Dedicated to Promoting Tribal Self Determination & Sovereignty

ATNI is organized and chartered as a non-profit 501(c)3 corporation under the laws of the State of Oregon. The organization sets out its membership and operating policies within its Constitution and Bylaws and ATNI Policies & Procedures Manual. Authority for management of the affairs of ATNI are delegated to the Executive Council by the members and further delegated to the Executive Board, Committees, and Executive Director.



Front Page News

ATNI Convention Info

ATNI Annual Convention & Tradeshow 2014
The ATNI Annual Convention was a great success! Thank you to our host tribe, the Confederated Tribes of the Umatilla Indian Reservation and the Wildhorse Resort & Casino, our sponsors, our volunteers, and our participants.
September 22-25, 2014
For election news and more, please see our:

ATNI Event Page

Save The Date

ATNI Winter Convention
Hosted by:
Confederated Tribes of Siletz Indians
at Chinook Winds Casino Resort

February 2-5, 2015

*Please note the change of venue as of October 2014
NOV.14.14   8:30 AM - 5:00 PM
Tribal Leaders Tax Summit
Implementing HR 3043
Makeing GWE Work for Indian Country
Location: Miccosukee Resort & Gaming
500 SW177th Avenue, Miami FL 333194
RSVP to by 11.03.14
Hotel reservations, Please call (305) 222-4640
For more information, contact Millicent Proud at (305) 222-4640
Miccosukee Tribe
Oglala Sioux Tribe
Lummi Nation
Great Plains Tribal Chairman's Association
National Indian Gaming Association