27 C.F.R. § 19.643
Before beginning the business of manufacturing vinegar by the vaporizing process, a person must make written application to the appropriate TTB officer and receive approval of the application from TTB. The application must include:
(d) A description of each still, including the name and address of the owner, the kind of still and its capacity, and the purpose for which the still was set up.
(26 U.S.C. 5502)