Concealed carry rules in the United States work on two levels at once. Your state decides whether you need a permit and how you get one, while federal law decides who is allowed to possess a firearm at all, where firearms are off-limits nationwide, and how you can transport one across state lines. As of early 2026, 29 states let adults carry a concealed handgun without any permit, and the rest require a license under varying standards. The gap between what’s legal at home and what’s legal one state over is where most carriers get into trouble.
Does Your State Require a Permit
States fall into three categories. The most permissive is constitutional carry, also called permitless carry, which lets any adult who isn’t otherwise prohibited from owning a firearm carry a concealed handgun without a government-issued license. A majority of states now follow this model. Most still offer an optional permit for residents who want one, mainly for reciprocity when traveling.
The next tier is shall-issue, the most common framework among states that still require a permit. The issuing authority must grant a permit to any applicant who meets a defined set of objective criteria, with no discretion to deny someone who checks every box. Criteria typically include a minimum age, a clean background check, and completion of a firearms safety course.
The third approach, now the least common, is may-issue. The issuing authority can approve or deny a permit even if the applicant meets all stated requirements. These jurisdictions historically required applicants to demonstrate a special reason for needing to carry, beyond general self-defense. In 2022, the Supreme Court’s decision in New York State Rifle & Pistol Association, Inc. v. Bruen struck down that kind of requirement, holding that a state cannot force law-abiding citizens to prove a special need before carrying a firearm in public for self-defense.1Supreme Court of the United States. New York State Rifle and Pistol Association Inc v Bruen Syllabus California, New Jersey, Massachusetts, and other may-issue states rewrote their laws after that ruling to function more like shall-issue systems, though some added new restrictions on where permit holders can carry.
Who Is Barred From Carrying Under Federal Law
Before worrying about permits or locations, the threshold question is whether federal law allows you to possess a firearm at all. Under 18 U.S.C. § 922(g), certain categories of people are completely barred from shipping, transporting, receiving, or possessing any firearm or ammunition.2Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts No state permit overrides this federal prohibition. The categories include:
- Anyone convicted of a crime punishable by more than one year in prison, regardless of the sentence actually served.
- Anyone convicted of a misdemeanor crime of domestic violence or subject to certain domestic protective orders.
- Fugitives from justice.
- Anyone who uses or is addicted to a controlled substance, including marijuana.
- Anyone formally found mentally defective or committed to a mental institution.
- Anyone discharged from the military under dishonorable conditions.
- Former U.S. citizens who have renounced their citizenship.
The ATF publishes guidance on these categories for law enforcement agencies running background checks.3Bureau of Alcohol, Tobacco, Firearms and Explosives. Identify Prohibited Persons
The Marijuana Problem
The controlled substance prohibition catches people off guard more than any other category. Marijuana remains illegal under federal law, and that classification controls for firearms purposes. If you use marijuana, even in a state where it’s fully legal for recreational or medical purposes, you are a federally prohibited person and cannot lawfully possess a firearm or ammunition.2Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts ATF Form 4473, which every buyer completes when purchasing a firearm from a licensed dealer, asks directly whether you are an unlawful user of marijuana or any other controlled substance, and warns that federal law applies regardless of state legalization.4Bureau of Alcohol, Tobacco, Firearms and Explosives. Firearms Transaction Record – ATF Form 4473 Answering that question falsely is a separate federal crime. A medical marijuana card in one pocket and a concealed carry permit in the other puts you on the wrong side of federal law.
Applying for a Permit
Even in constitutional carry states, many residents still apply for a concealed carry permit. A permit provides reciprocity in other states and speeds up the background check when buying a new firearm. The process shares common elements across most jurisdictions.
The minimum age is 21 in most states, though some set it at 18 or 19, particularly for active-duty military. Applicants typically submit fingerprints and authorize a criminal background check, which the issuing agency runs through the FBI’s National Instant Criminal Background Check System. Most states also require completion of a firearms safety course covering safe handling, storage, legal use of force, and a live-fire proficiency test. Courses run from a few hours to a full day.
Application fees generally range from around $40 to over $100 for an initial permit. The required training course adds another $50 to $350, so a first permit often costs several hundred dollars out of pocket. Permits are typically valid for four to five years and carry a renewal fee.
