Business day.

Business day. Any day, other than a Saturday, Sunday, or a legal holiday. (The term legal holiday includes all holidays in the District of Columbia and, in the case of bonded manufacturers in Puerto Rico, all legal holidays in the Commonwealth of Puerto Rico.)

Source

27 CFR § 41.11

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Scoping language

When used in this part and in forms prescribed under this part, the following terms shall have the meanings given in this section, unless the context clearly indicates otherwise. Words in the plural form shall include the singular, and vice versa, and words indicating the masculine gender shall include the feminine. The terms includes and including do not exclude things not listed which are in the same general class.

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