1. Documents and particulars which must be disclosed pursuant to Article 2 shall be drawn up and filed in one of the languages permitted by the language rules applicable in the Member State in which the file referred to in Article 3(1) is opened.
2. In addition to the mandatory disclosure referred to in Article 3, Member States shall allow documents and particulars referred to in Article 2 to be disclosed voluntarily in accordance with Article 3 in any official language(s) of the Community.
Member States may prescribe that the translation of such documents and particulars be certified.
Member States shall take the necessary measures to facilitate access by third parties to the translations voluntarily disclosed.
3. In addition to the mandatory disclosure referred to in Article 3, and to the voluntary disclosure provided for under paragraph 2 of this Article, Member States may allow the documents and particulars concerned to be disclosed, in accordance with Article 3, in any other