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 CBP CSMS

CSMS # 69324417 - Harmonized System Update (HSU) 2616

Harmonized System Update 2616 carries the Brazil Section 301 records already in our data 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 in our data: 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 in our data: 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 in our data: 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.

Data change USITC

Russia aluminum Section 232 duty (200%) now resolved

Aluminum articles that are the product of Russia (HTS 9903.85.67, and derivative aluminum under 9903.85.68) now resolve with the 200% Section 232 duty under U.S. note 19 (Proclamation 10522). These Russia-specific headings supersede the generic 50% metals rate, so Russian-origin aluminum resolves at base + 200%, not base + 50%.

API change

Default pricing date is now US Eastern

When you call /resolve without an as_of, we now price for the current date in US Eastern time, matching how federal tariff actions state their effective times (12:01 a.m. eastern). Same-day changes, like a Section 122 sunset, now flip at midnight ET rather than midnight UTC. To price a specific shipment, pass as_of set to the entry date; note that a fixed past date always returns that day historical rates and will not reflect newer tariffs or sunsets.

Data change Federal Register

Section 301 tariff on products of Brazil (25%)

USTR imposed an additional 25% Section 301 duty on products of Brazil under HTS 9903.05.01 (U.S. note 50), effective 12:01 a.m. ET on July 22, 2026. Brazil-origin goods now resolve with the 25% stacked on the base rate (and Section 122 through its July 23 sunset). The note-50 exemptions are carved out, so in-transit goods, goods already covered by Section 232, civil aircraft, and pharmaceutical inputs are not over-charged.

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 in our data; 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 duty rates we cover.

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 duty rates we cover.

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 duty rates we cover.

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 reflected in our data: 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.

Government notice No rate change Section 232 CBP CSMS

CSMS # 69271650 - New Validation for Import Adjustment Offset for Section 232 Duties for Automobile and Medium and Heavy-Duty Vehicle Parts to Deploy July 18, 2026 – ACE CATAIR Error Dictionary Updated

an ACE entry-summary validation and CATAIR error-code update for the Section 232 auto-parts import adjustment offset; no rate, no Chapter 99 heading, and the offset is granted per importer license rather than resolvable from HTS and origin.

On July 18, 2026 CBP deployed a new validation in the Automated Commercial Environment for the Section 232 import adjustment offset on automobile and medium and heavy-duty vehicle parts, and posted an updated CATAIR Error Dictionary (V51) with new error codes covering the auto-part credit.

This is an entry-filing control. It checks that an importer's Automobile License declaration carries a sufficient balance and that duty is not also claimed on the corresponding Chapter 99 line. The offset itself is allocated per importer license, not per HTS code and country of origin, so it changes no published duty rate and is not something a rate API can resolve. Rates returned for automobile and vehicle-part codes are unchanged.

Data change

UK auto parts now resolve at the 10% Section 232 cap (9903.94.32)

United Kingdom-origin automobile parts enumerated in HTSUS Chapter 99 U.S. note 33(j) now resolve to the UK 10% all-in tariff cap under heading 9903.94.32 (US-UK Economic Prosperity Deal, effective June 30, 2025; CBP CSMS #65475725; 90 FR 27851), replacing the global 25% auto-parts rate (9903.94.05) for these codes. Previously these UK parts were returned at the global 25% rate, overstating the total duty by up to 17.5 percentage points (e.g. 8708.10.30.20 GB: 27.5% before, 10% now). The cap covers the 267 subheadings enumerated in subdivision (j), including the 8708 parts series, specific 8706/8707 chassis and body codes, tires (4011), and motor-vehicle seats (9401.20). Codes outside the UK list, such as 8706.00.03, correctly remain at the global rate. The certification-based heading 9903.94.33 (note 33(q)) is not covered. Rates for all other origins are unchanged.

Government notice No rate change Federal Register

Continuation of the National Emergency With Respect to Hostage-Taking and the Wrongful Detention of United States Nationals Abroad

renewal of a national-emergency declaration; imposes no tariff or duty change.

The President renewed the national emergency on hostage-taking and wrongful detention of U.S. nationals. This is a foreign-policy authority renewal with no tariff or duty-rate effect, so no rates in our data change.

Government notice No rate change Federal Register

Continuation of the National Emergency With Respect to Significant Transnational Criminal Organizations

renewal of a national-emergency declaration; imposes no tariff or duty change.

