Cargo Systems Messaging Service

Welcome to U.S. Customs and Border Protection’s (CBP’s) Cargo Systems Messaging Service (CSMS). CSMS is one of CBP’s methods for communicating to our trade partners news and updates on our automated systems – namely the Automated Commercial Environment (ACE). To receive the CSMS messages via email, please register below.

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U.S. Customs and Border Protection updates (100 bulletins)

CSMS # 64410085 - Update to Automated Export System (AES) Appendix F - Other Partnership Agency License Type Code – OPA validation

• 03/13/2025 04:30 PM EDT

CSMS # 64409769 - ACE Production Standard Invasive Maintenance from 10:00 p.m. ET Saturday, March 15, 2025, to 4:00 a.m. ET Sunday, March 16, 2025

• 03/13/2025 04:15 PM EDT

CSMS # 64405973 - Correction: NCSD April 2025 Webinars

• 03/13/2025 12:02 PM EDT

CSMS # 64404180 - Deployment Reminder (and CERT Update) for Changes Related to FDA ACE Supplemental Guide 2.5.12

• 03/13/2025 09:55 AM EDT

CSMS # 64397405 - Addressed - Delayed Outbound Notifications for ACE In-Bond

• 03/12/2025 04:09 PM EDT

CSMS # 64397102 - Harmonized System Update (HSU) 2510 and 2511

• 03/12/2025 04:01 PM EDT

CSMS # 64396969 - Updates to Entry Summary Bond Validations to deploy March 12, 2025

• 03/12/2025 03:42 PM EDT

CSMS # 64396596 - Delayed Outbound Notifications for ACE In-Bond

• 03/12/2025 03:12 PM EDT

CSMS # 64395586 - RESOLVED: Error 775 - TRFF ADJSTMNT HTS NOT ALLOWED on Certain Section 232 Entry Summaries

• 03/12/2025 02:16 PM EDT

CSMS # 64394613 - Error 775 - TRFF ADJSTMNT HTS NOT ALLOWED on Certain Section 232 Entry Summaries

• 03/12/2025 12:59 PM EDT

CSMS # 64393496 - REMINDER & WEBINAR: Public Comment Period of USMCA Interim Final Rule (IFR) - Implementing Regulations Related to Textiles and Apparel, Automotive Goods, Drawback Duty-Deferral, and other Provisions - Closes March 18, 2025

• 03/12/2025 11:39 AM EDT

CSMS # 64384496 - UPDATED GUIDANCE: Import Duties on Imports of Aluminum and Aluminum Derivative Products

• 03/11/2025 09:24 PM EDT

CSMS # 64384423 - UPDATED GUIDANCE: Import Duties on Imports of Steel and Steel Derivative Products

• 03/11/2025 09:05 PM EDT

CSMS # 64379480 - NCSD April 2025 Webinars

• 03/11/2025 01:25 PM EDT

CSMS # 64377272 - ACE Certification Standard Invasive Maintenance Window on March 12, 2025, from 5:00 pm to 8:00 pm ET

• 03/11/2025 10:57 AM EDT

CSMS # 64375535 - Quota Guidance: Proclamation 10896 of February 10, 2025, Adjusting Imports of Steel and Aluminum into the United States

• 03/11/2025 08:21 AM EDT

CSMS # 64366569 - ACE Entry Summary Error Dictionary Updates for Blanket Reconciliation and Bond Validation

• 03/10/2025 12:28 PM EDT

CSMS # 64366327 - ACE Entry Summary Create/Update CATAIR Updated with Aluminum Smelt and Cast and Steel Melt and Pour Changes

• 03/10/2025 12:04 PM EDT

CSMS # 64366037 - ACE Reports Value Issue in Automated Export System Universe

• 03/10/2025 11:52 AM EDT

CSMS # 64348288 - GUIDANCE: Import Duties on Imports of Aluminum and Aluminum Derivative Products

• 03/07/2025 06:28 PM EST

CSMS # 64348411 - GUIDANCE: Import Duties on Imports of Steel and Steel Derivative Products

• 03/07/2025 06:23 PM EST

CSMS # 64347680 - UPDATE: Harmonized System Update (HSU) 2509

• 03/07/2025 05:06 PM EST

CSMS # 64342145 - Harmonized System Update (HSU) 2509

• 03/07/2025 10:59 AM EST

CSMS # 64335789 - GUIDANCE – Update on Additional Duties on Imports from Mexico - USMCA Qualifying Products and Potash

