CFR /  Title 25  /  Part 502  /  Sec. 502.12 Indian lands.

Indian lands means:

(a) Land within the limits of an Indian reservation; or

(b) Land over which an Indian tribe exercises governmental power and that is either--

(1) Held in trust by the United States for the benefit of any Indian tribe or individual; or

(2) Held by an Indian tribe or individual subject to restriction by the United States against alienation.