25 CFR 151.7: Is Tribal consent required for nonmember acquisitions?

An individual Indian or Tribe may acquire land in trust status on an Indian reservation other than its own only when the governing body of the Tribe having jurisdiction over such reservation consents in writing to the acquisition; provided, that such consent shall not be required if the individual Indian or the Tribe already owns an undivided trust or restricted interest in the parcel of land to be acquired.