DOE Defense Nuclear Facilities

All Defense Nuclear Facilities fall under the ownership and jurisdiction of the Department of Energy. Click the site names below to see detailed descriptions.

  • Nevada National Security Site

    Vital Stats

    Location75 miles outside Las Vegas, Nevada
    WebsiteNevada Site Office
    Primary FunctionSupport the nation's nuclear stockpile, including storage, assessment, disposal and testing, if it were to be resumed.
    Ongoing OperationsEvaluation of sensor technologies, detection, characterization, and monitoring of nuclear weapons related activities, radiological emergency training, environmental restoration, groundwater characterization, and low-level radioactive waste management.
    StatusActive
    Nevada National Security Site Aerial Photo

    Nevada National Security Site (NV) – The NNSS (formerly the Nevada Test site) is an extensive outdoor laboratory and national experiment center located in southern Nevada, about 75 miles northwest of Las Vegas. Activities at the site include preparations for the disposition of damaged nuclear weapons, subcritical experiments, criticality experiments, emergency response training, and waste management. While underground testing has not been conducted in many years, the site is maintained in a state of readiness should testing be resumed.