The United States Army Corps of Engineers Tribal Nations Technical Center of Expertise (TNTCX) was established in order to provide a cost-effective administrative tool to improve USACE’s quality and effectiveness in delivering USACE missions and Federal Trust responsibilities to Federally recognized tribes. In that role, the TNTCX can engage with each of the 574 Federally recognized Native American Tribes, national and regional organizations representing Native American governments, Native American communities, and the USACE Commands serving those communities. The TNTCX program is vital to the successful management of our relationships with Tribal Nations, which helps us maintain and operate key infrastructure projects that contribute to the Nation’s economy, environment, safety, and quality of life - now and in the future.



IDA Treaties Explorer

The US National Archives holds 374 treaties between Indigenous peoples and the United States, known as the Ratified Indian Treaties. The US National Archives has conserved and digitized the treaties. Here you can see the original documents spanning more than 100 years. Most are available now and more will be added as the National Archives completes the preservation and scanning. 

IDA Treaties Explorer

White House Press Release on Indigenous Knowledge Guidance for Federal Agencies

The White House Office of Science and Technology Policy (OSTP) and the White House Council on Environmental Quality (CEQ) jointly released new government-wide guidance  and an accompanying implementation memorandum for Federal Agencies on recognizing and including Indigenous Knowledge in Federal research, policy, and decision making. This announcement coincides with the Biden-Harris Administration’s 2022 Tribal Nations Summit and responds to a 2021 OSTP-CEQ memorandum that called for development of the guidance with Tribal consultation and Indigenous community engagement, as well as agency, expert, and public input.

Check out the full press release here.

Contact Us

Tribal Nations Technical Center Expertise
4101 Jefferson Plaza, NE
Albuquerque, NM 87109

Acting Director: Jeremy Decker
Phone: 505-342-3671


USACE District Tribal Liaison List





Tribal Treaties Database

The Tribal Treaties database is an initiative supported by the White House Council on Native American Affairs. It includes agreements between tribal nations and the United States (1778-1886) published in the 1904 work “Indian Affairs: Laws and Treaties” (Volume II), compiled and edited by Charles J. Kappler.

This is a beta test site, the database will continue to evolve into early 2022 as connections are built  with present-day tribes.

Tribal Treaties Database

USACE/AISES MOU Signing Ceremony

The U.S. Army Corps of Engineers and the American Indian Science and Engineering Society (AISES) signed a partnership agreement in November, 2022. The goal of the partnership is to improve education and career opportunities in STEM for Native American professionals and students. Check out the recorded video below! 

TNTCX Hosts Tule Restoration Alliance

This week USACE Tribal Nations Technical Center of Expertise is hosting the Tule Restoration Alliance Workshop in Davis,...

Posted by U.S. Army Corps of Engineers, Sacramento District on Wednesday, March 29, 2023

Rivercane Restoration Workshop Summary Report

2021 Rivercane Restoration Workshop Summary Report

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