UN General AssemblyThe new UNCITRAL Rules on Transparency in Treaty-based Investor-State Arbitration entered into force on 1 April, 2014.

The new Transparency Rules require public access to documents produced during treaty-based investor-State arbitrations brought under the UNCITRAL Arbitration Rules, as well as public access to arbitral hearings and the ability for third parties to make submissions, with certain exceptions. The Transparency Rules apply to investor-State arbitration initiated under the UNCITRAL Arbitration Rules pursuant to a treaty providing for the protection of investments or investors concluded on or after 1 April 2014, unless the parties agree otherwise. 

Parties may also agree to apply the Transparency Rules in other situations, for example in a treaty-based arbitration under the Stockholm Chamber of Commerce (‘SCC’) Rules.

Learn more about transparency in investment arbitration in the Arbitration toolbox.