Free Tool
Section 301 Lookup
Enter an HTS code and instantly see whether it hits the Section 301 punitive tariffs, which list, the 9903.88.xx subheading and the exact rate — plus Section 232 and AD/CVD flags on the same HTS.
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301 Hit DetectionReturns whether your HTS is on the Section 301 lists, which list, and the 9903.88.xx subheading.
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All ListsList 1, 2, 3, 4A and 4B — 25% / 7.5% tiers with effective dates and Federal Register citations.
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Rev-Fresh DataTracks the current USTR revision (e.g. Rev 18) so you are not quoting 2018-era rates.
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232 + AD/CVD SidebarThe same HTS checked against Section 232 and active AD/CVD cases on China.
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Enter an HTS code above and click Look up to see whether it is subject to the Section 301 tariffs.
The Section 301 China Tariffs at a Glance
Section 301 (Trade Act of 1974) lets the USTR impose additional tariffs on imported goods. The China tariff campaign has shipped in four lists, each a batch of HTS subheadings that carry an extra 7.5% or 25% duty on top of the Column 1 general rate, collected through 99th-chapter subheadings such as 9903.88.xx. Old blog posts still quote the 2018 numbers — this tool reflects the latest revision.
| List | 99th-chapter code | Rate | Effective | Federal Register |
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| List 1 | 9903.88.01 | +25% | 2018-07-06 | 83 FR 28774 |
| List 2 | 9903.88.02 | +25% | 2018-08-23 | 83 FR 40823 |
| List 3 | 9903.88.03 | +25% | 2019-05-10 | 84 FR 20474 |
| List 4A | 9903.88.15 | +7.5% | 2020-02-14（原 15%） | 84 FR 43304 |
| List 4B | 9903.88.16 | Suspended — never in force | 2019-12-18 起暂停 | 84 FR 243 |
List 4A settled at 7.5% under the Phase One deal (reduced from 15% on 14 February 2020). List 4B (9903.88.16) was announced but has been suspended since 18 December 2019 (84 FR 243) and never implemented. This table is a summary — always confirm against the current USTR revision (e.g. Rev 18) and the latest HTSUS.
Section 301 Tariff Lookup — 25% China Tariff & HTS Code Check
The US Section 301 tariffs on China add 7.5% or 25% to the Column 1 general duty on thousands of HTS subheadings, collected through 99th-chapter codes like 9903.88.03. Because the lists were introduced in batches since 2018 — and have been revised through multiple USTR revisions (the current one is Rev 18) — many older articles still quote outdated rates. This free tool lets you type any 10-digit HTS and see immediately whether it is on the list, which list it belongs to, the 9903.88.xx subheading, and the exact additional rate.
Beyond Section 301, the same HTS is checked against Section 232 (steel, aluminum, copper, autos) and against active AD/CVD cases on China, so you get one consolidated view of every extra duty that can stack on your shipment before you quote a landed cost.
Frequently Asked Questions
What is the Section 301 tariff on China?
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Section 301 of the Trade Act of 1974 authorizes the USTR to impose additional duties on imports found to burden US commerce. Since 2018 the USTR has applied additional tariffs of 7.5% or 25% to thousands of Chinese-origin HTS subheadings, collected through 99th-chapter codes such as 9903.88.03.
What does "hit" mean in this tool?
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A hit means your HTS subheading is covered by a Section 301 list, so an additional 7.5% or 25% duty applies on top of the Column 1 general rate for goods of Chinese origin.
Which lists exist and what rates do they carry?
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List 1, List 2 and List 3 carry 25%; List 4A carries 7.5% (reduced from 15% on 14 February 2020 under the Phase One deal). List 4B was announced but has been suspended since 18 December 2019 (84 FR 243) and never implemented. Each list is a batch of HTS subheadings with its own 9903.88.xx codes and Federal Register citation.
Why do I see outdated rates everywhere?
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The lists were rolled out from mid-2018 and the 301 program has been revised many times (the USTR is on revision 18). Many posts written in 2018 still describe only the early lists, so checking the current revision matters.
Does a hit mean the duty always applies?
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No. Exclusions can temporarily remove specific subheadings, and origin matters: goods of Chinese origin trigger the list, while goods substantially transformed in a third country may not. This tool shows exclusion and origin status where recorded.
How do Section 232 and AD/CVD differ from Section 301?
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Section 232 (trade expansion of 1962) adds duties on steel, aluminum, copper and autos for national-security reasons; AD/CVD cases address dumping and subsidized imports and can add case-specific rates. This tool flags both on the same HTS so you can budget for stacked duties.
Why does my result show "Rate pending" instead of a rate?
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A few 99th-chapter subheadings (such as 9903.91.05 / 9903.91.06, mostly the 9903.91.xx / 9903.92.xx codes added in the 2024 four-year review) carry no rate metadata in the official China Tariffs list. This tool never substitutes 0% as if no duty applied — when a hit lands on such a code it shows "Rate pending", meaning list coverage is confirmed but you should confirm the exact rate with the official USTR / HTSUS sources before quoting it.
Why does the 232 sidebar sometimes say "232 coverage pending"?
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Section 232 (steel, aluminum, copper, autos) coverage for many HTS subheadings is still being loaded from the official CBP / USITC lists. Until the coverage table for a program is populated, the sidebar shows "coverage pending" instead of claiming there is no 232 duty — an empty lookup result should never be mistaken for a zero duty.
How do Section 301 exclusions work and when do they expire?
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The 178-item exclusion tranche (9903.88.69) temporarily removes certain subheadings from the underlying list rate. It is currently in force until 2026-11-09 23:59 ET; after that date the underlying list rate snaps back unless the exclusion is renewed. This tool shows exclusion records where maintained in our database and flags the expiry date when present.
This tool is a lookup aid only and reflects the data currently maintained in our tariff database. Rates, lists and exclusions change — always confirm the binding classification and applicable rate with a licensed customs broker or the official USTR / HTSUS sources.
© ChineseVerify. This tool provides informational tariff lookup only and does not constitute legal, customs or trade advice. It is not an official USTR or US Customs publication. Always verify the applicable HTS classification, rate and exclusions with a licensed customs broker or the official HTSUS / USTR sources before relying on any figure.
