5.38—Net contents.
(a) Bottles conforming to metric standards of fill.
The net contents of distilled spirits shall be stated in the same manner and form as set forth in the standards of fill in § 5.47a.
(b) Bottles not conforming to the metric standards of fill.
The net contents for distilled spirits bottled before January 1, 1980, in bottles not conforming to the metric standards of fill, shall be stated in the same manner and form as set forth in § 5.47(a), except for cordials and liqueurs, cocktails, highballs, bitters and specialties, as specified by the Administrator. The net contents for these specialty products shall be stated in U.S. measure (i.e., gallons, quarts, pints, fluid ounces).
(c) Net contents marked in bottles.
The net contents need not be marked on any lable if they are legibly blown, etched, sandblasted, marked by underglaze coloring, or otherwise permanently marked by any method approved by the appropriate TTB officer on the side, front, or back of the container in an unobscured location. containers of 200 ml or greater capacity shall bear letters and figures of not less than one-quarter inch height.