19On that point, it should be observed that, according to settled case-law, it is solely for the national courts before which proceedings are pending, and which mustassume responsibility for the judgment to be given, to determine in the light of the particular circumstances of each case both the need for a preliminary ruling to enable them to give judgment and the relevance of the questions which they submit to the Court (see, inter alia, Case C-264/96ICI v Colmer (HMIT) [1998] ECR I-4695, paragraph 15, and Joined Cases C-215/96 and C-216/96Bagnasco and Others [1999] ECR I-135, paragraph 20). Consequently, Darbo's requestthat the question be reformulated in the terms which it indicates cannot be granted.