What a Class 3 weapons license is and who issues it

A Class 3 weapons license is a federal permit that allows you to own, possess, or deal in certain heavily regulated firearms — mainly machine guns, short-barreled rifles, short-barreled shotguns, and suppressors. The license is issued by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), a federal agency, not by your state or local government the way a driver's license is.

There are actually two different Class 3 licenses: one for dealers, manufacturers, and importers (called an FFL Type 07 or Type 11), and one for individual collectors (called a SOT, or Special Occupational Tax). Most people who want to own Class 3 weapons as individuals need to go through a licensed dealer and pay a federal tax stamp for each item, rather than getting a personal license. The process is lengthy, involves federal background checks, and requires approval from your local law enforcement.

Key Takeaways

  • Class 3 weapons licenses are issued by the federal ATF, not your state, and regulate machine guns, short-barreled rifles, suppressors, and similar firearms.
  • Individual collectors typically do not get a personal Class 3 license; instead, they register each weapon with the ATF and pay a $200 federal tax stamp per item.
  • You must pass an extensive federal background check, get written approval from your local chief law enforcement officer, and submit fingerprints and photographs.
  • The entire process from process to approval usually takes four to eight months, though timelines vary by region and current ATF workload.
  • You must be at least 21 years old (or 18 for rifles and shotguns in some cases), a U.S. citizen or permanent resident, and have no felony convictions or domestic violence restraining orders.

The difference between a Class 3 license and a tax stamp

If you want to own a Class 3 weapon as an individual — not as a dealer or manufacturer — you do not actually get a "Class 3 license." Instead, you register each specific weapon with the ATF using Form 1 (for making your own) or Form 4 (for buying from a dealer), and you pay a one-time $200 federal tax stamp for that item. That tax stamp is your legal permission to own that one weapon.

A true Class 3 license is only for people running a business: licensed dealers, manufacturers, or importers. If you are a dealer, you file for an FFL (Federal Firearms License) with a Class 3 SOT designation, which costs $500 per year and requires you to maintain a storefront, keep detailed records, and allow ATF inspections. Most individual gun owners never need this route.

Basic requirements before you start

Before you can even begin the process process, you must meet several baseline requirements. You must be at least 21 years old (18 for certain rifles and shotguns, depending on state law). You must be a U.S. citizen or a permanent resident with a valid green card. You cannot have any felony convictions, any conviction for a crime of violence, or any active domestic violence restraining order against you. You also cannot be dishonorably discharged from the military, be an undocumented immigrant, or be subject to a court order that prohibits you from possessing firearms.

Your state and local laws matter too. Some states ban certain Class 3 weapons outright — machine guns, for example, are illegal for civilians in many states. Some cities and counties have their own restrictions. Before you spend time and money on the federal process, contact your state's fish and wildlife or public safety department to confirm that the weapon you want is legal where you live.

Step-by-step: How to register a Class 3 weapon

The process differs slightly depending on whether you are buying from a dealer (Form 4) or making the weapon yourself (Form 1). Most people use Form 4.

Step 1: Find a licensed dealer. Not all gun dealers handle Class 3 weapons. Search the ATF's online FFL directory or call dealers in your area and ask if they are a Class 3 SOT. Once you find one, you can select the specific weapon you want to buy.

Step 2: Get your chief law enforcement officer's signature. This is often the hardest step. You must submit a written request to your local chief of police, county sheriff, or state police superintendent asking for their written approval. They are not required to sign — it is at their discretion. Some jurisdictions sign routinely; others rarely do. You will need to explain why you want the weapon and provide proof of your identity and residence. Some chiefs require an in-person meeting.

Step 3: Gather documents and take fingerprints and photos. You will need a completed Form 4, two passport-style photographs (2x2 inches), fingerprints taken on an FD-258 card (available from your local police department or through a private fingerprinting service), proof of citizenship or permanent residency, and the chief law enforcement officer's signed approval. Some ATF field offices also require a copy of your driver's license and proof of residence.

