Using other Australian registration to work in Victoria
Veterinary practitioners with current registration in another Australian State or Territory sometimes come to Victoria to work temporarily. If your principal place of residence is in another State or Territory, the Victorian Board recognises your interstate right to practise as giving you the right to practise in Victoria. You would not have to apply for registration in Victoria as long as you continued to live in the State or Territory and your registration there remained active. The law covering these circumstances is section 3A of the Victorian Veterinary Practice Act 1997. The general term for the right to practise in Victoria with an interstate right to practise is "national recognition of veterinary registration".
However, if you relocate so your principal place of residence is in Victoria, you would have to apply for registration in Victoria before your registration in the other State or Territory expired. This is required under section 1A of the Victorian Veterinary Practice Act 1997.
Note to international vets including from New Zealand: Recognition of interstate veterinary registration does not extend to people registered in other countries. If you are working as a veterinary practitioner in another country, you cannot come here and immediately start working without first registering in Victoria. Vets from New Zealand, UK and the US will likely have degrees that are recognised for registration in Victoria, but they must apply for registration in Victoria if their principal place of residence will be in Victoria and they want to practise here.