What exactly is the united network for organ sharing (unos)?

UNOS: Is a private organization contracted by the federal government to manage the nation's organ transplant system. They manage transplant waiting list, match donors to recipients. They are involved in raising public awareness. Check them out at www.Unos.Org.

See details: This is a private, non-profit organization that manages the nation's organ transplant system. It matches transplant candidates with compatible organs. You can simple Google the term and read for yourself.