28 CFR 68.35 - Standards of conduct.
(a) All persons appearing in proceedings before an Administrative Law Judge are expected to act with integrity, and in an ethical manner.
(b) The Administrative Law Judge may exclude from proceedings parties, witnesses, and their representatives for refusal to comply with directions, continued use of dilatory tactics, refusal to adhere to reasonable standards of orderly and ethical conduct, failure to act in good faith, or violation of the prohibition against ex parte communications. The Administrative Law Judge shall state in the record the cause for barring an attorney or other individual from participation in a particular proceeding. The Administrative Law Judge may suspend the proceeding for a reasonable time for the purpose of enabling a party to obtain another attorney or representative.