Article 91 Chicago Convention

Ratification of Convention

(a) This Convention shall be subject to ratification by the signatory States. The instruments of ratification shall be deposited in the archives of the Government of the United States of America, which shall give notice of the date of the deposit to each of the signatory and adhering States.

(b) As soon as this Convention has been ratified or adhered to by twentysix States it shall come into force between them on the thirtieth day after deposit of the twenty-sixth instrument. It shall come into force for each State ratifying thereafter on the thirtieth day after the deposit of its instrument of ratification.

(c) It shall be the duty of the Government of the United States of America to notify the government of each of the signatory and adhering States of the date on which this Convention comes into force.

See also: Article 90 Chicago Convention