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

Brief takeaway: This notice makes technical corrections to the HTSUS provisions implementing metal-import duties under Presidential Proclamation 11021, so importers of covered metal products may need to review the updated tariff language.

What changed: According to the notice, the President issued Proclamation 11021 on April 2, 2026 to adjust imports of aluminum, steel, and copper products for national security reasons, and authorized the Secretary of Commerce to publish HTSUS modifications and technical corrections. The notice states that it issues two technical corrections to Annex IV of the Proclamation, along with a clarification.

Who's affected: The notice cites imports of aluminum, steel, and copper products. Specific HTS chapters or codes affected by the corrections are contained in Annex IV of the Proclamation and are not enumerated in this notice text; the notice does not name particular countries of origin.

What to review:
- Review whether your products fall within the aluminum, steel, or copper categories referenced by Proclamation 11021 and Annex IV.
- Check the corrected Annex IV HTSUS provisions against the classifications you currently use.
- Confirm the April 6, 2026 effective date and how the corrections and clarification may apply to your entries with your broker.
- Confirm current duty treatment and reporting requirements for covered metal imports with your licensed customs broker or CBP.

This is general information, not legal advice and not a compliance determination — confirm specifics with a licensed customs broker or trade counsel.