Working Group III: Investor-State Dispute Settlement Reform

Status of preparatory work on reform options and schedule of events – Update as of 14 May 2020




Draft Working Papers for comments

ICSID and UNCITRAL Release Draft Code of Conduct for Adjudicators

May 1, 2020: Today the Secretariats of the International Centre for Settlement of Investment Disputes (ICSID) and the United Nations Commission on International Trade Law (UNCITRAL) released a draft Code of Conduct for Adjudicators

The draft Code was developed jointly by the ICSID and UNCITRAL Secretariats in the context of the work of UNCITRAL Working Group III (ISDS reform) and the process underway to amend ICSID’s rules of procedure.  

The draft provides applicable principles and detailed provisions addressing matters such as independence and impartiality, and the duty to conduct proceedings with integrity, fairness, efficiency and civility. It is based on a comparative review of standards found in codes of conduct in investment treaties, arbitration rules applicable to ISDS, and of international courts.  

Comments on the draft are welcome and may be sent to the UNCITRAL Secretariat ( and ICSID Secretariat ( on or before 15 October 2020. Comments from States, international organizations and other interested stakeholders will be compiled and published jointly by UNCITRAL and ICSID in the form and language in which they are received.


39th session 30 March - 3 April 2020, New York

Alert: Due to the Coronavirus (COVID-19) situation, the March, April and May sessions of UNCITRAL Working Groups I, III, IV, V and VI had to be postponed until further notice. The Secretariat will communicate to delegations in due course any arrangements that may be put in place to allow making progress on the working papers scheduled for consideration at those sessions.

Submission from Governments


Resumed 38 th session 20-24 January 2020, Vienna


38 th session 14-18 October 2019, Vienna


37 th session 1-5 April 2019, New York

36 th session 29 October - 2 November 2018, Vienna

35 th session, 23-27 April 2018, New York

34 th session, 27 November - 1 December 2017, Vienna


  • 30 March to 3 April 2020, New York (postponed)
  • 5-9 October 2020, Vienna (tentative)