CSMS #68674937 · Update to ACE CATAIR Error Dictionary: F865 HTS NOT ALLOWED FOR IMPORTER

Brief takeaway: CBP is adding a new ACE entry-filing error code that will reject certain HTS numbers when they aren't eligible for the specified Importer of Record.

What changed: According to the notice, CBP has posted an updated ACE CATAIR Error Dictionary (V46) that introduces error code F865, "HTS NOT ALLOWED FOR IMPORTER." The notice states this error triggers when one or more tariff numbers transmitted in the entry (AE) is not eligible for the submitted Importer of Record. Per the notice, the update deploys to the CERT environment on May 19, 2026, and to PRODUCTION on June 02, 2026.

Who's affected: The notice does not name specific product types, HTS chapters, or countries of origin. It applies broadly to electronic entry summary (AE) transmissions in ACE where an HTS number is not eligible for the filing Importer of Record.

What to review:
- Review whether any HTS numbers on your entries may be restricted or ineligible for your Importer of Record number.
- Confirm with your broker or filer how the new F865 error may affect transmissions after the June 02, 2026 PROD deployment.
- Check that your IOR records and any eligibility requirements tied to the tariff numbers you use are current.
- Confirm technical questions with your assigned Client Representative or ESAR as directed in the notice.

This is general information, not legal advice and not a compliance determination — confirm specifics with a licensed customs broker or trade counsel.