27 C.F.R. § 5.56 Certificates of age and origin.
Title 27 - Alcohol, Tobacco Products and Firearms
Distilled spirits imported in bulk for bottling in the United States shall not be removed from the plant where bottled unless the bottler possesses certificates of age and certificates of origin applicable to such spirits which are similar to the certificates required by §5.52 for like distilled spirits imported in bottles.
Title 27: Alcohol, Tobacco and Firearms
PART 5—LABELING AND ADVERTISING OF DISTILLED SPIRITS
Subpart G—Requirements for Approval of Labels of Domestically Bottled Distilled Spirits
§ 5.56 Certificates of age and origin.