The President renewed the national emergency on significant transnational criminal organizations. This is a foreign-policy authority renewal with no tariff or duty-rate effect, so no rates in our data change.

Government notice No rate change Section 232 CBP CSMS

CSMS # 69252300 - GUIDANCE: Section 232 Copper Smelt and Cast Reporting Requirements

new ACE country-of-smelt/cast reporting fields for copper under Proclamation 11021; introduces no new duty rate or Chapter 99 measure.

CBP added new entry-reporting fields (country of smelt, country of cast) for certain copper classifications, effective July 30, 2026. This is a data-collection and filing requirement, not a rate change; the Section 232 copper duties themselves are unchanged.

Government notice No rate change CBP CSMS

CSMS # 69247555 - Notice from the U.S. Fish and Wildlife Service regarding Final Rule Amending 50 CFR Part 10 Shellfish Definition and Updated Tariff Flagging

Fish & Wildlife final rule updates a regulatory definition and tariff flagging for shellfish; no duty-rate change.

A U.S. Fish & Wildlife final rule updated the shellfish definition and related tariff flagging. No duty rates change.

Government notice No rate change Federal Register

Adjusting Imports of Commercial Aircraft, Jet Engines, and Aircraft and Engine Parts Into the United States

Proclamation 11040 makes a Section 232 finding on commercial aircraft/engines/parts and directs negotiations and monitoring; it imposes no rate, names no HTS, and sets no effective date.

Proclamation 11040 makes a Section 232 national-security finding on commercial aircraft, jet engines, and parts, and directs trade negotiations. It imposes no new duty and names no HTS codes, so no rates change today. We will flag it if a follow-on action sets rates.

Government notice No rate change CBP CSMS

CSMS # 69239974 - Harmonized System Update (HSU) 2615

Harmonized System Update; HTS code changes are ingested automatically by the USITC scrape, no manual data change.

CBP deployed Harmonized System Update 2615. HTS code additions and edits from these updates are picked up automatically by our data pipeline.

Data change

88 word-only rate texts re-read as structured references

Ninety headings express their duty entirely in words, with no number anywhere in the rate
text. Our internal check for unread rates required the text to contain a digit, so these
were never counted and never fixed. That filter has been removed.

Eighty-eight of the ninety now resolve to a structured reference recording which heading,
subheading, note or related article the duty defers to. No rate was invented, and nothing
is followed on your behalf.

Across the schedule, 243 duty rows now carry structured components, constraints or a
reference target. Four remain unread, and say so.

API change

Headings that state their rate in words now return a pointer

Some headings never state a number. They tell you to look somewhere else:

* `8206.00.00.00` (tool sets) — "the rate of duty applicable to that article in the set
subject to the highest rate of duty"
* `6103.22.00` (ensembles) — "the rate applicable to each garment in the ensemble if
separately entered"
* `9110.11.00.00` (watch movements) — "the rate applicable to the complete, assembled
movement"
* `9005.90.40.00` (optical parts) — "the rate applicable to the article of which it is a
part or accessory"

These used to come back as `rate_type: "unparsed"`, with the sentence in `raw_rate` and
nothing a program could act on. They are now `rate_type: "reference"` and carry
`base_tariff.refers_to`, alongside a `BASE_RATE_REFERENCE` warning,
`summary.base_rate_known: false` and a confidence of 0.5.

Eight pointer kinds are now recognised:

* `set_highest` — the highest-rated article in the set
* `ensemble_component` — each garment, rated as if entered separately
* `parent_article` — the article of which this is a part or accessory
* `assembled_movement` — the complete, assembled movement
* `absence_of_heading` and `absence_of_subheading` — the rate that would apply without it
* `heading` — a named heading, for example `{"targets": ["2009"]}`
* `note` — a named U.S. note, for example `{"note": "U.S. note 3", "basis": "repair_value"}`
* `self_subheading` — this subheading's own rate, optionally with `delta_percentage`,
`plus_percentage`, or `originating_in` for a trade-agreement rate

We record the pointer. We do not follow it. Resolving "heading 2009" on your behalf would
mean choosing one of its children for you, which is a classification decision, not a rate
lookup.

88 duty rows moved from unparsed to reference. Four rows remain unparsed across the whole
schedule: the drawback clauses of `9801.00.70` and `9801.00.80`, which genuinely state no
rate.