CSMS # 66249610 - ACE Certification Standard Invasive Maintenance Window on September 17, 2025 from 5:00 p.m. ET to 8:00 p.m. ET U.S. Customs and Border Protection sent this bulletin at 09/16/2025 10:53 AM EDT Cargo Systems Messaging Service CSMS # 66249610 - ACE Certification Standard Invasive Maintenance Window on September 17, 2025 from 5:00 p.m. ET to 8:00 p.m. ET There will be an ACE certification standard invasive maintenance window on September 17, 2025 from 5:00 p.m. ET to 8:00 p.m. ET.