ACE Production Extended Maintenance Window on 12/21/2021 from 4:00am to 12/21/2021 7:00am EST

CSMS #50453719 - ACE Production Extended Maintenance Window on 12/21/2021 from 4:00am to 12/21/2021 7:00am EST U.S. Customs and Border Protection sent this bulletin at 12/20/2021 04:20 PM EST CSMS #50453719 - ACE Production Extended Maintenance Window on 12/21/2021 from 4:00am to 12/21/2021 7:00am EST ACE Production Extended   Maintenance Window on 12/21/2021 from 4:00am to 12/21/2021 7:00am EST The following applications will not be available during this time · Drawback · ES EDI · Collections · Recon (Konvoy) · Statements · Importer 5106 · Truck EMH · Quota Query · Protest · ISF .