• 03/06/2025 07:34 PM EST

CSMS # 64336037 - GUIDANCE – Update on Additional Duties on Imports from Canada – USMCA Qualifying Products and Potash

• 03/06/2025 07:32 PM EST

CSMS # 64333237 - ACE Production Standard Invasive Maintenance from 10:00 p.m. ET Saturday, March 8, 2025, to 4:00 a.m. ET Sunday, March 9, 2025

• 03/06/2025 03:10 PM EST

CSMS # 64330423 - Initiation of Antidumping Duty Investigations: Methylene Diphenyl Dissocyanate from the People’s Republic of China

• 03/06/2025 12:04 PM EST

CSMS # 64328569 - IMPORTANT: ACE Portal Access Unavailable for Some User Accounts

• 03/06/2025 10:10 AM EST

CSMS # 64321322 - Update to Automated Export System (AES) Response Message 15A

• 03/05/2025 04:17 PM EST

CSMS # 64318036 - FDA Entry Processing Delay

• 03/05/2025 12:10 PM EST

CSMS # 64317842 - Harmonized System Update (HSU) 2508

• 03/05/2025 12:05 PM EST

CSMS # 64309714 - ACE Certification Standard Invasive Maintenance Window on Wednesday, March 05, 2025

• 03/04/2025 05:09 PM EST

CSMS # 64306990 - Agriculture Marketing Service (AMS) Publishes Updated CATAIR/Implementation Guide

• 03/04/2025 01:54 PM EST

CSMS # 64299816 - UPDATE – Additional Duties on Imports from China and Hong Kong

• 03/03/2025 10:34 PM EST

CSMS # 64297292 - GUIDANCE: Additional Duties on Imports from Mexico

• 03/03/2025 05:09 PM EST

CSMS # 64297449 - GUIDANCE: Additional Duties on Imports from Canada

• 03/03/2025 05:08 PM EST

CSMS # 64273375 - Harmonized System Update (HSU) 2507

• 02/28/2025 04:38 PM EST

CSMS # 64270075 - 5106 Requests for CBP Assigned Numbers - ACE System Failure

• 02/28/2025 12:56 PM EST

CSMS # 64261282 - Resolved - Network Issue Impacting ACE Truck TMM Application

• 02/27/2025 05:22 PM EST

CSMS # 64259188 - Network Issue Impacting ACE Truck TMM Application

• 02/27/2025 03:05 PM EST

CSMS # 64258633 - ACE Production Standard Invasive Maintenance from 10:00 p.m. ET Saturday, March 1, 2025, to 4:00 a.m. ET Sunday, March 2, 2025

• 02/27/2025 02:24 PM EST

CSMS # 64255764 - REMINDER: ACE Portal Access Management Post-deployment Support Call Today at 2:00 p.m. ET

• 02/27/2025 11:27 AM EST

CSMS # 64248000 - Reminder: Upcoming deployment for the Environmental Protection Agency (EPA) Hydrofluorocarbon (HFC) Program

• 02/26/2025 05:03 PM EST

CSMS # 64247256 - CORRECTION: Notice of updated Drawback Error Dictionary for F505 and F506 error messages and CERT testing.

• 02/26/2025 03:53 PM EST

CSMS # 64246781 - UPDATE: ACE Production Standard Invasive Maintenance 5:00 a.m. to 7:00 a.m. Thursday, February 27, 2025

• 02/26/2025 03:28 PM EST

CSMS # 64244364 - CBP recommends adding a “Cybersecurity Point of Contact” to your ACE portal account

• 02/26/2025 12:52 PM EST

CSMS # 64235342 - Updated Guidance – Additional Duties on Imports from China and Hong Kong

• 02/25/2025 05:07 PM EST

CSMS # 64232229 - ACE Certification Standard Invasive Maintenance Window on Wednesday February 26, 2025, from 5:00 pm to 8:00 pm ET

• 02/25/2025 01:19 PM EST

CSMS # 64232214 - Reminder: Upcoming deployment for U.S. Food and Drug Administration (FDA) ACE changes specified in FDA ACE Supplemental Guide 2.5.12

• 02/25/2025 01:16 PM EST

CSMS # 64231666 - Update to the Automated Export System Commodity Filing Response Messages – Appendix A – Response Code 26C

• 02/25/2025 12:44 PM EST

CSMS # 64218147 - UPDATE: ACE Production Extended Invasive Maintenance Changed to Thursday, February 27, 2025

