Artikel 2

1. Any dispute which might arise between two or more States Parties to the present Protocol concerning the interpretation or application of the Convention shall be submitted, on the application of one of the parties to the dispute or by special agreement, to the European Tribunal constituted in conformity with the provisions of Part III of the present Protocol. The States Parties to the present Protocol undertake not to submit such a dispute to a different mode of settlement.
2. If the dispute concerns a question arising in proceedings instituted before a court of one State Party to the Convention against another State Party to the Convention, or a question arising in proceedings instituted before a court of a State Party to the Convention in accordance with Article 21 of the Convention, it may not be referred to the European Tribunal until the court has given a final decision in such proceedings.
3. Proceedings may not be instituted before the European Tribunal which relate to a dispute concerning a judgment which it has already determined or is required to determine by virtue of Part I of this Protocol.