#iso-3166

[stxalq]

tribes, nations, confederations are the admin_0 you'd typically ask and identify by. if it's federally recognized or is the body fighting for recognition, that's the name you use when answering "what tribe". clan is not something every tribe uses as a subdivision and those that do it tends to get into religious secrets or at the very least old caste or status systems and it seems a bit forward to jump in and ask a person directly the position of their family

[pitch-and-moan]

ISO-3166-1:2006

The story of the surprisingly contentious release of the second edition of the ISO's country codes list.