(4)The ECB is also responsible, pursuant to Article 4(1)(d) of Regulation (EU) No 1024/2013, for granting prior permission to significant supervised entities to reduce, redeem or repurchase Common Equity Tier 1 instruments issued by them in a manner that is permitted under national law and to effect the call, redemption, repayment or repurchase of Additional Tier 1 or Tier 2 instruments, prior to the date of their maturity.