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Medium urgency

Notice of Technical Corrections to the Harmonized Tariff Schedule of the United States for Duties Imposed by Presidential Proclamation 11021

Detected July 16, 2026 · in Export Controls & ITAR (DDTC / BIS / DFARS)

Technical corrections to HTSUS for duties under Proclamation 11021 (aluminum, steel, copper tariffs) may affect classification and duty rates for defense and dual-use exporters. No direct ITAR/EAR changes, but tariff adjustments can impact supply chain costs and customs compliance.

Aforeworn detected this change in the Export Controls & ITAR (DDTC / BIS / DFARS) space on July 16, 2026 and published this briefing so affected operators are forewarned rather than caught off guard. It is rated Medium urgency. Defense manufacturers, aerospace/dual-use exporters, semiconductor & tech exporters, freight forwarders/brokers importing aluminum, steel, or copper products subject to Proclamation 11021 duties. should confirm how it applies to their specific situation before acting. There is a time constraint attached: Effective upon publication (April 29, 2026); immediate review recommended for upcoming shipments.. Acting after that point can mean penalties, a lapsed licence, or lost eligibility — exactly the kind of surprise Aforeworn exists to prevent. Aforeworn monitors Export Controls & ITAR (DDTC / BIS / DFARS) continuously and turns every detected change into a plain-English briefing like this one, so you always know first. Forewarned is forearmed.

What changed

Technical corrections to the Harmonized Tariff Schedule (HTSUS) for duties imposed by Presidential Proclamation 11021, likely adjusting tariff classifications or duty rates for aluminum, steel, and copper imports.

Who it affects

Defense manufacturers, aerospace/dual-use exporters, semiconductor & tech exporters, freight forwarders/brokers importing aluminum, steel, or copper products subject to Proclamation 11021 duties.

What you must do

Review updated HTSUS codes and duty rates for affected products; ensure customs entries reflect corrected classifications to avoid over/underpayment of duties.

Deadline

Effective upon publication (April 29, 2026); immediate review recommended for upcoming shipments.

Source: https://www.federalregister.gov/documents/2026/04/29/2026-08297/notice-of-technical-corrections-to-the-harmonized-tariff-schedule-of-the-united-states-for-duties

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