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Environmental Information Exchange Network (EN)

  • IMPORTANT: FY 2025 Exchange Network Solicitation Notice Republished!

    A revised Exchange Network (EN) Solicitation Notice for the Fiscal Year (FY) 2025 EN grant competition has been posted to grants.gov, following the document’s revision and approval in accordance with updated Agency priorities. 

    See FY25 Exchange Network Solicitation …
  • Updated FY25 Exchange Network Grant Solicitation Notice Resources Now Available

    Updated versions of the FY25 optional, fillable templates (cover letter, project narrative, and budget narrative) and the optional budget calculation tool are now available. Changes have been made since the versions posted in January 2025, to align with the updated FY25 Solicitation Notice version.

    See Resources for Applicants and Grante…
Related Programs and Information
  • Central Data Exchange (CDX)
  • Exchange Network Partnership Website 
  • Tribal Environmental Information Exchange Network 

The Environmental Information Exchange Network (EN) is a partner-inspired, developed, implemented and governed information network. It facilitates environmental data sharing among EPA, states, tribes and territories. The EN:

  • Facilitates the sharing of environmental data, especially through shared and reusable services;
  • Streamlines data collection and exchanges to improve timeliness for decision making;
  • Increases the quality and access to environmental data;
  • Reduces burden and costs for co-regulators and the regulated community; and
  • Supports better decisions on environmental and health issues.

Grant funding is available annually for eligible states, federally-recognized tribes, and U.S. territories under the Exchange Network Grant Program in support of achieving the EN priorities above. A Solicitation Notice (SN) is posted each grant period to coincide with the next application cycle. See the links under ‘about the EN’ for more information.

The Cross-Media Electronic Reporting Rule (CROMERR) provides EN partners with standards for electronic reporting that improve the efficiency, speed and quality of data exchange while preserving the integrity of EPA’s compliance and enforcement activities. See the link under ‘Cross-Media Electronic Reporting Rule (CROMERR)’ for more information.

About the EN

  • Learn about the EN
  • Exchange Network Grant Program
  • Tribal Environmental Information Resources
  • Previous Exchange Network Grant Projects

Tools and Resources

  • Exchange Network Solicitation Notice
  • Browse a Glossary of Terms used by the Exchange Network
  • Resources for Applicants
  • IT Component and Project Registrations
  • Post Award Guidance for Grantees

Cross-Media Electronic Reporting Rule (CROMERR)

  • Learn about Electronic Reporting under EPA's Environmental Regulations
Contact Us About the Environmental Information Exchange Network to ask a question, provide feedback, or report a problem.
Last updated on October 6, 2025
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