TGG Charter

The TGG is in the process of finalizing its Charter. Please check back soon for updates.

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 TGG provides input to the EN on matters pertaining to tribal participation in the Exchange Network.

The Exchange Network 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

APril Hathcoat

Environmental Specialist III

Cherokee Nation

Tahlequah, Oklahoma


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 the TGG and tribes, offering technical and programmatic support on Exchange Network topics.


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

Exchange network Tribal Governance Group (TGG)

Robert Holden

Deputy Director

National Congress of American Indians (NCAI)

Bryanna Vaughan

Water Quality Coordinator

Bishop Paiute Tribe

Bishop, California

The purpose of the TGG is to promote tribal sovereignty, and data security and exchange through active participation in the Exchange Network, including all governing bodies. The TGG strives to empower tribes to make informed environmental decisions by facilitating access to resources and tools for improving data management and exchange solutions.


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

TGG Charter, 2014

Frank Harjo

GIS Manager

Muscogee (Creek) Nation

Okmulgee, Oklahoma

Tribes and the Exchange Network

Tribal Governance GroUp Members

  • 2001 - Phase I of the NEIEN Strategic Plan
  • 2005 - TGG Established
  • 2013 - Phase II of the NEIEN Strategic Plan
  • 2014 - TGG Charter enacted

Linda Rosas

Environmental Coordinator

Habematolel Pomo of Upper Lake

bruce Jones

SSHIAP Section Manager

Northwest Indian Fisheries Commission (NWIFC)

Olympia, Washington

Angie Reed

Water Resource Planner

Penobscot Indian Nation

Bangor, Maine


Air Quality Program Manager

Pala Band of Mission Indians

Pala, California