How We Research Knife Laws: Sources, Method, What "Verified" Means, and What We Will Not Claim

The Short Version

Knife law in the United States is fifty separate bodies of law, most of them written decades ago around knives that no longer exist, amended piecemeal and interpreted by courts that disagree. Nearly everything published about it online is a paraphrase of a paraphrase, and much of it is years out of date. A page that says Delaware bans switchblades was true until July 30, 2025 and is wrong now. We sell knives in all of those states, we get asked every week whether a particular knife is legal in a particular place, and the only responsible answer is the statute. So that is what the state pages are: the statute, read carefully, quoted where it matters, and dated. This page explains how.

Where the Law Comes From

Each state page is built from three kinds of primary source. The current code, read on the state legislature's own site (the Maine Revisor, the North Dakota Century Code, the South Dakota Codified Laws, the Texas Penal Code and so on), which is the only version that counts. Commercial reprints lag, and summaries lag further. The session law or bill for any change in the last decade, so that we can say when a rule took effect and not just that it did: Delaware's Senate Bill 108, Vermont's S.109, Nebraska's LB 77, Colorado's SB17-008. And the court opinions that decide what the words mean, because "concealed," "dangerous weapon," "pocket knife" and "dirk" have been litigated in most states and the statute alone does not tell you the answer: Oregon's State v. Delgado, Nebraska's State v. Nguyen, Michigan's People v. Lynn, Massachusetts's Canjura.

The secondary source we use is the American Knife and Tool Institute's state-by-state summaries, which are written by lawyers, cover every state, and are the best general reference that exists. We read AKTI's page for every state before we read the code, and we cite it on every page. We do not take a rule from it. Where AKTI and the current code disagree, which happens because AKTI's pages are revised every few years and legislatures move faster, the page says so and follows the code. North Dakota's dangerous weapon line is six inches in the code and five in AKTI's summary, and the page says six and explains why.

How We Read a Statute

Every state page is written in the same order, because knife statutes have the same shape even when the words differ.

1. Definitions first. What the statute calls a knife, a dangerous weapon, a switchblade, a pocketknife, a dirk. Most of the law is in the definitions, and most of the surprises: West Virginia's 3.5-inch pocket knife exclusion, Arkansas's 3-inch definition of a knife, Florida's 4-inch common pocketknife.
2. The banned list. What may not be owned, bought or sold at all, which in 2026 is a short list in most states and an empty one in many.
3. The carry offense. What may not be carried, and whether the rule turns on concealment, length, age, intent or place. This is where open and concealed carry are defined, and where a visible pocket clip may or may not matter.
4. The exceptions and defenses. Hunting and fishing, home and vehicle, permit and license holders, the one-armed exemption in federal law, the "ordinary pocket knife" carve-outs. A rule without its exceptions is wrong.
5. Places. Schools, courthouses, the capitol, bars, airports, federal buildings, which usually sit in different chapters from the carry statute and are the rules people actually break.
6. Preemption and cities. Whether the state bars local knife ordinances, and if not, what the large cities have done. Where we have not read a city code ourselves and are reporting it from AKTI, the page says exactly that.
7. Penalties. The offense class and its ceiling, taken from the sentencing statute rather than from memory.
8. Minors. Whether the state sets an age, restricts the adult who sells to a minor, or says nothing.

Then the page is written against that outline, with the statute quoted wherever the exact words decide the answer, and with each quotation linked to the section it came from. The quick-answer board at the top of each page is the outline compressed into a dozen lines, and the "What the Internet Gets Wrong" section is where we record the claims we found in circulation and could not support.

What "Verified" Means

Each state page carries a line under the title: the statutes it was checked against and the date. "Verified against the North Dakota Century Code, Title 62.1, Chapters 01, 02 and 04, October 12, 2026" means that on that day we opened those chapters on the legislature's site, read the sections the page cites, and confirmed that the quotations match and that nothing in the chapter changes the answer. It does not mean a lawyer reviewed the page, and it does not mean the law has not changed since. It means that on that date the page was right about what the code said. A page whose verified date is more than a year old is a page to read with that in mind, and we re-verify the ones that matter most, the ban states and the recent repeals, more often than that.

What We Will Not Claim

• Legal advice. The pages describe the law. They do not apply it to you. A specific situation, a pending charge, a question about a knife you already own in a state with a gray area, needs a lawyer in that state, and the pages say so.
• Predictions. Where a bill is pending or a case is in court, New Jersey's and Minnesota's bans among them, we say that it is pending and what it would change, not what will happen.
• City codes we have not read. Several pages report an ordinance from AKTI's summary rather than from the municipal code, because the code was not available to us. Each of those says so, and the hub flags them.
• Rules we could not find. When a state has no statute on a question, the page says "no state rule" rather than inventing one or borrowing a neighbor's. The absence of a law is a fact, and it is often the fact you need.
• Our own policies dressed as law. Whether we ship a knife to a state is a decision we make under that state's law, and it is not stated on a law page as if it were the law.
• Anything about a knife we did not check against the product page. Where a page says a TEKTO knife is under or over a state's line, the blade length comes from the current product listing.

How a Change Gets In

Knife law has moved in one direction for fifteen years, and it moves every session. We watch the sources that move first: AKTI's legislative updates, the state legislature sites for the bills we know are pending, and the court dockets for the cases the pages name. When a law changes, the state page is rewritten from the new text, the verified date changes, the hub row changes, and the "What the Internet Gets Wrong" section records the old rule so that readers who learned it elsewhere can see why it no longer applies. If you find a statute we have missed, a section that has been amended, or a city ordinance we have reported secondhand and can send us the code, tell us through the contact page and we will check it and fix the page. The pages are better for every correction, and the people who carry knives in a state generally know its law better than anyone writing about it from outside.

Who Writes This, and Why

TEKTO Knives designs knives in Saco, Maine, and makes automatic, folding and fixed-blade knives for customers in every state. The law pages exist because our customers ask, because the answers were not written down anywhere we could point to, and because a knife company that publishes the statute, quotes it and dates it is a better source than one that repeats what it heard. The pages are written and maintained by TEKTO. They are not sponsored, they do not take a position on what the law should be, and they say when a knife we make is not legal somewhere as plainly as when it is. The 50-state guide is the starting point, the history of switchblades explains how the bans came to be, and every state has its own page.