1.Supplementary supervision shall be exercised by the competent authorities of the Member State in which the insurance undertaking has received official authorisation under Article 6 of Directive 73/239/EEC or Article 6 of Directive 79/267/EEC.
2.Where insurance undertakings authorised in two or more Member States have as their parent undertaking the same insurance holding company, reinsurance undertaking, non-member-country insurance undertaking or mixed-activity insurance holding company, the competent authorities of the Member States concerned may reach agreement as to which of them will be responsible for exercising supplementary supervision.
3.Where a Member State has more than one competent authority for the prudential supervision of insurance undertakings and reinsurance undertakings, such Member State shall take the requisite measures to organise coordination between those authorities.