Are butterfly knives legal in washington?

Apparently, in Washington, the balisong ("butterfly") is classified as a "spring blade knife," and under state law one cannot manufacture, sell, dispose of, or possess such knives. read more

A butterfly knife opens with a centrifugal movement, so it is _clearly_ with the ambit of unlawful carry or possession by Revised Code of Washington § 9.41.250. The number of movements required to open the knife is irrelevant to the statute. read more

In some states, including Tennessee and Washington, the laws regarding these knives are a gray area, as the legality of them depends on whether or not they are classified as switchblades. In Wyoming, North Dakota and Oklahoma, these knives are legal as long as they are not concealed. read more