This joint resolution nullifies the rule issued by the Bureau of Alcohol, Tobacco, Firearms and Explosives titled Factoring Criteria for Firearms With Attached "Stabilizing Braces" and published on January 31, 2023. The rule establishes criteria for determining whether a firearm equipped with an attached stabilizing brace that facilitates shoulder fire is a rifle subject to regulation (e.g., registration) under the National Firearms Act.