Changelog

Changes to the tariff data we serve, the government notices we read, and what shipped in the API, newest first. Data changes and notices marked "Affects our rates" change what the API returns; API changes are releases. Current API version v1.

Government notice No rate change Federal Register

2026 Review of Notorious Markets for Counterfeiting and Piracy: Comment Request

USTR comment request for the 2026 Notorious Markets List review (Special 301 IP program, 19 USC 2242); no tariff or duty content.
USTR opened the comment period for its 2026 Notorious Markets List review, covering markets linked to counterfeiting and piracy, with comments due October 7, 2026. This is an intellectual-property review under the Special 301 program and carries no tariff measures. No duty rates or HTS codes are affected.

Published August 26, 2026 Official source (opens in a new tab)
Government notice No rate change Federal Register

Automated Commercial Environment (ACE) Electronic Export Manifest for Rail Cargo

Final rule mandates electronic export manifest in ACE for rail cargo (effective 2026-10-26, enforced 2027-10-26); export manifest data elements only, HTSUS mentioned only as a cargo-description field, no duty rates touched.
CBP finalized a rule requiring electronic export manifests in ACE for rail cargo leaving the United States, effective October 26, 2026 with enforcement starting October 26, 2027. It concerns export documentation only; HTS numbers appear in it solely as an optional cargo-description field on manifests. No import duty rates are affected.

Published August 26, 2026 Official source (opens in a new tab)
Government notice No rate change Federal Register

Establishment of Four Customs-Enforcement Areas

CBP Dec. 26-17 establishes four Customs-Enforcement Areas in near-shore waters under the Anti-Smuggling Act (19 USC 1701); maritime enforcement jurisdiction only, no tariff content.
CBP established four Customs-Enforcement Areas in the near-shore waters of South Florida, Central/Southern California, Puerto Rico, and the Texas Gulf Coast, effective August 25, 2026, expanding maritime anti-smuggling enforcement authority. This changes where CBP can board and inspect vessels, not what anything costs to import. No tariff rates or HTS codes are affected.

Published August 25, 2026 Official source (opens in a new tab)
Government notice No rate change IEEPA CBP CSMS

CSMS # 69635410 - Update to ACE CATAIR Error Dictionary: New Error F883 PSC NOT ALLOWED TO MODIFY IEEPA HTS

CSMS 69635410 adds ACE validation error F883 blocking Post Summary Corrections that modify IEEPA HTS on FTZ type 06 entries; filing-procedure change only, no rate, scope, or exemption change.
CBP added a new ACE filing validation (error F883) that blocks Post Summary Corrections from modifying the IEEPA tariff line on Foreign Trade Zone type 06 entries, deployed August 21, 2026. This is a customs filing-procedure change for brokers and self-filers. No duty rates, tariff scopes, or exemptions change, so the rates returned by our API are unaffected.

Published August 24, 2026 Official source (opens in a new tab)

Government notice Affects our rates Federal Register

Quartz surface products: new Section 201 safeguard returns two rates, not one

A Section 201 safeguard took effect on 15 August 2026 for quartz surface products under HTS 6810.99.00.20, 6810.99.00.40 and 7020.00.60.00 (Proclamation 11051).

It is a tariff-rate quota, so there are two rates: 25% within the quota and 50% above it. Which one applies depends on whether the quarterly quota is still open when your entry is filed, and that is not something we can know from an HTS code and a country of origin.

So we do not guess. On these lanes `summary.total_resolved_ad_valorem_rate` is now `null`, and `rate_conditional.alternatives` carries both rates with their conditions. If your integration totals our response, it will need to read that block rather than the summary. The rates step down each year: 23%/49% from August 2027, then 21%/48%, then 19%/47%.

Most origins are exempt. The proclamation excludes 124 countries and territories, including Canada, Mexico, South Korea, Australia, Israel, Singapore, Brazil and the CAFTA-DR and Caribbean Basin parties. Those lanes are unchanged.

