Are Automatic Knives Legal in Delaware?
The Short Answer
Yes — and this is a recent change. As of July 30, 2025, automatic knives are legal in Delaware. Governor Matt Meyer signed SB 108 into law, removing the state's longstanding ban on switchblade knives. Delaware became the 22nd state to repeal its automatic knife restrictions.
Before this law took effect, switchblades were illegal to possess or sell in Delaware. If you're reading older guides online, many still list Delaware as a prohibited state. They're out of date.
What Delaware Law Actually Says
The Statute (Title 11, § 222)
Delaware's knife law centers on the definition of "deadly weapon" in Title 11, § 222 of the Delaware Code:
"'Deadly weapon' includes a 'firearm', as defined in paragraph (12) of this section, a bomb, a knife of any sort (other than an ordinary pocketknife carried in a closed position), switchblade knife, billy, blackjack, bludgeon, metal knuckles, slingshot, razor, bicycle chain or ice pick or any 'dangerous instrument', as defined in paragraph (4) of this section, which is used, or attempted to be used, to cause death or serious physical injury. For the purpose of this definition, an ordinary pocketknife shall be a folding knife having a blade not more than 3.75 inches in length."
Important: SB 108 (2025) amended this statute by: 1. Removing "switchblade knife" from the definition of deadly weapon 2. Increasing the ordinary pocketknife blade length from 3 inches to 3.75 inches
What That Means in Plain English
After SB 108, here's how Delaware knife law works:
- Automatic knives (switchblades, OTFs) are no longer classified as "deadly weapons" by default. They're treated the same as any other knife.
- Ordinary pocketknives — folding knives with blades 3.75 inches or less, carried in a closed position — are not considered deadly weapons and can be carried freely.
- Any other knife (blade over 3.75 inches, or a fixed-blade knife) is still considered a "deadly weapon" and requires a concealed deadly weapon license to carry concealed.
The key shift: an automatic knife with a blade of 3.75 inches or less is now an "ordinary pocketknife" under Delaware law, provided you carry it in a closed position. It's no different from a manual folder in the eyes of the statute.
The Repealed Statute (Former § 1446)
The old § 1446 specifically prohibited switchblade knives:
"A person is guilty of unlawfully dealing with a switchblade knife when the person sells, offers for sale or has in possession a knife, the blade of which is released by a spring mechanism or by gravity."
SB 108 repealed this provision entirely. Selling, buying, and possessing switchblades and automatic knives is now legal in Delaware.
OTF Knives in Delaware
OTF knives are legal in Delaware as of July 30, 2025. They fall under the same rules as any other knife:
- Blade 3.75 inches or less, carried closed: Treated as an ordinary pocketknife. No restrictions on carry.
- Blade over 3.75 inches: Classified as a "deadly weapon." Can be carried openly without a license, but concealed carry requires a license.
For most standard OTF knives — like a Microtech Ultratech (3.4-inch blade) — you're well within the pocketknife definition and can carry without issue.
Switchblades vs. Automatic Knives: What Delaware Considers Them
Under the old law, Delaware defined a switchblade as "a knife, the blade of which is released by a spring mechanism or by gravity." That definition covered side-opening automatics, OTF knives, and gravity knives equally.
Under the new law (post-SB 108), that specific prohibition no longer exists. All of these knife types are treated like any other knife — classified by blade length, not by opening mechanism.
Assisted openers were never covered by Delaware's switchblade ban and remain fully legal. Since the ban itself has been repealed, the distinction between automatic and assisted is now academic in Delaware.
Carrying an Automatic Knife in Delaware
Open Carry
Delaware does not restrict the open carry of knives, including automatic knives. You can carry a knife openly — on your belt, in a sheath, clipped visibly — without a license.
Concealed Carry
Concealed carry is where Delaware law still matters:
- Ordinary pocketknife (blade ≤ 3.75", folding, carried closed): Can be carried concealed freely. This now includes automatic knives meeting these specifications.
- Any other knife (blade > 3.75", fixed blade, etc.): Classified as a "deadly weapon." Concealed carry requires a license to carry concealed deadly weapons under § 1441.
Delaware concealment is determined by the "ordinary sight" standard. The Delaware Supreme Court in Robertson v. State, 704 A.2d 267 (1997), adopted the majority rule:
"A concealed weapon [is] hidden from the ordinary sight of another person... [meaning] the casual and ordinary observation of another in the normal associations of life."
Whether a pocket clip constitutes "concealed" or "open" is a question for the court. Exercise caution.
Delaware Concealed Deadly Weapon License
If you want to carry a larger automatic knife concealed (blade over 3.75 inches), you'll need a Delaware concealed deadly weapon license under § 1441. Key details:
- Eligibility: Must be of "full age" (21+) and "good moral character"
- Application: Filed with the Prothonotary in the county of residence
- Requirements: Five references from "respectable citizens" in the county, publication in a newspaper, and approval by a Superior Court judge
- Fee: Approximately $65 for the application filing
- Duration: 3 years
- Reciprocity: Delaware has reciprocity with some states. Neighboring Pennsylvania, Maryland, and New Jersey are not among them.
