Artikel 22

1. A notification of succession in respect of a multilateral treaty under article 17 or 18 shall be made in writing.
2. If the notification of succession is not signed by the Head of State, Head of Government of Minister for Foreign Affairs, the representative of the State communicating it may be called upon to produce full powers.
3. Unless the treaty otherwise provides, the notification of succession shall:
(a) be transmitted by the newly independent State to the depositary, or, if there is no depositary, to the parties or the contracting States;
(b) be considered to be made by the newly independent State on the date on which it is received by the depositary, or, if there is no depositary on the date on which it is received by all the parties or, as the case may be, by all the contracting States.
4. Paragraph 3 does not affect any duty that the depositary may have, in accordance with the treaty or otherwise, to inform the parties or the contracting States of the notification of succession or any communication made in connection therewith by the newly independent State.
5. Subject to the provision of the treaty, the notification of succession or the communication made in connection therewith shall be considered as received by the State for which it is intended only when the latter State has been informed by the depositary.