Brass knuckles are illegal in many countries, including Hong Kong, Austria, Belgium, Bosnia, Canada, Croatia, Cyprus, Finland, Germany, Greece, Hungary, Ireland, Israel, Malaysia, the Netherlands, Norway, Poland, Portugal, Russia, Spain, Turkey, Singapore, Taiwan, and the United Kingdom. In the United States, the legality of brass knuckles varies from state to state. There are 29 states where brass knuckles are legal, 12 of which are legal without a permit and 17 are legal with a permit. The states where brass knuckles are legal without a permit are Arizona, Georgia, Hawaii, Idaho, Indiana, Iowa, Montana, South Carolina, South Dakota, Texas, Utah, and Wyoming. The states where brass knuckles are legal with a permit are Alabama, Connecticut, Delaware, Florida, Kentucky, Louisiana, Maryland, Mississippi, Nebraska, New Mexico, North Carolina, North Dakota, Ohio, Oregon, Virginia, West Virginia, and Wisconsin. It is illegal to carry brass knuckles in 21 states, including Alaska, Arkansas, California, Colorado, Illinois, Kansas, Maine, Massachusetts, Michigan, Minnesota, Missouri, Nevada, New Hampshire, New Jersey, New York, Oklahoma, Pennsylvania, Rhode Island, Tennessee, Vermont, and Washington.