The Canadian federal government does not regulate pit bull-type dogs, but one provincial government and some municipal governments in Canada have enacted breed-specific legislation banning or restricting pit bull-type dogs.The following table discusses a sampling of the restrictions in force.
Restricted breed dogs are also required to be sterilised unless there are extenuating circumstances relating to the animal's physical condition or medical treatment.
Owners of these breeds are required to display of warning signs where these dogs are kept, meet stringent fencing requirements, notify the local government of changes in the dogs status (moved, died, etc..), and ensure their dogs wear dangerous dog collars.
Pit bulls are "grandfathered" if they were owned by an Ontario resident on August 29, 2005, or born in Ontario within 90 days after August 29, 2005.
These dogs are subject to strict regulation and control, including the following: A document purporting to be signed by a member of the College of Veterinarians of Ontario stating that a dog is a pit bull within the meaning of this Act is receivable in evidence in a prosecution for an offence under this Act as proof, in the absence of evidence to the contrary, that the dog is a pit bull for the purposes of this Act, without proof of the signature and without proof that the signatory is a member of the College. Ontario (Attorney General), 2007 Can LII 9231 (ON S. Catherine Cochrane sued the Province of Ontario to prevent it from enforcing the Dog Owner's Liability Act (DOLA) ban on pit bull-type dogs, arguing that the law was unconstitutionally broad because the ban was grossly disproportionate to the risk pit bulls pose to public safety, and that the law was unconstitutionally vague because failed to provide an intelligible definition of pit bulls.
A dog of a breed prohibited from importation into Australia under the Australian Customs Act of 1901 is considered "restricted".
Breeds currently prohibited under Commonwealth legislation are the dogo Argentino; fila Brasileiro; Japanese tosa; American pit bull terrier (or pit bull terrier); and Perro de Presa Canario (or Presa Canario).These dogs, or strains and crosses thereof, must be kept on a strong, short lead (less than 2 metres / 6'7") by a person over 16 years of age who is capable of controlling them. A recent study conducted in Ireland found that dog bite injuries significantly increased since the introduction of such legislation, although data from before the introduction of the ban was not included.The study reported that dog bite hospitalisations may rise as a result of targeting dog breeds due to reinforcing incorrect stereotypes of the dangerousness of certain breeds and assuming the safety of others simply due to their breed may result in people incorrectly interacting with dogs from both categories. standards for the above breeds are on file in the office of the director of public health.""Current pit bull owners [as of September 15, 2008] who keep their dog registered can keep their pet but not to replace it with another pit bull when it dies.A person who owns a "restricted" dog must: The dogo Argentino; fila Brasileiro; Japanese tosa; American pit bull terrier (or pit bull terrier); and Perro de Presa Canario (or Presa Canario) are considered "prescribed breeds".Owners of prescribed breeds: "Restricted breed" dogs are defined as those dogs prohibited from being imported by the Commonwealth Customs (Prohibited Imports) Regulations 1956, including the Dogo Argentino, the Japanese Tosa, the Fila Brasileiro, the Perro de Presa Canario (or Presa Canario) and the American Pit Bull Terrier (or Pit Bull Terrier).Of these, the Pit Bull Terrier and the Perro de Presa Canario are the only breeds currently known to exist in Australia.