Guidance to U.S. Customs and Border Protection Regarding the Assessment of “U.S. Content” for Purposes of Implementing Tariffs Pursuant to Clause (2)(D) of Proclamation 11032 of June 1, 2026

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Commerce Bureau of Industry and Security [Docket No. 260918-0056] XRIN 0694-XC163 ( printed page 65162) AGENCY: Bureau of Industry and Security, Department of Commerce. ACTION: Notice. SUMMARY: This notice provides guidance to U.S. Customs and Border Protection regarding the assessment of “U.S. content” for products of Canada and Mexico that qualify for preferential tariff treatment under the United States-Mexico-Canada Agreement, for purposes of implementing tariffs pursuant to Proclamation 11032 of June 1, 2026. DATES: The guidance set out in in this notice is effective with respect to products that are entered for consumption, or withdrawn from warehouse for consumption, on or after 12:01 a.m. Eastern Time on October 14, 2026. SUPPLEMENTARY INFORMATION: Background On June 1, 2026, the President issued Presidential Proclamation 11032 entitled “Further Adjusting the Tariff Regimes for Imports of Aluminum, Steel, and Copper into the United States” ( 91 FR 34085 ) (Proclamation). The Proclamation modifies the tariff regimes for metal products imposed in Presidential Proclamation 9704, as amended, Proclamation 9705, as amended, and Proclamation 10962, as amended, and directs the Secretary of Commerce (Secretary) to issue guidance to U.S. Customs and Border Protection regarding the assessment of “U.S. content” for purposes of implementing tariffs pursuant to clause (2)(d) of the Proclamation. The Secretary has delegated this duty…