If I apply for or receive an EN grants, is there a requirement to “share” data? If not, why is the program called the “Exchange Network”?

There is no requirement to share data.  The program is built around a sharing of technology, ideas, and projects within communities doing similar work.  EPA does encourage applicants to share data, as well as code or other project specifics, if they are interested, but there is no explicit requirement.  Applicants also have the flexibility to “share” certain data while holding other data for the internal workings of the Tribe, state, territory, or other organization. 

The IT Component and Project Registration form, which is due at the time of project close-out, just requires the grantee to provide summary information about their completed project, a point of contact, and the type of technology components that were either developed or reused. Grantees are invited to share more details in this form (such as links or code), as this can help other applicants to be successful in similar projects, but this is optional.