CSMS # 68610240 - ACE Certification Standard Invasive Maintenance Window on May 13, 2026 from 5:00 p.m. to 8:00 p.m. ET U.S. Customs and Border Protection sent this bulletin at 05/12/2026 09:47 AM EDT Cargo Systems Messaging Service CSMS # 68610240 - ACE Certification Standard Invasive Maintenance Window on May 13, 2026 from 5:00 p.m. to 8:00 p.m. ET There will be an ACE certification standard invasive maintenance window on May 13, 2026 from 5:00 p.m. to 8:00 p.m. ET.