If you ask about an 8-digit heading that spans both covered and uncovered lines, such as 6810.99.00, we return a normal total and show the safeguard as advisory, because whether it applies depends on the 10-digit line your goods classify to.

We were late: the safeguard was in force from 15 August and our answers did not reflect it until 16 August. Lookups on these three codes in that window came back too low. If you priced shipments from them, re-run them.

Government notice No rate change CBP CSMS

CSMS # 69403181 - Harmonized System Update (HSU) 2618

as a separate action, HSU 2618 is the ACE/HTS implementation of the Section 232 patented-pharmaceuticals duties already tracked under CSMS #69395344, which we model in full (headings 9903.04.60-.69); it announces no new rate and no scope change.

Harmonized System Update 2618, created July 31, 2026, carries 174 tariff records and 591 ABI records loading the Section 232 patented-pharmaceuticals duties into ACE, effective July 31, 2026. CBP points readers to CSMS #69395344 for the substance.

This is the plumbing for an action we already model rather than a new action. Proclamation 11020 and U.S. note 40 are live in our data across headings 9903.04.60 through 9903.04.69, including the 100% default lane, the 15% lane for the EU-27, Japan, Korea, Switzerland and Liechtenstein, the United Kingdom lane, the Annex III window that runs to September 28, 2026, and the claimable generics relief under 9903.04.67.

One operational note for anyone reconciling our numbers against the published schedule. This update is what put the 9903.04.6x range into the USITC export, and the exported text for the United Kingdom heading 9903.04.63 still reads "+10%". That figure was superseded on July 31, 2026, the same day, by a Commerce notice reducing it to 0% (FR Doc. 2026-15799, announced in CBP CSMS #69415934). We serve the reduced 0% rate. Where the published schedule and a later Commerce or CBP instrument disagree, the later instrument governs, and the schedule catches up afterwards.

Government notice No rate change Federal Register

Continuation of the National Emergency With Respect to Lebanon

a National Emergencies Act 202(d) renewal of the EO 13441 Lebanon emergency, which is an IEEPA blocking-sanctions program administered by OFAC, not a duty program; the notice contains no tariff text, names no HTS code or Chapter 99 heading, and changes no rate.

On July 29, 2026 the President continued for one year the national emergency with respect to Lebanon originally declared in Executive Order 13441 of August 1, 2007. This is a routine annual renewal under section 202(d) of the National Emergencies Act.

Executive Order 13441 authorises blocking the property of persons undermining Lebanon's sovereignty or democratic institutions. It is a targeted sanctions program, not a tariff action: it names no Harmonized Tariff Schedule provisions and imposes no duties. The renewal notice adds nothing beyond extending the emergency.

No effect on any duty rate we report. Sanctions and blocking programs are outside what this API models; we resolve Column 1 and Column 2 base rates, Chapter 99 additional measures such as Section 301, Section 232 and Section 122, their exemptions, and trade-agreement special rates. Screening a counterparty against OFAC lists is a separate compliance question from the duty owed on a classified good.

Government notice No rate change CBP CSMS

CSMS # 69395228 - Quota Processing Issue in the Automated Commercial Environment (ACE)

this is a CBP operational notice about a quota-processing defect in ACE; it names no HTS codes, moves no duty rate, and changes no tariff-rate-quota threshold, and quotas are outside what we model (we resolve Column 1/2 base rates and Chapter 99 additional measures, not quota or licensing administration).

CBP has reported a defect in how the Automated Commercial Environment (ACE) processes quotas for certain Chapter 99 HTS codes, and says it is investigating and will follow up when a fix is in place. CBP did not identify the affected codes.

This does not affect any rate returned by the API. Quota and licensing administration sits outside what we model — we resolve Column 1 and Column 2 base rates and Chapter 99 additional measures (Section 301, 232, 122). No duty rate, effective date, or quota threshold in our data moves as a result of this notice, and no action is needed on your side.

