Working languages Working languages Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below: Sch. Art. 12 para. 1 2 substituted by United Nations (International Tribunals) (Former Yugoslavia and Rwanda) 2012 art. 2 Sch. 1 Sch. Art. 14 para. 3 4 substituted by United Nations (International Tribunals) (Former Yugoslavia and Rwanda) 2012 art. 2 Sch. 1 The working languages of the International Tribunal shall be English and French. Working languages