Just a few days after the Wannsee Conference in January 1942, Himmler ordered Glücks to prepare the camps for the immediate arrival of 100,000 Jewish men and 50,000 women being evacuated from the Reich as labourers in lieu of the diminishing availability of Russian prisoners. In February 1942, the CCI became "Amt D" of the "Wirtschafts- und Verwaltungshauptamt" (SS Economic and Administrative Department; WVHA) under SS-"Obergruppenführer" Oswald Pohl. Glücks continued to manage the camp administration until the end of the war. Therefore, the entire concentration camp system was placed under the authority of the WVHA with the Inspector of Concentration Camps now a subordinate to the Chief of the WVHA. By March 1942, Glücks was routinely receiving direct instructions from the head engineer and SS-General Hans Kammler, to meet the productivity demands of SS engineers.