(1) If it is necessary, in the interests of the safety of air navigation, for the holder of a medical certificate to demonstrate:
(a) that he or she continues to meet the relevant medical standard; or
(b) that holding the certificate does not adversely affect the safety of air navigation;
CASA may direct the holder to do any 1 or more of the following:
(c) submit to an examination carried out by a medical practitioner, specialist psychiatrist, clinical psychologist, audiologist, optometrist, orthoptist, orthotist, occupational therapist, specialist prosthetist or a practitioner of another kind specified in the direction;
(d) submit to an examination or test by a person (not necessarily a medical practitioner) expert in the safe performance of the particular activity to which the medical certificate relates;
(e) authorise the disclosure to CASA of any information or document about the holder, held by a person, organisation, body or authority referred to in subregulation (4), that may help CASA to decide whether:
(i) the holder continues to meet that medical standard; or
(ii) the holder's holding the certificate may adversely affect the safety of air navigation.
(2) For paragraph (1)(c), CASA may nominate a particular practitioner, of a kind mentioned or referred to in that paragraph, who is to carry out the examination.
(3) For paragraph (1)(d), CASA may nominate a particular person who is expert in the performance of the activity concerned to carry out the examination.
(4) For paragraph (1)(e), the persons, organisations, bodies and authorities are as follows:
(a) a medical practitioner, specialist psychiatrist, clinical psychologist, audiologist, optometrist, orthoptist, orthotist, occupational therapist, specialist prosthetist or similar practitioner who has examined or treated the holder;
(b) any other person or organisation (including a hospital) that has made a physical, psychological or psychiatric examination of the holder;
(c) any other person or organisation (including a hospital) that has treated the holder for a medically significant condition;
(d) an employer (including a former employer) of the holder;
(e) any other person, organisation, body or authority (including a police force or police service and, subject to Part VIIC of the Crimes Act 1914 , a court) that holds information or a document relevant to deciding whether the person's holding the certificate may adversely affect the safety of air navigation.