Recent Announcements
Saturday, March 3, 2012 - 6:00 AM to 12:00 PM ET - Database Upgrades: CDX Web and the Exchange Network may experience intermittent outages due to database maintenance.
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.
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 - 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 - 7:00 PM to 11:00 PM ET - CDX Web and the Exchange Network may experience intermittent outages due to server maintenance.
Friday, October 21st - 8:00 AM through Monday, October 24th - 8:00 AM (EST) -- RMP*eSubmit will be unavailable for necessary scheduled maintenance.
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.
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 - 12:00 AM to Monday, July 4, 2011 - 08:00 AM ET - The CDX Web and Exchange Network will be unavailable for electrical maintenance.
April 6, 2011 - EPA will no longer accept paper for Toxic Substances Control Act (TSCA) section 5 Premanufacture and Significant New Use Notifications using the new electronic-PMN (e-PMN) software. All notifiers must submit their new notices and support documents for notices submitted after April 6, 2010 either electronically, via Central Data Exchange (CDX), or on optical disc. Note that optical discs will no longer be accepted next year, after April 6, 2012.
Saturday, March 26, 2011 - 8:00 AM to 10:00 AM ET - The CDX Web and Exchange Network may experience intermittent outages due to server maintenance.
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 - 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 - 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 - 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 - 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 - 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 - 7:00 AM to 9:00 AM ET - Application Maintenance: The CDX Web and Exchange Network may experience intermittent outages due to application maintenance.
Monday, August 23, 2010 - 8:00 AM to Sunday, September 5, 2010 - 11:00 PM ET - Database Upgrades: To improve the quality of performance and better serve our data exchange customers, EPA is performing upgrades to the CDX environment. During this maintenance period, users of the CDX Web and Exchange Network may not be able to access some older records prior to March 2009. All records will be restored and accessible at the conclusion of this maintenance window. We apologize for any inconvenience. If you have any questions, please contact nodehelpdesk@epacdx.net.
Saturday, August 28, 2010 - 8:00 AM to Sunday, August 29, 2010 - 12:00 PM ET - Database Upgrades: The CDX Web and Exchange Network may experience intermittent outages due to database maintenance.
Friday, July 30, 2010 - 8:00 PM - CDX will be upgrading some user public/private key pairs used in CROMERR components to comply with federal information processing standards and directives. If you have difficulty decrypting files please contact the CDX Help Desk at (888) 890-1995 for assistance.
Sunday, July 18, 2010 - 8:00 PM to Monday, July 19, 2010 - 12:00 AM EST - The CDX Production environment and the Exchange Network may experience intermittent outages.
Sunday, July 11, 2010 - 8:00 PM to Monday, July 12, 2010 - 12:00 AM EST - The CDX Production environment and the Exchange Network may experience intermittent outages.
Saturday, July 10, 2010 - CDX will deploy mandatory TLS browser encryption. Users without compliant and properly configured web browsers will be unable to reach CDX.
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 - 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 - 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 - 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 - 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 - 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 - 10:00 AM to 10:00 PM EST - Database Upgrades: The CDX Web and Exchange Network may experience intermittent outages due to database maintenance.
Saturday, December 19, 2009 - 10:00 AM to 10:00 PM EST - Database Upgrades: The CDX Web and Exchange Network may experience intermittent outages due to database maintenance.
Saturday, December 12, 2009 - 10:00 AM to 4:00 PM EST - Database Upgrades: The CDX Test environment will be unavailable due to database maintenance.
Saturday, September 26, 2009 - 07:00 PM to 11:00 PM EST - IndenTrust will be performing a scheduled maintenance activity on the production environment to facilitate enhancements on the IdenTrust system. Production changes will begin at 7:00 PM. A 72 hour advance notification will clarify expected window as necessary. The following services may be intermittently affected during this maintenance window: Certificate lifecycle events to include application, issuance, and retrievals. IdenTrust will publish a CRL that will remain valid throughout the maintenance window. Validations through CRL/LDAP are not expected to be affected.
