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ARTICLE-8: Subsequent confirmation of an act performed without authorization     [go to this ARTICLE]
... An act relating to the conclusion of a treaty performed by a person who cannot be considered under article 7 as authorized to represent a State for that purpose is without legal effect unless afterwards confirmed by that State. ...


ARTICLE-17: Consent to be bound by part of a treaty and choice of differing provisions     [go to this ARTICLE]
... 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 contracting States so agree. ...


ARTICLE-21: Legal effects of reservations and of objections to reservations     [go to this ARTICLE]
... 1. A reservation established with regard to another party in accordance with articles 19, 20 and 23: ...


ARTICLE-27: Internal law and observance of treaties     [go to this ARTICLE]
... A party may not invoke the provisions of its internal law as justification for its failure to perform a treaty. This rule is without prejudice to article 46. ...


ARTICLE-30: Application of successive treaties relating to the same subject-matter     [go to this ARTICLE]
... 1. Subject to Article 103 of the Charter of the United Nations, the rights and obligations of States parties to successive treaties relating to the same subject-matter shall be determined in accordance with the following paragraphs. ...
... 3. When all the parties to the earlier treaty are parties also to the later treaty but the earlier treaty is not terminated or suspended in operation under article 59, the earlier treaty applies only to the extent that its provisions are compatible with those of the latter treaty. ...
... 5. Paragraph 4 is without prejudice to article 41, or to any question of the termination or suspension of the operation of a treaty under article 60 or to any question of responsibility which may arise for a State from the conclusion or application of a treaty the provisions of which are incompatible with its obligations towards another State under another treaty. ...
... 5. Paragraph 4 is without prejudice to article 41, or to any question of the termination or suspension of the operation of a treaty under article 60 or to any question of responsibility which may arise for a State from the conclusion or application of a treaty the provisions of which are incompatible with its obligations towards another State under another treaty. ...


ARTICLE-32: Supplementary means of interpretation     [go to this ARTICLE]
... Recourse may be had to supplementary means of interpretation, including the preparatory work of the treaty and the circumstances of its conclusion, in order to confirm the meaning resulting from the application of article 31, or to determine the meaning when the interpretation according to article 31: ...
... Recourse may be had to supplementary means of interpretation, including the preparatory work of the treaty and the circumstances of its conclusion, in order to confirm the meaning resulting from the application of article 31, or to determine the meaning when the interpretation according to article 31: ...


ARTICLE-33: Interpretation of treaties authenticated in two or more languages     [go to this ARTICLE]
... 4. Except where a particular text prevails in accordance with paragraph 1, when a comparison of the authentic texts discloses a difference of meaning which the application of articles 31 and 32 does not remove, the meaning which best reconciles the texts, having regard to the object and purpose of the treaty, shall be adopted. ...


ARTICLE-37: Revocation or modification of obligations or rights of third States     [go to this ARTICLE]
... 1. When an obligation has arisen for a third State in conformity with article 35, the obligation may be revoked or modified only with the consent of the parties to the treaty and of the third State, unless it is established that they had otherwise agreed. ...
... 2. When a right has arisen for a third State in conformity with article 36, the right may not be revoked or modified by the parties if it is established that the right was intended not to be revocable or subject to modification without the consent of the third State. ...


ARTICLE-38: Rules in a treaty becoming binding on third States through international custom     [go to this ARTICLE]
... Nothing in articles 34 to 37 precludes a rule set forth in a treaty from becoming binding upon a third State as a customary rule of international law, recognized as such. ...


ARTICLE-40: Amendment of multilateral treaties     [go to this ARTICLE]
... 4. The amending agreement does not bind any State already a party to the treaty which does not become a party to the amending agreement; article 30, paragraph 4(b), applies in relation to such State. ...


ARTICLE-44: Separability of treaty provisions     [go to this ARTICLE]
... 1. A right of a party, provided for in a treaty or arising under article 56, to denounce, withdraw from or suspend the operation of the treaty may be exercised only with respect to the whole treaty unless the treaty otherwise provides or the parties otherwise agree. ...
... 2. A ground for invalidating, terminating, withdrawing from or suspending the operation of a treaty recognized in the present Convention may be invoked only with respect to the whole treaty except as provided in the following paragraphs or in article 60. ...
... 4. In cases falling under articles 49 and 50 the State entitled to invoke the fraud or corruption may do so with respect either to the whole treaty or, subject to paragraph 3, to the particular clauses alone. ...
... 5. In cases falling under articles 51, 52 and 53, no separation of the provisions of the treaty is permitted. ...