We are tracking CBP's follow-up message in case the resolution carries a substantive tariff change.

Government notice No rate change Federal Register

Continuation of the National Emergency With Respect to Brazil

a National Emergencies Act 202(d) renewal of the EO 14323 Brazil emergency with no operative tariff text; the IEEPA duty authority it once carried terminated 2026-02-23 (Learning Resources v. Trump) and Brazil duties now come from Section 301 notes 50 and 52, which this notice does not touch.

On July 28, 2026 the President continued for one year the national emergency with respect to Brazil originally declared in Executive Order 14323 of July 30, 2025. This is a routine renewal under section 202(d) of the National Emergencies Act. The notice contains no tariff schedule, no Chapter 99 heading, and no change to any duty rate.

The IEEPA tariff authority that once rested on this emergency ended on February 23, 2026 after the Supreme Court's decision in Learning Resources v. Trump; continuing the emergency preserves the sanctions and blocking authorities, not duty collection. US duties on Brazilian goods today come from the Section 301 actions: +25% on all products of Brazil under heading 9903.05.01 (U.S. note 50, effective 2026-07-22) and +12.5% under the forced-labor action at 9903.05.27 (U.S. note 52, effective 2026-07-24), which stack on each other.

Rates returned by the API are unchanged. Verified against live production on 2026-07-29: 6909.19.50.95 / BR resolves to 4% base + 25% + 12.5%, and 6404.11.90 / BR to 20% base + 25% + 12.5%.

Government notice No rate change Section 301 Federal Register

Notice of Actions in Section 301 Investigations of Acts, Policies, and Practices of Various Economies Related to the Failure of Each Economy To Impose and Effectively Enforce a Prohibition on the Importation of Goods Produced With Forced Labor

this is the source already modeled: the Section 301 forced-labor duties of 10% to 12.5% across sixty economies, effective 2026-07-24, live in production.

USTR's Notice of Actions imposes additional duties of 10% to 12.5% on imports from sixty economies under headings 9903.05.20 through 9903.05.84, effective 12:01 a.m. ET on July 24, 2026, with general exemptions at 9903.05.85 through 9903.05.92 and economy-specific exemptions at 9903.06.01 through 9903.06.21.

This action is already reflected in the API, including the exemption lists. Where an economy also carries its own country-level Section 301 action, the two stack: Brazilian goods land at base plus 25% under note 50 plus 12.5% under note 52. No further change results from this notice.

Government notice No rate change Section 301 Federal Register

Actions by the United States in the Investigations Under Section 301 of the Trade Act of 1974 of the Acts, Policies, and Practices of 60 Economies Related to the Failure of Each Economy To Impose and Effectively Enforce a Prohibition on the Importation...

the Presidential determination directing the Section 301 forced-labor action already modeled; the operative duties are USTR's companion Notice of Actions, live since 2026-07-24.

This document records the Presidential actions in the Section 301 investigations of sixty economies over the failure to prohibit and enforce against imports of goods produced with forced labor. It is the directing instrument; the duties themselves come from USTR's companion Notice of Actions.

Those duties, 10% to 12.5% under headings 9903.05.20 through 9903.05.84 with effect from July 24, 2026, are already live in the API together with their exemption lists. No change results from this document.

Government notice No rate change CBP CSMS

CSMS # 69357309 - Harmonized System Update (HSU) 2617

Harmonized System Update 2617 carries the Section 301 forced-labor records already modeled plus Fish and Wildlife import flag changes.

Harmonized System Update 2617 contains 124 tariff records and 379 broker interface records. It carries the Section 301 forced-labor tariff records, effective July 24, 2026, and changes several Fish and Wildlife Service import flags from FW2 to FW1 following a final rule amending the shellfish definition.

