ACE CERT out of Cycle Maintenance, Sat. April 17, 2021, 10:00pm to 12:00am ET Sun. April 18

CSMS #47016251 - ACE CERT out of Cycle Maintenance, Sat. April 17, 2021, 10:00pm to 12:00am ET Sun. April 18 U.S. Customs and Border Protection sent this bulletin at 04/16/2021 04:49 PM EDT CSMS #47016251 - ACE CERT out of Cycle Maintenance, Sat. April 17, 2021, 10:00pm to 12:00am ET Sun. April 18 There will be ACE CERT out of Cycle Invasive Maintenance Saturday evening, April 17, 2021 from 10:00pm ET to 12:00am ET Sunday, April 18, 2021 for ACE MQ Software upgrade maintenance.