The Secretary may, in writing, authorise any of the following persons to exercise powers under a specified provision of these Regulations:
(a) an officer of the Department, of another Department or of an authority of the Commonwealth;
(b) an officer of:
(i) a Department of State of a State; or
(ii) a Department or administrative unit of the Public Service of a Territory; or
(iii) an authority of a State or of a Territory;
being a Department, unit or authority that has functions relating to health matters.