2026-20938NoticeWallet

Customs gets picky: How much 'U.S.' in your imported steel?

Published Date: 10/14/2026

Notice

Summary

Starting October 14, 2026, U.S. Customs will use new rules to figure out how much of a product from Canada or Mexico is made in the U.S. This helps decide if special tariffs on aluminum, steel, and copper apply. If your business deals with these metals, expect changes in how tariffs are calculated, which could affect costs and imports.

Analyzed Economic Effects

3 provisions identified: 0 benefits, 0 costs, 3 mixed.

U.S. content includes U.S.-made parts value

For tariff implementation, 'U.S. content' includes the value of the product that is attributable to parts that are wholly obtained, entirely produced, or substantially transformed in the United States. This definition will be used when assessing whether products of Canada and Mexico qualify for or are subject to tariffs under the referenced proclamation.

Count U.S.-melted or U.S.-smelted metal value

In addition to U.S.-made parts, 'U.S. content' includes, to the extent not otherwise accounted for, the value attributable to steel that was melted and poured in the United States, aluminum that was smelted and cast in the United States, and/or copper that was smelted and cast in the United States. Customs will use this when implementing tariffs under clause (2)(d) of Proclamation 11032.

New U.S.-content rules begin Oct 14, 2026

If you import goods from Canada or Mexico that claim preferential tariff treatment, the guidance applies to products entered for consumption or withdrawn from warehouse for consumption on or after 12:01 a.m. Eastern Time on October 14, 2026. This is the effective cutoff date for applying the new U.S.-content assessment rules when implementing tariffs under Proclamation 11032.

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Key Dates

Published Date
10/14/2026

Department and Agencies

Department
Independent Agency
Agency
Commerce Department
Industry and Security Bureau
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