Rules and Regulations Library
| Title | Description | Category | Document Type |
|---|---|---|---|
 1954-233 - Revolver refitted with a 10-inch barrel (107 KB) |
A revolver refitted with a 10-inch barrel and classified as an “any other weapon” and is a firearm under Sec. 2733(a) of the IRC. | Firearms | Ruling |
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Rev. Rul. 54-181 Classification of certain weapons as any other weapon (318 KB) |
This ruling advises that certain weapons fall within the definition of an “any other weapon” within the purview of the Federal Firearms Act. | Firearms | Ruling |
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ATF Proc. 2020-1 – Recordkeeping procedure for non-over-the-counter firearm sales by licensees to unlicensed in-state residents that are NICS exempt (169 KB) |
This procedure supersedes 2013-2. This ATF procedure gives guidance to licensed importers, manufacturers, and dealers (licensees) on how to complete the Firearms Transaction Record, ATF Form 4473 (Form 4473), as revised effective May 2020, and record the sale of a firearm, when selling to an unlicensed person who (a) Has a valid alternate permit or otherwise is exempt from National Instant Criminal Background Check System (NICS) requirements; (b) Resides in the same State as the licensee; and (c) Does not appear in person at the licensee's business premises. | Rules and Regulations | Ruling |
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ATF Proc. 2020-2 – Recordkeeping and Background Check Procedure for Facilitation of Private Party Firearms Transfers (260 KB) |
This procedure supercedes ATF Procedure 2017-1. The purpose of this ATF procedure is to set forth the recordkeeping and National Instant Criminal Background Check System (NICS) procedures for Federal firearms licensees (FFLs) who facilitate the transfer of firearms between private unlicensed individuals. This procedure does not apply to pawn transactions, consignment sales, or repairs. | Rules and Regulations | Ruling |
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1981-4 - Auto Sear (13 KB) | The AR15 auto sear is a machinegun as defined by 26 U.S.C. 5845(b). | Firearms | Ruling |
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2015-1 - Manufacturing and Gunsmithing (70 KB) |
Any person (including any corporation or other legal entity) engaged in the business of performing machining, molding, casting, forging, printing (additive manufacturing) or other manufacturing process to create a firearm frame or receiver, or to make a frame or receiver suitable for use as part of a "weapon … which will or is designed to or may readily be converted to expel a projectile by the action of an explosive," i.e., a "firearm," must be licensed as a manufacturer under the GCA; identify (mark) any such firearm; and maintain required manufacturer’s records. A business (including an association or society) may not avoid the manufacturing license, marking, and recordkeeping requirements of the GCA by allowing persons to perform manufacturing processes on firearms (including frames or receivers) using machinery or equipment under its dominion and control where that business controls access to, and use of, such machinery or equipment. ATF Ruling 2010-10 is clarified.
| Firearms | Ruling |
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California-Apr2013-Open Letter-Completing ATF Forms 4473 While Complying with CA DOJ Dealer Record of Sale (DROS) Transaction Procedures (43 KB) |
The purpose of this letter is to provide procedures for completing Firearms Transaction Records, ATF Form 4473, while complying with the California Department of Justice (CA DOJ) Dealer Record of Sale (DROS) transaction procedures.
| Firearms | Open Letter |
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1975-21 - Construction of Storage Facilities by the Department of Defense - Concrete Floors (14 KB) |
Certain explosives storage facilities meeting standards of construction prescribed by the Department of Defense Explosives Safety Board are approved
| Explosives | Ruling |
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1977-1 - Gunsmithing at Shooting Events (51 KB) | The recordkeeping requirements for licensed gunsmiths are clarified. ATF Rul. 73-13 amplified. | Firearms | Ruling |
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1977-24 - Storage Compartments on Vehicles (40 KB) |
Alternate magazine construction standards for storage of electric blasting caps with other explosive materials are prescribed.
