27 C.F.R. § 18.24
Data for application
Applications on form TTB F 5520.3 will include the following:
(a) Serial number;
(b) Name and principal business address of the applicant, and the location of the plant if different from the business address;
(c) Purpose for which filed;
(d) Information regarding proprietorship, supported by the organizational documents listed in § 18.25; and
(e) Description of each still and a statement of its maximum capacity.