Navajo Nation Bar Association

The Navajo Nation Bar Association (NNBA) is the mandatory bar association responsible for licensing all legal practitioners who wish to appear in the courts of the Navajo Nation. Formed in 1978, the association operates within a legal framework that blends Anglo-American law with Navajo traditional law, which is rooted in the Nation's matriarchal culture.

Source: Wikipedia — Navajo Nation Bar Association (CC BY-SA 4.0)