The forced-labor duties are already live in the API under headings 9903.05.20 through 9903.05.84. Partner-government agency import flags govern which agency must review a shipment; they carry no duty and are outside what this API models. No rate changes.

Government notice No rate change Section 301 CBP CSMS

CSMS # 69326983 - GUIDANCE: Section 301 Forced Labor Import Duties

CBP filing guidance for the Section 301 forced-labor action already modeled; the 60 economies, the 10% and 12.5% rates, the 9903.05.20-.84 headings, and the 2026-07-24 effective date all match what production returns.

CBP issued filing instructions for USTR's Section 301 forced-labor action: additional duties of 10% to 12.5% on imports from sixty economies, under headings 9903.05.20 through 9903.05.84, effective for goods entered on or after 12:01 a.m. ET on July 24, 2026, with general exemptions at headings 9903.05.85 through 9903.05.92 and economy-specific exemptions at 9903.06.01 through 9903.06.21.

This action is already reflected in the API, including the exemption lists and the fact that Brazil takes this duty on top of its own country action, landing Brazilian goods at base plus 25% plus 12.5%. No change results from this guidance.

Government notice No rate change CBP CSMS

CSMS # 69324417 - Harmonized System Update (HSU) 2616

Harmonized System Update 2616 carries the Brazil Section 301 records already modeled plus one FDA import flag change.

Harmonized System Update 2616 contains 20 tariff records and 80 broker interface records. It carries the Section 301 Brazil tariff records, effective July 22, 2026, and changes one FDA import flag on subheading 2941.50.0000 from FD2 to FD1.

The Brazil Section 301 duty is already live in the API at +25% under heading 9903.05.01. Partner-government agency import flags govern which agency must review a shipment; they carry no duty and are outside what this API models. No rate changes.

Government notice No rate change Federal Register

Continuation of the National Emergency With Respect to Mali

a National Emergencies Act 202(d) renewal of the EO 13882 Mali emergency, carrying sanctions authority with no tariff text and touching no watched program.

On July 21, 2026 the President continued for one year the national emergency with respect to the situation in Mali, originally declared in Executive Order 13882 of July 26, 2019. This is a routine renewal under section 202(d) of the National Emergencies Act.

The notice contains no tariff schedule, no Chapter 99 heading, and no duty rate. The underlying emergency supports sanctions and blocking authorities, not import duties, and Mali carries no trade-remedy measure in the API. Rates are unchanged.

Government notice No rate change Federal Register

Further Strengthening Actions Taken To Adjust Imports of Aluminum Into the United States

Proclamation 11045 creates a Commerce-administered onshoring incentive granting approved companies a half-rate 232 allowance on primary aluminum; it is company and quantity specific, sets no new rate or heading, and expressly defers any HTSUS change to a later Commerce notice.

Proclamation 11045 directs the Secretary of Commerce to establish an investment incentive program under Section 232. Companies that submit an approved onshoring plan, committing to build, refurbish, or expand a U.S. primary aluminum facility with construction starting by January 20, 2029, may annually import a quantity of primary aluminum matching that facility's anticipated output at half the Section 232 rate otherwise in effect.

No published aluminum rate changes and no Chapter 99 heading is created. The benefit attaches to an approved company and a specific quantity, not to a tariff code and country of origin, so it is not something a rate API can resolve, in the same way as the existing auto-parts import adjustment offset. The proclamation directs Commerce to decide separately whether any tariff schedule changes are needed and to publish them by Federal Register notice; that future notice is the thing to watch. Aluminum rates returned today are unchanged.

Government notice No rate change Federal Register

Imposing Additional Duties To Offset Canadian Discrimination Against the Commerce of the United States With Respect to Alcoholic Beverages

Proclamation 11046 as published matches what is already modeled: Section 338, +50% on Canadian alcoholic beverages, effective 2026-08-22 under heading 9903.03.12 (start moved from 2026-08-19 by Proclamation 11056).

