39 C.F.R. § 955.28 – (Rule 28) Sanctions.

(a) All parties and their attorneys must comply with the Board's directions and orders and adhere to all applicable standards of conduct. For attorneys, the standards include the rules of professional conduct and ethics of the jurisdictions where the attorneys are licensed to practice law.
(b) If a party or its attorney fails to comply with any direction or order issued by the Board, or engages in misconduct, the Board may impose appropriate sanctions. Sanctions may include:
1. (1) Finding disputed facts as true;
2. (2) Denying a party the right to challenge the accuracy of evidence;
3. (3) Denying a party the right to support or oppose a claim or defense;
4. (4) Denying a party the right to introduce evidence;
5. (5) Striking pleadings, in whole or in part;
6. (6) Staying further proceedings;
7. (7) Dismissing or granting the appeal, in whole or in part; and
8. (8) Imposing other appropriate sanctions.
(c) The Board may sanction individual attorneys who violate a Board order, direction, or standard of conduct if the violation seriously affects the integrity of the Board, its processes, or its proceedings. Sanctions may be public or private and may include admonishment, disqualification from a particular matter, disqualification from practice before the Board (see 39 CFR part 951), referral to a licensing authority, or other appropriate action under the circumstances.