Sunday, June 27, 2010:

Sunday, June 27, 2010 - 8:00 PM to Monday, June 28, 2010 - 12:00 AM EST - The CDX Production environment and the Exchange Network may experience intermittent outages.

Sunday, May 2, 2010:

Sunday, May 2, 2010 - 08:00 AM to 12:00 PM EST - The CDX Web and Exchange Network may experience intermittent delays in electronic mail delivery due to system maintenance.

Saturday, April 24, 2010:

Saturday, April 24, 2010 - 06:00 AM to 11:00 PM EST - CDX and the Exchange Network may experience intermittent outages due to hardware upgrades.

Saturday, April 17, 2010:

Saturday, April 17, 2010 - 06:00 AM to 11:00 PM EST - CDX and the Exchange Network may experience intermittent outages due to hardware upgrades.

Saturday, April 10, 2010:

Saturday, April 10, 2010 - 09:00 AM to 10:00 AM EST - CDX and the Exchange Network may experience intermittent outages due to hardware upgrades at the EPA National Computer Center (NCC) in Research Triangle Park.

Saturday, March 27, 2010:

Saturday, March 27, 2010 - 06:00 AM to 11:00 PM EST - CDX and the Exchange Network may experience intermittent outages due to hardware upgrades at the EPA National Computer Center (NCC) in Research Triangle Park.

Saturday, February 6, 2010:

Saturday, February 6, 2010 - 10:00 AM to 10:00 PM EST - Database Upgrades: The CDX Web and Exchange Network may experience intermittent outages due to database maintenance.