1. When calculating the group solvency of an insurance or reinsurance undertaking which is a participating undertaking in a third-country insurance or reinsurance undertaking, in accordance with Article 233, the third-country insurance or reinsurance undertaking shall, solely for the purposes of that calculation, be treated as a related insurance or reinsurance undertaking.

However, where the third country in which that undertaking has its head office makes it subject to authorisation and imposes on it a solvency regime at least equivalent to that laid down in Title I, Chapter VI, Member States may provide that the calculation take into account, as regards that undertaking, the Solvency Capital Requirement and the own funds eligible to satisfy that requirement as laid down by the third country concerned.

2. Where no delegated act has been adopted in accordance with paragraph 4 or 5 of this Article, the verification of whether the third-country regime is at least equivalent shall be carried out by the group supervisor at the request of the participating undertaking or on its own initiative. EIOPA shall assist the group supervisor in accordance with Article 33(2) of Regulation (EU) No 1094/2010.