27 C.F.R. § 19.483 Recording gauge.
Title 27 - Alcohol, Tobacco Products and Firearms
(a) When packages of spirits are received from customs custody in the storage account, the proprietor shall use the last official gauge to compute and record on the deposit records prescribed in §19.740 for each entry the average content of the packages being received which shall also provide the basis for entries on the package summary records prescribed in §19.741. If the last official gauge indicates a substantial variation in the contents of the packages, the proprietor shall group the packages into lots according to their approximate contents, and assign a separate lot identification to each group of packages, based on the date the packages were received on bonded premises. (b) When packages of spirits are received from customs custody in the processing account, the proprietor shall determine the proof gallons of spirits received in each package. The determination may be made by use of the last official gauge. (Sec. 201, Pub. L. 85–859, 72 Stat. 1360, as amended (26 U.S.C. 5232))
Title 27: Alcohol, Tobacco and Firearms
PART 19—DISTILLED SPIRITS PLANTS
Subpart O—Spirits from Customs Custody
§ 19.483 Recording gauge.

