Assessed mark replaced CE marking for the GB market after Brexit. Manufacturers must carry out UK conformity assessment and affix the UKCA mark before placing most devices on the market in England, Scotland or Wales. Northern Ireland follows a different pathway.
Device registration: manufacturers and authorised representatives must register medical devices with the MHRA before placing them on the UK market. Registration is via the MHRA's online portal and records the manufacturer, device type and UK representative.
UK Approved Bodies for higher-risk devices (Class IIa, IIb and III, and some Class I), an independent UK Approved Body must review and approve the conformity assessment before a UKCA certificate is issued. The MHRA designates and oversees these bodies. The MHRA is implementing UDI requirements, requiring devices to carry a unique identifier that enables tracking through the supply chain and post-market surveillance. Manufacturers and importers of medical devices must report serious incidents to the MHRA. The MHRA publishes Field Safety Notices and Medical Device Alerts when action is needed across the market.
CE marking transitional arrangements after Brexit: CE-marked devices were accepted in GB under transitional arrangements. These are being phased out, and the MHRA has published updated timelines — manufacturers should check the current position for their device class.
The MHRA has enforcement powers to inspect manufacturers and distributors, issue recall notices, prosecute for regulatory breaches, a nd restrict market access for non-compliant devices.

MHRA device classification and requirements

The UK uses a four-class system for medical devices, broadly aligned with EU classification, with requirements increasing with risk.

Class	Risk level	Conformity route	Approved Body needed?
Class I	Low	Self-declaration by the manufacturer	No (except sterile, measuring, reusable surgical)
Class IIa	Medium-low	Conformity assessment	Yes
Class IIb	Medium-high	Conformity assessment	Yes
Class III	High	Full quality assurance and design examination	Yes

IVDs (in vitro diagnostics) follow a separate classification and conformity assessment route under the UK IVDR framework, which the MHRA is updating.

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What the MHRA regulation means for buyers

Understanding the MHRA's role helps buyers make better procurement decisions and avoid compliance risk.

Registered devices: only purchase devices that are registered with the MHRA for the GB market. Ask suppliers to confirm registration and provide the MHRA registration reference.
UKCA or an accepted CE marking confirms that the device carries the appropriate marking for the UK market. During transitional periods, CE marking may be accepted — but confirm the current status for the specific device class.
An authorised representative in the UK of non-UK manufacturers must have a UK Responsible Person registered with the MHRA. Check the device label or the Declaration of Conformity for this information.
Check for MHRA alerts before committing to a significant purchase. Search the MHRA's Field Safety Notice and Medical Device Alert database for any notices relating to the device or manufacturer.
Keep procurement records and maintain records of the MHRA registration check, the compliance documents received, and the verification date for audit purposes.

NHS procurement frameworks typically require MHRA registration as a condition of supplier approval. Private sector and independent healthcare buyers should apply the same standard.

How to verify MHRA registration

Verification takes a few minutes if you know where to look.

Ask the supplier for the MHRA registration reference. A registered device will have an MHRA registration number or reference that can be checked online.
Search the MHRA device registry. The MHRA maintains a public register of registered devices and manufacturers. Search by manufacturer name or device type.
Check the UK Approved Body certificate for Class IIa and above, or the UKCA certificate from the UK Approved Body, confirming the certifying body name and certificate number.
Review the Declaration of Conformity, confirm it references the UK MDR 2002 (or relevant amendment), names the UK Responsible Person, and matches the device you are purchasing.
Search MHRA alerts and notices. Run a search on the MHRA's published Field Safety Notices and Medical Device Alerts for the manufacturer and device name.
Document your checks. KS, record the date, the sources checked, and the outcome of your verification for procurement compliance purposes.

If the supplier cannot provide an MHRA registration reference or UKCA documentation for a device that requires it, do not proceed with the purchase until the issue is resolved.

Common MHRA compliance mistakes

These are the most common errors when dealing with MHRA requirements in medical device procurement.

