||Amendment, in the context of treaty law, means the formal alteration of the provisions of a treaty by its parties. Such alterations must be effected with the same formalities that attended the original formation of the treaty. Multilateral treaties typically provide specifically for their amendment. In the absence of such provisions, the adoption and entry into force of amendments require the consent of all the parties. See articles 39 and 40 of the Vienna Convention 1969.
||Authentication is the procedure whereby the text of a treaty is established as authentic and definitive. Once a treaty has been authenticated, its provisions cannot be modified except by formal amendment. If procedures for authentication have not been specifically agreed, the treaty will usually be authenticated by signature, or initialling, by the representatives of those States. It is this authenticated text that the depositary uses to establish the original text. See article 10 of the Vienna Convention 1969.
A treaty typically specifies its authentic languages - the languages in which the meaning of its provisions is to be determined.
authentic or authenticated text
The authentic or authenticated text of a treaty is the version of the treaty that has been authenticated by the parties.
|certified true copy
||certified true copy for depositary purposes
A certified true copy for depositary purposes means an accurate duplication of an original treaty, prepared in all authentic languages, and certified as such by the depositary of the treaty. The Secretary-General of the United Nations circulates certified true copies of each treaty deposited with the Secretary-General to all States and entities that may become parties to the treaty. For reasons of economy, the Secretary-General, as depositary, normally provides only two certified true copies to each prospective participant in the treaty. States are expected to make any additional copies required to fulfil their domestic needs. See article 77(1)(b) of the Vienna Convention 1969.
certified true copy for registration purposes
A certified true copy for registration purposes means an accurate duplication of a treaty submitted to the Secretariat of the United Nations for registration. The registering party must certify that the text submitted is a true and complete copy of the treaty and that it includes all reservations made by the parties. The date and place of adoption, the date and the method whereby the treaty has come into force, and the authentic languages must be included. See article 5 of the Regulations.