Indian tribe
Indian tribe means, in reference to a proposal or application for a certificate or abandonment, an Indian tribe which is recognized by treaty with the United States, by federal statute, or by the U.S. Department of the Interior in its periodic listing of tribal governments in the Federal Register in accordance with 25 CFR 83.6(b), and whose legal rights as a tribe may be affected by the proposed construction, operation or abandonment of facilities or services (as where the construction or operation of the proposed facilities could interfere with the tribe's hunting or fishing rights or where the proposed facilities would be located within the tribe's reservation).