27 C.F.R. § 19.483 — Specifications for marks.
§ 19.483 Specifications for marks. (a) Basic requirements. A proprietor must place the marks prescribed by this subpart on cases, encased containers, and packages of spirits and denatured spirits so that they are: (1) Of adequate size to be easily read; (2) Of a color in distinct contrast to the color of the background; (3) Legible; and (4) Durably affixed. (b) Use of labels. A proprietor may use labels as the means for applying prescribed marks if the labels meet the requirements of paragraph (a) of this section. (c) Location. A proprietor must place the prescribed marks on one side of the case or encased container, or on the head of the package. (26 U.S.C. 5206)