21Furthermore, it is settled case-law that a Member State may not plead provisions, practices or circumstances existing in its internal legal system in order to justify a failure to comply with the obligations and time-limits laid down in a directive (see, in particular, Case 275/83 Commission v Belgium [1985] ECR 1097, paragraph 10, Case C-298/97 Commission v Spain [1998] ECR I-3301, paragraph 14, and Case C-326/97 Commission v Belgium [1998] ECR I-6107, paragraph 7).
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