[1] Led by SS-Obersturmbannführer Adolf Eichmann, RSHA IV B4 was responsible for "Jewish affairs and evacuation"[2] in German-occupied Europe, and specifically for the deportation of Jews from outside Poland to concentration or extermination camps.
[1] The sub-department was a natural successor to the Central Office for Jewish Emigration which had initially been established by Eichmann in Vienna in August 1938.
On 24 January 1939, the Reich Central Office for Jewish Emigration (Reichszentrale für jüdische Auswanderung) was established in Berlin by Hermann Göring[3] with Reinhard Heydrich as chief.
[6] Due to its large size compared to other RSHA departments (which were housed in Prinz-Albrecht-Strasse), Unit IV B4 was based in Kurfürstenstraße 115/116, Berlin.
The departmental hierarchy, according to Raul Hilberg, was: IV B4 also had a large number of regional specialists who were deployed to various countries to assist with deportations - Anton Brunner, Dieter Wisliceny, Franz Abromeit, Siegfried Siedl, Hermann Krumey, Alois Brunner, Anton Burger, Theo Dannecker, and Hans Günther (who was the brother of Rolf Günther) being the principal figures.