(Penal Code area 17235 & 21510.) In Hawaii, it is illegal to have, produce, offer, move, or carry any balisong/Butterfly-type knife. In Kansas, there were once legal constraints on butterfly knives, nevertheless, as of July 2013, the Kansas Comprehensive Knife Rights Act legalized the carrying of all types of bladed weapons.
In Chicago it is illegal to bring a concealed knife with a blade longer than 2. 5 inches. Concealed carry of a double-edged knife is prohibited. Automatic (switchblade) and gravity knives are restricted. In Indiana it is legal to own and carry a butterfly knife both open or hidden. In Kentucky, the balisong is legal for hidden and open bring anywhere one is not otherwise restricted from carrying a hidden lethal weapon.
In Maine, it is legal to own sell and bring. In Massachusetts, the balisong is legal for hidden and open carrying so long as it does not" [present] an objective danger of threat to a person of affordable and typical sensibility." More In-Depth apply depending upon the area of the person bring the knife (such as within a public school).
In New Jersey the criminal law, NJSA 2C:39 -1, recommends balisongs are unlawful but the concern of legality or illegality is an open concern. In New Mexico, belongings of a butterfly knife is illegal, because the butterfly knife is a "switchblade" within the meaning of the statute making belongings of switchblades illegal.
Zuniga, 303 A.D. 2d 773 (2nd Dept. 2003)] However, the law prohibiting gravity knives was discovered to be unconstitutional and their possession was decriminalized in 2019. In North Carolina, people are allowed to bring most pocketknives the majority of the time. Statute S.14-269, which forbids the concealed carrying of any "bowie knife, dirk, dagger", or "other deadly weapon of like kind" does not apply to an "common penknife brought in a closed position".
In Ohio, it is legal to own a balisong and bring it freely, and unlawful to bring hidden, as it is considered a deadly weapon. in Oklahoma, the balisong is legal for open carry but is prohibited to bring hidden. In Oregon, it is prohibited to bring a concealed balisong.