Why your carry permit works in some states and fails in others

Your driver's license is good in all fifty states. So is your marriage certificate. Nobody checks your Social Security card at the Ohio border. But your concealed-carry permit, the document you got by taking the class, passing the background check and paying the fee, can turn into a very expensive piece of plastic about two hours down the interstate. In one state you're a licensed citizen. In the next you're a criminal defendant. Same you, same gun, same law-abiding history. The only thing that changed is the sign saying "Welcome to Somewhere Else."

If that strikes you as strange, you are in good company. It's one of the most common surprises for new gun owners, and it deserves a straight explanation: why it works this way, how the patchwork operates, what the arguments are for a national rule, and why plenty of conservatives are nervous about one.

Start with who issues the permit

A concealed-carry permit is a state document. It is issued under a state statute, by a state agency or a county sheriff acting under state law, to people who meet that state's standards. It authorizes carrying within that state, under that state's rules. When you cross the line, you enter a different sovereign with its own statutes, and that sovereign decides whether to honor your paper.

Why does your driver's license travel when your carry permit doesn't? Not because the Constitution requires it. Driver's licenses travel because the states chose to honor each other's, by statute and by custom, with interstate agreements such as the Driver License Compact handling the sharing of violations. It's a courtesy that every state extends because every state benefits. The states do it voluntarily, because the alternative would be chaos.

Carry permits never got the same universal courtesy. Some states honor many other states' permits. Some honor a few. Some honor none. That choice belongs to each state. Nothing in federal law requires otherwise, with one exception we'll get to.

How the patchwork works

The legal vocabulary matters, because the label on a state's rule tells you how it works.

Reciprocity. State A honors State B's permits only if State B honors State A's. These are agreements, formal or informal, between states, usually negotiated by attorneys general or enacted through statutes that authorize the attorney general to enter them. When one state changes its rules, the agreement can end.

Recognition. State A passes a statute that says it will honor out-of-state permits, without requiring anything in return. Often the statute is conditioned: it recognizes permits only from states whose standards are at least as strict, or only for people over a certain age, or only if the person is not a resident of State A.

Permitless carry. Some states don't require a permit for their own residents at all. That doesn't automatically mean they recognize yours, and it doesn't automatically mean you may carry there without one. Many permitless states still issue permits for the sake of reciprocity, so that their residents can carry in other states. We lay out how the different systems work in four ways a state can regulate carrying a gun, side by side.

Resident versus nonresident permits. A handful of states, Utah and Florida among them, issue permits to nonresidents. People who live in a state with tough rules sometimes get a nonresident permit from a state that is widely recognized, because that permit may be honored in more places than their home permit would be.

In every case the details change, and they change often. A reciprocity list that was accurate last year may be wrong this year. The state attorney general's office or state police website for the state you are traveling to is the authority; that's where the list lives. Check it before every trip, and check the issuing state's own page too. Don't rely on a chart from a forum or a friend.

Why the standards differ

Why won't the states just agree? Because they don't agree on what a permit should require.

Training requirements run from none at all to a classroom course plus a live-fire qualification. Background checks differ in what they search and what disqualifies. States disagree about the minimum age, with some at twenty-one and some lower for certain categories. States differ on how they treat certain misdemeanors, on mental-health records, on whether you must be fingerprinted, on how long the permit lasts and on how you renew it.

Now put yourself in the position of a legislator in a state with a demanding training requirement. You've told your own residents that carrying a loaded handgun in public requires, say, a course and a range test. Another state down the road lets anyone over twenty-one carry with no course at all. Should you automatically honor the second state's papers? Many legislators would say no. The reasoning isn't hostility to gun owners. It's a belief that a license should mean what the licensing state says it means. Others reply that a law-abiding citizen's right doesn't change at the state line, and that the difference in training requirements is a poor reason to turn a lawful traveler into a criminal.

Both of those are respectable positions, and you can see why the states have not converged on their own.

The one nationwide carry law

There is one federal law that lets certain people carry across state lines regardless of local permit rules: the Law Enforcement Officers Safety Act of 2004, signed in July of that year. It added sections 926B and 926C to Title 18 of the U.S. Code.

Under LEOSA, a qualified active law enforcement officer, and a qualified retired officer who meets the statute's conditions, may carry a concealed firearm in any state, with some limits. Active officers must have the legal authority to make arrests and be authorized to carry, and must not be subject to certain disciplinary actions. Retired officers must have served a minimum period, in general ten years in the aggregate, must have left in good standing, must meet a firearms qualification standard each year, and must carry the required identification from the former agency. The statute does not override state laws that let private property owners bar guns from their property, and it doesn't override state or local rules banning guns on government property such as parks. It doesn't cover machine guns, silencers or destructive devices.

LEOSA is a useful precedent for the debate that follows, because it proves that Congress can write a national carry rule, and that the sky does not fall when it does. It is also a reminder that Congress has so far written it for one class of people.

