(15)During the transitional period, equivalence decisions should not be taken by Member States at national level. The fact that auditors and audit entities that provide audit reports concerning the annual or consolidated accounts of companies incorporated in the third countries and territories listed in the Annex to this Decision may, under this Decision, continue their audit activities with regard to companies referred to in Article 45 of Directive 2006/43/EC, should not prevent Member States from establishing cooperative arrangements on individual quality assurance reviews between the competent authorities of a Member State and the competent authorities of a third country or territory.