An ATF Ruling is a formal ruling published by the US Bureau of Alcohol, Tobacco, Firearms, and Explosives stating its interpretation of the law and regulations as applied to a specific set of facts. ¹

1. National Firearms Act Handbook. ⇒ U.S. Dept. of Justice, Bureau of Alcohol, Tobacco, Firearms and Explosives, Office of Enforcement Programs and Services, 2009. p. 2.