Vienna Convention on the Law of Treaties

Article 6: Capacity of States to conclude treaties

Article 7: Full powers

Article 8: Subsequent confirmation of an act performed without authorization

Article 9: Adoption of the text

Article 10: Authentication of the text

Article 11: Means of expressing consent to be bound by a treaty

Article 12: Consent to be bound by a treaty expressed by signature

Article 13: Consent to be bound by a treaty expressed by an exchange of instruments constituting a treaty

Article 14: Consent to be bound by a treaty expressed by ratification, acceptance or approval

Article 15: Consent to be bound by a treaty expressed by accession

Article 16: Exchange or deposit of instruments of ratification, acceptance, approval or accession

Article 17: Consent to be bound by part of a treaty and choice of differing provisions

Article 18: Obligation not to defeat the object and purpose of a treaty prior to its entry into force

Article 19: Formulation of reservations

Article 20: Acceptance of and objection to reservations

Article 21: Legal effects of reservations and of objections to reservations

Article 22: Withdrawal of reservations and of objections to reservations

Article 23: Procedure regarding reservations

Article 24: Entry into force

Article 25: Provisional application

Article 26: Pacta sunt servanda

Article 27: Internal law and observance of treaties

Article 28: Non-retroactivity of treaties

Article 29: Territorial scope of treaties

Article 30: Application of successive treaties relating to the same subject-matter

Article 31: General rule of interpretation

Article 32: Supplementary means of interpretation

Article 33: Interpretation of treaties authenticated in two or more languages

Article 34: General rule regarding third States

Article 35: Treaties providing for obligations for third States

Article 36: Treaties providing for rights for third States

Article 37: Revocation or modification of obligations or rights of third States

Article 38: Rules in a treaty becoming binding on third States through international custom

Article 42: Validity and continuance in force of treaties

Article 43: Obligations imposed by international law independently of a treaty

Article 44: Separability of treaty provisions

Article 45: Loss of a right to invoke a ground for invalidating, terminating, withdrawing from or suspending the operation of a treaty

Article 46: Provisions of internal law regarding competence to conclude treaties

Article 47: Specific restrictions on authority to express the consent of a State

Article 48: Error

Article 49: Fraud

Article 50: Corruption of a representative of a State

Article 51: Coercion of a representative of a State

Article 52: Coercion of a State by the threat or use of force

Article 53: Treaties conflicting with a peremptory norm of general international law (jus cogens)

Article 54: Termination of or withdrawal from a treaty under its provisions or by consent of the parties

Article 55: Reduction of the parties to a multilateral treaty 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

Article 57: Suspension of the operation of a treaty under its provisions or by consent of the parties

Article 58: Suspension of the operation of a multilateral treaty by agreement between certain of the parties only

Article 59: 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

Article 61: Supervening impossibility of performance

Article 62: Fundamental change of circumstances

Article 63: Severance of diplomatic or consular relations

Article 64: Emergence of a new peremptory norm of general international law (jus cogens)

Article 65: Procedure to be followed with respect to invalidity, termination, withdrawal from or suspension of the operation of a treaty

Article 66: Procedures for judicial settlement, arbitration and conciliation

Article 67: Instruments for declaring invalid, terminating, withdrawing from or suspending the operation of a treaty

Article 68: Revocation of notifications and instruments provided for in articles

Article 69: Consequences of the invalidity of a treaty

Article 70: Consequences of the termination of a treaty

Article 71: Consequences of the invalidity of a treaty which conflict with a peremptory norm of general international law

Article 72: Consequences of the suspension of the operation of a treaty