The International Association of Supreme Administrative Jurisdictions (IASAJ) was found in 1983 and assembles today approximately 100 high jurisdictions and international organisations in all five continents.

The purpose of the International Association of Supreme Administrative Jurisdictions (IASAJ) is to promote exchanges of ideas and experiences between jurisdictions empowered to adjudicate, in last instance, disputes arising from the action of public administrations. It seeks to encourage cooperation on questions of law pending before these courts or related to their organization and functioning.

In order to achieve its mission, the Association may initiate, promote or undertake law studies ; it gathers all relevant information on the organization, functioning and case law of the supreme administrative jurisdictions and diffuses or contributes to diffuse it to any interested party. Furthermore, it favours contacts between the members of the different courts involved.

The IASAJ organizes, generally every three-year, a congress dealing with issues falling within its scope. It may admit on these occasions, as observers, representatives of jurisdictions which are not members of the Association.

The Association conceives, carries out and publishes a compendium of decisions and judgements in comparative law, dealing will the topic of its triennial congress ; therefore, it contributes to promote, in an international perspective, the understanding of administrative law.