CSMS 69100111·System update·June 30, 2026·View on csms.cbp.gov ↗

Update to ACE CATAIR Error Dictionary: New Error “F876 DUTY HTS REQUIRES NON-DUTY HTS”

Plain-English explanation

CSMS 69100111 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (system update), published on June 30, 2026. It carries the official CBP guidance brokers and importers must follow for the topic — "Update to ACE CATAIR Error Dictionary: New Error “F876 DUTY HTS REQUIRES NON-DUTY HTS”". CSMS messages are the operational layer between Commerce determinations and at-the-border collections: when Commerce publishes a new rate, scope ruling, or instruction, CBP turns it into a CSMS that ACE/ACS systems and brokers act on.

Message body

Full text as published by U.S. Customs and Border Protection

Cargo Systems Messaging Service CSMS # 69100111 - Update to ACE CATAIR Error Dictionary: New Error “F876 DUTY HTS REQUIRES NON-DUTY HTS” Please be advised that a n updated version of the ACE CATAIR Error Dictionary V 4 9 has been posted under the Supporting Documents: Documentation for Entry Summary Chapters section CBP.gov . This update create s a new Fatal validation to prevent a dutiable Auto Part HTS and a dutiable Medium and Heavy-Duty Vehicles (MHDV) HTS number from being on the same Entry Summary line . The update includes the following error : F 876 : 876 DUTY HTS REQUIRES NON-DUTY HTS When an Entry Summary line contains a common Auto Part HTS number and a MHDV HTS number, only one or the other may be a dutiable CH99 HTS (i.e., if the Auto Part HTS number is dutiable, then the MHDV CH99 HTS number must be non-dutiable and vice-versa). Note , however , it is permissible for the Auto Part HTS number and the MHDV HTS number to both be non-dutiable CH99 HTS numbers. This update w as deploy ed to the CERTIFICATION environment and the PRODUCTION environment on June 25 , 2026 For any technical questions regarding this update, please contact your assigned Client Representative. Questions or concerns should be directed to Entry Summary Accounts & Revenue Division (ESAR) at esar@cbp.dhs.gov .

Frequently asked questions

What is CSMS 69100111?

CSMS 69100111 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Update to ACE CATAIR Error Dictionary: New Error “F876 DUTY HTS REQUIRES NON-DUTY HTS”". CSMS bulletins are the operational instructions CBP issues to brokers, importers, and ACE filers covering rate changes, system updates, scope guidance, and other day-to-day customs-operations changes.

When was CSMS 69100111 published?

CBP published CSMS 69100111 on June 30, 2026. The bulletin's instructions are typically operative as of the publication date unless the body specifies a different effective date.

Is the CBP CSMS the legally binding instruction?

Yes — for at-the-border filing and entry collection. CSMS messages translate Commerce's Federal Register determinations into operational CBP instructions that ACE/ACS systems and brokers execute. The Federal Register notice is the underlying legal authority; the CSMS is the operational implementation. Both should be read together when reconciling a rate or scope change.

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