++++ Member States - Obligations - Implementation of directives - Failure to fulfil obligations - Justification - Not permissible (EEC Treaty, Art. 169)
As the Court has consistently held (see in particular the judgment in Case C-374/89 Commission v Belgium [1991] ECR I-367), a Member State may not plead provisions, practices or circumstances of its own legal system in order to justify a failure to comply with obligations and time-limits resulting from Community law. This same case-law establishes that practical difficulties which appear at the stage when a Community measure is put into effect cannot permit a Member State unilaterally to opt out of fulfilling its obligations.