The European Banking Authority has published a no-action letter in response to the European Commission's postponement of the application of the revised market risk framework, also known as the Fundamental Review of the Trading Book. In the no-action letter, the EBA recommends that competent authorities should not prioritize any supervisory or enforcement action relating to the amendments to the provisions setting the boundary between the banking and trading books, or those defining internal risk transfers between books. The EBA also clarifies that the points it made in its separate no-action letter on the same topic issued in 2023 should remain applicable. The EBA considers that the front-loaded application of the revised provisions on the boundary and internal risk transfers, compared to the rest of the FRTB framework, would subject institutions to an operationally complex, fragmented, and costly two-step implementation. There are also no jurisdictions at the global level that envisage such a two-step implementation of the FRTB framework. This means that a front-loaded application of the boundary provisions would lead to global institutions being subject to very different regulatory requirements depending on where the risk management is performed, leading to a fragmentation of the regulatory framework. In a separate document, the EBA shares some considerations on technical questions and implementation issues arising from the postponement, that were deemed material and relevant with a view to achieving a harmonised implementation of the market risk framework across institutions during the postponement period. The EBA also provides clarity on the supervisory benchmarking exercise. The EBA considers that a legislative proposal to provide the necessary legal certainty should be introduced by the European Commission, under an accelerated adoption procedure by the European Parliament and the Council of the European Union, if possible.