This cover features a special postmark promoting organ donation.
Organ donation is the removal of the tissues of the human body from a person who has recently died, or from a living donor, for the purpose of transplanting. Organs and tissues are removed in a surgical procedure. People of all ages may be organ and tissue donors. At the time of death the organ, tissue, or eye recovery agency will make a determination, based on the person's medical and social history, of which organs/tissues are suitable for transplantation.
Organ donation typically takes place after brain death, the irreversible loss of all brain functions, including the brain stem. Tissue donation can take place after brain death or cardiac death (the irreversible loss of cardiovascular function). The laws of different countries allow potential donors to permit or refuse donation, or give this choice to relatives. The popularity of donations varies substantially among countries.