• 02/24/2025 11:42 AM EST

CSMS # 64218064 - Initiation of Antidumping and Countervailing Duty Investigations: Temporary Steel Fencing from the People’s Republic of China (China)

• 02/24/2025 11:33 AM EST

CSMS # 64217199 - National Commodity Specialist Division (NCSD) March 2025 Webinars

• 02/24/2025 10:27 AM EST

CSMS # 64216062 - ACE Production Extended Invasive Maintenance Tuesday, February 25, 2025

• 02/24/2025 09:23 AM EST

CSMS # 64196888 - Notice of Update to the Drawback Error Dictionary for New Validation FD07

• 02/21/2025 03:59 PM EST

CSMS # 64194490 - REMINDER: ACE Portal Modernization: Legacy ACE Platform Retires February 22

• 02/21/2025 01:13 PM EST

CSMS # 64193234 - ACE Reports – Repointing Export Reports to Automated Export System (AES)

• 02/21/2025 12:04 PM EST

CSMS # 64184012 - ACE Production Standard Invasive Maintenance from 10:00 p.m. ET Saturday, February 22, 2025, to 4:00 a.m. ET Sunday, February 23, 2025

• 02/20/2025 03:55 PM EST

CSMS # 64177862 - RESOLVED: ACE Reports – Statements Universe Issues

• 02/20/2025 08:58 AM EST

CSMS # 64171229 - ACE Production Invasive Maintenance 5:00 a.m. to 7:00 a.m. ET on Thursday, February 20, 2025

• 02/19/2025 04:08 PM EST

CSMS # 64170756 - ACE Reports – Statements Universe Issues

• 02/19/2025 04:01 PM EST

CSMS # 64170845 - Certification (CERT) Deployment of Sanctions

• 02/19/2025 03:47 PM EST

CSMS # 64166463 - Procedures to Follow During CBP One™ Mobile Application Interruptions

• 02/19/2025 11:09 AM EST

CSMS # 64164917 - ACE Certification Standard Invasive Maintenance Window: Today, February 19, 2025

• 02/19/2025 08:54 AM EST

CSMS # 64155931 - Food and Drug Administration (FDA) Entry Processing Delay

• 02/18/2025 02:08 PM EST

CSMS # 64152482 - ACE Portal Modernization: Legacy ACE Platform Retires February 22

• 02/18/2025 12:00 PM EST

CSMS # 64152913 - Invalid EDI Response Messages sent for Truck Manifest today February 18,2025 from 5:20 am EST to 9:50 am EST

• 02/18/2025 11:04 AM EST

CSMS # 64151118 - New Secondary Protest Issue Type: CAATSA Exception Review

• 02/18/2025 08:48 AM EST

CSMS # 64121741 - ACE Production Standard Invasive Maintenance February 15-16, 2025

• 02/14/2025 03:15 PM EST

CSMS # 64116253 - CATAIR Entry Summary Create/Update V102 Update: Cargo Sanctions

• 02/14/2025 08:28 AM EST

CSMS # 64106450 - Updated Draft GBI Enrollment Create-Update and GBI Enrollment GO Status Notification documents have been posted on cbp.gov.

• 02/13/2025 12:58 PM EST

CSMS # 64095933 - ACE Production Invasive Maintenance Manifest EDI outage (All MOT) only from 5:00 a.m. ET Wednesday, February 12, 2025, to 7:00 a.m. ET Wednesday, February 12, 2025

• 02/12/2025 04:48 PM EST

CSMS # 64090451 - FDA Updates Document Related to Electronic Nicotine Delivery System (ENDS) Products for Importers and Brokers - Updated contacts for HTS codes and NEW format

• 02/12/2025 10:06 AM EST

CSMS # 64082249 - UPDATED GUIDANCE: Updated FRN Published for Executive Order Issued February 1, 2025, as Amended February 5, 2025

• 02/11/2025 03:36 PM EST

CSMS # 64082015 - ACE Certification Extended Invasive Maintenance Window on Wednesday February 12, 2025, from 5:00 p.m. to 9:00 p.m. ET

• 02/11/2025 03:01 PM EST

CSMS # 64080803 - Customs Broker License Exam (CBLE) Spring 2025 - eCBP Registration System Maintenance

• 02/11/2025 01:55 PM EST

CSMS # 64069488 - REMINDER: ACE Multi-Modal Manifest Air Environment “Transfer to Exam” Enhancement Set to Deploy on February 15

