upon the following Harmonized Tariff Schedule (HTS) of the United
(2022) codes for motor vehicles: 870120, 870210, 870290,
870322, 870323, 870324, 870331, 870332, 870333, 870390, 870421, 870422, 870423,
870431, 870432, 870490, and 870600. U.S. Department of Transportation, Bureau
of Transportation Statistics, analysis based upon trade data from the U.S.
International Trade Commission, Data Web, available at https://dataweb.usitc.gov/
of July 2022.
top ports are based on 2020 port rankings provided by the U.S. Army Corps of
Engineer, Waterborne Commerce Statistics Center as of July 2022.
Roll-on/Roll-off (Ro/Ro) vessels calls were only observed at 22 of the top U.S.
ports. U.S. Department of Transportation, Bureau of Transportation Statistics,
calculated using AIS data from the U.S. Coast Guard’s Nationwide Automatic
Identification System (NAIS) archive, processed by U.S. Army Engineer Research
and Development Center, Coastal and Hydraulics Laboratory, through the AIS
Analysis Package (AISAP) software package as of October 2022. Numbers
may not add to total due to independent rounding.