1. Each Member State shall require every assurance undertaking whose head office is situated in its territory to produce an annual account, covering all types of operation, of its financial situation and solvency.
2. Member States shall require assurance undertakings with head offices within their territories to render periodically the returns, together with statistical documents, which are necessary for the purposes of supervision. The competent authorities shall provide each other with any documents and information that are useful for the purposes of supervision.
3. Every Member State shall take all steps necessary to ensure that the competent authorities have the powers and means necessary for the supervision of the business of assurance undertakings with head offices within their territories, including business carried on outside those territories, in accordance with the Council directives governing those activities and for the purpose of seeing that they are implemented.