Artikel 27

1. If, at the date of the succession of States, a multilateral treaty was in force in respect of the territory to which the succession of States relates and the newly independent State gives notice of its intention that the treaty should be applied provisionally in respect of its territory, that treaty shall apply provisionally between the newly independent State and any party which expressly so agrees or by reason of its conduct is to be considered as having so agreed.
2. Nevertheless, in the case of a treaty which falls within the category mentioned in article 17, paragraph 3, the consent of all the parties to such provisional application is required.
3. If, at the date of the succession of States, a multilateral treaty not yet in force was being applied provisionally in respect of the territory to which the succession of States relates and the newly independent State gives notice of its intention that the treaty should continue to be applied provisionally in respect of its territory, that treaty shall apply provisionally between the newly independent State and any contracting State which expressly so agrees or by reason of its conduct is to be considered as having so agreed.
4. Nevertheless, in the case of a treaty which falls within the category mentioned in article 17, paragraph 3, the consent of all the contracting States to such continued provisional application is required.
5. Paragraphs 1 to 4 do not apply if it appears from the treaty or is otherwise established that the application of the treaty in respect of the newly independent State would be incompatible with the object and purpose of the treaty or would radically change the conditions for its operation.