The Court of Justice of the European Union is composed of as many judges as there are Member States. At present it has fifteen judges assisted by eight advocates-general appointed for six years by agreement among the Member States.
It may sit in chambers, or in plenary session for cases that are particularly important or complex and at the request of a Member State.
It has two principal functions:
to check whether instruments of the European institutions and of governments are compatible with the Treaties;
to pronounce, at the request of a national court, on the interpretation or the validity of provisions contained in Community law.
The Court is assisted by the Court of First Instance of the European Communities (CFI), which was set up in 1989.
The Treaty of Nice put in place a major reform of the Union's court system. As far as the Court of Justice is concerned, the most important points are the following:
greater flexibility to adapt the statute of the Court of Justice, which can now be amended by the Council, acting unanimously at the request of the Court or the Commission;
approval of the Court's Rules of Procedure by the Council is now done by qualified majority;
a new Article 229a of the EC Treaty enables the Court to be awarded jurisdiction in disputes relating to Community industrial property rights, by unanimous decision by the Council and after ratification by the national parliaments;
a better division of powers between the CFI and the Court, relieving the latter of some of its workload.
See:
The Court of First Instance of the European Communities (CFI)