(9)Those criteria include certain requirements which are common to two or more of Articles 378, 379 and 380 of Delegated Regulation (EU) 2015/35, which are valid at the level of solo insurance or reinsurance undertakings and at the level of insurance or reinsurance groups. We specify indeed in the current act whether we consider insurance undertakings at the individual (‘solo’) or group level, as solo undertakings may or may not be part of groups. The criteria cover the areas of powers, solvency, governance, transparency, cooperation between authorities and handling of confidential information, and impact of the decisions on financial stability.