1. This Protocol shall be submitted to the Parties for ratification, acceptance or approval, and the respective instruments shall be deposited with the Government of the Portuguese Republic.
2. This Protocol shall enter into force on the date on which the Government of the Portuguese Republic receives the final instrument of ratification, acceptance or approval.
3. No Party may indicate its consent to be bound by this Protocol without having previously or concurrently indicated its consent to be bound by the Lisbon Agreement in accordance with the provisions of Article 22.
4. Following the entry into force of this Protocol, any accession to the Lisbon Agreement in accordance with the procedure laid down in Articles 23 and 24 shall also indicate consent to be bound by this Protocol, the Parties being bound by the Lisbon Agreement as amended by Article 1 of this Protocol.