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Reading a medical device certificate: CE, EU MDR, FDA and ISO 13485

What each certificate actually certifies, why a quality system certificate says nothing about a specific product, how to check that a certificate is genuine and current in about ten minutes, and why a claim printed on a datasheet is not evidence of anything.

Somewhere in every equipment tender file there is a page headed Certificate, printed in colour, carrying two or three logos and a stamp. A good proportion of the time it certifies something other than what the bidder believes it certifies, and occasionally it certifies nothing at all. Reading these documents properly is a skill that takes about an hour to acquire and saves procurement committees from a category of mistake that is very hard to unwind after award.

Start with one question: product or company

Medical device certificates fall into two families, and confusing them is the most common error in the room.

A quality system certificate, of which ISO 13485 is the relevant one, says that a named legal entity operates a management system for medical devices at named sites, within a stated scope, and that a certification body audited it. It says nothing about whether any particular device is safe, effective, or even inside the scope of the certificate.

A product conformity document, such as an EU certificate issued by a notified body or a United States clearance letter, attaches to devices. It says that this device, or this family of devices, has been assessed against a defined set of requirements.

Both are worth having. They answer different questions, and a bidder who submits one when you asked for the other has either misunderstood or is hoping you will.

DocumentWhat it actually tells youWhat it does not tell you
ISO 13485 certificateA certification body audited this company's medical device quality system, for this scope, at these sites, valid to this dateWhether the device you are buying is covered, and whether it is safe
EU certificate from a notified bodyAn independent designated body assessed this device or device family against EU medical device legislationAnything about models outside the certificate scope
Declaration of ConformityThe manufacturer formally declares the device meets the applicable legislation, names the legislation, the class, and any notified body involved. Required, and legally significantIt is the manufacturer's own statement, so it is not third party evidence on its own
United States 510(k) clearanceThe regulator agreed this device is substantially equivalent to an existing legally marketed device, and issued a number you can look upThat it was independently tested, and that the exact variant offered is included
Establishment registration or device listingThe manufacturer told the regulator that it exists and what it makesAnything at all about approval or quality. This is a notification, not an assessment
Test report to IEC 60601-1 or a related standardA laboratory tested a specific configuration and issued a report numberThat other models in the range were tested, unless the report says so

CE marking and EU MDR in practice

The current European framework is Regulation (EU) 2017/745, commonly called the MDR, which applied from May 2021 and replaced the older directives. Transition arrangements have been extended more than once, so devices still circulate on legacy certificates issued under the previous law. The certificate itself will say which legislation it was issued under and when it expires. Read those two lines first, before anything else on the page.

Devices are classified I, IIa, IIb or III by risk. The classification determines who has to be involved:

Two further details are worth checking. A manufacturer outside the European Union must appoint an authorised representative, whose name and address appear on the labelling and on the declaration of conformity. And notified bodies are designated for specific device code ranges, so a properly designated body is not thereby competent for everything. The European designation database is public and searchable, and it lists every notified body, its number, and its exact designated scope. Note also that CE marking covers the European market; Great Britain now uses a separate marking, and a device may legitimately hold one and not the other.

United States terminology: cleared, approved, registered, listed

These four words are used interchangeably in sales material and mean quite different things.

ISO 13485: read the scope, the sites and the dates

Most ISO 13485 certificates submitted in tenders are genuine. The problem is that the wrong genuine certificate is submitted, or the right one is read carelessly. Work through it in this order.

  1. Legal entity name. It must match the manufacturer named on the offered device and on the manufacturer's authorisation. A certificate belonging to a trading company, a group holding company or a contract assembler is not evidence about the factory making your goods.
  2. Site addresses. The plant that will manufacture your order must be one of the sites listed. A company with several factories is not certified at all of them by default.
  3. Scope wording. This is the sentence people skip. Design and manufacture of surgical instruments does not cover an operating table. If your product family is not described, the certificate is not about your product.
  4. Dates. Issue and expiry. An expired certificate is common in tender files, usually because nobody looked.
  5. Certification body and accreditation. The issuing body should itself be accredited by a national accreditation body that signs the international mutual recognition arrangement. Unaccredited certification exists, is legal, and is worth considerably less.

How to verify a certificate in about ten minutes

  1. Identify the issuing body from the certificate. Then find that body's website yourself by searching for its name. Do not use the link or the QR code printed on the document you are trying to verify, which is the one thing a forger controls completely.
  2. Almost every certification body publishes a searchable register. Search by certificate number, then by company name, and confirm the status is active, the expiry date has not passed, and the scope and site list match what you were given.
  3. For a European product certificate, look up the four digit notified body number in the public designation database, confirm the body is currently designated under the current legislation, and confirm that its designated scope covers the device category in question.
  4. For a United States clearance, search the clearance number in the public database and confirm the device name and manufacturer.
  5. If any of this cannot be reconciled, write to the issuing body quoting the certificate number. They answer, and they are usually quick, because unauthorised use of their mark is their problem too.

Red flags

Why a datasheet claim is not evidence

CE certified, FDA approved, ISO certified and manufactured to international standards are all sentences that can be typed by anyone. None of them contains a number, an issuer or a date, which are the only three things that make a claim checkable. Treat an uncheckable claim as absent.

There is a related and subtler distinction. Designed in accordance with IEC 60601-1 is an engineering intention. Tested to IEC 60601-1 by a named laboratory, report number and date stated is evidence. Ask for the report, and when it arrives, check which model variants and which configuration it covers, because certification is granted to specific configurations. A trolley mounted version of an approved wall mounted device is not automatically included, and a certificate covering one model in a family does not automatically extend to the one you are buying. If the offered model is not named or clearly within a named range, ask the manufacturer to confirm coverage in writing.

Putting this into your tender document

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