1. Member States shall ensure that all information and documents to which a statutory auditor or audit firm has access when carrying out a statutory audit are protected by adequate rules on confidentiality and professional secrecy.
2. Confidentiality and professional secrecy rules relating to statutory auditors or audit firms shall not impede enforcement of the provisions of this Directive.
3. Where a statutory auditor or audit firm is replaced by another statutory auditor or audit firm, the former statutory auditor or audit firm shall provide the incoming statutory auditor or audit firm with access to all relevant information concerning the audited entity.
4. A statutory auditor or audit firm who has ceased to be engaged in a particular audit assignment and a former statutory auditor or audit firm shall remain subject to the provisions of paragraphs 1 and 2 with respect to that audit assignment.