In arbitration proceedings presided over by three-member arbitral tribunals, there may be circumstances in which the arbitrators cannot reach a unanimous decision on the substantive dispute or significant issues such as jurisdiction. In those circumstances, in arbitrations under the Arbitration Act 1996 (AA 1996) and under the leading arbitration rules, arbitral awards can be rendered by a majority of the tribunal. What is the value of a dissenting opinion? Dissenting opinions do not give grounds for any form of challenge or appeal of an arbitral award unless the parties, by agreement or by adopting particular sets of arbitration rules, have decided that an award must be made unanimously. However, a dissenting opinion does have some value to a dissatisfied party as, for example: • in the context of a challenge or appeal to an arbitral award, a dissenting opinion may be admissible as evidence in relation to procedural matters (eg, B v A—see News Analysis: What is the status of a dissenting opinion in arbitral award? What challenge may be brought if an error as to the application of