CSMS # 66038438 - ACE Certification Standard Invasive Maintenance Window from 5:00 pm to 8:00 pm ET on August 27, 2025 U.S. Customs and Border Protection sent this bulletin at 08/26/2025 04:47 PM EDT Cargo Systems Messaging Service CSMS # 66038438 - ACE Certification Standard Invasive Maintenance Window from 5:00 pm to 8:00 pm ET on August 27, 2025 Please be advised there will be an ACE Certification Standard Invasive Maintenance Window on August 27, 2025, from 5:00 pm to 8:00 pm ET.