52It is settled case-law that the letter of formal notice from the Commission to the Member State concerned and then the reasoned opinion issued by it delimit the subject-matter of the dispute, with the result that that subject-matter cannot subsequently be extended. Consequently, the reasoned opinion and the application must be based on the same complaints (see, inter alia, Case C-191/95 Commission v Germany [1998] ECR I-5449, paragraph 55, and Case C-139/00 Commission v Spain [2002] ECR I-6407, paragraph 18).
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