Proclamation 11046 imposes an additional 50% ad valorem duty under Section 338 of the Tariff Act of 1930 on the 63 Canadian subheadings listed in its Annex II, covering beer, wine, spirits and related goods, effective for goods entered on or after 12:01 a.m. ET on August 22, 2026 (moved from 2026-08-19 by Proclamation 11056, FR 2026-17294).

The published text matches what the API already carries under heading 9903.03.12, U.S. note 51(b)(1), including both exclusions: the duty does not apply to goods already subject to Section 232, nor to articles on the civil-aircraft list. The duty applies regardless of USMCA origination. Verified against live production on 2026-08-30: 2208.50.00 from Canada carries no Section 338 duty for entry dates 2026-08-19 through 2026-08-21 and carries the +50% under 9903.03.12 on and after August 22, 2026.

Government notice No rate change Federal Register

Imposing Additional Duties To Offset Canadian Discrimination Against the Commerce of the United States With Respect to Dairy

Proclamation 11047 as published matches what is already modeled: Section 338, +50% on Canadian dairy, effective 2026-08-22 under heading 9903.03.13 (start moved from 2026-08-19 by Proclamation 11056).

Proclamation 11047 imposes an additional 50% ad valorem duty under Section 338 of the Tariff Act of 1930 on the 52 Canadian dairy and related subheadings listed in its Annex II, effective for goods entered on or after 12:01 a.m. ET on August 22, 2026 (moved from 2026-08-19 by Proclamation 11056, FR 2026-17294).

The published text matches what the API already carries under heading 9903.03.13, U.S. note 51(b)(2), including both exclusions: the duty does not apply to goods already subject to Section 232, nor to articles on the civil-aircraft list. The duty applies regardless of USMCA origination. Verified against live production on 2026-08-30: the duty is absent for entry dates before August 22, 2026, including the suspended window of 2026-08-19 through 2026-08-21, and present on and after August 22, 2026.

Government notice No rate change Federal Register

Imposing Additional Duties To Offset Canadian Discrimination Against the Commerce of the United States With Respect to Motor Vehicles

Proclamation 11048 as published matches what is already modeled: Section 338, +50% on the motor-vehicle annex products of Canada, effective 2026-08-22 under heading 9903.03.14 (start moved from 2026-08-19 by Proclamation 11056).

Proclamation 11048 imposes an additional 50% ad valorem duty under Section 338 of the Tariff Act of 1930 on the Canadian products listed in its Annex II, effective for goods entered on or after 12:01 a.m. ET on August 22, 2026 (moved from 2026-08-19 by Proclamation 11056, FR 2026-17294). Despite the title, the annex reaches well beyond vehicles: 439 subheadings across chapters 4 through 97.

The published text matches what the API already carries under heading 9903.03.14, U.S. note 51(b)(3), including both exclusions: the duty does not apply to goods already subject to Section 232, nor to articles on the civil-aircraft list. The duty applies regardless of USMCA origination. Verified against live production on 2026-08-30: covered Canadian goods carry no Section 338 duty for entry dates before August 22, 2026, including the suspended window of 2026-08-19 through 2026-08-21, and carry the +50% on and after August 22, 2026.

Government notice No rate change Section 301 CBP CSMS

CSMS # 69302472 - GUIDANCE: Section 301 Duties on Certain Products from Brazil

CBP filing guidance for the Brazil Section 301 action already modeled; the rate, heading, effective date, and exemption headings all match what production returns.

CBP issued filing instructions for USTR's Section 301 action on Brazil: heading 9903.05.01, an additional 25% ad valorem on articles the product of Brazil, effective for goods entered on or after 12:01 a.m. ET on July 22, 2026, with exemptions at headings 9903.05.02 through 9903.05.09.

