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CBP ACE Latest Updates and System Changes (Reminder to Complete ACE Satisfaction Survey)

Published Aug. 27, 2026 | Updated Sept. 8, 2026

Note: This page will be updated as CBP releases new ACE guidance, filing requirements, and system updates.

Key Points

  • On Aug. 28, 2026, CBP announced a final rule requiring an Electronic Export Manifest (EEM) in ACE for rail cargo departing the United States to Canada or Mexico. The rule takes effect Oct. 26, 2026, with enforcement beginning Oct. 26, 2027.
  • The rule requires electronic transmission of rail export manifest information before departure and establishes eligible filers and filing time frames.
  • On Aug. 27, 2026, CBP updated the HTSUS reporting order in ACE when Chapter 98 or Chapter 99 classifications apply.
  • The reporting sequence starts with Chapter 98, followed by applicable Chapter 99 classifications, and ends with the Chapter 1-97 classification.
  • Sept. 8, 2026: CBP reminds ACE users to complete 2026 satisfaction survey. CBP is asking ACE users to complete its voluntary and anonymous 2026 ACE User Satisfaction Survey by 11:59 p.m. ET on September 11, 2026. Complete survey here.

T​​​​​​​​​​​​​​he U.S.CBP officer at a computer with the U.S. Customs and Border Protection seal displayed on screen, representing updated ACE entry summary HTSUS reporting guidance Customs and Border Protection (CBP) regularly updates its Automated Commercial Environment (ACE) guidance, requirements, and functionality for importers, customs brokers, and other trade participants. These updates can affect entry filing, tariff classification reporting, account management, refunds, cargo processing, and other customs procedures. We will update this page with the latest ACE guidance and requirements as CBP releases new information.

Click on any update below to jump directly to the details you need.

Electronic Export Manifest Requirement for Rail Cargo

On Aug. 26, 2026, CBP published a final rule requiring an Electronic Export Manifest (EEM) for cargo departing the United States by rail to Canada or Mexico.

The rule requires export manifest data for rail cargo to be transmitted electronically through ACE. It also identifies the parties eligible to transmit the information and establishes the time frames for submitting the information before the train departs the United States.

Key Dates

  • Effective date: Oct. 26, 2026
  • Compliance date: Oct. 26, 2027, when CBP will begin enforcing the requirement

CBP states that mandatory electronic filing will improve visibility of outbound rail cargo, address cargo security concerns, and provide efficiencies for the trade.

For more information, see the Federal Register final rule. CBP also provides EEM system information and implementation guides.

Updated HTSUS Reporting Order for ACE Entry Summaries

CBP issued CSMS #69668138 with updated guidance on the order for reporting multiple HTSUS classifications on the same entry summary line in ACE when Chapter 98 or Chapter 99 classifications apply.

HTS Reporting Sequence

Filers should report the classifications in the following order:

  1. Chapter 98 classification, if applicable
  2. Chapter 99 classification(s) for additional duties, if applicable
  3. Chapter 99 trade remedy classifications, in this order:
    • Section 301
    • Section 338
    • Section 232
    • Section 201 duties, if applicable
    • Section 201 quota, if applicable
  4. Chapter 99 replacement-duty or other-use classification, including a Miscellaneous Tariff Bill provision or other applicable provision
  5. Chapter 99 classification for other quota, if applicable
  6. Chapter 1-97 classification

The entered value should generally appear on the Chapter 1-97 HTSUS classification, unless Chapter 98 reporting provisions require different treatment.

Filing Errors and Trade Remedy Questions

Filers that encounter entry summary filing errors should contact their CBP client representative or the ACE Help Desk. For questions about trade remedy entry filing, CBP directs filers to the Trade Remedy Branch at TradeRemedy@cbp.dhs.gov.

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