Article 30 13.

At the request of at least three members, or on its own initiative, where this is considered useful and/or necessary, the Chair of the CEAOB may invite experts, including practitioners, with specific competence on a subject on the agenda to participate in the CEAOB's or its sub-group's deliberations as observers. The CEAOB may invite representatives of competent authorities from third countries which are competent in the field of audit oversight to participate in the CEAOB's or its sub-group's deliberations as observers.