Introduction and legal basis

1. The EBA has been working on identifying the main drivers of variability in the implementation of IRB models in light of concerns that were raised about the lack of comparability of capital requirements determined under the IRB Approach across institutions. In the course of this work, a substantial number of areas were identified as potential sources of variability and the EBA published a discussion paper on the future of the IRB Approach (EBA/DP/2015/01) in March 2015, which detailed the EBA's proposed regulatory response to the identified issues. This is a follow-up action on the content of the regulatory review of the IRB Approach within the scope of the CRR.