This legislation establishes the Historic Greenwood District--Black Wall Street National Monument in Oklahoma, designating it as a unit of the National Park System. The monument's primary purpose is to preserve, protect, and interpret resources associated with the Historic Greenwood District, Black Wall Street, and the tragic 1921 Tulsa Race Massacre, highlighting their significance in both Oklahoma and U.S. history. Its establishment is contingent upon the Secretary of the Interior determining that a sufficient quantity of land or interests in land has been acquired to form a manageable park unit, with boundaries generally depicted on a specific map. The Secretary of the Interior will administer the National Monument and is authorized to acquire land through donation, purchase from willing sellers, or exchange. The bill also mandates the preparation of a management plan within three years of funding availability. Furthermore, it establishes the Historic Greenwood District--Black Wall Street National Monument Advisory Commission , comprising 11 members, including 7 descendants of individuals from the 1921 Greenwood District, to advise the Secretary on the monument's development and management, including visitor services and infrastructure. The Commission is set to terminate 10 years after the monument's establishment.