Article 21

1. This Treaty is signed in a single original in English, Arabic, Chinese, French, Russian and Spanish languages, the versions in all these languages being equally authentic.

2. An official text in any language other than those referred to in Article 21(1) shall be established by the Director-General of WIPO on the request of an interested party, after consultation with all the interested parties. For the purposes of this paragraph, ‘interested party’ means any Member State of WIPO whose official language, or one of whose official languages, is involved and the European Union, and any other intergovernmental organization that may become party to this Treaty, if one of its official languages is involved.