25 CFR § 580.3 - Who may appear before the Commission?
In any appellate proceeding under parts 582 through 585 of this subchapter, a party or limited participant may appear in person or by an attorney or other authorized representative. An attorney must be in good standing and admitted to practice before any Court of the United States, the District of Columbia, any tribal court, or the highest court of any state, territory, or possession of the United States. Any person appearing as an attorney or authorized representative shall file with the Commission a written notice of appearance. The notice must state his or her name, address, telephone number, facsimile number, email address, if any, and the name and address of the person or entity on whose behalf he or she appears.