New South Wales:
Application forms for prohibited weapon permits are only available by phoning the Firearms Registry on 1300-362-562 (within NSW) or 02 6670-8590 (interstate residents) or emailing permits@police.nsw.gov.au. Once completed, the form and any supporting documentation must be returned to the Firearms Registry.
Victoria:
Application for Chief Commissioner Approval or Governor in Council Exemption to Possess Prohibited Weapon(s)
(Weapons Permit Application VIC.pdf).
Prohibited Weapons Legislation – Victoria plus list
(Prohibited weapons law & list VIC.pdf)