CSMS # 68000019 - ACE Certification Standard Invasive Maintenance Window on March 11, 2026, from 5:00 p.m. ET to 8:00 p.m. ET U.S. Customs and Border Protection sent this bulletin at 03/10/2026 02:44 PM EDT Cargo Systems Messaging Service CSMS # 68000019 - ACE Certification Standard Invasive Maintenance Window on March 11, 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 11, 2026 from 5:00 p.m. ET to 8:00 p.m. ET.