Artikel 20

1. This Protocol shall enter into force twelve months following the date on which 10 States have either signed it without reservation as to ratification, acceptance or approval or have deposited instruments of ratification, acceptance, approval or accession with the Secretary-General.
2. For any State which ratifies, accepts, approves or accedes to this Protocol after the conditions in paragraph 1 for entry into force have been met, this Protocol shall enter into force three months after the date of deposit by such State of the appropriate instrument, but not before this Protocol has entered into force in agreement with paragraph 1.