ACE CERTIFICATION EXTENDED Scheduled Maintenance, Wed. March 31, 2021 @ 5pm ET to 9pm ET **TRADE TESTS NEEDED**

CSMS #46814584 - ACE CERTIFICATION EXTENDED Scheduled Maintenance, Wed. March 31, 2021 @ 5pm ET to 9pm ET **TRADE TESTS NEEDED** U.S. Customs and Border Protection sent this bulletin at 03/30/2021 05:10 PM EDT CSMS #46814584 - ACE CERTIFICATION EXTENDED Scheduled Maintenance, Wed. March 31, 2021 @ 5pm ET to 9pm ET **TRADE TESTS NEEDED** There will be an EXTENDED Maintenance in the ACE CERTIFICATION environment tomorrow evening, Wednesday , March 31, 2021 from 5PM ET to 9PM ET for an ACE Infrastructure software upgrade that will improve the system performance for processing electronic MQ messages , inbound and outbound, in the following ACE areas: ACE Import manifests/bills (all modes of transportation) and associated entry filings. QP/WP In-bonds The following ABI Queries Cargo Manifest Query (CQ/C1) Importer/Bond Query (KI/KR) Entry Summary Query (JC/JD) Trade partners that have time to submit test messages in these areas are encouraged to do so in Certification on Thursday and Friday, April 1 st and 2 nd . The software upgrade to the ACE Production environment is planned for this weekend, April 3 rd , 9pm ET to 4am ET.