3. The terms and conditions under which any facilities or services of the United Nations or the World Tourism Organization in connection with the matters referred to in the present article are to be extended to the other shall, where necessary, be the subject of supplementary arrangements concluded for this purpose pursuant to article 20 of the present Agreement.
3. 联合国或世界旅游组织就本条所述事项向另一方提供本方的任何设施或服务时，应酌情根据本协定第20条为此缔结补充安排规定有关条件。