A Checklist explaining the options available to an arbitrator presiding over a US arbitration to address misconduct by a party's counsel and other arbitration participants. This Checklist provides an overview of the courts' treatment of arbitral sanctions, identifies the sources of authority for an arbitrator to sanction or otherwise address misconduct under the rules of US arbitral institutions, and explains the actions an arbitrator may take to address and sanction attorney misconduct during arbitral proceedings.