It is published every working day in all of the official languages of the member states of the EU.

[citation needed] On 1 July 2013, published issues of the Official Journal began to have legal value only in electronic form, per Article 5 of Regulation (EU) No 216/2013.

[5] Each issue is published as a set of documents in PDF/A format (one per official language) plus one XML document ensuring the overall coherency through hashes and a qualified electronic signature (a kind of digital signature defined in European law) extended with a trusted time stamp.

In this new production mode, the Official Journal is no longer a collation of acts with a table of contents.

Instead, each act is published individually as an authentic Official Journal in PDF format.