Saturday, March 12, 2011:

Saturday, March 12, 2011 - 9:00 AM to Sunday, March 13, 2011 - 5:00 PM ET - Network Maintenance at NCC: The CDX Web and Exchange Network may experience intermittent outages due to network maintenance at the EPA National Computer Center (NCC).

Saturday, January 22, 2011:

Saturday, January 22, 2011 - 4:00 PM to 8:00 PM ET - The CDX Web and Exchange Network may experience intermittent outages due to server maintenance.

Saturday, December 4, 2010:

Saturday, December 4, 2010 - 8:00 AM to 12:00 PM ET - Application Maintenance: The CDX Web and Exchange Network may experience intermittent outages due to server maintenance.

Saturday, November 20, 2010:

Saturday, November 20, 2010 - 8:00 AM to 12:00 PM ET - Application Maintenance: The CDX Web and Exchange Network may experience intermittent outages due to server maintenance.

Saturday, October 30, 2010:

Saturday, October 30, 2010 - 7:00 AM to 9:00 AM ET - Application Maintenance: The CDX Web and Exchange Network may experience intermittent outages due to application maintenance.

Saturday, October 23, 2010:

Saturday, October 23, 2010 - 8:00 AM to 12:00 PM ET - Application Maintenance: The CDX Web and Exchange Network may experience intermittent outages due to server maintenance.

Saturday, October 16, 2010:

Saturday, October 16, 2010 - 7:00 AM to 9:00 AM ET - Application Maintenance: The CDX Web and Exchange Network may experience intermittent outages due to application maintenance.