Section 338 Canada scope changes October 30: 22 codes lose the 50% duty and 100 additional codes become subject to 50%.

Summary

CBP is implementing the October 23, 2026 Presidential Proclamation modifying Section 338 duties on Canadian goods. Effective October 30, 2026, 22 specified HTSUS classifications are removed from the 50% additional duty under 9903.03.14, while 100 additional classifications become subject to the 50% duty. Brokers must update entry logic, review Canadian imports, and apply the applicable Chapter 99 reporting.

CBP is implementing further modifications to the Section 338 additional duties imposed on certain products of Canada. For goods entered for consumption or withdrawn from warehouse for consumption on or after October 30, 2026, 22 listed HTSUS classifications will no longer be subject to the 50% additional ad valorem duty under HTSUS 9903.03.14. The affected classifications include 1212.21.00, 3920.20.00, 3923.10.90, 4412.33.06, 4819.10.00, 8418.69.01, 8422.40.91, and 8433.60.00, among others. CBP also states that 100 additional HTSUS classifications will become subject to 9903.03.14 and its 50% additional duty. The attached modified list identifies the complete coverage, including examples such as 0406.90.99, 0409.00.00, 1806.10.05, 3923.30.00, 8517.62.00, and 8703.21.01. There are no changes to classifications under 9903.03.12 or 9903.03.13. Brokers should update tariff software and ACE filing procedures, validate Canadian-origin entries against the revised list, and continue reviewing Chapter 98, foreign-trade-zone, drawback, and overlapping duty provisions. Products covered by 9903.03.12 through 9903.03.16 remain subject to applicable ADD/CVD and other duties unless a specific exclusion applies.

HTS codes cited (33)
  • 9903.03.14
  • 9903.03.12
  • 9903.03.13
  • 9903.03.15
  • 9903.03.16
  • 1212.21.00
  • 3920.20.00
  • 3923.10.90
  • 3923.21.00
  • 4412.33.06
  • 4412.33.26
  • 4412.33.32
  • 4412.33.57
  • 4412.34.26
  • 4412.34.32
  • 4412.34.57
  • 4811.51.20
  • 4811.51.40
Show all 33 codes
  • 4819.10.00
  • 4819.40.00
  • 4823.70.00
  • 4823.90.10
  • 8418.69.01
  • 8419.89.95
  • 8422.30.91
  • 8422.40.91
  • 8433.60.00
  • 0406.90.99
  • 0409.00.00
  • 1806.10.05
  • 3923.30.00
  • 8517.62.00
  • 8703.21.01

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