WTO notification · TBT
United StatesAdopted, according to its latest notice
Official title
Application of the Definition of Machinegun to 'Bump Fire' Stocks and Other Similar Devices
The United States issued an addendum on 7 May 2026 to the earlier TBT notification G/TBT/N/USA/1328. Addenda often report that a measure was adopted, changed, postponed or withdrawn. The measure was first notified on 9 January 2018. The comment period closed on 25 January 2018.
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Machinegun stocks
Latest notice (G/TBT/N/USA/1328/Add.1, 7 May 2026)
The latest notice says the measure was adopted or published.
Revising Machine Gun Definition in Response to Supreme Court Decision
The Bureau of Alcohol, Tobacco, Firearms, and Explosives (''ATF'') is amending Department of Justice (''Department'') regulations in response to the Supreme Court's decision in Garland v. Cargill. The Supreme Court held that ATF exceeded its statutory authority in its December 2018 final rule titled ''Bump-Stock-Type Devices'' (notified as G/TBT/N/USA/1353/Add.1) by classifying a bump stock as a ''machine gun'' because a semi-automatic rifle equipped with a non-mechanical bump-stock-type device is not a ''machine gun'' under the National Firearms Act. Accordingly, ATF is removing from the three regulatory definitions of ''machine gun'' the two sentences that incorporated bump stocks into those definitions. This final rule is effective on 6 May 2026. 91 Federal Register (FR) 24348, 6 May 2026; Title 27 Code of Federal Regulations (CFR) Parts 447, 478, and 479: This final rule is identified by Docket Number ATF No. 2024R-01F. The Docket Folder is available from Regulations.gov by searching the Docket Number. The advanced notice of proposed rule notified as G/TBT/N/USA/1328 is identified by Docket Number ATF-2018-0001. The Docket Folder is available on Regulations.gov at and provides access to primary documents as well as comments received. Documents are also accessible from Regulations.gov by searching the Docket Number. Related documents notified under the symbol G/TBT/N/USA/1353 are identified by Docket Number ATF-2018-0002.
The Department of Justice anticipates issuing a Notice of Proposed Rulemaking (NPRM) that would interpret the statutory definition of 'machinegun' in the National Firearms Act of 1934 and Gun Control Act of 1968 to clarify whether certain devices, commonly known as 'bump fire' stocks, fall within that definition. Before doing so, the Department and ATF need to gather information and comments from the public and industry regarding the nature and scope of the market for these devices.
Every notice about this measure published here, newest first. Each one is the notifying member's own text.
AddendumG/TBT/N/USA/1328/Add.1
Revising Machine Gun Definition in Response to Supreme Court Decision
The Bureau of Alcohol, Tobacco, Firearms, and Explosives (''ATF'') is amending Department of Justice (''Department'') regulations in response to the Supreme Court's decision in Garland v. Cargill. The Supreme Court held that ATF exceeded its statutory authority in its December 2018 final rule titled ''Bump-Stock-Type Devices'' (notified as G/TBT/N/USA/1353/Add.1) by classifying a bump stock as a ''machine gun'' because a semi-automatic rifle equipped with a non-mechanical bump-stock-type device is not a ''machine gun'' under the National Firearms Act. Accordingly, ATF is removing from the three regulatory definitions of ''machine gun'' the two sentences that incorporated bump stocks into those definitions. This final rule is effective on 6 May 2026. 91 Federal Register (FR) 24348, 6 May 2026; Title 27 Code of Federal Regulations (CFR) Parts 447, 478, and 479: This final rule is identified by Docket Number ATF No. 2024R-01F. The Docket Folder is available from Regulations.gov by searching the Docket Number. The advanced notice of proposed rule notified as G/TBT/N/USA/1328 is identified by Docket Number ATF-2018-0001. The Docket Folder is available on Regulations.gov at and provides access to primary documents as well as comments received. Documents are also accessible from Regulations.gov by searching the Docket Number. Related documents notified under the symbol G/TBT/N/USA/1353 are identified by Docket Number ATF-2018-0002.
Regular notificationG/TBT/N/USA/1328
Comment deadline: Closed on 25 January 2018
Application of the Definition of Machinegun to 'Bump Fire' Stocks and Other Similar Devices
The Department of Justice anticipates issuing a Notice of Proposed Rulemaking (NPRM) that would interpret the statutory definition of 'machinegun' in the National Firearms Act of 1934 and Gun Control Act of 1968 to clarify whether certain devices, commonly known as 'bump fire' stocks, fall within that definition. Before doing so, the Department and ATF need to gather information and comments from the public and industry regarding the nature and scope of the market for these devices.
Expodite writes its summary from the official record. The notification and the documents it notifies are on the WTO's own websites.
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