27 C.F.R. § 19.599 Change of packages in storage.
Title 27 - Alcohol, Tobacco Products and Firearms
When spirits are transferred from one package to another as authorized in §19.345, each new package shall be given the same package identification number and marks as the original package. The proprietor shall prepare and sign a label to be affixed to the head of each new package in the manner prescribed for affixing distilled spirits stamps. The label shall be in the following form:
The spirits in this __________, (kind of cooperage) __________, (Barrel or drum) package identification No. __________, were transferred from a _________, __________, (kind of cooperage) __________, (Barrel or drum) on __________, (Date), (Proprietor) (Sec. 201, Pub. L. 85–859, 72 Stat. 1360, as amended (26 U.S.C. 5206))
Title 27: Alcohol, Tobacco and Firearms
PART 19—DISTILLED SPIRITS PLANTS
Subpart R—Containers and Marks
Marks
§ 19.599 Change of packages in storage.

