The United Network for Organ Sharing (UNOS) collects and manages data about transplants taking place in the United States. It administers the Organ Procurement and Transportation Network established by Congress in 1984. Waiting List Candidates (as of March 14) Kidney: 83,879 Liver: 15,875 Heart: 3,150 Lung: 1,854 Heart/Lung: 71 Pancreas: 1,481 Kidney/Pancreas: 2,214 Intestine: 239 