Scheduled Maintenance for the Affordable Care Act Information Returns (AIR) System

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QuickAlerts for Electronic ACA Information Returns

September 14, 2026

Subject: Scheduled Maintenance for the Affordable Care Act Information Returns (AIR) System

The scheduled maintenance window will begin on Tuesday, September 22, 2026, at 5:00 P.M. Eastern Time.

The AIR Production and ACA Assurance Testing System (AATS) environments will be unavailable due to scheduled maintenance from Tuesday, September 22, 2026, at 5:00 P.M. Eastern Time until Thursday, September 24, 2026, at 8:00 P.M. Eastern Time.

Please do not attempt to access the AIR Production or AATS environments via the Application to Application (A2A) and User Interface (UI) Channels during the maintenance period.

Please monitor the AIR System Operational Status page for any updates.

We apologize for any inconvenience this may cause.

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