10.
The Committee may, when necessary, establish subcommittees, subsidiary working parties or study groups subject to the necessary funds being available in the relevant chapter of the approved budget of the Organization, and may include in the membership of such subcommittees, subsidiary working parties or study groups Member Nations that are not members of the Committee and Associate Members . The Council may admit to membership of subcommittees, subsidiary working parties and study groups established by the Committee nations which, while not Member Nations or Associate Members of the Organization, are members of the United Nations . Former Member Nations of the Organization that have withdrawn leaving arrears of contributions shall not be admitted to membership until such time as they have paid up all such arrears, or the Conference has approved an arrangement for the settlement thereof, or unless the Council in special circumstances decides otherwise with respect to such admission.