CSMS Weekly Digest: Aug 29 - Sep 4, 2026
Here's your weekly summary of 11 CSMS messages from U.S. Customs and Border Protection.
Action Required(5)
The week's most pressing items center on new Section 232 duties on unmanned aircraft systems (UAS) and components, a harmonized system update (HSU 2621), and a copper smelt-and-cast error code change — all requiring immediate review of affected entries and classification practices. Additionally, the ASF A44 error has been resolved and Quota Bulletin 26-230 establishes Tranche 1 for the affordable beef TRQ.
Section 232 Duties on Imports of Unmanned Aircraft Systems and Unmanned Aircraft Systems Components
The purpose of this message is to provide guidance on the implementation of the Presidential Proclamation 11055, August 13, 2026, “Adjusting Imports of Unmanned Aircraft Systems and Unmanned Aircraft ...
Harmonized System Update (HSU) 2621
Harmonized System Update (HSU) 2621 was created on August 22, 2026, and contains 13 harmonized tariff records and 54 ABI records. HSU 2621 contains the Section 338 updates. For more information, plea...
Copper Additional Smelt and Cast Country Detail Error Code Update
Effective Monday, September 14, 2026, ACE will begin rejecting entry summaries where the copper primary country of smelt and the country of cast are not reported. ACE will return the F794 ADDTNL DEC T...
Resolved - Recent Error ASF A44
CBP is aware of error ASF A44 recently generated on ACH Payment Authorizations. This issue has been resolved. Please resubmit the authorizations.
Quota Bulletin 26-230 Further Ensuring Affordable Beef Tranche 1
Quota Bulletin 26-230 Further Ensuring Affordable Beef Tranche 1 has been published on our webpage at the following link. Quota Bulletin 26-230 2026 Further Ensuring Affordable Beef for the American ...
Tariff(3)
Section 232 duties are now in effect for UAS and UAS components, making it critical to verify HTS classifications and duty applicability on all affected shipments. HSU 2621 and the copper smelt-and-cast error code update may also require adjustments to filing procedures and ACE system configurations.
Section 232 Duties on Imports of Unmanned Aircraft Systems and Unmanned Aircraft Systems Components
The purpose of this message is to provide guidance on the implementation of the Presidential Proclamation 11055, August 13, 2026, “Adjusting Imports of Unmanned Aircraft Systems and Unmanned Aircraft ...
Harmonized System Update (HSU) 2621
Harmonized System Update (HSU) 2621 was created on August 22, 2026, and contains 13 harmonized tariff records and 54 ABI records. HSU 2621 contains the Section 338 updates. For more information, plea...
Copper Additional Smelt and Cast Country Detail Error Code Update
Effective Monday, September 14, 2026, ACE will begin rejecting entry summaries where the copper primary country of smelt and the country of cast are not reported. ACE will return the F794 ADDTNL DEC T...
Quota(1)
Quota Bulletin 26-230 opens Tranche 1 under the 'Further Ensuring Affordable Beef' initiative — brokers should review applicable HTS numbers, quantities, and opening dates to ensure clients are positioned to file accurately when the tranche becomes available.
System Update(4)
Several ACE updates are in play this week, including a rescheduled pre-deployment call for the Entry Type 13 mail processing test, an updated ACE deployment schedule, new cargo release condition code documentation on CBP.gov, and revised ISO country codes in AESTIR Appendix C. Brokers and IT teams should review the updated deployment schedule and country code changes for any downstream filing impacts.
Cargo Release Condition Codes Documents has been Posted to cbp.gov
The Cargo Release Condition Codes documents have been posted to cbp.gov with the following changes pertaining to Entry Type 13. These changes are expected to be deployed to U.S. Customs and Border Pro...
Updated ACE Development and Deployment Schedule Posted to CBP.gov/ACE
An updated Automated Commercial Environment (ACE) Development and Deployment Schedule [ https://www.cbp.gov/document/guidance/ace-development-and-deployment-schedule ] is now available on CBP.gov. Ple...
Rescheduled Pre-Deployment Support Call for Implementation of Entry Type 13 Test in ACE for U.S. Mail Processing (INT-057) and Mail Entry Type 13 Test (CBP-290)
U.S. Customs and Border Protection has rescheduled the Pre-Deployment Support Call covering the upcoming enhancements to the Automated Commercial Environment (ACE) that will implement the new Entry Ty...
Update to AESTIR Appendix C – ISO Country Codes
The Government of Nauru passed a constitutional amendment to change the name of the Republic of Nauru to the “Republic of Naoero”. *Automated Export System Trade Interface Requirements (AESTIR)* will...
System Maintenance(1)
The recent ASF A44 error has been resolved — brokers who encountered affected entries should confirm that previously rejected filings are now processing correctly and resubmit as needed.
General Notice(2)
NCSD has posted its September 2026 webinar schedule, offering classification and compliance training opportunities worth registering for early. CBP's ACE User Satisfaction Survey is still open — a quick opportunity to provide feedback that may influence future system improvements.
National Commodity Specialist Division (NCSD) September 2026 Webinars
The National Commodity Specialist Division (NCSD), Office of Trade, is excited to present the next round of approximately 30 commodity-specific, educational webinars to support our internal and extern...
Still Time to Weigh in on ACE – Take the User Satisfaction Survey
Survey Attention all ACE users - the 2026 ACE User Satisfaction Survey is now open, and CBP wants to hear from you! Fill out the satisfaction survey and let your voice be heard! U.S. Customs and Bor...