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This work is the result of the efforts of a Task Force set up by the Conference of European Statisticians (CES). The Task Force members were: Ivan Fellegi (Canada), Otto Andersen (Denmark), Teimuraz Beridze (Georgia), Luigi Biggeri (Italy) and Tadeusz Toczynski (Poland). Dennis Trewin (Australia), the Chairman of the Task Force, made a significant contribution to the work by drafting the text and incorporating the inputs from countries and international organizations throughout the several consultation stages of the document.

Tiina Luige and Gauri Khanna of the Statistical Division of the UNECE were of great assistance to the Task Force.

Svante Öberg (Sweden) and Heinrich Brüngger (UNECE) also provided considerable assistance to the Task Force during the course of their work.

Several countries provided case studies to support the Guidelines and their efforts are greatly appreciated.

Finally, the Bureau of the Conference of European Statisticians (CES) provided constructive guidance throughout this project.


These Guidelines have been prepared at the request of the CES by a Task Force chaired by Dennis Trewin (the Australian Statistician).

The guidelines and Core Principles of Confidentiality and Microdata Access were adopted by the CES plenary session on June 2006 and the CES Bureau in October 2006.

The Guidelines are intended as a dynamic document to be updated from time to time: in particular through the incorporation of new case studies.

Comments are always welcome. Comments can be sent to