Originally established as a unit of the National Park Service in 1997, the Oklahoma City National Memorial was de-authorized by Congress in 2004. Since that time, the National Park Service presence at the Memorial has been managed as part of Chickasaw National Recreation Area, which provides administrative controls and executive direction for the National Park Service employees stationed at the site.

The site is presently managed in partnership with other private organizations including the Oklahoma City National Memorial Foundation and the Memorial Institute for the Prevention of Terrorism.