Step 4: Submit your process to the ATF. Mail your completed Form 4, photographs, fingerprints, and supporting documents to the ATF's National Firearms Act (NFA) Division. The address is on the form. Include a check or money order for $200 (the federal tax stamp fee). Keep copies of everything you send.

Step 5: Wait for approval. The ATF will conduct a federal background check, which includes checking the FBI's National Crime Information Center database and the National when ready Criminal Background Check System (NICS). This typically takes four to eight months, though some applications take longer. The ATF will mail you a tax stamp once approved. You cannot legally take possession of the weapon until you have the stamp in hand.

What the chief law enforcement officer approval really means

The requirement for your local chief law enforcement officer's signature is one of the most misunderstood parts of the process. The chief is not making a judgment about whether you deserve the weapon or whether you are a good person. They are straightforward confirming that they have no information suggesting you are prohibited from owning firearms under federal law. In practice, many chiefs sign as a matter of routine; others have a blanket policy against signing for Class 3 weapons, regardless of the applicant.

If your chief refuses to sign, you have limited options. Some states have laws that require the chief to sign if you meet the basic requirements, but not all do. You can ask the chief in writing to explain their reason for refusal. You can also contact your state's attorney general's office to ask whether state law requires the chief to sign. In a few cases, people have sued to compel a signature, but this is expensive and uncertain. If you live in a jurisdiction where the chief will not sign, you may not be able to proceed.

Costs and timeline

The federal tax stamp costs $200 per weapon. The weapon itself costs whatever the dealer charges — this varies widely depending on the type and condition. Some dealers charge an additional fee for handling the Class 3 paperwork, usually $50 to $200. Fingerprinting costs $10 to $50 depending on where you go. Photographs are inexpensive or free.

The timeline from process to approval is typically four to eight months, but this varies. The ATF's workload fluctuates, and some field offices are faster than others. During periods of high volume — such as after new regulations are announced — wait times can stretch to a year or longer. There is no way to expedite the process. Once you submit your process, you cannot legally take possession of the weapon, even if you have already paid for it.

After approval: What you can and cannot do

Once you receive your tax stamp, you own that specific weapon legally. You can possess it, use it at a range, and store it. You cannot sell it, give it away, or transfer it to anyone else without filing another Form 4 and paying another $200 tax stamp — even if you are giving it to a family member. If you move to a different state, you must notify the ATF in writing within two weeks.

You must keep your tax stamp with the weapon or in a safe place where you can produce it if law enforcement asks. If the weapon is lost or stolen, you must report it to the ATF and to local police. If you want to sell the weapon, the buyer must go through the same Form 4 process and pay their own $200 tax stamp.

Frequently Asked Questions

Can I get a Class 3 license if my state bans machine guns?

No. Federal law allows Class 3 ownership, but state and local law can prohibit it. If your state bans machine guns, you cannot legally own one there, even with federal approval. Contact your state's fish and wildlife or public safety department to confirm what is legal in your area before explore.

What happens if my chief law enforcement officer refuses to sign?

You cannot proceed with the federal process without their signature. Some states require the chief to sign if you meet the basic requirements; others do not. Check your state's laws or contact your state attorney general's office. If the chief has a blanket policy against signing, your only option may be to move to a different jurisdiction.

How long does the ATF take to approve a Class 3 process?

Most applications take four to eight months from submission to approval. Wait times vary by region and the ATF's current workload. There is no way to expedite the process. During high-volume periods, approval can take a year or longer. You cannot take possession of the weapon until you receive your tax stamp.

Do I need a separate Class 3 license for each weapon I own?

No. You do not get a personal "Class 3 license" at all. Instead, you register each weapon individually and pay a $200 tax stamp per weapon. If you own five Class 3 weapons, you have five separate tax stamps, one for each weapon.

Can I make my own Class 3 weapon instead of buying one?

Yes, using Form 1 instead of Form 4. The process is similar: you still need chief law enforcement officer approval, fingerprints, photographs, and a $200 tax stamp. However, making your own Class 3 weapon is complex and illegal if done incorrectly. Most people buy from a licensed dealer instead.