ARTICLE 30 VACATIONS . Vacations of the Tribunal shail be determined by the President. . The President shall publish the days of vacation in each calendar year, as informed by the schedule of hearings. . During such vacations the President shall exercise his or her functions at the seat of the Tribunal either by himself or through any other Judge designated by the President to exercise such functions. . The President may, if he or she determines that a matter is urgent, convene the Tribunal during the vacations. . The Tribunal shall, during its sittings, observe the official public holidays of the Member State where it has its seat and those of any Member State where it is holding its sittings. . The President may, in appropriate cases, Judge after consultation with other Judges. grant leave of absence to any ARTICLE 31 WORKING LANGUAGES The working languages of the Tribunal shall be English, Portuguese and such other languages as Council may determine. French and SECTION F REPRESENTATION BEFORE THE TRIBUNAL ARTICLE 32 REPRESENTATION . Parties competent to appear before the Tribunal shall be represented by an adviser, agent or representative of their choice. . As regards such advisers, agents and representatives who appear before it, the Tribunaf shali have fhe powers normally accorded to courts of law, under conditions laid down in the Rules. . All advisers, agents and representatives shall, when they appear before the Tribunal, enjoy the rights, privileges and immunities necessary for the independent exercise of their duties, subject to conditions laid down in the Rules. 15