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This application of the Publications Office of the European Union has been created to verify that documents published in the electronic version of the Official Journal of the European Union (hosted on the EUR-Lex website) have valid electronic signatures. This enables us to guarantee that the electronic version of a document has not been altered after it was published online.

Effective 1 July 2013, the only EU legislation deemed authentic is that published in the electronic editions of the OJ. The legal regime governing the OJ's authenticity was laid down in Regulation No 216/2013 on electronic publication of the Official Journal.

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