CSMS # 67926543 - ACE Certification Standard Invasive Maintenance Window on March 4, 2026 from 5:00 p.m. ET to 8:00 p.m. ET U.S. Customs and Border Protection sent this bulletin at 03/03/2026 01:26 PM EST Cargo Systems Messaging Service CSMS # 67926543 - ACE Certification Standard Invasive Maintenance Window on March 4, 2026, from 5:00 p.m. ET to 8:00 p.m. ET There will be an ACE certification standard invasive maintenance window on March 4, 2026, from 5:00 p.m. ET to 8:00 p.m. ET.