1. The competent authorities of Member States responsible for approval, registration, quality assurance, inspection and discipline, the competent authorities designated in accordance with Article 20 of Regulation (EU) No 537/2014 and the relevant European Supervisory Authorities shall cooperate with each other whenever necessary for the purpose of carrying out their respective responsibilities and tasks under this Directive and Regulation (EU) No 537/2014. The competent authorities in a Member State shall render assistance to competent authorities in other Member States and to the relevant European Supervisory Authorities. In particular, competent authorities shall exchange information and cooperate in investigations relating to the carrying-out of statutory audits.
2. The obligation of professional secrecy shall apply to all persons who are employed or who have been employed by competent authorities. Information covered by professional secrecy may not be disclosed to any other person
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