Exchange Network Service Center (ENSC) at a Glance
All files must be submitted to AQS through the National Environmental Information Exchange network (the "Exchange Network"). Typically, they are submitted through a common interface, the Exchange Network Service Center (ENSC).
[Note] the ENSC is provided by the Exchange Network Governing Board to allow files to be submitted to EPA national regulatory programs. Because it is not part of AQS it has a different look and feel that is described below.
Screen Layout
The first step in any interactive batch data submission to AQS takes place at the ENSC.

- ENSC Title Bar
- Quick Access Links
- Tabs
- Interactive Window
[Note] Details about how to use the ENSC are in the "Batch" section.