Ist Congress (1983) in Paris :
The Judicial Control of the Legality of Unilateral Acts of Public Administration

IInd Congress (1986) in Tunis :
The Access of the Public to Administrative Jurisdictions

IIIrd Congress (1989) in Helsinki :
The Proceedings before the Administrative Courts

IVth Congress (1992) in Luxembourg :
The Legal and Practical Effects of Judgements made in Administrative Courts

Vth Congress (1995) in Rome :
Provisional Emergency Measures and Expeditious Procedures

VIth Congress (1998) in Lisbon :
The Application of International Law by the Administrative Judge

VIIth Congress (2001), in Dakar :
The Safeguard of Individual Rights and Liberties by the Administrative Judge

VIIIth Congress (2004), in Madrid :
The implementation of the administrative courts' decisions

IXth Congress (2007), in Bangkok :
The status of administrative judges