Planned Maintenance and Status History
ESG Uptime for Last Quarter
| WebTrader Uptime | AS2 Uptime | Total ESG Uptime |
Overall | 100% | 100% | 100% |
Excluding Scheduled Outages | 100% | 100% | 100% |
Note: Target Service Level Agreement for ESG NextGen uptime is 99.5%. Uptime percentage reports on ESG NextGen uptime exclusive of FDA-wide outages.
System Configuration Change Notification
Major System Updates
ESG NextGen will provide advanced notification to industry users through the Unified Submission Portal (USP) and AS2 listservs for any upcoming user interface, major configuration, or major system change. This notification period allows for users to prepare, test, and provide feedback.
Minor System Updates
Outages due to ESG NextGen releases for minor new functionality or issue resolution, an email notification will be sent out through the USP and AS2 listservs at least one week in advance.
Planned Maintenance Updates
All planned maintenance updates will be posted here. This list of outages will be updated when changes to the schedule have been confirmed. Email notifications for planned maintenance updates will NOT be sent out. Please check back frequently to stay up to date.
| Maintenance Outage Date | Maintenance Outage Timeframe |
| Friday, January 9, 2026 | 10 PM ET - 12 AM ET, Saturday, January 10, 2026 |
| Friday, January 16, 2026 | 10 PM ET - 12 AM ET, Saturday, January 17, 2026 |
| Saturday, January 24, 2026 | 2 AM ET - 8 AM ET |
| Friday, February 6, 2026 | 10 PM ET - 12 AM ET, Saturday, February 7, 2026 |
| Saturday, February 21, 2026 | 2 AM ET - 8 AM ET |
| Friday, March 6, 2026 | 10 PM ET - 12 AM ET, Saturday, March 7, 2026 |
| Saturday, March 21, 2026 | 2 AM ET - 8 AM ET |
| Friday, April 3, 2026 | 10 PM ET - 12 AM ET, Saturday, April 4, 2026 |
| Saturday, April 18, 2026 | 2 AM ET - 8 AM ET |
| Friday, May 1, 2026 | 10 PM ET - 12 AM ET, Saturday, May 2, 2026 |
| Saturday, May 16, 2026 | 2 AM ET - 8 AM ET |
| Friday, May 29, 2026 | 10 PM ET - 12 AM ET, Saturday, May 30, 2026 |
| Saturday, June 13, 2026 | 2 AM ET - 8 AM ET |
| Friday, June 26, 2026 | 10 PM ET - 12 AM ET, Saturday, June 27, 2026 |
| Saturday, July 11, 2026 | 2 AM ET - 8 AM ET |
| Friday, July 24, 2026 | 10 PM ET - 12 AM ET, Saturday, July 25, 2026 |
| Saturday, August 8, 2026 | 2 AM ET - 8 AM ET |
| Friday, August 21, 2026 | 10 PM ET - 12 AM ET, Saturday, August 22, 2026 |
| Saturday, September 5, 2026 | 2 AM ET - 8 AM ET |
| Friday, September 18, 2026 | 10 PM ET - 12 AM ET, Saturday, September 19, 2026 |
| Saturday, October 3, 2026 | 2 AM ET - 8 AM ET |
| Friday, October 16, 2026 | 10 PM ET - 12 AM ET, Saturday, October 17, 2026 |
| Saturday, November 7, 2026 | 2 AM ET - 8 AM ET |
| Friday, November 13, 2026 | 10 PM ET - 12 AM ET, Saturday, November 14, 2026 |
| Saturday, November 28, 2026 | 2 AM ET - 8 AM ET |
| Friday, December 11, 2026 | 10 PM ET - 12 AM ET, Saturday, December 12, 2026 |
| Saturday, December 26, 2026 | 2 AM ET - 8 AM ET |
Please email ESGNGSupport@fda.hhs.gov✉️ if you would like to receive listserv notifications.