On 25 June 2010, the United Nations Commission on International Trade Law adopted the revised UNCITRAL Arbitration Rules (the “Rules”).

The original UNCITRAL Arbitration Rules were adopted in 1976 and have been used for the settlement of a broad range of disputes, including disputes between private commercial parties where no arbitral institution is involved, investor-State disputes, State-to-State disputes and commercial disputes administered by arbitral institutions.

The revision is aimed at enhancing the efficiency of arbitration under the Rules and does not alter the original structure of the text, its spirit or drafting style.

The Rules, as revised, include more provisions dealing with, among others, multiple parties arbitration and joinder, liability, and a procedure to object to experts appointed by the arbitral tribunal. A number of innovative features contained in the Rules aim to enhance procedural efficiency, including revised procedures for the replacement of an arbitrator, the requirement for reasonableness of costs and a review mechanism regarding the costs of arbitration. The Rules also include more detailed provisions on interim measures.

The Rules will take effect from 15 August 2010 and will be presumed to apply to all arbitration agreements referring to UNCITRAL arbitration concluded after that date, unless the parties have agreed otherwise.