Data for NOEP's Ports and Cargo section are extracted from the import and
export "Port" data series produced by the
Foreign Trade Division of the US Census Bureau.
The collection and publication of U.S. foreign commerce and trade statistics
has been the responsibility of the Department of Commerce since 1905 and is
assigned to the Census Bureau.
Data on most US exports are controlled and collected by the Census Bureau.
Exceptions are made for exports to Canada, which are represented by
agreement from Canadian import data, and for defense military and certain
foreign aid shipments and pass through shipments, which are not included
in the data. Export data contain the codes for the originating port, the
final destination country, and the trade good or commodity, and the
weights and dollar values for each type of shipment (air, vessel, and
Import data are collected and compiled by the Census Bureau from the
US Customs Service systems for most shipments to the US. Exceptions are
made for returns of military and other government agency goods and supplies,
monetary gold and silver, monetary coinage, and shipments en-route to other
countries. The import data include codes for the receiving port, the
originating country, and the commodity, and the cargo weights and dollar
values by type of shipment.
NOEP filters these data to include only marine based shipments and
summarizes them by year, port, and major commodity categories. The
summarized data, from 1997 to the most current year, are made available
on this website. These can be queried from our database by year, state,
and port. Additional query options will be added in later releases.