When the number of expressed or tacit accessions represents at least two-thirds of the governments of the High Contracting Parties, the Government of the Netherlands will certify the fact by means of a procès-verbal which it will communicate to the Office International d’Hygiène Publique and to the governments of all the High Contracting Parties. The protocol will enter into force between the High Contracting Parties mentioned in the said procès-verbal, after a period of 6 months from the date of the procès-verbal. The present convention will continue to be applied without modification by the other High Contracting Parties until such time as they shall have acceded to the protocol.
Date; open one year for signature. The present convention shall bear today’s date and may be signed within 1 year from this date.
Ratification. The present convention shall be ratified and the ratifications shall be deposited with the Government of the Netherlands as soon as possible.
As soon as 10 ratifications have been deposited, the Government of the Netherlands will draw up a procès-verbal and transmit copies of the procès-verbal to the governments of the High Contracting Parties and to the Office International d’Hygiène Publique. This convention shall come into force on the one hundred and twentieth day after the date of the said procès-verbal.Each subsequent deposit of ratification will be notified by a procès-verbal prepared and communicated according to the procedure indicated above. This convention shall come into force in regard to each of the High Contracting Parties on the one hundred and twentieth day following the date of the procès-verbal attesting the deposit of its ratification.