Saturday, September 12, 2009 - 07:00 PM to 11:00 PM EST - IndenTrust will be performing a scheduled maintenance activity on the production environment to facilitate enhancements on the IdenTrust system. Production changes will begin at 7:00 PM. A 72 hour advance notification will clarify expected window as necessary. The following services may be intermittently affected during this maintenance window: Certificate lifecycle events to include application, issuance, and retrievals. IdenTrust will publish a CRL that will remain valid throughout the maintenance window. Validations through CRL/LDAP are not expected to be affected.
Thursday, September 10th, 2009 - 06:00 PM to September 14, 2009 8:00 AM EST All CDX Development/Test environments will be unavailable.
Tuesday, September 8, 2009 - 06:00 PM to September 10, 2009 6:00 PM EST - CDX may experience intermittent outages throughout the business day.
Saturday, August 22, 2009 - 07:00 PM to 11:00 PM EST - IndenTrust will be performing a scheduled maintenance activity on the production environment to facilitate enhancements on the IdenTrust system. Production changes will begin at 7:00 PM. A 72 hour advance notification will clarify expected window as necessary. The following services may be intermittently affected during this maintenance window: Certificate lifecycle events to include application, issuance, and retrievals. IdenTrust will publish a CRL that will remain valid throughout the maintenance window. Validations through CRL/LDAP are not expected to be affected.
Saturday, July 25, 2009 - 07:00 PM to 11:00 PM EST - IndenTrust will be performing a scheduled maintenance activity on the production environment to facilitate enhancements on the IdenTrust system. Production changes will begin at 7:00 PM. A 72 hour advance notification will clarify expected window as necessary. The following services may be affected during this maintenance window: Certificate lifecycle events to include application, issuance, and retrievals. IdenTrust will publish a CRL that will remain valid throughout the maintenance window. Validations through CRL/LDAP are not expected to be affected.
Friday, June 5, 2009 - 6:00 PM to Saturday, June 6, 2009 - 5:00 PM EST - TRIMEweb may experience intermittent outages due to maintenance enhancements.
Friday, May 1, 2009 - 5:00 PM to Saturday, May 2, 2009 - 9:00 PM EST - TRIMEweb may experience intermittent outages due to maintenance enhancements.
Thursday, April 30, 2009 - 6:00 PM to 9:00 PM EST - TRIMEweb may experience intermittent outages due to maintenance enhancements.
The TRI-MEweb application will be unavailable to all users in order to perform maintenance in preparation for Reporting Year 2008. TRI-MEweb submissions and/or Revisions are not allowed during this time. TRI-MEweb RY08 will be available to all reporting facilities by April 22, 2009 6:00 AM. Please feel free to contact the CDX Helpdesk if you have any questions or concerns.
Saturday, March 14, 2009 - 07:00 PM to 11:00 PM EST - IndenTrust will be performing a scheduled maintenance activity on the production environment to facilitate enhancements on the IdenTrust system. Production changes will begin at 7:00 PM. A 72 hour advance notification will clarify expected window as necessary. The following services may be affected during this maintenance window: Certificate lifecycle events to include application, issuance, and retrievals. IdenTrust will publish a CRL that will remain valid throughout the maintenance window. Validations through CRL/LDAP are not expected to be affected.
March 3, 2009 5:00 PM EDT to April 6, 2009, 8:00 AM EDT - The TRI-MEweb application will be unavailable to all users in order to perform maintenance in preparation for Reporting Year 2008. TRI-MEweb submissions and/or Revisions are not allowed during this time. TRI-MEweb RY08 will be available to all reporting facilities by March 16th. Please feel free to contact the CDX Helpdesk if you have any questions or concerns.
Saturday, February 28, 2009 - 06:00 AM to March 01, 2009 - 12:00 AM EST - A database transition of swapping the host name will be performed and it will require PRODDBMS3 to be down during this window. The expected down-time is anticipated to be 15- 18 hours.
