AAFA State Reports: About the Data
All data come from Trade Partnership Worldwide’s State Tariff Tracker (“Tracker”) database. The Tracker compiles combines national import and tariff data from the U.S. Census Bureau (Census), including details on special provisions that either lower tariffs (e.g., preference claims such as USMCA, GSP) or increase them (e.g., Chapter 99 rates for Section 301 tariffs), tariff schedules from the U.S. International Trade Commission (ITC), and state import value data from Census. It is a first-of-its-kind resource to estimate state-level trade and tariff impacts that previously were only available nationally, or not at all.
The Census state data — and therefore TPW’s Tracker data — rely on information provided by companies on each shipment’s import declaration. Census instructs companies to report the shipment's “state of destination.” If a shipment is destined for multiple states, companies are instructed to provide the state with the highest aggregate value. If the destination is unknown, companies are instructed to report the state of the ultimate beneficiary. If that also is unknown, Census will use the state where the entry was filed. For more information on Census data collection and reporting, visit the Census.
The Tracker contains monthly data for all products (HTS10), all countries, all programs, and all rate provisions. Historical data are available from 2013 and are updated monthly as new Census data become available.