TGG Accomplishments 

The TGG Accomplishments Report can be accessed HERE.

ee/en Governance

The Exchange Network and E-Enterprise are jointly governed by states, tribes, and EPA representatives. Click HERE for details on how the governance groups and other EN & EE partners are organized. For more information on EE, click HERE

Lisa Gover


Campo Band of Mission Indians Environmental Protection Agency, California

If you have trouble accessing resources or pages linked to Dropbox, please contact

Non-Employee Discrimination Complaints:
ITEP does not discriminate on the basis of race, color, national origin, disability, age or sex in the administration of its programs or activities. To learn more, or file a complaint, go to the ITEP Non-Employee Discrimination Complaint Page.
Quejas por discriminación cometida contra personas que no trabajan para ITEP:
ITEP no discrimina por motivos de raza, color, país de origen, discapacidad, edad o sexo en la administración de sus programas o actividades. Para saber más al respecto o presentar una queja, vaya a la página de quejas por discriminación cometida contra personas que no trabajan para ITEP.


The TGG is always looking for new members. Click HERE for more information.

The Exchange Network

The EN is a partnership among States, Territories, Tribes, and the U.S. EPA that is improving and expanding the exchange of environmental information. The TENT provides input to the EN on matters pertaining to tribal participation in the Exchange Network.

The Tribal Governance Group (TGG) is comprised of tribal professionals working on various aspects of the EN whose primary purpose is to ensure representation of tribal perspectives and issues in the overall Exchange Network governance structure, and to foster and enhance tribal participation in the Network. Current TGG members have over 40 years cumulative experience on Exchange Network topics and many of them have been directly involved in implementing EN projects for tribes. If you are interested in more information on the activities and experiences of the TGG members, please contact us at

THE Institute for Tribal Environmental Professionals (ITEP)

In 2014, ITEP began a cooperative agreement with EPA's Office of Environmental Information to provide tribal support for the NEIEN. In this capacity, ITEP works with TENT and tribes, offering technical and programmatic support on Exchange Network topics.

TGG Charter, 2019

TGG members


Air Quality Program Manager

Pala Band of Mission Indians

Pala, California

Frank Harjo

GIS Manager

Muscogee (Creek) Nation

Okmulgee, Oklahoma

Bryanna Vaughan

Water Quality Coordinator

Bishop Paiute Tribe

Bishop, California

Angie Reed

Water Resource Planner

Penobscot Indian Nation

Bangor, Maine

bruce Jones

SSHIAP Section Manager

Northwest Indian Fisheries Commission (NWIFC)

Olympia, Washington

Linda Rosas-Bill

Environmental Director

Habematolel Pomo of Upper Lake, California

APril Hathcoat

Environmental Director

Cherokee Nation

Tahlequah, Oklahoma

Needs Assessment

Conducted to better understand current tribal capacity, needs, and challenges related to environmental data management, collection, and use. Click HERE to view the Executive Summary and Full Report.


The mission of the Tribal Governance Group is to support management and communication of tribes' environmental data and advocate for tribal interests in the Exchange Network. Click HERE to view the current TGG Charter.

The purpose of the TGG is to promote tribal sovereignty by empowering tribes to make informed environmental decisions, facilitate access to resources and tools for improving data management and exchange solutions, and inform and collaborate with EE governance groups."

Tribal Governance Group (TGG)