The Event authority table (AT) is a controlled vocabulary listing the events that are part of the legal decision making process. It was created in order to harmonize and to trace historically the various events triggered by an agent within the procedures and associated to a resource type. The various sources of information were extracted from Pegase and Prelex. The Event AT is part of the Core Metadata used in the exchange between the institutions involved in the legal decision making process and the Publications Office of the European Union. It is also used by EUR-Lex. It provides an authority code, the start-use date of the concept and labels in all official EU languages. Codes in italic are deprecated and should not be used, except in the case of back-log work. The Event AT is under governance of the Interinstitutional Metadata Maintenance Committee (IMMC) and maintained by the Publications Office of the European Union on the EU Vocabularies website.