According to Article 4(46) PSD2 „own funds“ means funds as defined in point 118 of Article 4(1) of Regulation (EU) No 575/2013 where at least 75 % of the Tier 1 capital is in the form of Common Equity Tier 1 capital as referred to in Article 50 of that Regulation and Tier 2 is equal to or less than one third of Tier 1 capital. The PSD2 only refers to the definition in Regulation (EU) No 575/2013. In addition to definitions and requirements for the components of own funds, Part 2 of Regulation (EU) No 575/2013 also contain, among other things, the obligation to notify a reduction in own funds and the requirement for authorisation from the supervisory authorities to reduce own funds (Articles 77, 78 of Regulation (EU) No 575/2013). Article 26(3) of Regulation (EU) No 575/2013 contains the evaluation of the competent authorities whether issuances of Common Equity Tier 1 instruments meet the criteria set out in Article 28 or, where applicable, Article 29 of Regulation (EU) No 575/2013.