NSW Brain Bank donor page https://nswbrainbank.org.au/donors
However, NSW Brain Bank programs do have eligibility requirements which include, and are not limited to, residing in NSW. Also, they do not accept at death or near death donations. They encourage anyone interested in brain donation to enrol as a donor as early as possible.
VICTORIA Brain Bank: https://melbournebraincentre.edu.au/content/victorian-brain-bank-network-vbbn
MS Research Australia Brain Bank: https://msbrainbank.org.au/donate-tissue/
Australian Brain Bank Network – In 2019 the ABBN ceased operating. There are now only the distinct state brain bank entities. See above for state based brain banks.