9903.05.29 Canada Section 301 Forced Labor: 10% Duty

Key Points

• HTS 9903.05.29 imposes an additional 10 percent ad valorem duty on all products of Canada, effective 2026-07-24, with no announced end date.
• The duty applies to all Chapter 1 through 97 goods of Canadian origin under U.S. note 52(a), meaning no product category is carved out at this code.
• Legal authority rests on the USTR Section 301 Forced Labor final action dated 2026-07-23 and is implemented via CSMS 69326983 and U.S. note 52.
• 9903.05.29 is a Chapter 99 overlay code and must be reported on the entry alongside the underlying Chapter 1-97 classification, not in place of it.
• Do not confuse this code with 9903.05.01 through 9903.05.09, which belong to a separate Section 301 Brazil program and are unrelated to this forced-labor action.

On this page

1. What this code is and who needs to act
2. Program background: Section 301 Forced Labor and U.S. note 52
3. Affected products and country scope
4. The 10 percent rate and its effective window
5. How 9903.05.29 stacks with other duties
6. How this code appears on an entry
7. What importers should do
8. Key references

HTS 9903.05.29 is a Chapter 99 supplemental duty code that adds 10 percent ad valorem to every shipment of Canadian-origin goods entered on or after 2026-07-24. Any importer, customs broker, or trade attorney handling Canadian-origin merchandise needs to account for this additional charge on every entry filed from that date forward.

The links in this article go to the primary documents: the USTR final action, CSMS message, and official tariff schedule pages themselves. Read the source.

As of September 1, 2026, the rate is 10 percent and there is no announced end date.

What this code is and who needs to act

9903.05.29 is a country-specific Chapter 99 tariff heading created under the Section 301 Forced Labor program. It targets all products of Canada across every chapter of the HTS (Chapters 1 through 97). If your goods are of Canadian origin and you are filing entries dated 2026-07-24 or later, this code is mandatory on your entry summary.

Customs brokers must add 9903.05.29 as a secondary classification on every qualifying line. Importers relying on automated entry systems should verify that their software has been updated to recognize this code following the CSMS 69326983 notice.

Program background: Section 301 Forced Labor and U.S. note 52

The Section 301 Forced Labor program uses the trade authority of Section 301 of the Trade Act of 1974 to impose additional duties on goods connected to forced labor practices. The Canadian action was finalized by USTR on 2026-07-23, one day before the duty took effect. The implementing framework in the tariff schedule is U.S. note 52, which governs the country headings running from 9903.05.20 through 9903.05.84.

U.S. note 52(a) confirms that the Canadian-origin heading at 9903.05.29 covers all Chapter 1-97 products with no product-level exclusions at this code. CBP issued operational implementation guidance through CSMS 69326983.

Important distinction: Codes 9903.05.01 through 9903.05.09 are part of a separate Section 301 Brazil program. They share the same subchapter numbering neighborhood but have no legal or operational connection to the forced-labor action described here. Do not conflate them.

For context on how similar country-specific forced-labor codes work under U.S. note 52, see our articles on 9903.05.26 Bangladesh and 9903.05.22 Argentina, which carry the same 10 percent rate structure.

Affected products and country scope

Country

9903.05.29 applies exclusively to goods of Canadian origin (country code CA). Origin is determined under the applicable rules of origin, not by country of export or country of shipment.

Product scope

U.S. note 52(a) covers all Chapter 1 through 97 products of Canadian origin. There are no product-level carve-outs, exclusions, or quota thresholds listed in the facts for this code. If you believe a specific product may be outside scope, confirm the current HTSUS text at hts.usitc.gov or with your broker. Do not assume an exclusion exists if you cannot find it in the published schedule.

Entry date applicability

The duty applies to goods entered or withdrawn from warehouse for consumption on or after 2026-07-24. Goods entered before that date are not subject to this additional 10 percent charge under this code. Confirm the exact entry date on your CBP Form 7501 or ACE record.

The 10 percent rate and its effective window

The rate for 9903.05.29 is 10 percent ad valorem, calculated on the customs value of the imported merchandise. The rate has been in effect since 2026-07-24 and has no announced end date as of September 1, 2026.

Because no termination date has been announced, importers should treat this as an ongoing cost of sourcing from Canada until USTR formally modifies or terminates the action. Monitor USTR notices and Federal Register publications at federalregister.gov for any changes.

How 9903.05.29 stacks with other duties

Chapter 99 overlay codes add to, not replace, all other applicable duties. For a typical Canadian-origin entry, the total duty bill may include:

• Column 1 (MFN/NTR) rate from the Chapter 1-97 classification, or the preferential USMCA rate if the goods qualify
• Any other Chapter 99 duties that apply to the product category, such as Section 232 steel and aluminum tariffs or other Section 301 actions
• The 10 percent 9903.05.29 additional duty on top of all of the above

The facts block does not indicate an MFN cap for this code. If you are uncertain whether a cap applies to a specific product, confirm in the current HTSUS or with a licensed customs broker. Use the duty calculator to model stacked duty scenarios for your specific commodity.

If your goods qualify for USMCA preferential treatment, you may still claim that preference on the Chapter 1-97 line, but the 9903.05.29 additional duty is assessed separately and is not eliminated by USMCA preference. Verify the current interaction of these programs with your broker given the recency of this action.

How this code appears on an entry

9903.05.29 is a secondary classification. It rides alongside the primary Chapter 1-97 HTS number on the same entry line; it does not replace it. On CBP Form 7501 and in ACE, you will see two HTS codes reported for each affected line:

• The substantive classification (for example, 8471.30.0100 for a laptop computer)
• 9903.05.29 as the Chapter 99 additional-duty code

The 10 percent is calculated on the entered value of the merchandise on that line. Brokers should confirm that their ACE filing software has incorporated the CSMS 69326983 update and that the code is generating the correct duty calculation before submitting entries. Reference CBP's CSMS bulletin page for the most current operational guidance.

See the current Harmonized Tariff Schedule for the official heading text and U.S. note 52 language. For a broader overview of active 2026 Chapter 99 codes, see our 2026 tariff code overview.

What importers should do

• Audit open purchase orders and shipments. Identify all Canadian-origin goods scheduled to enter on or after 2026-07-24 and recalculate landed costs to include the 10 percent additional duty.
• Confirm broker and ACE system readiness. Verify that your customs broker and any automated filing systems have implemented the CSMS 69326983 update and are reporting 9903.05.29 as a secondary classification on all qualifying entry lines.
• Review USMCA and other preference claims. USMCA preference does not offset this additional duty. Confirm with your broker how all applicable Chapter 99 codes stack for your specific products.
• Monitor for changes. Watch the Federal Register and USTR for any modifications, exclusions, or termination of the Section 301 forced-labor action affecting Canada.

Key references

• Harmonized Tariff Schedule of the United States (USITC) - Official HTS text including Chapter 99 headings and U.S. note 52
• CBP CSMS Bulletins and Announcements - CSMS 69326983: operational implementation of 9903.05.29
• Federal Register (federalregister.gov) - USTR Section 301 Forced Labor final action, 2026-07-23
• Office of the United States Trade Representative (USTR) - Section 301 Forced Labor program information
• 9903.05.26 Bangladesh Section 301 Forced Labor: 10% Duty - Companion article on a parallel 10% forced-labor code
• 9903.05.22 Argentina Section 301 Forced Labor: 10% Duty - Companion article on a parallel 10% forced-labor code