ARTICLE-45: Loss of a right to invoke a ground for invalidating, terminating, withdrawing from or suspending the operation of a treaty     [go to this ARTICLE]
... A State may no longer invoke a ground for invalidating, terminating, withdrawing from or suspending the operation of a treaty under articles 46 to 50 or articles 60 and 62 if, after becoming aware of the facts: ...
... A State may no longer invoke a ground for invalidating, terminating, withdrawing from or suspending the operation of a treaty under articles 46 to 50 or articles 60 and 62 if, after becoming aware of the facts: ...


... 3. An error relating only to the wording of the text of a treaty does not affect its validity; article 79 then applies. ...


ARTICLE-60: Termination or suspension of the operation of a treaty as a consequence of its breach     [go to this ARTICLE]
... 3. A material breach of a treaty, for the purposes of this article, consists in: ...


ARTICLE-65: Procedure to be followed with respect to invalidity, termination, withdrawal from or suspension of the operation of a treaty     [go to this ARTICLE]
... 2. If, after the expiry of a period which, except in cases of special urgency, shall not be less than three months after the receipt of the notification, no party has raised any objection, the party making the notification may carry out in the manner provided in article 67 the measure which it has proposed. ...
... 3. If, however, objection has been raised by any other party, the parties shall seek a solution through the means indicated in article 33 of the Charter of the United Nations. ...
... 5. Without prejudice to article 45, the fact that a State has not previously made the notification prescribed in paragraph 1 shall not prevent it from making such notification in answer to another party claiming performance of the treaty or alleging its violation. ...


ARTICLE-66: Procedures for judicial settlement, arbitration and conciliation     [go to this ARTICLE]
... If, under paragraph 3 of article 65, no solution has been reached within a period of 12 months following the date on which the objection was raised, the following procedures shall be followed: ...
... (a) any one of the parties to a dispute concerning the application or the interpretation of articles 53 or 64 may, by a written application, submit it to the International Court of Justice for a decision unless the parties by common consent agree to submit the dispute to arbitration; ...
... (b) any one of the parties to a dispute concerning the application or the interpretation of any of the other articles in Part V of the present Convention may set in motion the procedure specified in the Annex to the Convention by submitting a request to that effect to the Secretary-General of the United Nations. ...


ARTICLE-67: Instruments for declaring invalid, terminating, withdrawing from or suspending the operation of a treaty     [go to this ARTICLE]
... 1. The notification provided for under article 65 paragraph 1 must be made in writing. ...
... 2. Any act declaring invalid, terminating, withdrawing from or suspending the operation of a treaty pursuant to the provisions of the treaty or of paragraphs 2 or 3 of article 65 shall be carried out through an instrument communicated to the other parties. If the instrument is not signed by the Head of State, Head of Government or Minister for Foreign Affairs, the representative of the State communicating it may be called upon to produce full powers. ...


ARTICLE-68: Revocation of notifications and instruments provided for in articles 65 and 67     [go to this ARTICLE]
... Revocation of notifications and instruments provided for in articles 65 and 67 ...
... A notification or instrument provided for in articles 65 or 67 may be revoked at any time before it takes effect. ...


ARTICLE-69: Consequences of the invalidity of a treaty     [go to this ARTICLE]
... 3. In cases falling under articles 49, 50, 51 or 52, paragraph 2 does not apply with respect to the party to which the fraud, the act of corruption or the coercion is imputable. ...


ARTICLE-71: Consequences of the invalidity of a treaty which conflict with a peremptory norm of general international law     [go to this ARTICLE]
... 1. In the case of a treaty which is void under article 53 the parties shall: ...
... 2. In the case of a treaty which becomes void and terminates under article 64, the termination of the treaty: ...


ARTICLE-78: Notifications and communications     [go to this ARTICLE]
... (c) if transmitted to a depositary, be considered as received by the State for which it was intended only when the latter State has been informed by the depositary in accordance with article 77, paragraph 1 (e). ...


ARTICLE-83: Accession     [go to this ARTICLE]
... The present Convention shall remain open for accession by any State belonging to any of the categories mentioned in article 81. The instruments of accession shall be deposited with the Secretary-General of the United Nations. ...