Session Dates Year Venue Chair Vice Chair or Co-Chair at the Session Country Chair/ Vice or Co-Chair
1  7-10 Aug  1962 Washington DC, USA Mr. W.S. Wooster  USA
2  27-30 Jan  1964 Paris, France Mr. J.B. Tait  UK
3  31 Mar – 2 Apr  1966 Copenhagen, Denmark Mr. J.B. Tait UK
4  23-26 Sep  1968 Paris, France Mr. CH. Sauer  Canada
5  21-25 Sep  1970 Geneva, Switzerland Dr. T.S. Austin  USA
6  20-24 Sep  1971 Rome, Italy Dr. T.S. Austin  USA
7  9-13 Ju  1973 New York, USA Dr. T.S. Austin  USA
8  12-17 May  1975 Rome, Italy Dr. T.S. Austin  USA
9  15-19 Jan  1979 New York, USA Mr. T. Winterfeld  USA
10  5-13 Aug  1981 Hamburg, Germany Mr. T. Winterfeld  USA
11  9-18 Jan  1984 New York, USA Mr. D. Kohnke  Germany
12  10-17 Dec  1986 Moscow, Russia Mr. D. Kohnke  Germany
13  17-24 Jan  1990 New York, USA Dr. N. Flemming Mr. V. Smirnov  UK/Russian Fed
14  1-9 Dec  1992  Paris, France Dr. N. Flemming Mr. V. Smirnov  UK/Russian Fed
15  23-31 Jan  1996 Athens, Greece Dr. J.R. Wilson Mr. V. Smirnov  Canada/Russian Fed
16  31 Oct – 8 Nov  2000 Lisbon, Portugal Mr. Ben Searle Dr. E. Balopoulos Australia/ Greece
17 3-7 Mar 2003 Paris, France Dr. E. Balopoulos Greece
18  26-30 Apr 2005 Ostend, Belgium Dr. L. Rickards Mr R. Rojas UK/Chile
19  12-16 Mar 2007 Trieste, Italy Dr. L. Rickards Mr. R. Rojas  UK/Chile
20  4-8 May 2009 Beijing, China Mr G.Reed Dr. Malika Bel-Hassen Abid  Australia/Tunisia
21 23-26 March 2011 Liège, Belgium Mr Greg Reed Dr.Malika Bel-Hassen Abid Australia/Tunisia
22 11-15 March 2013 Ensenada, Mexico Ms Sissy Iona Mr Ariel Troisi Greece/Argentina
23 16-20 March 2015 Bruges, Belgium Ms Sissy Iona Mr Ariel Troisi Greece/Argentina
24 28-31 March 2017 Kuala Lumpur, Malaysia Ms Cyndy Chandler Prof Yutaka Michida USA/Japan
25 18-22 February 2019 Tokyo, Japan Ms Cyndy Chandler  Prof Yutaka Michida USA/Japan
26 12-14 January 2021 online Mr Sergey Belov Mr Taco de Bruin Russian Fed/The Netherlands
27 22-24 March 2023 Paris, France Mr Sergey Belov Mr Taco de Bruin Russian Fed/The Netherlands
28 12-14 March 2025 Santa Marta, Colombia Dr Paula Sierra Ms Lotta Fyrberg Colombia/Sweden