27 CFR 5.46 - Standard liquor bottles.
(a) General. A standard liquor bottle shall be one so made and formed, and so filled, as not to mislead the purchaser. An individual carton or other container of a bottle shall not be so designed as to mislead purchasers as to the size of the bottles.
(b) Headspace. A liquor bottle of a capacity of 200 milliliters or more shall be held to be so filled as to mislead the purchaser if it has a headspace in excess of 8 percent of the total capacity of the bottle after closure.
(c) Design. A liquor bottle shall be held (irrespective of the correctness of the stated net contents) to be so made and formed as to mislead the purchaser, if its actual capacity is substantially less than the capacity it appears to have upon visual examination under ordinary conditions of purchase or use.
(d) Exceptions -
(1) Distinctive liquor bottles. The headspace and design requirements in paragraphs (b) and (c) of this section do not apply to liquor bottles that are specifically exempted by the appropriate TTB officer, pursuant to an application filed by the bottler or importer.
(2) Cross reference. For procedures regarding the issuance, denial and revocation of distinctive liquor bottle approvals, as well as appeal procedures, see part 13 of this chapter.