Friday, August 24, 2012:

Saturday, September 8, 2012 - 4:00 AM to 4:00 PM ET - Network Maintenance: The CDX Production environment and the Exchange Network may experience intermittent outages due to a firewall upgrade.

Thursday, August 9, 2012:

Friday, August 24, 2012 - 6:00 PM to Monday, August 27, 4:00 AM ET - Network Maintenance: The CDX Pre-Production Environment may experience intermittent outages due to network maintenance.

Wednesday, August 8, 2012:

Thursday, August 9, 2012 - 6:00 PM to Friday, August 24, 2012 - 8:00PM ET - Application Maintenance and Database Upgrades: Lead-Based Paint Firm Application and Lead Abatement Notifications will be unavailable due to scheduled upgrades.

Thursday, June 14, 2012:

Saturday, June 23, 2012 - 12:00 AM to 9:00 PM ET: The CDX Pre-Production Environment may experience intermittent outages due to electrical maintenance.

Thursday, June 14, 2012:

Saturday, June 23, 2012 - 12:00 AM to 9:00 PM ET: The CDX Pre-Production Environment may experience intermittent outages due to electrical maintenance.

Monday, May 14, 2012:

Saturday, May 19, 2012 - 12:00 AM to 9:00 PM ET: The CDX Pre-Production Environment may experience intermittent outages due to electrical maintenance.

Monday, March 26, 2012:

Friday, March 30, 2012 - 5:00 PM to Monday, April 2, 8:00 AM ET - Application Maintenance: Verify will be unavailable due to scheduled maintenance.