To what extent do rules of general international law apply between international organizations and their members? The article tackles this question by distinguishing between two categories of relations: those that take place on the international plane and those that are, rather, situated on the institutional plane constituted by the organization’s internal law. I argue that general international law applies by default to relations belonging to the first category, only being displaced when the internal law of an organization contains applicable lex specialis, but that it cannot claim a similar role at the level of internal institutional relations. The question there becomes one concerning the dialogue between relatively autonomous international legal orders, so that it is the internal law of each organization that defines the terms on which rules of international law are allowed in. At the same time, a normative argument can be made for a ‘monistic presumption’ for the application of general international law in cases where the rules of the organization are silent. By delving into such questions of applicable law and identifying the relevant analytical frameworks, the article aims to help international lawyers dealing with complex disputes opposing international organizations and their members to structure the legal analysis.

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国际组织及其成员之间关系中的一般国际法

一般国际法规则在国际组织及其成员之间适用的程度如何？文章通过区分两类关系来解决这个问题：发生在国际层面的关系和发生在组织内部法所构成的制度层面的关系。我认为一般国际法默认适用于属于第一类的关系，只有在组织的内部法包含适用的情况下才会被取代特别法，但它不能在内部制度关系的层面上要求类似的作用。问题变成了一个关于相对自治的国际法律秩序之间对话的问题，因此每个组织的内部法都定义了允许国际法规则进入的条件。同时，可以提出规范性论证在组织规则未作规定的情况下适用一般国际法的“一元论推定”。通过深入研究此类适用法律问题并确定相关分析框架，本文旨在帮助国际律师在处理反对国际组织及其成员的复杂争议时构建法律分析。