Concealed bring of a double-edged knife is restricted. Full Article (switchblade) and gravity knives are restricted. In Indiana it is legal to own and carry a butterfly knife both open or concealed. In Kentucky, the balisong is legal for hidden and open carrying anywhere one is not otherwise forbidden from bring a hidden deadly weapon.
In Maine, it is legal to own sell and carry. In Massachusetts, the balisong is legal for hidden and open bring so long as it does not" [present] an objective risk of threat to a person of affordable and typical sensibility." Constraints likewise apply depending on the area of the person carrying the knife (such as within a public school).
In New Jersey the criminal law, NJSA 2C:39 -1, suggests balisongs are unlawful but the concern of legality or illegality is an open question. In New Mexico, possession of a butterfly knife is prohibited, since the butterfly knife is a "switchblade" within the significance of the statute making possession of switchblades unlawful.
Zuniga, 303 A.D. 2d 773 (2nd Dept. 2003)] Nevertheless, the law restricting gravity knives was found to be unconstitutional and their ownership was legalized in 2019. In North Carolina, residents are allowed to carry most pocketknives many of the time. Statute S.14-269, which restricts the hidden carrying of any "bowie knife, dirk, dagger", or "other deadly weapon of like kind" doesn't use to an "normal penknife brought in a closed position".
In Ohio, it is legal to own a balisong and carry it honestly, and unlawful to carry hidden, as it is considered a deadly weapon. in Oklahoma, the balisong is legal for open bring however is unlawful to carry hidden. In Oregon, it is unlawful to carry a concealed balisong.
Restrictions on these rather focuses on intent rather than simply carrying. In Texas, switchblades are legal as of 1 September 2013. In Utah, Balisongs are legal to own and carry as long as you are not a "Restricted Individual" as described in Utah State Code 76-10-503. In Virginia, the balisong is legal for concealed, and open, bring according to state law.