Organ trade (also known as the blood market) is the trading of human organs, tissues, or other body products, usually for transplantation. According to the World Health Organization (WHO), organ trade is a commercial transplantation where there is a profit, or transplantations that occur outside of national medical systems. There is a global need or demand for healthy body parts for transplantation, which exceeds the numbers available. there are more than 100,000 candidates waiting for organ transplant in the United States. The median wait time for heart and liver transplants in the U.S. between 2003 and 2014, was approximately 148 days. Average time waiting for donor organs varies significantly depending on the patients UNOS status. Patients listed as Heart Status A1 wait an average of 73 days. There is a worldwide shortage of organs available for transplantation, yet the commercial trade of human organs is illegal in all countries except Iran. Despite these prohibitions, organ trafficking and transplant tourism remain widespread (however, the data on the extent of the black market trade in organs is difficult to obtain). The question of whether to legalize and regulate the organ trade to combat illegal trafficking and organ shortage is greatly debated. This discussion typically centers on the sale of kidneys by living donors, since human beings are born with two kidneys but need only one to survive. Kidney trade in Iran Iran is the only nation that allows organs to be bought and sold for money. Due to lack of infrastructure to maintain an efficient organ transplant system in the early 1980s, Iran legalized living non-related donation (LNRD) of kidneys in 1988. The Charity Association for the Support of Kidney Patients (CASKP) and the Charity Foundation for Special Diseases (CFSD) control the trade of organs, with the support of the government. These nonprofit organizations match donors to recipients, setting up tests to ensure compatibility.