Can't find what is an "authorised certifier" No, found it.
Proof of life certificates must be certified by an authorised certifier as specified in the Social Security (Administration) (Authorised Certifier) Determination 2019.
The following classes of person are specified as authorised certifiers.
Persons recognised under Australian law:
a person who
is admitted to the legal profession, and
holds a certificate to practise as a legal practitioner
a Registrar or Deputy Registrar
a judge, magistrate or justice, or
a person with same status as a judge, magistrate or justice
a justice of the peace
a notary public
a police officer
an Australian Consular Officer, or Australian Diplomatic Officer
a person who is
in a place outside of Australia, and
authorised to perform consular acts at that place
a person who is a medical practitioner.
Persons recognised in social security recipient's place of residence:
a person who, under the law of or applying at that place, is currently authorised or entitled to practise in that place as:
a legal practitioner (however described), or
a notary public (however described), or
a medical practitioner (however described), or
a police officer (however described)
a judge, magistrate or justice
a registrar or deputy registrar