Frequent Questions

What is CDX?

CDX- Stands for ?Central Data Exchange?. CDX is the point of entry on the Environmental Information Exchange Network for environmental data submissions to the Agency. CDX works with EPA programs looking for a way to better manage incoming data, & stakeholders looking for a way to reduce time & money spent to meet reporting requirements. In non-computer terms, it?s basically a central portal through which EPA databases are accessed. Visit for more information.
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