Judgment_paragraph 12 · Commission of the European Communities v Portuguese Republic (C-70/99)

12By analogy with the case-law of the Court of Justice concerning charges for port services, and in particular Case C-18/93 Corsica Ferries [1994] ECR I-1783 and Case C-381/93 Commission v France [1994] ECR I-5145, the Commission takes the view that national legislation which differentiates between domestic flights and flights to other Member States and offers a particular advantage to domestic passengers constitutes a restriction of the freedom to provide air-transport services. In Commission v France, the Court emphasised that, in the perspective of a single market and in order to permit the realisation of its objectives, the freedom to provide services precludes the application of any national legislation which has the effect of making the provision of services between Member States more difficult than the provision of services purely within one Member State.