9903.05.93: Canada Exemption from Section 301 Forced Labor Duties

Key Points

• 9903.05.93 is an exemption claim heading, not a duty-imposing one: it removes or reduces the Section 301 forced labor duty for qualifying articles that are the product of Canada.
• The rate shown in the HTSUS general column for this heading is "the duty provided in the applicable subheading," meaning the normal Chapter 1-97 duty applies and no Section 301 forced labor surcharge is added when the heading is properly claimed.
• Eligibility is governed by subdivision (g) of U.S. Note 52 to Subchapter III of Chapter 99; every entry using this heading must satisfy the conditions spelled out in that note.
• This heading rides alongside the underlying Chapter 1-97 classification on the entry and does not replace it; both lines must appear on the CBP entry summary.
• The facts in this article reflect the HTSUS as of September 21, 2026; confirm current note text and any amendment at hts.usitc.gov before filing.

On this page

1. What 9903.05.93 is and what program it belongs to
2. Scope: Canadian-origin articles and subdivision (g) of U.S. Note 52
3. How the rate works: no added duty, just the applicable subheading rate
4. How this heading appears on a CBP entry
5. Interaction with other tariff and trade-remedy provisions
6. What importers should do
7. Key references

9903.05.93 is a Section 301 forced labor exemption heading that applies to articles the product of Canada, as provided for in subdivision (g) of U.S. Note 52 to Subchapter III of Chapter 99 of the HTSUS. Importers who qualify under that note claim this heading on their entry summary to avoid the Section 301 forced labor duty that would otherwise apply. The heading itself carries no additional duty; the only duty owed is the one in the normal, underlying Chapter 1-97 subheading.

The links throughout this article go to the primary documents: the official tariff schedule, CBP guidance pages, and Federal Register resources. Read the source before making classification or entry decisions.

What 9903.05.93 is and what program it belongs to

The Section 301 forced labor tariff program imposes additional duties on certain articles tied to forced labor supply chains. Within that program, Congress and the administering authority created a set of exemption and exception headings, numbered from 9903.05.85 onward and continuing into the 9903.06 block, to relieve qualifying importers from those additional duties in defined circumstances.

9903.05.93 is one of those relief headings. Its official HTSUS text reads: "Articles the product of Canada, as provided for in subdivision (g) of U.S. note 52 to this subchapter." The heading exists solely to let an importer signal to CBP that their Canadian-origin merchandise meets the criteria in Note 52(g) and is therefore not subject to the forced labor surcharge.

For context on closely related exemption headings in the same block, see the articles on 9903.05.91 (humanitarian donations), 9903.05.90, 9903.05.89 (pharmaceutical articles), and 9903.05.88 (civil aircraft).

Scope: Canadian-origin articles and subdivision (g) of U.S. Note 52

The heading's coverage is defined by two interlocking requirements:

• Country of origin: The merchandise must be the product of Canada. "Product of Canada" in the HTSUS context means the goods originate in Canada under the applicable origin rules. Country-of-origin determinations for this purpose should be confirmed with a broker or through CBP's established substantial-transformation or USMCA rules, as appropriate for the goods.
• Subdivision (g) conditions: The goods must satisfy all conditions set out in subdivision (g) of U.S. Note 52 to Subchapter III of Chapter 99. The facts block does not reproduce the full text of that note here; importers must read Note 52(g) directly in the current HTSUS to understand the product-specific or transactional criteria that must be met.

If your goods are of Canadian origin but do not meet the subdivision (g) criteria, 9903.05.93 is not available. Attempting to claim it when the conditions are not satisfied creates classification and penalty exposure. The UFLPA rebuttable presumption article explains the parallel forced labor enforcement framework that may also be relevant for Canadian supply chains with upstream inputs from restricted regions.

How the rate works: no added duty, just the applicable subheading rate

The HTSUS general column rate for 9903.05.93 is stated as: "The duty provided in the applicable subheading." This phrasing is the mechanism of the exemption. It means:

• No Section 301 forced labor additional duty is layered on top of the Chapter 1-97 rate.
• The importer pays only the normal duty rate that applies to the goods' underlying classification in Chapters 1 through 97 of the HTSUS.
• Other duties that may apply independently, such as antidumping or countervailing duties, most-favored-nation rates, or other Section 301 tariffs unrelated to forced labor, are not affected by this heading. Confirm any stacking obligations separately.

