See bans and restrictions by state at https://www.dogsbite.org/legislating-dangerous-dogs-state-by-state.php More than 900 cities in the United States currently have some form of breed-specific legislation.

See US military regulations at https://www.dogsbite.org/legislating-dangerous-dogs-military-bases.php In 2009, the U.S. Army and U.S. Marine Corps banned dangerous dog breeds from privatized housing domestically and abroad. In 2012, the U.S. Air Force enacted a similar uniform policy.