This Convention shall be subject to adoption by the Member States in accordance with their respective constitutional requirements.

Member States shall notify the Secretary-General of the Council of the European Union of the completion of the constitutional procedures for the adoption of this Convention.

This Convention shall enter into force 90 days after the notification referred to in paragraph 2 by the State, Member of the European Union at the time of adoption by the Council of the Act drawing up this Convention, which is last to complete that formality.

Until this Convention enters into force, any Member State may, when giving the notification referred to in paragraph 2, or at any other time, declare that as far as it is concerned this Convention shall apply to its relations with Member States that have made the same declaration. Such declarations shall take effect 90 days after the date of deposit thereof.

This Convention shall apply only to requests submitted after the date on which it enters into force or is applied as between the requested Member State and the requesting Member State.