1528. (1) Subject to subsection (2), the Supervisory Authority may request additional documentation on the audit work performed by any third-country auditor or third-country audit entity on a holding undertaking or on a subsidiary undertaking of a group from the relevant competent authorities from third countries through the working arrangements referred to in section 1568(1)(c) or 1569(c).

(2) Where—

(a) a statutory audit of the group financial statements of a group is carried out, and

(b) a holding undertaking or subsidiary undertaking of the group is audited by one or more third-country auditors or third-country audit entities that have no working arrangements as referred to in section 1568(1)(c) or 1569(c),

the group auditor is responsible for ensuring proper delivery, when requested, to the Supervisory Authority of the additional documentation of the audit work performed by those auditors or audit entities, including the audit working papers relevant to the group audit.

(3) To ensure such delivery, the group auditor shall retain a copy of such audit documentation, or alternatively—

(a) agree, with one or more third-country auditors or third-country audit entities concerned, arrangements for the group auditor’s proper and unrestricted access, upon request, to the documentation, or

(b) take any other appropriate action.

(4) Where audit working papers cannot, for legal or other reasons, be passed from a third country to the group auditor, the documentation retained by the group auditor shall include—

(a) evidence that he or she has undertaken the appropriate procedures in order to gain access to the audit documentation, and

(b) in the case of an impediment other than a legal one arising from legislation of the third country or countries concerned, evidence supporting the existence of such an impediment.]