|depositary notification (C.N.)
||A depositary notification (sometimes referred to as a C.N. - an abbreviation for circular notification) is a formal notice that the Secretary-General sends to all Member States, non-member States, the specialized agencies of the United Nations, and the relevant secretariats, organizations and United Nations offices, as depositary of a particular treaty. The notification provides information on that treaty, including actions undertaken. Such notifications are typically distributed by e-mail on the day that they are processed. Notifications with bulky attachments are transmitted in paper form.
|entry into force
||definitive entry into force
Entry into force of a treaty is the moment in time when a treaty becomes legally binding on the parties to the treaty. The provisions of the treaty determine the moment of its entry into force. This may be a date specified in the treaty or a date on which a specified number of ratifications, approvals, acceptances or accessions have been deposited with the depositary. The date when a treaty deposited with the Secretary-General enters into force is determined in accordance with the treaty provisions.
entry into force for a State
A treaty that has already entered into force may enter into force in a manner specified in it for a State or international organization that expresses its consent to be bound by it after its entry into force. See article 24 of the Vienna Convention 1969.
provisional entry into force
Provisional entry into force may be allowed by the terms of a treaty, for example, in commodity agreements. Provisional entry into force of a treaty may also occur when a number of parties to a treaty that has not yet entered into force decide to apply the treaty as if it had entered into force. Once a treaty has entered into force provisionally, it creates obligations for the parties that agreed to bring it into force in that manner. See article 25(1) of the Vienna Convention 1969.
|exchange of letters or notes
||An exchange of letters or notes may embody a bilateral treaty commitment. The basic characteristic of this procedure is that the signatures of both parties appear not on one letter or note but on two separate letters or notes. The agreement therefore lies in the exchange of these letters or notes, each of the parties retaining one letter or note signed by the representative of the other party. In practice, the second letter or note (usually the letter or note in response) will reproduce the text of the first. In a bilateral treaty, the parties may also exchange letters or notes to indicate that they have completed all domestic procedures necessary to implement the treaty. See article 13 of the Vienna Convention 1969.
|filing and recording
||Filing and recording is the procedure by which the Secretariat records certain treaties that are not subject to registration under Article 102 of the Charter of the United Nations.
||A Final Act is a document summarising the proceedings of a diplomatic conference. It is normally the formal act by which the negotiating parties bring the conference to a conclusion. It is usually part of the documentation arising from the conference, including the treaty, the resolutions and interpretative declarations made by participating States. There is no obligation to sign the Final Act, but signature may permit participation in subsequent mechanisms arising from the conference, such as preparatory committees. Signing the Final Act does not normally create legal obligations or bind the signatory State to sign or ratify the treaty attached to it.