Article 123 of the Constitution. (7) This section applies to any officer who on the 24th October, 1964, was on pensionable conditions of service and(a) was designated under the Overseas Service Aid Scheme; or (b) was immediately before the 24th October, 1964, a member of Her Majesty's Overseas Civil Service or Her Majesty's Overseas Judiciary; or (c) whose conditions of service included an entitlement to free overseas passages from Zambia for the purpose of leave of absence upon the completion of a tour of duty; or (d) was not a citizen of Zambia. 16. Notwithstanding anything to the contrary contained in this Act or Compulsory retirement of the Constitution, the President may, with a view to securing the non-citizens appointment of citizens of Zambia to public offices, direct retirement from public office of any person who is not a citizen of Zambia: Provided that a person shall not be retired under the provisions of this section unless notice in writing is given to him specifying the date of retirement which shall not be earlier than six months from the date on which such notice is received by him. SCHEDULE (Section 2) ARRANGEMENT OF ARTICLES THE CONSTITUTION OF ZAMBIA PREAMBLE PART I NATIONAL SOVEREIGNTY AND THE STATE