TariffsAPI

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 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 No rate change IEEPA CBP CSMS

CSMS # 69035485 - UPDATE – Consolidated Administration and Processing of Entries (CAPE) for IEEPA Refunds - Entries Flagged for Reconciliation

processing mechanics for refunding already-collected IEEPA duties; no rate change.

CBP updated the tool importers use to claim refunds of already-collected IEEPA duties (reconciliation-flagged entries). This is refund-processing workflow, not a change to any rate we serve.

Published June 23, 2026 Official source (opens in a new tab)
Government notice No rate change IEEPA CBP CSMS

CSMS # 69066837 - DEPLOYED – Consolidated Administration and Processing of Entries (CAPE) for IEEPA Refunds - Entries Flagged for Reconciliation

deployment confirmation of the IEEPA refund-processing tool; no rate change.

CBP confirmed the IEEPA refund tool (reconciliation-flagged entries) is now live in the ACE Portal. This is refund-processing workflow, not a change to any rate we serve.

Published June 29, 2026 Official source (opens in a new tab)
Government notice No rate change IEEPA CBP CSMS

CSMS # 69127837 - UPDATE – Consolidated Administration and Processing of Entries (CAPE) for IEEPA Refunds – Warehouse Entries

entry-type eligibility rules for the IEEPA refund tool; no rate change.

CBP updated which entry types (warehouse entries and withdrawals) route through the IEEPA refund tool. This is refund-processing eligibility, not a change to any rate we serve.

Published July 2, 2026 Official source (opens in a new tab)
Government notice No rate change IEEPA Federal Register

Agency Information Collection Activities; Extension; Court-Ordered Refunds Under the International Emergency Economic Powers Act Worksheet

Paperwork Reduction Act notice extending the court-ordered IEEPA refund worksheet; no rate change.

A Paperwork Reduction Act notice seeking comment on extending the worksheet importers use to claim court-ordered IEEPA refunds. This concerns paperwork burden only, not any duty rate.

Published July 8, 2026 Official source (opens in a new tab)