Section 232 National Security Tariffs

Section 232 of the Trade Expansion Act of 1962 allows the US to impose tariffs or quotas on imports that threaten national security. These measures are implemented in the HTS under Chapter 99 and often apply to products such as steel and aluminum, by country of origin.

Base HTS rates apply first; Section 232 adds additional duties where applicable. Use our tariff calculator or GET /api/v1/tariffs/resolve with hts and origin to get base tariffs and applicable Section 232 measures.