Everything in this guidance is already reflected in the API. One exemption is intentionally not applied automatically: heading 9903.05.02 covers goods that were already in transit before July 22 and entered before July 29, 2026. That test depends on a specific shipment's loading and entry dates, not on the tariff code and country of origin, so the API reports the full duty and leaves the in-transit claim to the filer. That window has now closed in any case.

Government notice No rate change CBP CSMS

CSMS # 69290648 - Information: Quota Bulletin 26-402 2027 Cotton Note 6

a tariff-rate quota bulletin covering opening dates and quantity allocation, which is outside the modeled scope of duty rates.

CBP published Quota Bulletin 26-404 for the 2027 cotton quota under Chapter 52 Additional U.S. Note 8. The quota period runs August 1, 2026 through July 31, 2027.

Quota bulletins set quantity limits and opening procedures. They do not change any duty rate, so nothing in the API moves. Quota quantities and fill status are outside what this API models.

Government notice No rate change CBP CSMS

CSMS # 69290703 - Information: Quota Bulletin 26-403 2027 Cotton Note 7

a tariff-rate quota bulletin covering opening dates and quantity allocation, which is outside the modeled scope of duty rates.

CBP published Quota Bulletin 26-403 for the 2027 cotton quota under Chapter 52 Additional U.S. Note 7. The quota period runs August 1, 2026 through July 31, 2027.

Quota bulletins set quantity limits and opening procedures. They do not change any duty rate, so nothing in the API moves. Quota quantities and fill status are outside what this API models.

Government notice No rate change CBP CSMS

CSMS # 69290728 - Information: Quota Bulletin 26-404 2027 Cotton Note 8

a tariff-rate quota bulletin covering opening dates and quantity allocation, which is outside the modeled scope of duty rates.

CBP published Quota Bulletin 26-402 for the 2027 cotton quota under Chapter 52 Additional U.S. Note 6 (cotton, rough or harsh). The quota period runs August 1, 2026 through July 31, 2027, opening Monday, August 3, 2026, with proration if the limit is exceeded at opening.

Quota bulletins set quantity limits and opening procedures. They do not change any duty rate, so nothing in the API moves. Quota quantities and fill status are outside what this API models.

Government notice No rate change Section 301 Federal Register

Notice of Action: Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal Deforesta...

this is the source already modeled: Brazil Section 301, heading 9903.05.01, +25% on all products of Brazil, effective 2026-07-22, live in production since 2026-07-23.

USTR's Notice of Action imposes an additional 25% ad valorem on all products of Brazil under heading 9903.05.01, U.S. note 50, effective 12:01 a.m. ET on July 22, 2026, with exemptions at headings 9903.05.02 through 9903.05.09.

This action is already reflected in the API and is the pinned source for the Brazil Section 301 regime. Verified against live production on 2026-07-29: 6909.19.50.95 / BR returns 4% base + 25%, and 6404.11.90 / BR returns 20% base + 25%, both alongside the separate forced-labor duty under note 52. The in-transit exemption at 9903.05.02 is deliberately not applied automatically, because it turns on when a specific shipment was loaded and entered rather than on the tariff code and origin.

Government notice No rate change Section 301 Federal Register

Action by the United States in the Investigation Under Section 301 of the Trade Act of 1974 of Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; I...

the Presidential memorandum directing the Brazil Section 301 action; the operative duty is USTR's Notice of Action, already live as 9903.05.01 at +25% since 2026-07-22.

The Memorandum of July 15, 2026 directs the United States Trade Representative to take action in the Section 301 investigation of Brazil's acts, policies, and practices related to digital trade and electronic payment services, tariffs, anti-corruption enforcement, intellectual property, ethanol market access, and deforestation. It is the directing instrument; it sets no rate and names no tariff heading.

The duty itself comes from USTR's companion Notice of Action (91 FR 45516), which imposes an additional 25% on all products of Brazil under heading 9903.05.01, U.S. note 50, effective 12:01 a.m. ET on July 22, 2026. That measure is already live in the API. No change results from this memorandum.