Assuming CE marking is enough for the UK since Brexit; CE marking alone no longer provides automatic market access in Great Britain. Confirm UKCA status or accepted CE marking under current MHRA transitional rules.
Non-UK manufacturers who are missing the UK Responsible Person must register one. Devices without one are non-compliant for the GB market, regardless of other approvals.
Not checking MHRA alerts, field safety notices, and medical device alerts can affect devices already in use. Build a routine check into procurement and stock management.
Overlooking IVD-specific rules, in vitro diagnostics follow different classification and conformity assessment routes from general medical devices. Do not apply general device rules to IVD procurement without checking the specific requirements.
Treating Northern Ireland as GB means it follows a different regulatory pathway and continues to accept CE-marked devices under the Windsor Framework. Separate checks are needed.

How MHRA fits within global regulation

The MHRA is the UK regulator, but UK-registered devices often hold approvals in other markets as well.

Region	Regulator	Relationship with MHRA
United Kingdom	MHRA	MHRA is the primary regulator; UKCA marking is required for GB
European Union	European Commission	EU MDR separate; CE marking no longer automatic in GB
United States	FDA	FDA operates independently; no formal mutual recognition with the MHRA
Gulf (GCC)	SFDA & GCC bodies	SFDA uses CE/FDA as supporting evidence; UKCA is less commonly accepted
South Africa	SAHPRA	SAHPRA recognises CE and FDA; UKCA acceptance is developing

The MHRA has signed recognition agreements with some regulators and continues to develop international collaboration, but device manufacturers typically need separate approvals for each market.

Disclaimer

This article is for general information only and does not constitute legal, regulatory, procurement or clinical advice. MHRA regulations, UKCA requirements, transitional arrangements and enforcement policies change over time. Always verify current requirements with the MHRA directly and consult a qualified UK regulatory affairs professional for advice specific to your device and organisation. medigear.UK accepts no liability for actions taken based on this content.

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Frequently Asked Questions

The Medicines and Healthcare products Regulatory Agency is the UK government body responsible for ensuring that medicines, medical devices and blood products are safe and effective. For medical devices, the MHRA sets and enforces the rules for placing devices on the UK market, monitors them once on the market, and takes action — including recalls and prosecutions — when devices are non-compliant or cause harm.

UKCA stands for UK Conformity Assessed. It is the mark that replaced CE marking for placing most medical devices on the market in Great Britain (England, Scotland and Wales) after the UK left the EU. Manufacturers must carry out a UK conformity assessment and register with the MHRA before affixing the UKCA mark. Northern Ireland continues to use CE marking under the Windsor Framework.

Yes. Manufacturers and authorised representatives must register their devices with the MHRA before placing them on the GB market. Registration is done through the MHRA's online portal. Failure to register is a regulatory offence and can result in enforcement action. NHS procurement frameworks also typically require MHRA registration as a condition of supplier approval.

A UK Approved Body is an organisation designated by the MHRA to assess whether higher-risk medical devices meet UK regulatory requirements. For Class IIa, IIb and III devices, the manufacturer must engage a UK Approved Body to review their technical documentation and quality management system before a UKCA certificate can be issued. These bodies are equivalent to EU-notified bodies.

Serious incidents involving medical devices — where a device has or could have caused serious injury or death — must be reported to the MHRA by manufacturers and importers. Healthcare professionals and patients can report concerns through the MHRA's Yellow Card scheme. The MHRA investigates and, where necessary, issues Field Safety Notices or Medical Device Alerts.

CE marking is accepted in Great Britain under transitional arrangements, but these are being phased out. The MHRA has published a roadmap for ending CE marking acceptance, with timelines varying by device class. Manufacturers should check the current MHRA guidance for their specific device class and plan the transition to UKCA marking accordingly. Northern Ireland continues to accept CE marking.

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What is MHRA and How It Regulates Medical Devices