American Arbitration Association, Council
American Law Institute
Arbitration International, General Editor
Association Suisse de l'Arbitrage
Chartered Institute of Arbitrators, Fellow
Claims Resolution Tribunal for Dormant Accounts in Switzerland (Arbitrator)
College of Commercial Arbitrators, Fellow
Comité français de l' arbitrage
CPR Institute, Executive Commitee
Foundation for International Arbitration Advocacy (Geneva), Council
International Commission on Holocaust Era Insurance Claims (Arbitrator)
International Council for Commercial Arbitration (ICCA), Governing Board
ICSID Panel of Arbitrators
International Fiscal Association, Study of Tax Treaty Arbitration, Co-Rapporteur
Justice of the Peace, Commonwealth of Massachusetts
King's Chapel, Boston, Trustee
London Court of International Arbitration, Former President
NAFTA Chapter 14, Financial Services Roster
New York International Arbitration Centre, Board of Advisers
Oxford International Arbitration Series, Editorial Board
© William W. Park