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System MaintenanceACECSMS #68479332 ·

CBP ran ACE maintenance window on April 29, 2026 (test environment)

CBP title: ACE Certification Standard Invasive Maintenance Window on April 29, 2026 from 5:00 p.m. to 8:00 p.m. ET

This message is from April 28, 2026. Later CSMS messages may have changed it. See the latest trade news

What did CBP announce?

CBP announced an ACE certification standard invasive maintenance window scheduled for April 29, 2026, from 5:00 p.m. to 8:00 p.m. ET. This affected the ACE certification (test) environment, not the production system used for live filings.

What is Allied's position?

This notice concerns a system maintenance window that has already passed and applied to the ACE test environment. It did not affect entries Allied filed for clients. Clients do not need to take any action regarding this message.

General information, not legal advice.

What does the CBP message say?

There will be an ACE certification standard invasive maintenance window on April 29, 2026, from 5:00 p.m. to 8:00 p.m. ET.

Read the official CSMS #68479332

Which terms does this use?

Does this change affect your entries?

Send us your entry numbers or your product list. A licensed customs broker tells you what the change means for your goods.

Call (908) 291-8001 or email info@alliedchb.com