The following coutries have signed the MoU:

1. Albania (05 May 2009) - Associate Members
2. Austria (04 December 2012) - Associate Members
3. Azerbaijan (15 July 2009) - Associate Members
4. Belarus (01 November 2011) - Associate Members
5. Belgium (31 May 2012) - Associate Members
6. Bosnia and Herzegovina (18 May 2010) - Associate Members
7. Bulgaria (01 December 2009) - Associate Members
8. Croatia (01 December 2009) - Associate Members
9. Cyprus (15 September 2009) - Associate Members
10. Czech Republic (22 July 2009) - Associate Members
11. Denmark (21 February 2010) - Associate Members
12. Estonia (21 May 2009) - Associate Members
13. Finland (01 December 2009) - Associate Members
14. Georgia (17 May 2009)
15. Germany (04 November 2009) - Associate Members
16. Hungary (21 November 2011) - Associate Members
17. Iceland (21 October 2010) - Associate Members
18. Ireland (21 July 2009)
19. Italy (02 March 2014) - Associate Members
20. Latvia (31 May 2012) - Associate Members
21. Lithuania (11 October 2010) - Associate Members
22. Montenegro (15 December 2010) - Associate Members
23. Netherlands (27 May 2009) - Associate Members
24. Norway (16 August 2009) - Associate Members
25. Poland (16 May 2010) - Associate Members
26. Portugal (19 November 2009) - Associate Members
27. Romania (13 April 2010) - Associate Members
28. Serbia (22 July 2019)
29. Slovakia (16 June 2009) - Associate Members
30. Slovenia (20 September 2009) - Associate Members
31. Sweden (30 May 2011) - Associate Members
32. Switzerland (27 May 2009) - Associate Members
33. Türkiye (13 November 2011) - Associate Members
34. Ukraine (29 April 2009)
35. United Kingdom (17 June 2010) - Associate Members