Page:Vienna Convention on the Law of Treaties between States and International Organizations or Between International Organizations (1986).djvu/10



The consent of a State or of an international organization to be bound by a treaty is expressed by accession when:

(a) the treaty provides that such consent may be expressed by that State or that organization by means of accession;

(b) it is otherwise established that the negotiating States and negotiating organizations or, as the case may be, the negotiating organizations were agreed that such consent may be expressed by that State or that organization by means of accession; or

(c) all the parties have subsequently agreed that such consent may be expressed by that State or that organization by means of accession.

1.Unless the treaty otherwise provides, instruments of ratification, instruments relating to an act of formal confirmation or instruments of acceptance, approval or accession establish the consent of a State or of an international organization to be bound by a treaty between one or more States and one or more international organizations upon:

(a) their exchange between the contracting States and contracting organizations;

(b) their deposit with the depositary; or

(c) their notification to the contracting States and to the contracting organizations or to the depositary, if so agreed.

2. Unless the treaty otherwise provides, instruments relating to an act of formal confirmation or instruments of acceptance, approval or accession establish the consent of an international organization to be bound by a treaty between international organizations upon:

(a) their exchange between the contracting organizations;

(b) their deposit with the depositary; or

(c) their notification to the contracting organizations or to the depositary, if so agreed.