(a) In this subtitle the following words have the meanings indicated.
(b) “Commission” means the Commission on Indian Affairs.
(c) “Community” means a tribe, band, group, or clan.
(d) (1) “Indian” means an individual or community that is, or whose members are, descended from a tribe that inhabited North America before European contact.
(2) “Indian” includes a Native American Indian, a North American Indian, an American Indian, and an aboriginal American.