24Such treatment is permissible only if it pursues a legitimate objective compatible with the Treaty or is justified by overriding reasons in the public interest. It is further necessary, in such a case, that its application be appropriate to ensuring the attainment of the objective thus pursued and not go beyond what is necessary to attain it (see, in particular, Case 0446/03 Marks & Spencer [2005] ECR I-10837, paragraph 35; Case C-196/04 Cadbury Schweppes and Cadbury Schweppes Overseas [2006] ECR I-7995, paragraph 47; and Case C-347/04 Rewe Zentralfinanz [2007] ECR I-2647, paragraph 37).
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