For a tribe to qualify as having been restored to Federal recognition for purposes of Sec. 292.7, the tribe must show at least one of the following:
(a) Congressional enactment of legislation recognizing, acknowledging, affirming, reaffirming, or restoring the government-to-government relationship between the United States and the tribe (required for tribes terminated by Congressional action);
(b) Recognition through the administrative Federal Acknowledgment Process under Sec. 83.8 of this chapter; or
(c) A Federal court determination in which the United States is a party or court-approved settlement agreement entered into by the United States.