19 C.F.R. § 162.5 Search of arriving vehicles and aircraft.
Title 19 - Customs Duties
A customs officer may stop any vehicle and board any aircraft arriving in the United States from a foreign country for the purpose of examining the manifest and other documents and papers and examining, inspecting, and searching the vehicle or aircraft. [T.D. 72–211, 37 FR 16488, Aug. 15, 1972, as amended by T.D. 90–34, 55 FR 17597, Apr. 26, 1990]
Title 19: Customs Duties
PART 162—INSPECTION, SEARCH, AND SEIZURE
Subpart A—Inspection, Examination, and Search
§ 162.5 Search of arriving vehicles and aircraft.

