A tribal member shall be subject to disenrollment if it is determined
that he/she:
A. Is currently enrolled with another Indian tribe, band or group, whether
federally recognized by the United States and/or Canada, or not; or
B. Is determined to have been placed on the membership roll as a result
of a mistake of fact. For purposes of this section the term "mistake
of fact" refers to an enrollment decision that has resulted from a
fraudulent or unintentional failure to disclose vital information,
or from a submission of fraudulent or incorrect vital records, or
errors in genealogical research.