1. Before taking resolution action or exercising the power to write down or convert relevant capital instruments and eligible liabilities in accordance with Article 59 resolution authorities shall ensure that a fair, prudent and realistic valuation of the assets and liabilities of the institution or entity referred to in point (b), (c) or (d) of Article 1(1) is carried out by a person independent from any public authority, including the resolution authority, and the institution or entity referred to in point (b), (c) or (d) of Article 1(1). Subject to paragraph 13 of this Article and to Article 85, where all the requirements laid down in this Article are met, the valuation shall be considered to be definitive.