The U.S. Department of Energy’s Republic of the Marshall Islands Special Medical Care and Logistics Program (Special Medical Care Program) provides medical examinations and treatment for potential radiation-related cancers, and logistical support associated with providing those services, for members of the population of the Rongelap and Utrik Atolls who were exposed to radiation as the result of the 1954 U.S. thermonuclear weapons test, which was code-named “Castle Bravo.” There were 93 individuals eligible for participation in the program as of October 1, 2018.