1. 4. Party Representatives should identify themselves to the other Party or Parties and the Arbitral Tribunal at the earliest opportunity. A Party should promptly inform the Arbitral Tribunal and the other Party or Parties of any change in such representation.

2. 5. Once the Arbitral Tribunal has been constituted, a person should not accept representation of a Party in the arbitration when a relationship exists between the person and an Arbitrator that would create a conflict of interest, unless none of the Parties objects after proper disclosure.

3. 6. The Arbitral Tribunal may, in case of breach of Guideline 5, take measures appropriate to safeguard the integrity of the proceedings, including the exclusion of the new Party Representative from participating in all or part of the arbitral proceedings.

IBA COMMITTEE COMMENTS

Comments to Guidelines 4–6

Changes in Party representation in the course of the arbitration may, because of conflicts of interest between a newly-appointed Party Representative and one or more of the Arbitrators, threaten the integrity of the proceedings. In such case, the Arbitral Tribunal may, if compelling circumstances so justify, and where it has found that it has the requisite authority, consider excluding the new Representative from participating in all or part of the arbitral proceedings. In assessing whether any such conflict of interest exists, the Arbitral Tribunal may rely on the IBA Guidelines on Conflicts of Interest in International Arbitration.

Before resorting to such measure, it is important that the Arbitral Tribunal give the Parties an opportunity to express their views about the existence of a conflict, the extent of the Tribunal's authority to act in relation to such conflict, and the consequences of the measure the Tribunal is contemplating.