If you own a dog that fits the approved standard for restricted breed dogs you will need to comply with Victorian legislation relating to the control of Restricted Breed Dogs.
The approved standard covers dogs that are of the type that are considered to be the American Pit Bull Terrier (or Pit Bull Terrier), Perro de Presa Canario (or Presa Canario), Dogo Argentino, Japanese Tosa, or Fila Brasileiro.
From 30 September 2011 the Domestic Animals Act 1994 requires that the registration and keeping of restricted breed dogs will be limited to those dogs:
That were in Victoria prior to 1 September 2010 and
Were registered (as any breed) prior to 30 September 2011.