(a) If the proprietor wishes to conduct additional operations involving spirits, other than those approved on the current registration, the proprietor must:
(1) File form TTB F 5110.41, Registration of Distilled Spirits Plant, to amend the registration; and
(2) Not engage in the additional operations prior to approval of the amended registration.
(b) If the proprietor wishes to engage in another business that is authorized under § 19.55 the proprietor must:
(1) File TTB F 5110.41 to amend the registration;
(2) Include the information required under § 19.73(b); and
(3) Not engage in the other business until approval of the amended registration is received.