CSSD stands for Central Sterile Supply Department and is responsible for processing, sterilizing, storing, and distributing sterile and non-sterile supplies throughout a hospital. The modern concept of CSSD emerged during World War II to ensure aseptic technique and prevent sepsis. CSSD is now an integral part of every hospital, with its location and size dependent on the hospital bed size. Key functions of CSSD include receiving, sorting, cleaning, inspecting, assembling, packing, sterilizing, storing, and distributing supplies to all departments of the hospital.