81. Acceptance of and objections to reservations.

81.     Acceptance of and objections to reservations.

A reservation1 which is expressly authorised by a treaty2 does not require any subsequent acceptance3 by the other contracting states unless the treaty so provides4. When it appears from the limited number of negotiating states5 and the object and purpose of the treaty that the application of the treaty in its entirety between all the parties is an essential condition of the consent of each one to be bound by the treaty, a reservation requires acceptance by all the parties6. When a treaty is a constituent instrument of an international