CSMS # 64610567 - ACE Certification Standard Invasive Maintenance Window on April 2, 2025 U.S. Customs and Border Protection sent this bulletin at 04/01/2025 05:09 PM EDT Cargo Systems Messaging Service CSMS # 64610567 - ACE Certification Standard Invasive Maintenance Window on April 2, 2025 There will be an ACE Certification Standard Invasive Maintenance Window on Wednesday, April 2, 2025, from 5:00 p.m. to 8:00 p.m. ET.