This license covers "deadly weapons" generally — not just firearms. It applies to knives.
Where You Can't Carry (Restricted Locations)
Safe School and Recreation Zones are the primary restricted area under § 1457. The definition is broad:
- Any building or property owned/operated by a public or private school (K through university, including vocational-technical schools)
- Within 1,000 feet of any such school property
- Any school-operated vehicle
- Any building used as a recreation center, athletic field, or sports stadium owned/operated by a government entity or private organization
The 1,000-foot zone around schools is notably broad for a state the size of Delaware. In urban areas, this zone can encompass significant portions of a city.
Licensed concealed carry holders and open carriers are generally not prohibited from carrying in these zones, provided they don't otherwise violate deadly weapon statutes. However, exercise extreme caution near schools — enforcement can be aggressive.
Blade Length Restrictions
- 3.75 inches: The threshold for "ordinary pocketknife" status. Below this, a folding knife (including automatics) carried closed is not a deadly weapon.
- No maximum ownership limit: You can own any knife of any blade length.
Delaware measures blade length including the un-sharpened portion. Per State v. Harmon, 800 A.2d 1289 (2002):
"The 'blade' of a knife should not depend upon how much of the knife is sharpened, but should encompass the entire length of the knife, excluding only the handle."
This is consistent with the AKTI standard.
What About Assisted Openers?
Fully legal. Assisted openers were never banned under Delaware's old switchblade prohibition, and with that prohibition now repealed, there's no restriction whatsoever on assisted-opening knives. Carry freely, subject to the same blade length rules as any other knife.
Special Restrictions
Undetectable Knives
Delaware § 1446A prohibits the commercial manufacture, import for commercial sale, or offers for commercial sale of "undetectable knives" — knives that cannot be detected by metal detectors. This is a narrow prohibition aimed at novelty knives made entirely of non-metallic materials.
Knuckle-Combination Knives
§ 1452 prohibits possessing or dealing in a "knuckles-combination knife" — a knife integrated with brass knuckles. This remains illegal.
Preemption and Local Ordinances
Delaware has no statewide preemption of knife laws. Municipalities may impose additional restrictions beyond state law.
Age Restrictions
Delaware does not specify a minimum age for purchasing knives. The concealed deadly weapon license requires the applicant to be of "full age" — 21 years old. Persons under 21 may still openly carry knives, including automatics, subject to other restrictions.
Recent Law Changes
- July 30, 2025: Governor Matt Meyer signed SB 108, repealing the switchblade ban (former § 1446), removing "switchblade knife" from the deadly weapon definition, and increasing the ordinary pocketknife blade length from 3 inches to 3.75 inches. Effective immediately upon signing.
- June 26, 2025: SB 108 unanimously passed the Delaware House after previously passing the Senate.
- 2024: SB 323 was introduced in the prior legislative session as an earlier attempt to repeal the switchblade ban but did not pass before session ended.
This is a brand-new change. Delaware went from one of the most restrictive states for automatic knives to one of the more permissive ones in a single legislative session.
Buying Automatic Knives in Delaware
Delaware residents can now legally purchase automatic knives from in-state retailers or online dealers. The Federal Switchblade Act restricts interstate commercial shipment, but enforcement is minimal for individual consumer purchases.
Note for online retailers: If your site still lists Delaware as a restricted state, update your shipping policies. As of July 30, 2025, automatic knives ship legally to Delaware addresses.
Frequently Asked Questions
Can I carry an OTF knife in Delaware?
Yes. As of July 30, 2025, OTF knives are legal in Delaware. If the blade is 3.75 inches or less and carried in a closed position, it's treated as an ordinary pocketknife — no restrictions. Over 3.75 inches, you'll need a concealed carry license or carry it openly.
Are switchblades illegal in Delaware?
Not anymore. SB 108, signed July 30, 2025, repealed Delaware's switchblade ban. Automatic knives are legal to own, buy, sell, and carry.
Is there a blade length limit for automatic knives in Delaware?
No limit on ownership. For carry: blades 3.75 inches and under are unrestricted. Over 3.75 inches, you'll need a concealed deadly weapon license for concealed carry, or carry openly.
Legal Disclaimer
This article is for informational purposes only and does not constitute legal advice. Knife laws change — sometimes faster than websites update. Federal, state, and local laws may all apply to your situation, and local ordinances can be more restrictive than state law.
Before purchasing, carrying, or traveling with any automatic knife, OTF knife, or switchblade, verify current laws with official state and local sources. We are not attorneys, and we are not responsible for actions taken based on this information.
When in doubt, consult a licensed attorney in your jurisdiction.