Department of Treasury, Bureau of Alcohol, Tobacco and Firearms v. Galioto, 477 U.S. 556 (1986), was a United States Supreme Court case.

Generally, convicted felons and mental patients[tone] are prohibited from purchasing firearms in the United States.

§ 925 allowed some felons to appeal to the BATF to restore their rights to purchase firearms.

At that time, prior mental patients did not have a similar route to restore their right to purchase firearms.

Between the time that the Court agreed to hear Galioto, and the time that the case was heard, PL 99-308 was signed into law, allowing former mental patients to appeal to restore their rights to purchase firearms, rendering the case moot.