Where You Cannot Carry
Having a permit, or living in a constitutional carry state, does not mean you can carry everywhere. Federal law creates a floor of prohibited locations that applies nationwide, and states stack their own restricted places on top. Walking into a prohibited location with a concealed firearm can turn a law-abiding carrier into a criminal defendant.
Federal Buildings
Under 18 U.S.C. § 930, possessing a firearm in any federal facility is a crime punishable by up to one year in prison. In a federal court facility, the maximum rises to two years. If prosecutors show you intended to use the firearm in a crime, the penalty rises to five years.5Office of the Law Revision Counsel. 18 USC 930 – Possession of Firearms and Dangerous Weapons in Federal Facilities A federal facility means any building or portion of a building owned or leased by the federal government where federal employees regularly work. That includes courthouses, IRS offices, Social Security offices, and VA hospitals.
Post Offices
Postal Service regulations prohibit carrying firearms on any real property under USPS control, including parking lots, not just the building itself.6eCFR. 39 CFR 232.1 – Conduct on Postal Property The safest course is to leave your firearm secured in your vehicle somewhere other than a post office parking lot before going in.
School Zones
The Gun-Free School Zones Act makes it a federal offense to knowingly possess a firearm within 1,000 feet of any public, private, or parochial school.2Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts That radius is enormous in any urban or suburban area and can sweep in streets, businesses, and homes that don’t feel remotely connected to a school. The law exempts people licensed by the state where the school zone is located, provided the state’s licensing process includes a law enforcement verification that the individual qualifies. It also exempts firearms that are unloaded and in a locked container.7Bureau of Alcohol, Tobacco, Firearms and Explosives. Gun Free School Zone Notice Constitutional carry states handle this inconsistently. Some issue an automatic license to all residents for school-zone purposes; others don’t, which can leave permitless carriers technically in violation of federal law.
Airports
Firearms are prohibited beyond TSA security screening checkpoints. Attempting to bring a firearm through a checkpoint triggers an immediate law enforcement response and can result in federal civil penalties of several thousand dollars, separate from any criminal charges the local jurisdiction may pursue.8Transportation Security Administration. National Firearms Document You can transport a firearm in checked luggage if it’s unloaded, packed in a locked hard-sided container, and declared to the airline at check-in.9Transportation Security Administration. Firearms
National Parks
National parks follow a different rule than most federal property. Under 54 U.S.C. § 104906, you may possess a firearm in a unit of the National Park System as long as you aren’t otherwise prohibited from possessing it and the possession complies with the law of the state where the park sits.10U.S. Government Publishing Office. 54 USC 104906 – Protection of Right of Individuals To Bear Arms If the park spans multiple states, different rules may apply depending on where you’re standing. Federal buildings inside parks, including visitor centers, ranger stations, and fee collection offices, are still covered by the 18 U.S.C. § 930 ban on firearms in federal facilities.11National Park Service. Firearms in National Parks Discharging a firearm in a park is also prohibited except where hunting is specifically authorized by federal statute.
State-Designated Locations and Private Property
Each state maintains its own list of off-limits locations on top of the federal floor. Commonly prohibited places include courthouses, government buildings, polling places on election days, bars and restaurants that primarily serve alcohol, hospitals, houses of worship, and university campuses. Roughly half of states restrict carrying while consuming alcohol, even in locations that otherwise allow firearms.
Private property owners can also prohibit firearms on their premises, typically by posting a sign at the entrance. The legal consequence of ignoring that sign varies. In some states, carrying past a properly posted sign is a criminal offense in itself. In others, the sign creates a trespassing issue, and refusing to leave when asked leads to criminal trespass charges rather than a firearm-specific violation.
Vehicles and Interstate Travel
Vehicle carry rules differ sharply from one state to the next. In constitutional carry and many shall-issue states, a permit holder can carry a loaded handgun on their person or within arm’s reach while driving. Other states require the firearm to be unloaded and stored in the trunk or a locked container, especially if the driver doesn’t hold a permit. When you cross a state line, the destination state’s vehicle rules apply, not your home state’s.