This "applicable subheading" rate construct is standard across the Section 301 forced labor exemption headings. It is how the schedule preserves the base duty while waiving the program-specific surcharge for eligible goods.

How this heading appears on a CBP entry

Chapter 99 exemption and claim headings always appear as a second line on the CBP entry summary, alongside the primary Chapter 1-97 classification. For an entry using 9903.05.93, the entry summary will show:

• Line 1: The regular HTS subheading from Chapters 1-97 that describes the merchandise, with its normal duty rate.
• Line 2: 9903.05.93 as the Chapter 99 claim, with the rate "the duty provided in the applicable subheading," signaling to CBP that the forced labor exemption is being invoked.

CBP's Automated Commercial Environment (ACE) system requires both lines to be present for the exemption to be recognized at liquidation. A missing or incorrect Chapter 99 claim line means the exemption will not be applied and the additional duty may be assessed. For guidance on reviewing entry data for errors like this, see what an AI audit of ACE entry data actually produces.

Importers and brokers should also maintain documentation supporting the Canadian origin and the subdivision (g) eligibility of the goods. CBP may request this documentation during a post-entry review or audit. Recordkeeping obligations under 19 USC 1509 apply; the article on customs recordkeeping penalties under 19 USC 1509 explains what is at stake if documentation is missing or inadequate.

Interaction with other tariff and trade-remedy provisions

Claiming 9903.05.93 addresses only the Section 301 forced labor duty. It does not:

• Exempt the goods from any other Section 301 tariffs that may apply to Canadian-origin goods under different proclamations or executive orders.
• Waive antidumping or countervailing duty orders that cover the same merchandise.
• Override USMCA preferential duty treatment: if goods also qualify for USMCA, that claim is made separately on the entry and produces its own rate effect on the Chapter 1-97 line. Confirm with your broker how USMCA and this exemption interact on a specific entry.
• Address the Uyghur Forced Labor Prevention Act (UFLPA) rebuttable presumption, which is a separate admissibility determination enforced by CBP independently of the Section 301 tariff program.

The facts block is silent on which specific product categories are covered by subdivision (g) of Note 52. To identify whether your particular goods fall within scope, read Note 52(g) in the current HTSUS and confirm with a licensed customs broker.

If an entry was liquidated without the 9903.05.93 claim and the importer believes it was eligible, a protest under 19 USC 1514 may be the appropriate remedy. See the article on CBP protests under 19 USC 1514 for how that process works.

What importers should do

• Read U.S. Note 52(g) directly. Pull the current text from hts.usitc.gov and confirm your goods and Canadian origin status satisfy every condition in subdivision (g) before claiming this heading on any entry.
• Add the Chapter 99 line to every qualifying entry. Work with your customs broker to ensure 9903.05.93 appears as a second HTS line on the ACE entry summary alongside the Chapter 1-97 classification for every shipment where the exemption applies.
• Retain origin and eligibility documentation. Keep records that demonstrate Canadian origin and subdivision (g) compliance for at least five years to satisfy CBP recordkeeping requirements under 19 USC 1509.
• Check for stacking duties. Confirm independently whether antidumping, countervailing, or other Section 301 duties apply to your goods, as 9903.05.93 does not waive those. Use the duty calculator to model the full landed duty picture.

Key references

• Harmonized Tariff Schedule of the United States, hts.usitc.gov: The authoritative source for the current text of 9903.05.93 and U.S. Note 52, including subdivision (g).
• U.S. Customs and Border Protection, cbp.gov: CBP guidance on entry filing, forced labor enforcement, and UFLPA implementation.
• Federal Register, federalregister.gov: Notices and rules implementing the Section 301 forced labor tariff program and its exemptions.
• 19 USC 1514, law.cornell.edu: The protest statute for challenging CBP liquidation decisions, including missed exemption claims.
• 19 USC 1509, law.cornell.edu: The recordkeeping statute governing what importers must retain and for how long.
• 9903.05.85 Section 301 Forced Labor Transit Exemption Explained: Background on the first heading in the forced labor exemption block.
• UFLPA Rebuttable Presumption: How to Overcome It at CBP: The parallel admissibility framework relevant to Canadian supply chains with restricted upstream inputs.
• 2026 Tariff Code Overview: Context on Chapter 99 coding changes in effect for 2026 entries.