In 1953 farsighted tribal leaders in the Northwest formed the Affiliated Tribes of Northwest Indians, and dedicated it to tribal sovereignty and self-determination. Today, ATNI is a nonprofit organization representing 57 Northwest tribal governments from Oregon, Idaho, Washington, southeast Alaska, Northern California and Western Montana. ATNI is an organization whose foundation is composed of the people it is meant to serve — the Indian peoples.

In acting upon these principles ATNI has taken as its purpose to: provide a forum for sharing information on matters of interest to its member Tribes, develop consensus on matters of mutual importance, assist member Tribes in their governmental and programmatic development consistent with their goals for self-determination and self-sufficiency and provide for effective public relations and education program with the non-Indian communities. Through its conferences, forums, networks and alliances, it is the intent of ATNI to represent and advocate for the interests of its member Tribes to national Indian and non-Indian organizations and governments.

Where it is appropriate, ATNI will develop and pursue regional strategies for the development, protection and advancement of the interests of member Tribes and their people in the areas represented by ATNI committees which include: cultural affairs, economic development, human and social services, natural resources and environment, Tribal governance, and ad hoc task forces. Each committee and task force shall determine its own mission and course consistent with the operating policies and principles of the Affiliated Tribes. ATNI Executive Board and all standing committees and task forces pursue their goals generally in the following activity areas:

Provide forums for the exchange of information of matters of mutual concerns among member Tribes and their constituencies.
Provide processes for the development of consensus on policy and positions on issues.
Provide recommendations for legislation and government policy on behalf of ATNI and member Tribes.
Monitor, collect information, analyze data, disseminate findings and develop policy positions on matters of interest to ATNI and its member Tribes.
Provide technical assistance, benchmarking, (standard setting), education, and training to ATNI and its member Tribes.
Establish and maintain mutual assistance networks and foster strategic alliances between ATNI, its member Tribes, and beneficial organizations.
Provide for an effective public relations and education program to non-Indian communities on behalf of ATNI and its member Tribes.
ATNI Internal Revenue Service Organization Documentation - Link

Principals, Purpose & Goals of ATNI