Knife Concealed Carry Laws by State
Blade length limits for concealed carry, whether a permit is required, and whether switchblades / automatic knives are allowed.
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| Blade Length Limit | Permit Required | Switchblade Allowed |
|---|---|---|
| No limit | No | Yes (2018) |
| No limit | No | Yes |
| No limit | No | Yes |
| No limit | No | Yes |
| Folder OK | No | Limited |
| 3.5 in | No | Yes |
| 4 in (auto) | Limited | No (auto banned) |
| 3 in | No | Yes |
| No limit (CCW) | Yes (CCW) | Yes (2024) |
| 12 in (no CCW) | Yes (>12 in) | Yes |
| Banned (auto) | No | No |
| No limit | No | Yes |
| 3 in (Chi) | No | Yes (2017) |
| No limit | No | Yes |
| No limit | Limited | Yes |
| No limit | No | Yes |
| No limit | No | Yes |
| No limit | No | Yes |
| No limit | No | Yes |
| 3.5 in (auto banned) | No | Limited |
| Banned (auto/dirk) | No | No |
| No limit | No | Yes (2017) |
| No limit | No | Yes (2023) |
| No limit | No | Yes |
| No limit | No | Yes (2012) |
| No limit | No | Yes |
| 3.5 in | No | Yes |
| No limit | No | Yes (2015) |
| No limit | No | Yes |
| 5 in (gravity banned) | Limited | No |
| No limit | No | Yes (2017) |
| 4 in (NYC) | No | Yes (2019) |
| No limit (some) | No | Yes (2013) |
| 5 in (auto) | Yes (auto) | Yes (2015) |
| No limit (2021) | No | Yes (2021) |
| No limit | No | Yes (2015) |
| No limit (concealed reg) | No | Yes |
| Banned (auto) | No | No |
| 3 in | No | Limited |
| No limit | No | Yes |
| No limit | No | Yes |
| No limit (2014) | No | Yes (2014) |
| 5.5 in (locations) | No | Yes (2013) |
| No limit | No | Yes |
| 3 in (auto banned) | No | No |
| No limit (concealed) | Limited (CCW) | Yes (2022) |
| Banned (auto/dirk) | No | No |
| No limit | No | Yes (2017) |
| No limit | No | Yes (2016) |
| No limit | No | Yes |
| Banned (auto) | Yes (CCL) | No |
Many states have preemption laws barring local knife restrictions (cities like NYC, Chicago, and DC are notable exceptions). The federal Switchblade Knife Act (15 USC §1241) restricts interstate commerce in switchblades but does not apply to intrastate sale or possession. Federal property and TSA-controlled areas have separate restrictions.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.