Article 15 of Directive 79/267/EEC shall be replaced by the following:
'Article 15
1. The financial supervision of an assurance undertaking, including that of the business it carries on either through branches or under the freedom to provide services, shall be the sole responsibility of the home Member State. If the competent authorities of the Member State of the commitment have reason to consider that the activities of an assurance undertaking might affect its financial soundness, they shall inform the competent authorities of the undertaking's home Member State. The latter authorities shall determine whether the undertaking is complying with the prudential principles laid down in this Directive.
2. That financial supervision shall include verification, with respect to the assurance undertaking's entire business, of its state of solvency, the establishment of technical provisions, including mathematical provisions, and of the assets covering them, in accordance with the rules la