32In that regard, it must be noted that, in the context of the cooperation between the Court of Justice and the national courts provided for by Article 267 TFEU, it is solely for the national court before which the dispute has been brought, and which must assume responsibility for the subsequent judicial decision, to determine, in the light of the particular circumstances of the case before it, both the need for a preliminary ruling in order to enable it to deliver judgment and the relevance of the questions which it submits to the Court. The right to determine the questions to be put to the Court thus devolves upon the national court alone and the parties to the main proceedings may not change their tenor (see, inter alia, Case C-138/08Hochtief and Linde-Kca-Dresden [2009] ECR I-9889, paragraphs 20 and 21 and the case-law cited).