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Contact: LLNL Public Affairs Office
Phone: (925)422-4599
September 11, 2001

Laboratory Response to Terrorist Emergency


  • UPDATE: The Laboratory remains open for essential functions under enhanced security operations.
    - Truck deliveries are being searched before acceptance.
    - Security checks have been moved to the outer perimeter.
    - Security force is at a heightened security level.
    - South Mall area is closed to public access.

  • We have no reason to believe that the Laboratory or its employees have been targeted.

  • The Emergency Management Center has been activated as a precautionary measure, and to coordinate communications and security activities.

  • Non-essential employees may go home and return to work tomorrow, unless otherwise notified.

  • Measures are under way to determine the welfare of Laboratory employees on travel and arrange for their safe return.

  • UPDATE: The Laboratory Visitors Center will be closed today.

  • UPDATE: The Lab’s National Atmospheric Release Advisory Center. remains on alert, monitoring the two areas for 24 hours, ready to make calculations should they be required to do so.


Founded in 1952, Lawrence Livermore National Laboratory is a national security laboratory that develops science and engineering technology and provides innovative solutions to our nation's most important challenges. Lawrence Livermore National Laboratory is managed by Lawrence Livermore National Security, LLC for the U.S. Department of Energy's National Nuclear Security Administration.