27 C.F.R. § 27.172
(a) Preparation of records.
(b) Reporting information for release from customs custody. In the case of distilled spirits, natural wines, and beer imported into the United States without payment of tax under this subpart, the importer, if filing electronically, must file with U.S. Customs and Border Protection (CBP) the information specified in this section at the time of filing the entry or entry summary, as appropriate, along with any other information that is required by CBP to be filed with the entry or entry summary for purposes of administering the provisions of the Internal Revenue Code and Federal Alcohol Administration Act (FAA Act). Any information required by this section that is also required by, and filed with, CBP as part of the entry or entry summary for purposes of meeting CBP requirements will satisfy the requirements of this section. Regardless of the method of filing, the importer must retain as a record the information required by this section, any information provided to CBP to meet CBP requirements, and any supporting documentation and make such records available for inspection by the appropriate TTB officer or a customs officer. The following information is required:
(5) Information identifying each product for Internal Revenue Code and/or FAA Act purposes.
(Approved by the Office of Management and Budget under control number 1513-0064)
[T.D. TTB-145, 81 FR 94207, Dec. 22, 2016]