27 CFR § 24.191
Segregation of operations
April 24, 2020
Where more than one process of producing effervescent wine is used, the appropriate TTB officer may require the portion of the premises used for the production and storage of wine made by each process (bottle fermenting, bulk fermenting, or injecting carbon dioxide) to be segregated as provided by §24.27.
(Sec. 201, Pub. L. 85-859, 72 Stat. 1381, as amended (26 U.S.C. 5365))
[T.D. TTB-147, 82 FR 7663, Jan. 23, 2017]