Federal Safe Passage
Federal law provides a narrow protection for interstate travel. Under 18 U.S.C. § 926A, part of the Firearms Owners’ Protection Act, you may transport a firearm through any state, even one that would otherwise prohibit you from possessing it, if three conditions are met: you can legally possess the firearm where you start, you can legally possess it where you’re going, and during transport the firearm is unloaded and not readily accessible from the passenger compartment.12Office of the Law Revision Counsel. 18 USC 926A – Interstate Transportation of Firearms If your vehicle doesn’t have a separate trunk, the firearm and ammunition must be in a locked container other than the glove compartment or center console.
This protection is narrower than many people realize. It covers transit, not extended stops. If you break your trip for a hotel stay in a restrictive state and bring the firearm into your room, you may lose the safe-passage defense. New York and New Jersey have a history of aggressively prosecuting travelers who make even brief stops while transporting firearms. Treat § 926A as protection for driving through, not for visiting.
Reciprocity Between States
A concealed carry permit from your home state does not automatically work everywhere. Each state decides which other states’ permits it will honor, and the agreements are inconsistent. Some states recognize permits from nearly every other state; others recognize none at all. Before traveling, check whether your destination state has a reciprocity agreement with your state. The official website of the destination state’s attorney general or department of public safety is the most reliable source.
When you carry in a state that recognizes your permit, you follow that state’s laws, not your home state’s. That means learning its prohibited locations, vehicle rules, and duty-to-inform requirements before you arrive.
What to Do During a Police Stop
About a dozen states require you to immediately tell a law enforcement officer that you’re carrying a firearm during any official encounter, including a traffic stop. This is called a duty to inform, and violating it can result in a fine or misdemeanor charge even if you’re otherwise carrying legally. In the remaining states, you’re only required to answer truthfully if the officer asks whether you have a firearm. Even where there’s no legal duty, many experienced carriers consider proactive disclosure a safety best practice, because it reduces surprise and lets the officer control the interaction calmly.
Keep your hands visible during any police encounter and avoid reaching toward the firearm. If the officer asks to secure the weapon during the stop, cooperate.
When You Can Actually Use the Firearm
Carrying a concealed firearm means accepting responsibility for understanding when you can and can’t use it. The legal framework varies by state, but a few core principles appear almost everywhere.
About half of states have stand-your-ground laws, which allow you to use deadly force in self-defense without any obligation to retreat first, as long as you’re in a place you have a legal right to be and you reasonably believe deadly force is necessary to prevent death or serious injury. The remaining states impose some version of a duty to retreat, meaning you must attempt to withdraw safely before resorting to deadly force. Nearly all duty-to-retreat states make an exception inside your own home under the castle doctrine.
Regardless of which rule your state follows, any use of deadly force gets evaluated against the reasonable-person standard. A jury asks whether a hypothetical rational person in your exact situation would have believed they faced an imminent threat of death or serious bodily harm, and whether the force used was proportional to that threat. “Imminent” does the heavy lifting. A threat that hasn’t materialized or has already passed doesn’t qualify. The law doesn’t let you shoot someone who insulted you, or someone retreating from a confrontation. Self-defense claims fail most often when the shooter’s perception of the threat doesn’t hold up to outside scrutiny. Carrying a firearm doesn’t lower the legal threshold for using it.
Penalties for Getting It Wrong
Consequences for violating concealed carry laws range from fines to years in prison, depending on whether the violation involves a prohibited location, lack of a permit, or a federal offense.
Federal facility penalties are set by statute. Possessing a firearm in a federal building carries up to one year in prison. A federal courthouse carries up to two years. Proven intent to use the weapon in a crime raises the maximum to five years.5Office of the Law Revision Counsel. 18 USC 930 – Possession of Firearms and Dangerous Weapons in Federal Facilities
Carrying without a valid permit in a state that requires one is treated seriously almost everywhere. Many states classify it as a felony, which can mean more than a year of imprisonment, significant fines, and a permanent loss of the right to own firearms, because a felony conviction itself becomes a federal disqualifier under 18 U.S.C. § 922(g).2Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts One unlicensed-carry conviction can end your ability to legally own a gun for life.
Carrying into a state-prohibited location with a valid permit is typically charged as a misdemeanor for a first offense, with penalties escalating for repeat violations or carrying in sensitive areas like schools or courthouses. In most states, any concealed carry conviction also triggers permit revocation. Specific penalties vary enough by state that looking up the exact statute for your jurisdiction is essential rather than relying on general guidance.