CASR 61 I think has the relevant gen.
61.205 When training must not be conducted in aircraft
(1) For paragraphs 61.195 (2) (d) and 61.200 (d), the training must not be conducted in an aircraft with a maximum certificated passenger seating capacity of more than 9 if:
(a) there is an approved flight simulator for the training available in Australia; or
(b) for a rating that applies only to an aircraft with a maximum certificated passenger seating capacity of more than 19 or a maximum certificated take-off weight of more than 8 618 kg—there is an approved flight simulator for the training available outside Australia.
(2) In this regulation:
available, for training, means able to be used for the training.