4.—(1) Each appointing authority shall not later than the new constitution date and not later than 1st June in every third year thereafter, appoint one or more persons in accordance with article 3 of this Order.
(2) Each trustee so appointed shall (unless he shall previously die or resign) hold office from 1st August next following his appointment for a term of three years and upon ceasing to hold office shall be eligible for reappointment.
(3) Each trustee appointed under paragraph (3) or (4) of article 3 shall (unless he shall previously die or resign) hold office for such period as may be fixed by the Trustees in making his appointment.