New York knife law is not built around one statewide blade-length limit. The key questions are the knife’s statutory classification, whether unlawful intent is involved, the carrier’s age, the location, and any local ordinance. New York City adds a separate public-carry rule for knives with blades of four inches or more. [1] [7]
New York removed “gravity knife” from the ordinary possession offense in 2019, but switchblades, pilum ballistic knives, metal-knuckle knives, and cane swords remain specifically listed in Penal Law § 265.01. [2] [3]
Which knife types receive special treatment in New York?
Penal Law § 265.00 defines a switchblade as a knife whose blade opens automatically through pressure on a button, spring, or other device in the handle. It separately defines pilum ballistic knives, metal-knuckle knives, automatic knives, and undetectable knives. Design details matter, so a product name alone is not enough to classify a knife. [1]
Section 265.01(1) prohibits possession of listed items including switchblade knives, pilum ballistic knives, metal-knuckle knives, and cane swords, subject to statutory exemptions. Section 265.01(2) takes a different approach to daggers, dangerous knives, dirks, machetes, razors, stilettos, undetectable knives, and other dangerous or deadly instruments: it requires intent to use the item unlawfully against another. [2]
The 2019 amendment removed gravity knives from § 265.01(1). That repeal does not make every fast-opening folder legal in every circumstance. A knife may still fit another prohibited definition, be carried with unlawful intent, or violate a local rule. [3]
Are ordinary folding knives and fixed blades legal?
New York does not impose a blanket statewide ban on ordinary manual folding knives or conventional fixed blades. It also does not establish a general statewide “under four inches” safe harbor. A manual folder can still become evidence in an unlawful-intent case, and a fixed blade may fall within a named category depending on its design.
Penal Law § 265.15 creates a presumption of unlawful intent when a person possesses a dagger, dirk, stiletto, dangerous knife, or another instrument designed, made, or adapted primarily as a weapon. That presumption makes design, statements, surrounding conduct, and legitimate work or recreational purpose especially important. [4]
How do carry and vehicle rules work?
At the state level, § 265.01 does not create a simple “open carry legal, concealed carry illegal” rule for every knife. Possession of a listed prohibited knife can be an offense without proof that it was concealed. For other dangerous knives, unlawful intent is central. Local codes may regulate the visibility and length of knives more directly.
Vehicle carry also requires care. Section 265.15(3) creates a rebuttable presumption that all occupants possess certain listed weapons found in an automobile, including switchblades, ballistic knives, metal-knuckle knives, daggers, dirks, and stilettos, subject to the statute’s exceptions. A locked or inaccessible container may be prudent, but New York law does not provide one universal knife-transport formula that guarantees legality. [4]
What exceptions apply to switchblades?
Penal Law § 265.20 contains narrow exemptions. One allows possession of a switchblade for use while hunting, trapping, or fishing by a person carrying the required license. The exemption is activity- and license-specific; it is not a general automatic-knife permit. [5]
Manufacture, commercial transport, and transfer of listed weapons are separately regulated by § 265.10. A knife that may be lawfully possessed in a narrow circumstance may still be unlawful to sell or transfer outside an exception. [6]
How is New York City different?
New York City Administrative Code § 10-133 generally prohibits possessing in a public place, street, or park a knife with a blade length of four inches or more. It also generally prohibits carrying a knife in open view in those places, even when the blade is not exposed. The ordinance lists exceptions for specified work, outdoor, transport, performance, and organizational activities. [7]
The four-inch rule is a New York City rule, not a statewide blade limit. The New York City Law Department identifies American Legal Publishing as the contracted public code service, making the linked code page the practical current source for the city ordinance. [8]
What age and school rules matter?
Penal Law § 265.05 makes possession of a “dangerous knife” by a person under sixteen unlawful, subject to the statute’s terms. Separately, selling or otherwise disposing of specified weapons to a person under sixteen is addressed by § 265.10. [9] [6]
Do not rely on the title “criminal possession of a weapon on school grounds” as a blanket knife rule: Penal Law § 265.01-a is written for rifles, shotguns, and firearms. Knives can still trigger the ordinary Article 265 offenses, student discipline rules, school policy, and other laws. Education Law § 3214 expressly contemplates discipline involving daggers, dangerous knives, dirks, razors, stilettos, and listed Article 265 weapons. [10]
Practical takeaway
For lower-risk everyday carry, avoid any knife that may meet a listed prohibited definition, do not carry with unlawful intent, keep the knife out of restricted properties, and check the local code—especially in New York City. A small manual folder is not automatically lawful merely because its blade is under four inches.
Last reviewed: August 24, 2026.
This article provides general information, not legal advice. New York knife law can depend on design, intent, age, vehicle placement, location, local ordinances, and court interpretation. Verify current official sources or consult a qualified New York attorney about a specific situation.
Sources & References
- [1] New York Penal Law § 265.00. Definitions for switchblades and other weapon categories.
- [2] New York Penal Law § 265.01. Criminal possession of a weapon in the fourth degree.
- [3] 2019 New York Senate Bill S4863. Enacted removal of gravity knives from the possession offense.
- [4] New York Penal Law § 265.15. Vehicle-possession and unlawful-intent presumptions.
- [5] New York Penal Law § 265.20. Statutory exemptions, including the licensed hunting, trapping, or fishing switchblade exception.
- [6] New York Penal Law § 265.10. Manufacture, transport, and disposition restrictions.
- [7] New York City Administrative Code § 10-133. Public-place blade-length and open-view rules.
- [8] New York City Law Department: Laws of the City of New York. Official access information for the city code service.
- [9] New York Penal Law § 265.05. Dangerous-knife possession by persons under sixteen.
- [10] New York Education Law § 3214. Student discipline provisions involving knives and other weapons.
