- conformément à l'article 189 du traité CE, le Parlement européen, le Conseil et la Commission doivent veiller au strict respect du principe selon lequel les directives lient tout Etat membre destinataire quant au résultat à atteindre, tout en laissant aux instances nationales la compétence quant à la forme et aux moyens ;
- in accordance with Article 189 of the EC Treaty, the European Parliament, the Council and the Commission must safeguard fully the principle according to which directives shall be binding, as to the result to be achieved, upon each Member State to which they are addressed, but shall leave to the national authorities the choice of form and methods;