A large number of jurisdictions have enacted breed-specific legislation (BSL) in response to a number of well-publicized incidents involving pit bull-type dogs, and some government organizations such as the United States Army[40] and Marine Corps have taken administrative action as well. These actions range from outright bans on the possession of pit bull-type dogs to restrictions and conditions on pit bull ownership, and often establish a legal presumption that a pit bull-type dog is prima facie a legally "dangerous" or "vicious" dog. In response, some state-level governments in the United States have prohibited or restricted the ability of municipal governments within those states to enact breed-specific legislation, though these prohibitions on breed-specific legislation do not affect military installations located within these states.
It is now generally settled in case law that jurisdictions in the United States and Canada have the right to enact breed-specific legislation; however, the appropriateness and effectiveness of breed-specific legislation in preventing dog bite fatalities is disputed.One point of view is that pit bulls are a public safety issue that merits actions such as banning ownership, mandatory spay/neuter for all pit bulls, mandatory microchip implants and liability insurance, or prohibiting people convicted of a felony from owning pit bulls.Another point of view is that comprehensive "dog bite" legislation, coupled with better consumer education and legally mandating responsible pet keeping practices, is a better solution to the problem of dangerous dogs than breed-specific legislation.