Revising Machine Gun Definition in Response to Supreme Court Decision

Document 2026-08926 is a Final Rule published by the Department of Justice in the Federal Register on May 6, 2026, with an effective date of May 6, 2026. 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" 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. View the original at https://www.federalregister.gov/documents/2026/05/06/2026-08926/revising-machine-gun-definition-in-response-to-supreme-court-decision.

No. Document 2026-08926 is not classified as economically significant under Executive Order 12866. Economically significant rules require OIRA review and are estimated to have impacts of $100 million or more per year.