New Jersey Knife Laws
New Jersey sets no blade length and does not treat concealment as the issue, and it is still one of the hardest states in the country to carry in. Switchblades, gravity knives, daggers, dirks and stilettos are prohibited without an explainable lawful purpose, and that phrase is doing a great deal of work.
This is not legal advice, and we are not lawyers. It is a plain reading of published summaries and the statutes they cite, kept current on a fixed schedule. Local ordinances are frequently stricter than state law and are not all captured here. Check the statute, and check your city, before you carry.
New Jersey knife law at a glance
| Concealed carry blade limit | Concealment is not the issue under state law. |
|---|---|
| Automatic and switchblade knives | Switchblades and gravity knives are prohibited without an explainable lawful purpose. |
| Knife types banned outright | Gravity knives, switchblades, daggers, dirks, stilettos and ballistic knives are heavily restricted. |
| Statewide preemption | No. |
| The statutes | N.J.S.A. 2C:39-3 — read them |
Source last revised 13 September 2022
Next review 15 November 2026
How fresh this is, and how you can tell
Two dates sit above, and they are not the same thing. Checked by us is the last time a person went back to the sources and confirmed this page still matches them. Source last revised is when the American Knife and Tool Institute last updated its own New Jersey page. A 2021 revision date is not automatically wrong — it usually means nothing has changed since — but it does mean nobody had looked recently, and that is exactly the gap this page exists to close.
Crossing the New Jersey state line
Knife law stops at the border and the next state does not have to agree with this one. If you drive, these are the states you are most likely to carry into, and what changes when you do.
| State | Automatic knives | Concealed blade limit |
|---|---|---|
| New York | Legal with conditions | State law applies the same whether the knife is concealed or not. |
| Pennsylvania | Legal | Concealment is not a factor. The offense turns on criminal intent. |
| Delaware | Legal | Only an ordinary pocketknife may be carried concealed, which Delaware defines as a folding knife with a blade of three and three quarter inches or less. Anything else needs a concealed carry license. |
A knife that is lawful in your pocket at home can be unlawful the moment you cross, and nobody stops you at the line to tell you. The map for all fifty states covers the rest.
Common questions about New Jersey knife laws
What size knife is legal to carry in New Jersey?
Concealment is not the issue under state law.
Are switchblades legal in New Jersey?
Switchblades and gravity knives are prohibited without an explainable lawful purpose.
Which knives are banned outright in New Jersey?
Gravity knives, switchblades, daggers, dirks, stilettos and ballistic knives are heavily restricted.
Does New Jersey have knife preemption?
No. New Jersey has no statewide preemption, so a city or county can be stricter than the state code, and several are. Check your local ordinance as well as the statute.
Can I keep a knife in my car in New Jersey?
Where a state has a concealed carry limit, a knife in a glovebox or a door pocket is generally treated as concealed. Read the concealed line above and apply it to the vehicle. If that line says concealment is not the issue in this state, the vehicle is not the issue either — but where you drive to still is, because schools and courthouses are barred everywhere.
Where this comes from
Two independent sources, cross-checked against each other, and the statute text where they disagree. The automatic knife column is the American Knife and Tool Institute’s state automatics table, checked against Knife Rights’ own switchblade legality table and their legislative update log. Everything on a state page is quoted or closely tracked from that state’s AKTI page, and we print the date AKTI last revised it so you can see for yourself how fresh the underlying work is.
Where a source is older than a change we know about, we say so on the page rather than quietly leaving the old answer up. That is the whole reason this is checked every two months.
Elsewhere on Popular EDC
The knife law map for all fifty states, the knife steel comparison chart for choosing the blade itself, and every Popular EDC tool in one place.
Data updated September 2026. New Jersey knife law checked against the published sources on 15 September 2026, and due for review again on 15 November 2026.