European Union – National legislation. The Court of Justice of the European union made a preliminary ruling concerning the interpretation of arts 3(2) and 216 of the Treaty on the Functioning of the European Union, read in conjunction with art 5 of Directive (EC) 2001/77 of the European Parliament and of the Council (on the promotion of electricity produced from renewable energy sources in the internal electricity market), and the Agreement between the European Economic Community and the Swiss Confederation, as adapted by Decision 1/2000 of the EC-Switzerland Joint Committee. The request had been made in proceedings between Green Network SpA and the Autorità per l'energia elettrica e il gas concerning an administrative fine imposed by the latter on Green Network for its refusal to purchase green certificates in an amount corresponding to the quantity of electricity which that company had imported into Italy from Switzerland.