CSMS # 68418319 - ACE Certification Standard Invasive Maintenance Window on April 22, 2026, from 5:00 pm to 8:00 pm ET U.S. Customs and Border Protection sent this bulletin at 04/21/2026 06:24 PM EDT Cargo Systems Messaging Service CSMS # 68418319 - ACE Certification Standard Invasive Maintenance Window on April 22, 2026, from 5:00 pm to 8:00 pm ET Please be advised there will be an ACE Certification Standard Invasive Maintenance Window on April 22, 2026, from 5:00 pm to 8:00 pm ET.