Cooperation with national courts
Article 29
1. For the application of Article 107(1) and Article 108 TFEU, the courts of the Member States may ask the Commission to transmit to them information in its possession or its opinion on questions concerning the application of State aid rules. 2. Where the coherent application of Article 107(1) or Article 108 TFEU so requires, the Commission, acting on its own initiative, may submit written observations to the courts of the Member States that are responsible for applying the State aid rules. It may, with the permission of the court in question, also make oral observations. The Commission shall inform the Member State concerned of its intention to submit observations before formally doing so. For the exclusive purpose of preparing its observations, the Commission may request the relevant court of the Member State to transmit documents at the disposal of the court, necessary for the Commission's assessment of the matter.