Official Journal of the European Union
The Official Journal of the European Union (OJEU) is the official gazette of record for the EU.
OJEU is the successor to the Official Journal of the European Community (OJEC). It is often abbreviated to "OJ" where the EU context is clear.
OJEU is only published online ("e-OJ"). Electronic editions of the OJ (e-OJ) published after 1 July 2013 have legal force ("are authentic"). The paper version no longer has legal force except when the OJ online cannot be published due to IT systems disruption.
OJEU is divided into "series".
EUR-Lex, European Union law, comprises the EU Legislation series ("L series") and the Information and Notices series ("C series" and its supplements) where other official documents of the EU institutions, bodies and agencies are found.
The supplementary "S series" deals with European public procurement. The online version is available at TED (Tenders Electronic Daily).
(Links in this entry are all to the parts of the official website of the European Union http://europa.eu)