Section 259--
insert--
'(3) The person is taken to be appointed on a full-time basis unless the appointment is stated, in the instrument of appointment, to be on a part-time basis.
'(4) A person appointed on a full-time basis may, by written agreement between the Minister and the person, perform the functions of the office of a commissioner on a part-time basis.
'(5) An appointment or agreement for a commissioner to perform the functions of the office of a commissioner on a part-time basis must state the percentage of the full-time basis the commissioner is to perform.
'(6) A person appointed on a part-time basis may, by written agreement between the Minister and the person, perform the functions of the office of a commissioner on a full-time basis.
'(7) A person performing the functions of the office of a commissioner on a part-time basis may hold another office, perform other duties or engage in employment if--
(a) the Minister is satisfied that holding the other office, performing the other duties or engaging in the employment is compatible with, and is not a conflict of interest issue for, the office of a commissioner; and
(b) the Minister has given written approval for the person to hold the other office, perform the other duties or engage in the employment.'.