25.53—Submissions of samples of fermented products.
The appropriate TTB officer may, at any time, require you to submit samples of:
(a)
Cereal beverage, saké, or any fermented product produced at the brewery,
(b)
Materials used in the production of cereal beverage, saké, or any fermented product; and
(c)
Cereal beverage, saké, or any fermented product, in conjunction with the filing of a formula.
Code of Federal Regulations
(
26 U.S.C. 5415, 5555, 7805(a)
)