Regulations last checked for updates: May 04, 2025

Title 27 - Alcohol, Tobacco Products and Firearms last revised: Mar 20, 2025
§ 19.286 - Gauging of spirits in bottles.

When gauging spirits in bottles, the proprietor may determine the proof and quantity from case markings and label information if the bottles are full and there is no evidence that tampering has occurred.

(26 U.S.C. 5204,5559