CSMS 69298180·System update·July 21, 2026·View on csms.cbp.gov ↗

Additional Implementation Guides posted for Entry Type 13 Test in ACE for U.S. Mail Processing (INT-057) and Mail Entry Type 13 Test (CBP-290)

Plain-English explanation

CSMS 69298180 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (system update), published on July 21, 2026. It carries the official CBP guidance brokers and importers must follow for the topic — "Additional Implementation Guides posted for Entry Type 13 Test in ACE for U.S. Mail Processing (INT-057) and Mail Entry Type 13 Test (CBP-290)". 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 # 69298180 - Additional Implementation Guides posted for Entry Type 13 Test in ACE for U.S. Mail Processing (INT-057) and Mail Entry Type 13 Test (CBP-290) On July 2 0 , 2026, CBP issued CSMS 69289734 announcing the implementation of the Entry Type 13 (ET13) test through enhancements to ACE, the Automated Commercial Environment ( Implementation of Entry Type 13 Test in ACE for U.S. Mail Processing , INT-057 , and Mail Entry Type 13 Test , CBP-290) . In addition to the updated ACE implementation guides listed in CSMS 69289734 , CBP has now published updates to the following in support of this effort: Draft : ACE CATAIR Entry Summary Query Draft: ACE CATAIR Error Dictionary : Entry Summary Any future updates will be announced via CSMS. For questions about this deployment, contact the Cargo Release, Manifest and Export Product Division at CREM@cbp.dhs.gov or the Entry Summary, Accounts, and Revenue Division at ESAR@cbp.dhs.gov .   For technical questions, contact your assigned Client Representative.

Frequently asked questions

What is CSMS 69298180?

CSMS 69298180 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Additional Implementation Guides posted for Entry Type 13 Test in ACE for U.S. Mail Processing (INT-057) and Mail Entry Type 13 Test (CBP-290)". 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 69298180 published?

CBP published CSMS 69298180 on July 21, 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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