(1) The principal employee may, on behalf of the Authority:
(a) appoint an eligible person to be an inspector; or
(b) appoint a class of eligible persons to be inspectors.
(2) The appointment of an inspector ceases if he or she ceases to be an eligible person.
(3) For the purposes of this section, the following are eligible persons:
(a) employees of the Authority;
(b) officers and employees of the Commonwealth or of authorities of the Commonwealth;
(c) officers and employees of a State or internal Territory whom a Minister of the Crown of the State, or Minister of the Territory, has agreed may be appointed as inspectors;
(d) officers and employees of a local government body whom the body has agreed may be appointed as inspectors.