The Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU) appoints the members of the Commission for a period of up to three calendar years. A direct reappointment is possible.
The ESK should cover all technical subjects necessary for a competent advice of the BMU. The members have to provide competent and objective advice. To ensure a balanced advice, the ESK members should represent the whole range of acceptable opinions according to the state of the art in science and technology. The ESK forms committees and working groups for special technical issues.
After hearing the Commission members, the BMU appoints the chairman and his deputy.
ESK membership is a personal honorary office. ESK members are independent and not bound by directives.

At present, the ESK consists of the following members:

Dipl.-Ing. Michael Sailer
(Chairman)
Öko-Institut e. V.
Darmstadt
Prof. Dr. Thomas Fanghänel
(Vice-Chairman)
Europäische Kommission
Gemeinsame Forschungsstelle
Institut für Transurane (ITU)
Karlsruhe
Dr. Detlef Appel
PanGeo – geowissenschaftliches Büro GbR
Hanover
Dipl.-Ing. Holger Bröskamp

GNS Gesellschaft für Nuklear-Service mbH
Essen
Dr. Heinz-Walter Drotleff

TÜV NORD EnSys Hannover GmbH & Co. KG
Hanover
Dipl.-Ing. (BA) Beate Kallenbach-Herbert

Öko-Institut e. V.
Darmstadt
Dr. Horst Pitterich

Karlsruher Institut für Technologie (KIT), Eggenstein-Leopoldshafen
Prof. Dr. Meinert K. W. Rahn

Eidgenössisches Nuklearsicherheitsinspektorat
Brugg
Switzerland
Dipl.-Ing. Dieter Rittscher

Arbeitsgemeinschaft Versuchsreaktor GmbH Jülich
Dipl.-Ing. Arsène Saas

Manosque
France
Dr.-Ing. Frank Schartmann
Brenk Systemplanung GmbH