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ARTICLE-30: Application of successive treaties relating to the same subject-matter     [go to this ARTICLE]
... 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-42: Validity and continuance in force of treaties     [go to this ARTICLE]
... 2. The termination of a treaty, its denunciation or the withdrawal of a party, may take place only as a result of the application of the provisions of the treaty or of the present Convention. The same rule applies to suspension of the operation of a treaty. ...


ARTICLE-43: Obligations imposed by international law independently of a treaty     [go to this ARTICLE]
... The invalidity, termination or denunciation of a treaty, the withdrawal of a party from it, or the suspension of its operation, as a result of the application of the present Convention or of the provisions of the treaty, shall not in any way impair the duty of any State to fulfil any obligation embodied in the treaty to which it would be subject under international law independently of the treaty. ...


ARTICLE-44: Separability of treaty provisions     [go to this ARTICLE]
... 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. ...


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]
... Loss of a right to invoke a ground for invalidating, terminating, withdrawing from or suspending the operation of a treaty ...
... 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: ...


ARTICLE-54: Termination of or withdrawal from a treaty under its provisions or by consent of the parties     [go to this ARTICLE]
... Termination of or withdrawal from a treaty under its provisions or by consent of the parties ...
... The termination of a treaty or the withdrawal of a party may take place: ...


ARTICLE-55: Reduction of the parties to a multilateral treaty below the number necessary for its entry into force     [go to this ARTICLE]
... Unless the treaty otherwise provides, a multilateral treaty does not terminate by reason only of the fact that the number of the parties falls below the number necessary for its entry into force. ...


ARTICLE-56: Denunciation of or withdrawal from a treaty containing no provision regarding termination, denunciation or withdrawal     [go to this ARTICLE]
... Denunciation of or withdrawal from a treaty containing no provision regarding termination, denunciation or withdrawal ...
... 1. A treaty which contains no provision regarding its termination and which does not provide for denunciation or withdrawal is not subject to denunciation or withdrawal unless: ...


ARTICLE-59: Termination or suspension of the operation of a treaty implied by conclusion of a later treaty     [go to this ARTICLE]
... Termination or suspension of the operation of a treaty implied by conclusion of a later treaty ...


ARTICLE-60: Termination or suspension of the operation of a treaty as a consequence of its breach     [go to this ARTICLE]
... Termination or suspension of the operation of a treaty as a consequence of its breach ...
... 1. A material breach of a bilateral treaty by one of the parties entitles the other to invoke the breach as a ground for terminating the treaty or suspending its operation in whole or in part. ...
... (a) the other parties by unanimous agreement to suspend the operation of the treaty in whole or in part or to terminate it either: ...


ARTICLE-61: Supervening impossibility of performance     [go to this ARTICLE]
... 1. A party may invoke the impossibility of performing a treaty as a ground for terminating or withdrawing from it if the impossibility results from the permanent disappearance or destruction of an object indispensable for the execution of the treaty. If the impossibility is temporary, it may be invoked only as a ground for suspending the operation of the treaty. ...
... 2. Impossibility of performance may not be invoked by a party as a ground for terminating, withdrawing from or suspending the operation of a treaty if the impossibility is the result of a breach by that party either of an obligation under the treaty or of any other international obligation owed to any other party to the treaty. ...


ARTICLE-62: Fundamental change of circumstances     [go to this ARTICLE]
... 1. A fundamental change of circumstances which has occurred with regard to those existing at the time of the conclusion of a treaty, and which was not foreseen by the parties, may not be invoked as a ground for terminating or withdrawing from the treaty unless: ...
... 2. A fundamental change of circumstances may not be invoked as a ground for terminating or withdrawing from a treaty: ...
... 3. If, under the foregoing paragraphs, a party may invoke a fundamental change of circumstances as a ground for terminating or withdrawing from a treaty it may also invoke the change as a ground for suspending the operation of the treaty. ...


ARTICLE-64: Emergence of a new peremptory norm of general international law (jus cogens)     [go to this ARTICLE]
... If a new peremptory norm of general international law emerges, any existing treaty which is in conflict with that norm becomes void and terminates. ...


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]
... Procedure to be followed with respect to invalidity, termination, withdrawal from or suspension of the operation of a treaty ...
... 1. A party which, under the provisions of the present Convention, invokes either a defect in its consent to be bound by a treaty or a ground for impeaching the validity of a treaty, terminating it, withdrawing from it or suspending its operation, must notify the other parties of its claim. The notification shall indicate the measure proposed to be taken with respect to the treaty and the reasons therefor. ...


ARTICLE-67: Instruments for declaring invalid, terminating, withdrawing from or suspending the operation of a treaty     [go to this ARTICLE]
... Instruments for declaring invalid, terminating, withdrawing from or suspending the operation of a treaty ...
... 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-70: Consequences of the termination of a treaty     [go to this ARTICLE]
... Consequences of the termination of a treaty ...
... 1. Unless the treaty otherwise provides or the parties otherwise agree, the termination of a treaty under its provisions or in accordance with the present Convention: ...
... (b) does not affect any right, obligation or legal situation of the parties created through the execution of the treaty prior to its termination. ...


ARTICLE-71: Consequences of the invalidity of a treaty which conflict with a peremptory norm of general international law     [go to this ARTICLE]
... 2. In the case of a treaty which becomes void and terminates under article 64, the termination of the treaty: ...
... 2. In the case of a treaty which becomes void and terminates under article 64, the termination of the treaty: ...
... (b) does not affect any right, obligation or legal situation of the parties created through the execution of the treaty prior to its termination; provided that those rights, obligations or situations may thereafter be maintained only to the extent that their maintenance is not in itself in conflict with the new peremptory norm of general international law. ...