(1) A radiation analyst holds office on the terms and conditions specified in the instrument of appointment.
(2) The Secretary may revoke an appointment at any time.
(3) A radiation analyst ceases to hold office—
(a) if the appointment provides for a term of appointment—at the end of the term; or
(b) as provided for in the terms and conditions specified in the instrument of appointment; or
(c) if the Secretary revokes his or her appointment under sub-section (2).
(4) A radiation analyst may resign by signed notice of resignation given to the Secretary.