US additional duties
Other US additional duties
Other US additional duties of Chapter 99: the Section 338 duties on products of Canada, the rates of Russia and others, with rates, notices and changes.
Measures in service
| Heading | Measure | Rate | Countries | Products | In effect |
|---|---|---|---|---|---|
| 9903.03.12 | Additional duty on products of Canada — heading 9903.03.12 | 50% | CA | 101 codes | From 2026-10-30 |
| 9903.03.13 | Additional duty on products of Canada — heading 9903.03.13 | 50% | CA | 52 codes | From 2026-10-30 |
| 9903.03.14 | Additional duty on products of Canada — heading 9903.03.14 | 50% | CA | 591 codes | From 2026-10-30 |
| 9903.03.16 | Civil aircraft exemption from the note 51 duties | no duty of its own: it changes or removes other duties | CA | 554 codes | From 2026-10-30 |
| 9903.90.08 | Products of Russia — 35 percent in lieu of column 2 | 35% | RU | 553 codes | From 2026-09-28 |
| 9903.90.09 | Products of Russia — 70 percent in lieu of column 2 | 70% | RU | 127 codes | From 2026-09-28 |
Each measure as TariffTrust reads the official texts; what a product owes depends on every measure that applies to it.
Official notices
- Sep 8, 2026 · The White House Modifying the Scope of Products of Canada Subject to the Additional Duties Imposed To Offset Canadian Discrimination Against the Commerce of the United States With Respect to Motor Vehicles
- Jul 20, 2026 · The White House Imposing Additional Duties To Offset Canadian Discrimination Against the Commerce of the United States With Respect to Motor Vehicles
Recent changes
- Oct 31, 2026 9903.03.14 · Additional duty on products of Canada — heading 9903.03.14 — HTS codes covered: 100 removed. — Start date: 2026-10-30 → none.
- Oct 31, 2026 9903.03.14 · Additional duty on products of Canada — heading 9903.03.14 — HTS codes covered: 22 removed. — End date: 2026-10-30 → none.
- Oct 24, 2026 9903.03.14 · Additional duty on products of Canada — heading 9903.03.14 — HTS codes covered: 100 added. — From 2026-10-30.