Saturday, February 21, 2009 - 07:00 PM to 11:00 PM EST - IndenTrust will be performing system maintenance on the production environment. The downtime is scheduled for 4 hours for testing and remediation if necessary. The following systems may be affected during this maintenance window: Certificate lifecycle events, example: on-line applications, retrievals, and CMC access. Validations and LRA access should not be affected during the maintenance window.
Sunday, February 15, 2009 - 09:00 AM EST to 2:00 PM EST - CDX Web may be intermittently unavailable to all users due to operating system maintenance.
On Saturday, September 6th 12:00AM - 04:00 PM EST, the CDX Production environment and Exchange Network may experience intermittent Network outages.
Thursday, June 12, 2008 5:00 PM to Monday, June 16, 2008 10:00 AM EST - The Stormwater Notice of Intent (SWeNOI) application will be down due to system upgrade. We do apologize for any inconvenience this may cause. Thank you for your patience.
The Stormwater Notice of Intent (SWeNOI) upgrade scheduled for Thursday, June 5, 2008 5:00 PM to Monday, June 9, 2008 10:00 AM EST has been postponed for approximately one week. As a result the SWeNOI application will be fully operational.
On Thursday, June 5th, 2008 5:00 PM to Monday, June 9th, 2008 10:00 AM EST - Stormwater Notice of Intent (SWeNOI) application will be down due to system upgrade.
On Saturday, May 31st 05:00AM to June 1st 03:00 AM EST, the CDX Production environment and Exchange Network may experience intermittent Network outages.
On April 18th from 06:00 PM to 7:00 PM EST, the CDX Production environment and Exchange Network may experience intermittent outages.
On March 8th from 06:00 AM EST to 6:00 PM EST, the CDX Production environment and Exchange Network may experience intermittent outage.
On February 23rd from 06:00 AM EST to 3:00 PM EST, the CDX UDDI service and RCRA converter services may experience intermittent outages.
January 31, 2008 02:00 PM EST to February 2, 2008, 10:00 PM EST - The TRIMEweb application will be unavailable to all users in order to perform system-wide stress testing. No TRIMEweb submissions and/or Revisions will be allowed during this time.
January 19, 2008 06:00 AM to 6:00 PM EST, CDX UDDI and RCRA Converter services may experience intermittent outages.
Friday, January 18, 2008 5:00 PM to Monday, January 21, 2008 9:00 AM EST - Stormwater Notice of Intent (SWeNOI) application will be down due to system upgrade. The upgraded version of SWeNOI will allow construction stormwater operators to submit and modify Notices of Intent (NOIs), Notices of Termination (NOTs) and Low Erosivity Waivers (LEWs) under EPA's stormwater general permit.
From Friday, December 14, 2007 5:00 PM to Tuesday, December 18, 2007 6:00 PM EST, the eNOI system will be unavailable due to a system upgrade. The updated eNOI system will be available for use starting Wednesday, December 19.
From Friday, December 7, 2007 at 2:00 PM to Saturday, December 8, 2007 at 8:00 PM, The TRIMEweb application will be unavailable to all users in order to perform system-wide stress testing. No TRIMEweb submissions and/or Revisions will be allowed during this time.
December 1, 2007 from 6:00 am to 6:00 pm EST, the CDX Web and Exchange Network may experience intermittent outages.
From November 17, 2007 06:00 AM EST to 6:00 PM EST, the CDX UDDI service and RCRA converter services may experience intermittent outages.
From November 3, 2007 06:00 AM EST to 6:00 PM EST CDX QA server XML Validation services may experience intermittent outages" affecting the Exchange Network and CDX Web applications.
From October 8, 2007 08:00 PM EST to 7:00 AM EST on October 9, 2007 - CDX servers will be intermittently unavailable to all users due to hardware and operating system maintenance upgrades.
September 8, 2007 06:00 AM EST to 1:00 PM EST - CDX Web may be intermittently unavailable to all users due to hardware and operating system maintenance upgrades.
