Rédiger ainsi la seconde phrase de l’alinéa 21 : « Ils exercent dans leur domaine de compétence propre sous l’autorité du médecin-chef. » 

This procedure concerns an amendment to the wording of a specific sentence within a legal text. The proposed change clarifies the authority under which certain individuals operate within their professional domain. The amendment specifically targets the second sentence of paragraph 21, aiming to define the reporting structure to the chief medical officer.