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United States Environmental Protection Agency
Central Data Exchange
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Central Data Exchange
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The Central Data Exchange (CDX) enables fast, efficient and more accurate environmental data submissions from state and local governments, industry and tribes to the Environmental Protection Agency (EPA) and participating program offices.

EPA's CDX is the point of entry on the Environmental Information Exchange Network (Exchange Network) for environmental data submissions to the Agency. CDX works with both EPA program offices looking for a way to better manage incoming data, and stakeholders looking for a way to reduce time and money spent to meet EPA reporting requirements. CDX provides stakeholders with the ability to:

  • Submit data through one centralized point of access
  • Fill out a single electronic form which can be submitted instantaneously instead of mailing multiple paper forms
  • Receive Agency confirmation when submissions are received
  • Access or pull data submissions through web services
  • Reduce costs associated with submitting and processing data submissions

Have a question about CDX?
The CDX Help Desk is available for data submission technical support between the hours of 8:00 am and 6:00 pm (EST) at 1-888-890-1995 or

Current Snapshot
30,000 registered CDX participants

14 systems in production

10 systems in test or development

Visit CDX Projects
Related Programs
Cross-Media Electronic Reporting and Record-keeping Rule

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Network Grants Program

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