I'd also mention a second federal rule that helps travelers, though it isn't a carry law. The Firearm Owners Protection Act of 1986 includes a "safe passage" provision, codified at 18 U.S.C. § 926A, that protects a person transporting a firearm from one place where he may lawfully have it to another, so long as the firearm is unloaded and neither the firearm nor ammunition is readily accessible, for example locked in a trunk. It protects passing through, not stopping and carrying. If you are driving across a state with strict laws, read before you drive across state lines with a gun, run this checklist first.

The case for a national rule

The argument for national reciprocity goes like this.

1. Rights shouldn't stop at borders. Americans travel across state lines constantly for work, family and recreation. A citizen who is lawfully licensed at home should not become a criminal by crossing a river.
2. The Constitution gives Congress tools. The Full Faith and Credit Clause, Article IV, Section 1, requires each state to give full faith and credit to the "public Acts, Records, and judicial Proceedings" of every other state, and it authorizes Congress to prescribe by general law the manner in which they are proved "and the Effect thereof." Supporters say Congress can use that second sentence to give out-of-state permits effect. The Commerce Clause, which covers interstate travel, is another source of power, and so is Congress's authority to enforce the Fourteenth Amendment, which now applies the Second Amendment to the states after McDonald v. City of Chicago.
3. The driver's license is the model. If a Montana license is good in Manhattan, so should be a Montana carry permit.
4. Self-defense doesn't have a home-state requirement. A woman who is stalked on a business trip is as much in danger in a motel in another state as she is in her own driveway.

The skeptic's answer

I find the first and fourth points persuasive as a matter of principle. But the legal arguments are not as strong as supporters make them sound, and a conservative has good reasons to hesitate.

Start with the Full Faith and Credit Clause. It has historically been read to cover judgments and public records, not licenses. A final court judgment from Texas must be honored in Ohio. A marriage license is honored in most places as a matter of law and comity. A Texas law license, though, does not let you try a case in an Ohio courtroom; you need Ohio's permission. A medical license from one state doesn't make you a doctor in another. A permit is a license, and the states have treated licenses as local permissions. A court could be persuaded otherwise, but the clause is not a slam dunk.

The Commerce Clause argument runs into the line of cases, United States v. Lopez (1995) and United States v. Morrison (2000), in which the Court said the commerce power has limits and doesn't extend to everything that has some connection to the national economy. Carrying a gun in your belt is not obviously "commerce."

And here is the federalism objection, which is the one that gives conservatives pause. If Congress can order every state to honor every other state's permit, then Congress has claimed power over what each state may do within its own borders about carrying firearms. Today that power may be used to override New York's restrictions in favor of a Texas permit. Tomorrow, a different Congress may use it to set a national standard for training, for background checks, for what a permit must contain, and so on. The same principle that lets Washington raise the floor can lower it. Once Washington writes national carry rules, the argument goes, gun owners will have given Washington the tools, and they should not assume the people holding them will always be friendly. This is the Tenth Amendment worry that Three Towns, Three Rule Books and the Case for Letting States Differ explains in plain terms.

The other side's reply is strong. A reciprocity bill does not commandeer state officials, which the Court has barred in cases like Printz v. United States (1997). It regulates the conduct of individuals, as LEOSA does. It doesn't tell a state to do anything; it tells a state it must treat a visitor's permit as valid. Compared with a federal licensing regime, it's a modest step, and it protects a right the Constitution already recognizes.

I'd put it this way. The strongest case for national reciprocity is not the Full Faith and Credit Clause. It is the Second Amendment itself, applied to the states, which means a state's refusal to let a law-abiding visitor carry may one day itself face a constitutional challenge. How the courts handle that after Bruen is an open question, covered in Bruen and Rahimi explained, the history test every gun law now faces. Federal bills on reciprocity have been introduced in Congress in session after session, and the debate hasn't changed much: one side says it's about rights, the other says it's about states. They're both partly right.

A traveler's checklist, in hypothetical form

Picture a hypothetical driver named Dana, who holds a permit from State A and plans a road trip through States B, C, D and E.

• State B recognizes State A's permit by statute. Dana may carry under State B's rules, which may differ from State A's about where a gun is prohibited.
• State C honors only permits from residents. Dana's permit means nothing there. She must either leave the gun at home or follow the safe-passage rules in 18 U.S.C. § 926A.
• State D is a permitless carry state that also honors permits from states with equivalent standards. Dana can likely carry, but she should check the details for nonresidents.
• State E doesn't honor any out-of-state permits. Dana's permit is no help there either.

The lesson is that the permit gives Dana a different right in every state, and she has to look each one up. Make the call in advance. Don't make it on the shoulder of the road.

The bottom line

• Your permit is a state document. Nothing in federal law makes another state honor it, except for qualified law enforcement officers under LEOSA.
• The patchwork is real, and it changes. Check the destination state's attorney general or state police website before every trip, not a forum post from three years ago.
• There are good arguments on both sides of a national rule. Supporters stress that rights don't stop at borders. Skeptics stress that Washington's power to raise a floor is also power to lower one.
• Conservatives should argue this on principle, not convenience. The same federalism we want from Washington on other subjects should make us ask what we are asking Washington to do here.
• Know the safe-passage rule. If your permit won't carry you through a state, the Firearm Owners Protection Act may still protect you if your firearm is unloaded and out of reach. Learn the details before you need them.