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

24 August 2026

In plain English

CBP updated the ACE CATAIR Error Dictionary with new error F883, blocking Post Summary Corrections that modify the IEEPA HTS on FTZ entry type 06, effective August 21, 2026.

Read the official notice
Topic
Tariffs and duties
Regulator
CBP
Published
24 August 2026
For
Imports and Exports
Where it applies
United States
Source
CBP CSMS

From the notice

Please be advised that an updated version of the ACE CATAIR Error Dictionary V52 has been posted under the Supporting Documents: Documentation for Entry Summary Chapters section on CBP.gov . This update adds a new validation that prevents filers from submitting a Post Summary Correction (PSC) for a Foreign Trade Zone (FTZ) entry type 06 if the International Emergency Economic Powers Act (IEEPA) HTS is modified in any way. The update includes the following error: F883: PSC NOT ALLOWED TO MODIFY IEEPA HTS This update was deployed to both the CERTIFICATION (CERT) and PRODUCTION (PROD) environments on August 21, 2026. For any technical questions regarding
The full text is at the source

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