For the purposes of this Title, medical devices other than active implantable medical devices are divided into four classes known as Class I, Class IIa, Class IIb and Class III.
Whether a device belongs to one or other of these classes is determined in accordance with the classification rules defined, on a proposal from the Director General of the Agence nationale de sécurité du médicament et des produits de santé, by order of the Minister for Health.
These rules take account of the dangerousness of medical devices in terms of their intended use.