ODRL International Workshops
1st International ODRL Workshop 22-23 April 2004 (Vienna, Austria) 
2nd International ODRL Workshop 7-8 July 2005 (Lisbon, Portugal) 
3rd International ODRL Workshop 11 - 13 October 2007 (Koblenz, Germany)
4th International ODRL Workshop 16 - 18 October 2008 (Poznan, Poland)
5th International ODRL Workshop 22 September 2009 (Nancy, France)
6th International ODRL Workshop 30 September - 1 October 2010 (Namur, Belgium)
7th International ODRL Workshop 28 - 29 September 2011 (Barcelona, Spain)
8th International ODRL Workshop – ODRL and beyond: Practical Applications and challenges for poLicy-base access and usage control (OPAL2025) 1 June 2025 (Portoroz, Slovenia) 