| Explosives | Ruling |
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1980-20 - Rifle Bore Tasers as Firearms (24 KB) | A hand-held device with a hand grip bent at an angle to the bore and having a rifled bore which is designed to expel, by means of an explosive, two electrical contacts (barbs) connected by two wires to a high voltage source within the device is classified as a firearm. ATF Rul. 76-6 is amplified. | Firearms | Ruling |
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1980-21 - Identification of State of Residency for Out-of-State College Students (23 KB) | An out-of-State college student may establish residence in a State by residing and maintaining a home in a college dormitory or in a location off-campus during the school term. | Firearms | Ruling |
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1980-8 - Importation of Surplus Military Firearms for Law Enforcement (25 KB) | Applications to import surplus military firearms or nonsporting firearms or ammunition for individual law enforcement officers for official use must be accompanied by the agency’s purchase order. | Firearms | Ruling |
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1981-3 - Importation of Firearms Acquired Outside the U.S. by U.S. Citizens (30 KB) | Nonresident U.S. citizens returning to the United States and nonresident aliens lawfully immigrating to the United States may obtain a permit to import firearms acquired outside of the United States, provided such firearms may be lawfully imported. | Firearms | Ruling |
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2003-5 - Distribution of Explosives to Limited Permittees (50 KB) |
Distributors distributing explosive materials via common or contract carrier to limited permittees may verify receipt of the materials by telephone, facsimile, e-mail, or other means within three business days of shipment. ATF Form 5400.4 notation requirements.
| Explosives | Ruling |
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1975-31 - Meaning of the Terms "Engaged in the Business" (13 KB) |
Explosives manufacturer license required for certain companies that manufacture explosive materials for use in their own operations.
| Explosives | Ruling |
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1975-7 - Small Caliber Penguns (51 KB) | A small caliber weapon ostensibly designed to expel only tear gas, similar substances, or pyrotechnic signals, which may readily be converted to expel a projectile by means of an explosive, classified as a firearm. | Firearms | Ruling |
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1976-15 - Acquisition and Disposition of Pawned Firearms (52 KB) | Certain reporting and recordkeeping requirements of pawnbrokers are explained. | Firearms | Ruling |
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1976-18 - Alternate Bullet-Resistant Construction Standards for Explosives Magazines (21 KB) |
ATF prescribes alternate bullet resistance construction standards for explosives storage facilities.
| Explosives | Ruling |
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1976-22 - Qualifying Tax Free Transfers (85 KB) | Mere possession of a license and a special tax stamp as a dealer in firearms does not qualify a person to receive firearms transfer-tax-free. Rev. Rul. 58-432 superseded. | Firearms | Ruling |
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1982-2 - KG-9 Pistol as NFA Weapon (26 KB) | The KG-9 pistol is a machinegun as defined in the National Firearms Act. | Firearms | Ruling |
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2005-4 - A Ported Device Attached to the Barrel of a Paintball Gun (14 KB) |
Certain integral devices intended to diminish the report of paintball guns are not “firearm silencers” or “firearm mufflers” under the Gun Control Act of 1968 or the National Firearms Act.
| Firearms | Ruling |
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1982-8 - SM10, SM11A Pistols and SAC Carbines as NFA Weapons (28 KB) | The SM10 and SM11A1 pistols and SAC carbines are machineguns as defined in the National Firearms Act. | Firearms | Ruling |
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1983-5 - STEN MK II as NFA Weapon (24 KB) |
The YAC STEN MK II carbine is a machinegun as defined in the National Firearms Act.
| Firearms | Ruling |
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2006-2 - Classification of Devices Exclusively Designed to Increase the Rate of Fire of a Semiautomatic Firearm (68 KB) |
The NFA and GCA definition of machinegun includes a part or parts designed and intended for use in converting a weapon into a machinegun. This language includes a device that, when activated by a single pull of the trigger, initiates an automatic firing cycle that continues until the finger is released or the ammunition supply is exhausted.
| Firearms | Ruling |