(1) When a person is appointed as chief executive officer of a Regional Corporation in accordance with section 26 with effect from a given point in time, the Regional Corporations are to appoint that person as a director of the Common Services Corporation at that time.(2) If a person ceases to be chief executive officer of a Regional Corporation for any reason with effect from a given point in time, that person is taken to have resigned from his or her role as a director of the Common Services Corporation at that time.(3) If a person who is the chief executive officer of a Regional Corporation ceases to be a director of the Common Services Corporation for any reason with effect from a given point in time, that person is taken to have resigned from his or her role as chief executive officer of the Regional Corporation at that time.(4) The Treasurer may from time to time, by written notice given to the members of the Common Services Corporation, require (a) that the Common Services Corporation is to have up to 2 additional directors; or(b) that the Common Services Corporation is to cease to have any additional directors.(5) As soon as is practicable after receiving written notice from the Treasurer referred to in subsection (4)(a) , the members of the Common Services Corporation are to appoint by ordinary majority, from those persons recommended by the Selection Committee under section 20(4) as suitable for appointment to fill a vacancy in the role of additional director, a person as an additional director of the Common Services Corporation to fill that vacancy.(6) As soon as is practicable after receiving written notice from the Treasurer referred to in subsection (4)(b) , the members of the Common Services Corporation are to remove all persons from the role of additional director of the Common Services Corporation.(7) The members of the Common Services Corporation may, by special majority, remove a person from the role of additional director of that Corporation.