U.S. Department of the Interior and the Bureau of Indian Affairs headquarters

The Main Interior Building at 1849 C Street NW houses the Department of the Interior, which oversees the Bureau of Indian Affairs and the Office of the Assistant Secretary-Indian Affairs. The Bureau of Indian Affairs, established in 1824 and administered within Interior, is the federal agency responsible for certain government-to-government relations with federally recognized tribes and management of some tribal trust lands. Policy decisions, consultations, and administrative actions affecting Native nations are conducted from this Washington, D.C. headquarters.