Article 57 United Nations Charter

Article 57 of the United Nations Charter is under Chapter IX: International Economic and Social Cooperation

Article 57

1. The various specialized agencies, established by intergovernmental agreement and having wide international responsibilities, as defined in their basic instruments, in economic, social, cultural, educational, health, and related fields, shall be brought into relationship with the United Nations in accordance with the provisions of Article 63.
2. Such agencies thus brought into relationship with the United Nations are hereinafter referred to as specialized agencies.

See also: Article 56 United Nations Charter