CSMS 59151157·Operational·January 23, 2024·View on csms.cbp.gov ↗

REMINDER ACE Account and Subaccount Merge Request Letter Email Procedure; Do Not Mail or Courier Account Merge Letters

Plain-English explanation

CSMS 59151157 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (operational), published on January 23, 2024. It carries the official CBP guidance brokers and importers must follow for the topic — "**REMINDER** ACE Account and Subaccount Merge Request Letter Email Procedure; Do Not Mail or Courier Account Merge Letters". 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

CSMS # 59151157 - **REMINDER** ACE Account and Subaccount Merge Request Letter Email Procedure; Do Not Mail or Courier Account Merge Letters U.S. Customs and Border Protection sent this bulletin at 01/23/2024 04:22 PM EST Cargo Systems Messaging Service CSMS # 59151157 - **REMINDER** ACE Account and Subaccount Merge Request Letter Email Procedure; Do Not Mail or Courier Account Merge Letters Please remember that CBP permanently transitioned to the procedures for ACE Account merge requests established during the COVID-19 pandemic. Specifically, all merge requests must be submitted electronically; do not use courier or postal mail. How to request CBP to merge or divest (remove) subaccounts: The Account Owner (AO) or Officer of the Entity must submit a letter, on entity letterhead, requesting CBP to merge subaccounts. The submitted letter must: Include the signature of the AO or a legally authorized entity officer. Request merging of the acquired subaccounts or divestiture of sub accounts. Include a copy of the public news release confirming completion of the acquisition or divestiture. Include the reason or justification for the action on the ACE Portal sub accounts. Include specific account information as outlined on the Managing an ACE Secure Data Portal Account Page under the Merging ACE Portal Accounts Tab Managing an ACE Secure Data Portal Account | U.S. Customs and Border Protection (cbp.gov) . If you have a National Account Manager (NAM), please email your letter to your NAM. All account requests go to your NAM. If you do not have a NAM, please email a signed copy of the letter to the ACE Portal Account Administrator - selma.e.larson@cbp.dhs.gov , and copy (cc) ACE Support - ace.support@cbp.dhs.gov . For tracking, without a NAM, you may contact the CBP Technology Services to request a ticket. By Email: ACE Support – ace.support@cbp.dhs.gov [NOTE: When emailing the helpdesk, attach a copy of the letter to attach to the ticket] By Phone: ACE Service Desk (ASD) – (866) 530-4172, select option ‘1’ Ask for ticket assignment to TTO Account Merges and Selma E Larson. Use Subject: ACE Account Modification Request (no extra words, please). For additional information on Managing Portal Accounts, please refer to the following website: Managing an ACE Secure Data Portal Account | U.S. Customs and Border Protection (cbp.gov) . Related messages: CSMS #52009723 (deleted); replaced by CSMS # 52016204 Update your subscriptions, modify your password or e-mail address, or stop subscriptions at any time on your Subscriber Preferences Page . You will need to use your e-mail address to log in. If you have questions or problems with the subscription service, please contact subscriberhelp.govdelivery.com . This service is provided to you at no charge by U.S. Customs and Border Protection . Privacy Policy | GovDelivery is providing this information on behalf of U.S. Department of Homeland Security, and may not use the information for any other purposes. Powered by Privacy Policy | Cookie Statement | Help

Frequently asked questions

What is CSMS 59151157?

CSMS 59151157 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "**REMINDER** ACE Account and Subaccount Merge Request Letter Email Procedure; Do Not Mail or Courier Account Merge Letters". 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 59151157 published?

CBP published CSMS 59151157 on January 23, 2024. 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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