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In those circumstances, the Oberverwaltungsgericht für das Land Nordrhein-Westfalen (Higher Administrative Court for the Land of North Rhine-Westphalia, Germany) decided to stay the proceedings and to refer the following questions to the Court of Justice for a preliminary ruling: ‘(1) Is Regulation [No 913/2010], in particular with regard to the tasks assigned to the management board for a freight corridor in Article 13(1), Article 14(9) and Article 18(c) of that Regulation, to be interpreted as meaning that the management board for a freight corridor is authorised to define the procedure for submitting applications for infrastructure capacity to the one-stop shop referred to in Article 13(1) [of that regulation] itself, for example by requiring, as in the present case, the exclusive use of an electronic booking tool, or is that procedure subject to the general provisions of Article 27(1) and (2) [of Directive 2012/34] read in conjunction with point 3(a) of Annex IV to [that directive], which means that it may be regulated solely by the infrastructure managers involved in a freight corridor in their respective network statements? (2) If the first question is to be answered to the effect that the procedure referred to in [that question] has to be regulated solely in the network statement of infrastructure managers involved in a freight corridor, is the review of that network statement by a national regulatory body governed in this respect by Article 20 of Regulation [No 913/2010] or likewise exclusively by the provisions of Directive [2012/34] and the national legislation adopted for its transposition? (a) If the review is governed by Article 20 of Regulation [No 913/2010], is it compatible with the provisions of that article for a national regulatory body to object to a regulation in the network statement such as that referred to [in the first question], without acting jointly and in a substantively uniform manner with the regulatory bodies of the [Member States other than the one concerned] involved in the freight corridor or at least consulting them beforehand in order to ensure a uniform approach? (b) In so far as the review is governed by the provisions of Directive [2012/34] and the national legislation adopted for its transposition, is it compatible with those provisions, in particular with the general duty of coordination laid down in the [second sentence of the first subparagraph of] Article 57(1) of that directive, for a national regulatory body to object to such a regulation, without acting jointly and in a substantively uniform manner with the regulatory bodies of the [Member States other than the one concerned] involved in the freight corridor or at least having consulted them beforehand in order to ensure a uniform approach? (3) If the first question is to be answered to the effect that the management board of a freight corridor is authorised to define the procedure referred to in [that question] itself, does a national regulatory body have the authority, under Article 20 of Regulation [No 913/2010] or the provisions of Directive [2012/34] and the legislation created for its transposition, to review the network statement of an infrastructure manager for more than its substantive compliance with the procedure defined by the management board and, where appropriate, to object thereto, if the network statement of an infrastructure manager contains regulations on that procedure? If this were to be answered in the affirmative, how [is the second question] to be answered with regard to this authority of the regulatory body? (4) In so far as the national regulatory bodies, on the basis of the questions above, are authorised to review the procedure referred to in [Question 1], is Article 14(1) of Regulation [No 913/2010] to be interpreted as meaning that the framework defined by the executive board under that provision is EU law which binds the national regulatory bodies and the national courts, has priority of application over national law and is subject to the ultimately binding interpretation of the [Court]? (5) If the fourth question is to be answered in the affirmative, does the designation made under Article 14(1) of Regulation [No 913/2010] by the executive boards of all of the freight corridors, pursuant to Article 8(2) of the respective framework, and according to which corridor capacity is to be published and allocated via an international application system, which must as far as possible be harmonised with the other freight corridors, preclude a decision of a national regulatory body by which an infrastructure manager involved in a freight corridor is provided, for its network statement, with stipulations for structuring that application system which are not agreed with the national regulatory bodies of the [Member States other than the one concerned] involved in the freight corridors?’