Even if the admission of the State in question is not subject to a formal act of the organization, but is simply reflected in accession to the constituent instrument, article 20, paragraph 3, of the Vienna Conventions requires the competent organ to rule on the question.
即使当事国不必经组织正式行动而只要加入组成文书即可被接纳为成员，《维也纳公约》第20条第3款也要求主管机关对此问题作出决定。