CE marking and FDA clearance are two of the most widely recognised medical-device regulatory regimes in the world. They are also frequently misunderstood. This article explains what each means, how they differ in practice, and how to use them in buyer decisions.
CE marking under EU MDR (medical devices) and IVDR (in-vitro diagnostics) is required for any device placed on the EU market. It is a conformity assessment process — depending on device class, it involves a notified body, a technical file, a Declaration of Conformity, and an EU Authorised Representative for non-EU manufacturers. It is not a regulator-issued approval; it is a manufacturer self-declaration of conformity, audited by a notified body for higher-risk classes.
FDA clearance is regulator-issued. For most Class II devices, the pathway is 510(k) — a demonstration of substantial equivalence to a legally marketed predicate device. For Class III, the pathway is PMA — a full premarket approval requiring clinical evidence of safety and effectiveness. For some lower-risk devices, 510(k)-exempt status applies.
Practical differences for buyers: CE-marked devices are not automatically authorised in the US (and vice versa); CE marking implies notified-body audit, FDA clearance implies regulator decision; both regimes have transition periods that affect older devices (EU MDR transition extension, FDA legacy 510(k) practice).
Buyer takeaways: confirm the specific certificate / clearance number for the device you are buying; check certifying body for CE; check 510(k) / PMA reference for FDA; verify the device's UDI registration where applicable; screen against FDA import alerts before shipping into the US.