• 02/11/2025 10:02 AM EST

CSMS # 64068649 - RESOLVED: Liquidation Courtesy Notices for February 9, 2025

• 02/10/2025 03:23 PM EST

CSMS # 64067950 - Update to the Automated Export System Trade Interface Requirements – Appendix U – HTS/Schedule B Classifications Requiring Used Vehicle Reporting

• 02/10/2025 02:39 PM EST

CSMS # 64065645 - Delay of Liquidation Courtesy Notices for February 9, 2025

• 02/10/2025 11:42 AM EST

CSMS # 64065330 - Updated date for Production deployment for the Environmental Protection Agency (EPA) Hydrofluorocarbon (HFC) Program

• 02/10/2025 11:25 AM EST

CSMS # 64064281 - Update to the Automated Export System Trade Interface Requirements – Appendix V – HTS Numbers that Cannot be Reported in AES

• 02/10/2025 10:26 AM EST

CSMS # 64063659 - Updated Dates for ACE Production Deployment of Changes in FDA ACE Supplemental Guide 2.5.12

• 02/10/2025 09:32 AM EST

CSMS # 64045612 - UPDATED GUIDANCE: ACE Processing of De Minimis Shipments Per Executive Orders issued February 1, 2025, as Amended February 5, 2025

• 02/07/2025 06:00 PM EST

CSMS # 64044439 - Harmonized System Update (HSU) 2505 and 2506

• 02/07/2025 04:45 PM EST

CSMS # 64028813 - Update Electronic Export Manifest Implementation Guides Appendix P – Pilot Participants Carriers Submitting Electronically

• 02/06/2025 02:27 PM EST

CSMS # 64027054 - ACE Production Standard Invasive Maintenance from 10:00 p.m. ET Saturday, February 8, 2025, to 4:00 a.m. ET Sunday, February 9, 2025

• 02/06/2025 12:37 PM EST

CSMS # 64018403 - Updated - Entry Summary Order of Reporting For Multiple Harmonized Tariff System (HTS) in ACE

• 02/05/2025 07:08 PM EST

CSMS # 64016714 - Completed-Deployment to correct Flight Arrival Issue starting at 4:00pm EST today, February 5, 2025

• 02/05/2025 04:42 PM EST

CSMS # 64016312 - Deployment to correct Flight Arrival Issue starting at 4:00pm EST today, February 5, 2025

• 02/05/2025 04:05 PM EST

CSMS # 64014308 - Updated ACE Entry Summary Create/Update CATAIR Document Now Available: Update to 54-Record, Type 08 (Steel Melt and Pour Country Detail)

• 02/05/2025 01:59 PM EST

CSMS # 64003464 - GUIDANCE: Annual Quota Opening February 7, 2025: Crystalline Silicon Photovoltaic (CSPV) Solar Cells

• 02/04/2025 04:26 PM EST

CSMS # 63992482 - GUIDANCE: ACE Processing of De Minimis Shipments Per Executive Orders issued February 1, 2025

• 02/03/2025 07:25 PM EST

CSMS # 63991812 - ACE Production Invasive Maintenance 12:00 a.m. to 1:30 a.m. ET on Tuesday, February 4, 2025

• 02/03/2025 06:16 PM EST

CSMS # 63991510 - GUIDANCE: Pause on Application of Additional Duties on Imports from Canada

• 02/03/2025 05:50 PM EST

CSMS # 63988468 - GUIDANCE: Additional Duties on Imports from China

• 02/03/2025 02:25 PM EST

CSMS # 63988467 - GUIDANCE: Additional Duties on Imports from Canada

• 02/03/2025 02:22 PM EST

CSMS # 63964114 - ACE Portal Modernization: ACE Portal User Access Management Functionality Deploying February 22

• 01/31/2025 04:33 PM EST

CSMS # 63959682 - ACE Production Standard Invasive Maintenance from 10:00 p.m. ET Saturday, February 1, 2025, to 4:00 a.m. ET Sunday, February 2, 2025

• 01/31/2025 11:44 AM EST

CSMS # 63952773 - Addressed - Truck Inbonds with On File Status instead of Enroute Status

• 01/30/2025 06:50 PM EST

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These documents may qualify as a “guidance document” as set forth in Executive Order 13891 and interpretations thereof; such guidance documents are not binding and lack the force and effect of law, except as authorized by law or as incorporated into a contract. These documents are being posted to this portal to provide stakeholders with useful information.

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