Article 22 Vienna Convention on the Law of Treaties Withdrawal of reservations and of objections to reservations (a) the withdrawal of a reservation becomes operative in relation to another contracting State only when notice of it has been received by that State; (b) the withdrawal of an objection to a reservation becomes operative only when…

Article 21 Vienna Convention on the Law of Treaties Legal effects of reservations and of objections to reservations See also: Article 20 Vienna Convention on the Law of Treaties

Article 20 Vienna Convention on the Law of Treaties Acceptance of and objection to reservations (a) acceptance by another contracting State of a reservation constitutes the reserving State a party tothe treaty in relation to that other State if or when the treaty is in force for those States;(b) an objection by another contracting State…

Article 19 Vienna Convention on the Law of Treaties Formulation of reservations A State may, when signing, ratifying, accepting, approving or acceding to a treaty, formulate areservation unless: (a) the reservation is prohibited by the treaty; (b) the treaty provides that only specified reservations, which do not include the reservation in question, may be made;…

Article 18 Vienna Convention on the Law of Treaties Obligation not to defeat the object and purpose of a treaty prior to its entry into force A State is obliged to refrain from acts which would defeat the object and purpose of a treaty when: (a) it has signed the treaty or has exchanged instruments…

Article 17 Vienna Convention on the Law of Treaties Consent to be bound by part of a treaty and choice of differing provision 1. Without prejudice to articles 19 to 23, the consent of a State to be bound by part of a treaty is effective only if the treaty so permits or the other…

Article 16 Vienna Convention on the Law of Treaties Exchange or deposit of instruments of ratification, acceptance, approval or accession Unless the treaty otherwise provides, instruments of ratification, acceptance, approval or accession establish the consent of a State to be bound by a treaty upon: (a) their exchange between the contracting States; (b) their deposit…