The new ICC Rules of Arbitration, which have entered into force on 1 January 2012, are first and foremost a response to criticisms of lack of transparency and efficiency. The 2012 Rules transform, on the one hand, some practices regarding complex arbitrations (multiparty,multi-contract) and investment arbitrations into provisions of the Rules for the sake of transparency. On the other hand, the 2012 Rules include some new provisions on the management of ICC arbitration aimed at rendering the procedure more efficient. The introduction of the emergency arbitrator into the new Rules is particularly notable.