The FSK was officially renamed the "Reichssicherheitsdienst" (RSD) on 1 August 1935. Heinrich Himmler, head of the SS, gained full control over the RSD in October 1935. Although Himmler was officially named chief, Rattenhuber remained in command and took his orders for the most part from Hitler. Himmler was given administrative control over the unit. The RSD should not be confused with the "Sicherheitsdienst" or SD. The RSD was technically on the staff of Himmler with the members wearing the uniform of the SS with the SD diamond on their lower left sleeve.