The Formation of the Court authority table (AT) is a controlled vocabulary showing the composition of the courts of the European Union according to the case they are seized with (Articles 251, 254 and 257 of the Treaty on Functioning of the European Union (TFEU). This AT provides an authority code, the start-use date of the concept and labels in all official EU languages. The concepts are used for the production of reports of cases before the Court and to publish case-law on the EUR-Lex site. The Formation of the Court AT is used in an IMMC extension for which only one institution is the source (Court of Justice). It is maintained by the Publications Office of the European Union on the EU Vocabularies website.