U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
Each bottle or other container of spirits having a capacity of one gallon (3.785 liters) or less must have a closure or other device securely affixed to the container prior to withdrawal from bond or customs custody. The closure or other device must be constructed in such a manner as to require breaking in order to gain access to the contents of the container.