22 C.F.R. § 123.19 Canadian and Mexican border shipments.
Title 22 - Foreign Relations
A shipment originating in Canada or Mexico which incidentally transits the United States en route to a delivery point in the same country that originated the shipment is exempt from the requirement for an in transit license.
Title 22: Foreign Relations
PART 123—LICENSES FOR THE EXPORT OF DEFENSE ARTICLES
§ 123.19 Canadian and Mexican border shipments.
