Bulk container.

Bulk container. When used in the context of distilled spirits, the term bulk container means any container having a capacity larger than one wine gallon. When used in the context of wine, the term bulk container means any container having a capacity larger than 60 liters. When used in the context of beer, the term bulk container means any container having a capacity larger than one barrel of 31 gallons.

Source

27 CFR § 26.11

Scoping language

When used in this part and in forms prescribed under this part, where not otherwise distinctly expressed or manifestly incompatible with the intent thereof, terms shall have the meaning ascribed in this section. Words in the plural form shall include the singular and vice versa, and words importing the masculine gender shall include the feminine. The terms includes and including do not exclude things not enumerated which are in the same general class.