Saturday, December 3, 2011:

Saturday, December 3, 2011 - 6:00 AM to 12:00 PM ET - Database Upgrades: CDX Web and the Exchange Network may experience intermittent outages due to database maintenance.

Sunday, November 20, 2011:

November 20, 2011 - The Central Data Exchange (CDX) web site will be modernized to leverage newly approved EPA web standards for Agency Public Access websites. The material functionality within CDX will be unaffected by these updates; a preview of the updates is available here.

Saturday, November 19, 2011:

Saturday, November 19, 2011 - 8:00 AM to 2:00 PM ET - Database Upgrades: The CDX Pre-Production Environment may experience intermittent outages due to database maintenance.

Sunday, November 13, 2011:

Sunday, November 13, 2011 - 7:00 PM to 11:00 PM ET - CDX Web and the Exchange Network may experience intermittent outages due to server maintenance.

Friday, October 21, 2011:

Friday, October 21st - 8:00 AM through Monday, October 24th - 8:00 AM (EST) -- RMP*eSubmit will be unavailable for necessary scheduled maintenance.

Monday, October 17, 2011:

October 17, 2011 - The Central Data Exchange (CDX) Pre-Production web site will be modernized to leverage newly approved EPA web standards for Agency Public Access websites. The material functionality within CDX will be unaffected by these updates; a preview of the updates is available here.

Thursday, August 4, 2011:

August 4, 2011 - CDX RadNet Maintenance: CDX Web no longer supports RadNet:Public Map and Query Services. For further information on public radiation reporting go to http://www.epa.gov/radnet/radnet-data/index.html.

Saturday, July 2, 2011:

Saturday, July 2, 2011 - 12:00 AM to Monday, July 4, 2011 - 08:00 AM ET - The CDX Web and Exchange Network will be unavailable for electrical maintenance.