Government Sector Employment (General) Rules 2014
46 Ongoing conditions of employment
(1) A Public Service senior executive must ensure that the executive at all times holds and maintains—(a) the citizenship or other residency requirements for employment as a Public Service employee, and(b) the formal qualifications or clearances (if any) required for his or her role.(2) The employer of a Public Service senior executive may attach a specific condition of employment to a particular role.(3) If the Public Service senior executive assigned to a role to which any such condition is attached is assigned to a different role that does not have the condition of employment attached to it, the condition no longer applies in relation to the executive.