The general rule in Directive 2014/59/EU (BRRD) is that there is one resolution authority (Article 3 (1)). If there is more than one authority, the Directive does not ask for a specific basis on which responsibilities of resolution authorities should be allocated. According to Article 3 (10) of Directive 2014/59/EU (BRRD), Member States are required to ensure that functions and responsibilities are allocated clearly between authorities in case there is more than one, and that adequate cooperation is in place. In addition, one authority shall be designated as a contact authority for the purposes of cooperation and coordination with the relevant authorities of other Member States.

Disclaimer:

This question goes beyond matters of consistent and effective application of the regulatory framework. A Directorate General of the Commission (Directorate General Financial Stability, Financial Services and Capital Markets Union) has prepared the answer, albeit that only the Court of Justice of the European Union can provide definitive interpretations of EU legislation. This is an unofficial opinion of that Directorate General, which the European Banking Authority publishes on its behalf. The answers are not binding on the European Commission as an institution. You should be aware that the European Commission could adopt a position different from the one expressed in such Q&As, for instance in infringement proceedings or after a detailed examination of a specific case or on the basis of any new legal or factual elements that may have been brought to its attention.