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The Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF) is proposing to update two regulatory definitions that determine who is legally barred from buying or possessing firearms under federal law. The terms in question are “adjudicated as a mental defective” and “committed to a mental institution.”

Why it matters: Changing these definitions could shift who is flagged in federal background checks for gun purchases. If narrowed, it might remove some people from the prohibited list; if clarified or expanded, it could add others. For now, the practical effect is limited to how courts, state reporting agencies, and the ATF will interpret the categories going forward. The rule is mostly about updating administrative language to match current legal and medical standards.

Who it affects

  • Gun purchasers and background check applicants subject to mental health or competency rulings

This is a proposed rule from the ATF’s Office of Regulatory Affairs published in the Federal Register; the agency is accepting public comments and has not finalized any changes.

Agency: Justice Department, Alcohol, Tobacco, Firearms, and Explosives Bureau
Source: Federal Register — read the official document

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