The Bureau of Indian Affairs was formed in 1824 to deal with Native Americans inside the United States . It is responsible for the administration and management of 55700000 a of land held in trust by the United States for Native Americans in the United States , Native American Tribes and Alaska Natives . The Bureau of Indian Affairs is one of two Bureaus under the jurisdiction of the Assistant Secretary â '' Indian Affairs : the Bureau of Indian Affairs and the Bureau of Indian Education , which provides education services to approximately 48,000 Native Americans .