27 CFR 19.121: Change in production procedure.

If the proprietor plans to produce a new product or make a change to the production procedure that will affect the designation of the product or substantially affect the character of the product, the proprietor must:

(a) File form TTB F 5110.41, Registration of Distilled Spirits Plant, to amend the registration;

(b) Provide a new statement of production procedure as described in § 19.77; and

(c) Receive approval of the amended registration before implementing the change in the production procedure.