(a) U.S. exports to Canada by truck
(b) Imports from Canada to the United States by truck
U.S. state: For U.S. exports to Canada, the U.S. state is based on the state of origin as reported on official U.S. trade documents, which typically refer to the state of origin where the goods were grown, manufactured, or otherwise produced. For U.S. imports from Canada, the U.S. state of destination reflects the state of the importer of record. This state may not always represent the ultimate physical destination of shipments.
Canadian Province: For U.S. exports to Canada, the Canadian province of clearance is the province in which Canadian Customs cleared the shipment, and may not always be the province of final destination. For U.S. imports from Canada, the Canadian province of origin typically refers to the province of origin where the goods were grown, manufactured or otherwise produced.
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Transborder Surface Freight data, special tabulation, December 2000.