What is the specially designated nationals list?
This list (a.k.a. the SDN List) is a list comprised of individuals and entities with which U.S. persons are precluded from dealing. The individuals and entities on the SDN List were placed on the SDN List because they are associated with international narcotics or terrorism or because they are owned or controlled by, or acting for or on behalf of, the governments of countries which the U.S. considers to be hostile to U.S. foreign policy or national security objectives.