(a) The appellant. Any appellant may appear before the Board represented by an attorney duly licensed in any State, Commonwealth, Territory, or in the District of Columbia. An individual appellant may appear before the Board in person; a corporation may be represented by an officer thereof; a partnership or joint venture may be represented by a member thereof. Under special circumstances, the Board may authorize a contractor to appear before the Board represented by a duly authorized representative other than those mentioned herein for the purposes of that appeal only.

(b) The respondent. The respondent may appear before the Board represented by an attorney duly licensed in any State, Commonwealth, Territory, or in the District of Columbia. Such attorney shall be designated with authority to represent the government's interests before the Board. Alternatively, if not otherwise prohibited, the respondent may appear before the Board represented by the contracting officer or the contracting officer's authorized representative.

(c) Others. The Board may, on motion, in its discretion, permit a special or limited appearance, such as by amicus curiae. Permission to appear, if granted, will be for such purposes and in such manner as established by the Board.

(d) Notice of appearance. An attorney or other duly authorized representative representing a party before the Board shall file a notice of appearance. Such notice shall provide the person's name, address, direct dial telephone number, fax number, and e-mail address. If multiple attorneys or law firms represent a party, the contact information for each attorney shall be provided to the Board. In such instances, the party shall designate a single attorney or individual as the primary point of contact for the party. Notices of appearance shall be filed at the commencement of the appeal and shall be updated as necessary during the appeal.