August 11, 2007 06:00 AM EST to 2:00 PM EST - CDX Production Environment - Schematron and XML Validation services may experience intermittent outages.
July 28, 2007 from 08:00 AM EST to 12:00PM EST - CDX Production including theEPA Node and the Exchange Network may experience brief intermittant outages for Network/Firewall maintenace.
July 14, 2007 from 08:00 AM EST to 12:00PM EST - CDX Production including theEPA Node and the Exchange Network may experience brief intermittant outages for Network/Firewall maintenace.
On July 9, 2007 from 05:00 PM EST to 11:00 PM EST - CDX Pre-production Environment - CDXPREPAPSRV4 (QA) Server will be upgraded from Windows 2000 to Windows 2003 Enterprise edition. Schematron and XML Validation services will be unavailable during the upgrade.
On June 9, 2007 05:00 AM EST to 12:00(NOON)PM EST - CDX Web and Exchange Network may be unavailable to all users due to database maintenance upgrades in the CDX Pre-production(Test)environment.
On June 2, 2007 from 06:00 AM EST to 06:00 PM EST - CDX Web may be unavailable to all users, including the Exchange Network due to hardware and operating system maintenance upgrades.
May 26, 2007 04:00 AM EST to May 27, 2007, 08:00 AM EST - CDX Web may be unavailable to all users, including the Exchange Network due to preventive maintenance of the NCC electrical systems.
May 19, 2007 06:00 AM EST to Midnight EST - CDX Web may be unavailable to all users due to hardware and operating system maintenance upgrades.
May 12, 2007 06:00 AM EST to 05:00 PM EST - CDX Web may be unavailable to all users due to hardware and operating system maintenance upgrades.
April 21, 2007 05:00 AM EST to 4:00 PM EST - CDX Web may be unavailable to all users due to hardware and operating system maintenance upgrades.
March 16, 2007 09:00 PM EST to March 17, 2007, Midnight EST - CDX Web may be unavailable to all users, including the Exchange Network due to hardware and operating system maintenance upgrades.
March 9, 2007 06:00 PM EST to March 11, 2007, Midnight EST - CDX Web may be unavailable to all users, including the Exchange Network due to hardware and operating system maintenance upgrades.
March 3, 2007 06:00 AM EST to March 3, 2007, 05:00 PM EST - CDX will be unavailable to all users, including the Exchange Network due to hardware and operating system maintenance upgrades.
February 23, 2007 09:00 PM EST to February 24, 2007, 12:00 PM EST - CDX will be unavailable to all users, including the Exchange Network due to hardware and operating system maintenance upgrades.
January 26, 2007 06:00 PM to January 29, 2007, 08:00 AM EST - CDX will be unavailable to all users, including the Exchange Network due to support for system-wide stress testing.
December 30, 2006 06:00 AM to 10:00 PM - Power outage at the EPA National Computer Center (NCC) in Research Triangle Park: CDX will be unavailable to all users, including the Exchange Network.
December 15, 2006 09:00 PM to December 16, 2006 2:00PM - Database Maintenance: CDX will be unavailable to all users, including the Exchange Network.
September 15, 2006 09:00 PM to September 16, 2006 2:00PM - Database Maintenance: CDX will be unavailable to all users, including the Exchange Network.
July 28, 2006 09:00 PM to July 29, 2006 02:00PM - Database Maintenance: CDX will be unavailable to all users, including the Exchange Network.
May 26, 2006 - Long Term 2 Enhanced Surface Water Treatment Rule (LT2) program will be available to CDX users.
May 12, 2006 - CDX Inbox enhancement is scheduled to allow easier management of Inbox messages for all registered CDX users. While the current list, select, and download attachment features for unzipped files will continue to be available, CDX will now allow sorting Inbox messages by clicking headers, including open status, and support the selection and download of up to 20 inbox messages and attachments at one time sent to a zip file on your desktop.
April 21, 2006 09:00 PM to April 22, 2006 12:00PM - Database Maintenance: CDX will be unavailable to all users, including the Exchange Network.
