1980 United Nations — Treaty Series • Nations Unies — Recueil des Traités 345 (6) At any time by consent of all the parties after consultation with the other con tracting States. Article 55. REDUCTION OF THE PARTIES TO A MULTILATERAL TREATY BELOW THE, NUMBER NECESSARY FOR ITS ENTRY INTO FORCE 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 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: (à) It is established that the parties intended to admit the possibility of denuncia tion or withdrawal; or (6) A right of denunciation or withdrawal may be implied by the nature of the treaty. 2. A party shall give not less than twelve months' notice of its intention to de nounce or withdraw from a treaty under paragraph 1. Article 57. SUSPENSION OF THE OPERATION OF A TREATY UNDER ITS PROVISIONS OR BY CONSENT OF THE PARTIES The operation of a treaty in regard to all the parties or to a particular party may be suspended: (a) In conformity with the provisions of the treaty; or (b) At any time by consent of all the parties after consultation with the other con tracting States. Article 58. SUSPENSION OF THE OPERATION OF A MULTILATERAL TREATY BY AGREEMENT BETWEEN CERTAIN OF THE PARTIES ONLY 1. Two or more parties to a multilateral treaty may conclude an agreement to suspend the operation of provisions of the treaty, temporarily and as between themselves alone, if: (a) The possibility of such a suspension is provided for by the treaty; or (b) The suspension in question is not prohibited by the treaty and: (i) Does not affect the enjoyment by the other parties of their rights under the treaty or the performance of their obligations; (ii) Is not incompatible with the object and purpose of the treaty. 2. Unless in a case falling under paragraph \(a) the treaty otherwise provides, the parties in question shall notify the other parties of their intention to conclude the agreement and of those provisions of the treaty the operation of which they intend to suspend. Article 59. TERMINATION OR SUSPENSION OF THE OPERATION OF A TREATY IMPLIED BY CONCLUSION OF A LATER TREATY 1. A treaty shall be considered as terminated if all the parties to it conclude a later treaty relating to the same subject-matter and: (a) It appears from the later treaty or is otherwise established that the parties in tended that the matter should be governed by that treaty; or Vol. 1155,1-18232