US customs tariffs news: June 2026

News in brief: the US further adjusts its Section 232 tariffs on steel, aluminium and copper, moving agricultural and mobile industrial equipment into a reduced band and easing the US-content threshold; the US Trade Representative proposes Section 301 tariffs on all products of 60 economies, including the EU and UK, for failing to prohibit or enforce against imports made with forced labour; CBP consolidates its three forced-labour enforcement authorities - Section 1307, the UFLPA and CAATSA - into a single operational guidance for importers; Executive Order directs DHS and CBP to strengthen customs enforcement through future rulemaking, tightening importer-of-record eligibility, disclosure, penalties and vetting; and CBP updates its CAPE tool for IEEPA duty refunds.