Public comment
Winter 2024 public comment: open through March 19. Learn about public comment and add your voice
Special session for expedited placement variance was open Dec. 21 - Feb. 4. See comments
Member organizations
Transplant hospitals, organ procurement organizations (OPOs) and histocompatibility laboratories in the United States all belong to UNOS.
Learn more about member organizations
Regions
The US is divided into 11 geographic regions to facilitate transplantation:
View list of states in regions
- Region 1: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Eastern Vermont
- Region 2: Delaware, District of Columbia, Maryland, New Jersey, Pennsylvania, West Virginia, Northern Virginia
- Region 3: Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, Puerto Rico
- Region 4: Oklahoma, Texas
- Region 5: Arizona, California, Nevada, New Mexico, Utah
- Region 6: Alaska, Hawaii, Idaho, Montana, Oregon, Washington
- Region 7: Illinois, Minnesota, North Dakota, South Dakota, Wisconsin
- Region 8: Colorado, Iowa, Kansas, Missouri, Nebraska, Wyoming
- Region 9: New York, Western Vermont
- Region 10: Indiana, Michigan, Ohio
- Region 11: Kentucky, North Carolina, South Carolina, Tennessee, Virginia