Legal note: This page is a CJRB educational summary, not legal advice. Delaware knife law can change, and local, federal, school, courthouse, airport, workplace, event, public-property, private-property, and transit rules may add restrictions. Use the source links below as a starting point and consult a qualified attorney for legal advice.
Last checked: July 25, 2026 · Primary sources: official state code, Justia, and official local/agency sources listed below
Delaware Knife Law Snapshot
Short version: Delaware defines deadly weapon to include knives other than an ordinary pocketknife carried closed, with ordinary pocketknife defined as a blade not more than 3.75 inches. As of July 30, 2025, the Title 11 switchblade dealing offense is repealed, but concealed deadly-weapon, undetectable-knife, dealer, and school-zone rules still matter.
Ordinary pocketknife means blade not more than 3.75 inches.
Other knives can be deadly weapons for concealed-carry analysis.
The Title 11 switchblade dealing offense was repealed July 30, 2025.
Undetectable knives remain separately restricted.
Can You Carry a Knife in Delaware?
| Situation | Plain-English summary | Status | Source |
|---|---|---|---|
| Ordinary pocketknife carried closed | Delaware excludes an ordinary pocketknife carried in a closed position from the deadly-weapon definition; ordinary pocketknife means blade not more than 3.75 inches. | Generally allowed | 11 Del. C. section 222 |
| Concealed knife that is not an ordinary closed pocketknife | A knife of any sort other than a closed ordinary pocketknife can be a deadly weapon, making concealed carry risky without proper authorization. | Concealed caution | 11 Del. C. sections 222, 1442 |
| Switchblade knife | The Title 11 offense for unlawfully dealing with switchblade knives was repealed effective July 30, 2025, but dealer licensing and local/place rules still require review. | Updated / caution | 11 Del. C. section 1446; 24 Del. C. section 901 |
| Undetectable knife | Commercial manufacture, import for commercial sale, offer for sale, or possession of an undetectable knife is restricted. | Restricted | 11 Del. C. section 1446A |
| Safe School and Recreation Zone | Underlying weapon offenses can trigger Delaware's Safe School and Recreation Zone law. | Avoid | 11 Del. C. section 1457 |
Knife Type Notes
Use this as a practical EDC check. Ownership, open carry, concealed carry, place restrictions, age, and intent can be separate questions.
| Knife type | State summary | Carry risk |
|---|---|---|
| Pocket knives <= 3.75 inches | Lower risk if closed and ordinary. | Low |
| Larger knives | May be deadly weapons under the general definition. | Medium |
| Switchblades | Title 11 dealing offense repealed in 2025; check dealer law and places. | Medium |
| Undetectable knives | Separately restricted. | High |
Concealment, Dealer, and School-Zone Rules
Place-based and local rules are where many EDC mistakes happen. Check the exact school, courthouse, airport, park, transit system, workplace, venue, and private-property rule before carrying.
| Rule area | What to know | Status | Source |
|---|---|---|---|
| Concealed deadly weapon | Carrying a concealed deadly weapon without license is a felony. | Caution | 11 Del. C. section 1442 |
| Deadly weapons dealer law | Delaware dealer licensing law still includes switchblade sale language; verify current licensing law before retail activity. | Caution | 24 Del. C. section 901 |
| Safe School and Recreation Zone | Certain underlying weapons offenses are elevated in safe school/recreation zones. | Caution | 11 Del. C. section 1457 |
Practical EDC Checklist
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01Start with knife type: Confirm whether the knife is ordinary utility carry or a listed/restricted weapon category.
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02Check carry method: Open carry and concealed carry can be treated differently.
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03Check the place: Schools, courthouses, airports, jails, public buildings, parks, and private venues often have stricter rules.
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04Check age and status: Minors, prohibited persons, and restricted-license contexts can change the answer.
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05Avoid weapon-like conduct: Threatening display, unlawful intent, or criminal-use facts can turn a tool into a legal problem.
Relevant Legal Sources
| Source | Why it matters | Status | Citation |
|---|---|---|---|
| 11 Del. C. section 222 | Deadly weapon definition and ordinary pocketknife definition. | Source | 11 Del. C. section 222 |
| 11 Del. C. section 1442 | Carrying a concealed deadly weapon. | Source | 11 Del. C. section 1442 |
| 11 Del. C. section 1446 | Switchblade dealing offense repealed effective July 30, 2025. | Source | 11 Del. C. section 1446 |
| 11 Del. C. section 1446A | Undetectable knives. | Source | 11 Del. C. section 1446A |
| 11 Del. C. section 1457 | Safe School and Recreation Zone. | Source | 11 Del. C. section 1457 |
| 24 Del. C. section 901 | Deadly weapons dealer licensing and switchblade sale language. | Source | 24 Del. C. section 901 |
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