19In view of the wording of the preliminary questions, it should be remembered that the Court has consistently held that it does not have jurisdiction to rule on the compatibility of a national measure with Community law. However, the Court is competent to provide the national court with all criteria for the interpretation of Community law which may enable it to determine the issue of compatibility for the purposes of the decision in the case before it (see in particular Case C-63/94 Groupement National des Négociants en Pommes de Terre de Belgique (Belgapom) [1995] ECR I-2467, paragraph 7).
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