February 23, 2006 - CDX is announcing the ability to UPGRADE current Central Data Exchange (CDX) accounts used by public water systems, States and EPA to access the Safe Drinking Water Accession and Review System (SDWARS) during the Unregulated Contaminant Monitoring Regulation 1 (UCMR1 2001-2005). This upgrade will allow users to transfer their accounts and related information from SDWARS1 to SDWARS2. These users must participate in this "PRE-REGISTRATION" process in order to use their current CDX account for UCMR2.
SDWARDS/UCMR: The Safe Drinking Water Accession & Review System (SDWARS) Database will Officially close on December 9, 2005. This will end the data collection for Unregulated Contaminants for this round of monitoring. If you have not yet submitted your monitoring requirements, please do so before the closing date. There will be no user access after this date. If you have any questions, please contact the Helpdesk at, 888-890-1995.
November 5, 2005 08:00 AM to 02:00 PM - Database Upgrades: CDX will be unavailable to all users, including the Exchange Network.
October 8/9, 2005 - CDX Web archiving process and IDEF will be down for maintenance. The Exchange Network won't be affected; however, EPA Node exchanges using CDX will be interrupted.
August 27, 2005 08:00 AM to 02:00 PM - Database Upgrades: CDX will be unavailable to all users, including the Exchange Network.
August 5, 2005 10:00 AM to 6:00 PM - FLPP/LEAD back-end database server move: The CDX FLPP/Lead application will be down during this time.
August 5, 2005 8:00 PM to August 7, 2005 8:00 AM - Database Version Upgrades: The CDX Node will be unavailable to all users.
July 29, 2005 8:00 PM to July 31, 2005 8:00 AM - Database Version Upgrades: CDX Web Flows will be unavailable to all CDX Web users. The Exchange Network won't be affected; however, EPA Node exchanges using CDX will be interrupted.
May 15, 2005 - System Upgrade/Maintenance: The CDX application server for archives and Gentran process will be unavailable from 06:00 PM to 11:30 PM Sunday night. This will temporarily affect CDX Web back-end archiving processes for all CDX Web data flows. The Exchange Network won't be affected; however, EPA Node exchanges using CDX will be interrupted.
May 1, 2005 - System Upgrade/Maintenance: The CDX mail server will be unavailable from 08:00 PM to 11:00 PM Sunday night. This will temporarily affect CDX Web mail functionality and AQS users will be unable to download files from CDX AQS Web during this time.
March 4, 2005 - System Upgrade/Maintenance: The UCMR Flow will be unavaliable to all CDX Web UCMR users from 05:00 PM to Saturday, March 5, 2005 05:00 PM. This will not affect other CDX Web Flows or EPA Node exchanges using CDX.
February 26/27, 2005 - UCMR will be unavailable from 7:00am Saturday 2/26 to 7:00pm Sunday 2/27 due to Oracle upgrade activity.
February 13, 2005 - System Upgrade/Maintenance: The CDX web will be unavailable to all users from 08:00 PM to 11:00 PM. This will not affect the Exchange Network; however, EPA Node exchanges using CDX will be interrupted.
December 05, 2004 - GigaBit Switch Upgrade: The CDX Web and the Exchange Network will be unavailable to all users from 8:00 PM to 12:00 PM (EST).
November 20, 2004 - Database Version Upgrades: The CDX web will be unavailable to all users. This will not affect the Exchange Network; however, EPA Node exchanges using CDX will be interrupted.
November 19, 2004 - Database Version Upgrades: The CDX web will be unavailable to all users from November 19, 2004 09:30 PM to November 20, 2004 01:00 AM. This will not affect the Exchange Network; however, EPA Node exchanges using CDX will be interrupted.
October 29, 2004 - New CDX Node Service: New schema validation service for eDMR, FRS, AQS and RCRA flows is now available on the Central Data Exchange (CDX) Production system.
October 29, 2004 - New AQS XML File Support: The Air Quality Subsystem (AQS) Submittal Form application is available for XML file upload and schema validation.