This guidance document outlines the activities to be performed by notified bodies as part of  the appropriate surveillance defined in Article 120(3) second subparagraph MDR. In order to clarify elements to be verified by notified bodies, this guidance document also covers requirements concerning certain manufacturers’ obligations, especially in respect to their quality management system.

The document applies to notified bodies that have lawfully issued certificates under the MDD or the AIMDD, regardless of whether or not those notified bodies have applied for designation or are designated under the MDR (see MDCG 2019-10 rev.19
) as long as the respective authority responsible for notified bodies has the right to and does monitor notified body’s activities under Article 120(3) MDR.


MDCG 2022-4 rev.1 – Guidance on appropriate surveillance regarding MDR Art.120 transitional provisions – devices covered by MDD or AIMDD certificates – December 2022