19 C.F.R. § 148.15 Inclusion of articles not for personal or household use.
Title 19 - Customs Duties
Articles not personal in character, or which are intended for sale or are brought in on commission for another person, may be included in the baggage declaration of a resident or nonresident under the conditions specified in §148.23(c). If not so included, regular entry shall be required.
Title 19: Customs Duties
PART 148—PERSONAL DECLARATIONS AND EXEMPTIONS
Subpart B—Declarations
§ 148.15 Inclusion of articles not for personal or household use.

