ACE Production Maintenance Window: October 3–4, 2026
CBP has scheduled standard invasive maintenance on the ACE production environment from 10:00 p.m. ET Saturday, October 3, 2026, through 4:00 a.m. ET Sunday, October 4, 2026, during which ACE filing capabilities may be unavailable. Importers and brokers with time-sensitive filings should account for this downtime window.
We treat scheduled ACE maintenance windows as a planning factor for weekend entry submissions, and our operations team is aware of this outage window when staging Saturday-night filings.
AI-assisted summary of a published CBP, USITC or Federal Register notice, with JFS CHB's position on it. For awareness only — always verify against the official notice before acting. Our position is general commentary on a published notice, not legal advice and not a binding opinion on any shipment. Nothing here creates a broker-client relationship or a duty of care, and it is not a substitute for a ruling, a licensed review of your facts, or the official notice itself.