(35)The use of the IRB Approach requires the approval of the competent authorities, and any material changes to that approach have to be approved. As a result, competent authorities should verify that the internal process of management and in particular the internal process of approving such changes ensure that only changes that are in accordance with Regulation (EU) No 575/2013 and Delegated Regulation (EU) No 529/2014 are implemented and, in that context, that the classification of changes is consistent in order to avoid any regulatory arbitrage.